Title:
METHOD AND APPARATUS FOR TRACE PERFORMING PARTS WITH ASPHERICAL SURFACES
Document Type and Number:
WIPO Patent Application WO/2002/040218
Kind Code:
A1
Abstract:
A method and apparatus for performing optical parts with aspherical surfaces is disclosed. On a cone, a section whose trace corresponds to that of a required curve is defined by mathematic calculation, i.e. parameters of the section is defined. The cone is installed to a position that provides with a trace intersection, the trace intersection couples with a grinding wheel, the cone links with the part, the part is rotated and swung about a swing axis with the cone, the trace intersection fixedly connects to the grinding wheel. Whereby the curve trace intersected on the cone is accurately transferred to the part during the performing. The present invention can be used in performing parts with convex concave conic and high-order aspherical surfaces and has advantage in general utility, precision, efficiency and costs.
Inventors:
PIAO CHENGHAO (CN)
CAI LI (CN)
CAI LI (CN)
Application Number:
PCT/CN2001/001501
Publication Date:
May 23, 2002
Filing Date:
October 24, 2001
Export Citation:
Assignee:
PIAO CHENGHAO (CN)
CAI LI (CN)
CAI LI (CN)
International Classes:
B23Q35/10; B24B13/005; B24B13/06; B24B17/02; (IPC1-7): B24B13/00; B24B17/02
Foreign References:
| US4161847A | 1979-07-24 | |||
| JPS70299721A | ||||
| SU650789A1 | 1979-03-05 | |||
| CN85106896A | 1987-04-01 |
Attorney, Agent or Firm:
LUNG TIN INT'L PATENT & TRADEMARK AGENT LTD. (Tower B Grand Place No. 5 Huizhong Roa, Chaoyang District Beijing 1, CN)
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