Method of filling a mold for manufacturing an optical lens
US5662839A · kind A · utility
62Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold for making an optical lens and formed of two molding shells disposed on edge and an annular closure member around their periphery and defining with them a molding cavity. To fill the mold a molding material is introduced into the molding cavity through a casting opening formed for this purpose in the closure member. The casting opening is in the lower part of the molding cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.