Patent ID: 6979104
Filing Date: 2005-12-27
Classification: G01N,Y10S

Abstract:
1. An inspection lamp having: a. Two or more light emitting diodes which produce radiation suitable for causing visible fluorescence of fluorescent materials, b. A plurality of lenses, a lens of the plurality of lenses forward from each of said light emitting diodes to collimate the radiation from each light emitting diode into a beam, such that each beam of radiation individually associated with each of said light emitting diodes projects forward from its lens and a plurality of beams of radiation simultaneously produced by a plurality of the light emitting diodes merge together, wherein the individual beams converge towards each other such that the axes of the beams intersect with each other at a specific distance forward of the lenses, and wherein the individual beams have an angular diameter greater than any angle between any two axes of said beams, such that some area can be illuminated by all said beams at any distance from the lenses greater than distance from the lenses to the point at which the beam axes intersect.