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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 22. Отображено 17.
16-01-2020 дата публикации

Lens drive device

Номер: US20200018923A1
Автор: Akira Suzuki, Shusuke Ichihashi
Принадлежит: TDK Corp

A lens drive device includes a movable unit, a fixed unit, and a support portion. The movable unit includes a magnet and a lens holder for holding a lens. The fixed unit includes a coil board and a base board. The coil board includes a coil facing the magnet and a coil wiring connected thereto. The base board is disposed opposite to the magnet across the coil board and includes a base wiring and an opening through which the optical axis of the lens passes. The support portion relatively movably connects the movable unit to the fixed unit and supports the movable unit to the fixed unit. A first conductive portion conductively connecting the coil wiring and the base wiring in the fixed unit is disposed away from an opening periphery of the opening to an outside in a radial direction.

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Номер записи: 1
21-01-2021 дата публикации

OPTICAL ELEMENT DRIVE DEVICE

Номер: US20210018717A1
Автор: ICHIHASHI Shusuke
Принадлежит: TDK TAIWAN CORPORATION

An optical element drive device includes a movable section and a fixed section. The movable section includes a first magnetic field generator for generating a first magnetic field and is drivable in a motion direction. The fixed section includes a sensor unit. The sensor unit carries out a detection based on the first magnetic field and a bias magnetic field different from the first magnetic field. 1. An optical element drive device comprising:a movable section including a first magnetic field generator for generating a first magnetic field and being drivable in a motion direction; anda fixed section including a sensor unit,wherein the sensor unit carries out a detection based on the first magnetic field and a bias magnetic field different from the first magnetic field.2. The optical element drive device according to claim 1 , wherein the sensor unit detects a combined magnetic field of the first magnetic field and the bias magnetic field.3. The optical element drive device according to claim 1 , whereinthe fixed section includes a bias magnetic field generator for generating the bias magnetic field, andthe bias magnetic field generator is disposed around a sensor included in the sensor unit.4. The optical element drive device according to claim 2 , whereinthe fixed section includes a bias magnetic field generator for generating the bias magnetic field, andthe bias magnetic field generator is disposed around a sensor included in the sensor unit.5. The optical element drive device according to claim 1 , whereinthe fixed section includes a second magnetic field generator for generating a second magnetic field, andthe second magnetic field is applied to the sensor unit as the bias magnetic field.6. The optical element drive device according to claim 2 , whereinthe fixed section includes a second magnetic field generator for generating a second magnetic field, andthe second magnetic field is applied to the sensor unit as the bias magnetic field.7. The optical element ...

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Номер записи: 2
28-01-2021 дата публикации

DRIVING MECHANISM

Номер: US20210029273A1
Автор: ICHIHASHI Shusuke
Принадлежит:

A driving mechanism is provided. The driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movably connected to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The driving assembly is driven by a control signal provided by a control assembly. The driving assembly includes shape memory alloy. 1. A driving mechanism , comprising:a fixed portion;a movable portion movably connected to the fixed portion; anda driving assembly used for driving the movable portion to move relative to the fixed portion, wherein the driving assembly drives the movable portion by a control signal provided by a control assembly, and the driving assembly comprises shape memory alloy.2. The driving mechanism as claimed in claim 1 , wherein the movable portion is used for connecting to an optical assembly having a main axis claim 1 , and the movable portion is positioned in an accommodation space of the fixed portion;wherein the driving mechanism further comprises a position sensing assembly for detecting the movement of the movable portion relative to the fixed portion, and the control assembly receives a position signal provided by the position sensing assembly; a first position sensor used for detecting the movement of the movable portion relative to the fixed portion in a first dimension, and used for providing the first position signal;', 'a second position sensor used for detecting the movement of the movable portion relative to the fixed portion in a second dimension, and used for providing the second position signal;', 'a first reference element corresponding to the first position sensor, wherein the first reference element comprises a first magnetic unit; and', 'a second reference element corresponding to the second position sensor, wherein the second reference element comprises a second magnetic unit, and at least a part of the position sensing assembly is ...

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Номер записи: 3
10-05-2018 дата публикации

