Method and system for a single frame camera module active alignment tilt correction
US9210306B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments include methods for correcting optical alignment of components in a camera module for a multifunction device. In some embodiments, components of a camera module for use in a multifunction device are assembled on a test station. Some embodiments include a method that includes capturing a single test image, calculating from the spatial frequency response data an optical tilt between the optical axis of a lens and an optical axis of the image sensor of the camera module, and mechanically adjusting an alignment of the lens and the optical axis of the image sensor of the camera module to reduce the optical tilt. In some embodiments, the capturing is performed using the components of the camera module, and the single test image contains visually encoded spatial frequency response data for characterizing the components of the camera module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.