Improvements in high intensity lighting projectors

专利名称：Improvements in high intensity lighting

projectors

发明人：JAMES M. BORNHORST,TIMOTHY D.

STACY,RICHARD W. HUTTON

申请号：AU3054295申请日：19950908公开号：AU694539B2公开日：19980723

摘要：A high intensity light projector for stage, architectural and similar applicationsincludes a controllable image quality projection gate (14), capable of selectively

scattering or transmitting incident light (50), may be constructed of an array of scatteringliquid crystal material in combination with infrared (20, 32) and ultraviolet reductionmeans which provide in the high intensity beam, a stable thermal environment byminimising the absorption of light by the projection gate. Additional thermal efficiency isprovided by supplemental cooling means (25, 30). Color control is also provided in theform of dichroic filter wheels forming cooperating adjustable low, high and band widthfilters 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 forgobo selection, orientation, and rotation.

申请人：VARI-LITE, INC

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