Optical equipment
US8699869B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2012 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical equipment which can prevent image blurring and enable a lens to be stopped in a position requiring low power consumption is provided. The optical equipment includes a lens driver supplied with electric power from a camera body to drive a focusing lens. The equipment further includes an aperture driver that drives an aperture and a drive controller that positions the focusing lens to minimize power consumption and controls the aperture driver during opening of the aperture so that the focal position of the focusing lens falls within a focal depth. In this way, a lens position-controller that controls an AF motor can stop the lens in a position that does not cause image blur and reduces power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.