Illumination – Light source and modifier – With ventilating – cooling or heat insulating means
Reexamination Certificate
2007-09-11
2007-09-11
Ward, John Anthony (Department: 2885)
Illumination
Light source and modifier
With ventilating, cooling or heat insulating means
C362S234000, C250S459100, C250S461200, C356S318000
Reexamination Certificate
active
11112720
ABSTRACT:
A method for detecting forensic evidence. The method includes use of a forensic light that may utilize a variety of semiconductor light sources to produce light that contrasts forensic evidence against its background for viewing, photographing and collection. Example semiconductor light sources for the forensic light include light emitting diodes and laser chips. A heat sink, thermoelectric cooler and fan may be included to keep the forensic light cool. A removable light source head may beutilized on the forensic light to provide for head swapping to give the user access to different wavelengths of light.
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Cao Densen
Li Hongyan
Lin Zhaohui
Ostler Calvin D.
CAO Group, Inc.
Dobbin Geoffrey E.
Ward John Anthony
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