Infrared lens precision centering device and centering method on basis of low-stress clamping

A centering device and low-stress technology, which can be used in installation, optics, instruments, etc., can solve the problem of easy chipping of the lens, achieve the effect of overcoming the adjustment error and improving the adjustment accuracy

Active Publication Date: 2018-05-01
BEIJING INST OF REMOTE SENSING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a precision centering device and centering method for infrared lenses based on low-stress clamping, which solves the problem of being blocked and clamped by the spherical center of the lower surface of the post-installed lens during the process of installing and adjusting the infrared optical system using a dual optical path centering instrument The problem that the process lens is easy to collapse

Method used

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  • Infrared lens precision centering device and centering method on basis of low-stress clamping
  • Infrared lens precision centering device and centering method on basis of low-stress clamping

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Embodiment 1

[0028] A precision centering device for infrared lenses based on low-stress clamping includes: a two-dimensional rotation mechanism 1, a three-dimensional translation mechanism 2, a cantilever mechanism 3, and also includes: a positioning conversion lens 4 and a micro-stress clamping positioning device 5.

[0029] The micro-stress clamping and positioning device 5 includes a suction cup 7 and a bracket 6, wherein the bracket 6 is a hollow cylindrical structure, and the center hole of the bracket 6 has an annular mounting platform. The suction cup 7 is circular and coaxially bonded to the bottom end of the bracket 6 . Wherein the positioning conversion lens 4 is bonded on the annular mounting platform in the central circular hole of the support 6 .

[0030] The two-dimensional rotating mechanism 1 is a rotating mechanism capable of translation in two directions perpendicular to each other. The three-dimensional adjustment mechanism is an adjustment mechanism capable of moving ...

Embodiment 2

[0034] The specific steps of an infrared lens precision centering method based on low stress clamping are:

[0035] Step 1 Calibration of the lens to be installed

[0036] Pre-install the lens to be installed in the lens barrel, observe the spherical center image of the upper and lower surfaces of the lens to be installed on the turntable of the double optical path centering instrument, and adjust the translation and tilt of the centering instrument turntable so that the optical axis of the lens to be installed is coaxial with the rotary axis of the centering instrument turntable .

[0037] The second step is to position the conversion lens 4 and calibrate

[0038] Put the entire precision centering device into the upper optical path of the double optical path centering instrument, use the upper optical path of the centering instrument to observe the upper and lower spherical center images of the positioning conversion lens 4, and adjust the optical axis of the positioning co...

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Abstract

The invention discloses an infrared lens precision centering device and a centering method on the basis of low-stress clamping. The infrared lens precision centering device comprises a two-dimensionalrotary mechanism (1), a three-dimensional translation mechanism (2), a cantilever mechanism (3), a positioning convertible lens (4) and a micro-stress clamping positioning device (5). The micro-stress clamping positioning device (5) comprises a sucker (7) and a support (6), the two-dimensional rotary mechanism (1) is fixed to the micro-stress clamping positioning device (5) and is positioned right above the micro-stress clamping positioning device (5), the three-dimensional translation mechanism (2) is fixedly connected with the two-dimensional rotary mechanism (1) by the cantilever mechanism(3), and the positioning convertible lens (4) is adhered on an annular mounting table in a central circular hole in the support (6). The infrared lens precision centering device and the centering method have the advantages that the practical problems of inaccurate positioning of lenses mounted in later periods, fragility of clamped optical materials and the like in procedures for adjusting infrared optical systems by the aid of double-optical-path centering instruments can be solved by the aid of the infrared lens precision centering device, and infrared optical systems can be efficiently adjusted in a high-precision manner by the aid of the infrared lens precision centering device and the centering method.

Description

technical field [0001] The invention relates to a precision centering device and a centering method for an infrared lens, in particular to a precision centering device and a centering method for an infrared lens based on low-stress clamping. Background technique [0002] The infrared transmission optical system used in the field of aerospace remote sensing has the characteristics of many optical elements, many separation variables, complex structure, and the imaging quality is required to be close to the diffraction limit, which has strict requirements for optical adjustment. The traditional transmission optical system generally adopts the direct mounting and centering method, that is, the eccentricity and inclination of each optical lens are sequentially adjusted to the preset tolerance range on the double optical path centering instrument. However, when this method is installed and adjusted, due to the occlusion of the installed lens, the spherical center image of the lowe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02
CPCG02B7/023
Inventor 白静邓准程军梅那佳曹成真卢治兵
Owner BEIJING INST OF REMOTE SENSING EQUIP
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