Camera device
US11209578B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0055
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera device includes a plurality of lenses and an annular body having a fixed hole. The plurality of lenses and the annular body are arranged between an object side and an image side along an optical axis. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form the fixed hole. The camera device satisfies: EFL/√{square root over (4A/π)}=(EFL/Dx+EFL/Dy)×K1; K1≤0.49, where EFL is an effective focal length of the camera device, A is an area of the fixed hole, K1 is a coefficient, Dx is a maximum dimension of the fixed hole through which the optical axis passes, and Dy is a minimum dimension of the fixed hole through which the optical axis passes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.