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Zoom principle and lens adjustment method of zoom lens
What is the difference between infrared camera and ordinary camera?
Infrared cameras and ordinary cameras are widely used in various fields. It brings great convenience to people's daily life and work. So what is the difference between infrared camera and ordinary camera?
What is machine vision? Which industries are they applied to?
Machine vision is a branch of artificial intelligence that is developing rapidly. In short, machine vision is to use machines instead of human eyes to measure and judge. The machine vision system converts the captured target into an image signal through the machine vision product (i.e., image capturing device, including CMOS and CCD) and transmits it to a special image processing system to obtain the shape information of the captured target, and converts it into a digital signal according to the pixel distribution, brightness, color and other information; The image system carries out various operations 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.
Characteristics and application of linear array camera and area array camera
In the modern society, the emergence of industrial cameras provides better help for industrial production. According to the structural characteristics of sensors, industrial cameras can be divided into linear array cameras and area array cameras. What are their characteristics and differences?
Industrial lens selection calculation formulas and methods, this article can master the skills!
Method/Step 1: First of all, it is necessary to determine the interface, target size and resolution size of the industrial camera. For example, it is a 2/3" industrial camera, C-mount, 5 megapixels; then we can first determine that the required industrial lens is C-mount, at least support 2/3", 5 megapixels or more, or the line pair is 160LP.
What are the characteristics of machine vision light sources?
1. Spectral width The color of the light source and the color of the surface of the object to be detected together determine the size and wavelength of the spectrum reflected to the camera, while white light or a relatively special spectrum needs to have a larger spectrum to extract the characteristic information of other colors accurately. . The machine vision light source has a very wide spectrum, which can fully meet the spectral requirements of various light extraction features of the object under test.
Macro lens application advantages
Macro lens is a special lens used for macro photography, mainly used to shoot very subtle objects, such as flowers and insects. In order to focus correctly on very close subjects, macro lenses are usually designed to be stretched longer to keep the optical center as far away from the sensor as possible. At the same time, the design of the lens group must also focus on Control of deformation and chromatic aberration at close range.
Future market demand for smart home security monitoring
With the rapid development of home informatization, users' demands for home security monitoring are becoming more and more intense. At present, video surveillance is mainly used in residential areas that are closely related to the industry and family, and there are still relatively few applications for home security monitoring. Under the guidance of the policies of safe cities and safe families, the continuous improvement of the home network environment, the enhancement of user spending power, the growth of security awareness, and the increase of independent living families, domestic home security monitoring will begin to rise.
What is a telecentric lens? How to choose?
Telecentric lens is mainly designed to correct the parallax of traditional industrial lenses. It can be within a certain object distance range, so that the magnification of the obtained image will not change. is a very important application. Telecentric lenses have always been favored by machine vision applications that require high lens distortion due to their unique parallel light path design.