Thermal Interface Material

Anamorphic light guide

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.

Uniform chemical vapor deposition coating on a 3-dimensional array of uniformly shaped articles

The present invention is a method of coating uniformly shaped and sized articles. The method includes providing a reactor having an arrayed inner surface, positioning the articles within the reactor, and coating the articles.

Remote phosphor led constructions

Flexible light emitting semiconductor device having a three dimensional structure

Provided is an article comprising a flexible circuit comprising a polymeric dielectric layer having first and second major surfaces, one or both of the first and second major surfaces having a conductive layer thereon, wherein at least one conductive layer comprises an electrical circuit configured to power one or more light emitting semi-conductor devices located on the flexible circuit, wherein the flexible circuit is shaped to form a three dimensional structure.

Flexible LED device and method of making

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces with a conductive layer on the first major surface and at least one cavity in the first major surface with a conductive layer in the cavity that supports a light emitting semiconductor device. The conductive layer in the cavity is electrically isolated from the second major surface of the dielectric layer.

Anamorphic light guide

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.

Flexible light emitting semiconductor device

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one via extending from the second major surface to the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer.

UNIFORM CHEMICAL VAPOR DEPOSITION COATING ON A 3-DIMINSIONAL ARRAY OF UNIFORMLY SHAPED ARTICLES

The present invention is a method of coating uniformly shaped and sized articles. The method includes providing a reactor having an arrayed inner surface, positioning the articles within the reactor, and coating the articles. 1. An optical system , comprising:an image surface;a stop surface; a first optical lens;', 'a partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths; and, 'a first optical stack disposed between the image surface and the stop surface and comprising a second optical lens;', 'a multilayer reflective polarizer convex along orthogonal first and second axes and comprising', 'at least one layer substantially optically biaxial at at least one first location on the at least one layer away from an optical axis of the second optical stack and substantially optically uniaxial at at least one second location away from the optical axis; and', 'a first quarter wave retarder disposed between the reflective polarizer and the first optical stack,, 'a second optical stack disposed between the first optical stack and the stop surface and comprisingwherein substantially any chief light ray that passes through the image surface and the stop surface is incident on each of the first optical stack and the second optical stack with an angle of incidence less than about 30 degrees, andwherein the multilayer reflective polarizer has at least one first location having a radial distance, r1, from an optical axis passing through an apex of the multilayer reflective polarizer and a displacement, s1, from a plane perpendicular to the optical axis at the apex, s1/r1 being at least 0.2, and wherein for an area of the reflective polarizer defined by s1 and r1, a maximum variation of a transmission axis of the reflective polarizer is less than about 2 degrees.2. The optical system of claim 1 , wherein an image source comprises the image surface and the stop surface is an exit pupil.3. The optical system of claim 1 , wherein ...

Remote phosphor LED constructions

Anamorphic light guide

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.

SHOCK INDICATOR

SHOCK INDICATOR5 A shock indicator is described herein comprising a housing having arrangedtherein at least one mass located at a first position in the housing, at least one resilient member arranged to be contacted by the mass, when the housing is subjected to a shock, the resilient member being configured to direct the mass from the first position to a second position in the housing, and an adhesive disposed in the10 housing to hold the mass at the second position after it is displaced from the first position, the mass being visible at the second position to indicate occurrence of the shock.FIG. 1 *G00002*

Remote phosphor LED device with broadband output and controllable color

A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different ClE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a function of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space.

Air processing system and headgear having the same

An air processing system, a headgear having such air processing system, a method of processing air, and a method of manufacturing an air processing system are disclosed. The air processing system includes a manifold, and air filtration module and an air processing module. The manifold has at least one air inlet. The air filtration module is disposed in the manifold and configured to receive an air flow from the at least one air inlet. The air processing module is disposed in the manifold and configured to modify at least one property of the air. The manifold is configured to be mounted to a headgear, and a weight of the system is less than 1000 g.

Flexible led device with wire bond free die

ANAMORPHIC LIGHT GUIDE

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved.

