16mm fixed focus machine vision lens

A machine vision and lens technology, applied in the field of optical mirrors, can solve the problems of less than 5 million pixels and cannot meet the needs of high-end products, and achieve the effect of meeting the needs of high-end products

Active Publication Date: 2017-08-22
GUANGDONG AOPUTE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the domestic machine vision lens with a focal length of 16mm, when the chip size is 2 / 3", the pixels cannot reach 5 million, which cannot meet the needs of high-end products.

Method used

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  • 16mm fixed focus machine vision lens
  • 16mm fixed focus machine vision lens
  • 16mm fixed focus machine vision lens

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Experimental program
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Embodiment Construction

[0024] refer to Figure 1 to Figure 10The 16mm fixed-focus machine vision lens provided by the present invention includes a lens barrel 1 and a lens combination structure 2 installed in the lens barrel 1. The lens combination structure 2 includes a first lens 21 and a second lens 22 whose central axes are located on the same horizontal line , the third lens 23, the fourth lens 24, the diaphragm 25, the fifth lens 26, the sixth lens 27, the seventh lens 28 and the eighth lens 29, the first lens 21 is set to a "meniscus" shape structure, and its front The curved surface is a convex surface with a radius of 56.13±0.1mm, and the back curved surface is a concave surface with a radius of 15.741±0.1mm. The distance b1 between the center point of the front surface and the center point of the back surface is 5.36±0.1mm, and the edge thickness b2 is 7.55±0.1 mm; the front curved surface of the second lens 22 is set as a convex surface with a radius of 24.9±0.1mm, the back curved surface...

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Abstract

The invention relates to the technical field of optical mirrors, in particular to a 16mm fixed-focus machine vision lens, comprising a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, and a sixth lens whose central axes are located on the same horizontal line. Lens, the seventh lens and the eighth lens, when the object distance changes, the air distance between the eighth lens and the image plane changes, that is, the first lens to the eighth lens move back and forth together, only the optical back focus changes, and the other distances Dimensions do not change. Through the above structure, when the focal length is 16mm and the corresponding chip size is 2 / 3", its pixel value can reach 5 million pixels, which meets the needs of high-end products, and its clear aperture can also be flexibly adjusted.

Description

technical field [0001] The invention relates to the technical field of optical mirrors, in particular to a 16mm fixed-focus machine vision lens. Background technique [0002] Machine vision is the use of machines instead of human eyes for measurement and judgment. The machine vision system refers to converting the ingested target into an image signal through a machine vision product (that is, an image capture device, which is divided into two types: CMOS and CCD), and sending it to a dedicated image processing system. The image system performs various calculations on these signals to extract the characteristics of the target, and then controls the on-site equipment actions according to the results of the discrimination. [0003] In recent years, with the rapid development of the microelectronics industry, machine vision systems with high resolution and high processing speed have been born continuously, which puts forward new requirements for the matching optical lenses. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00
Inventor 卢盛林
Owner GUANGDONG AOPUTE TECH CO LTD
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