Optical device having a microlens and a process for making microlenses
US5225935A · kind A · utility
64Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1992 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Jul 8, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An optical device having a lens substrate and a microlens portion formed thereon, wherein the microlens has its lens portion formed on the part of the optical device that has substantially the same coefficient of expansion as that of the lens substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.