Imaging lens
US8842377B2 · kind B2 · utility
4Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Jun 24, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens includes, in this order from an object side, an aperture stop ST, a positive first lens L1, a negative second lens L2 having a meniscus shape that directs a convex surface on the object side near an optical axis, a positive third lens L3, a positive fourth lens L4 having a meniscus shape that directs a concave surface on the object side near an optical axis, and a negative fifth lens L5 having a meniscus shape that directs a convex surface on the object side near an optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.