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Semiconductor forensic light kit

  • US 7,283,230 B2
  • Filed: 04/22/2005
  • Issued: 10/16/2007
  • Est. Priority Date: 09/24/1999
  • Status: Expired due to Term
First Claim
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1. A semiconductor forensic light kit comprising:

  • a battery charger, said battery charger being capable of charging a battery pack,an AC wall outlet cord for providing power to said battery charger,a DC power adapter and cord,a semiconductor forensic light that includesa housing having a proximal end, a distal end, a top, a bottom and an interior,control circuitry located in said housing interior,said control circuitry being able to control on/off and power intensity selection functions of the forensic light,an on/off button located on the top of said housing, said on/off button being in operable connection with said control circuitry,a power level selection button located on the top of said housing, said power level selection button accommodating the increase and decrease of light output levels from the forensic light,said power level selection button being in operable communication with said control circuitry,a trigger said housing, said trigger serving to accommodate initiation and terminate of light emission from the forensic light,said trigger being in operable communication with said control circuitry,a power pack located at said housing proximal end for providing electrical power to the forensic light,a plurality of light heads located at said housing distal end, each of said light heads emitting light centered on a different wavelength than each of said other heads,a light source within one of said light heads,said light source includinga semiconductor light emitting device that can emit light of a wavelength useful in detecting forensic evidence,a primary heat sink to which said semiconductor light emitting device is affixed, said primary heat sink serving to draw heat away from said semiconductor light emitting device,a secondary heat sink to which said primary heat sink is affixed, said secondary heat sink serving to dissipate heat produced by said semiconductor light emitting device,a thermoelectric cooler located on said secondary heat sink, said thermoelectric cooler experiencing a drop in temperature when subjected to a voltage, anda fan serving to move air past said thermoelectric cooler in order to cool the light source,at least one ventilation aperture on said light head for permitting air to enter and exit the light head to facilitating heat dissipation, andat least one light exit on said light head, said light exit being sized and shaped to permit light to exit said light head for use in detecting forensic evidence.

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