FLEXIBLE LIGHT EMITTING SEMICONDUCTOR DEVICE

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one cavity extending from the second major surface toward the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the first major surface having a conductive layer directly thereon, the dielectric layer having at least one cavity extending from the second major surface toward the first major surface, the conductive layer including electrically separated first and second portions, each of the first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer.2. The article of claim 1 , further comprising a thermal interface material disposed in the at least one cavity.3. The article of claim 1 , wherein each cavity in the at least one cavity is filled with conductive material.4. The article of further comprising a light emitting semiconductor device supported and electrically connected to the conductive layer on the first major surface by the first and second portions.5. The article of claim 1 , wherein the first and second portions of the conductive layer on the first major surface are electrically separated by a gap claim 1 , and a thermal interface material is disposed in the gap.6. The article of claim 1 , wherein the first portion is substantially aligned with a first cavity in the at least one cavity and the second portion is aligned with a different second cavity in the at least one cavity.7. The article of claim 1 , wherein the dielectric layer further comprises at least one via extending from the second major surface to the first major surface8. The article of claim 7 , ...

Flexible light emitting semiconductor device having thin dielectric substrate

Provided is a flexible light emitting semiconductor device that includes a thin flexible dielectric substrate having first and second major surfaces with a conductive layer on the first and second major surfaces.

Flexible LED device for thermal management

Provided is a flexible light emitting semiconductor device ( 26 ), such as an LED device, that includes a flexible dielectric layer ( 12 ) having first and second major surfaces and at least one via ( 10 ) extending through the dielectric layer from the first to the second major surface, with a conductive layer ( 19, 20, 18 ) on each of the first and second major surfaces and in the via. The conductive layer ( 18 ) in the via supports a light emitting semiconductor device ( 26 ) and is electrically isolated from the conductive layer ( 19 ) on the first major surface of the dielectric layer.

FLEXIBLE LIGHT EMITTING SEMICONDUCTOR DEVICE HAVING A THREE DIMENSIONAL STRUCTURE

Provided is an article comprising a flexible circuit comprising a polymeric dielectric layer having first and second major surfaces, one or both of the first and second major surfaces having a conductive layer thereon, wherein at least one conductive layer comprises an electrical circuit configured to power one or more light emitting semiconductor devices located on the flexible circuit, wherein the flexible circuit is shaped to form a three dimensional structure. 1. An article comprising:a flexible circuit having first and second sides comprising a polymeric dielectric layer having first and second major surfaces, one or both of the first and second major surfaces having a conductive layer thereon, wherein at least one conductive layer comprises an electrical circuit configured to power one or more light emitting semiconductor devices located on the flexible circuit, andwherein the flexible circuit is shaped to form a three dimensional structure.2. The article of wherein the flexible circuit includes partition lines in the dielectric substrate.3. The article of wherein light emitting semiconductor devices are located on both sides of the flexible circuit.4. The article of wherein the flexible circuit is folded such that all of the light emitting semiconductor devices are aligned in similar orientations.5. The article of wherein the flexible circuit is bent to form a three dimensional structure.6. The article of wherein the flexible circuit is folded to form a three dimensional structure.7. The article of wherein sections of the dielectric substrates are separated from each other at the partition lines to form a three dimensional structure.8. The article of wherein the flexible circuit is adhered on one side to a thermal interface material.9. The article of wherein the thermal interface material is adhered to a thermally-conductive substrate.10. The article of or wherein the thermal interface material is a thermally conductive adhesive.11. The article of wherein the ...

Thermal interface material

The present invention relates to a composite material for use as a thermal interface material between a heat source and a heat sink. The present invention also relates to the method of synthesizing such a composite material. The composite material has high thermal conductivity, low thermal resistance and functions as an adhesive.

