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. 04, 2000
Filed:
Mar. 11, 1998
Kenji Nishiguchi, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An optical element includes a transparent substrate having a main surface, a first birefringent photosensitive film arranged on a first region of the main surface such that a slow axis or a fast axis is aligned with a prescribed first direction, and a second birefringent photosensitive film formed on a second region different from the first region of the main surface such that the slow axis or the fast axis is aligned with a prescribed second direction different from the first direction. The first and second directions are different by 90.degree. (.+-.20.degree., more preferably, .+-.10.degree.). An image display device employing the optical element further includes an image forming device such as a liquid crystal display device, and with the optical element arranged on an image display screen, stereoscopic imaging is possible.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile