Slit exposure projection device

Details Slit exposure projection device Slit exposure projection device

1987-01-08

1988-04-05

Hayes, Monroe H.

Photocopying

Including fiber optics

355 51, G03B 2748, G03B 2750, G03B 2770

Patent

active

047362251

ABSTRACT:
Disclosed is a projection device for projecting an image of an original on an object plane to an image plane for use in copying machines, facsimiles, image readers and the like. The projection device comprises a roof mirror and an optical member including a plurality of lens elements linearly aligned in the longitudinal direction of the slit. Each of the lens elements has a refractive surface and a reflective surface in facing relation with each other. At least one of said surfaces is toric in order to form an erecting real image in the longitudinal direction of the slit and an inverted real image in the lateral direction thereof.

REFERENCES:
patent: 3241438 (1966-03-01), Frank
patent: 3409354 (1968-11-01), Frank
patent: 3584950 (1971-06-01), Gundlach
patent: 3606535 (1971-09-01), Koizumi
patent: 3609024 (1971-09-01), Suzuki
patent: 3955888 (1976-05-01), Kakiuchi et al.
patent: 4427291 (1984-01-01), Day

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