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:
Sep. 06, 2005
Filed:
Aug. 29, 2003
Makoto Honda, Shinjuku-ku, JP;
Katsunori Takahashi, Shinjuku-ku, JP;
Hideki Miyata, Shinjuku-ku, JP;
Katsunori Shintani, Shinjuku-ku, JP;
Yuko Mori, Shinjuku-ku, JP;
Toshie Chijiwa, Shinjuku-ku, JP;
Makoto Honda, Shinjuku-ku, JP;
Katsunori Takahashi, Shinjuku-ku, JP;
Hideki Miyata, Shinjuku-ku, JP;
Katsunori Shintani, Shinjuku-ku, JP;
Yuko Mori, Shinjuku-ku, JP;
Toshie Chijiwa, Shinjuku-ku, JP;
Abstract
A lens sheet capable of preventing reflection of extraneous light without decreasing extraneous light absorption, having extraneous light absorbers that can be readily formed by printing and are scarcely stained. The present invention also provides a rear projection screen including such a lens sheet. A rear projection screen has a Fresnel lens sheet and a lenticular lens sheet placed on the viewing side of the Fresnel lens sheet. The lenticular lens sheet has lenses formed on those portions of the light-emergent-side surface of the sheet-shaped substrate part through which light converged by other lenses pass, and extraneous light absorbers formed on those portions of the light-emergent-side surface of the sheet-shaped substrate part through which light converged by the other lenses does not pass. Each extraneous light absorber includes a black-colored binder resin and a number of light-diffusing particles subjected to coloring treatment, incorporated in the binder resin.