Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1990-05-04
1992-04-21
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
25037015, G01J 144
Patent
active
051071231
ABSTRACT:
Provided is an ultraviolet radiation device useful to measure intensity of the ultraviolet radiation in a selected environment which has an optical-electrical converter having an optical means for expanding an ultraviolet radiation input angle of the converter, a temperature sensor and an electrical signal conditioner having means to generate an ultraviolet intensity signal which is independent of ambient temperature. A preferred device is for personal use and permits allocation of measured daily doses of solar ultraviolet radiation over multiple days to provide a predetermined total cumulative amount of ultraviolet radiation and a desired tanning of skin during sunbathing. The preferred device issues a signal when the daily allocated dose is reached. The invention also provides by using the device of the invention a process to determine prevailing ultraviolet radiation levels and cumulative amounts and a controlled process for tanning.
REFERENCES:
patent: 3809905 (1974-05-01), Suga
patent: 4428050 (1984-01-01), Pellegrino et al.
patent: 4468562 (1984-08-01), Wicnienski et al.
patent: 4851686 (1989-07-01), Pearson
patent: 5008548 (1991-04-01), Gat
Fields Carolyn E.
Sinn Leroy G.
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