Illumination system

Details Illumination system Illumination system

1979-11-15

1981-12-15

Moses, Richard L.

Photocopying

Including fiber optics

355 71, G03G 1500

Patent

active

043056504

ABSTRACT:
The elimination of strobing in an electrophotographic machine by altering the illumination profile of a projected image at the edges of an exposure aperture located near the photoreceptor surface. The illumination profile is altered by use of a transmission filter overlying the aperture and having a linearly tapered transmission profile at the edges of the aperture or using an aperture plate with saw toothed pattern edges defining the aperture.

REFERENCES:
patent: 3981577 (1976-09-01), Tsilibes
patent: 4080067 (1978-03-01), Massengeil
patent: 4090788 (1978-05-01), Massengeil
patent: 4226527 (1980-10-01), Lama et al.

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