Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate
2007-07-24
2007-07-24
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
C359S455000
Reexamination Certificate
active
11220653
ABSTRACT:
There is provided a transmission type screen that can suppress deterioration of image quality due to glare distortion of external light and the like that occurs on a screen surface while keeping a feeling (a glossy feeling of an image) as if a CRT-TV is directly viewed. The transmission type screen10is arranged by combining a plurality of screen members (for example, a lenticular lens sheet11and a Fresnel lens sheet12), which realize various optical functions such as transmission, diffusion, condensing and the like of light, with each other. A smooth surface having a surface roughness Ra of 0 μm≦Ra≦0.5 μm is formed on the viewer side surface of a nearest-to-viewer side screen member (for example, the lenticular lens sheet11) of the plurality of screen members, as well as the amount of warping D of the nearest-to-viewer side screen member (for example, the lenticular lens sheet11) is −10 mm≦D≦15 mm.
REFERENCES:
patent: 2005/0117213 (2005-06-01), Honda et al.
patent: A-05-204048 (1993-08-01), None
patent: A-07-248537 (1995-09-01), None
patent: A-08-137010 (1996-05-01), None
patent: A-2002-139800 (2002-05-01), None
patent: A-2002-169224 (2002-06-01), None
patent: A-2003-050427 (2003-02-01), None
patent: WO 98/32049 (1998-07-01), None
Dai Nippon Printing Co. Ltd.
Harrington Alicia M
Oliff & Berridg,e PLC
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