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. 08, 2016
Filed:
Apr. 23, 2014
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Jun Murata, Osaka, JP;
Takamasa Tamura, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); B29D 11/00 (2006.01); G02B 1/118 (2015.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0215 (2013.01); B29D 11/0074 (2013.01); B29D 11/00346 (2013.01); G02B 1/118 (2013.01); G02B 3/00 (2013.01);
Abstract
A lens is obtained by injection molding. The lens includes a plurality of projections arranged on a surface at a pitch smaller than or equal to a predetermined value to reduce reflection of light with a wavelength equal to or greater than the pitch, and a gate mark formed on an outer periphery of the optical element in the injection molding. A peripheral portion of the surface includes a first region whose circumferential position corresponds to the gate mark, and a second region being adjacent to the first region. Axes of first projections in the first region are inclined more outward than axes of second projections in the second region.