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US 2022/0066237 A1Published application
Plastic lens and eye glasses
AssigneeTokai Optical Co., Ltd.
InventorHiroshi UENO
Life of this patent
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Abstract
[Object] Provided are a plastic lens and spectacles having a high HEV cut rate represented as 100−(average transmittance in a wavelength range of not less than 400 nm and not greater than 420 nm). [Solution] A plastic lens according to the present invention includes a plastic lens base material obtained as a result of curing of a polymerizable compound having mixed therein a benzotriazole compound represented by general formula (1) below. Spectacles according to the present invention is produced by using the above-described plastic lens as a plastic spectacle lens.
Claims8
A plastic lens comprising
- a plastic lens base material obtained as a result of curing of a polymerizable compound having mixed therein a benzotriazole compound represented by general formula (1) below
- (in general formula (1), R represents an alkyl group having not less than 1 and not more than 8 carbon atoms).
Dependencies are inferred from the claim text.