Optical scanning system

Details Optical scanning system Optical scanning system

1975-05-29

1977-03-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358200, 358208, 338292, H01J 314

Patent

active

040103641

ABSTRACT:
A document to be scanned is placed on a fixed transparent cylindrical platen and a mirror is totatable about the axis of the platen. A linear or single line cathode ray tube is fixed in position to produce a light beam which is reflected from the mirror onto the document and moves along the surface of the document in a main scan direction. A light receiving unit comprising a fibre optic bundle and a photoelectric generator is arranged parallel to the main scan direction to receive the light beam reflected from the document. Drive means are arranged to rotate the mirror and move the receiving unit so that the light beam is displaced in the subscan direction perpendicular to the main scan direction and the receiving unit is moved in synchronism therewith.

REFERENCES:
patent: 3235660 (1966-02-01), Treseder et al.
patent: 3273446 (1966-09-01), Goetz et al.
patent: 3325594 (1967-06-01), Goldhammer et al.
patent: 3758715 (1973-09-01), Buck et al.
patent: 3781078 (1973-12-01), Wildhaber
patent: 3845239 (1974-10-01), Granzow et al.
patent: 3886371 (1975-05-01), Lloyd

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