Active lens alignment system
US10187636B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For aligning an image sensor relative to a lens module prior to fixing the image sensor to the lens module, an exposure of the image sensor is turned on and the image sensor is moved to different distances relative to the lens module. At certain predetermined distances between the image sensor and the lens module, a calibration pattern is illuminated and two or more pictures of the calibration pattern which is focused through the lens module are captured with the image sensor to produce at least two pictures of the calibration pattern captured at different distances, the at least two pictures being superimposed onto a calibration image. The exposure of the image sensor is then turned off and the pictures of the calibration pattern are analyzed for determining an alignment between the lens module and the image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.