| 摘要 |
<p>AO-3676 BWP:cm PROGRESSIVE POWER OPHTHALMIC LENSES An ophthalmic lens for the correction of presbyopia having a progressive power surface generated by the line of intersection of an ordered sequence of intersecting spheres and cylinder surfaces, the cylinder surfaces being so chosen as to produce a uniform distribution of aberration and optical power for gently curving smooth optical effect.</p> |
