Optical condenser system for light scanning apparatus

Details Optical condenser system for light scanning apparatus Optical condenser system for light scanning apparatus

1997-04-23

1998-06-30

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359206, 359207, 359216, 359662, 359793, G02B 2608

Patent

active

057742502

ABSTRACT:
An optical condenser system for a light scanning apparatus includes a first lens which is a single lens formed of plastic and a second lens which is a plano-convex lens formed of glass and convex toward the scanning surface. The first lens is concave toward a deflector of the light scanning apparatus and each side of the first lens is an aspheric surface defined by the following formula (6). The first and second lens satisfying the following formulae (1) to (5)

REFERENCES:
patent: 5541760 (1996-07-01), Iizuka

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