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:
Jul. 18, 2017
Filed:
Feb. 21, 2014
Sony Corporation, Tokyo, JP;
Shunichi Kajiya, Kanagawa, JP;
Hiroshi Tazawa, Kanagawa, JP;
Rie Tsubo, Kanagawa, JP;
Kazuya Hayashibe, Kanagawa, JP;
Hiroshi Tanaka, Kanagawa, JP;
Toru Yatabe, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical unit having an antireflection function includes a wave surface having a wavelength equal to or shorter than a wavelength of visible light. The wave surface has a curved plane which curves in a recessed shape between an apex portion and a bottom portion of the wave surface. An inflection point of an area of a cross section obtained by cutting through the wave surface in a plane perpendicular to a direction of vibration of the wave surface is positioned toward the bottom portion of the wave surface from a center of the vibration.