Raster scanning apparatus

Details Raster scanning apparatus Raster scanning apparatus

1982-03-31

1983-10-11

Moses, R. L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

355 8, 358293, H04N 104, G03G 1528

Patent

active

044096240

ABSTRACT:
A raster input scanner incorporating a scanning array, a platen for supporting documents to be scanned, a lens, and an illuminator. The lens is supported for micro movement in close proximity to the array, such movement being imparted by a linear motor. In one embodiment, the illuminator comprises a stationary light source with oscillating mirror for sweeping a wedge-like beam of light across the platen in synchronism with movement of the lens to progressively illuminate the document being scanned. A park position is provided for the lens and illuminator and a document feeder provided to transport the document to be scanned across a scan slit provided in the platen in an alternate operating mode.
In a second embodiment, the illuminator comprises a lamp cavity reciprocable along a path parallel to the platen to progressively illuminate the platen.

REFERENCES:
patent: 4149091 (1979-04-01), Crean et al.
patent: 4150873 (1979-04-01), Dali
patent: 4321627 (1982-03-01), Hooker et al.

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