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Camera auto focus and zoom device

An automatic focus and automatic zoom technology, applied in the field of virtual studio, can solve the problems of no relevant description, low efficiency, inconvenient operation, etc., and achieve the effect of strong versatility, high efficiency, and convenient operation

Pending Publication Date: 2017-10-03
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production of movies or TV programs, when it is necessary to use virtual studio technology to produce special effects, it is often necessary to quickly and accurately adjust and obtain the focal length and object distance of the camera lens to capture beautiful pictures. The applied camera needs to manually adjust the focus and zoom rings on the lens to obtain the required focal length and object distance, which is not only inefficient, but also extremely inconvenient to operate
Therefore be badly in need of a kind of device that can automatically adjust and obtain camera lens focus, zoom, but there is no related description in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0022] combine figure 1 , a kind of camera automatic focus, zoom device of the present invention, is installed on the camera lens, comprises casing, outer cover. The shell is fixed on the base, and the outer cover is fixed on the shell.

[0023] combine figure 2 , The device of the present invention also includes a base, a camera auto-focusing device, and a camera auto-zooming device, the base is fixed on the camera lens, and the camera auto-focusing device and the camera auto-zooming device have the same structure and are fixed on the base.

[0024] combine image 3 , the camera automatic focus device includes a fixed plate, an encoder, a servo motor, a large gear, and a pinion, the fixed plate is used to fix the camera focus device on the base, the servo motor and the encoder are fixed on one side of the fixed plate, and the pinion It is arranged on the shaft end of the servo motor, the large gear is arranged on the shaft end of the encoder, the small gear meshes with th...

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PUM

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Abstract

The invention discloses a camera auto focus and zoom device. The device is arranged on a camera lens, can automatically adjust the lens focal length and object distance through a computer or a remote terminal, and feeds back lens focus and zoom information. The device comprises a base, a camera auto focus device. The base is fixed on the camera lens. The camera auto focus device is fixed on the base, and comprises a fixation plate, an encoder, a servo motor, a large gear and a pinion. The fixation plate is used for fixing the camera focus device on the base. The servo motor and the encoder are fixed on the fixation plate. The pinion is arranged on the shaft end of the servo motor. The pinion and the large gear are meshed. The large gear and a focusing ring gear on the lens are meshed. According to the invention, the device automatically adjusts focusing and zooming of a camera through the computer or the remote terminal, and accurately acquires focus and zoom information of the lens through the encoder when the focal length and the object distance are changed.

Description

technical field [0001] The invention belongs to the technical field of virtual studios, in particular to a camera automatic focusing and zooming device for virtual studios. Background technique [0002] In the production of movies or TV programs, when it is necessary to use virtual studio technology to produce special effects, it is often necessary to quickly and accurately adjust and obtain the focal length and object distance of the camera lens to capture beautiful pictures. The applied camera needs to manually adjust the focus and zoom rings on the lens to obtain the required focal length and object distance, which is not only inefficient, but also extremely inconvenient to operate. Therefore be badly in need of a kind of device that can automatically adjust and obtain camera lens focus, zoom, but there is no related description in the prior art. Contents of the invention [0003] The object of the present invention is to provide a device for automatically focusing and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232
CPCH04N23/50H04N23/66H04N23/67
Inventor 欧屹刘丙凯黄俊伟冯虎田刘军
Owner NANJING UNIV OF SCI & TECH
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