FLEXIBLE LED DEVICE FOR THERMAL MANAGEMENT AND METHOD OF MAKING

Provided is a flexible light emitting semiconductor device (), such as an LED device, that includes a flexible dielectric layer () having first and second major surfaces and at least one via () extending through the dielectric layer from the first to the second major surface, with a conductive layer () on each of the first and second major surfaces and in the via. The conductive layer () in the via supports a light emitting semiconductor device () and is electrically isolated from the conductive layer () on the first major surface of the dielectric layer. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the dielectric layer having an array of vias extending from the first major surface to the second major surface, the first major surface having a first conductive layer thereon and the second major surface having a second conductive layer thereon, the vias being defined by walls comprising the dielectric material and the second conductive layer covering the via opening in the second major surface, at least one via having a third conductive layer on at least a portion of its walls and on at least a portion of the second conductive layer covering the via opening in the second major surface; the third conductive layer configured to directly or indirectly support a light emitting semiconductor device,wherein the first conductive layer is electrically conductive and the second and third conductive layers are thermally conductive, andwherein the third conductive layer provides no direct electrical connection between the first and the second conductive layers.2. The article of wherein the first conductive layer is electrically and thermally conductive.3. The article of wherein the second conductive layer is thermally and electrically conductive.4. The article of wherein the third conductive layer is thermally and electrically conductive.51. The article of wherein the third conductive layer comprises a portion of the ...

Flexible LED device and method of making

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces with a conductive layer on the first major surface and at least one cavity in the first major surface with a conductive layer in the cavity that supports a light emitting semiconductor device. The conductive layer in the cavity is electrically isolated from the second major surface of the dielectric layer.

Remote phosphor led device with broadband output and controllable color

ARTICLE AND METHOD OF MAKING AND USING THE SAME

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures.

Article and method of making and using the same

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures.

Remote phosphor LED device with broadband output and controllable color

A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different CIE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a function of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space.

Remote phosphor LED constructions

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region.

Flexible led device for thermal management and method of making

REMOTE PHOSPHOR LED CONSTRUCTIONS

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region.

LED color combiner

UNIFORM CHEMICAL VAPOR DEPOSITION COATING ON A 3-DIMENSIONAL ARRAY OF UNIFORMLY SHAPED ARTICLES

A coated optical element has at least six contact points not all in a same plane. Each contact point is an optical point of contact. Adjacent contact points subtend an angle between about 25 to about 35 degrees at a center of the coated optical element. 1. A coated optical element having at least six contact points not all in a same plane , each contact point being an optical point of contact , wherein adjacent contact points subtend an angle between about 25 to about 35 degrees at a center of the coated optical element.2. The coated optical element of claim 1 , wherein the coated optical element has at least twelve contact points.3. The coated optical element of claim 1 , wherein adjacent contact points subtend an angle of about 30 degrees at the center of the coated optical element.4. The coated optical element of claim 3 , wherein for each contact point claim 3 , the contact point and a closest adjacent contact point subtend an angle of about 30 degrees at the center of the coated optical element.5. A three-dimensional array of optical elements claim 1 , each optical element being a coated optical element according to . This application is a Divisional patent application Ser. No. 15/105,949, filed Jun. 17, 2016, now allowed, which is a national stage filing under 35 U.S.C. 371 of PCT/US2014/070507, filed Dec. 16, 2014, which claims the benefit of Provisional Patent Application No. 61/921,238, filed Dec. 27, 2013, expired, the disclosures of which are incorporated by reference in their entirety herein.The present invention is related generally to methods of coating. In particular, the present invention is a method of applying a coating onto uniformly shaped and sized articles.In a remotely illuminated phosphor package, light from one or more ultraviolet or blue pump LEDs is imaged by a hemispherical lens onto a phosphor-containing layer that is approximately adjacent and coplanar to the LEDs. Excellent color uniformity for a single LED, and within a lot of LEDs ...

THERMAL INTERFACE MATERIAL

The present invention relates to a composite material for use as a thermal interface material between a heat source and a heat sink. The present invention also relates to the method of synthesizing such a composite material. The composite material has high thermal conductivity, low thermal resistance and functions as an adhesive.

LED color combiner

A light source combines colored light from different LED sources to provide white light output. Multiple LEDs emitting light at different peak wavelengths may be disposed on a flexible substrate, the LEDs being close to an aperture formed in the substrate. Multiple mirrors, including at least one dichroic mirror, are oriented to reflect light from the multiple LEDs into the aperture. The flexible substrate includes a dielectric layer having a cavity region and an adjacent neighboring region that is thicker than the cavity region. The aperture and the multiple LEDs are all disposed in the cavity region of the dielectric layer. An integrating rod may be coupled to the aperture to receive the reflected light from the multiple LEDs.

