High purity tunable forensic light source

Details High purity tunable forensic light source High purity tunable forensic light source

1995-08-30

1996-12-03

Evans, F. L.

Optics: measuring and testing

By shade or color

With color transmitting filter

356417, 2504581, 2504611, 250504R, G01N 2164

Patent

active

055813569

ABSTRACT:
A device for illuminating forensic depositions or other evidence that simultaneously provides output in three bands, the visible, ultraviolet and infrared. By a sequential mounting and rotation in two independent axis of a large selection of wavelength and bandwidth filters, the invention provides a highly-focused illumination system easily adjustable by the operator to enable selection of particular frequencies and bandwidths for enhanced observation of forensic subjects.

REFERENCES:
patent: 3792230 (1974-02-01), Ray
patent: 4149086 (1979-04-01), Nath
patent: 4176916 (1979-12-01), Carpenter
patent: 4236075 (1980-11-01), Nexo et al.
patent: 4298806 (1981-11-01), Herold
patent: 4385344 (1983-05-01), Gonser

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