Ultraviolet radiation sensor

Details Ultraviolet radiation sensor Ultraviolet radiation sensor

1979-09-28

1981-06-09

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250461B, G01J 142, G01N 2164

Patent

active

042726794

ABSTRACT:
A sensor for the measurement of UV radiation is disclosed which comprises a first layer of phosphor particles directly exposed to incident radiation, which absorb incident radiation and emit visible radiation, a filter for absorbing UV disposed after the phosphor layer and chosen to permit the visible light emitted by the phosphor to pass through, and a photosensor sensitive to the visible light emitted by the phosphors. By disposing the filter after the phosphors, solarization of the filter is substantially eliminated and the sensor remains accurate over long periods of time.

REFERENCES:
patent: 2114163 (1938-04-01), Bird
patent: 2349754 (1944-05-01), Porter
patent: 3427489 (1969-02-01), Walsh
patent: 3535044 (1970-10-01), Seward
patent: 3629587 (1971-12-01), Decupper
patent: 3838282 (1974-09-01), Harris
patent: 3869614 (1975-03-01), Munk

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