Compact double-prism scanning device

A scanning device, double prism technology, applied in electromechanical devices, electric components, instruments, etc., can solve the problems of difficult to overcome the influence of friction, large space occupied by gear transmission, low control precision, etc., to reduce jitter, compact structure, balance Effect of Moment of Inertia

Active Publication Date: 2022-07-26
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005]In the existing double wedge prism beam deflection mechanical device, the variable load system driven directly by linear motor (patent CN1713028A) is difficult to overcome the influence of friction, so that Accuracy is difficult to guarantee
The prism mechanism driven by the synchronous belt (patent CN108188806A) has large volume, low precision and is sensitive to external vibration
The double-bearing prism structure (patent CN109884769A) adopts the stepping motor with integrated reduction box and double bearings to have certain stability, but the gear drive takes up a lot of space and the control accuracy is not high

Method used

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  • Compact double-prism scanning device
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  • Compact double-prism scanning device

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Embodiment Construction

[0034] In order to make the technical solutions and advantages of the present application clearer, the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1-6 As shown, the compact dual prism scanning device includes a first wedge prism system 100 and a second wedge prism system 200, wherein the first wedge prism system 100 includes a first housing 110, a first bearing 120, a first wedge prism system a lens barrel 130, a first wedge prism 140, a first pressure ring 150 and a first drive motor 160; the second wedge prism 240 system 200 includes a second housing 210, a second lens barrel 230, a second wedge prism 240, the second drive motor 260, the second bearing 220 and the second pressure ring 250;

[0036] The first lens barrel 130 is installed in the first housing 110 through the first bearing 120 , the first wedge prism 140 is installed in the first lens barrel 130 , and the firs...

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Abstract

The invention relates to a compact double-prism scanning device, which comprises a first wedge-shaped prism system and a second wedge-shaped prism system which are basically and symmetrically arranged except a shell, and is characterized in that the first wedge-shaped prism system comprises a first shell, a first bearing, a first lens cone, a first wedge-shaped prism, a first pressing ring and a first driving motor; wherein the first lens barrel is installed in the first shell through a first bearing, the first wedge-shaped prism is installed in the first lens barrel, and at least part of the first pressing ring is inserted into the first lens barrel and used for axially fixing the first prism; a stator of the first motor is fixed on the inner side of the first shell; a rotor of the first motor is fixed on the first lens cone. The first shell and the second shell are axially connected and fixed, the first wedge-shaped prism and the second wedge-shaped prism are symmetrically arranged, and the plane ends of the first wedge-shaped prism and the second wedge-shaped prism are arranged close to each other.

Description

technical field [0001] The invention relates to optical machinery, in particular to a compact double-prism scanning device, which can be used for high-precision target tracking, azimuth pointing, area scanning and the like. Background technique [0002] In modern military warfare, based on the characteristics of high precision, good stability, high speed and high energy of laser, it has important application value in infrared countermeasures, modern precision guidance, aerial imaging, free space optical communication and other fields. Research on beam pointing control technology It is very important to adjust the beam direction and change the imaging boresight. The development of optoelectronic devices has attracted more and more attention from countries all over the world, and the core content is the laser transmitter and the capture, tracking and aiming device. [0003] The traditional photoelectric pointing devices are mainly gimbal turrets and fast reflectors. The multi...

Claims

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Application Information

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IPC IPC(8): G02B26/10H02K7/14
CPCG02B26/108H02K7/14
Inventor 彭高亮张博陈朝刘世伟林鸿钊
Owner HARBIN INST OF TECH
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