Fabrication of lenses using high viscosity liquid
US9851475B2 · kind B2 · utility
3Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2012 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00365
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for fabricating millimeter and sub-millimeter size lenses using a high viscosity curable liquid, such as epoxy. The method comprises dispensing a predetermined volume of the curable liquid onto a substrate. The curable liquid preferably has a viscosity higher than 100 cps. Additionally, to reduce spherical aberration, the curable liquid can be cured upside down to leverage the effects of gravity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.