ILLUMINATION OPTICAL SYSTEM AND PROJECTOR USING THE SAME

An illumination optical system includes: a light source that generates excitation light; a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than the irradiation spot of the excitation light; a plate in which the fluorescent body is disposed; and a driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body. 1. An illumination optical system comprising:a light source that generates excitation light;a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than an irradiation spot of the excitation light;a plate in which the fluorescent body is disposed; anda driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body.2. The illumination optical system according to claim 1 , wherein the driving mechanism moves the plate in an X direction and a Y direction orthogonal to the X direction so that the irradiation spot of the excitation light can two-dimensionally move over the fluorescent body.3. The illumination optical system according to claim 1 , wherein timing of moving the irradiation spot of the excitation light with respect to the fluorescent body is set based on a service life of the fluorescent body.4. The illumination optical system according to claim 1 , further comprising a temperature sensor for measuring a temperature of the fluorescent body claim 1 ,wherein timing of moving the irradiation spot of the excitation light with respect to the fluorescent body is set based on a service life of the fluorescent body and the temperature of the fluorescent body.5. The illumination optical system according to claim 1 , further comprising a temperature sensor for measuring a temperature of the fluorescent body claim 1 ,wherein timing of moving the ...

LIGHTING APPARATUS FOR GENERATING LIGHT

The invention relates to a lighting apparatus for generating light. A primary light generator generates primary light (), which is converted by a light converting material () into secondary light (), wherein the primary light is directed to a primary surface () of the light converting material. An enclosure () comprising a transparent cover () hermetically encloses the light converting material, wherein the transparent cover is transparent to the primary light and located on the primary surface of the light converting material. The enclosure increases the photostability of the light converting material. This allows increasing the intensity of the primary light by, for example, increasing the power of the primary light and, thus,of the secondary light, and/or by focusing the primary light onto a smaller area on the primary surface, thereby allowing decreasing the optical Étendue of the secondary light, without damaging the light converting material. 1. A lighting apparatus for generating light , the lighting apparatus comprising:a primary light generator for generating primary light,a light converting material for converting the primary light into secondary light wherein the primary light generator and the light converting material are arranged for allowing the primary light to be directed to a primary surface-;; the light converting material,an enclosure for hermetically enclosing the light converting material, wherein the enclosure comprises a transparent cover, which is transparent to the primary light and which is located on the primary surface is of the light converting material.2. The lighting apparatus as defined in claim 1 , wherein the transparent cover comprises a planar outer surface which is located on the primary surface of the light converting material.3. The lighting apparatus as defined in claim 1 , wherein the transparent cover comprises a curved outer surface claim 1 , which is directed away from the light converting material claim 1 , for ...

LIGHT SOURCE UNIT CAPABLE OF PREVENTING DETERIORATION OF LUMINESCENT MATERIAL LAYER, ILLUMINATING METHOD OF LIGHT SOURCE UNIT, AND PROJECTOR

There is provided a light source unit including an excitation light source emitting excitation light, and a luminescent member having a transmission portion transmitting excitation light from the excitation light source, a first luminescent material layer placed beside the transmission portion on one side of the luminescent member and a second luminescent material layer placed beside the transmission portion on the other side of the luminescent member, wherein the first luminescent material layer and/or the second luminescent material layer emits luminous light by being excited by the excitation light, and wherein a guiding optical system is provided which shines excitation light which has passed through the transmission portion from the excitation light source on to the first luminescent material layer and causes luminous light emitted from the first luminescent material layer to be incident on the transmission portion. 1. A light source unit comprising:an excitation light source which emits excitation light; anda luminescent member which comprises a transmission portion transmitting excitation light from the excitation light source, a first luminescent material layer placed beside the transmission portion on one side of the luminescent member and a second luminescent material layer placed beside the transmission portion on the other side of the luminescent member whereinthe first luminescent material layer and/or the second luminescent material layer emits luminous light by being excited by the excitation light; anda guiding optical system which guides the excitation light and the luminous light so as to shine the excitation light which has passed through the transmission portion from the excitation light source on to the first luminescent material layer and to cause luminous light emitted from the first luminescent material layer to be incident on the transmission portion.2. The light source unit according to claim 1 , whereinthe second luminescent material layer ...

OPTICAL LENS AND PROJECTION APPARATUS

An optical lens includes a first lens with a positive refractive power, a second lens having a diffractive optical surface and a negative refractive power, and a third lens with a positive refractive power arranged in order from a magnified side to a minified side. A total number of lenses with refractive powers in the optical lens is smaller than six, and the first lens, the second lens and the third lens are made of plastic. 1. An optical lens , comprising:a first lens with a positive refractive power, a second lens having a diffractive optical surface and a negative refractive power, and a third lens with a positive refractive power arranged in order from a magnified side to a minified side, a total number of lenses with refractive powers in the optical lens being smaller than six, and the first lens, the second lens and the third lens being made of plastic.2. The optical lens as claimed in claim 1 , wherein the optical lens further comprises a lens with a negative refractive power disposed between the first lens and the second lens.3. The optical lens as claimed in claim 1 , wherein a depth of the diffractive optical surface is in the range of 0.29 um-2.5 um.4. The optical lens as claimed in claim 1 , wherein the optical lens further comprises an aperture stop claim 1 , and a distance between the aperture stop and the diffractive optical surface is kept fixed.5. The optical lens as claimed in claim 1 , wherein the optical lens further includes a Fresnel lens with a refractive power.6. The optical lens as claimed in claim 1 , wherein each of the first lens claim 1 , the second lens and the third lens is an aspheric lens.7. The optical lens as claimed in claim 1 , wherein the first lens and the third lens are made of PMMA claim 1 , and the second lens is made of EP5000 plastic.8. The optical lens as claimed in claim 1 , wherein the first lens and the third lens are made of PMMA claim 1 , and the second lens is made of E48R plastic.9. The optical lens as claimed in ...

PROJECTOR AND OPTICAL MODULE

An optical module including a transparent component and at least one coil device is provided. The at least one coil device is connected to the transparent component and includes a main body and at least one extending wire. The at least one extending wire is extended out from the main body, the at least one coil device is adapted to be driven by a magnetic force to vibrate along at least one rotation axis, and a length of the at least one extending wire is in positive correlation with a width of the transparent component along a direction. The direction is perpendicular to the at least one rotation axis and perpendicular to an optical axis of the transparent component. In addition, a projector having the optical module is also provided. 1. A projector , comprising:a light source, adapted to provide an illumination beam;a light valve, located at a transmitting path of the illumination beam and adapted to convert the illumination beam into an image beam; a transparent component, located at a transmitting path of the image beam; and', 'at least one coil device, connected to the transparent component and comprises a main body and at least one extending wire, wherein the at least one extending wire is extended out from the main body, the at least one coil device is adapted to be driven by a magnetic force to vibrate along at least one rotation axis, and a length of the at least one extending wire is in positive correlation with a width of the transparent component along a direction, wherein the direction is perpendicular to the at least one rotation axis and perpendicular to an optical axis of the transparent component; and, 'an optical module, comprisinga projection lens, located at the transmitting path of the image beam and adapted to project the image beam out of the projector.2. The projector according to claim 1 , wherein the length of the at least one extending wire is larger than fifty times a maximum displacement of the transparent component.3. The projector ...

PROJECTION APPARATUS AND IMAGING MODULE THEREOF

An imaging module includes a display element and an image displacement device. The display element includes an active display surface adapted to receive an illumination beam, convert the illumination beam into an image beam, and transmit the image beam. The image displacement device includes an optical component located on a transmission path of the image beam and adapted to allow the image beam to pass therethrough, a carrier, a base and at least one actuator, wherein the optical component is disposed on the carrier, the at least one actuator is disposed on the base, one end of the at least one actuator is connected to the carrier to drive the optical element on the carrier to swing relative to the base, and an orthographic projection area of the at least one actuator on a reference plane does not overlap with an orthographic projection area of the active display surface. 1. An imaging module , comprising:a display element, comprising an active display surface, the active display surface adapted to receive an illumination beam and convert the illumination beam into an image beam, and the image beam transmitted by the active display surface; andan image displacement device, comprising an optical component, a carrier, a base and at least one actuator, wherein the optical component is disposed on the carrier, the optical component is located on a transmission path of the image beam and is adapted to allow the image beam to pass therethrough, the at least one actuator is disposed on the base, one end of the at least one actuator is connected to the carrier to drive the optical element on the carrier to swing relative to the base, a plane where the active display surface is located is a reference plane, and an orthographic projection area of the at least one actuator on the reference plane does not overlap with an orthographic projection area of the active display surface.2. The imaging module according to claim 1 , wherein a distance from the active display surface to ...

IMAGE-GENERATION DEVICE FOR A HEAD-UP DISPLAY AND METHOD FOR CONTROLLING SUCH A DEVICE

The invention relates to an image-generation device () for a head-up display (), comprising: a light source, a light modulator suitable for spatially modulating the light emitted by the light source, and a computer () suitable for controlling the light of source and the light modulator such that they generate an image. According to the invention, the light source is composed of a plurality of separate light elements, and the computer is able to modulate the light intensity emitted by each light element independently of the light intensity emitted by the other light elements. 1. An image-generating device for head-up display , comprising:a light source;a light modulator for spatially modulating the light emitted by the light source; anda computer for controlling the light source and the light modulator so that they generate an image,wherein the light source is formed by several distinct light elements, andthe computer modulates the light intensity emitted by each light element independently of the light intensities emitted by the other light elements.2. The image-generating device as claimed in claim 1 , wherein an optical assembly is provided which is interposed between the light source and the light modulator and which contains the light emitted by each light element to a corresponding effective zone of the light modulator.3. The image-generating device as claimed in claim 2 , wherein the optical assembly is such that each effective zone of the light modulator is distinct from the other effective zones and contiguous to other effective zones.4. The image-generating device as claimed in claim 2 , wherein claim 2 , the image to be generated is composed of different parts each adapted to be formed by one of the effective zones of the light modulator and by the corresponding light element claim 2 , wherein the computer comprises:means for acquiring the image to be generated,detection means adapted to check whether, in each part of the image to be generated, there is ...

PROJECTION-TYPE IMAGE DISPLAY APPARATUS

A projection-type image display apparatus includes a light source unit that emits light, an image generating unit that generates image light according to an input video signal, a light-guide optical system that guides the light from the light source unit to the image generating unit, and a projection optical system that projects the image light generated by the image generating unit. The light source unit includes a light source that produces light, phosphor that is excited by the light from the light source, and a dichroic mirror that directs the light from the light source to the phosphor. The dichroic mirror is arranged with an incident angle of the light from the light source being 50° or more and 60° or less. 1. A projection-type image display apparatus comprising:a light source unit that emits light;an image generating unit that generates image light according to an input video signal;a light-guide optical system that guides the light from the light source unit to the image generating unit; anda projection optical system that projects the image light generated by the image generating unit, wherein a light source that produces light,', 'phosphor that is excited by the light from the light source, and', 'a dichroic mirror that directs the light from the light source to the phosphor,', 'the dichroic mirror is arranged with an incident angle of the light from the light source being 50° or more and 60° or less., 'the light source unit includes'}2. The projection-type image display apparatus according to claim 1 , wherein the incident angle is 55°.3. The projection-type image display apparatus according to claim 1 , further comprising a second mirror that reflects the light from the light source toward the dichroic mirror claim 1 ,wherein the second mirror is arranged with an angle of reflection of the light from the light source is equal to the incident angle.4. The projection-type image display apparatus according to claim 1 , whereinthe dichroic mirror reflects ...

PROJECTION-TYPE IMAGE APPARATUS

A projection-type image display apparatus has a projection optical system that can sufficiently meet requirements for significant reduction in a throw distance and a large image and that can downsize. A projection image display apparatus of an oblique type comprising, inside a housing: a light source; an image display element configured to modulate an intensity of light from the light source in accordance with an image signal; and a projection lens system including a plurality of lenses configured to project image light onto a projection plane from an oblique direction, the image light being modulated from the image display element. The projection lens system has a lens integrally having an aspherical lens surface and a freeform lens surface, and the lens integrally having the aspherical lens surface and the freeform lens surface is arranged in the projection lens system so that light components of luminous flux are separated. 1. A projection image display apparatus of an oblique type comprising , inside a housing:a light source;an image display element configured to modulate an intensity of light from the light source in accordance with an image signal; anda projection lens system including a plurality of lenses configured to project image light onto a projection plane from an oblique direction, the image light being modulated from the image display element,wherein the projection lens system has a lens integrally having an aspherical lens surface and a freeform lens surface, andthe lens integrally having the aspherical lens surface and the freeform lens surface is arranged at a position in the projection lens system at which light components of luminous flux are separated from one another.2. The projection image display apparatus according to claim 1 ,wherein the lens integrally having the aspherical lens surface and the freeform lens surface is arranged at a position of a lens group that is the closest to the projection plane in the projection lens system.3. The ...

