Laser beam scanning system

Details Laser beam scanning system Laser beam scanning system

1989-12-21

1991-04-16

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250236, G02B 2608, H01J 314

Patent

active

050076922

ABSTRACT:
For tracing two scanning paths with a single laser beam, a laser beam scanning system comprises a laser beam source radiating a laser beam, a collimator lens unit, a PLZT element for rotating the polarized direction of the laser beam over 90 degrees, a polygonal mirror causing the laser beam to sweep in a lateral direction, a scanning lens unit for regulating the liner velocity of sweeping motion, a polarization beam splitter transmitting or deflecting the laser beam toward a first destination depending upon the polarized direction and a reflective mirror directing the laser beam transmitted from the beam splitter to a second destination, and the PLZT element is applied with a biasing voltage at every second scanning motion for the rotation of the polarized direction, so that the laser beam rapidly changes the scanning path.

REFERENCES:
patent: 4408826 (1983-10-01), Ike
patent: 4607917 (1986-08-01), Ebner et al.
patent: 4707081 (1987-11-01), Mir
patent: 4962312 (1990-10-01), Matuura et al.

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