Graded index lens array
US4852982A · kind A · utility
19Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Feb 29, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0037
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a graded index lens array which gives good resolution even if its end surfaces are not fully polished during its manufacture and which is less likely to suffer loss in resolution due to damage to its surfaces comprising a plurality of graded index lenses made of a synthetic resin and arranged in parallel, characterized in that at least one end surface of the lens array is coated with a cured film formed from a cross-linkable resin consisting essentially of a multifunctional compound having at least two (meth)acryloyloxy groups per molecule, and a fluorinated alkyl (meth)acrylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.