Title:
METHOD OF PRODUCING OPTICAL ELEMENT, AND OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2006/132126
Kind Code:
A1
Abstract:
A method of producing an optical element, and an optical element. In the method, a fly cutter (10) having a rotating shaft (11) and a blade (12) projecting in the direction crossing the axis of the rotating shaft (11) is rotated about the axis of the rotating shaft (11). The fly cutter (10) being rotated and a base material (20) for forming an optical element are moved relative to each other in a cutting direction and a feeding direction to form worked surfaces (21) for forming an element surface. Out of two worked surfaces (21) adjacent, along a boundary (22) between worked surfaces (21), in the direction orthogonal to the rotating shaft (11), a lower side worked surface (21) is cut. The method can form a step at the boundary (22) between the two adjacent worked surfaces (21) when an optical element or a die is produced by cutting.
Inventors:
HANAOKA MASASHI (JP)
HAYASHI KENICHI (JP)
HAYASHI KENICHI (JP)
Application Number:
PCT/JP2006/310971
Publication Date:
December 14, 2006
Filing Date:
June 01, 2006
Export Citation:
Assignee:
NIDEC SANKYO CORP (JP)
HANAOKA MASASHI (JP)
HAYASHI KENICHI (JP)
HANAOKA MASASHI (JP)
HAYASHI KENICHI (JP)
International Classes:
B23C3/00; B23C3/16; B24B13/00; B29C33/38; G02B3/00; G02B5/18; B29L11/00
Foreign References:
| JPH01167806A | 1989-07-03 | |||
| JP2004021474A | 2004-01-22 | |||
| JPH06155236A | 1994-06-03 | |||
| JP2002283204A | 2002-10-03 | |||
| JPH06297311A | 1994-10-25 | |||
| JPH08336701A | 1996-12-24 | |||
| JP2004219494A | 2004-08-05 |
Download PDF:
Previous Patent: SPERM COLLECTING DEVICE
Next Patent: OPERATION LEVER ARRANGEMENT STRUCTURE OF SEAT FOR VEHICLE
Next Patent: OPERATION LEVER ARRANGEMENT STRUCTURE OF SEAT FOR VEHICLE