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:
Feb. 15, 2011
Filed:
Jan. 23, 2007
Applicant:
Masakuni Iwanaga, Hamura, JP;
Inventor:
Masakuni Iwanaga, Hamura, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); G03B 21/20 (2006.01); G02B 3/02 (2006.01); G02B 3/06 (2006.01); G02B 13/18 (2006.01); F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light source unit includes a light emitting element, a substrate on which the light emitting surface is disposed, a sealing portion which transmits light from the light emitting surface, and a collimator lens having an inverted truncated hexagonal pyramid shape for forming light emitted from the sealing portion into a bundle of parallel rays of light, the sealing portion having two or more convexly curved surfaces which project in a direction in which light is emitted therefrom.