ADJUSTABLE LIGHT DISTRIBUTION FOR ACTIVE DEPTH SENSING SYSTEMS

Aspects of the present disclosure relate to a device for active depth sensing with an adjustable distribution of light projected. An example device includes a light projector. The light projector includes a light source configured to emit a light and a diffractive element. The diffractive element includes a first diffractive optical element having a first refractive index and configured to project a first distribution of light, a second diffractive optical element having a second refractive index and configured to project a second distribution of light based on a refractive material between the first diffractive optical element and the second diffractive optical element, and the refractive material located between the first diffractive optical element and the second optical element. The refractive material is adjustable to have a second refractive index for the first mode and a third refractive index for the second mode. 1. A device comprising a light projector , the light projector comprising:a light source configured to emit light; and a first diffractive optical element having a first refractive index, the first diffractive optical element configured to project a first distribution of light from the emitted light;', 'a second diffractive optical element having a second refractive index, the second diffractive optical element configured to project a second distribution of light from the emitted light based on a refractive material between the first diffractive optical element and the second diffractive optical element; and', 'a refractive material located between the first diffractive optical element and the second diffractive optical element, wherein the refractive material is adjustable between a first mode and a second mode, wherein the refractive material has the second refractive index in the first mode, and wherein the refractive material has a third refractive index in the second mode., 'a diffractive element, comprising2. The device of claim 1 , wherein: ...

ADJUSTABLE LIGHT PROJECTOR FOR FLOOD ILLUMINATION AND ACTIVE DEPTH SENSING

Aspects of the present disclosure relate to an adjustable light projector for active depth sensing and flood illumination. An example device includes a light projector that includes a light source to emit a light along a first direction and a diffractive element positioned in a path of the emitted light along the first direction. The diffractive element includes a diffractive optical element having a first refractive index and configured to project a distribution of focused light from the emitted light during a first mode. The diffractive element also includes a diffusion element having a second refractive index and configured to diffuse the emitted light during a second mode. 1. A device comprising a light projector , the light projector comprising:a light source configured to emit a light along a first direction; and a diffractive optical element having a first refractive index, the diffractive optical element configured to project a distribution of focused light from the emitted light during a first mode of the light projector; and', 'a diffusion element having a second refractive index, the diffusion element configured to diffuse the emitted light during a second mode of the light projector., 'a diffractive element positioned in a path of the emitted light along the first direction, comprising2. The device of claim 1 , wherein:the diffractive element further comprises one or more electrical contacts coupled to the diffusion element;the device is configured to apply electricity to the diffusion element via the one or more electrical contacts; andthe second refractive index is adjustable based on whether an electricity is applied to the diffusion element.3. The device of claim 1 , further comprising a refractive material located between the diffractive optical element and the diffusion element claim 1 , wherein a third refractive index of the refractive material is adjustable between:for the first mode, different from the first refractive index; andfor the second ...

ADJUSTABLE LIGHT DISTRIBUTION FOR ACTIVE DEPTH SENSING SYSTEMS

Aspects of the present disclosure relate to systems and methods for active depth sensing. An example device includes a light projector. The light projector includes a light source to emit light and a diffractive element. The diffractive element is configured to receive the emitted light that is polarized, project a first distribution of light when the received light has a first polarity, and project a second distribution of light when the received light has a second polarity. 1. A device comprising a light projector , the light projector comprising:a light source configured to emit a light; and receive the emitted light that is polarized;', 'project a first distribution of light when the received light has a first polarity; and', 'project a second distribution of light when the received light has a second polarity., 'a diffractive element configured to2. The device of claim 1 , wherein the light projector further comprises a polarity rotator located between the light source and the diffractive element claim 1 , wherein the polarity rotator is configured to adjust a polarity of the emitted light in response to switching the light projector between a first mode and a second mode.3. The device of claim 2 , wherein the diffractive element comprises:a first diffractive optical element configured to project the first distribution of light in the first mode, wherein the received light has the first polarity; anda second diffractive optical element configured to project the second distribution of light in the second mode, wherein the received light has the second polarity.4. The device of claim 3 , wherein the diffractive element further comprises a birefringent material between the first diffractive optical element and the second diffractive optical element claim 3 , wherein:the first diffractive optical element has a first refractive index;the second diffractive optical element has a second refractive index; andthe birefringent material has the first refractive index and ...

Piezoelectric Driving Device, Driving Method Of Piezoelectric Driving Device, Robot, Electronic Component Transport Apparatus, Printer, And Projector

A piezoelectric driving device includes a piezoelectric vibrating body and a driving circuit. The piezoelectric vibrating body includes a contact which extends in a first direction and comes into contact with a driven member, a first piezoelectric element which generates bending vibration in a direction intersecting with the first direction in accordance with a first driving voltage, and a second piezoelectric element which generates longitudinal vibration in the first direction in accordance with a second driving voltage. The piezoelectric vibrating body is configured such that a resonance frequency of the longitudinal vibration is higher than a resonance frequency of the bending vibration. The driving circuit sets a driving frequency of each of the first driving voltage and the second driving voltage to be equal to or higher than the resonance frequency of the longitudinal vibration. 1. A piezoelectric driving device for driving a driven member , comprising:a piezoelectric vibrating body; anda driving circuit for electrically driving the piezoelectric vibrating body, a contact which extends in a first direction with respect to the driven member and comes into contact with the driven member,', 'a first piezoelectric element which generates bending vibration in a direction intersecting with the first direction in accordance with a first driving voltage supplied from the driving circuit, and', 'a second piezoelectric element which generates longitudinal vibration in the first direction in accordance with a second driving voltage supplied from the driving circuit,, 'wherein the piezoelectric vibrating body includes'}wherein the piezoelectric vibrating body is configured such that a resonance frequency of the longitudinal vibration is higher than a resonance frequency of the bending vibration, andwherein the driving circuit sets a driving frequency of each of the first driving voltage and the second driving voltage to be equal to or higher than the resonance frequency ...

DISPLAY AND METHOD OF CONSTRUCTING SAME

A display system and a method of forming a display are disclosed. A beam is formed from a first substantially flat substrate, a sidewall is formed from a second substantially flat substrate, and a panel is formed from a third substantially flat substrate. The beam includes a first slot, the sidewall is joined to an end of the beam and includes a second slot, and the panel includes an interior portion and first and second tabs extending outwardly from the interior portion. The first tab is inserted into the first slot and the second tab is inserted into the second tab to secure the panel to the beam and the sidewall. 1. A display system , comprising:a beam formed from a first substantially flat substrate, wherein the beam includes a first slot;a sidewall formed from a second substantially flat substrate, wherein the sidewall is joined to an end of the beam and includes a second slot; anda panel formed from a third substantially flat substrate, wherein the panel includes an interior portion and first and second tabs extending outwardly from the interior portion,wherein the first tab is inserted into the first slot and the second tab is inserted into the second tab to secure the panel to the beam and the sidewall.2. The display system of claim 1 , wherein the beam is a substantially hollow structure.3. The display system of claim 2 , wherein the first substantially flat substrate includes a plurality of lines of weakness claim 2 , and the hollow structure is formed by folding the first substantially flat substrate along the lines of weakness.4. The display system of claim 1 , wherein the beam comprises a first beam claim 1 , further including a second beam formed from a fourth substantially flat substrate claim 1 , wherein the first beam and the second beam are joined to one another.5. The display system of claim 4 , wherein the panel includes a third tab extending outwardly from the interior portion and the second beam includes third slot claim 4 , and the panel is ...

Projection apparatus, control method thereof and storage medium

A projection apparatus includes a light source that emits light, a projection unit that projects an image on a projection surface based on the light emitted by the light source, a projection control unit that controls the light source and the projection unit, a control unit that controls the projection control unit based on schedule information where an operation of the projection apparatus and a time of performing the operation are associated in advance, and a storage unit that stores a number of operations of turning on/off the light source and a total lighting time of the light source. If the control unit performs a power-off operation of the projection apparatus based on the schedule information, the control unit controls whether to turn off the light source based on the power-off operation based on the number of the operations and the total lighting time.

LIGHT EMITTING DEVICE AND PROJECTOR

In a light emitting device, a ridge section has first and second tapered sections respectively increasing in width from a center position toward first and second light exiting surfaces, and a connection area has third and fourth tapered sections respectively increasing in width from the center position toward the first and second light exiting surfaces. The outer edge angle of the connection area that specifies the third tapered section's width relative to the center line of an optical waveguide is greater than the outer edge angle of the ridge section that specifies the first tapered section's width relative to the center line. The outer edge angle of the connection area that specifies the fourth tapered section's width relative to the center line is greater than the outer edge angle of the ridge section that specifies the second tapered section's width relative to the center line. 1. A light emitting device comprising:a laminated body having an active layer capable of producing light when current is injected thereinto and a first cladding layer and a second cladding layer that sandwich the active layer; anda first electrode and a second electrode that inject current into the active layer,wherein the second cladding layer has a ridge section thicker than another portion of the second cladding layer,the active layer forms an optical waveguide that guides light,the optical waveguide has a first light exiting surface and a second light exiting surface through which the light exits,the optical waveguide extends in a direction inclined with respect to a normal to the first light exiting surface and a normal to the second light exiting surface,the laminated body has a connection area that overlaps with the ridge section when viewed in a direction in which the active layer is laminated on the first cladding layer and is connected to the second electrode,the ridge section has a first tapered section having a width that increases with distance from a center position that is ...

Mountable projector

A mountable projector for illuminating an area near the mountable projector. The mountable projector includes a body and a light source, the light source providing light. The mountable projector also includes an image filter, where the light from the light source passes through the image filter and produces an image and a lens, where the lens focuses the image produced by the light filter. The mountable projector also includes an attachment, where the attachment is configured to allow the body to be mounted to a desired surface.

Projector

A projector includes an optical engine unit including a light source unit configured to emit light, a light modulating unit configured to modulate, according to image information, the light emitted from the light source unit, and a projecting unit configured to project the light modulated by the light modulating unit, a connecting unit connectable to a bulb socket, a power supply unit configured to supply electric power received from the connecting unit to the optical engine unit, and a cooling unit arranged between the connecting unit and the optical engine unit and configured to circulate the air to cool the power supply unit and the optical engine unit.

LIGHT EMITTING DEVICE AND SUPER-LUMINESCENT DIODE HAVING LAYER WITH FIRST, SECOND AND THIRD WAVEGUIDES

A light emitting device includes a first layer that generates light by an injection current, the first layer is provided with a first optical waveguide extending from a first light emitting section disposed on a first side surface to a first light reflecting section disposed on a second side surface, a second optical waveguide extending from the first light reflecting section to a second light reflecting section disposed on a third side surface, and a third optical waveguide extending from the second light reflecting section to a second light emitting section disposed on the first side surface, and an element of the group II or the group XII is diffused in the first light reflecting section and the second light reflecting section. 1. A light emitting device comprising:a first layer that generates light by an injection current; anda second layer and a third layer that sandwich the first layer and suppress leakage of the light, a first optical waveguide extending from a first light emitting section disposed on a first side surface of the first layer to a first light reflecting section disposed on a second side surface of the first layer,', 'a second optical waveguide is extending from the first light reflecting section to a second light reflecting section disposed on a third side surface of the first layer, and', 'a third optical waveguide is extending from the second light reflecting section to a second light emitting section disposed on the first side surface, and, 'wherein the first layer is provided withan element from one of group II or group XII of the periodic table of elements is diffused in the first light reflecting section and the second light reflecting section.2. The light emitting device according to whereina surface of each of the first light reflecting section and the second light reflecting section is covered by a dielectric layer.3. The light emitting device according to whereina resin layer is formed on an opposite side of the dielectric layer to ...

WAVELENGTH CONVERTING MODULE AND LIGHT-SOURCE MODULE APPLYING THE SAME

A wavelength converting module includes a wavelength converting unit. The wavelength converting unit is at least made of a phosphor material. The wavelength converting unit is a solid rod-shaped structure, in which two opposite end surfaces of the rod-shaped wavelength converting unit are a light-entrance surface and a light-exit surface respectively. 1. A wavelength converting module , comprising:a wavelength converting unit at least made of a phosphor material, wherein the wavelength converting unit is a solid rod-shaped structure, and two opposite end surfaces of the wavelength converting unit are a light-entrance surface and a light-exit surface respectively.2. The wavelength converting module of claim 1 , wherein the wavelength converting unit is formed by sintering the phosphor material.3. The wavelength converting module of claim 1 , wherein the wavelength converting unit is a crystalline phosphor powder material claim 1 , and the crystalline phosphor powder material comprises at least one of a single crystalline phosphor bulk material and a polycrystalline phosphor bulk material.4. The wavelength converting module of claim 1 , wherein the wavelength converting unit is a phosphor composite material claim 1 , and the phosphor composite material is formed by sintering the phosphor material with a ceramic material.5. The wavelength converting module of claim 1 , wherein the light-entrance surface and the light-exit surface have different areas.6. The wavelength converting module of claim 5 , wherein a cross-sectional area of the wavelength converting unit is increasing from one of the light-entrance surface and the light-exit surface with a smaller area to another one of the light-entrance surface and the light-exit surface with a greater area.7. The wavelength converting module of claim 1 , wherein at least one of the light-entrance surface and the light-exit surface has at least one microscopic structure which is configured to reduce a reflectivity of a light ...

