Optical lens and method of making the same
US6078430A · kind A · utility
10Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An optical lens and method of making the optical lens including a substantially arc-shaped cutting surface on a flange section for easily removing a gate section by cutting. A flange section is located at an outer periphery of an optically functioning section and the substantially arc-shaped cutting surface is located at an outer peripheral portion of the flange section along a circumferential direction of the flange section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.