Radiation imagery chemistry: process – composition – or product th – Imaged product – Nonsilver image
Patent
1982-07-19
1984-02-14
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaged product
Nonsilver image
430 23, 430 28, 430147, 430152, 430157, 430177, 350126, G03C 300, G03C 518, G03B 2160
Patent
active
044317204
ABSTRACT:
An improved rear-projection viewing screen is disclosed which is characterized by having on the viewed front surface of a lenticulated transparent substrate, a single layer having image-transmitting areas and intervening light-absorbing areas. The improved screen according to the invention includes light-scattering and photographically formed light-absorbing elements in a common binder system in the image-transmitting areas and in the intervening light-absorbing areas. The light-scattering elements provide for the diffusion of the viewed image in the light-transmitting areas. The light-scattering elements in the light-absorbing areas are effective to scatter light falling on the front surface of the screen thereby improving contrast of pictures viewed on the screen.
REFERENCES:
patent: 1942841 (1931-12-01), Shimuzu
patent: 3598640 (1971-08-01), Bennett
patent: 3832032 (1974-08-01), Shimada
patent: 3981729 (1976-09-01), Saulnier
patent: 4149888 (1979-04-01), Loprest
patent: 4309073 (1982-01-01), Nishimura et al.
Dees Jos,e G.
Kittle John E.
Zenith Radio Corp.
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