Light beam scanning device

Details Light beam scanning device Light beam scanning device

1976-10-14

1978-04-18

Corbin, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350182, 358199, G02B 2717

Patent

active

040848817

ABSTRACT:
A prism anamorphic optical system is disposed in the path of deflected beam from a rotatable polygonal mirror or a galvano-mirror. This prism anamorphic optical system includes at least two prisms, so that different amounts of displacement of the deflected beam at each angle of deflection and in a direction perpendicular to the direction of deflection caused by the first of the prisms are corrected by the second and subsequent prisms, as viewed from the incidence side. Thus, a straight scanning line may be obtained.

REFERENCES:
patent: 3814945 (1974-06-01), Allnutt et al.

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