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High resolution machine vision lens

A machine vision and high-resolution technology, applied in the field of high-resolution machine vision lenses, can solve the problems of not being able to give full play to the performance of the camera and the resolution accuracy is not high enough, and achieve the adjustment of the clear aperture, the flexibility of the clear aperture, and clear focus Effect

Pending Publication Date: 2019-01-04
GUANGDONG AOPUTE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resolution accuracy of the existing fixed-focus machine vision lenses in China is generally not high enough, and the performance of the camera cannot be fully exerted when matched with the imaging chip of the small pixel. Therefore, the research and development of high-resolution machine vision lenses is more urgent

Method used

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Embodiment Construction

[0020] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", horizontal" etc. are based on th...

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Abstract

The invention discloses a high resolution machine vision lens. The high resolution machine vision lens includes a first lens group GA, a second lens group GB and a third lens group GC which are sequentially disposed from the object side to the image side, wherein the first lens group GA includes a first lens G1, a second lens G2 and a third lens G3, the second lens group GB includes a fourth lensG4 and a fifth lens G5, the third lens group GC includes a first cemented lens U1, a second cemented lens U2 and a tenth lens G10, the focal length of an optical system is f, the focal length of the first lens group GA is fGA, the focal length of the second lens group GB is fGB, the focal length of the third lens group GC is fGC, following relations are respectively satisfied, 0.8<|fGA / f|<1.4, 1.40<|fGB / f|<2.20, and 2.05<|fGC / f|<3.40. The machine vision lens has advantages of high resolution and low distortion and is further compatible with cameras with a pixel size of 2.2mum.

Description

technical field [0001] The invention belongs to the technical field of machine vision, and in particular relates to a high-resolution machine vision lens. Background technique [0002] The function of the machine vision system is to use the machine to measure, judge and detect defects on the target parts, so as to reduce or eliminate the misjudgment during human operation, and improve the measurement accuracy and stability. Its core principle is to transmit the optical signal to the camera through the machine vision lens, and then the camera converts the optical signal into an electrical signal to the image processing system. The image processing system performs various operations on the collected image information to extract the characteristics of the target, and then On-site device actions are controlled based on the result of discrimination. [0003] On the one hand, in the context of industrial automation, the demand for machine vision is increasing day by day, especial...

Claims

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Application Information

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IPC IPC(8): G02B15/14
CPCG02B15/14
Inventor 曾振煌卢盛林
Owner GUANGDONG AOPUTE TECH CO LTD
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