Laser scanner with curved anamorphic mirror

Details Laser scanner with curved anamorphic mirror Laser scanner with curved anamorphic mirror

1995-08-30

1997-12-16

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359205, 359869, 347257, 347260, G02B 2608

Patent

active

056991800

ABSTRACT:
A laser beam is projected from a laser oscillator 1 and converged by a condenser lens 2. The laser beam converged by the condenser lens 2 is reflected in any arbitrary direction by a scanning mirror 4 which is rotated by scanning means 3. The laser beam is linearly moved. The laser beam is reflected by a curved surface reflecting mirror 5 which is formed in a spherical surface in the primary scanning direction of the laser beam and an ellipsoid in the secondary scanning direction so that the scanned surface is scanned at a substantially predetermined speed.

REFERENCES:
patent: 4759593 (1988-07-01), Kessler
patent: 4918702 (1990-04-01), Kimura
patent: 5038156 (1991-08-01), Kuroda et al.
patent: 5233454 (1993-08-01), Sakuma et al.
patent: 5301060 (1994-04-01), Niikawa et al.
patent: 5373390 (1994-12-01), Sakoma
patent: 5381438 (1995-01-01), Guo et al.
Naumann/Schroder, Bauelemente Der Optik, Taschenbuch der technischen Optik Munich, Hanser Verlag (1987), pp. 267-273.
Patent Abstracts of Japan, vol. 17, No. 566, P-1629, Oct. 14, 1993, abstracting Japanese unexamined application JP 5-164 981-A, Atsumi/Ricoh Co. Ltd., published 29 Jun. 1993.

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