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US 6,188,933 B1Granted
Electronically controlled stage lighting system
AssigneeLight and Sound Design Ltd.
InventorsWilliam Hewlett, Ian Clarke, Nigel Evans, Richard Parker, Mark A. Hunt, Michael Hughes
Life of this patent
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Abstract
A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output.
Claims9
A gobo emulating system, comprising:
- a memory storing a graphical representation file indicating a shape of a hardware gobo;
- a processor element, converting said shape in said memory into a signal indicative of a desired gobo shape, and outputting said signal as a gobo commanding signal;
- a digital light altering device, receiving said gobo commanding signal, and using said gobo commanding signal to produce a control for output light according to said gobo commanding signal;
- and
- a light projection source, projecting a beam of light to said digital light altering device which shapes said beam of light based on said gobo commanding signal, and thereby projects a shape based on said graphical representation file indicating the shape of the hardware gobo.
2 more elements
A light projecting device, comprising:
- a source of light;
- a light coloring device, optically downstream from said source of light;
- a light shape altering device, optically downstream from said source of light;
- a zoom lens system, optically downstream from said source of light;
- a light sampling device, optically downstream from said color changing device, and said light shape altering device, operating to obtain a sample of light at a location of said light sampling device, to thereby obtain a sample of the light that is received with the same field of view as said other light.
2 more elements
Dependencies are inferred from the claim text.