Laser scanning system for use in laser imaging

Details Laser scanning system for use in laser imaging Laser scanning system for use in laser imaging

1991-03-18

1992-01-28

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Scanning

372 65, 372101, 372 99, 372107, 372108, 346108, H01S 310

Patent

active

050848836

ABSTRACT:
A laser scanning system for scanning a laser beam across a material, comprises a laser source for generating a laser beam travelling along a first optical path and a beam reflector in the path of the laser beam. The beam reflector is rotatable about a rotation axis and includes a single mirror facet which extends in a plane oriented at an angle of 45.degree. relative to the rotation axis and has a center of rotation lying on the rotation axis, for reflecting the laser beam into a scanning beam moving at a substantially constant angular velocity. A scan lens is disposed in the path of the scanning beam for focusing the scanning beam onto the material. The laser scanning system of the invention further includes a support for supporting the laser source, beam reflector and scan lens relative to one another. The support has a unitary body formed with a first bore extending through the body. A second bore extends at least partially through the body and intersects the first bore orthogonally so as to define a third opening for receiving the scan lens and enabling same to be mounted to the body such that the center of rotation of the mirror facet is aligned with a center point of the scan lens.

REFERENCES:
patent: 4404570 (1983-01-01), Ohmishi
patent: 4516142 (1985-05-01), Yamamoto
patent: 4719474 (1988-01-01), Hansen et al.

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