Lighting apparatus

  • US 6,971,770 B2
  • Filed: 09/06/2002
  • Issued: 12/06/2005
  • Est. Priority Date: 09/06/2001
  • Status: Active Grant
First Claim
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1. A lighting apparatus having a light path defined therethrough, comprising:

  • an effect wheel having a center and an effect region located radially outwardly of the center, the effect region being configured to alter the visual appearance of a light beam passing therethrough;

    a rotation mechanism arranged to rotate the effect wheel about the center; and

    a translation mechanism arranged to move the effect wheel betweena first position in which the effect region is outside of the light path, anda second position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path(iii) a third position in which the effect region intersects the light path and in which the center of the effect wheel is outside the light path and wherein a radius through the light path from the center of the effect wheel in the third position is substantially perpendicular to a radius through the light path from the center of the effect wheel in the second position.

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