公开(公告)号：US20200025350A1

公开(公告)日：2020-01-23

申请号：US16513731

申请日：2019-07-17

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Ryotaro OWADA

IPC: F21S41/64 ,  F21S41/27 ,  F21S41/33 ,  F21S41/135 ,  G02F1/1335

Abstract: A vehicular lamp includes: a light source; a projection optical system that projects light emitted from the light source forward; a liquid crystal element arranged at a rear focal point of the projection optical system; a first polarizing plate disposed in an optical path between the liquid crystal element and the projection optical system, for transmitting light of a specific polarization component; a condensing optical system that condenses the light toward the liquid crystal element; a polarizing beam splitter that transmits first light with one polarization component and reflects and separates second light with the other polarization component; a reflective optical system that reflects the first light toward the liquid crystal element; and a polarization rotation element that rotates a polarization direction of one of the first light and the second light to coincide with the other light in terms of a polarization direction thereof.

公开(公告)号：US20200088374A1

公开(公告)日：2020-03-19

申请号：US16616408

申请日：2018-05-16

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Shinya KOGURE ,  Ryotaro OWADA ,  Toshihiro SEKO ,  Takashi SUGIYAMA

IPC: F21S41/25 ,  F21S41/16 ,  F21S41/24 ,  F21V9/30

Abstract: Provided is a vehicular headlight that is capable of generating a clear light distribution pattern using a monolithic array light source of surface emitting lasers. The vehicular headlight 1a includes a VCSEL array 5, an image generation unit including a lens array 6 which outputs incident light from the VCSEL array 5 as collimated light so that an image of a light distribution pattern as an illuminance distribution is generated on an output side, a light distribution pattern forming unit 7 having an image forming surface on which the image is formed by the incident light from the image generation unit, and a projection unit 8 outputting the incident light from the light distribution pattern forming unit to an irradiation region in front of the vehicle.

公开(公告)号：US20240166122A1

公开(公告)日：2024-05-23

申请号：US18282996

申请日：2022-04-21

Applicant: Stanley Electric Co., Ltd.

Inventor： Ryotaro OWADA ,  Akihiro NAKATANI

IPC: B60Q1/08 ,  B60Q1/14 ,  H04N23/57

CPC classification number: B60Q1/08 ,  B60Q1/14 ,  H04N23/57

Abstract: The present disclosure provides a vehicle light fixture system capable of controlling an optical axis of a vehicle light fixture, without preparing a dedicated light source. A vehicle light fixture system including: circuitry configured to detect a position of a masking target object present in front of a vehicle; set, based on the position of the masking target object, a non-illumination area in which the masking target object is not illuminated; control the vehicle light fixture unit to illuminate an illumination area other than the non-illumination area; store in advance a position of a reference spot pattern that is formed, on a screen disposed ahead of the vehicle, by light emitted from the vehicle light fixture unit installed on the vehicle, in a state in which an optical axis is aligned with a designed optical axis; calculate a misalignment amount; and store the misalignment amount.

公开(公告)号：US20230392765A1

公开(公告)日：2023-12-07

申请号：US18032870

申请日：2021-10-06

Applicant: Stanley Electric Co., Ltd.

Inventor： Ryotaro OWADA ,  Yasuo TOKO

IPC: F21S41/64 ,  F21S41/25 ,  F21S41/147 ,  F21S41/365

CPC classification number: F21S41/645 ,  F21S41/25 ,  F21S41/147 ,  F21S41/365

Abstract: In a vehicular lamp, a polarization rotation element is disposed only in an optical path of second light from a second reflector toward a PBS, first light and the second light condensed toward a liquid crystal element are condensed at a first condensing point in common, the liquid crystal element is located at the first condensing point, the second light reflected by the PBS is condensed at a second condensing point deviated from the optical path of the light from a first reflector toward the PBS and the optical path of the second light from the second reflector toward the PBS.

公开(公告)号：US20220341559A1

公开(公告)日：2022-10-27

申请号：US17761797

申请日：2020-09-14

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Yasuo TOKO ,  Ryotaro OWADA

IPC: F21S41/64 ,  F21S41/25 ,  B60Q1/14

Abstract: To reduce uneven brightness of light irradiated from a vehicle lighting system. The system includes a lamp unit and a control unit where the lamp unit includes: a light source that emits light; a liquid crystal element using the light emitted from the light source to form irradiation light; and a lens projecting the irradiation light; where the light from the light source enters the element at an angle including a direction inclined from the normal of a light incident surface of the element; where the light incident surface has a first region in which most light enters from a viewing direction of the element and a second region in which most light enters from other directions, and where the control unit drives the element by setting a first voltage of the first region to be low and setting a second voltage of the second region to be high.

公开(公告)号：US20190360653A1

公开(公告)日：2019-11-28

申请号：US16411159

申请日：2019-05-14

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Yasuo TOKO ,  Ryotaro OWADA ,  Yoshifumi TAKAO

IPC: F21S41/135 ,  F21S41/64 ,  F21S41/255 ,  F21S41/32

Abstract: To reduce the optical members and the complexity of optical design. A vehicular lamp including: a light source; a light collecting member; a first polarizer advancing in a first direction a first component of the light, and advancing in a second direction a second component; a liquid crystal element disposed on one side of the first polarizer in the first direction; a second polarizer disposed on one side of the liquid crystal element in the first direction; a projection lens disposed on one side of the second polarizer in the first direction and projecting the first component to the front of an own vehicle; a reflecting member for reflecting the second component; where the first component is focused at a first focal point, the second component of the light is focused at a second focal point, and the liquid crystal element is disposed corresponding to the first focal point.