Gradient intensifying screen

Details Gradient intensifying screen Gradient intensifying screen

1987-05-22

1988-09-20

Howell, Janice A.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

378185, G01J 158

Patent

active

047728035

ABSTRACT:
A gradient intensifying screen comprising a support, a fluorescent layer formed on the support and a transparent protective layer formed on the fluorescent layer, characterized in that at least a part of the transparent protective layer is dyed with a dyestuff so that the light transmission of the transparent protective layer is partially varied.

REFERENCES:
patent: 2820146 (1958-01-01), Kunes
patent: 3665191 (1972-05-01), Moody
patent: 4362944 (1982-01-01), Sukuzi et al.
patent: 4368390 (1983-01-01), Takahashi et al.

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