초록 ▼

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 scatter

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.

대표청구항 ▼

[ What is claimed is:] [1.] A light projection system for lighting applications having at least one light projector which includes beam intensity control means, said projector comprising:(1) a light beam source for generating a beam having an intensity suitable for lighting applications;(2) a contro

[ What is claimed is:] [1.] A light projection system for lighting applications having at least one light projector which includes beam intensity control means, said projector comprising:(1) a light beam source for generating a beam having an intensity suitable for lighting applications;(2) a controllable dimmer for adjusting the intensity of said beam;(3) an intensity-indicating feedback device responsive to the adjusted beam and having an output indicative of the intensity level of the adjusted beam; and(4) a controller responsive to said feedback device and arranged for controlling said dimmer in response to an external control signal applied thereto.