Illumination system adapted for surgical lighting
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United States of America Patent
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Feb 4, 2003
Grant Date -
N/A
app pub date -
Dec 14, 1999
filing date -
Dec 17, 1998
priority date (Note) -
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Abstract
An illumination system for illuminating an area within a room includes one or more light sources, preferably disposed outside the room, one or more lighting heads disposed within the room, one or more light pipes and/or fiber bundles to transmit light from the source(s) to the lighting head(s). The system includes means for controlling both the intensity and the color rendering index of the light emitted from the lighting head. In a preferred embodiment, the sources include an incandescent source extending across the visible spectrum and a light emitting diode source which emits essentially red light, and control of the color rendering index is effected by controlling the relative amounts of light from the two sources reaching the lighting head. Preferred forms of the invention also include special joints which permit all necessary translations and rotations of the lighting head while still permitting a continuous light path via fiber bundles and/or light pipes from the source to the lighting head.
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