Pen-size LED inspection lamp for detection of fluorescent material

  • US 6,491,408 B1
  • Filed: 07/05/2001
  • Issued: 12/10/2002
  • Est. Priority Date: 07/05/2001
  • Status: Expired due to Fees
First Claim
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1. An inspection lamp for detecting refrigerant leaks from air-conditioning systems through illumination of fluorescent materials added to the refrigerant and lubricating oil, said inspection lamp comprising an LED pen light having a housing enclosing a power source and an LED, the housing having a rear end and a front end, with a glass lens capsule at the front end, said inspection lamp further comprising;

  • a hollow handle adapted to receive the pen light, whereby the pen light may be retracted into the handle or extended out of the handle; and

    wherein the LED emits light within a wavelength band below about 500 nm.

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