Single focus lens
US7408725B2 · kind B2 · utility
188Cited by
1References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Sep 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single focus lens is provided and includes: in order from an object side of the single focus lens, a first lens having positive power and having a convex surface on the object side; a second lens of a negative meniscus lens and having a concave surface of the object side on its paraxial axis; and a third lens of an aspherical lens having a convex surface on the object side on its paraxial axis. The single focus lens satisfies conditions specified in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.