Projector Assembling Equipment

A projector assembling equipment includes a holder and at least one multi-axial adjusting device. The lens module or the light source module is disposed on the holder. The multi-axial adjusting device is connected with the holder to move the holder relative to a reference plane, and the reference plane is used to put the lens module or the light source module which is not held by the holder. The multi-axial adjusting device includes a three-axis adjusting mechanism, a rotary adjusting mechanism and a tilt adjusting mechanism. The three-axis adjusting mechanism is utilized to shift the holder at a first direction, a second direction and a third direction. The rotary adjusting mechanism is disposed on the three-axis adjusting mechanism to rotate the holder at a clockwise direction and a counterclockwise direction. The tilt adjusting mechanism is disposed on the three-axis adjusting mechanism to recline the holder relative to the reference plane. 1. A projector assembling equipment capable of aligning a lens module with a light source module , the projector assembling equipment comprising:a holder whereon the lens module is disposed;a fixer whereon the light source module is disposed, the fixer being located upon a reference plane; and a three-axis adjusting mechanism utilized to shift the holder at a first direction, a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other;', 'a rotary adjusting mechanism disposed on the three-axis adjusting mechanism and utilized to rotate the holder at a clockwise direction and a counterclockwise direction; and', 'a tilt adjusting mechanism disposed on the three-axis adjusting mechanism and utilized to recline the holder relative to the reference plane., 'two multi-axial adjusting devices respectively connected with the holder and the fixer and adapted to drive a relative movement between the holder and the fixer, each multi-axial adjusting ...

PROJECTOR

To improve general versatility by being capable of using a different kind of light source as well as to improve the maintainability. 1. A projector , comprising:an optical unit including an optical system including a modulator;a signal unit that sends a signal to the modulator;a light source block including a light source that emits light, a lens that allows the light emitted from the light source to enter the optical unit, and a case including the light source inside;a power source block for light source that supplies electric power to the light source;a power source unit that supplies electric power to the signal unit and the power source block for light source; andan outer casing in which the optical unit, the signal unit, the power source unit, the light source block, and the power source block for light source are arranged,the light source block replaceable with a different kind of light source block including a different kind of light source.2. The projector according to claim 1 , whereinthe power source block for light source is replaceable with a with a different kind of power source block for light source depending on the kind of light source block.3. The projector according to claim 1 , whereinthe light source block and the power source block for light source form a light source unit, andthe light source unit is replaceable with a different kind of light source unit.4. The projector according to claim 1 , further comprising:a cooling mechanism including at least one cooling fan that generates cooling air, whereinthe case includes a flow port at a position depending on the kind of light source, the flow port flowing the cooling air generated by the cooling fan inside and outside the light source block.5. The projector according to claim 4 , whereinthe flow port is formed at a position facing the cooling fan.6. The projector according to claim 4 , whereinthe cooling fan is attached to the outer casing.7. The projector according to claim 1 , whereinthe light ...

OPTOELECTRONIC SEMICONDUCTOR DEVICE HAVING DIELECTRIC LAYERS, AND METHOD FOR MANUFACTURING THE SAME

An optoelectronic semiconductor device may include a semiconductor body having a first main surface, a first dielectric layer over the first main surface, and a second dielectric layer on a side of the first dielectric layer facing away from the first main surface. The second dielectric layer is patterned to form an ordered photonic structure. The semiconductor body is suitable for emitting or receiving electromagnetic radiation through the first main surface. The first main surface is roughened, and the first dielectric layer is suitable for leveling a roughening of the first main surface. 2. The optoelectronic semiconductor device according to claim 1 , wherein the second dielectric layer has a greater refractive index than the first dielectric layer.3. The optoelectronic semiconductor device according to claim 1 , wherein the second dielectric layer has a refractive index greater than 2.4. The optoelectronic semiconductor device according to claim 1 , wherein the first dielectric layer contains silicon oxide.5. The optoelectronic semiconductor device according to claim 1 , wherein the second dielectric layer contains NbO.6. The optoelectronic semiconductor device according to claim 1 , wherein holes are patterned in a first main surface of the second dielectric layer.7. The optoelectronic semiconductor device according to claim 6 , wherein the holes extend to a second main surface of the second dielectric layer.8. The optoelectronic semiconductor device according to claim 6 , wherein a depth of the holes is smaller than a layer thickness of the second dielectric layer.9. The optoelectronic semiconductor device according to claim 1 , wherein the ordered photonic structure comprises a photonic crystal.10. The optoelectronic semiconductor device according to claim 1 , wherein the ordered photonic structure comprises a photonic quasicrystal.11. The optoelectronic semiconductor device according to claim 1 , wherein the ordered photonic structure comprises ...

Optical projection apparatus and illumination apparatus using same

An optical projection apparatus includes a light specification setting unit for setting a specification of a light, a shape setting unit for setting a shape made by the light, a position setting unit for setting a position of the shape, a size setting unit for setting a size of the shape, an optical data generation unit for generating optical data based on the specification, the shape, the position, and the size. The optical projection apparatus further includes a light drawing unit for generating light drawing data by performing a drawing process with the optical data, an optical projection unit for projecting the shape at the position with the light drawing data, and a manipulation unit for allowing a user to set one or more parameters indicating the specification, the shape, the position, and the size.

PROJECTION VIDEO DISPLAY APPARATUS

A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video. 1. A projection video display apparatus comprising:a video input unit which inputs an input video;a light source;a display element which allows incidence of light generated by the light source thereon and makes the light pass therethrough or reflect thereon;a projection optical system which projects the light from the display element as a display video; anda variable light adjusting function which changes the amount of light incident on the display element,wherein a plurality of display modes using the variable light adjusting function are prepared and one display mode of the plurality of display modes can be selected from a menu screen, andthe plurality of display modes of the display video using the variable light adjusting function includes:a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; anda second display mode ...

OPTICAL ELEMENT, LIGHTING DEVICE, AND IMAGE DISPLAY DEVICE

Provided are an optical element, a lighting device, and an image display device, with which the absorption efficiency and the luminance of the excitation light can be improved. This optical element () is equipped with: a light-emitting layer () that generates excitation light; a plasmon excitation layer () stacked on the light-emitting layer () and having a higher plasma frequency than the light-emitting frequency of the light-emitting layer (); an emission layer () that emits light by converting the surface plasmons or the light generated at the upper surface of the plasmon excitation layer () to light having a predetermined emission angle; and a metal layer () stacked on the underside of the light-emitting layer (). 1. An optical element comprising:a light-emitting layer generating an exciton;a plasmon excitation layer stacked on an upper side of the light-emitting layer and having a plasma frequency higher than a light emission frequency of the light-emitting layer;an emission layer converting light or a surface plasmon generated on an upper surface of the plasmon excitation layer to light having a predetermined emission angle and emitting the light; anda metal layer stacked on an underside of the light-emitting layer.2. The optical element according to claim 1 , further comprising a dielectric spacer layer between the light-emitting layer and the metal layer.3. The optical element according to claim 1 , further comprising a dielectric layer stacked on at least one of surfaces of the plasmon excitation layer.410-. (canceled)11. The optical element according to claim 1 ,wherein a distance between a surface of the plasmon excitation layer on the light-emitting layer side and a surface of the light-emitting layer on the plasmon excitation layer side is smaller than an effective interaction distance of a surface plasmon excited on a surface of the plasmon excitation layer on the light-emitting layer side.12. The optical element according to claim 11 , wherein the ...

METHOD FOR MANUFACTURING LIGHT EMITTING APPARATUS, LIGHT EMITTING APPARATUS, AND PROJECTOR

A method for manufacturing a light emitting apparatus according to an aspect of the present disclosure includes forming a light emitting section on a substrate, the light emitting section including a group of columnar sections formed of a plurality of columnar sections each including a light emitting layer, forming a first insulating layer on the substrate so as to cover the light emitting section, etching the tip of a protrusion-shaped section that contains the same substance as the substance of which the light emitting section is made and protrudes beyond the first insulating layer, forming a second insulating layer on the first insulating layer, and forming an electrode to be electrically coupled to the light emitting section on the second insulating layer. 1. A method for manufacturing a light emitting apparatus , the method comprising:forming a light emitting section on a substrate, the light emitting section including a group of columnar sections formed of a plurality of columnar sections each including a light emitting layer;forming a first insulating layer on the substrate so as to cover the light emitting section;etching a tip of a protrusion-shaped section that contains the same substance as a substance of which the light emitting section is made and protrudes beyond the first insulating layer;forming a second insulating layer on the first insulating layer; andforming an electrode to be electrically coupled to the light emitting section on the second insulating layer.2. The method for manufacturing a light emitting apparatus according to claim 1 ,wherein the first insulating layer and the second insulating layer are made of the same material.3. The method for manufacturing a light emitting apparatus according to claim 1 ,wherein the first insulating layer and the second insulating layer are made of different material.4. The method for manufacturing a light emitting apparatus according to claim 3 ,wherein a dielectric constant of the material of which the ...

WAVELENGTH CONVERSION DEVICE, LIGHT SOURCE DEVICE, LIGHTING APPARATUS, AND PROJECTION IMAGE DISPLAY APPARATUS

A wavelength conversion device includes: a substrate; and a phosphor layer on the substrate. The phosphor layer includes: a base material; phosphor particles which emit fluorescent light when excited by excitation light; and light transmissive particles each having a grain size that is within ±30% of a grain size of each of the phosphor particles, and a refractive index that is within ±7% of a refractive index of the base material. 1. A wavelength conversion device , comprising:a substrate; anda phosphor layer on the substrate,wherein the phosphor layer includes;a base material;phosphor particles which emit fluorescent light when excited by excitation light; andlight transmissive particles each having a grain size that is within ±30% of a grain size of each of the phosphor particles, and a refractive index that is within ±7% of a refractive index of the base material.2. The wavelength conversion device according to claim 1 ,wherein the phosphor layer contains the phosphor particles and the light transmissive particles in a volume of at least 45% relative to the base material.3. The wavelength conversion device according to claim 1 ,wherein the phosphor layer contains the light transmissive particles in a volume of at least 20% relative to the phosphor particles.4. The wavelength conversion device according to claim 1 ,wherein the grain size of each of the phosphor particles and the grain size of each of the light transmissive particles are each at least 5 μm and at most 20 μm.5. A light source device claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the wavelength conversion device according to ; and'}an excitation light source which emits the excitation light,wherein the light source device emits white light including the excitation light and the fluorescent light emitted by the phosphor particles.6. A lighting apparatus claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00005', 'claim 5'}, 'the light source device according to ; and'}an ...

PROJECTION VIDEO DISPLAY APPARATUS WITH VARIABLE LIGHT ADJUSTMENT FOR MULTI-SCREEN PROJECTION MODE

A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video. 1. A projection video display apparatus with variable light adjustment for multi-screen projection mode , comprising:a video input interface configured to input an input video;a light source;a display panel configured to allow incidence of light generated by the light source thereon and to make the light pass therethrough or reflect thereon;a projection optical system configured to project the light from the display panel as a display video; anda controller configured to execute variable light adjusting control to change the amount of light to be incident on the display panel by controlling a variable iris or the light source,wherein a plurality of display modes controlled by the controller are prepared and one display mode of the plurality of display modes can be selected from a menu screen, a first display mode which corresponds to the multi-screen projection mode, where the input video is displayed while changing an amount of light to be incident on the display panel in accordance with light adjusting control information, which is input from external ...

Projector light bulb

A display system that includes a projector light bulb. The system includes a light fixture with a conventional light bulb socket. A projector light bulb is provided with a socket adapter for mating electrically with the light bulb socket. A projector such as a pico projector is fit into the socket adapter or to mate with this adapter to be powered by the light bulb socket via the adapter. In lamp-type implementations, the projector is used to project onto a lamp shade-shaped rear projection screen or through a translucent shade and also upon surfaces of the ceiling or objects above the projector light bulb. A light conditioning or directing assembly may be provided that directs a portion of the projected light onto the projection screen (or shade) and another portion up onto the ceiling so as to concurrently focus on two or more surfaces at two or more focal distances.

Projector with field lens

A projector having a curved field lens and a displaced light modulating display. The system includes at least one light source configured to generate colored light beams, and a prism routing the light beams to the display. The curved field lens is coupled to a face of the prism, and the prism and curved field lens together decenter the light beam from the prism face and uniformly illuminate the display. A center of the display is displaced from the projection lens optical axis. The decentered light beam and the displaced display together generate a favorable shifted boresight of the created image. Dimensions of components of the projector are a function of a curvature of the curved field lens. The greater the curvature of the curved field lens, the smaller the dimensions of the components and the overall projector. The projector may be used in eyewear.

