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.:
Date of Patent:
Aug. 09, 2022
Filed:
May. 26, 2021
Applicant:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Inventors:
Toshihisa Hayami, Shizuoka, JP;
Yuki Usuda, Shizuoka, JP;
Assignee:
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 41/675 (2018.01); F21W 102/13 (2018.01);
U.S. Cl.
CPC ...
F21S 41/675 (2018.01); F21W 2102/13 (2018.01);
Abstract
An illumination apparatus generates illumination light. A patterning device includes a digital micromirror device (DMD) configured to spatially modulate and reflect the illumination light according to a pattern signal. A DMD controller generates the pattern signal. The DMD controller generates a refresh pattern signal for repeatedly turning on and off micromirrors in a period in which the DMD is set to the enable state and the illumination light is turned off.