Reflex-type screen

Details Reflex-type screen Reflex-type screen

2006-09-19

2006-09-19

Perkey, W. B. (Department: 2851)

Optical: systems and elements

Projection screen

Unitary sheet comprising plural reflecting areas

C359S455000, C359S443000

Reexamination Certificate

active

07110176

ABSTRACT:
A reflex-type screen for reflecting obliquely projected light from a projector to a front of the screen. The screen includes a light absorbing base material and a plurality of inclined planes disposed on the base material. The planes are arranged such that projected light do not enter non-projector side inclined planes, and the projector side and non-projector side planes alternate to form a saw-tooth shaped arrangement. A light reflecting white resin layer is disposed on the projector side planes to reflect light from the projector to the front of the screen. A transparent light diffusing layer including binding agent and diffusing agent is formed to cover the white resin layer and the base material, including all inclined planes. The non-projector side inclined planes absorbs incident light and the diffusing layer diffuses light reflected by the white resin layer.

REFERENCES:
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patent: 6609799 (2003-08-01), Myers
patent: 1329276 (1973-09-01), None
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patent: 2000-241888 (2000-09-01), None
patent: 2000-347297 (2000-12-01), None
patent: 2003-156799 (2003-05-01), None
Patent Abstracts of Japan, Publication No. 2000-347297 dated Dec. 15, 2000, 2 pgs.
Patent Abstracts of Japan, Publication No. 2000-241888 dated Sep. 8, 2000, 2 pgs.
Patent Abstracts of Japan, Publication No. 2003-156799 dated Apr. 30, 2003, 1 pg.
Patent Abstracts of Japan, Publication No. 11-044805 dated Feb. 16, 1999, 2 pgs.
Patent Act 1977: Search Report under Section 17 issued for GB0503362.6 mailed on Mar. 29, 2005, 1 page.

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