Electronic internal focusing collimator

A collimator and internal focusing technology, which is applied in the field of optical calibration, can solve problems such as large aiming errors and low test efficiency, and achieve the effects of high positioning accuracy, wide coverage of focusing range, and excellent optical axis coaxial linearity

Inactive Publication Date: 2022-01-21
中国空气动力研究与发展中心设备设计与测试技术研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most collimators on the market can only provide crosshair targets, and a few have the function of simulating multiple targets. The human eye is required to aim during use, which introduces large aiming errors and low test efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The electronic internal focusing collimator of this embodiment has the function of self-collimation.

[0056] Adjust the floating objective lens 404 to the self-collimation position, if the focal length , the pixel unit size of the large-target high-resolution image sensor used is:

[0057]

[0058] Through the self-collimation calculation formula, the corresponding angular resolution of a single pixel can be calculated as:

[0059]

[0060] The software resolution after 64 subdivision is 0.03 , usually the detection accuracy of the measurement product is 5-10 times of the resolution, so the self-collimation angle measurement accuracy of the electronic internal focusing collimator of this embodiment can conservatively reach 0.3 .

Embodiment 2

[0062] The electronic internal focusing collimator of this embodiment has the function of a telescope.

[0063] Adjust the floating objective lens 404 to the infinity imaging position, since it directly observes the cross reticle of the autocollimation theodolite, it has a 2-fold relationship with the resolution and accuracy of the autocollimation, so the angle measurement accuracy in the telescope mode can reach 0.5 .

[0064] In the present invention, the photosensitive surface of the photoelectric sensor is directly placed in the optical conjugate plane, and the sensor pixels and the reticle are all made of semiconductor manufacturing technology to ensure their marking accuracy, so the accuracy analysis of Embodiment 1 and Embodiment 2 can be guaranteed. of.

Embodiment 3

[0066] In this embodiment, the electronic internal focusing collimator of the present invention is used to make a portable theodolite detection device.

[0067] Such as image 3 As shown, the portable theodolite detection device includes a heavy-duty tripod P3 located below, a central axis P2 fixed at the central axis position above the heavy-duty tripod P3, a leveling platform 201 is fixed on the top of the central axis P2, and a bottom plate 17 of the light tube combination box P1 Installed on the leveling platform 201;

[0068] The heavy-duty tripod P3 has two upper and lower sections, and the height can be adjusted by lifting the upper section; the opening angle of the heavy-duty tripod P3 ranges from 0° to 30°; the bottom of the heavy-duty tripod P3 is equipped with spikes for fixing;

[0069] Such as Figure 4 As shown, the leveling platform 201 of the central axis P2 is provided with three evenly distributed leveling knobs 202 for adjusting the levelness of the leveli...

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Abstract

The invention discloses an electronic internal focusing collimator. The electronic internal focusing collimator comprises a lens cone, and a photoelectric sensor, a spectroscope, a floating objective lens and a main objective lens which are sequentially arranged from front to back in the lens cone along the optical axis direction; the electronic internal focusing collimator also includes a light source tube, the light source tube is located at the spectroscope and perpendicular to the lens cone, and a light source and a reticle are sequentially arranged in the light source tube from top to bottom in the vertical direction; the electronic internal focusing collimator further comprises an upper computer. According to the electronic internal focusing collimator, the functions of the collimator are expanded, multifunctionality is achieved, and meanwhile the electronic internal focusing collimator has the functions of a universal collimator, a photoelectric collimation collimator, image acquisition, focal length adjustment and the like; the detection process is more scientific, the test result is more reliable, and the measurement precision is higher.

Description

technical field [0001] The invention belongs to the technical field of optical calibration, and in particular relates to an electronic internal focusing collimator. Background technique [0002] At present, most of the commercially available collimators can only provide cross-hair targets, and a few have the function of simulating multiple targets. The process of use requires human eyes to aim, which introduces large aiming errors and low test efficiency. [0003] At present, there is an urgent need to develop an electronic internal focusing collimator. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an electronic internal focusing collimator. [0005] The electronic internal focusing collimator of the present invention is characterized in that the electronic internal focusing collimator includes a lens barrel, a photoelectric sensor, a beam splitter, Floating objective lens and main objective lens; including a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26G02B23/04G02B23/12
CPCG01D5/26G02B23/04G02B23/12
Inventor 赵少美仇召辉刘敦秀罗治军赵余成王洪旭曲鑫艳
Owner 中国空气动力研究与发展中心设备设计与测试技术研究所
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