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12mm 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

However, for the existing 12mm focal length machine vision lens in China, when the chip size is 2 / 3", the pixels are less than 5 million, which cannot meet the needs of high-end products.

Method used

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  • 12mm fixed focus machine vision lens
  • 12mm fixed focus machine vision lens
  • 12mm fixed focus machine vision lens

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] refer to Figure 1 to Figure 11The 12mm 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 includes a first lens 20, a second lens 21, and a central axis on the same horizontal line. The third eyeglass 22, the fourth eyeglass 23, the aperture 24, the fifth eyeglass 25, the sixth eyeglass 26, the seventh eyeglass 27, the eighth eyeglass 28 and the ninth eyeglass 29, the first eyeglass 20 is set to "meniscus" shape Structure, the front surface is a convex surface with a radius of 40.49±0.1mm, the back surface is a concave surface with a radius of 10.485±0.1mm, the distance b1 between the center point of the front surface and the center point of the back surface is 4.22±0.1mm, and the edge thickness b2 is 5.86±0.1mm; the front curved surface of the second lens 21 is set as a convex surface with a radius of 17.357±0.1mm, the back curved s...

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PUM

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Abstract

The invention relates to the technical field of optical lenses, and particularly relates to a 12mm prime machine visual lens comprising a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens of which the central axes are arranged on the same horizontal line. When object distance changes, air space from the ninth lens to an image plane changes, i.e. the first to the ninth lenses move forward and backward together, only optical back focal length changes and other space size does not change. With application of the aforementioned structure, the pixel value can reach five million pixels when the focal length is 12mm and the corresponding chip size is 2 / 3" so that the high-end product demand can be met, and optical transmission aperture can also be flexibly adjusted.

Description

technical field [0001] The invention relates to the technical field of optical mirrors, in particular to a 12mm 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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