| 摘要 |
PROBLEM TO BE SOLVED: To provide a machining device and method for a fly-eye lens forming die, capable of polishing not only a spherical surface shaped fly-eye lens but also a non-spherical surface shaped fly-eye lens and efficiently performing polishing with more polishing amount per fixed time. SOLUTION: In this polishing machine 1, a polishing tool 19 of a projecting surface having almost the same curvature as that of a forming recessed surface mounted on a mounting stage 7 of a body to be machined is used. The body to be machined is moved at an X-direction stage 3 and a Y-direction stage 4 so that a rotation center of a head rotary shaft 15 may coincide with an optical axis of the forming recessed surface to be polished at first, the polishing tool 19 is brought into contact with the forming recessed surface, and polishing is performed by rotating a tool rotary shaft 18 around an optical axis c by the head rotary shaft 15, while rotating the polishing tool 19 by the tool rotary shaft 18. When polishing of the one forming recessed surface is finished, the optical axis of the next forming recessed surface is moved to coincide with a center shaft of the head rotary shaft 15 by X-axis and Y-axis, and the same polishing is performed. The polishing is successively performed for all forming recessed surfaces. COPYRIGHT: (C)2007,JPO&INPIT
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