Laser printing system with developable helicoid reflector

Details Laser printing system with developable helicoid reflector Laser printing system with developable helicoid reflector

1983-03-07

1985-01-22

Henry, Jon W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350448, 358293, G02B 2717

Patent

active

044948212

ABSTRACT:
Line scanning apparatus are especially compensated to limit beam divergence in one direction by embodying a specularly reflective developable helicoid. Beam divergence in the direction orthogonal to the aforementioned one direction is masked by a narrow slit extending longitudinally in the direction of the longitudinal center axis of the helicoid.

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Lectures on Classical Differential Geometry, by Dirk J. Struik, pp. 69-71, Addison-Wesley Publishing Company, Inc., 2nd Edition.

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