Lens frame, lens assembly and image-taking apparatus
US8025450B2 · kind B2 · utility
3Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Sep 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/107
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens assembly made of porous ceramic is provided with concave sections into which an adhesive for fixing lenses inserted into a lens frame is injected. Each of the concave sections has an outward opening and a spacing wall provided between a hollow part of the lens frame and the opening. The adhesive injected into the concave sections passes through multiple pores in the lens frame made of porous ceramic, and reaches the periphery of each of the lenses, thereby fixing the lenses to an inner wall of the hollow part of the lens frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.