Illumination – Light source and modifier – Adjustable or repositionable modifier
Patent
1996-05-09
1997-11-25
Husar, Stephen F.
Illumination
Light source and modifier
Adjustable or repositionable modifier
362284, 362322, 362324, 353 97, F21V 1700
Patent
active
056918860
ABSTRACT:
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.
REFERENCES:
patent: 1027848 (1912-05-01), Huston
patent: 2146637 (1939-02-01), MacFadden
patent: 2205179 (1940-06-01), Schultz
patent: 2214050 (1940-09-01), Fowler
patent: 3702929 (1972-11-01), Burch
patent: 4392187 (1983-07-01), Bornhorst
patent: 4435047 (1984-03-01), Fergason
patent: 4460943 (1984-07-01), Callahan
patent: 4597643 (1986-07-01), Podvin et al.
patent: 4709311 (1987-11-01), Bornhorst
patent: 4763993 (1988-08-01), Vogeley et al.
patent: 4890208 (1989-12-01), Izenour
patent: 4891738 (1990-01-01), Richardson et al.
patent: 4914556 (1990-04-01), Richardson
patent: 5009488 (1991-04-01), Fay et al.
patent: 5045983 (1991-09-01), Shields
patent: 5113332 (1992-05-01), Richardson
patent: 5389982 (1995-02-01), Lee
patent: 5537303 (1996-07-01), Stacy
English Translation of Abstract JP-62294230 dated Dec. 21, 1987.
English Translation of Abstract JP-4171480 dated Jun. 18, 1992.
English Translation of Abstract JP-5249431 dated Sep. 28, 1993.
English Abstract of JP 2-96714 dated Apr. 9, 1990.
English Abstract of JP 61-59316 dated Mar. 26, 1986.
English Abstract of JP 2-253291 dated Oct. 12, 1990.
DHA Lighting Limited Moving Effects Catalog, Apr. 1988.
Husar Stephen F.
Vari-Lite Inc.
LandOfFree
Programmable rotatable gobo system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable rotatable gobo system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable rotatable gobo system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2112226