LASER BEAM SCANNING APPARATUS AND METHOD

    公开(公告)号:AU2190492A

    公开(公告)日:1993-01-08

    申请号:AU2190492

    申请日:1992-06-05

    Inventor: DONALD C CONEMAC

    Abstract: PCT No. PCT/US92/04734 Sec. 371 Date Feb. 2, 1994 Sec. 102(e) Date Feb. 2, 1994 PCT Filed Jun. 5, 1992 PCT Pub. No. WO92/22109 PCT Pub. Date Dec. 10, 1992A laser beam scanning apparatus employs a movable reflector (32) having a large number of flat reflective sides (44) a deflector (16) which shifts the laser beam (10) at high speed across a plurality of the reflective sides (44). The movement of reflector (32) is synchronized with the deflection of the laser beam (10) to produce a desired scan pattern in a first scan direction (X). The reflective sides (44) of the movable reflector (32) may be angled relative to each other in a second direction (Y) to produce different scan lines thereby providing an X-Y scan pattern. The combined high speed beam deflection and motion of the reflector (32) provide scanning of the beam (10) in parallel scan segments thereby providing high scanning speed of the beam with a high degree of resolution.

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