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:
Nov. 24, 2015
Filed:
Nov. 19, 2012
Applicant:
Konica Minolta Opto, Inc., Tokyo, JP;
Inventors:
Akihiro Fujimoto, Toyokawa, JP;
Taisuke Oyanagi, Toyokawa, JP;
Assignee:
Konica Minolta Opto, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B32B 1/00 (2006.01); B23B 5/36 (2006.01); B23B 27/20 (2006.01); B29C 33/42 (2006.01); B29C 59/02 (2006.01); B29C 45/37 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00 (2013.01); B23B 5/36 (2013.01); B23B 27/20 (2013.01); B29C 33/42 (2013.01); B32B 1/00 (2013.01); B29C 45/37 (2013.01); B29C 2059/023 (2013.01); B29L 2011/00 (2013.01); Y10T 29/49996 (2015.01);
Abstract
A method for manufacturing an optical element including: a surface including a plurality of grooves arranged concentrically. Each of the grooves includes a bottom surface with a predetermined width, a side surface, and a curved surface with a predetermined curvature radius. The bottom surface extends in a radius direction of the grooves. The curved surface connects the bottom surface and the side surface.