Rear projection screen for a color television projector
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYasutomo Funakoshi, Tamotsu Wakahata
Life of this patent
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Abstract
In a rear projection screen for a color television projector, having a plurality of lenticular lenses on one surface thereof, the contour of the cross-section of each lenticular lens is simply formed of a pair of linear portions and an arcuate portion interposed between the pair of linear portions. Thus, a mold for manufacturing the screen can be simply and readily machined so as to provide low cost screens, while the picture on the screen looks satisfactorily when viewed from various view points throughout a wide angle.
Claims14
A rear projection screen for a color television projector, comprising:
- (a) a body in the form of a sheet made of a transparent synthetic resin;
- and
- (b) a plurality of lenticular lenses integrally formed with said body, said plurality of lenticular lenses being arranged in parallel on one surface of said sheet, each of said plurality of lenticular lenses having a cross-section the contour of which is formed of a pair of linear portions and an arcuate portion interposed between the pair of linear portions, each of said linear portions having an inclination angle with respect to said sheet that is less than a total internal reflection angle defined by the material of said lenticular lenses.
A rear projection screen for a color television projector, comprising:
- (a) a body in the form of a sheet made of a transparent polycarbonate;
- and
- (b) a plurality of lenticular lenses integrally formed with said body, said plurality of lenticular lenses being arranged in parallel on one surface of said sheet, each of said plurality of lenticular lenses having a cross-section the contour of which is formed of a pair of linear portions and an arcuate portion interposed between the pair of linear portions.
A rear projection screen for a color television projector, comprising:
- (a) a body in the form of a sheet made of a transparent synthetic resin including a light-dispersing agent;
- and
- (b) a plurality of lenticular lenses integrally formed with said body, said plurality of lenticular lenses being arranged in parallel on one surface of said sheet, each of said plurality of lenticular lenses having a cross-section the contour of which is formed of a pair of linear portions and an arcuate portion interposed between the pair of linear portions.
Dependencies are inferred from the claim text.