Eyeglass rating with respect to protection against UV hazard
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United States of America Patent
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Aug 2, 2016
Issued Date -
N/A
app pub date -
Dec 13, 2012
filing date -
Dec 23, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An index value is calculated for rating an eyeglass with respect to protection against UV hazard. The index value is based on an integrated UV transmission value through the eyeglass and an integrated UV reflection value related to a back face of the eyeglass. Thus, the index value takes into account actual wearing conditions where UV eye exposure is due either to transmission through the eyeglass or reflection on the eyeglass back face. Respective index values obtained for a set of eyeglasses allow easy sorting of the eyeglasses with respect to UV protection efficiency.
First Claim
Family
International Classification(s)
- G01J:MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTE....
- B07C:POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BU....
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....
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