Apparatus for reading an original surface by illuminating it wit

Details Apparatus for reading an original surface by illuminating it wit Apparatus for reading an original surface by illuminating it wit

1981-12-14

1985-04-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358293, H01J 516

Patent

active

045146268

ABSTRACT:
An apparatus for reading an original surface by illuminating it with a slit-like light beam includes a fixed linear light source, a cylindrical parabolic mirror fixedly provided so that the focal line position thereof is coincident with the linear light source, the light beam from the linear light source being directed in a predetermined direction by the parabolic mirror, a cylindrical scanning mirror disposed so that the generating line direction thereof is coincident with the generating line direction of the cylindrical parabolic mirror, the cylindrical scanning mirror condensing the light beam from the cylindrical parabolic mirror in a slit-like form on the original surface and being moved along the original surface to thereby illuminate the entire area of the original surface, and an optical system movable with the cylindrical scanning mirror to read the light beam scattered by the original surface, the optical system includes a line sensor array and optical means for directing the scattered light to the line sensor array.

REFERENCES:
patent: 2989586 (1961-06-01), Beck et al.
patent: 4245259 (1981-01-01), Pick
patent: 4321627 (1982-03-01), Hooker, III et al.
patent: 4327287 (1982-04-01), Saito et al.

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