Optical imaging system
US10901188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Nov 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B9/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical imaging system includes a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element from an object side to an image side in order along an optical axis. The first lens element to the fifth lens element each include an object-side surface and an image-side surface. The object-side surface of the second lens element has a convex portion in a vicinity of the optical axis, and the image-side surface of the fifth lens element has a convex portion in a vicinity of a periphery of the fifth lens element. Each of all lens elements having refracting power in the optical imaging system has a radius of a clear aperture less than or equal to 2.5 millimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.