Ultraviolet fire detector

Details Ultraviolet fire detector Ultraviolet fire detector

1978-12-11

1980-12-23

Anderson, Bruce C.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250461R, G01J 142

Patent

active

042412587

ABSTRACT:
An ultraviolet fire detection device using a phosphor to translate energy from ultraviolet wavelengths down into visible and near infrared wavelengths for detection by a photosensitive solid state device, sounding an alarm upon detection of ultraviolet wavelengths associated with flames. In one embodiment has two windows, a reference window being opaque to ultraviolet wavelengths. In the second embodiment, a prism or diffraction grating is used to separate the light source into its various wavelengths.

REFERENCES:
patent: 3609364 (1970-02-01), Proffit
patent: 3643093 (1972-02-01), Dietz
patent: 3891849 (1975-06-01), Felice et al.
patent: 4015130 (1977-03-01), Landry et al.
patent: 4096387 (1978-06-01), Buckley

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