Wavelength-converting device and projection apparatus

A wavelength-converting device has a light incident side. The wavelength-converting device includes an inner annular portion and an annular portion. The annular portion is connected to an outer edge of the inner annular portion. The annular portion includes a wavelength-converting portion, a first heat-conductive bonding medium, a reflective layer, and a wavelength-converting layer. A groove is annularly disposed in the wavelength-converting portion, and the groove is recessed from the light incident side of the wavelength-converting device. The first heat-conductive bonding medium is disposed in the groove. The reflective layer is disposed on the first heat-conductive bonding medium. The wavelength-converting layer is disposed on the reflective layer and has a light receiving surface. A projection apparatus is also provided.

Light source apparatus and projection display apparatus

To implement a light source apparatus that can efficiently excite a fluorescent substance and has favorable color reproducibility. There is provided a light source apparatus including: a first light source configured to output light having a first wavelength λ b1 included in a first wavelength region; a second light source configured to output light having a second wavelength λ b2 that is included in the first wavelength region, and is shorter than the first wavelength; a fluorescent substance ( 133 ) configured to be excited by the light having the first wavelength and the light having the second wavelength to emit light λ y in a second wavelength region; and a wavelength selection member ( 140 ) provided to face the fluorescent substance ( 133 ), and configured to reflect the light having the second wavelength λ b2 among light output from the fluorescent substance ( 133 ).

LIGHT PROJECTING METHOD AND DEVICE

A light projecting system comprises: a waveguide comprising a first surface, a second surface, and a fourth surface, at least one of the first surface or the second surface comprising a first plurality of grating structures; a light source coupling light into the waveguide to form an in-coupled light beam, wherein: each of the first grating structures is configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide, and a remainder beam of the in-coupled light beam undergoing the total internal reflection being coupled out of the waveguide after the out-coupling at each of the first grating structures; a detector configured to receive and measure the remainder beam; and a processor coupled to the detector and configured to determine if a dangerous condition occurs based on the measured remainder beam. 1. A light projecting system , comprising:a waveguide comprising a first surface, a second surface, and a fourth surface, at least one of the first surface or the second surface comprising a first plurality of grating structures; the waveguide is configured to guide the in-coupled light beam to undergo total internal reflection between the first surface and the second surface until reaching the fourth surface, and', 'each of the first grating structures is configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide, the portion of the in-coupled light beam coupled out of the waveguide being an out-coupled light beam, and a remainder beam of the in-coupled light beam undergoing the total internal reflection being coupled out of the waveguide from the fourth surface after the out-coupling at each of the first grating structures; and, 'a light source coupling light into the waveguide to form an in-coupled light beam, whereina detector configured to receive and measure the remainder beam, wherein the light source or a ...

DISPLAY DEVICE

A display device is configured to show an image inside a vehicle, and mounted inside the vehicle as an internal component. The display device has a light source configured to emit light, and a light guide element configured to guide incident light from the light source. The light guide element includes an emission surface configured to output incident light, and a plurality of light focusing portions configured to change the path of the incident light toward the emission surface, causing the light output to converge toward a convergence point or convergence line outside the light guide element or to radiate from a convergence point or convergence line outside the light guide element and thereby form an image outside the light guide element. 1. A display device configured to show an image inside a vehicle , and mounted inside the vehicle as an internal component , the display device comprising:a light source configured to emit light; anda light guide element configured to guide incident light from the light source, an emission surface configured to output incident light, and', 'a plurality of light focusing portions configured to change the path of the incident light toward the emission surface, causing the light output to converge toward a convergence point or convergence line outside the light guide element or to radiate from a convergence point or convergence line outside the light guide element and thereby form an image outside the light guide element., 'wherein the light guide element comprises2. The display device according to claim 1 ,wherein the light focusing portions are configured to form an image on a virtual plane oblique or orthogonal to the emission surface.3. The display device according to claim 1 ,wherein the light guide element is arranged at the upper part of a dashboard with the emission surface oriented upward, andwherein the light focusing portions are configured to form an image above the dashboard.4. The display device according to claim 1 , ...

IMAGE DISPLAY DEVICE

An image display device includes a half mirror, an image output device configured to output a light beam to one face of the half mirror, and a retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror. The retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer. The height of the prismatic retroreflective elements is 10 μm or more and 1,000 μm or less. The tilt angle of the optical axis of the prismatic retroreflective elements is zero degree. 1. An image display device comprising:a half mirror;an image output device configured to output a light beam to one face of the half mirror; anda retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror, whereinthe retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer,a height of the prismatic retroreflective elements is 10 μm or more and 1,000 μm or less, anda tilt angle of an optical axis of the prismatic retroreflective elements is zero degree.2. The image display device according to claim 1 , wherein the retroreflective member is a single layer.3. The image display device according to claim 1 , wherein the prismatic retroreflective elements are triangular pyramid retroreflective elements or full cube corner retroreflective elements.4. The image display device according to claim 1 , wherein the prismatic retroreflective elements are mirror retroreflective elements.5. The image display device according to claim 1 , wherein a refractive index of a transparent material included in the prismatic retroreflective elements is 1.3 or more ...

OPTICAL SYSTEM WITH COMPACT COLLIMATING IMAGE PROJECTOR

An optical system () includes an image-collimating prism () having external surfaces which are associated with: a polarized source; reflective-display device (); at least one light-wave collimating component () and a light-wave exit surface (), respectively. A polarization-selective beam splitter configuration () is deployed within the prism () on a plane oblique to the light-wave entrance surface (). The reflective-display device is illuminated by light reflected from the beam splitter configuration (), and generates rotation of the polarization corresponding to bright regions of the image. An image from the reflective-display device () is selectively transmitted by the polarization-selective beam splitter configuration (), is collimated by the collimating component (), reflected from the polarization-selective beam splitter configuration () and is projected through the exit surface (). In some implementations, an additional polarizer located at or near the exit surface helps to optimize extinction of unwanted illumination rays. 2. The optical system of claim 1 , wherein said light-wave entrance surface and a light-wave exit surface of said prism are parallel.3. The optical system of claim 1 , wherein at least one angle between adjacent surfaces of said prism is non-orthogonal.4. The optical system of claim 1 , wherein said prism is a cuboid prism.5. The optical system of claim 1 , wherein said prism is a square cuboid prism.6. The optical system of claim 1 , wherein said polarization-selective beam splitter configuration is a wire grid beam splitter.7. The optical system of claim 1 , wherein said polarization-selective beam splitter configuration is a compound beam splitter configuration comprising:(a) a first beam-splitter element closest to said source of polarized light;(b) an absorptive polarizer; and(c) a second beam-splitter element closest to said light-wave collimating component.8. The optical system of claim 7 , wherein said first beam-splitter element is ...

IMAGE PROJECTION APPARATUS

[Object] To provide an image projection apparatus that is able to efficiently cool an inside of a housing. 1. An image projection apparatus that is a short focus projector including a short focus lens as a projection lens that projects an image on a projection face , the image projection apparatus comprising:an optical system unit including an optical system component including the projection lens;an air intake port that is provided on a rear face of a housing containing the optical system unit and through which air is caused to flow into an inside of the housing;an air discharge port that is provided on a front face of the housing and through which air inside the housing is discharged; andone or more cooling fans that are provided to be closer to a rear face side than a heat generation component that generates heat among the optical system components, in the inside of the housing.2. The image projection apparatus according to claim 1 , wherein the cooling fan is provided to prevent an air discharge flow path inside the housing from being blocked.3. The image projection apparatus according to claim 1 , whereinthe cooling fan is a sirocco fan, andthe sirocco fan is provided to allow an air intake face to be in substantially parallel with an air discharge flow path going from the air intake port toward the air discharge port.4. The image projection apparatus according to claim 1 , whereinregarding the optical system unit, a polarization conversion element and a liquid crystal display element, among the heat generation components of the optical system unit, are provided on a rear side of the housing; andthe cooling fan is provided between the polarization conversion element and the liquid crystal display element, and the air intake port.5. The image projection apparatus according to claim 1 , whereinthe housing has a shape in which a length in a width direction in which side faces face each other is greater than a length in a depth direction in which the front face ...

PROJECTION SYSTEM, LIGHT SOURCE SYSTEM AND LIGHT SOURCE ASSEMBLY

A projection system, a light source system and a light source assembly. The light source system includes an excitation light source, a wavelength conversion device, a filter device, a drive device and a first optical assembly. The wavelength conversion device includes at least one wavelength conversion region; the filter device is fixed relative to the wavelength conversion device and includes at least one first filter region. The drive device drives the wavelength conversion device and the filter device, so that the wavelength conversion region and the first filter region synchronously move, and the wavelength conversion region is periodically disposed on a propagation path of excitation light, to wavelength-convert the excitation light into the converted light. The first optical assembly guides the converted light into the first filter region; and the first filter region filters the converted light to improve its color purity. 1. A light source system comprising:an excitation light source for generating an excitation light;a wavelength conversion device including at least one wavelength conversion region;a filter device fixed relative to the wavelength conversion device and including at least one first filter region;a drive device for driving the wavelength conversion device and the filter device, wherein the wavelength conversion region and the first filter region move synchronously, and wherein the wavelength conversion region is periodically disposed on a propagation path of excitation light and wavelength-converts the excitation light into a converted light; anda first optical assembly for guiding the converted light onto the first filter region, wherein the first filter region filters the converted light to increase its color purity;wherein the wavelength conversion device and the filter device are two ring shaped structures that are coaxially fixed to each other; andwherein the first optical assembly is disposed so that a light spot formed on the wavelength ...

Projection system and control method of driving current therefor

A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.

MULTI-COLOUR ILLUMINATION APPARATUS

A light engine is provided for a projection system, comprising a color wheel having a plurality of color phosphor portions; at least two light sources for illuminating the wheel at different locations for generating at least two time-sequenced beams of red, green and blue light, wherein the output beams are highly synchronized and exhibit substantially similar colorimetry, including spectrum and balance of red, green and blue light; and a digital micromirror device for modulating the time-sequenced beams of red, green and blue light to create an image. In another aspect, a light engine is provided for a tiled projection system having at least two projectors, comprising a color wheel having a plurality of color phosphor portions; a light source for generating a beam of light; a beam splitter for splitting the beam of light into at least two highly correlated beams to illuminate the wheel at different locations for generating at least two time-sequenced beams of identical red, green and blue light; and a digital micromirror device in each of the projectors for modulating the highly correlated beams to create a tiled image 1. A multi-color illumination apparatus for a projection system , comprising:a phosphor color wheel having a plurality of color phosphor portions;at least two light sources for illuminating said wheel at different locations for generating at least two time-sequenced beams of red, green and blue light, wherein said beams are highly synchronized and exhibit substantially similar colorimetry, including spectrum and balance of red, green and blue light; anda spatial light modulator for modulating the time-sequenced beams of red, green and blue light to create an image.2. The multi-color illumination apparatus of claim 1 , wherein said different locations are separated from one another along an annulus.3. The multi-color illumination apparatus of claim 1 , wherein said color phosphor portions comprise a first annulus of said phosphor color wheel for ...

METHOD AND APPARATUS FOR CORRECTING COLOR CONVERGENCE ERROR

Provided are a method and an apparatus for correcting a color convergence error. The method includes: in a dark room environment, collecting a projection light point on a projection screen projected by a projection system, to obtain a projection image; adjusting the test pattern, so that a first projection light point corresponding to the white point of a first coordinate on the test pattern after being projected by a first color light source is located in a center of the projection image; obtaining a second and/or a third projection light points corresponding to the white point of the first coordinate after being projected by a second and/or a third color light sources from the projection image; and adjusting an assembly parameter of the projection system according to a position of the second and/or the third projection light points and a position of the first projection light point. 1. A method for correcting a color convergence error , comprising:in a dark room environment, collecting a projection light point on a projection screen projected by a projection system, to obtain a projection image; wherein the projection system projects a test pattern containing an array of a white point by using RGB three-color light source;adjusting the test pattern, so that a first projection light point corresponding to the white point of a first coordinate on the test pattern after being projected by a first color light source is located in a center of the projection image;obtaining a second projection light point and/or a third projection light point corresponding to the white point of the first coordinate after being projected by a second color light source and/or a third color light source from the projection image; andadjusting an assembly parameter of the projection system according to a position of the second projection light point and/or the third projection light point and a position of the first projection light point.2. (canceled)3. The method according to claim 1 , ...

