| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical filter of high quality in which optical foreign matter generated at the optical filter is extremely restricted, and also to provide a manufacturing method of high precision and at low manufacturing cost. SOLUTION: In a first drive zone 2, holding parts 21a and 21b, and a profiling model 22 on the outer side of the holding part 21a are disposed on a first drive shaft 20. In a second drive zone 3, a grinding wheel 31 and a profiling roller 32 adjoining the grinding wheel are provided on a second drive shaft 30. Gears 33 and 33 to provide rotation driving to the grinding wheel 31 are coaxially disposed. The grinding wheel 31 in the second drive zone is rotated at high speed (3700rpm, for example) in a direction of an arrow Y1 to move in a direction of an arrow X1, for example, for grinding a workpiece along the outer circumference. COPYRIGHT: (C)2005,JPO&NCIPI
|
