Title:
非球面凸レンズの加工システム
Document Type and Number:
Japanese Patent JP7359425
Kind Code:
B2
Abstract:
To sufficiently respond to a high-accuracy and high-quality requirement including size reduction with respect to an aspherical lens (aspherical convex lens) by enhancing the grinding accuracy of the lens.SOLUTION: In the processing method of an aspherical convex lens, when performing the grinding processing (including polishing processing) of a lens surface Wf including an aspherical face of a lens workpiece W by making a rotating grindstone 2 ... pressure-contact with the lens workpiece W, the grindstone 2 ... having a ground surface 2s ... including a linear line Ls perpendicular to a normal line Ln of a ground part Ps is made to pressure-contact with the ground part Ps of the lens workpiece W, turning angle control processing for performing a relative turn and displacement in a face direction Ff of the ground surface 2s ... with respect to the lens workpiece W with a selected pivot position Pc on a center line Lb of the lens workpiece W as the center is performed, and position control processing in a rotation axial direction Fr is simultaneously performed to the grindstone 2 ..., thus performing the grinding processing to the lens surface Wf of the lens workpiece W.SELECTED DRAWING: Figure 1
Inventors:
Kiwang Yan
Masayuki Mikami
Keisuke Nagasawa
Kazuo Kimura
Masayuki Mikami
Keisuke Nagasawa
Kazuo Kimura
Application Number:
JP2019181211A
Publication Date:
October 11, 2023
Filing Date:
October 01, 2019
Export Citation:
Assignee:
Cosina Co., Ltd.
International Classes:
B24B13/00; B24B13/04
Domestic Patent References:
| JP63232966A | ||||
| JP53048294A | ||||
| JP47043268B1 | ||||
| JP2004358591A |
Attorney, Agent or Firm:
Shigeru Shimoda