Title:
車両用前照灯
Document Type and Number:
Japanese Patent JP6952541
Kind Code:
B2
Abstract:
An automotive headlight includes: a light source for emitting light; a polarization beam splitter for receiving a light flux from the light source, and dividing the light flux into a first polarization and a second polarization; a liquid crystal element disposed to receive the first polarization and the second polarization, divided by the polarization beam splitter; a phase shifter disposed on optical axis of one of the first polarization and the second polarization, and aligning polarization axis directions of the first polarization and the second polarization; and an output side polarizer disposed on output side of the liquid crystal element, wherein illumination regions corresponding to respective control electrodes in the liquid crystal element can be controlled to shield light.
Inventors:
Yasuo Toko
Ryutaro Owada
Yoshifumi Takao
Ryutaro Owada
Yoshifumi Takao
Application Number:
JP2017173953A
Publication Date:
October 20, 2021
Filing Date:
September 11, 2017
Export Citation:
Assignee:
Stanley Electric Co., Ltd.
International Classes:
F21S41/36; F21S41/60; F21V7/04; F21V9/14; G02B5/30; G02F1/13357
Domestic Patent References:
| JP2012069458A | ||||
| JP7199187A | ||||
| JP2006058615A |
Attorney, Agent or Firm:
Kimura Mitsuru
Keishiro Takahashi
Ukai Shinichi
Keishiro Takahashi
Ukai Shinichi