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:
Jul. 07, 2009
Kazuhiro Arai, Yokohama, JP;
Jun-ichi Sakamoto, Yokohama, JP;
Junji Terada, Tokyo, JP;
Noriyuki Nakai, Machida, JP;
Kazuhiro Arai, Yokohama, JP;
Jun-ichi Sakamoto, Yokohama, JP;
Junji Terada, Tokyo, JP;
Noriyuki Nakai, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are an optical element and a method of producing an optical element in which sufficient adhesion with an upper layer can be secured without damaging spectral characteristics. The production method includes the step of forming a first structural body in which a space part and a structural part are alternately and repeatedly arranged, the step of forming an etching stopper layer on an upper part of the structural part, and the step of forming a second structural body on the etching stopper layer by etching.