LENS DRIVE DEVICE

Номер: US20180129064A1
Автор: ICHIHASHI Shusuke
Принадлежит: TDK Corporation

A lens drive device includes a movable portion, a fixed portion, and four suspension wires. The movable portion has a lens holder holding a lens and a magnet arranged at a position that does not overlap with the lens when viewed from a light axis direction. The fixed portion has a coil and a position sensor arranged to oppose against the magnet in the light axis direction and a circuit board having multiple wirings. The wires are arranged around the lens at approximately equal intervals in the light axis direction. The sensor and the coil are arranged to overlap with four sides of a four-sided polygon formed by connecting four wire connection positions where the wires are connected with the fixed portion. The sensor is arranged between the wire connection position closest to the sensor and the coil closest thereto. 1. A lens drive device comprising:a movable portion having a lens holder holding a lens and a magnet arranged at a position that does not overlap with the lens when viewed from a light axis direction;a fixed portion having a coil and a position sensor arranged to oppose against the magnet in the light axis direction and a circuit board having a plurality of wirings configured to supply electricity to the coil and the position sensor and transmit a signal from the position sensor; andfour suspension wires arranged around the lens at approximately equal intervals when viewed from the light axis direction and configured to support the movable portion against the fixed portion so that the movable portion can move relatively to the fixed portion in a vertical direction to the light axis direction by an electromagnetic force generated in the magnet and the coil,wherein the position sensor and the coil are arranged to overlap with four sides of a four-sided polygon formed by connecting four wire connection positions where the four suspension wires are connected with the fixed portion when viewed from the light axis direction, andthe position sensor is arranged ...

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Номер записи: 4
23-04-2020 дата публикации

ACTUATOR

Номер: US20200126703A1
Автор: AZUMA Noriei, ICHIHASHI Shusuke, Shinshi Tadahiko, Suzuki Akira, Suzuki Kenichi
Принадлежит:

An actuator includes: a magnet structure including first and second areas, a first magnet whose magnetic pole surface has an N pole and a second magnet whose magnetic pole surface has an S pole; and a circuit board including first and second wirings. When current flows from one end of the first wiring to the other end, the current circulates in one direction at least partially on the first magnet in the first area, while it circulates in a direction opposite to the one direction at least partially on the second magnet in the first area. When current flows from one end of the second wiring to the other end, the current circulates in the direction opposite to the one direction at least partially on the first magnet in the second area, while it circulates in the one direction at least partially on the second magnet in the second area. 1. An actuator comprising:a magnet structure including a plurality of first magnets whose each magnetic pole surface has an N pole and a plurality of second magnets whose each magnetic pole surface has an S pole; anda circuit board including first and second wirings and facing the magnetic pole surfaces of the respective first and second magnets through a gap,wherein the magnet structure includes first and second areas,wherein when current is made to flow from one end of the first wiring to other end thereof, the current circulates in one direction at least partially on each of the first magnets positioned in the first area, while it circulates in a direction opposite to the one direction at least partially on each of the second magnets positioned in the first area, andwherein when current is made to flow from one end of the second wiring to other end thereof, the current circulates in the direction opposite to the one direction at least partially on each of the first magnets positioned in the second area, while it circulates in the one direction at least partially on each of the second magnets positioned in the second area.2. The ...

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Номер записи: 5
01-07-2021 дата публикации

METHOD OF CORRECTING POSITION DETECTING SIGNAL AND POSITION DETECTING DEVICE

Номер: US20210203852A1
Автор: CAI Yongfu, HIRABAYASHI Hiraku, ICHIHASHI Shusuke
Принадлежит:

The position detecting device of the present invention is a device for detecting the position of a movable detection target within a predetermined movable range. The position detecting device comprises: a first magnet (A) and a second magnet (B) which are arranged so as to move integrally with the movement of the detection target; a first magnetic detecting circuit (A) that detects the magnetic field of the first magnet (A) and a second magnetic detecting circuit (B) that detects the magnetic field of the second magnet (B), which are arranged at positions outside the movable range; and a differential amplifier () that amplifies the difference between the detection signals of the magnetic field output from the first magnetic detecting circuit (A) and the second magnetic detecting circuit (B), and that outputs the amplified difference of the signal as a position detecting signal of the detection target. 1. A method of correcting a position detecting signal , wherein a detection target is movable in a first direction and in a second direction that is perpendicular to said first direction within a predetermined movable range in each direction , for correcting the position detecting signal of said detection target in said first direction in response to movement in said second direction , the method comprising:arranging a first magnet and a second magnet so as to move integrally with the movement of said detection target;arranging a first magnetic detecting circuit to detect a magnetic field of said first magnet and a second magnetic detecting circuit to detect a magnetic field of said second magnet, at a position outside said movable range in said first direction, respectively; andamplifying the difference between the detection signals of the magnetic field output from said first magnetic detecting circuit and said second magnetic detecting circuit by a differential amplifier, and outputting the amplified difference between the detection signals as a position detecting ...

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Номер записи: 6
09-08-2018 дата публикации

Lens drive device and electromagnetic drive unit

Номер: US20180224624A1
Автор: Shusuke Ichihashi
Принадлежит: TDK Corp

A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 1.1 to 2.0, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.

