Imaging lens assembly
US9618727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Nov 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens assembly is disclosed in the present disclosure. The imaging lens assembly includes, in order from an object side to an image side: a stop; a first lens having a positive refractive power, a convex object-side surface and a convex image-side surface; a second lens having a negative refractive power and a convex and meniscus shaped image-side surface; a third lens having a positive refractive power, a convex object-side surface and a convex image-side surface; a fourth lens having a negative refractive power, an image-side surface being concave at a paraxial region and being convex and meniscus shaped at a peripheral region, and an object side-surface being convex at the paraxial region; the image-side surface of the fourth lens having an inflection point; at least one of the image-side surfaces of three lenses being spherical; and the imaging lens assembly satisfying following condition:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.