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Laser compass

  • US 5,142,788 A
  • Filed: 05/17/1991
  • Issued: 09/01/1992
  • Est. Priority Date: 05/17/1991
  • Status: Expired due to Fees
First Claim
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1. A laser compass comprising:

  • (a) a laser light source for projecting a laser beam along an axis;

    (b) a mirror;

    (c) mirror rotating means for rotating said mirror within a rotation plane perpendicular to said axis, said mirror rotating means comprising;

    (i) a rotatable mirror support;

    (ii) first and second mirror support arms projecting upwardly from said mirror support;

    (iii) drive means for rotatably driving said mirror support; and

    ,(d) mirror pivoting means for pivoting said mirror relative to said axis, said mirror pivoting means comprising;

    (i) a link member projecting through said mirror support;

    (ii) pivotal coupling means for pivotally coupling one end of said link member to said mirror;

    (iii) securing means for pivotally securing said mirror between said support arms; and

    (iv) adjusting means coupled through said mirror support to an opposed end of said link member for adjustably displacing said link member relative to said mirror.

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