Title:
OPTICAL UNIT AND VEHICULAR HEADLAMP
Document Type and Number:
WIPO Patent Application WO/2019/240177
Kind Code:
A1
Abstract:
This optical unit (10) is provided with: a light source (12); a first reflector (14) on which outgoing light (L) emitted from the light source and an electromagnetic wave given off by an electromagnetic wave generator are reflected in a first reflective region (R1) where the direction of reflection changes periodically; and a second reflector (16) on which first reflected light (L1) and first electromagnetic waves that have been reflected on the first reflector are reflected once again in a second reflective region (R2) where the direction of reflection changes periodically. The first reflector (14) is configured to scan the second reflective region (R2) with the first reflected light (L1) and the first electromagnetic waves. The second reflector (16) is configured to form a light distribution pattern by scanning with the second reflected light (L2) and to detect a circumjacent object by scanning with second electromagnetic waves.
Inventors:
KANAMORI AKITAKA (JP)
Application Number:
PCT/JP2019/023303
Publication Date:
December 19, 2019
Filing Date:
June 12, 2019
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21S41/675; F21S41/147; F21S41/153; F21S41/16; F21S41/33; F21S41/365; F21W102/13; F21Y115/10; F21Y115/20; F21Y115/30
Domestic Patent References:
| WO2011129105A1 | 2011-10-20 | |||
| WO2017104167A1 | 2017-06-22 | |||
| WO2012144144A1 | 2012-10-26 |
Foreign References:
| JP2014029858A | 2014-02-13 | |||
| JP2009224039A | 2009-10-01 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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