Optical scanner

Details Optical scanner Optical scanner

1988-09-22

1990-05-01

Arnold, Bruce Y.

350 65, G02B 2610

Patent

active

049213202

ABSTRACT:
An optical scanner is disclosed for scanning a light beam onto a receiving medium. The scanner includes a rotatable polygon for receiving a light beam from a source and for scanning the beam through a predetermined angle, and optical elements between the polygon and receiving medium for directing the beam to the receiving medium. In order to provide a very high resolution scanner which can be used to generate half-tone images, the optical elements include a first lens element having two spherical surfaces, a second lens element which has orthogonal cylindrical surfaces, and a cylindrical mirror.

REFERENCES:
patent: 3505658 (1970-04-01), Fan et al.
patent: 3946150 (1976-03-01), Grafton
patent: 4247160 (1981-01-01), Brueggemann
patent: 4274703 (1981-06-01), Fisli
patent: 4277128 (1981-07-01), Kawamura
patent: 4379612 (1983-04-01), Matsuoka et al.
patent: 4512625 (1985-04-01), Brueggemann
patent: 4796962 (1989-01-01), DeJager et al.
patent: 4818046 (1989-04-01), Kondo

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