Optical scanning device

Details Optical scanning device Optical scanning device

1996-05-22

1998-05-05

Nguyen, Thong

Optical: systems and elements

Deflection using a moving element

359197, 359214, 359216, 347135, G02B 2608

Patent

active

057483523

ABSTRACT:
Light beam from a light source is changed by a diaphragm so that the center of the light beam is removed. The changed light beam is deflectedly scanned by a deflection device and passed through a condenser lens so as to expose the surface of a photosensitive object. A small spot of light beam of stable intensity is therefore obtained to be irradiated on the photosensitive object. Thus, the optical scanning device has a simple structure and attains high resolution.

REFERENCES:
patent: 4383262 (1983-05-01), Noguchi
patent: 4679057 (1987-07-01), Hamada
patent: 4852973 (1989-08-01), Durnin et al.
patent: 5121378 (1992-06-01), Hirose et al.
patent: 5161047 (1992-11-01), Tomita et al.
"Optics", Eugene Hecht, Adelphi University, Addison-Wesley Publishing Co., 1987, 1974, pp. 406-409.

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