High intensity lighting projectors

Details High intensity lighting projectors High intensity lighting projectors

F - Mech Eng,Light,Heat,Weapons

21

S

F21S 8/00 (2006.01) F21S 10/00 (2006.01) F21V 9/10 (2006.01) F21V 29/02 (2006.01) G02F 1/133 (2006.01) H04N 5/74 (2006.01) H04N 9/31 (2006.01) G02F 1/1334 (2006.01) G02F 1/1335 (2006.01)

Patent

CA 2065774

A high intensity light projector for stage, architectural and similar applications includes a controllable image quality projection gate providing advanced visual effects. The projection gate, capable of selectively scattering or transmitting incident light, may be constructed of an array of scattering liquid crystal material in combination with infrared and ultraviolet reduction means which provide in the high intensity beam, a stable thermal environment by minimizing the absorption of light by the projection gate. Additional thermal efficiency is provided by supplemental cooling means. Color control is also provided in the form of dichroic filter wheels forming cooperating adjustable low, high and band width filters including saturation control. A color measuring feedback sensor is also provided. An intensity measuring feedback sensor controls a spatially-modulated, variable-density, reflectively- coated dimming wheel. A programmable gobo system has provisions for gobo selection, orientation, and rotation.

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