APPARATUS AND METHOD FOR OPERATING A PORTABLE XENON ARC SEARCHLIGHT
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United States of America Patent
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Issued Date -
Aug 23, 2012
app pub date -
Feb 23, 2011
filing date -
Feb 23, 2011
priority date (Note) -
Abandoned
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Abstract
An apparatus for producing a high intensity beam of light with high efficiency of conversion of electrical power into light intensity includes an arc lamp, a reflector, a screw drive mechanism coupled between the arc lamp and reflector for positioning the arc lamp relative to the reflector to provide zoom control of the beam of light, and a spring for biasing the screw drive mechanism into a stable configuration to eliminate backlash and instability of the positioning the arc lamp relative to the reflector to provide zoom control of the beam of light. A handheld light includes an IR filter selectively disposable over the aperture of the light so that only infrared light and a circumferential light curtain is interposed between the IR filter and the body so that no there are no light leaks even the IR filter and the body are prevented from fitting closely due to interposed debris.
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