Abstract
Fluorescent lamps have been widely used for many industrial applications, but they have some inevitable defects, e.g. temperature dependence, slow response time and luminous flux degeneration. In order to improve the above mentioned problems, two new kinds of low-pressure rare-gas discharge lamps, red and near-infrared emitting lamps, have been developed. These lamps show instantaneous start-up time, virtually no performance degeneration and are largely independent of temperature-induced fluctuation.
These lamps have been applied to many industrial applications, for example, light sources for facsimile and optical character reader, illumination lamps for near-infrared imaging system which can pick up an object in complete darkness, and give satisfactory results.
The paper describes typical characteristics and some applications of the rare-gas discharge lamps.
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