Aligning lens elements in a lens module relative to an image sensor
US11283978B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Oct 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Before fixing first and second lens modules to an image sensor to form an assembled camera module, the first lens module is held while electrical signals are provided to a first lens element comprised in the first lens module to drive the first lens element to move. An incident light is received along a first optical path and a reflective surface of the first lens element projects the incident light along a second optical path perpendicular to the first optical path such that the incident light is projected through the second lens module along the second optical path onto the image sensor. The first lens module and first lens element are moved relative to the image sensor until the reflective surface forms an inclination angle of 45 degrees with respect to the incident light, so that the incident light is projected normally onto an image plane of the image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.