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. 28, 1998
Filed:
Jun. 03, 1997
Hideki Miyata, Tokyo, JP;
Makoto Honda, Tokyo, JP;
Abstract
A transmission type projection screen is provided with a transparent film attached adhesively to only opaque or shading parts formed on top surfaces of ridges provided on the front surface of a lens sheet. The lens sheet is provided on its rear surface with a plurality of lenses for condensing light projected by a light source. The shading parts do not receive the light condensed by the plurality of lenses. The film protects the front surface of the lens sheet of the screen, and prevents scattering of the lens sheet in fragments when the lens sheet is cracked.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile