Image sensor covered by a protective film and an organic film to

Details Image sensor covered by a protective film and an organic film to Image sensor covered by a protective film and an organic film to

1996-02-01

1997-12-30

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250226, 2502081, 358300, H01J 4014, G01J 334

Patent

active

057033552

ABSTRACT:
In a monochrome sensor, a sensor unit is covered with a protective film, and a light-transmitting organic film is formed on this protective film. Consequently, ripples in the spectral sensitivity characteristics are reduced. Even if the positions of the peaks and valleys of these ripples vary due to variations in the thicknesses of the protective film and the organic film or due to effective variations in these film thicknesses caused by the difference in the incident angle of light, a variation in the sensitivity at a given wavelength is small. This results in a small variation in the wavelength at which the maximum value of the spectral sensitivity is obtained and a small variation in the sensitivity derived from the difference in the incident angle of light.

REFERENCES:
patent: 4395629 (1983-07-01), Sasano et al.
patent: 4908718 (1990-03-01), Shimada
patent: 5233181 (1993-08-01), Kwansnick et al.
patent: 5288989 (1994-02-01), Ishaque et al.

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