LENS SHIFT MECHANISM AND PROJECTION DISPLAY APPARATUS

A lens shift mechanism of one embodiment of the present disclosure includes: a projection lens; a cylindrical housing that holds the projection lens; and an operating unit that moves the cylindrical housing in one axial direction perpendicular to an optical axis of the projection lens. The operating unit includes a pair of a main shaft and a countershaft extending in the one axial direction and disposed to be opposed to each other across the cylindrical housing, and a pair of elastic bodies provided respectively for the main shaft and the countershaft. The pair of elastic bodies are parallel to the one axial direction, and have biasing directions opposite to each other. 1. A lens shift mechanism comprising:a projection lens;a cylindrical housing that holds the projection lens; andan operating unit that moves the cylindrical housing in one axial direction perpendicular to an optical axis of the projection lens, a pair of a main shaft and a countershaft extending in the one axial direction and disposed to be opposed to each other across the cylindrical housing, and', 'a pair of elastic bodies provided respectively for the main shaft and the countershaft, the pair of elastic bodies being parallel to the one axial direction and having biasing directions opposite to each other., 'wherein the operating unit includes'}2. The lens shift mechanism according to claim 1 , wherein the pair of elastic bodies have biasing forces different from each other.3. The lens shift mechanism according to claim 1 , whereinthe pair of elastic bodies comprise a first elastic body and a second elastic body, anda minimum biasing force of the first elastic body is greater than a sum of a maximum biasing force of the second elastic body and gravitational force applied to a holding member that includes the projection lens and the cylindrical housing and holds the projection lens.4. The lens shift mechanism according to claim 1 , wherein a straight line coupling a first biasing point and a second ...

Imaging optical system, image projection apparatus, and camera system

An imaging optical system includes, in order from an enlargement conjugate side to a reduction conjugate side, a first mirror as a convex mirror, a first lens unit, a second mirror as a concave mirror, a third mirror as a concave mirror, and a second lens unit. The imaging optical system is configured to form a first intermediate real image and a second intermediate real image located at a position different from that of the first intermediate real image between the first mirror and a reduction side conjugate plane.

PROJECTOR AND OPERATION CONTROL METHOD

A projector includes a light source, a light modulation device configured to modulate a light output from the light source, a projection optical device configured to project the light modulated by the light modulation device, a casing containing at least a part of the light modulation device and having an interior filled with a cooling liquid, a circulating device configured to circulate the cooling liquid at least to a light exiting side of a modulation part in the light modulation device, and a control device configured to control an operation of the circulating device. The control device changes an operation level of the circulating device. 1. A projector comprising:a light source;a light modulation device configured to modulate a light emitted from the light source;a projection optical device configured to project the light modulated by the light modulation device;a casing containing at least a part of the light modulation device and having an interior filled with a cooling liquid;a circulating device configured to circulate the cooling liquid at least to a light exiting side of a modulation part in the light modulation device; anda control device configured to control an operation of the circulating device,wherein the control device changes an operation level of the circulating device.2. The projector according to claim 1 , a first control of controlling the operation of the circulating device at a first operation level and', 'a second control of controlling the operation of the circulating device at a second operation level, and, 'wherein the control device alternately executes'}wherein a velocity of the cooling liquid circulating on the light exiting side of the modulation part when the circulating device is controlled at the second operation level is higher than a velocity of the cooling liquid circulating on the light exiting side of the modulation part when the circulating device is controlled at the first operation level.3. The projector according to ...

ILLUMINATION SYSTEM AND PROJECTION DEVICE

An illumination system includes an excitation light source and a wavelength conversion element. The excitation light source provides an excitation beam. The wavelength conversion element has a wavelength conversion region, a reflective region, and a light transmissive region. The wavelength conversion region and the reflective region form an annular region. The light transmissive region is surrounded by the annular region, wherein the excitation beam passes through the light transmissive region of the wavelength conversion element. The illumination system of the disclosure is small in size and achieves favorable optical efficiency. A projection device including the illumination system is also provided. 1. An illumination system , comprising an excitation light source and a wavelength conversion element , whereinthe excitation light source provides an excitation beam, andthe wavelength conversion element comprises a wavelength conversion region, a reflective region, and a light transmissive region, wherein the wavelength conversion region and the reflective region form an annular region, and the light transmissive region is surrounded by the annular region, wherein the excitation beam passes through the light transmissive region of the wavelength conversion element.2. The illumination system according to claim 1 , further comprising a reflective cover claim 1 , wherein the reflective cover has a focal point claim 1 , the wavelength conversion region and the reflective region of the wavelength conversion element sequentially enter an irradiation region claim 1 , the focal point locates in the irradiation region claim 1 , and an orthographic projection area of the reflective cover on the wavelength conversion element covers at least a part of the light transmissive region of the wavelength conversion element.3. The illumination system according to claim 2 , further comprising a light splitting/combining optics group claim 2 , wherein the light splitting/combining ...

PROJECTOR AND METHOD FOR CONTROLLING PROJECTOR

A projector includes: an image interface unit; a projection unit which projects a projection image based on image information, onto a screen; a setting unit which sets an aspect ratio of the projection image; a projection control unit which causes the projection unit to project the projection image according to the aspect ratio set by the setting unit; and an EDID processing unit which causes first information about an aspect ratio of the image information to be transmitted to a PC. If the setting unit changes the aspect ratio of the projection image from a first aspect ratio to a second aspect ratio, the EDID processing unit causes the first information based on the second aspect ratio to be transmitted to the PC. 1. A projector comprising:a communication unit which communicates with an external device;a projection unit which projects, on a projection surface, a projection image based on image information transmitted to the projector from the external device via the communication unit;a setting unit which sets an aspect ratio of the projection image;a projection control unit which causes the projection unit to project the projection image according to the aspect ratio set by the setting unit; anda control unit which causes the communication unit to transmit, to the external device, first information about an aspect ratio of the image information transmitted from the external device,wherein if the setting unit changes the aspect ratio of the projection image from a first aspect ratio to a second aspect ratio, the control unit causes the communication unit to transmit the first information based on the second aspect ratio, to the external device.2. The projector according to claim 1 , wherein the first information includes the aspect ratio of the image information transmitted from the external device.3. The projector according to claim 1 , further comprising an operation unit which accepts an operation claim 1 ,wherein the setting unit sets the aspect ratio of the ...

PROJECTION VIDEO DISPLAY APPARATUS WITH VARIABLE LIGHT ADJUSTMENT FOR MULTI-SCREEN PROJECTION MODE

A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video. 1. A projection video display apparatus with variable light adjustment for multi-screen projection mode , comprising:a video input interface configured to input an input video;a light source;a display panel configured to allow incidence of light generated by the light source thereon and to make the light pass therethrough or reflect thereon;a projection optical system configured to project the light from the display panel as a display video; anda controller configured to execute variable light adjusting control to change the amount of light to be incident on the display panel by controlling a variable iris or the light source,wherein a plurality of display modes controlled by the controller are prepared and one display mode of the plurality of display modes can be selected from a menu screen, a first display mode which corresponds to the multi-screen projection mode, where the input video is displayed while changing an amount of light to be incident on the display panel in accordance with light adjusting control information, which is input from external ...

Optic and Assembly for Reduced Reflections

An optic providing reduction in secondary or ghost images includes a beam splitter, a reflective surface, and at least one baffle therebetween. A transmissive surface may be located between the beam splitter and the reflective surface. The baffle is positioned to intercept internally reflected ghost rays while being substantially parallel to outside light rays along a line of sight of the viewer, permitting use in see-through optics. The baffles may be formed of diffusing structures, light absorbing material, and combinations of both. Baffles intercept and scatter or absorb ghost rays to the exclusion of projected image rays that provide a desired projected image which are internally reflected through the optic. An assembly including such optic integrated with a wearable vision system, such as a head-mounted display, is also disclosed for near-eye application. 1. An optic , comprising:a beam splitter within said optic configured to (i) receive projected light rays corresponding to a desired projected image to be presented to a user for viewing and a ghost image that obfuscates said desired projected image, and (ii) selectively transmit at least a portion of said projected light rays;a reflective surface within said optic configured to receive said projected light rays transmitted from said beam splitter and reflect said projected light rays inwardly to said beam splitter; andat least one baffle disposed within said optic between said beam splitter and said reflective surface, positioned to intercept said projected light rays corresponding to said ghost image from reflection by said reflective surface to said beam splitter.2. The optic as recited in claim 1 , wherein said optic is a see-through optic.3. The optic as recited in claim 1 , wherein said at least one baffle is spaced apart a predetermined distance from said beam splitter and said reflective surface.4. The optic as recited in claim 3 , wherein said predetermined distance between said at least one baffle ...

Projection apparatus

A projection apparatus includes a solid-state light source module, a high-voltage power source, an image-forming-light generating module, an insulation ring and a projection lens module. The solid-state light source module has a solid-state light source and a first metal casing. The solid-state light source is disposed in the first metal casing. The high-voltage power source is electrically connected to the solid-state light source for providing electrical power to drive the solid-state light source to emit light. The image-forming-light generating module has a second metal casing. The insulation ring is connected to the first metal casing and the second metal casing for insulating the first metal casing from the second metal casing. The projection lens module is connected to the image-forming-light generating module for projecting an image generated by light emitted from the solid-state light source after the light enters the image-forming-light generating module through the insulation ring.

Light conversion device with enhanced inorganic binder

A light conversion device comprising a layer formed from an inorganic binder, the inorganic binder comprising: from about 25 to about 80 wt % of a filler; from about 20 to about 75 wt % of an inorganic adhesive; and from about 0.5 to about 5 wt % of a dispersant. The inorganic binders are capable of withstanding high temperatures, have a high light transmittance, have a high tensile-shear strength, can be applied by a flexible coating process, and have a low curing temperature. Such inorganic binders could advantageously be employed in a variety of applications, such light tunnels (300), projection display systems, and optical light conversion devices, such as phosphor wheels (100), used in such systems.

OPTICAL ELEMENT AND DISPLAY APPARATUS

[Object] To provide an optical element and a display apparatus capable of reducing a waveguide loss and achieving laser oscillation suppression and a high output. [Solving Means] An optical element according to the present technology includes a substrate, a first end which is a light emission end, and a second end provided on an opposite side to the first end, the optical element including a first electrode layer, a first semiconductor layer, a second semiconductor layer, an active layer, and a second electrode layer. The first electrode layer has a stripe form extended from the second end toward the first end. A waveguide structure included in the first conductivity type layer, the active layer, and second conductivity type layer includes a first waveguide and a second waveguide, and the second waveguide has a tapered structure that makes a beam spot of light incident from the first waveguide smaller. The optical element includes a reflection surface that is formed by an excavation structure provided from the first semiconductor layer to the active layer on at least one of the first end and the second end, and reflects light incident from the first waveguide or the second waveguide. 1. An optical element including a substrate , a first end which is a light emission end , and a second end provided on an opposite side to the first end , the optical element comprising:a first electrode layer having a stripe form, the first electrode layer being extended from the second end toward the first end;a first semiconductor layer that has a first conductivity type and includes a current injection area formed by the first electrode layer and a non-current injection area;a second semiconductor layer that has a second conductivity type and is provided on the substrate;an active layer that is provided between the first semiconductor layer and the second semiconductor layer; anda second electrode layer that is in contact with the substrate or the second semiconductor layer, wherein ...

PROJECTOR AND LIGHT DETECTION CIRCUIT AND LIGHT DETECTION METHOD THEREOF

A light detection circuit for a projector is provided. The light detection circuit includes: a light transistor for receiving and sensing reflected light from a side of a color wheel driving motor of the projector, wherein the side of the color wheel driving motor includes a dark region and a bright region; a bias unit coupled to the light transistor for providing a bias voltage; an operation amplifier including a positive input coupled to the bias unit, a negative input coupled to the light transistor and the bias unit, and an output, the base unit providing the bias voltage to the positive input; and a feedback resistor coupled between the negative input of the operation amplifier and the output, wherein, a resistance of the feedback resistor causes the light transistor to be operated in a linear region. 1. A light detection circuit for a projector , comprising:a light transistor for receiving and sensing a reflected light from a side of a color wheel driving motor of the projector, wherein the side of the color wheel driving motor comprises a dark region and a bright region;a bias unit coupled to the light transistor for providing a bias voltage;an operation amplifier coupled to the light transistor and the bias unit, wherein the operation amplifier comprises a positive input, a negative input and an output, the positive input of the operation amplifier is coupled to the bias unit, the negative input of the operation amplifier is coupled to the light transistor and the bias unit, the bias unit providing the bias voltage to the positive input of the operation amplifier; anda feedback resistor coupled between the negative input of the operation amplifier and the output, wherein, a resistance of the feedback resistor causes the light transistor to be operated in a linear region.2. The light detection circuit according to claim 1 , wherein claim 1 , the bias unit comprises a first resistor and a first capacitor respectively coupled to the operation amplifier claim 1 ...

