| 摘要 |
<p>A diving mask (10) having hemispherically-shaped lenses (12) mounted on a flexible gasket or portion (14) and fitted to the contours of a user's face. Laser scanning or topographic mapping is used to determine the contours of the user's face. Edges of the hemispherically-shaped lenses (12) are then shaped to fit the contours of the face. As a result, the spherical center of the lenses substantially coincides with the optical nodal point of the user's (24), or the center of rotation of the eyes. This virtually eliminates the phenomenon of underwater magnification-distortion caused by the difference in refractive indices of water and air.</p> |
