Exposure device suitable for use in copying machine

Details Exposure device suitable for use in copying machine Exposure device suitable for use in copying machine

1986-04-15

1987-05-26

Moses, R. L.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 8, 362 11, 362346, G03B 2754

Patent

active

046680810

ABSTRACT:
An exposure device suitable for use in a copying machine includes a gutter-like mirror composed of an upper mirror and a lower mirror so that light projected from a light source onto the lower mirror is reflected to illuminate the surface of an original document in the pattern of a strip but light projected from the light source onto the upper mirror is reflected first onto the lower mirror and then reflected again by the lower mirror to illuminate the surface of the original document in the pattern of the strip. At least four small bulbs are arranged as the light source along the length of the gutter-like mirror and the envelopes of the small bulbs are frosted only at portions through which the internal filaments of the small bulbs face on the lower mirror.

REFERENCES:
patent: 3368071 (1968-02-01), Bentzman
patent: 3784304 (1974-01-01), Babin et al.
patent: 3947115 (1976-03-01), Hamaguchi
patent: 3982116 (1976-09-01), Sakuma
patent: 4143964 (1979-03-01), Ogura et al.
patent: 4239383 (1980-12-01), Peterson
patent: 4295186 (1981-10-01), Sugiura et al.
patent: 4333130 (1982-06-01), Mochizuki et al.
patent: 4518249 (1985-05-01), Murata et al.
patent: 4525059 (1985-06-01), Haramaki
patent: 4557592 (1985-12-01), Yokoyama et al.
patent: 4627704 (1986-12-01), Hamasaki et al.

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