Title:
LIGHT CONTROL DEVICE AND LIGHT CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/124414
Kind Code:
A1
Abstract:
This light control device is provided with a light source, a light condensing part, and an optical path control part. The light source emits light. The light condensing part condenses the light emitted from the light source, and irradiates an object therewith. The optical path control part is disposed between the light source and the light condensing part, and changes the irradiation direction of the light to the object, by changing the position of a light-transmitted portion thereof in a plane perpendicular to the optical axis of the light.
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Inventors:
AKASHI RYUICHI (JP)
YAMAKABE RYO (JP)
OGINO YUKA (JP)
TOIZUMI TAKAHIRO (JP)
FUNAYAMA CHISATO (JP)
CHONO KEIICHI (JP)
TSUKADA MASATO (JP)
YAMAKABE RYO (JP)
OGINO YUKA (JP)
TOIZUMI TAKAHIRO (JP)
FUNAYAMA CHISATO (JP)
CHONO KEIICHI (JP)
TSUKADA MASATO (JP)
Application Number:
PCT/JP2019/049226
Publication Date:
June 24, 2021
Filing Date:
December 16, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04N5/235; G01B11/00; G02B26/08; G02F1/13; G03B15/02
Foreign References:
| JP2008185717A | 2008-08-14 | |||
| JPS62189044A | 1987-08-18 | |||
| JP2015108582A | 2015-06-11 | |||
| JP2009204734A | 2009-09-10 |
Attorney, Agent or Firm:
NAKAMURA, Toshinobu et al. (JP)
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