Follow focus devices, and remote-control follow focus systems and aerial vehicles with follow focus devices
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United States of America Patent
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Jan 12, 2021
Grant Date -
Feb 15, 2018
app pub date -
Oct 25, 2017
filing date -
Apr 29, 2015
priority date (Note) -
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status (Latency Note)
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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.
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