| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical lens, a design method of the chamfering surface of an optical lens and a chamfering method of the optical lens, which method is capable of definitely preventing the losses of edge sections of the lens, a personal injury or the like by performing chamfering work so as not to create any corners. SOLUTION: Chamfering work is performed on the bonded section of a concave side optical plane 2b and a cut plane 2c of the lens 1 to form a chamfered plane 3. The chamfered surface 3 is formed on an arc plane of radius R smoothly continuing on the optical plane 2b. In addition, a primary differential coefficient (slantαof tangent M1) at the bonded section (point P) on the chamfered plane side in the optical plane 2b and a primary differential coefficient (slantαof tangent M2) at the bonded section (point P) on the optical plane side in the chamfered plane 3 are matched. COPYRIGHT: (C)2006,JPO&NCIPI
|
