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:
Sep. 20, 2022
Filed:
Jan. 28, 2020
Applicant:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 1/00 (2006.01); B60Q 1/16 (2006.01); F21S 41/20 (2018.01); F21S 41/64 (2018.01); F21S 41/675 (2018.01); G03H 1/30 (2006.01); G03H 1/22 (2006.01); G03H 1/32 (2006.01); F21S 41/16 (2018.01); F21S 41/365 (2018.01); B60Q 1/14 (2006.01); B60Q 1/24 (2006.01); G03B 21/20 (2006.01); B60Q 1/50 (2006.01); G03H 1/02 (2006.01);
U.S. Cl.
CPC ...
B60Q 1/16 (2013.01); B60Q 1/0035 (2013.01); B60Q 1/14 (2013.01); B60Q 1/24 (2013.01); F21S 41/16 (2018.01); F21S 41/285 (2018.01); F21S 41/365 (2018.01); F21S 41/645 (2018.01); F21S 41/675 (2018.01); G03H 1/2249 (2013.01); G03H 1/2286 (2013.01); G03H 1/30 (2013.01); G03H 1/32 (2013.01); B60Q 1/50 (2013.01); B60Q 2400/50 (2013.01); G03B 21/2033 (2013.01); G03H 2001/0232 (2013.01); G03H 2001/2218 (2013.01); G03H 2001/2231 (2013.01); G03H 2001/2234 (2013.01); G03H 2001/2271 (2013.01); G03H 2001/2273 (2013.01); G03H 2001/2284 (2013.01); G03H 2001/2292 (2013.01); G03H 2210/20 (2013.01); G03H 2222/18 (2013.01); G03H 2222/34 (2013.01); G03H 2225/31 (2013.01); G03H 2225/55 (2013.01); G03H 2227/03 (2013.01); G03H 2227/05 (2013.01); G03H 2270/22 (2013.01);
Abstract
An illumination device has a coherent light source that emits coherent light beam, and an optical device that diffuses the coherent light beam, wherein the optical device comprises a first diffusion region that diffuses the coherent light beam to illuminate a first area, and a second diffusion region that diffuses the coherent light beam to display predetermined information in a second area.