The CoroCAM family of five cameras allow you to see ultraviolet emissions such as electrical corona, arcing, hydrogen fires, alcohol fires, brush fires, flourescent light cover "leakage", tungsten-halogen lamps UV emissions and other sources of UVc during daylight or darkness because the CoroCAM uses a filter in the ultra-violet (UVc) spectrum. There are other phenomona that emit UV that sunlight overwhelms that may be imaged by CoroCAM models under low light/indoors lighting and other models for outdoor bright sunlight.
On the following graph the white line depicts the intensity versus wavelengths of the sun's energy reaching the earth. The ozone layer surrounding the earth absorbs the suns energy in the UVc wavelengths. The blue line is the wavelengths that the CoroCAM solar-blind filter passes.
The CoroCAM 4+ model cameras only "see" the wavelengths where the suns energy doesn't reach the earth. The ultraviolet emissions are detected thru a special "solar-blind" filter for the ultraviolet C band and then the UVemission picture is overlaid onto a visible camera picture in the Visible band of wavelengths(400-700nm).
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The CoroCAM is used in the field and from aircraft to locate electrical corona, arcing, fires (brush, alcohol during daylight, hydrogen, etc.). The ultraviolet radiated from these sources is typically much easier and less expensive to see at a distance then with infrared including thru smoke.
For the specification on all of the CoroCAM models, look to www.corocam.co.za and for pricing and options info look at www.specialcamera/uvcam/cameras.html.
©2011 Ox Creek Energy Assoc Inc
Last update: February 4, 2011