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US 2019/0317338 A1Published application
Temporary polar patches
AssigneeEssilor International
InventorsHao-Wen CHIU, Haifeng SHAN, Elliot FRENCH
Life of this patent
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Abstract
Optical polymeric sheets with specific ranges of optical retardation, elastic modulus, and Shore A hardness were used to construct flexible polar patches. The polar patches conform to non-polarizing lenses of various diopter bases and provide polarizing efficiency that is comparable to regular polarizing lenses.
Claims15
A patch for reducing through-transmittance of light to a non-polarized optical article, comprising:
- a flat and flexible laminate comprising at least one polarizing film;
- wherein the patch is releasably securable to the non-polarized optical article.
Dependencies are inferred from the claim text.