Ozone absorbance controller

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Polarizer or special ray transmission

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Details

250504, 250510, 350 1, 356 51, H01J 516, H01K 134

Patent

active

040499871

ABSTRACT:
An ozone absorbance controller for use with an ultraviolet light source, which includes a vented, trapped gas filter disposed in the optical emission path of said ultraviolet light source to absorb high energy ultraviolet rays of wavelengths below about 200 nanometers, and thereby substantially preventing the formation of ozone in the optical emission path subsequent to the filter.

REFERENCES:
patent: 2016474 (1935-10-01), Wood
patent: 2326773 (1943-08-01), Floyd
patent: 2538685 (1951-01-01), Hansen et al.
patent: 3089033 (1963-05-01), Fujisawa
patent: 3760182 (1973-09-01), Poole
patent: 3956655 (1976-05-01), Pevo

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