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. 19, 2002
Filed:
Jun. 07, 2000
Katsuji Horiuchi, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A liquid crystal lens comprises a biconcave lens and a pair of transparent flat plates arranged before and behind the lens. The biconcave lens has a pair of concave principal surfaces covered with transparent electrodes, a flat portion on its outer periphery, and an electrode extending across the flat portion and connecting the transparent electrodes. Each of the transparent flat plates has a flat principal surface covered with a transparent electrode, the surface facing the concave principal surface, a flat portion on its outer periphery, and an electrode extending across the flat portion and connected to the transparent electrode. The biconcave lens and the pair of transparent flat plates are cemented to one another in a spaced manner by sealants with their respective flat portions flush with one another. Liquid crystals are stored individually in spaces defined between the lens and the flat plates.