Contact type image sensor with a fiber array coated in part with

Details Contact type image sensor with a fiber array coated in part with Contact type image sensor with a fiber array coated in part with

1989-11-08

1991-04-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

25022720, 25022728, H01J 4014

Patent

active

050049054

ABSTRACT:
A contact type image sensor comprising a light-detecting element array formed on a substrate, a light source for irradiating an original to be read, and an optical fiber array disposed between said light-detecting element array and said original to be read, said optical fiber array being formed by laminating an optical fiber array member that is composed of optical fibers not coated with an absorber on an optical fiber array member that is composed of optical fibers coated with an absorber, said optical fibers being disposed between said light-detecting element array and said original to be read, and said light source being disposed at the light emission side of said optical fiber array, thereby attaining a precise irradiation of an original with light from a light source and reliably shuts off the leakage to maintain excellent resolution characteristics of the sensor.

REFERENCES:
patent: 3265892 (1966-08-01), Sheldon
patent: 4408230 (1983-10-01), Tamura et al.
patent: 4671612 (1987-06-01), Sakurai et al.
patent: 4689652 (1987-08-01), Shimada et al.
A. Yoshinouchi et al., Application of Optical Fiber Array to Contact-Type Image Sensors (1989) Japan IEMT Symposium.

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