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Номер записи: 7
09-08-2018 дата публикации

LENS DRIVE DEVICE AND ELECTROMAGNETIC DRIVE UNIT

Номер: US20180224631A1
Автор: ICHIHASHI Shusuke
Принадлежит: TDK Corporation

A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 0.9 to 1.1, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis. 1. A lens drive device comprising:a movable portion including a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder holding the first coil and a lens and being movable to the double-pole magnet in a direction of the light axis;a fixed portion including a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis;a support portion configured to support the movable portion so that the movable portion is movable relatively to the fixed portion in the perpendicular direction to the light axis; anda nonmagnetic case provided with a through hole where light enters into the lens and attached to the fixed portion so as to cover the movable portion,wherein the double-pole magnet includes a first section having a first magnetization direction and opposing to the first coil and a second section having a second magnetization direction different from the first magnetization direction and opposing to the second coil, andL1/L2 is 0.9 to 1.1, where L1 is a length of the first section in the direction of the light axis, and L2 is a length of the second section in ...

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Номер записи: 8
01-08-2019 дата публикации

LENS DRIVE DEVICE

Номер: US20190235205A1
Автор: ICHIHASHI Shusuke
Принадлежит: TDK Corporation

A lens drive device includes a lens holder capable of holding at least one lens and a frame arranged around the holder and holding the holder relatively movable along a light axis of the lens. At least three stopper convex portions protruding toward the frame are formed on an outer circumference of the holder. Stopper concave portions housing each of the stopper convex portions are formed on the frame correspondingly to the stopper convex portions. A convex intersection corner between the first convex end surface and the convex side surface has a chamfering portion or an R curved surface portion to avoid touching a concave intersection corner between the concave bottom surface and the concave side surface. 1. A lens drive device comprising:a lens holder capable of holding a lens;a frame arranged around the lens holder and holding the lens holder relatively movable along a light axis of the lens; anda drive portion in a light axis direction moving the lens holder relatively to the frame along the light axis,wherein the lens holder is formed with a stopper portion opposing to the frame at a lower position in the light axis direction of the frame,the stopper portion is provided with an end surface capable of contacting the frame in the light axis, anda intersection corner between the end surface of the stopper portion and a side surface of the lens holder is configured not to touch the frame.2. The lens drive device according to claim 1 , wherein the frame has a polygonal ring shape.3. The lens drive device according to claim 2 , whereinthe stopper portion is opposed to the frame in the light axis direction at a position of a side of the polygonal ring shape of the frame.4. The lens drive device according to claim 1 , whereinan elastic member is arranged at an upper position of the light axis direction of the frame to bridge a front surface of the frame and a front surface of the lens holder.5. The lens drive device according to claim 4 , whereinthe frame is provided ...

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Номер записи: 9
30-08-2018 дата публикации

LENS DRIVING DEVICE

Номер: US20180246343A1
Автор: ICHIHASHI Shusuke
Принадлежит: TDK Corporation

The present invention is a lens driving device comprising first driving coils which relatively moves a lens holder against a base part along X axis perpendicular to an optical axis of a lens , and second driving coils which relatively moves a lens holder against a base part along Y axis perpendicular to an optical axis. At the base part , an opening part is formed where a part of the lens is to be inserted in a movable manner along the driving plane. The oblique diameter Dxy and Dxy of the opening part along the oblique direction positioned at the middle of X axis and Y axis, is larger than the first inner diameter Dx along X axis direction of the opening part , and also larger than the second inner diameter Dy along Y axis direction of the opening part . At the base part , the cylinder shape projection part is formed along the periphery of the opening part 110-. (canceled)11. A lens driving device comprising a first driving part allowing a lens part including at least one lens to relatively move against a base part along a first driving axis crossing with an optical axis of said lens , anda second driving part allowing said lens part to relatively move against said base along a second driving axis crossing with said optical axis of the lens and with said first driving axis, whereinan opening part is formed at said base part to which a part of said lens is inserted in a movable manner along a driving plane including said first driving axis and said second driving axis, andsaid opening part has an atypical shape in which a peripheral plane of said lens does not collide with an inner side plane of said opening part.12. The lens driving device as set forth in claim 11 , whereinan opening width of said opening part along an oblique direction positioned in the middle of said first driving axis and said second driving axis is wider than an opening width of said opening part along a direction of said first driving axis, and also wider than an opening width of said opening ...

