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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12690110 B1

PDFFull Text
Date of Patent:
Jul. 21, 2026

Filed:

Jul. 26, 2024

Illumination device

Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Kazunori Yamaguchi, Tokyo, JP;

Hiroyuki Wakana, Tokyo, JP;

Takayuki Imai, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Raymond R Chai

Int. Cl.
CPC ...
H05B 47/105 (2020.01); F21V 9/40 (2018.01); F21V 33/00 (2006.01); G02F 1/1347 (2006.01); H05B 47/175 (2020.01); H05B 47/19 (2020.01);
U.S. Cl.
CPC ...
H05B 47/105 (2020.01); F21V 9/40 (2018.02); F21V 33/0052 (2013.01); G02F 1/1347 (2013.01); H05B 47/19 (2020.01); H05B 47/1965 (2024.01);
Abstract

An illumination device includes a light source, a light adjustment device configured to control a light distribution angle of light emitted from the light source, and a controller configured to control the light source and the light adjustment device. The controller includes a storage configured to hold information indicating a correspondence relation between an irradiation area calculated based on a light distribution angle command value and an irradiation area ratio to a predetermined reference irradiation area, a light emission intensity generator configured to generate light emission intensity of the light source based on the information, and a driver configured to drive the light source based on the light emission intensity.

Find Patent Forward Citations

Yamaguchi, Kazunori. (2026). Illumination device (U.S. Patent No. 12690110). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12690110

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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