Method for aligning a plurality of sub-apertures of a multiple-aperture imaging system
US8559017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for aligning a plurality of sub-apertures of a multiple-aperture imaging system including, but not limited to, identifying one sub-aperture to serve as a reference sub-aperture, actuating the reference sub-aperture in a series of piston steps of a known amount, collecting data relating to each image of a plurality of images of a point object, each image corresponding to a respective piston step, compiling the data into a three-dimensional data cube, detecting a plurality of fringes positioned within the three-dimensional data cube, determining the relative location of each sub-aperture of the plurality of sub-apertures based on a location of each fringe of the plurality of fringes within the three-dimensional data cube, and actuating a piston associated with at least one sub-aperture based, at least in part, on the relative location to move the at least one sub-aperture into alignment with another sub-aperture and repeating with each remaining sub-aperture until all sub-apertures are at substantially the same piston height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.