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Patent Searching and Data


Title:
OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/137329
Kind Code:
A1
Abstract:
An optical device of the present invention is characterized by comprising: a light emitting unit for emitting light into a target scene; a light receiving unit for receiving light reflected from the target scene; and a processor connected to the light emitting unit and the light receiving unit. The light emitting unit comprises: a light source array including a plurality of directional light sources; a diffraction optics-based light control element which divides the light emitted from the light sources; and a wide area lens for transmitting, to the target scene, the light divided after passing through the light control element, wherein the light control element is divided into a plurality of first unit regions, the target scene is divided into second unit regions corresponding to the first unit regions, and the light divided after passing through the first unit regions is emitted to the second unit regions corresponding to the first unit regions.

Inventors:
BANG HYUNGSEOK (KR)
LEE SANGKEUN (KR)
JEONG CHANSUNG (KR)
CHO YONGHO (KR)
Application Number:
PCT/KR2019/018827
Publication Date:
July 08, 2021
Filing Date:
December 31, 2019
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
G01S7/481; G01S7/4911; G02B3/00; G02B27/10
Foreign References:
KR20150076760A2015-07-07
KR20180013598A2018-02-07
KR20180053376A2018-05-21
KR20150052469A2015-05-14
US20150378197A12015-12-31
Attorney, Agent or Firm:
KBK & ASSOCIATES (KR)
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