H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/19
H05B 37/02 (2006.01) F21S 8/00 (2006.01)
Patent
CA 1181795
COMPUTER CONTROLLED LIGHTING SYSTEM HAVING AUTOMATICALLY VARIABLE POSITION, COLOR, INTENSITY AND BEAM DIVERGENCE ABSTRACT A lighting system (10) is disclosed which includes a control panel (12) for operating a plurality of lights (14) by means of a single two conductor signal cable (18) and a power cable (20). Two embodiments (30, 110) of lights (14) are provided for use in the present lighting system. In the first embodiment, the light (30) includes four dichroic filters (58-64) mounted for pivotal motion on axes passing through the light path formed by light emanating from a lamp (50). The dichroic filters may be aligned with the light path, thereby eliminating the effect of the filters. The dichroic filters may be singly or in combination pivoted so that the light in the light path is incident on the dichroic filter at a predetermined angle to transmit a preselected color therethrough. Four primary color dichroic filters are employed. An integrating lens (100) is provided for homogenizing the color of the light. A projection lamp (50) may be employed with an elliptical mirror (52) which reflects light to converge at a focus (54). A collimating lens (56) is then used to align the light for passage through dimmer and douser units (94,90) and a focusing lens (104). The second embodiment (110) of the light (14) includes two color wheels (112,114) each having 32 apertures formed in their outer periphery. Thirty one of the apertures are filled with dichroic filters to permit a preselected color to be transmitted therethrough with one aperture left open for passing white light. gobo wheel (126) and an intensity wheel (130) may also be provided. A zoom lens (134) may be provided. The lighting system (10) permits the color, intensity, divergence and pan and tilt of each of the lights to be adjusted from the control panel (12) for each cue in a show, The settings for each cue during a show may be stored in a memory and recalled to set the variable functions of each light when desired.
394462
Kirby Eades Gale Baker
Vari-Lite Ltd.
LandOfFree
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