Miniature fixed-focal-length lens system
US5459615A · kind A · utility
3Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Jun 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A miniature fixed-focal-length lens system includes a lens group which consists of a plurality of lenses and has a positive refracting power and a stop disposed on the object side of the lens group. The lens nearest to the object in the lens group is a meniscus lens which is concave to front and has a positive refracting power and the lens remotest from the object in the lens group is a lens which is convex to rear and has a positive refracting power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.