Laser beam scanning apparatus

Details Laser beam scanning apparatus Laser beam scanning apparatus

1995-09-07

1998-03-10

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359207, 359212, 359216, 359900, G02B 2608

Patent

active

057267910

ABSTRACT:
A laser beam scanning apparatus used for scanning a surface of a photoreceptor in an image forming apparatus. In the laser beam scanning apparatus, the laser beam emitted from a semiconductor laser is formed into a bundle of parallel rays by an objective lens, thereafter is converged by a converging lens immediately in front of a deflector such as a polygonal mirror. The converged laser beam is deflected by the polygonal mirror, and is concentrated on a beam receiving surface by scanning lenses.

REFERENCES:
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patent: 5033806 (1991-07-01), Tomita et al.
patent: 5052767 (1991-10-01), Sugata et al.
patent: 5111219 (1992-05-01), Makino
patent: 5128795 (1992-07-01), Endou et al.
patent: 5204769 (1993-04-01), Matsumoto et al.
patent: 5245462 (1993-09-01), Kanai et al.

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