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Numerical aperture measuring device and method of self-focusing lens

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

Active Publication Date: 2020-01-14
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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  • Numerical aperture measuring device and method of self-focusing lens
  • Numerical aperture measuring device and method of self-focusing lens
  • Numerical aperture measuring device and method 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] Such as 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-f...

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Abstract

The invention relates to the self-focusing lens field, and especially relates to a numerical aperture measuring device and method of a self-focusing lens. The numerical aperture measuring device of the self-focusing lens comprises a camera, a microscope objective, the self-focusing lens, a light guide unit, a translation stage for driving the light guide unit to translate, and a processing unit connected with the camera. A bar chart is arranged on the light guide unit. The device and the method have advantages that compared with the prior art, by using the numerical aperture measuring device and method of the self-focusing lens, operation is simple, testing is rapid, automatic calculation is performed and a result is accurate and objective; and high-precision numerical aperture measurementof the self-focusing lens is achieved on the basis of image data processing of a computer processor.

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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IPC IPC(8): G01M11/02
CPCG01M11/0257
Inventor 邢春蕾许峰邹快盛
Owner SUZHOU UNIV