Motion-compensating light-emitting apparatus
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United States of America Patent
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Dec 25, 2007
Grant Date -
Jun 29, 2006
app pub date -
Dec 23, 2004
filing date -
Dec 23, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A light-emitting apparatus, for enabling a spot of light to be projected on a desired target located a distance away such that the spot is projectable on the desired target without any or substantially any undesired movement. The apparatus may include a housing, a light generating device located within the housing and operable to generate a beam of light, a sensing device or devices for sensing an undesired action of the housing, a control circuit operable to provide a control signal corresponding to the sensed undesired action, and a drive device operable to counter act all or at least some of the undesired action of said housing in accordance with said control signal. The sensing device or devices may be one or more gyroscopes, accelerometers or other such devices.
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