Automati focus adjusting mechanism of camera

An automatic focusing, camera technology, applied in the focusing device of the camera, the focusing device of the camera, the projector, etc.

An automatic focusing, camera technology, applied in the focusing device of the camera, the focusing device of the camera, the projector, etc.

CN1517775AInactive Publication Date: 2004-08-04YUDONG PLASMA TECH
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  • Automati focus adjusting mechanism of camera
  • Automati focus adjusting mechanism of camera
  • Automati focus adjusting mechanism of camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 , figure 1 It is a perspective view of the automatic focusing mechanism 10 of the present invention. The automatic focusing mechanism 10 includes a first hollow cylinder 12 , a first lens 16 , an insulating coil 18 and a second lens 22 . The first cylinder 12 and the first lens 16 are attached to an outer frame (frame) 14 (shown in figure 2 A), the coil 18 is wound on the first cylinder 12 , and a second hollow cylinder 20 is used to support a second lens 22 . The second cylinder 20 covers the first cylinder 12 and the coil 18 , and the second cylinder 20 can move along the central axis of the first cylinder 12 . The first and second lenses 16 , 22 are also arranged on the central axis of the first cylinder 12 . The first and second cylinders 12, 20 are an elastic member, i.e. a spring 24 (shown in figure 2 ) are connected to each other. The second cylinder 20 is made of a metal material, such as high magnetic metal such as iron, or magnetized iron, ...

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Abstract

An automatic focusing mechanism of camera is composed of external frame including the hollow first cylinder with a circular hole, the first lens fixed to external frame and arranged coaxially with said circular hole, coil surrounding the first cylinder, the hollow second cylinder containing the first cylinder in it for relatively and coaxially moving, the second lens fixed in the second cylinder and coaxial with said circular hole, and an elastic part for linking the first cylinder with the second one. When a current flows through said coil, the second focus distance between both lenses is generated. If there is no current, the first focuse distance is held.

Description

technical field [0001] The invention provides a camera, in particular relates to a camera capable of automatic focusing. Background technique [0002] The vast majority of cameras today are equipped with an automatic focus device, and the automatic focus device allows users to no longer need to manually adjust the focus, and thus allows users to reduce errors when adjusting the focus and makes today's automatic focus The camera is easier to use. [0003] The existing automatic focusing device uses a microcontroller to adjust the relative position of the lens group in the lens. In addition, the microcontroller can also adjust other devices (such as infrared rays) to measure the actual distance or the ideal distance. . Once the distance between the camera and the object is determined, the microcontroller can control the autofocus device to arrange the position of the lens so that the object is correctly focused. [0004] Generally, low-cost automatic cameras usually use a m...

Claims

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Application Information

Patent Timeline
04 Aug 2004
Publication
CN1517775A
IPC
G02B7/08
CPC
G02B7/08
Inventors
高钧添