Stage lighting lamp unit and stage lighting system including such unit

  • US 5,921,659 A
  • Filed: 12/18/1997
  • Issued: 07/13/1999
  • Est. Priority Date: 06/18/1993
  • Status: Expired due to Term
First Claim
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1. A coordinate converting lamp unit, comprising:

  • a communication element, receiving a signal for the lamp unit, said signal including information indicative of a desired position of the lamp in an absolute coordinate system; and

    a first lamp, receiving said signal including said desired position information, and including;

    a) a calculating device, including information from which a conversion between said absolute coordinate system and a first coordinate system of the lamp can be effected, and operating to convert said desired position information from said absolute coordinate system into said first coordinate system of the first lamp; and

    b) lamp moving devices, said lamp moving devices responsive to said information in said lamp coordinate system to move said lamp to a position indicated thereby and to thereby point said lamp at an area indicated by said absolute coordinate system.

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