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Eccentricity detecting method for spherical surface optic element with small caliber and large curvature

A spherical optical and eccentric detection technology, which is applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of rapid batch detection, difficult measurement, and high measurement cost at the unfavorable production site, and achieves the benefits of rapid batch detection and low measurement costs. , the effect of easy measurement

Active Publication Date: 2014-05-28
西安北方捷瑞光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current processing technology, there is no practical method for small-caliber and large-curvature spherical optical elements, and there are certain disadvantages in the actual detection process: high measurement cost, difficult measurement, and not conducive to batch rapid detection on the production site

Method used

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  • Eccentricity detecting method for spherical surface optic element with small caliber and large curvature
  • Eccentricity detecting method for spherical surface optic element with small caliber and large curvature
  • Eccentricity detecting method for spherical surface optic element with small caliber and large curvature

Examples

Experimental program
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Effect test

Embodiment 1

[0022] 1) Place the standard plane 4 on the displacement device 5 with reading measurement, and place the displacement device 5 with reading measurement under the microscope or magnifying glass 6 at the same time, see figure 1 , figure 2 shown;

[0023] 2) Use the positioning tool to make the spherical center of the workpiece 2 to be measured perpendicular to the standard plane 4, and the spherical surface of the workpiece 2 to be measured is close to the standard plane 4, and observe the spherical surface of the workpiece 2 to be measured through a microscope or a magnifying glass 6 (magnification is 20 times) A clear Newton's ring is formed between the two contact surfaces with the standard plane 4, see image 3 shown;

[0024] The specific positioning steps are as follows:

[0025] a) Use at least two positioning blocks: positioning block I 1 and positioning block II 3 to simultaneously fix the workpiece 2 to be measured from two adjacent surfaces perpendicular to the s...

Embodiment 2

[0031] 1) Place the standard plane 4 on the displacement device 5 with reading measurement, and place the displacement device 5 with reading measurement under the microscope or magnifying glass 6 at the same time;

[0032] 2) Use the positioning tool to make the spherical center of the workpiece 2 to be measured perpendicular to the standard plane 4, and the spherical surface of the workpiece 2 to be measured is close to the standard plane 4, and observe the spherical surface of the workpiece 2 to be measured through a microscope or a magnifying glass 6 (magnification is 50 times) A clear Newton's ring is formed between the two contact surfaces with the standard plane 4;

[0033] The specific positioning steps are as follows:

[0034] a) Use at least two positioning blocks: positioning block I 1 and positioning block II 3 to simultaneously fix the workpiece 2 to be measured from two adjacent surfaces perpendicular to the spherical center of the workpiece 2 to be measured;

[...

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Abstract

The invention discloses an eccentricity detecting method for a spherical surface optical element with small caliber and large curvature. The method comprises the following steps that: 1, a standard plane surface is placed on a displacement device with reading and measuring functions, and the displacement device with the reading and measuring functions is placed below a microscipe or a magnifier; 2, the center of sphere of a to-be-detected workpiece is placed vertically to the standard plane surface by using a positioning tool, the spherical surface of the to-be-detected workpiece tightly leans against the standard plane surface, and a clear Newton's ring formed between two contact surfaces of the spherical surface of the to-be-detected workpiece and the standard plane surface is observed through the microscipe or the magnifier; 3, the Newton's ring and the central position of the dusky ring of the Newton's ring can be observed in the projection direction of the Newton's ring through the microscipe or the magnifier; and 4, the distance between the central original point of the dusky ring of the Newton's ring and the reference plane of the to-be-detected workpiece is measured by using the displacement device with the reading and measuring functions, so as to obtain the eccentricity from the center of sphere of the to-be-detected workpiece to the standard plane surface. The method has the advantages that the measuring cost is low, the measurement is easy to achieve, and rapid batch detection in the production field is facilitated.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to the eccentricity detection of a spherical optical element with a small diameter and a large curvature. Background technique [0002] In the current processing technology, there is no practical method for small-caliber and large-curvature spherical optical elements. There are certain disadvantages in the actual inspection process: high measurement cost, difficult measurement, and not conducive to batch rapid inspection on the production site. Contents of the invention [0003] The object of the present invention is to provide a method for detecting eccentricity of spherical optical elements with small diameter and large curvature. The method has low measurement cost, is easy to implement, and is beneficial to rapid detection in batches at the production site. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/27
Inventor 崔杰弋建鱼
Owner 西安北方捷瑞光电科技有限公司