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A Large-Range Expansion Optical Axis Parallelism Detection Device

A parallel detection and large-scale technology, applied in the direction of measuring devices, using optical devices, testing optical properties, etc., can solve the problem of large influence of its own caliber, and achieve the effect of small size and light weight

Active Publication Date: 2020-11-27
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that is greatly affected by its own caliber, the present invention provides a large-scale diameter-expanding optical axis parallelism detection device. The characteristic of returning light realizes the detection of parallel light; the telescopic lens barrel is used to adjust the distance between the right-angle prism and the right-angle roof prism to realize a wide range of diameter expansion; the double optical wedge is used to realize the self-calibration of the device

Method used

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  • A Large-Range Expansion Optical Axis Parallelism Detection Device
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  • A Large-Range Expansion Optical Axis Parallelism Detection Device

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Effect test

Embodiment 1

[0017] Such as figure 1 Shown, a kind of optical axis parallelism detection device of large-scale diameter expansion, comprises: retractable lens barrel 1-1, right-angle prism 1-2, right-angle roof prism 1-3 and double optical wedge 1-4; The prism 1-2 and the rectangular roof prism 1-3 are respectively placed at the two ends of the telescopic lens barrel 1-1; the telescopic lens barrel 1-1 can continuously adjust the rectangular prism 1-2 and the rectangular roof prism 1-1 in a large range The distance between 3 is fixed by screws after adjustment; the telescopic lens barrel 1-1 has a light-through port on the incident surface side of the right angle prism 1-2 and the exit surface side of the right angle roof prism 1-3; The light wedge 1-4 is placed on one side of the exit surface of the rectangular roof prism 1-3; the incident light emitted by the light emitting system of the equipment to be inspected is reflected by the rectangular prism 1-2 and then enters the rectangular r...

Embodiment 2

[0023] Such as figure 2 Shown, a kind of optical axis parallelism detection device of large-scale diameter expansion, comprises: retractable lens barrel 2-1, beam splitting prism 2-2, right angle roof prism 2-3 and double optical wedge 2-4; The prism 2-2 and the rectangular roof prism 2-3 are placed at the two ends of the telescopic lens barrel 2-1 respectively; One side of the exit surface of the rectangular roof prism 2-3 has a light port respectively, and the telescopic lens barrel 2-1 can continuously adjust the distance between the dichroic prism 2-2 and the rectangular roof prism 2-3 in a large range; The double wedge 2-4 is placed on one side of the exit surface of the rectangular roof prism 2-3; part of the incident light emitted by the light emitting system of the equipment to be inspected passes through the beam splitter 2-2 and enters the first receiving system of the equipment to be inspected, and the other part Incident to the right-angle roof prism 2-3, reflect...

Embodiment 3

[0029] Such as image 3Shown, a kind of optical axis parallelism detecting device of large-scale diameter expansion, comprises: the first telescopic lens barrel 3-1, the second telescopic lens barrel 3-2, dichroic prism 3-3, the first rectangular roof prism 3- 4. Right angle prism 3-5, second right angle roof prism 3-6, first double optical wedge 3-7, second double optical wedge 3-8 and rotating pair 3-9; wherein, the second telescopic lens barrel 3- 2. Connect with the first telescopic lens barrel 3-1 through the rotating pair 3-9; the beam splitting prism 3-3 and the first rectangular roof prism 3-4 are arranged respectively at the two ends of the first telescopic lens barrel 3-1; A rectangular prism 3-5 and a second rectangular roof prism 3-6 are respectively arranged at both ends of the telescopic lens barrel 3-2; a first double optical wedge 3-7 is arranged on the exit surface side of the first rectangular roof prism 3-4; The second double optical wedge 3-8 is set on one...

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Abstract

The invention discloses an optical axis parallelism detection device with wide-range hole enlargement, belongs to the technical field of optical parallelism detection and solves the problem of big influence from diameter thereof in the prior art. The device comprises an extension type lens barrel, a rectangular prism, a rectangular ridge prism and double wedges; the rectangular prism and the rectangular ridge prism are arranged at the two ends of the extension type lens barrel respectively; the extension type lens barrel is provided with a light vent hole respectively in one side of the incident plane of the rectangular prism and one side of the exit plane of the rectangular ridge prism; the double wedges are arranged at one side of the exit plane of the rectangular ridge prism; and incident light emitted by a light emitting system of a to-be-detected device after passing through the rectangular prism enters the rectangular ridge prism for reflection, and the reflected light enters a receiving system of the to-be-detected device after passing through the double wedges. The device has a small volume and light weight, can realize detection of parallel beams with relatively big spatial distance and is suitable for wide-spectrum detection.

Description

technical field [0001] The invention belongs to the technical field of optical parallelism detection, and in particular relates to an optical axis parallelism detection device with large-scale diameter expansion. Background technique [0002] Some optoelectronic devices have multiple optical systems such as infrared, visible sensors and laser ranging, and capture, track and measure the same target. In order to ensure the consistency of the measurement results, the optical axes of multiple optical systems are required to be parallel, and the optical axis parallelism detection device is the device used to complete the detection of the optical axis parallelism of the photoelectric equipment of the sensor. Commonly used multi-spectral optical axis parallelism testing methods mainly include projection target plate method, parallel light tube method and pentaprism method, etc. Among them, the test accuracy of the parallel light tube method is relatively high. So far, the paralleli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02G01B11/26
Inventor 张磊韩业明郑阳贺文俊高天元王加科
Owner CHANGCHUN UNIV OF SCI & TECH
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