US 11,655,953 B2
PBS-based ADB function adjustment method and intelligent vehicle light module therefor
Jie Zhang, Shanghai (CN); Shikun Dong, Shanghai (CN); Fan Meng, Shanghai (CN); Feiquan Li, Shanghai (CN); and Jiayuan Chen, Shanghai (CN)
Assigned to HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
Appl. No. 17/259,781
Filed by HASCO VISION TECHNOLOGY CO., LTD., Shanghai (CN)
PCT Filed May 27, 2019, PCT No. PCT/CN2019/088546
§ 371(c)(1), (2) Date Jan. 12, 2021,
PCT Pub. No. WO2020/010936, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 20181077191.X (CN), filed on Jul. 13, 2018; and application No. 201821113805.7 (CN), filed on Jul. 13, 2018.
Prior Publication US 2022/0373151 A1, Nov. 24, 2022
Prior Publication US 2022/0373151 A1, Nov. 24, 2022
Int. Cl. B60Q 1/00 (2006.01); F21S 41/64 (2018.01); F21S 41/143 (2018.01); F21S 41/255 (2018.01); F21S 41/657 (2018.01); F21Y 115/10 (2016.01); F21W 102/20 (2018.01)
CPC F21S 41/645 (2018.01) [B60Q 1/0023 (2013.01); F21S 41/143 (2018.01); F21S 41/255 (2018.01); F21S 41/657 (2018.01); F21W 2102/20 (2018.01); F21Y 2115/10 (2016.08)] 17 Claims
OG exemplary drawing
 
1. A Polarizing Beam Splitter (PBS)-based Adaptive Driving Beam (ADB) function adjustment method, adopting a camera-integrated intelligent vehicle light module which comprises an intelligent illumination light control system composed of a light source system and a light control element and an integrated intelligent vehicle light module composed of a photosensitive chip integrated circuit and an imaging lens group, wherein:
the intelligent illumination light control system comprises a PBS, a camera Complementary Metal-Oxide-Semiconductor (CMOS) chip and an imaging lens group, wherein the PBS is provided with a Liquid Crystal Display (LCD), a Liquid Crystal On Silicon (LCOS) chip or a Digital Mircomirror Device (DMD) chip opposite to the imaging lens group, the LCD is controlled through a liquid crystal technique, the LCOS chip is a reflective liquid crystal technique, the DMD chip is micromirror wafer technique, and the LCD, the LCOS chip and the DMD chip are used to realize a dark area;
one part of light rays emitted by the intelligent illumination light control system penetrate through the PBS and are irradiated on the imaging lens group to finally form an illumination light shape;
another part of the light rays emitted by the intelligent illumination light control system are reflected by the PBS in a direction opposite to the camera CMOS chip, so that light emitted by an illumination system is prevented from being irradiated onto the CMOS chip, which may otherwise disturb the CMOS chip;
ambient light enters the imaging lens group in a direction opposite to an illumination light path;
one part of the ambient light is reflected by the PBS to the photosensitive chip integrated circuit to form an information source, information about vehicles and pedestrians on a road is determined after analysis and processing by a computing system of the integrated circuit, and the intelligent illumination light control system is controlled to carry out ADB function adjustment and control;
a camera shares one lens or imaging lens group with a vehicle light, the intelligent illumination light control system and the PBS;
the other part of the light rays emitted by the intelligent illumination light control system are reflected by the PBS in the direction opposite to the camera CMOS chip, so that the illumination light rays are prevented from being irradiated onto the photosensitive chip, which may otherwise disturb the photosensitive chip.