Adaptive Method for a Light Source

A method includes selecting a candidate image property data set and a corresponding candidate light source parameter set, obtaining multiple adjusted light source parameter sets based on the candidate light source parameter set, projecting light onto an article and capturing images in multiple projecting modes, one by one, according to the adjusted light source parameter sets, obtaining multiple adjusted image property data sets each from the images captured in one projecting mode, and selecting a target image property data set from the adjusted image property data sets and a corresponding target light source parameter set. 1. An adaptive method for a light source that is used for inspecting an article , the adaptive method to be implemented using an automatic adapting system that includes a storage device , a light source , an image capturing device and a processing unit , the light source being configured to project light onto the article in a plurality of initial projecting modes , the storage device storing a plurality of initial light source parameter sets corresponding respectively to the initial projecting modes , and a plurality of initial image property data sets each being obtained by illuminating the article in a respective one of the initial projecting modes and each including a plurality of property value sets that are related respectively to a plurality of image properties , the adaptive method comprising steps of:selecting, by the processing unit, a candidate image property data set from the initial image property data sets according to a screening condition, the screening condition being related to the article and to at least one of the image properties;selecting, by the processing unit, a candidate light source parameter set that corresponds to the candidate image property data set from the initial light source parameter sets;obtaining, by the processing unit, a plurality of adjusted light source parameter sets based on the candidate light source ...

COMPOSITE-OPTICAL-SYSTEM UNIT AND PROJECTOR

A composite-optical-system unit () includes a plurality of polarization beam splitters (A, B, and C), a pair of spacer plates ( or the like), and an optical element (). Each of the pair of spacer plates () is arranged between the first polarization beam splitter (A) and the second polarization beam splitter (C) of the plurality of polarization beam splitters such that a first contact surface is fixed on an emission-side surface () of the first polarization beam splitter (A) by surface contact, and a second contact surface is fixed on an incident-side surface () of the second polarization beam splitter (C) by surface contact. The optical element () is arranged between the pair of spacer plates (). 1. A composite-optical-system unit , comprising:a plurality of polarization beam splitters, each of the plurality of polarization beam splitters including an incident-side surface that light enters and an emission-side surface from which light is emitted;a pair of spacer plates, each of the pair of spacer plates including a first contact surface and a second contact surface provided on a side opposite to the first contact surface, each of the pair of spacer plates being arranged between a first polarization beam splitter and a second polarization beam splitter of the plurality of polarization beam splitters such that the first contact surface is fixed on the emission-side surface of the first polarization beam splitter by surface contact, and the second contact surface is fixed on the incident-side surface of the second polarization beam splitter by surface contact; andan optical element arranged between the pair of spacer plates.2. The composite-optical-system unit according to claim 1 , whereineach of the pair of spacer plates includes glass.3. The composite-optical-system unit according to claim 1 , whereineach of the pair of spacer plates includes a principal surface orthogonal to a thickness direction of each of the pair of spacer plates that is provided to have a ...

DISPLAY DEVICE AND METHOD FOR CONTROLLING DISPLAY DEVICE

A projector includes: a projection unit; a detection light irradiation unit which radiates detection light onto a detection area which is set corresponding to a display area of the projection unit; an image pickup unit which receives reflected light of irradiation detection light reflected in the detection area; and a control unit which carries out detection of an operation of a non-light-emitting pointing element and detection of an obstacle blocking the detection light, and causes the projection unit to display information about the obstacle. 1. A display device comprising:a display unit which displays an image;a light radiation unit which radiates detection light onto a detection area which is set corresponding to a display area where the display unit displays the image;a light receiving unit which receives reflected light of the detection light reflected in the detection area; anda control unit which carries out detection of an operation of a pointing element in the detection area and detection of an obstacle blocking the detection light, based on a light reception state of the light receiving unit, and causes the display unit to display information about the obstacle.2. The display device according to claim 1 , whereinthe control unit causes the display unit to display a position of the obstacle in the display area.3. The display device according to claim 1 , whereinthe control unit specifies a detection-hindered area where irradiation with the detection light is hindered by the obstacle in the detection area, and causes the display unit to display the detection-hindered area.4. The display device according to claim 3 , whereinthe control unit causes the display unit to display an image showing the detection-hindered area and an image showing a position of the obstacle in the detection area.5. The display device according to claim 3 , whereinthe control unit causes the display unit to display a setting request which requests a setting about whether to disable ...

Projector

A projector includes a projection section, a light transmissive member, an illuminator, a diffusion member, and an enclosure, and the enclosure is hung via a support member that supports the enclosure in a plurality of directions.

PROJECTOR

A projector includes an illumination system that outputs illumination light containing white light, which is visible light, and infrared light, an image formation section that forms image light from the illumination light, a projection system that projects the image light on a projection surface and radiates the infrared light onto the projection surface, and a detection section that detects a pointing element based on reflected light formed of the radiated infrared light. The image formation section includes a light-exiting-side polarizer that transmits the visible light in such a way that the light-exiting-side polarizer transmits light formed of one polarization component and blocks light formed of another polarization component, and the light-exiting-side polarizer transmits the infrared light in such a way that the light-exiting-side polarizer transmits the two polarization components of the infrared light. 1. A projector comprising:an illumination system that outputs illumination light containing visible light and infrared light;an image formation section that forms image light from the illumination light;a projection system that projects the image light on a projection surface and radiates the infrared light onto the projection surface; anda detection section that detects a pointing element with which an instruction is issued on the projection surface based on reflected light formed of the radiated infrared light,wherein the image formation section includes a liquid crystal display device that adjusts a polarization direction of the illumination light on a pixel basis and a first polarizer that is disposed on a light exiting side of the liquid crystal display device and transmits the illumination light outputted from the liquid crystal display device in accordance with the polarization direction of the outputted illumination light, andthe first polarizer transmits the visible light in such a way that the first polarizer transmits light formed of a first ...

Light Emitting Device And Projector

There is provided a light emitting device including: a substrate; a laminated structure provided on the substrate and having a plurality of columnar portions, in which the columnar portion includes an n-type first semiconductor layer, a p-type second semiconductor layer, a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, and a third semiconductor layer having a band gap larger than that of the light emitting layer, and the third semiconductor layer includes a first part provided between the light emitting layer and the second semiconductor layer, and a second part that is in contact with a side surface of the light emitting layer. 1. A light emitting device comprising:a substrate;a laminated structure provided on the substrate and having a plurality of columnar portions, wherein an n-type first semiconductor layer,', 'a p-type second semiconductor layer,', 'a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, and', 'a third semiconductor layer having a band gap larger than that of the light emitting layer, and, 'the columnar portion includes'} a first part provided between the light emitting layer and the second semiconductor layer, and', 'a second part that is in contact with a side surface of the light emitting layer., 'the third semiconductor layer includes'}2. The light emitting device according to claim 1 , whereinthe third semiconductor layer is a p-type semiconductor layer, andan impurity concentration of the third semiconductor layer is higher than an impurity concentration of the second semiconductor layer.3. The light emitting device according to claim 1 , whereina thickness of the second part is less than a thickness of the first part.4. The light emitting device according to claim 1 , whereinan impurity concentration of the second part is lower than an impurity concentration of the first part.5. The light emitting device according to claim 1 , ...

Projection optical system, image projection apparatus, and image projection system

A projection optical system according to the present disclosure includes, in order from a side on which a light source is located to a projection side along an optical axis: a first lens group that includes one or more lenses, has a positive focal length, and condenses light from the light source on a primary image-forming point that is an image of the light source; a deflector that scans light from the first lens group; and a second lens group that includes one or more lenses, has a positive focal length, and forms an image of light from the deflector at a position of a secondary image-forming point that is an image of the primary image-forming point, and the first lens group forms the primary image-forming point between the first lens group and the second lens group along the optical axis.

LIGHT SOURCE DEVICE AND PROJECTOR

A light source device according to the present disclosure includes a substrate having a first surface, a plurality of light emitting elements disposed on the first surface side of the substrate, a frame body which is disposed so as to surround the plurality of light emitting elements, and which is bonded on the first surface side of the substrate, and a lid body which has a light transmissive member configured to transmit light emitted from the plurality of light emitting elements, which is disposed so as to be opposed to the first surface of the substrate, and which is bonded on an opposite side of the frame body to the substrate. The plurality of light emitting elements is housed in a housing space, the housing space being formed by the substrate, the frame body and the lid body. The frame body is formed of a material including a nonconductive material. 1. A light source device comprising:a substrate having a first surface;a plurality of light emitting elements disposed on the first surface side of the substrate;a frame body which is disposed so as to surround the plurality of light emitting elements, and which is bonded on the first surface side of the substrate; anda lid body which has a light transmissive member configured to transmit light emitted from the plurality of light emitting elements, which is disposed so as to be opposed to the first surface of the substrate, and which is bonded on an opposite side of the frame body to the substrate, whereinthe plurality of light emitting elements is housed in a housing space, the housing space being formed by the substrate, the frame body and the lid body, andthe frame body is formed of a material including a nonconductive material.2. The light source device according to claim 1 , whereinthe lid body further includes a support member to which the light transmissive member is bonded, andthe support member is bonded on an opposite side of the frame body to the substrate.3. A light source device comprising:a substrate ...

Electronic Device with Optically Pellucid Electrical Conductor and Systems and Methods for Compensating for the Same

An electronic device includes at least one optically transparent substrate defining an optical transmission area and a display having an array of pixel structures each including a plurality of electroluminescent elements selectively operable to project light through the optical transmission area. An optically pellucid electrical conductor is coupled to the optically transparent substrate at a first subarea of the optical transmission area. One or more processors cause a first set of pixel structures to project light through the first subarea with a first luminous intensity and a second set of pixel structures to project other light through a second subarea of the optical transmission area that is complemental to the first subarea with a second luminous intensity that is different from the first luminous intensity. 1. An electronic device , comprising:a fascia defining an exterior major surface of the electronic device, the fascia comprising at least one optically transparent substrate defining an optical transmission area;a display comprising an array of pixel structures each comprising a plurality of electroluminescent elements selectively operable to project light through the optical transmission area;an optically pellucid electrical conductor coupled to the at least one optically transparent substrate at a first subarea of the optical transmission area; and a first set of pixel structures projecting light through the first subarea to project the light with a first luminous intensity; and', 'a second set of pixel structures projecting other light through a second subarea of the optical transmission area that is complemental to the first subarea to project the other light with a second luminous intensity;', 'the first luminous intensity being different from the second luminous intensity., 'one or more processors operable with the display, the one or more processors causing2. The electronic device of claim 1 , the first luminous intensity being greater than the ...

PROJECTION APPARATUS AND ILLUMINATION SYSTEM

A projection apparatus and an illumination system are provided. The illumination system includes a light source emitting a light beam, at least one light-diffusion element disposed on a transmission path of the light beam from the light source and inclined to the transmission path of the light beam from the light source, a wavelength conversion module disposed on a transmission path of the light beam from the at least one light-diffusion element. A long axis direction of a light spot projected on the wavelength conversion module is perpendicular to an extending direction of a boundary between the reference plane and the at least one light-diffusion element. The wavelength conversion module is adapted to convert a first portion of the light beam from the light-diffusion element to a converted light beam. The converted light beam and a second portion of the light beam from the light-diffusion element form a illumination light.

LIGHT PROJECTOR

A light projector includes a light source, an optical phase modulator, and a liquid crystal element. The light source is configured to emit light. The optical phase modulator is configured to receive the light and to modulate a phase of the light. The liquid crystal element is configured to receive the light and to generate a patterned light. The liquid crystal element includes two substrates, two conducting electrodes, and a liquid crystal layer disposed between the conducting electrodes. The conducting electrodes are respectively disposed on the substrates. The liquid crystal layer includes plural liquid crystals dispersed in a patterned polymer structure. A pattern of the patterned light is adjustable by changing a voltage applied between the conducting electrodes. 1. A light projector , comprising:a light source configured to emit light;an optical phase modulator configured to receive the light and to modulate a phase of the light; and two substrates;', 'two conducting electrodes respectively disposed on the substrates; and', 'a liquid crystal layer disposed between the conducting electrodes, wherein the liquid crystal layer comprises a plurality of liquid crystals dispersed in a patterned polymer structure;, 'a liquid crystal element configured to receive the light and to generate a patterned light, wherein the liquid crystal element compriseswherein a pattern of the patterned light is adjustable by changing a voltage applied between the conducting electrodes.2. The light projector of claim 1 , wherein the optical phase modulator is a diffractive optical element (DOE).3. The light projector of claim 1 , wherein the optical phase modulator is a microlens array (MLA).4. The light projector of claim 1 , further comprising:a lens disposed between the light source and the optical phase modulator and configured to focus the light emitted from the light source.5. The light projector of claim 1 , further comprising:a control driver electrically connected to the ...

