Follow focus devices, and remote-control follow focus systems and aerial vehicles with follow focus devices
US10889372B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2017 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | May 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/65
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A follow focus device includes a signal receiver, a controller electrically connected to the signal receiver, and a control interface electrically connected to the controller and configured to be electrically connected to a camera device. The signal receiver is configured to receive a control instruction for controlling a focal length of a lens of the camera device and send the control instruction to the controller. The controller is configured to generate a control signal according to the control instruction and send the control signal to the camera device via the control interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.