| 摘要 |
There is provided a polarizing lens for sunglasses capable of effectively preventing light from falling on eyes outside the lens at the side of the eyes in the polarizing lens for sunglasses of spherical shape. The polarizing lens for sunglasses is made up of a polarizing lens object for sunglasses formed by pasting a lens element for an object and a lens element for an eyepiece to an object plane and an eyepiece plane of a polarizing film having a polarizing axis oriented horizontally, respectively, the polarizing lens object for sunglasses having a spherical surface with a spherical radius that is determined from a standard human head part, and a portion extending from a first curved position at the side of the eyes of the polarizing lens object for sunglasses to a terminal end thereof forming a first rotating surface, the first rotating surface being formed of a part of a rotating surface obtained by rotating a vertical section of the spherical surface at the first curved position provided that a vertical rotating axis passing through a radius line of a spherical radius on a plane at the first curved position and a radius of first rotating body that is smaller than the spherical radius are rotating conditions.
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