Lens assembly and imaging device
US7929225B2 · kind B2 · utility
4Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2009 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens assembly is provided and includes: a plurality of lenses; a lens frame having a hollow part which includes an opening on each of an object side and an image forming side of the lens assembly and into which the plurality of lenses are inserted with their optical axes aligned; and a first coating film provided on an image forming side surface of a first lens that is located nearest to the object side among the plurality of lenses inserted into the hollow part, the first coating film being more hydrophilic than that of a base body of the first lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.