Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1979-11-26
1982-09-07
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
12820721, 250372, 3403091, 340573, G08B 2100
Patent
active
043486649
ABSTRACT:
An apparatus designed for monitoring the administering of ultraviolet therapy, particularly for portable use such as at the beach, has a control system adapted to monitor the instantaneous intensity of the ultraviolet light received by a subject being treated, wherein the instantaneous intensity is integrated by means of a rechargeable electrochemical cell to measure the total ultraviolet energy per unit area received by the subject during a given time. The apparatus is so controlled that when the total energy received by the subject as measured by the apparatus reaches a predetermined preset value as determined by the discharged state of the electrochemical cell, a warning signal either visible or audible is given to the subject. In an improved embodiment an electronic means is used to subtract the energy measured at one wavelength from the energy measured at other wavelengths, thereby providing a low cost filter means for selecting the desired wavelength to be measured.
REFERENCES:
patent: 3290669 (1966-12-01), Mews
patent: 3710115 (1973-01-01), Jubb
patent: 3838282 (1974-09-01), Harris
patent: 3891849 (1975-06-01), Felice et al.
patent: 4010372 (1977-03-01), Adler et al.
patent: 4229733 (1980-10-01), Tulenko et al.
Boschetti Armando
Snoek David J.
Elder Pharmaceuticals, Inc.
Hueschen Gordon W.
Swann III Glen R.
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