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:
Dec. 06, 2011
Filed:
May. 15, 2009
Hirosi Kitano, Hyogo, JP;
Takayuki Kimoto, Osaka, JP;
Takaaki Tanaka, Osaka, JP;
Kazuya Chiba, Osaka, JP;
Hirosi Kitano, Hyogo, JP;
Takayuki Kimoto, Osaka, JP;
Takaaki Tanaka, Osaka, JP;
Kazuya Chiba, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A transmissive screen includes, sequentially from a projection side, a Fresnel lens having a condensing function, a diffusion plate for diffusing incident light, and a front-surface protective panel disposed facing the diffusion plate across an air flow layer of a predetermined interval. The front-surface protective panel partially absorbs visible light, and the visible light absorbance of the front-surface protective panel is made the highest compared with the Fresnel lens and the diffusion plate.