Flying spot scanner for laser printer

Details Flying spot scanner for laser printer Flying spot scanner for laser printer

1982-02-25

1984-03-06

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358293, 358347, H04N 124

Patent

active

044357338

ABSTRACT:
A flying spot scanning system adapted for a laser printer is characterized in that a laser generator provides a laser beam having a cross section of an ellipse whose longitudinal axis is defined by the surface of the laser generator emitting the laser beam, a first lens receives and passes through the laser beam having the elliptic cross section toward a laser reflector, a second lens receives the laser beam having the elliptic cross section from the laser reflector, the laser beam along a direction orthogonal to the surface of the laser generator being incident upon a longitudinal side of the second lens which modifies the laser beam to a cross section of an approximate circle to a substantially focused spot on the surface of a light sensitive medium. Preferably, the first lens comprises an axially symmetrical focus lens and the second lens comprises a cylindrical lens.

REFERENCES:
patent: 3946150 (1976-03-01), Grafton
patent: 4034408 (1977-07-01), Starkweather
patent: 4040096 (1977-08-01), Starkweather
patent: 4044197 (1978-04-01), Starkweather
patent: 4213157 (1980-07-01), DeBenedictis
patent: 4253724 (1981-03-01), Minoura

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