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Device and method for measuring numerical aperture of self-focusing lens

A technology of self-focusing lens and numerical aperture, applied in the field of self-focusing lens, can solve the problems of relying on manual work, slow test speed, complicated operation, etc., and achieve the effect of improving accuracy, fast test and good repeatability

Active Publication Date: 2021-08-27
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a numerical aperture measurement device and method for a self-focusing lens to solve the problems of slow test speed, complicated operation, and relying on manual labor for the above-mentioned defects of the prior art.

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  • Device and method for measuring numerical aperture of self-focusing lens
  • Device and method for measuring numerical aperture of self-focusing lens
  • Device and method for measuring numerical aperture of self-focusing lens

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Embodiment Construction

[0025] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.

[0026] like figure 1 As shown, the present invention provides a preferred embodiment of a numerical aperture measurement device for a self-focusing lens.

[0027] A numerical aperture measuring device for a self-focusing lens, comprising a camera 4, a microscopic objective lens 3, a self-focusing lens 2 and a light guide unit, and a translation stage that drives the translation of the light guide unit, and a processing unit 5 connected to the camera 4, the The light guide unit is provided with strip figure 1 ; Wherein, the camera 4, the microscopic objective lens 3 and the self-focusing lens 2 are arranged on a common optical axis; the bar-shaped figure 1 The light transmission gap is formed by film sheets; the light of the light guide unit passes through the strip figure 1 The light transmission gap penetrates and reaches the self-focu...

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Abstract

The invention relates to the field of self-focusing lenses, in particular to a device and method for measuring the numerical aperture of a self-focusing lens. A numerical aperture measurement device for a self-focusing lens, comprising a camera, a microscopic objective lens, a self-focusing lens, and a light guide unit, a translation stage that drives the translation of the light guide unit, and a processing unit connected to the camera, on the light guide unit Features a bar graph. The beneficial effect of the present invention is that, compared with the prior art, the present invention provides a numerical aperture measuring device and method for self-focusing lenses with simple operation, fast test, automatic calculation, accurate and objective results, based on the computer processor to image The data processing realizes the high-precision measurement of the numerical aperture of the self-focusing lens.

Description

technical field [0001] The invention relates to the field of self-focusing lenses, in particular to a device and method for measuring the numerical aperture of a self-focusing lens. Background technique [0002] Self-focusing lens materials are also called gradient refractive index materials, which refer to cylindrical optical lenses whose refractive index distribution is gradually changing along the radial direction. The self-focusing lens is small in size, light in weight, has focusing and collimating functions, and has high coupling efficiency. Since the refractive index change in the self-focusing lens can be adjusted, when it is used in a complex optical system, it can reduce the number of optical elements in the system, and can replace aspheric optical elements in some occasions. In addition, the geometric shape of this optical element is simple, and it is easy to perform optical processing, and the system using this optical element has the advantages of compact struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
CPCG01M11/0257
Inventor 邢春蕾许峰邹快盛
Owner SUZHOU UNIV