Scanning illuminator

Details Scanning illuminator Scanning illuminator

1981-07-09

1982-09-21

Moses, Richard L.

Photocopying

Including fiber optics

355 1, 355 11, 355 66, 355 70, 362 32, 362346, G03G 1528

Patent

active

043504337

ABSTRACT:
A scanning illuminator suitable for use in high speed copying machines is adapted to compensate the distribution of loss in light quantity with respect to an imaging lens due to the so-called Cos.sup.4 law in the scanning direction and includes fixed sources of light. The scanning illuminator is characterized by illuminating systems disposed symmetrically relative to an original supporting area, each illuminating system being adapted for illuminating the opposite end areas of an original by a portion of light beam from the fixed source of light adjacent one end of the original, especially the light beam portion emitted and bled backward of the light source, the illuminating system having at least one rotating or translating scan mirror for scanning the illuminating light beam.

REFERENCES:
patent: 3586849 (1971-06-01), Starkweather
patent: 3669538 (1972-06-01), Fowler
patent: 4154500 (1979-05-01), Funato et al.
patent: 4232964 (1980-11-01), Nodov et al.
patent: 4259711 (1981-03-01), Mochizuki

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