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:
Jan. 27, 2015
Filed:
Jun. 15, 2012
Applicants:
Haruki Kamiyama, Osaka, JP;
Hideaki Fujita, Osaka, JP;
Kazushi Fujioka, Osaka, JP;
Hiroki Okuno, Osaka, JP;
Inventors:
Haruki Kamiyama, Osaka, JP;
Hideaki Fujita, Osaka, JP;
Kazushi Fujioka, Osaka, JP;
Hiroki Okuno, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/08 (2006.01);
U.S. Cl.
CPC ...
G02B 3/08 (2013.01);
Abstract
A Fresnel lens includes an incident surface that is flat, and a prism-forming surface that has a plurality of prisms, the prism-forming surface being provided on the side of the Fresnel lens opposite to the incident surface. Each of the prisms has a converging surface that is located on the side away from the optical axis of the Fresnel lens.