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Номер записи: 10
27-10-2016 дата публикации

LENS DRIVING DEVICE

Номер: US20160313568A1
Автор: ICHIHASHI Shusuke
Принадлежит:

The present invention relates to the lens driving device comprising the spring . The spring comprises the holder installation parts to installed to the lens holder , the flame installation parts to installed to the flame , and the wire installation parts to installed to the suspension wire . The space is formed between a first step plane of the flame , and a part of the spring positioned between the flame installation part and the wire installation parts to ; and the vibration absorbing member is placed at the space . At the damper space between the damper table and the rear plane of the flame , the vibration absorbing member is filled. At the inner circumference plane of the flame , the depression part is formed which is opened towards the space, and the vibration absorbing member which is filled in the space is also continuously filled to the depression part 1. A lens driving device comprisinga lens holder capable of holding at least one lens,a resilient member holding said lens so to allow a relative movement against a flame along an optical axis of said lens,an optical axis direction driving part allowing a relative movement of said lens holder against said flame along said optical axis,a supporting part connecting said resilient member and a fixing part so that said flame is supported in a movable manner against said fixing part along a direction crossing with said optical axis, anda crossing direction driving part moving said flame against said fixing part along the direction crossing with said optical axis; whereinsaid resilient member comprisesa holder installation part installed to said lens holder,a flame installation part installed to said flame,a support installation part installed to said supporting part,a space is formed between said flame and a part of said resilient member which is positioned between said flame installation part and said support installation part, anda vibration absorbing member is placed in said space.2. The lens driving device as ...

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Номер записи: 11
27-10-2016 дата публикации

Lens driving device

Номер: US20160313569A1
Автор: Shusuke Ichihashi
Принадлежит: TDK Corp

The present invention is a lens driving device comprising first driving coils 30 a which relatively moves a lens holder 40 against a base part 10 along X axis perpendicular to an optical axis of a lens 100, and second driving coils 30 b which relatively moves a lens holder 40 against a base part 10 along Y axis perpendicular to an optical axis. At the base part 10, an opening part 12 is formed where a part of the lens 100 is to be inserted in a movable manner along the driving plane. The oblique diameter Dxy 1 and Dxy 2 of the opening part 12 along the oblique direction positioned at the middle of X axis and Y axis, is larger than the first inner diameter Dx along X axis direction of the opening part 12, and also larger than the second inner diameter Dy along Y axis direction of the opening part 12. At the base part 10, the cylinder shape projection part 14 is formed along the periphery of the opening part 12.

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Номер записи: 12
16-11-2017 дата публикации

Lens drive device

Номер: US20170329099A1
Автор: Shusuke Ichihashi
Принадлежит: TDK Corp

A lens drive device includes a lens holder capable of holding at least one lens and a frame arranged around the holder and holding the holder relatively movable along a light axis of the lens. At least three stopper convex portions protruding toward the frame are formed on an outer circumference of the holder. Stopper concave portions housing each of the stopper convex portions are formed on the frame correspondingly to the stopper convex portions. A convex intersection corner between the first convex end surface and the convex side surface has a chamfering portion or an R curved surface portion to avoid touching a concave intersection corner between the concave bottom surface and the concave side surface.

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Номер записи: 13
17-10-2019 дата публикации

Lens drive device and electromagnetic drive unit

Номер: US20190317298A1
Автор: Shusuke Ichihashi
Принадлежит: TDK Corp

A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 0.9 to 1.1, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.

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Номер записи: 14
04-07-2023 дата публикации

Lens drive device and electromagnetic drive unit

Номер: US11693212B2
Автор: Shusuke Ichihashi
Принадлежит: TDK Taiwan Corp

A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 0.9 to 1.1, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.

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Номер записи: 15
02-01-2024 дата публикации

Optical element driving mechanism having a position sensing assembly

Номер: US11860513B2
Автор: Shusuke Ichihashi
Принадлежит: TDK Taiwan Corp

A driving mechanism is provided. The driving mechanism includes a fixed portion, a movable portion movable relative to the fixed portion, a driving assembly used for driving the movable portion to move relative to the fixed portion, and a position sensing assembly for detecting the movement of the movable portion relative to the fixed portion. The driving assembly drives the movable portion by a control signal provided by a control assembly, and the driving assembly includes shape memory alloy. The control assembly receives a position signal provided by the position sensing assembly. The movable portion vibrates relative to the fixed portion at a frequency that is lower than a maximum frequency, and the maximum frequency is less than 10000 Hz.

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Номер записи: 16
05-06-2018 дата публикации

Lens driving device

Номер: US09989779B2
Автор: Shusuke Ichihashi
Принадлежит: TDK Corp

The present invention is a lens driving device comprising first driving coils 30 a which relatively moves a lens holder 40 against a base part 10 along X axis perpendicular to an optical axis of a lens 100 , and second driving coils 30 b which relatively moves a lens holder 40 against a base part 10 along Y axis perpendicular to an optical axis. At the base part 10 , an opening part 12 is formed where a part of the lens 100 is to be inserted in a movable manner along the driving plane. The oblique diameter Dxy 1 and Dxy 2 of the opening part 12 along the oblique direction positioned at the middle of X axis and Y axis, is larger than the first inner diameter Dx along X axis direction of the opening part 12 , and also larger than the second inner diameter Dy along Y axis direction of the opening part 12 . At the base part 10 , the cylinder shape projection part 14 is formed along the periphery of the opening part 12.

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Номер записи: 17