Follow-focus wheel assembly, handheld device and photographing system
US12197105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Nov 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A handheld follow-focus device may include a single handheld structure including a mounting part at a first side of the handheld structure, including an operation port and a control panel, and a handheld part at a second side of the handheld structure; a connecting part configured to connect to a photographing device; and a follow-focus wheel in the mounting part and partially extending out of the operation port to adjust, through rotation, a focus of the photographing device, where a position of the follow-focus wheel and a position of the control panel is arranged to allow a user to operate on the control panel while performing a focusing operation to the follow-focus wheel with a single hand. The device has a simple and compact structure, and can be miniaturized. It meets the requirement of performing a focusing operation with a single hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.