Compact light collimator for a scanning contact printer

Details Compact light collimator for a scanning contact printer Compact light collimator for a scanning contact printer

1989-11-17

1990-10-23

Wintercorn, Richard A.

Photocopying

Including fiber optics

350 9628, 355 71, 355 84, G03B 2700, G03B 2710, G02B 600

Patent

active

049656210

ABSTRACT:
In a contact printer comprising means for supporting a film and an original in superposed relationship, means for providing a source of light for exposing the film through the original, and means for moving the light over the surface of the superposed film and original. The improvement comprises means carried by the light moving means for collimating the light, with the light collimating means comprising a plurality of parallel tubular members having a length to diameter ratio greater than about four and which extend between the light source and the film.

REFERENCES:
patent: 2198115 (1940-04-01), John
patent: 3163080 (1964-12-01), Miller
patent: 3183815 (1965-05-01), Kapany et al.
patent: 3277306 (1966-10-01), Blankenship
patent: 3514200 (1970-05-01), Bowker
patent: 4043653 (1977-08-01), Croce et al.
patent: 4158222 (1979-06-01), Cook
patent: 4265532 (1981-05-01), McIntosh
patent: 4576435 (1986-03-01), Nishioka
patent: 4765718 (1988-08-01), Henkes

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