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Installation and adjustment method of infrared lenses

An assembly and adjustment method and infrared lens technology, applied in the optical field, can solve problems such as failure to meet assembly and adjustment tolerance requirements, difficult assembly process guarantees, etc., to achieve high-precision adjustment, ensure reset accuracy, and improve measurement accuracy.

Active Publication Date: 2013-03-27
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

The traditional infrared lens assembly process can only satisfy the infrared lens with loose assembly tolerance, and the lens with assembly tolerance exceeding 1′ is difficult to be guaranteed by the traditional assembly process
[0003] With the continuous development of space remote sensors, the requirements for the imaging quality of infrared cameras continue to increase, and the tolerances of infrared optical lenses are also continuously improved. The assembly tolerance of many lenses is less than 10″, and the traditional machining process is far from being able to meet the requirements of the system. Assembly Tolerance Requirements

Method used

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  • Installation and adjustment method of infrared lenses
  • Installation and adjustment method of infrared lenses
  • Installation and adjustment method of infrared lenses

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Embodiment Construction

[0021] Such as figure 1 As shown, it is a principle diagram of the method of the present invention, the lens barrel 3 is fixed on the turntable 2, the first lens assembly 10 is installed on the lens step, the dial indicator 4 monitors the outer circle reference plane of the lens barrel, and the dial gauge 5 monitors the lens barrel The end face datum plane, the double optical path centering instrument 1 monitors the spherical center images of the two faces of the lens assembly.

[0022] Such as figure 2 As shown, it is a schematic diagram of the first lens assembly 10 of the present invention, the first lens 9 is installed and fixed in the frame 7, the pin 6 is used to position the first lens assembly, and the screw 8 is used to fix the first lens assembly.

[0023] The structural composition and installation method of the second lens assembly 11 and the third lens assembly 12 are the same as those of the first lens assembly 10 .

[0024] Such as image 3 Shown is a schema...

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Abstract

The invention provides an installation and adjustment method of infrared lenses. The installation and adjustment method comprises the steps of utilizing a dual-optical-path centering instrument to measure rocking amount of sphere center images of two lens surfaces of an infrared single lens assembly, adjusting translation and inclination of the infrared single lens assembly, monitoring the rocking amount of the sphere center images, striking dowels to position the infrared single lens assembly, taking off the infrared single lens assembly, positioning other infrared single lens assemblies through the same method, and installing the infrared single lens assemblies into lens cones to complete the installation and adjustment of the lenses. By means of the installation and adjustment method of the infrared lenses, high-precision installation and adjustment of the infrared lenses can be achieved, and the problem that most of visible light cannot penetrate infrared lens materials and the centering measurement of a system cannot be performed is solved.

Description

technical field [0001] The invention belongs to the field of optics and relates to a method for installing and adjusting an infrared lens. Background technique [0002] The existing dual optical path centering instrument can only center the reflector and the lens of visible light material, and the infrared material is mostly silicon, germanium and other materials that are opaque to visible light, so it is impossible to directly center each lens of the infrared lens with the existing dual optical path centering instrument. Heart. The assembly of the traditional infrared lens is mainly guaranteed by mechanical processing. After the precise machining of the lens barrel, the lens is directly loaded into the lens barrel, or the centering device is used to center the single side of each lens. The traditional infrared lens assembly process can only satisfy the infrared lens with loose assembly tolerance, and it is difficult to guarantee the lens with assembly tolerance exceeding 1...

Claims

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Application Information

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IPC IPC(8): G02B7/02
Inventor 邢辉焦文春穆生博李春雷
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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