LIGHT SOURCE DEVICE AND IMAGE PROJECTION DEVICE

Disclosed is a light source device including a light source that includes a light emitting tube; and a cooler configured to cool the light emitting tube. The cooler includes an inlet port for drawing cooling air for cooling the light emitting tube; a flow channel that extends from the inlet port to the light emitting tube in a horizontal direction and that is for flowing the cooling air toward the light emitting tube; and a baffle plate that is disposed in the flow channel and that can slide in a gravity direction. The baffle plate has a shape and openings such that, in an installation state, an upper portion of the flow channel is opened and a lower portion of the flow channel is closed by the shape and positions of the openings of the baffle plate. 1. A light source device comprising:a light source that includes a light emitting tube; anda cooler configured to cool the light emitting tube, an inlet port configured to draw cooling air for cooling the light emitting tube;', 'a flow channel that extends from the inlet port to the light emitting tube in a horizontal direction and that is for flowing the cooling air toward the light emitting tube; and', 'a baffle plate that is disposed in the flow channel and that is configured to slide in a gravity direction that is perpendicular to the direction in which the flow channel is extended, and, 'wherein the cooler includes'}wherein the baffle plate has a shape and openings such that, in an installation state, an upper portion of the flow channel is opened and a lower portion of the flow channel is closed by the shape and positions of the openings of the baffle plate.2. The light source device according to claim 1 ,wherein the openings of the baffle plate are disposed at an upper side and a lower side of the baffle plate, respectively, andwherein one of the openings at the upper side and at the lower side that corresponds to the installation state of the light source device is disposed at a position at which the one of the ...

OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS

An optical system includes a light source, an illumination optical system, and an optical modulator. The lens array and the lens of the illumination optical system are arranged in that order from an upstream side of an optical path of light from the light source. The light shield is disposed at the upstream side relative to the lens in the optical path. The light shield blocks some rays incident within a range of an effective diameter of the lens. The illumination optical system emits the light to the optical modulator. The optical modulator emits the incident light to a first direction and a second direction different from the first direction. A center of an effective diameter of the lens array is offset from a center of the effective diameter of the lens to an opposite side of the light shield in a direction orthogonal to the optical axis. 1. An optical system comprising:a light source;an illumination optical system; andan optical modulator, a lens array;', 'a lens, the lens array and the lens arranged in that order from an upstream side of an optical path of light emitted from the light source; and', 'a light shield disposed at the upstream side relative to the lens in the optical path, the light shield configured to block some light rays of the light incident within a range of an effective diameter of the lens,, 'the illumination optical system being configured to emit the light to the optical modulator and includingthe optical modulator configured to emit the light incident on the optical modulator toward a first direction and a second direction different from the first direction,wherein a center of an effective diameter of the lens array is offset from a center of the effective diameter of the lens to an opposite side of the light shield in a direction orthogonal to an optical axis of the illumination optical system.2. The optical system according to claim 1 ,wherein the lens array is disposed in an area other than an area in which the light shield is disposed ...

SEMI-DENSE DEPTH ESTIMATION FROM A DYNAMIC VISION SENSOR (DVS) STEREO PAIR AND A PULSED SPECKLE PATTERN PROJECTOR

A method for semi-dense depth estimation includes receiving, at an electronic device, a control signal of a speckle pattern projector (SPP and receiving from each sensor of a dynamic vision sensor (DVS) stereo pair, an event stream of pixel intensity change data, wherein the event stream is time-synchronized with the control signal of the SPP. The method further includes performing projected light filtering on the event stream of pixel intensity change data for each sensor of the DVS stereo pair, to generate synthesized event image data, the synthesized event image data having one or more channels, each channel based on an isolated portion of the event stream of pixel intensity change data and performing stereo matching on at least one channel of the synthesized event image data for each sensor of the DVS stereo pair to generate a depth map for at least a portion of the field of view. 1. A method for semi-dense depth estimation , the method comprising:receiving, at an electronic device, a control signal of a speckle pattern projector (SPP), the control signal indicating an on/off state, as a function of time, of a predetermined light pattern projected by the SPP on a field of view;receiving from each sensor of a dynamic vision sensor (DVS) stereo pair, an event stream of pixel intensity change data, wherein the event stream is time-synchronized with the control signal of the SPP and comprises a first portion associated with light from a scene in the field of view and a second portion associated with the predetermined light pattern projected by the SPP;performing projected light filtering on the event stream of pixel intensity change data for each sensor of the DVS stereo pair, to generate synthesized event image data, the synthesized event image data having one or more channels, each channel based on an isolated portion of the event stream of pixel intensity change data; andperforming stereo matching on at least one channel of the synthesized event image data for ...

Light detecting element and projection apparatus

A light detecting element for detecting rotations of a wheel is provided. The light detecting element includes a circuit board and an optical transceiver component. The circuit board has a first conductive layer and a first insulation layer. The first conductive layer has a first heat dissipation region, and the first insulation layer covers the first conductive layer and exposes the first heat dissipation region. The optical transceiver component is disposed on the first heat dissipation region and electrically connected to the circuit board. The optical transceiver component includes a light emitter and a light receiver, the light emitter is adapted to emit a light signal to the wheel, and the light receiver is adapted to receive the light signal reflected from the wheel. The invention further provides a projection apparatus having the light detecting element.

PROJECTOR

A first image display element modulates first illumination light in which red illumination light and infrared illumination light are alternately switched, based on an image signal for visible light image and an image signal for infrared light image, and emits first image light in which red image light and infrared image light are alternately switched. A second image display element modulates green illumination light based on a green image signal, and emits green image light. A third image display element modulates blue illumination light based on a blue image signal, and emits blue image light. A synthesizer synthesizes the first image light, the green image light, and the blue image light with one another, and obtains synthesized image light. A projection unit projects the synthesized image light. 1. A projector comprising:a first image display element configured to modulate first illumination light in which red illumination light and infrared illumination light are alternately switched, based on an image signal for a visible light image and an image signal for an infrared light image, respectively, and to emit first image light in which red image light and infrared image light are alternately switched;a second image display element configured to modulate green illumination light based on a green image signal, and to emit green image light,a third image display element configured to modulate blue illumination light based on a blue image signal, and to emit blue image light;a synthesizer configured to synthesize the first image light, the green image light, and the blue image light with one another, and to obtain synthesized image light; anda projection unit configured to project the synthesized image light.2. The projector according to claim 1 , further comprising a transmission-type polarizing plate configured to allow penetration of first polarized light of each of the first image light claim 1 , the green image light claim 1 , and the blue image light claim 1 , ...

TECHNIQUES FOR SELECTIVE VIEWING OF PROJECTED IMAGES

An entertainment enhancement system includes an infrared projection system configured to output an infrared image to a target surface. The infrared projection system includes a controller configured to coordinate projection of the infrared image with a separate action by generating instructions for projecting the infrared image based on data received by the controller indicative of an active status of the separate action and an infrared emitter configured to receive the generated instructions and emit the infrared image to the target surface. The system also includes a viewing device configured to be wearable by a user. The viewing device includes at least one lens and a filter assembly configured to shift the infrared image from an infrared frequency to a visible light frequency such that the infrared image is viewable on the target surface via the viewing device. 1. An entertainment enhancement system , comprising: a controller configured to coordinate projection of the infrared image with a separate action by generating instructions for projecting the infrared image based on data received by the controller, the data indicative of an active status of the separate action; and', 'an infrared emitter configured to receive the generated instructions and emit the infrared image to the target surface; and, 'an infrared projection system configured to output an infrared image to a target surface, wherein the infrared projection system comprisesa viewing device configured to be wearable by a user, wherein the viewing device comprises at least one lens and a filter assembly, the filter assembly configured to shift the infrared image from an infrared frequency to a visible light frequency such that the infrared image is viewable on the target surface through the at least one lens of the viewing device.2. The entertainment enhancement system of claim 1 , wherein the infrared image comprises a supplemental message for the user.3. The entertainment enhancement system of claim ...

PICKING DEVICE WITH AN IMAGE VIRTUALLY LOCATED IN A WORK AREA

The invention refers to a picking device () for picking articles, in particular for a storage lift (), with at least one operating area () for an operator (), with at least one work area () for picking, and with at least one projection device () for at least temporarily marking a location () at least in the work area (). The invention also refers to a method for picking. In order to improve the ergonomics for the operator and the efficiency of picking, it is provided according to the invention that the picking device () has, during operation, at least one image () which can be viewed from the operating area () and is virtually located in the work area (). 1. A picking device for picking articles for an automatic storage system , comprising:at least one operating area for an operator;at least one work area for picking; and{'b': '17', 'at least one projection device for at least temporarily marking a location () in the at least one work area, wherein the picking device has, during operation, at least one image which can be viewed from the operating area and is located virtually in the work area.'}2. The picking device of claim 1 , wherein the at least one projection device is connected to at least one storage element containing an image database.3. The picking device of claim 1 , wherein claim 1 , the at least one projection device is connected to at least one storage element containing an order database.4. The picking device of claim 1 , wherein the at least one projection device is connected to at least one control unit which is adapted to calculate the arrival time of an article.5. The picking device of claim 1 , wherein the at least one projection device is captively fixedly connected to a stationary part of the picking device.6. The picking device of claim 1 , wherein the at least one projection device comprises at least one generator for a light-generating plasma.7. The picking device of claim 1 , wherein the at least one projection device comprises at least one ...

Adjustable light distribution for active depth sensing systems

Aspects of the present disclosure relate to a device for active depth sensing with an adjustable distribution of light projected. An example device includes a light projector. The light projector includes a light source configured to emit a light and a diffractive element. The diffractive element includes a first diffractive optical element having a first refractive index and configured to project a first distribution of light, a second diffractive optical element having a second refractive index and configured to project a second distribution of light based on a refractive material between the first diffractive optical element and the second diffractive optical element, and the refractive material located between the first diffractive optical element and the second optical element. The refractive material is adjustable to have a second refractive index for the first mode and a third refractive index for the second mode.

Holographic projector

显示装置

本发明保护一种单板式液晶投影装置，包括白光光源模块，用于发出至少包括红光、绿光和蓝光成分的第一光束；第一波长角度分光器，第一光束经第一波长角度分光器成为彩色光束；第一微透镜阵列，用于将彩色光束汇聚，使得彩色光束在参考平面上形成红绿蓝分离的彩色条纹或彩色斑点；液晶显示器件，包括包含多个液晶像素的液晶像素阵列，液晶像素阵列设置于参考平面上，不同颜色的彩色条纹或彩色斑点分别落入不同的液晶像素上，液晶显示器件用于对入射光进行调制，形成彩色图像出射；投影镜头，用于将液晶显示器件出射的彩色图像投射至预定位置；其中，当第一光束的截面积与液晶显示器件的有效像素面积相当时，第一光束为小发散角光。

Light source module

一种供投影设备使用的光源模块，其主要目的以及优点在于可缩小投影设备的体积。该光源模块包含一发光单元，一光收集单元，一分光装置以及一光转换单元。该发光单元包含有一镭射光源或一发光二极体(LED)光源，用以产生一第一色光束。该光收集单元包含有一第一光轴，以及至少一第一镜片用以收集从该发光单元或其他元件入射至该光收集单元的光源。该分光装置与该光收集单元布置于同一区域上，用以反射从该发光单元入射至该光收集单元的该第一色光束。该光转换单元包含有一与该第一光轴大致垂直相交的第一平面，以及至少一波长转换区域，用以将从该分光装置入射至该至少一波长转换区域的该第一色光束转换成可大致沿该第一光轴射出的至少一第二色光束。

Projection type image display device

本发明提供投射型影像显示装置。投射型影像显示装置具备：射出光的光源部(110)；根据影像输入信号而生成影像光的影像生成部；将来自光源部的光导向影像生成部的导光光学系统；以及投射由影像生成部生成的影像光的投射光学系统。光源部(110)具有：产生光的光源(12)；被来自光源的光激发的荧光体(20)；以及将来自光源的光导向荧光体的二向色镜(18)。二向色镜(18)配置为，来自光源(12)的光的入射角为50°以上且60°以下。

Integrated imaging display system

本发明公开了一种集成成像显示系统。该集成成像显示系统包括：光源、汇聚透镜、照明微透镜阵列和投影微透镜阵列；照明微透镜阵列中的照明微透镜单元与投影微透镜阵列中的投影微透镜单元一一对应设置，汇聚透镜将光源发出的全部光线形成平行光线后照射至照明微透镜阵列；每一个照明微透镜单元靠近投影微透镜单元的一侧均设置有子图；每一个照明微透镜单元出射的所有光线穿过子图后均照射在对应的投影微透镜单元上，投影微透镜阵列显示子图的图像。采用本发明提供的集成成像显示系统，能够避免伪像，提高集成成像显示系统的成像效果。

Light collecting optical system and projection-type image display device

집광 광학계(1)는, 면발광 광원(11r, 11g, 11b)과 콜리메이트 렌즈(13r, 13g, 13b)와 콘덴서 렌즈(19)를 갖고, 면발광 광원의 발광면(12r, 12g, 12b)이, 서로 같은 크기의 직사각형 형상이며, 또한, 통합기 로드(20)의 입사면(21)과 닮은꼴 형상이며, 콜리메이트 렌즈(13r, 13g, 13b)로부터 콘덴서 렌즈(19)까지의 광학 거리가 대략 동일하게 되도록 콜리메이트 렌즈(13r, 13g, 13b)가 배치되고, 발광면(12r, 12g, 12b)으로부터 콜리메이트 렌즈(13r, 13g, 13b)까지의 광학 거리 Lr, Lg, Lb는, Lb<Lg<Lr을 만족하고, 또한, 콜리메이트 렌즈(13r, 13g, 13b) 및 콘덴서 렌즈(19)가 통합기 로드(20)의 입사면(21)상에 결상시키는 발광면이 서로 대략 같은 크기가 되도록 면발광 광원이 배치되어 있다. The condensing optical system 1 has surface emitting light sources 11r, 11g, 11b, collimating lenses 13r, 13g, 13b, and a condenser lens 19, and the light emitting surfaces 12r, 12g, 12b of the surface emitting light source. This is a rectangular shape having the same size and a shape similar to the incident surface 21 of the integrator rod 20, and the optical distance from the collimating lenses 13r, 13g, 13b to the condenser lens 19. The collimated lenses 13r, 13g, and 13b are arranged so that are substantially the same, and the optical distances Lr, Lg, and Lb from the light emitting surfaces 12r, 12g, 12b to the collimated lenses 13r, 13g, and 13b are: Lb < Lg < Lr, and the light emitting surfaces formed by collimating lenses 13r, 13g, 13b and condenser lens 19 on the incidence surface 21 of the integrator rod 20 are approximately equal to each other. The surface emitting light source is arrange | positioned so that it may become large.

