Compact erect optical imaging copier system and method

Details Compact erect optical imaging copier system and method Compact erect optical imaging copier system and method

1978-04-24

1979-09-25

Wintercorn, Richard A.

Photocopying

Including fiber optics

355 50, G03B 2700, G03B 2748, G03B 2750

Patent

active

041689003

ABSTRACT:
An erect optical imaging system for copying apparatus and method of producing the same is provided. A first pair of array sets of thick object lenses is optically aligned with a second pair of array sets of thick relay lenses to provide a scan line of a plurality of optical paths across an object surface. The refractive powers of the first set of lenses produce a real image in a space between the lens sets and an erect image on an image surface. Each array set comprises two parallel but offset rows of lens elements to provide an overlapping field angle. The use of the thick lenses helps eliminate vignetting problems. Spherical aberration and field curvature is controlled by minimizing the aperture opening of each set of lenses to 4mm.sup.2. The lenses can be made by either molding plastic or by individually grinding square glass bars. Demagnification can be achieved with the use of spherical optical path compensators.

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patent: 3836249 (1974-09-01), Weber
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