Dosimeter for sun radiation
OwnerOri Faran, Ezra Natan +1inventors
InventorsOri Faran, Ezra Natan, Dmitry Lastochkin
Life of this patent
Estimating the term…
Abstract
A reusable dosimeter for sun radiation comprising a matrix with at least one active chemical compound distributed therein, capable of reversibly 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 active chemical compound being capable of changing its color after exposure to UV radiation with an efficacy corresponding to at least 1 MED, and reverting back to its original color after being kept in the dark for about 6 hours.
Claims20
A dosimeter for sun radiation comprising a matrix having at least one active chemical compound distributed therein, said chemical compound reversibly changes from its original color to a new color when exposed to UV radiation of at least 1 MED dosage, said matrix having a degree of transparency which is sufficient to permit detection of the resulting change of color, said active chemical compound being able to retain its new color at temperatures up to 50° C., and being able to revert to its original color after being kept in darkness for a predetermined time.
Dependencies are inferred from the claim text.