Image projecting apparatus

일 실시예에 따른 영상 투사 장치는 조명 광학계 및 복수 개의 투사 광학계를 포함하고, 상기 조명 광학계는 광선(光線)을 방사하는 광원과, 상기 광원으로부터 전달받은 광선의 다발인 광선속(光線束) 중 일부는 반사시키고 나머지는 투과시키는 분배부(splitter)를 포함하고, 상기 투사 광학계는 상기 반사된 광선속을 이용하여서 기 정의된 제1 영상을 형성하는 제1 패널과, 상기 제1 영상을 전달받아서 제1 스크린을 향하여 투사하는 제1 투사 렌즈부와, 상기 투과된 광선속을 이용하여서 기 정의된 제2 영상을 형성하는 제2 패널과, 상기 제2 영상을 전달받아서 제2 스크린을 향하여 투사하는 제2 투사 렌즈부를 포함한다. An image projection apparatus according to an embodiment includes an illumination optical system and a plurality of projection optical systems, wherein the illumination optical system is a part of a light beam that emits light rays and a bundle of light beams that are bundles of rays transmitted from the light source Includes a splitter that reflects and transmits the rest, and the projection optical system includes a first panel that forms a predefined first image using the reflected light beam, and receives the first image and receives the first image. A first projection lens unit projecting toward the screen, a second panel forming a predefined second image using the transmitted light beam, and a second projection receiving the second image and projecting it toward the second screen It includes a lens unit.

PROJECTION DEVICE, PROJECTION SYSTEM AND METHOD FOR CALIBRATING PROJECTED IMAGE

A projection device, a projection system and a method for calibrating projected image are provided. The projection device and an external projection device the same image source and respectively project an image and another image corresponding to the image source. The same portion of the image source where the two images overlap each other forms an overlapping area. The projection device includes a lens, a light shielding member and a processor. The light shielding member is disposed on the lens. The processor controls the light shielding member to selectively shade a partial area of the lens according to the brightness of the image source, wherein the partial area corresponds to the overlapping area.

Light source lamp for projector

본 발명은 프로젝터용 광원장치에 관한 것으로, 광빔이 방출되는 광원을 구형을 만들기 위하여, 프로젝터용 광원램프에 있어서, 상기 광원램프 내부에 소정의 간극을 두고 마주보게 배치된 한쌍의 전극으로서 복수 쌍이 구비된 것을 특징으로 한다.

Light emitting device and projector

Overhead projector.

Overhead projector.

Un rétroprojecteur qui irradie une lumière sur un objet (100) ou sur une feuille de papier focalise la lumière réfléchie depuis cet objet ou cette feuille de papier sur une lentille de focalisation (42), isole les rayons ultraviolets ou infrarouges présentant une longueur d'onde spécifique de la lumière focalisée via un filtre (46), forme tout d'abord une image en irradiant la lumière isolée sur un dispositif de formation d'image (43) et projette une image sur un écran de projection (50) via une lentille de projection en irradiant la lumière visible sur le dispositif de formation d'image sur lequel une image qui doit être agrandie et projetée est formée, d'où l'obtention ainsi d'une image davantage nette. An overhead projector which irradiates light on an object (100) or on a sheet of paper focuses the light reflected from this object or this sheet of paper on a focusing lens (42), isolates ultraviolet or infrared rays having a length of specific wave of light focused via a filter (46), first forms an image by irradiating the isolated light on an image forming device (43) and projects an image on a projection screen (50) via a projection lens by irradiating visible light on the image forming device on which an image to be enlarged and projected is formed, thereby obtaining a sharper image.

Printed optical element e.g. microlens, fabricating method for e.g. optical circuit, involves depositing liquid substance on substrate by opposition of fabrication techniques comprising deposition of solid substance

The method involves depositing additional layers (112, 113 122, 123, 132, 133, 142, 143) of liquid substance i.e. water based flexo ink, on a part of a printing substrate (10). The liquid substance is deposited on the printing substrate by successive bands of an edge of the substrate and by opposition of fabrication techniques comprising a deposition of solid substance transformed into liquid deposition, where a surface of the substrate is made of a photochromic material. Independent claims are also included for the following: (1) a device for fabricating printed optical elements (2) a machine for fabricating printed optical elements.

Apparatus for optical projection and the lighting apparatus for using the apparatus for optical projection

一种光学投影设备和使用该光学投影设备的照明设备。所述光学投影设备包括光规格设置单元，用于设置光规格；形状设置单元用于设置光生成的形状；位置设置单元，用于设置形状的位置；大小设置单元，用于设置形状的大小；和光学数据生成单元，用于基于规格、形状、位置和大小生成光学数据。所述光学投影设备还包括光绘制单元，用于通过进行使用所述光学数据的绘制处理来生成光绘制数据；光学投影单元，用于使用所述光绘制数据将形状投影在所述位置；以及操作单元，用于允许用户设置表示规格、形状、位置和大小的一个或多个参数。

Illumination optical system and projector using the same

An illumination optical system includes: a light source that generates excitation light; a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than the irradiation spot of the excitation light; a plate in which the fluorescent body is disposed; and a driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body.

Piezoelectric driving device, driving method thereof, robot, and electronic component transfer device

本申请提供压电驱动装置及其驱动方法、机器人、电子部件输送装置。在弯曲振动的共振频率高于纵向振动的共振频率的情况下，压电驱动装置的驱动控制是困难的。压电驱动装置具备压电振动体和驱动电路。压电振动体具备：沿第一方向延伸并与被驱动部件接触的触头；根据第一驱动电压在与第一方向交叉的方向上产生弯曲振动的第一压电元件；以及根据第二驱动电压在第一方向上产生纵向振动的第二压电元件。压电振动体构成为纵向振动的共振频率高于弯曲振动的共振频率。驱动电路将第一驱动电压及第二驱动电压的驱动频率设定为纵向振动的共振频率以上。

Light projection device and illumination device using the same

Illumination system and projection device

一种照明系统，包括激发光源以及波长转换元件。激发光源提供激发光束。波长转换元件具有波长转换区域、反射区域以及透光区域。波长转换区域以及反射区域形成环形区域。透光区域被环形区域所围绕，其中激发光束用于穿透波长转换元件的透光区域。本发明的照明系统体积小可具有良好的光学效率。此外，一种具有上述照明系统的投影装置亦被提供。

Image projector

本發明圖像投影儀包括具有像素元素的二維陣列的空間光調製器(SLM，spatial light modulators)，像素元素能夠被控制以調製由像素元素透射或反射的光的屬性。照明佈置向SLM傳送照明。准直佈置使來自SLM的照明准直以生成被引導至出射光闌的准直圖像。照明佈置被配置成對SLM的區域依次照明，每個區域對應於多個像素元素。控制器同步控制像素元素和照明佈置，以便投射具有與數位圖像對應的像素強度的准直圖像。

A kind of short focus projection objective and optical fiber scanning projection device

本发明公开了一种短焦投影物镜以及光纤扫描投影设备，该短焦投影物镜包括设置在共同光轴上的五片透镜和一个光阑，从面向投影像面开始依次设置：具有正光焦度的第一透镜；具有正光焦度的第二透镜；光阑；具有负光焦度的第三透镜；具有正光焦度的第四透镜；具有正光透镜的第五透镜；各透镜满足以下关系式：2<f 1 /f w <2.5、1<f 2 /f w <1.5、‑0.7<f 3 /f w <‑0.42、0.7<f 4 /f w <0.9、3.5<f 5 /f w <4；其中，f 1 为所述第一透镜的焦距，f 2 为所述第二透镜的焦距，f 3 为所述第三透镜的焦距，f 4 为所述第四透镜的焦距，f 5 为所述第五透镜的焦距，f w 为所述短焦投影物镜的总焦距。本发明公开的短焦投影物镜满足了现有技术的需求，并且结构简单，系统体积小，便于系统集成，方便用于可穿戴显示领域。

Light source module and projection arrangement

本发明提供一种光源模组及投影装置，光源模组包括光源以及透镜。该光源用于产生光束。该透镜设置于该光源的一侧，该透镜用于汇聚该光束，该透镜的入射面为球面或第一非球面曲面，该透镜的出射面包括对称该透镜的光轴配置的两个第二非球面曲面，该第二非球面曲面的光轴偏离该透镜的光轴，该第二非球面曲面包括第一部分以及第二部分，该第二部分为相对于该第一部分靠近该透镜的光轴的部分，该第二部分的曲率半径小于该第一部分的曲率半径，该入射面的曲率半径的绝对值大于该第二非球面曲面的曲率半径的绝对值。

Light source device and projector including light source device

Task The invention provides an optical source device and a projector including the optical source device, in which a microwave is used to reduce the size, and increase the life span. Means for Resolution The optical source device according to the invention includes a solid high frequency oscillating unit that outputs a high frequency signal, a waveguide that receives the high frequency signal output from the solid high frequency oscillating unit and radiates the received high frequency signal as a microwave, and a light emitting unit that emits light by the microwave radiated from the waveguide unit. A container of the waveguide unit has a space surrounded by reflective surfaces that reflect the microwave radiated from the antenna unit so as to collect the microwave. The projector includes this optical source device, an optical modulating unit that modulates a light beam emitted from the light emitting unit of the optical source device according to image information to form an optical image, and a projecting unit that projects the optical image formed by the optical modulating unit.

Image-generation device for a head-up display and method for controlling such a device

Optic and assembly for reduced reflections

An optic providing reduction in secondary or ghost images includes a beam splitter, a reflective surface, and at least one baffle therebetween. A transmissive surface may be located between the beam splitter and the reflective surface. The baffle is positioned to intercept internally reflected ghost rays while being substantially parallel to outside light rays along a line of sight of the viewer, permitting use in see-through optics. The baffles may be formed of diffusing structures, light absorbing material, and combinations of both. Baffles intercept and scatter or absorb ghost rays to the exclusion of projected image rays that provide a desired projected image which are internally reflected through the optic. An assembly including such optic integrated with a wearable vision system, such as a head-mounted display, is also disclosed for near-eye application.

Light source device and projection display device

【課題】高効率で色再現性のよい光源装置を実現する。 【解決手段】第１波長域の光を出射する光源と、第１波長域の光により励起され、第２波長域の光を発光する第１の蛍光体と、第１の蛍光体に積層され、第１波長域の光及び第２波長域の光により励起されて、第３波長域の光を発光する第２の蛍光体とを含む波長変換部材と、を備える、光源装置が提供される。

Overhead projector

一种高架投影仪，它将光照射在一个物或纸张 上，将从其反射的光聚焦在一个聚焦透镜上，通过一 个滤光器将聚焦的光中具有特定波长的紫外或红外 线隔离出来，先通过将隔离的光照射到成象装置上形 成图象，并通过将可见光照射到其上形成所要放大和 投影的图象的成象装置上而将一个图象经过一个投 影透镜投影到一个投影屏幕上，从而获得更清晰的图 象。

Lighting device with primary light unit and phosphor element

本发明涉及一种具有初级光单元(2)和荧光材料元件(3)的照明装置(1)，荧光材料元件具有第一和第二转换区域(4，5)，其转换光在其光谱特性方面不同；因此，利用照明装置(1)能够同时将第一和第二转换光以及还有由初级光单元(2)发射的初级光的有效光部分无转换地引导至照明应用。

Optical element, light source device, and projector

本公开提供一种能够实现视频的广色域化和视频的亮度提高的光学元件、包括该光学元件的光源装置和包括该光源装置的投影仪。提供一种包括第一颜色转换层、第二颜色转换层、和绝热层的光学元件，其中绝热层被布置在第一颜色转换层与第二颜色转换层之间，以及包括光学元件的光源装置，以及包括光源装置的投影仪。