Title:
SPHERICAL MIRROR SURFACE MACHINING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP3019026
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To machine the end face of an optical connector into convex spherical mirror surface with high efficiency.
SOLUTION: This machining device consists of a polishing base 3, mechanism for making a polishing tape 2 travel, mechanism 19 for bringing a workpiece 1 and the polishing tape 2 into contact with each other with constant load, mechanism for reciprocating the workpiece 1 longitudinally on the recessed face of the polishing base 3 while rotating the workpiece 1, and mechanism for forming a uniform polishing solution layer on the polishing tape 2. The rotation axis of the workpiece 1 and the center of curvature of the recessed circular arc face on the polishing base 3 are made to coincide with each other to bring both into contact with each other, and while feeding the polishing tape 2 by a motor 18, a chuck rotating motor 13 is rotated to rotate a chuck 6 and to move it parallel in the longitudinal direction of a rack 9. A polishing solution of 50 cc/m2 to 10 cc/m2 is fed to a sponge 4 to form a thin, uniform polishing solution layer on the polishing tape 2. The workpiece 1 is pre-machined by rotatory-reciprocating motion, and the polishing tape 2 is then replaced with one with fine grain size to polish in the same way. The end face 8 is therefore machined into smooth convex spherical shape.
Inventors:
Kenichi Ohno
Mitsuhashi Masashige
Mitsuhashi Masashige
Application Number:
JP14169497A
Publication Date:
March 13, 2000
Filing Date:
May 30, 1997
Export Citation:
Assignee:
NEC
International Classes:
G02B6/36; B24B13/00; B24B19/00; B24B19/22; B24B21/00; B24B37/00; B24B57/02; (IPC1-7): B24B19/00; B24B21/00; G02B6/36
Domestic Patent References:
| JP929599A | ||||
| JP1264759A | ||||
| JP5157941A | ||||
| JP9201758A | ||||
| JP2269553A | ||||
| JP9272051A | ||||
| JP289606U |
Attorney, Agent or Firm:
Tadashi Wakabayashi