Planar microlens array and method of manufacturing same
US6366406B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1999 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jan 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A planar microlens array includes an array of convex microlenses made of an ultraviolet-curable synthetic resin having a high refractive index and disposed on a surface of a base glass plate. A cover glass plate is bonded to the array of convex microlenses by an adhesive layer made of an ultraviolet-curable synthetic resin having a low refractive index. A film made of an ultraviolet-curable synthetic resin is applied to a surface of the base glass plate remote from the array of convex microlenses. The film serves to prevent the planar microlens array from being warped when the ultraviolet-curable synthetic resin of the array of convex microlenses and the adhesive layer are cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.