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:
Apr. 05, 2005
Filed:
Apr. 05, 2002
Toru Udaka, Kanagawa, JP;
Keiichi Nito, Tokyo, JP;
Toshiharu Yanagida, Tokyo, JP;
Masaru Kawabata, Tokyo, JP;
Toru Udaka, Kanagawa, JP;
Keiichi Nito, Tokyo, JP;
Toshiharu Yanagida, Tokyo, JP;
Masaru Kawabata, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A light control device and an imaging device suitable for the effective and stabilized driving of a Guest-Host type liquid crystal element. A light control device () which is provided with a light controlling GH cell () and a UV cut filter () provided on the light incident side of the GH cell (), and which is therefore reduced significantly in the quantity of ultraviolet ray applied to the GH cell (), thereby preventing the photodecompositon or photodegradation of materials constituting a liquid crystal layer in the GH cell (); and an imaging device such as a CCD camera () having this light control device disposed on the optical path thereof.