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Electric continuous zooming mechanism with high-stability image surface

A zoom mechanism, high stability technology, applied in the direction of installation, optics, instruments, etc., can solve the problems of poor image quality, processing precision limit design software, poor image plane stability, etc., to improve imaging quality, novel structure, and improve precision Effect

Active Publication Date: 2013-10-02
NANJING NORTH OPTICAL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of machining accuracy and the constraints of design software, the stability of the image plane is poor and the image quality is not good during the zooming process.

Method used

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  • Electric continuous zooming mechanism with high-stability image surface
  • Electric continuous zooming mechanism with high-stability image surface
  • Electric continuous zooming mechanism with high-stability image surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024]Referring to Fig. 1 embodiment, zoom lens group 1, motor group 2, the first limit switch 4-1, the second limit switch 4-2 are respectively fixed on the casing 3, outside the zoom in zoom lens group 1 A threaded hole is set in the middle of the barrel on the barrel 14, and a contact 5 capable of contacting the first limit switch 4-1 and the second limit switch 4-2 is set in the threaded hole, and the first limit switch 4-1 It is set at one end of the casing 3, and the second limit switch 4-2 is set at the other end of the casing 3, and the installation positions of the first limit switch 4-1 and the second limit switch 4-2 are relative to the zoom outer cylinder 14 shaft symmetry. The zoom outer cylinder 14 is sleeved on the zoom inner cylinder 13, the zoom inner cylinder 13 is fixed on the casing 3 through the bearing seat 15, the opening pressure ring 16 compresses the axial direction of the zoom inner cylinder 13 on the bearing seat 15, and passes through The key 17 c...

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Abstract

The invention discloses an electric continuous zooming mechanism with a high-stability image surface. The electric continuous zooming mechanism comprises a zoom lens group, a motor group, a shell, a first limit switch, a second limit switch and a contact, wherein the zoom lens group, the motor group, the first limit switch and the second limit switch are respectively fixed on the shell, the zoom lens group comprises a zoom guide rail group, a zoom light group, a compensating light group, a first cam group and a second cam group, the zoom guide rail group is a gapless rolling guide rail, and comprises an inner zoom barrel, an outer zoom barrel, a bearing seat, an opened pressing ring, a key, a first ball and a second ball. According to the invention, stability of the image surface during continuous zoom in specific environment such as temperature, impact and vibration can be realized, and imaging quality of a zoom system is improved.

Description

technical field [0001] The invention belongs to the field of photoelectric technology, in particular to an electric continuous zoom mechanism with high and stable image plane. Background technique [0002] Due to the mature technology of the fixed-focus optical system, simple structure, stable image plane and good image quality, it is widely used in military and civilian optical systems. In order to solve the long-distance and short-distance target observation, most of them use the lens switching method. However, it is easy to lose the target during the switching process, and the operation is difficult. The continuous zoom system can capture and observe the target in time. However, due to the limitation of machining accuracy and the constraints of design software, the stability of the image plane is poor and the image quality is not good during the zooming process. Contents of the invention [0003] The object of the present invention is to provide a motorized continuou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/10
Inventor 黄银秀陈国胜袁晓敏唐晓冬郭晓丹魏伟曹月芹章海峰申宝张璋徐哲卢国俊陈耀波王芹
Owner NANJING NORTH OPTICAL ELECTRONICS
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