Method and apparatus for adjusting the picture definition on the camera lens of a motion picture camera
US8253920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Oct 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for adjusting the picture definition on the camera lens of a motion picture camera. A drive unit is connected to the camera lens which is driven, in the manual focusing operation, by an picture definition handwheel of an operating unit, which displays the adjusted picture definition on a scale dial, and, in the automatic focusing operation, by an auto-focusing device for measuring the distance from an object to be recorded by the motion picture camera and outputting control signals to an electromechanical actuator, which is connected to the picture definition handwheel or to the scale dial of the operating unit, for adjusting or readjusting the picture definition adjusted on the picture definition handwheel or displayed on the scale dial as a function of the distance measured from the object to be recorded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.