Laser scanning optical system

Details Laser scanning optical system Laser scanning optical system

1998-08-03

2000-07-04

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

359662, 359205, 359206, 359216, 359217, 359218, 359223, 359226, G02B 2608

Patent

active

060846968

ABSTRACT:
Disclosed is a scanning optical system for emitting a scanning beam onto a surface to be scanned. The scanning optical system is provided with a laser source that emits a laser beam, a deflector that deflects the laser beam emitted by the laser source towards an f.theta. lens the laser beam passed through the f.theta. lens scans on the surface to be scanned the f.theta. lens includes at least one lens which is formed to cancel an uneven intensity distribution characteristic of the scanning optical system within an area where the laser beam scans on the surface to be scanned.

REFERENCES:
patent: 4823002 (1989-04-01), Saito
patent: 5009472 (1991-04-01), Morimoto
patent: 5189546 (1993-02-01), Iizuka
patent: 5459601 (1995-10-01), Suzuki et al.
patent: 5691835 (1997-11-01), Iizuka

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