Led color combiner

FLEXIBLE LIGHT EMITTING SEMICONDUCTOR DEVICE HAVING THREE-DIMENSIONAL STRUCTURE

Provided is an article comprising a flexible circuit comprising a polymeric dielectric layer having first and second major surfaces, one or both of the first and second major surfaces having a conductive layer thereon, wherein at least one conductive layer comprises an electrical circuit configured to power one or more light emitting semiconductor devices located on the flexible circuit, wherein the flexible circuit is shaped to form a three dimensional structure.

Flexible LED device with wire bond free die

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

Flexible LED device for thermal management and method of making

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces and at least one via extending though the dielectric layer from the first to the second major surface, with a conductive layer on each of the first and second major surfaces and in the via. The conductive layer in the via supports a light emitting semiconductor device and is electrically isolated from the conductive layer on the first major surface of the dielectric layer.

Flexible light emitting semiconductor device having a three dimensional structure

本發明提供一種物品，其包含一可撓式電路，該電路包含一具有第一及第二主要表面之聚合介電層，該第一及該第二主要表面中之一或兩者上具有一傳導層，其中至少一個傳導層包含一電路，其經組態而對位於該可撓式電路上之一或多個發光半導體裝置供電，其中使該可撓式電路成形而形成一三維結構。

Flexible LED device with wire bond free die

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

Flexible LED device with wire bond free die

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

Remote phosphor LED constructions

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region.

Uniform chemical vapor deposition coating on a 3-dimensional array of uniformly shaped articles

The present invention is a method of coating uniformly shaped and sized articles. The method includes providing a reactor having an arrayed inner surface, positioning the articles within the reactor, and coating the articles.

ARTICLE AND METHOD OF MAKING AND USING THE SAME

The invention relates to an article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures.

FLEXIBLE LED DEVICE WITH WIRE BOND FREE DIE

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the first major surface having a conductive layer thereon and having at least one cavity therein, the at least one cavity containing a conductive material including electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer on the first major surface.2. The article of claim 1 , wherein the conductive material in the cavity is electrically insulated from the second major surface.3. The article of claim 1 , wherein the second major surface has a conductive layer thereon.4. The article of claim 3 , wherein the conductive material in the cavity is electrically connected to the conductive layer on the second major surface.5. The article of claim 1 , wherein the at least one cavity is at least 25% filled with conductive material.6. The article of claim 1 , wherein the top surface of the at least one cavity is reflective.7. The article of claim 1 , wherein the top surface of the at least one cavity comprises a reflective material applied over at least a portion of the conductive material in the at least one cavity.8. The article of claim 1 , wherein the distance between the bottom of the at least one cavity and the second major surface is about 5% to about 75% of the thickness of the dielectric layer.9. The article of claim 1 , wherein the floor of the cavity comprises a dielectric coating disposed at the bottom of the at least one cavity to electrically ...

Article and method of making and using the same

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures

Led color combiner

A light source combines colored light from different LED sources to provide white light output. Multiple LEDs emitting light at different peak wavelengths may be disposed on a flexible substrate, the LEDs being close to an aperture formed in the substrate. Multiple mirrors, including at least one dichroic mirror, are oriented to reflect light from the multiple LEDs into the aperture. The flexible substrate includes a dielectric layer having a cavity region and an adjacent neighboring region that is thicker than the cavity region. The aperture and the multiple LEDs are all disposed in the cavity region of the dielectric layer. An integrating rod may be coupled to the aperture to receive the reflected light from the multiple LEDs.

