Laser scanning device

Details Laser scanning device Laser scanning device

1995-04-27

1997-02-18

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359208, 359216, 359217, 250236, G02B 2608

Patent

active

056046227

ABSTRACT:
In a scanning optical system, a light emitting device emits a beam to a deflection mirror. The beam is inclined in the direction of the auxiliary scanning, so that the optical axis of the beam incident to the deflection mirror intersects the rotational axis of the deflection mirror. The optical axis of the beam, when the beam reaches the center of a predetermined scanning angle zone, is orthogonal to a light reflection surface of the deflection mirror when seen from the auxiliary scanning direction. The deflected beam is reflected by a curved mirror and directed to an object surface through an anamorphic lens. The optical axis of the anamorphic lens is displaced with respect to the optical axis of the scanning optical system.

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