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:
Jul. 07, 2026
Filed:
Oct. 05, 2023
Applicant:
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Inventors:
Keiji Tsunetomo, Sagamihara, JP;
Satoru Kusaka, Setagaya-ku, JP;
Assignee:
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 19/00 (2006.01); G02B 1/04 (2006.01); G02B 5/02 (2006.01); G02B 9/30 (2006.01); G02B 27/09 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); G02B 5/021 (2013.01); G02B 9/30 (2013.01); G02B 27/0916 (2013.01);
Abstract
An illumination device includes: a light source that emits parallel light or divergent light; a diffusion element that receives the light emitted from the light source and emits the light at a diffusion angle of 50° or more and 110° or less; and a lens group that has negative power, receives the light from the diffusion element by a first surface, and emits the light from a second surface at a light distribution angle of 140° or more.