REMOTE PHOSPHOR LED DEVICE WITH BROADBAND OUTPUT AND CONTROLLABLE COLOR

A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different CIE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a func tion of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space. 1. A light source for emitting broadband output light , comprising:a first and second LED adapted to emit first and second LED light respectively;a layer of phosphor material adapted to emit first longer wavelength phosphor light in response to excitation from light emitted by the first LED and second longer wavelength phosphor light in response to excitation from light emitted by the second LED; anda dichroic reflector configured to reflect at least a portion of the first LED light, and at least a portion of the second LED light, onto the layer of phosphor material in such a way that as light propagates from the first and second LEDs to the dichroic reflector it does not pass through the layer of phosphor material, the dichroic reflector substantially transmitting light at the first and second longer wavelengths so that such transmitted first and second longer wavelength phosphor light is included in the broadband output light of the light source;wherein the first longer wavelength phosphor light and optionally a remaining portion of the first LED light ...

Remote phosphor led constructions

A white light source includes a short wavelength LED and a phosphor layer that emits light at longer visible wavelengths. A dichroic reflector transmits the longer wavelength light, and reflects some LED light onto the phosphor such that as light travels from the LED to the dichroic reflector it does not pass through the phosphor. The LED may emit blue light, and the dichroic reflector may transmit a second portion of the LED light, such that the light source output light includes both the second portion of the LED light and the longer wavelength phosphor light. The LED may be mounted on a flexible substrate having a cavity region and neighboring region, the LED being mounted in the cavity region. A dielectric layer may be thinner in the cavity region than in the neighboring region, or a hole may extend completely through the dielectric layer in the cavity region.

FLEXIBLE LED DEVICE AND METHOD OF MAKING

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces with a conductive layer on the first major surface and at least one cavity in the first major surface with a conductive layer in the cavity that supports a light emitting semiconductor device. The conductive layer in the cavity is electrically isolated from the second major surface of the dielectric layer. 1. A flexible article comprising:a flexible polymeric dielectric layer having first and second major surfaces, the first surface having a first conductive layer thereon and having at least one cavity therein, the second major surface optionally having a second conductive layer thereon, the at least one cavity defined by one or more walls and a floor, the at least one cavity having a third conductive layer on at least a portion of its walls and floor; the third conductive layer configured to directly or indirectly support a light emitting semiconductor device,wherein the first conductive layer is electrically conductive and the second and third conductive layers are thermally conductive, andwherein there is no direct connection between the second major surface of the dielectric layer and the third conductive layer.2. The article of wherein the third conductive layer is electrically conductive and is electrically connected to the first conductive layer.3. The article of wherein the first electrically conductive layer comprises a circuit.4. The article of wherein the second major surface has a second conductive layer thereon.5. The article of wherein the second conductive layer is electrically conductive and comprises an electrical circuit.6. The article of wherein the second conductive layer comprises a thermally conductive adhesive.71. The article of wherein the first major surface of the dielectric layer has an array of cavities therein and at least a portion of the cavities are configured to support ...

FLEXIBLE LIGHT EMITTING SEMICONDUCTOR DEVICE

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one via extending from the second major surface to the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semi-conductor device to the conductive layer. 1. An article comprising:a flexible polymeric dielectric layer having first and second major surfaces, at least one of the first and second major surfaces having a conductive layer thereon, wherein when the first major surface has a conductive layer thereon, the dielectric layer has at least one via extending from the second major surface to the first major surface, and the conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer, and wherein when the first and second major surfaces each have a conductive layer thereon, the second major surface has at least one cavity therein, the at least one cavity contains a conductive material that is electrically connected to the conductive layer on the second major surface, and the conductive layer on the first major surface includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer on the first major surface.2. (canceled)3. The article of further comprising a thermal interface material disposed in the at least one via or cavity.4. The article of further comprising a light emitting semiconductor device supported and electrically connected to the conductive layer on the first major surface by the first and second portions.5. The article of claim 1 , wherein the first and second portions of the conductive layer on the first major surface are electrically separated by a gap ...

