Patent ID: 6412972
Filing Date: 2002-07-02
Classification: F21W,G09F,H04N

Abstract:
A light display system comprising:a fixed first housing having a light source that generates a light beam and a first micromirror device that generates an digital light beam from said light beam and directs said digital light beam along a first optical path; a projection lens that directs said digital light beam along a second optical path; a rotatable second housing connected to and rotatable relative to said fixed first housing about a first axis, said rotatable second housing having a fixed reflector that directs said digital light beam along a third optical path, and a rotatable reflector that is rotatable about a second axis and adapted to direct said digital light beam along a fourth optical path onto a stage display; a digital signal controller that controls said micromirror device to reflect said digital light beam along said first optical path; means for rotating said rotatable second housing about said first axis; means for rotating said rotatable reflector about said second axis; and a substantially totally internally reflective prism between said first micromirror device and said projection lens.