Imaging lens capable of blocking stray light
US8985789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Nov 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging lens includes a lens barrel, an imaging unit and a light shielding unit. The lens barrel includes a base wall formed with a light incident hole at an optical axis of the imaging lens and a surrounding wall that extends from and cooperates with the base wall to define a receiving space. The imaging unit includes a plurality of imaging components each having an annular front contact surface and an annular back contact surface. The light shielding unit includes an annular retaining portion clamped between an adjacent pair of the imaging components, an object-side protruding portion with a first edge, and an image-side protruding portion with a second edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.