Three-dimensional imaging device and autofocus adjustment method for three-dimensional imaging device
US9118906B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Apr 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B35/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An autofocus adjustment method for a three-dimensional imaging device, includes: a step of, when a first lens position is not found during search operation of a first focus lens of a first imaging optical system within a first search range, allowing a second focus lens of a second imaging optical system to perform search operation within the first search range, and during the search operation, searching for a second lens position at which the second focus lens focuses on the subject based on a second viewpoint image from the second imaging unit; a step of allowing the second focus lens to move to the second lens position; a step of calculating the first lens position based on the second lens position and a focus position displacement amount preliminarily stored in a storage; and a step of allowing the first focus lens to move to the first lens position thus calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.