High resolution laser beam scanner and method for operation ther

Details High resolution laser beam scanner and method for operation ther High resolution laser beam scanner and method for operation ther

1992-03-27

1993-07-13

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359209, G02B 2608

Patent

active

052279103

ABSTRACT:
A laser beam scanner in its preferred form has a laser source which emits a laser beam at a prism. The prism receives and deflects the laser beam toward a spherical lens, which receives the laser beam and converges it. A spherical reflector then redirects and focuses the converging laser beam to a laser scan spot along a scan line. The laser beam scanner may include one or multiple prisms, wherein individual prisms may be single or multi-faceted prisms. The laser beam scanner effectively eliminates across-scan error and generates a mathematically perfect scan line. The scanner has a high optical efficiency and a very short retrace time or blackout time. A method for laser scanning using a prism, spherical lens, and spherical reflector is also disclosed.

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patent: 5074628 (1991-12-01), Khattak et al.
Khattak, Anwar S., et al., "Refractive Scanner Removes Tracking Errors Economically", Laser Focus World, pp. 73-79 (Mar. 1992).

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