Uv depreciation sensor

Details Uv depreciation sensor Uv depreciation sensor

G - Physics

01

J

G01J 1/38 (2006.01) H01J 61/02 (2006.01)

Patent

CA 2490204

A lamp having a measurable ultra violet light emission and having thereon a first marking revealing at least the operating characteristics of said lamp and a second marking evidencing a change in characteristics in response to exposure to ultra violet emissions. In a preferred embodiment of the invention a symbol or other indicia is provided on the lamp as the second marking that fades in accordance with the number of hours the lamp is operating, thus providing an indication of the UV output of the lamp.

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