Disposable dosimeter for sun radiation

Details Disposable dosimeter for sun radiation Disposable dosimeter for sun radiation

1998-06-03

2000-10-17

Alexander, Lyle A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 61, 2504821, G01J 138

Patent

active

06132681&

ABSTRACT:
A disposable dosimeter for sun radiation comprising a matrix with at least one active chemical compound distributed therein, capable of changing its original color to a new color due to a chemical reaction induced by exposure to UV radiation, said matrix made of a material having transparency sufficient for visual detection the change of the original compound's color to the new color, said matrix containing at least one absorbing compound capable of absorbing the UV radiation, said active chemical compound being capable of changing its color after exposure to UV radiation with an efficacy corresponding to at least 1 MED, said UV radiation being accumulated during at least 15 minutes of exposure and said active chemical compound having a resistance to change the new color neither during exposure to temperatures up to 50.degree. C., nor during exposure to visible light.

REFERENCES:
patent: 3787687 (1974-01-01), Trumble
patent: 3903243 (1975-09-01), Atsukawa et al.
patent: 3903423 (1975-09-01), Zweig
patent: 4829187 (1989-05-01), Tomita et al.
patent: 5117116 (1992-05-01), Bannard et al.
patent: 5411835 (1995-05-01), Brinser
patent: 5612541 (1997-03-01), Hoffmann et al.

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