Portable light source and system for use in leak detection

  • US 5,959,306 A
  • Filed: 10/03/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 02/08/1996
  • Status: Expired due to Term
First Claim
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1. A light source for examination of a substance which emits light at a wavelength greater than a wavelength of light emitted from the light source when the substance is excited by the wavelength of light emitted from the light source, the light source comprising:

  • a housing having a light outlet;

    an essentially parabolic reflector located within the housing;

    a lamp positioned in the housing between the parabolic reflector and light outlet, wherein the lamp is capable of being connected to a source of electrical power; and

    a filter positioned in the housing between the lamp and the light outlet, wherein-the filter restricts the wavelengths of light emitted from the lamp and the light reflected by the parabolic reflector,whereby the wavelength of the light emitted from the light source through the light outlet is restricted to a predetermined range effective to enhance the detection of emission of light from a substance when the substance is excited by the wavelength of light emitted from the light source.

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