ANAMORPHIC LIGHT GUIDE

A backlight system for a display is described. The system can include an anamorphic light guide that comprises a light receiving portion, a light diverting portion, and a light output portion. The light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least an order of magnitude. The light input face is substantially perpendicular to light output face. The etendue of the light is substantially preserved. 1. An anamorphic light guide , comprising:a light receiving portion;a light diverting portion; anda light output portion, wherein the light receiving portion receives light having an area illuminating a first aspect ratio and the output light portion outputs light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least a factor of four, and wherein the light input face is substantially perpendicular to light output face.2. The anamorphic light guide of claim 1 , wherein light entering the input face has an aspect ratio of about from about 1 to 1 to about 1 to 4 and the light exiting the output face has an aspect ratio of at least 1 to 50.3. The anamorphic light guide of claim 1 , wherein the light diverting portion comprises an array of spatially separated diverting elements.4. The anamorphic light guide of claim 3 , wherein each diverting element comprises a substantially reflecting facet that substantially reflects light from the light receiving portion towards the light output portion.57-. (canceled)8. The anamorphic light guide of claim 3 , wherein each spatially separated diverting element has an upper major surface and a lower major surface bounded by a lower index material.9. The anamorphic light guide of claim 1 , wherein the light diverting portion comprises a plurality of curved planar channels ...

Flexible led device with wire bond free die

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

Flexible led device with wire bond free die

An article includes a flexible polymeric dielectric layer having first and second major surfaces. The first major surface has a conductive layer thereon and at least one cavity therein. The at least one cavity contains a conductive material including electrically separated first and second portions supporting and electrically connecting a light emitting semiconductor device to the conductive layer on the first major surface.

Remote phosphor led device with broadband output and controllable color

A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different CIE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a function of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space.

Anamorphic light guide

Flexible light emitting semiconductor device

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one via extending from the second major surface to the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semiconductor device to the conductive layer.

Flexible led device for thermal management and method of making

Provided is a flexible light emitting semiconductor device, such as an LED device, that includes a flexible dielectric layer having first and second major surfaces and at least one via extending through the dielectric layer from the first to the second major surface, with a conductive layer on each of the first and second major surfaces and in the via. The conductive layer in the via supports a light emitting semiconductor device and is electrically isolated from the conductive layer on the first major surface of the dielectric layer.

Uniform chemical vapor deposition coating on a 3-dimensional array of uniformly shaped articles

Article and method of making and using the same

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures

Article and method of making and using the same

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures

Thermal interface material

The present invention relates to a composite material for use as a thermal interface material between a heat source and a heat sink. The present invention also relates to the method of synthesizing such a composite material. The composite material has high thermal conductivity, low thermal resistance and functions as an adhesive.

Thermal interface material

The present invention relates to a composite material for use as a thermal interface material between a heat source and a heat sink. The present invention also relates to the method of synthesizing such a composite material. The composite material has high thermal conductivity, low thermal resistance and functions as an adhesive.

Ｌｅｄ色結合器

【課題】実質的に白色の出力光を生成するために、複数の着色ＬＥＤ又は他の源からの光が、好適に設計された二色性ミラーのセットを使用して結合される色結合器を提供する。【解決手段】光源は、白色光出力を提供するように、異なるＬＥＤ源５０ａ、５０ｂからの着色光を結合させる。異なるピーク波長で発光する複数のＬＥＤは、フレキシブル基板上に配置されてもよく、ＬＥＤは、フレキシブル基板に形成される開口６６に近接する。少なくとも１つの二色性ミラーを含む複数のミラー６２、６４は、複数のＬＥＤからの光を開口内へ反射するように配向される。フレキシブル基板は、空洞領域と、その空洞領域よりも厚い隣接した周辺領域とを有する誘電体層を含む。開口及び複数のＬＥＤは全て、誘電体層の空洞領域に配置される。統合ロッドは、複数のＬＥＤからの反射された光を受容するように、開口に連結されてもよい。【選択図】図４

Article and method of making and using the same

Article having a first single, discrete atomic, dry layer of a first weakly bonded crystalline material on at least a surface of a substrate. Embodiments of the articles are useful, for example, in automotive under-the-hood parts exposed to chemicals and extreme temperatures

Flexible light emitting semiconductor device

A flexible polymeric dielectric layer has first and second major surfaces. The first major surface has a conductive layer thereon. The dielectric layer has at least one via extending from the second major surface to the first major surface. The conductive layer includes electrically separated first and second portions configured to support and electrically connect a light emitting semi-conductor device to the conductive layer.