Passive alignment of array camera modules constructed from lens stack arrays and sensors based upon alignment information obtained during manufacture of array camera modules using an active alignment process
US9638883B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Nov 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems and methods in accordance with embodiments of the invention actively align a representative optic array with an imager array, and subsequently passively align constituent optic arrays with constituent imager arrays based on data from the active alignment. In one embodiment, a method of aligning a plurality of lens stack arrays with a corresponding plurality of sensors includes: aligning a first lens stack array relative to a first sensor, varying the spatial relationship between the first lens stack array and the first sensor; capturing images of a known target using the arrangement at different spatial relationships between the first lens stack array and the first sensor; scoring the quality of the captured images; and aligning at least a second lens stack array relative to at least a second sensor, based on the scored images and the corresponding spatial relationships by which the scored images were obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.