Non-corrective plastic spectacle lens
AssigneeTalex Co., Ltd.
InventorsShinzo TAMURA, Kenzo WADA
Life of this patent
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Abstract
The present invention provides a non-corrective spectacle lens which is a molded plastic lens used by a person having normal eyesight, or a polarizing lens constituted by the molded plastic lens and a polarizing film integrally superposed on the molded plastic lens. In order to moderately reduce the movement of the muscle necessary for focus adjustment, the non-corrective spectacle lens has a spherical power S within the range of −1.0 D≤S<−0.1 D, where D is diopter as a unit of the spherical power S.
Claims12
A non-corrective spectacle lens comprising a molded plastic lens having a spherical power S within a range of −1.0 D≤S<−0.1 D, where D is diopter as a unit of the spherical power S.
Use of a molded plastic lens as a non-corrective spectacle lens, the molded plastic lens having a spherical power S within a range of −1.0 D≤S<−0.1 D, where D is diopter as a unit of the spherical power S.
Dependencies are inferred from the claim text.