Vehicle-mounted photoelectric equipment dual-field-of-view rotation switching varifocal mechanism

A photoelectric device and dual-field of view technology, applied in optics, cameras, optical components, etc., can solve the problems of large footprint and poor positioning stability

Inactive Publication Date: 2018-05-29
BEIJING INST OF REMOTE SENSING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vehicle-mounted optoelectronic equipment dual-view rotary switching zoom mechanism, which solves the problems of large occupied volume and poor positioning stability existing in traditional zoom mechanisms

Method used

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  • Vehicle-mounted photoelectric equipment dual-field-of-view rotation switching varifocal mechanism
  • Vehicle-mounted photoelectric equipment dual-field-of-view rotation switching varifocal mechanism

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Embodiment Construction

[0014] A vehicle-mounted optoelectronic equipment dual-field rotary switching zoom mechanism, including: a main frame 1, and also includes: a rotary zoom frame 2, an upper rotation shaft 3, a lower rotation shaft 4, a motor drive device 5, a zoom lens group 6, Transmission gear pair 7, mechanical limit device 8, photoelectric sensor 9 and locking device 10. Wherein, the photoelectric sensor 9 assembly includes: a photoelectric sensor 9 and a fan-shaped baffle.

[0015] The main frame 1 is a square frame structure, with bearing mounting holes on the upper and lower ends, and weight-reducing grooves on the left and right sides; the rotating zoom frame 2 is coaxially installed in the main frame 1; the upper rotating shaft 3 and the lower rotating shaft 4 are stepped shafts, and the main frame 1 is connected with the rotating zoom frame 2 through a set of angular contact bearings; the motor drive device 5 is installed on the right side of the main frame 1 through a bracket; the zo...

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Abstract

The invention discloses a vehicle-mounted photoelectric equipment dual-field-of-view rotation switching varifocal mechanism comprising a main framework (1). The mechanism also comprises a rotation varifocal frame (2), an upper rotation shaft (3), a lower rotation shaft (4), a motor driving device (5), a varifocal mirror group (6), a drive gear pair (7), a mechanical limiting device (8), a photoelectric sensor (9) and a locking device (10). Firstly the locking device (10) is released and then the motor driving device (5) drives the varifocal mirror group (6) to rotate to cut in and out throughgear driving. When the varifocal mirror group (6) is close to the target position, the photoelectric limiting device is started to emit a signal to control the motor to move at a low speed. The mechanical limiting device (8) is installed at the target point, and the locking device (10) is started when the motor reaches the target point. High precision of positioning and high stability of the system can be realized through the photoelectric switch, the electromagnet and the mechanical limiting switch so that the problems of large volume occupation and poor positioning stability of the conventional varifocal mechanism can be solved.

Description

technical field [0001] The invention relates to a rotary switching zoom mechanism, in particular to a rotary switching zoom mechanism with dual viewing fields for vehicle-mounted photoelectric equipment. Background technique [0002] The dual-field infrared optical system can provide two images with different magnifications and different fields of view, which can not only search for targets in a wide range, but also be used to identify, analyze and confirm specific targets, which is not possible with fixed-focus systems comparable. [0003] The traditional dual field of view switching zoom mechanism is divided into two categories: one is a linear cut-in zoom mechanism, and the other is a reverse cut-in zoom mechanism. The linear cut-in zoom mechanism uses the lead screw and guide rail to radially cut in and out the zoom lens group from one side of the lens, and the flip-in type zoom mechanism uses the flip mechanism to turn over and cut in and out the zoom lens group from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B17/14G02B15/02G03B30/00
CPCG02B15/02G03B17/14
Inventor 任艳红姚都
Owner BEIJING INST OF REMOTE SENSING EQUIP
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