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:
Mar. 26, 2024
Filed:
Jun. 29, 2020
Dai Nippon Printing Co., Ltd., Tokyo, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Abstract
A lighting device () include a light source () that emits coherent light, a scanner () that causes the coherent light emitted from the light source to move, a first optical system () that regulates an optical path of the coherent light from the scanner, a first optical member () that causes the coherent light from the first optical system to diffuse, and a second optical system () that regulates an optical path of the coherent light from the first optical member. A lighting zone (LZ) on a plane of projection (PP) is illuminated with the coherent light emitted from the second optical system. An irradiance [W/m2] in a plane orthogonal to an optical axis of the coherent light irradiated on the lighting zone is non-discrete.