Patent ID: 9599563
Date: 2017-03-21
CPC Classifications: G01N,Y10S

Claim:
1. An inspection lamp comprising: a handle; light emitting diodes as a source of radiation suitable for causing visible fluorescence of fluorescent materials, where said light emitting diodes are substantially non-identical in spectral characteristics of their emitted radiation, such that at least one but not all of first said light emitting diodes in said inspection lamp produce first wavelengths of radiation that are favorable for causing visible fluorescence of some fluorescent materials, and such that one or more second said light emitting diodes in said inspection lamp produce different second wavelengths of radiation which are more favorable than the wavelengths of said first said light emitting diode(s) for causing visible fluorescence of some fluorescent materials other than first said fluorescent materials; and a respective electrical switch each for selectively activating each type of light emitting diode as a collective group, wherein in one activation mode all of said light emitting diodes are activated wherein if one light emitting diode is emitting radiation of the first wavelengths then at least one other light emitting diode is emitting radiation of the second wavelengths, and wherein the first wavelength radiation and the second wavelength radiation emit unblocked from the lamp, and wherein in another activation mode only one type of light emitting diode is activated as a collective group.