High-performance 400-DPI A4-size contact image sensor module for scanner and G4 fax applications

Details High-performance 400-DPI A4-size contact image sensor module for scanner and G4 fax applications High-performance 400-DPI A4-size contact image sensor module for scanner and G4 fax applications

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1527..361y&link_type=abstract

Proc. SPIE Vol. 1527, p. 361-367, Current Developments in Optical Design and Optical Engineering, Robert E. Fischer; Warren J. S

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Scientific paper

Recent development of a G4 fax and scanner requires a high-speed, high-resolution, and high- contrast second-generation image sensor. This paper describes a silicon butting contact image sensor (CIS) module which has been developed and produced to solve the problems encountered by using CCD image sensors. Due to the flexibility of the design, the CIS module can be made for the A6, A4, B4, or other paper sizes. This device can be operated at high speed (2 MHz or higher), high dynamic range (1000:1) and high resolution (400DPI). By adding a layer of color filter on top of the photosensor, it is also applicable for the color G4 facsimile and color scanner.

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