Title:
車両用灯具システム
Document Type and Number:
Japanese Patent JP7294970
Kind Code:
B2
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.
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Inventors:
Yasuo Togo
Ryutaro Owada
Ryutaro Owada
Application Number:
JP2019171083A
Publication Date:
June 20, 2023
Filing Date:
September 20, 2019
Export Citation:
Assignee:
Stanley Electric Co., Ltd.
International Classes:
B60Q1/14; F21V9/14; F21V9/40; G02F1/13; G02F1/1347
Domestic Patent References:
| JP2019128449A | ||||
| JP2007026512A | ||||
| JP2003107530A |
Foreign References:
| WO2011105619A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Mutsuki Partners
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