Title:
VEHICLE LIGHT SYSTEM BASED ON PBS BEAM SPLITTER
Document Type and Number:
WIPO Patent Application WO/2018/209715
Kind Code:
A1
Abstract:
A vehicle light system based on a PBS beam splitter, comprising a light source (1), a PBS beam splitter (3), a collimating lens set (2), an imaging lens set (5), an LCOS control chip (4), and a light path control unit (6). The collimating lens set (2) and the PBS beam splitter (3) are sequentially arranged in a light emission direction of the light source (1); the LCOS control chip (4) is disposed on a light path of an S wave reflected by a contact surface of the PBS beam splitter (3); the imaging lens set (5) is disposed on an emergent light path of the S wave modulated by the LCOS control chip (4) and transmitted through the contact surface of the PBS beam splitter (3); the light path control unit (6) is disposed on a light path of a P wave transmitted through the contact surface of the PBS beam splitter (3). The light path control unit (6) uses the P wave projected out of the PBS beam splitter (3) as dipped beam lighting or a part of dipped beam lighting, so that the utilization rate of light energy of the light source can be improved.
Inventors:
ZHANG JIE (CN)
Application Number:
PCT/CN2017/085301
Publication Date:
November 22, 2018
Filing Date:
May 22, 2017
Export Citation:
Assignee:
HASCO VISION TECH CO LTD (CN)
International Classes:
F21S41/64; F21W102/13; F21W107/10
Foreign References:
| US20160169469A1 | 2016-06-16 | |||
| CN105605507A | 2016-05-25 | |||
| CN106195671A | 2016-12-07 | |||
| CN105276479A | 2016-01-27 | |||
| JP2016184114A | 2016-10-20 |
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