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Device for detecting parallelism of two route parallel beams

A parallelism detection and parallel beam technology, which is used in measuring devices, optical devices, instruments, etc., can solve the problems of high cost of large-diameter self-collimating collimator, inability to detect parallel beams, and complicated manufacturing process, and achieve cost Low effect, short cycle time, simple manufacturing process

Inactive Publication Date: 2009-06-24
CHANGCHUN UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of high cost of large-diameter self-collimating collimated light tubes, complex manufacturing process and long cycle, and the inability to detect two parallel beams with a relatively long distance, the invention provides a parallelism detection device for two parallel beams

Method used

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  • Device for detecting parallelism of two route parallel beams
  • Device for detecting parallelism of two route parallel beams
  • Device for detecting parallelism of two route parallel beams

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Embodiment 1

[0014] image 3 It is a schematic diagram of the mechanical support and adjustment structure of the present embodiment. After using for the first time or after adjusting the distance between the pentagonal prisms 4 and 5, it is necessary to perform an optical self-inspection, refer to figure 2 . The first step is to make the self-collimating collimator 1 perform self-collimation on the upper surface of the stationary mercury box 7, so that the two crosses of the self-collimating collimator 1 coincide. In the second step, keep the self-collimating collimator 1 still, place the pentagonal prism 4 in front of the self-collimating collimator 1, move the mercury box 7 to the bottom of the pentagonal prism 5, and then adjust the pitch of the curved plate 9 to make the The two crosses of the self-collimating collimator 1 overlap, indicating that the deflected parallel beam is parallel to the original parallel beam 3, and the self-inspection process is completed. For the detection...

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Abstract

A parallelism detection device for two-way parallel light beams consists of: a self-collimating collimator 1, a pentagonal prism 4, a pentagonal prism 5 and an optical wedge 6; The manufacturing error of pentagonal prism, the angle processing error of pentagonal prism 4 should be controlled within 1 ', and the wedge angle of optical wedge 6 is twice of the angle processing error of pentagonal prism 4; The distance of the light beams 2 and 3 is adjusted accordingly, and the parallelism of the parallel light beams 2 and 3 at different distances can be detected, and the maximum distance of the adjustment can reach 1.5m.

Description

technical field [0001] The invention relates to a parallelism detection device for two parallel beams, and belongs to the technical field of optical axis parallelism detection. Background technique [0002] The current optical path parallelism detection device uses a large-diameter self-collimating collimator. When using it, the two parallel beams to be detected must be included in the aperture of the self-collimating collimator. The position of the two imaging points on the focal plane of the tube judges the parallelism accuracy of the two parallel beams (Reference: Multispectral Optical System Optical Axis Parallelism Combined Test Device, Zhan Qihai, Applied Optics, Issue 05, 2005). The existing technology has the following disadvantages. The aperture of the self-collimating collimator must be larger than the distance between the two parallel beams to be detected, which causes the aperture of the self-collimating collimator to increase with the distance between the two me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/26
Inventor 张磊邓建平刘智颖胡沅
Owner CHANGCHUN UNIV OF SCI & TECH