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Device for detecting parallelism of two route parallel beams

A technology of parallelism detection and parallel beams, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of high cost of large-diameter self-collimating collimated light tubes, inability to detect parallel beams, complicated manufacturing process, etc. The effect of low cost, short cycle time and simple manufacturing process

Inactive Publication Date: 2008-07-23
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • 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] Fig. 3 is a schematic diagram of the mechanical support and adjustment structure of this embodiment. After using for the first time or after adjusting the distance between the pentagonal prisms 4 and 5, an optical self-check will be performed, as shown in FIG. 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 process of this embodiment,...

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Abstract

The invention relates to a parallelism detection device for two parallel beams, which comprises a self-aligned straight parallel collimator 1, two pentagonal prisms 4 and 5 and an optical wedge 6; wherein the pentagonal prism 4 is glued to the optical wedge 6 for the purpose to correct manufacturing error of the pentagonal prisms 4 which is to be controlled within 1', and wedge angle of the optical wedge 6 is as much as twice of the manufacturing error of the pentagonal prisms 4; distance between the two pentagonal prisms 4 and 5 can be adjusted corresponding to distance changes between the two parallel beams 2 and 3 so that parallelism between two parallel beams 2 and 3 with different distances can be detectable, with maximum distance of adjustment to be 1.5 m.

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