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. 20, 2012
Filed:
Sep. 26, 2008
Katsutoshi Kondou, Chiyoda-ku, JP;
Susumu Murata, Chiyoda-ku, JP;
Junichiro Ichikawa, Chiyoda-ku, JP;
Katsutoshi Kondou, Chiyoda-ku, JP;
Susumu Murata, Chiyoda-ku, JP;
Junichiro Ichikawa, Chiyoda-ku, JP;
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an optical element which includes a support substrate and a thin plate of single crystal stacked on the support substrate through a thermoplastic adhesive, having the advantages of easily regulating the phase of light waves and restoring the regulated state to the original state. The optical element includes a support substrateand a thin plateof single crystal stacked on the support substratethrough a thermoplastic adhesive. The optical characteristics of the optical element are regulated by applying stress within an elastic limit to at least a part of the thin plate in a state where the thermoplastic adhesive is softened by heating the optical element, forming a concavo-convex partin the thin plate, and then cooling the optical element to fix the concavo-convex part.