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. 19, 2006
Filed:
Aug. 12, 2004
Hajime Maruta, Niigata, JP;
Takahiro Koyanagi, Niigata, JP;
Masatoshi Niwa, Niigata, JP;
Arisawa Mfg. Co., Ltd., Joetsu, JP;
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.