CHANCCTV-OPTICSLENS

The M12 lens is a relatively special camera lens with wide applicability. M12 represents the interface type of the lens, indicating that the lens uses an M12x0.5 thread interface, which means that the lens diameter is 12 mm and the thread pitch is 0.5 mm. The M12 lens is very compact in size and has two types: wide-angle and telephoto, which can meet different shooting needs. The optical performance of the M12 lens is generally excellent, with high resolution and low distortion. It can effectively capture clear and sharp images and provide good image quality even in adverse lighting conditions. Due to its compact design, the M12 lens can be easily installed on a variety of devices, such as small cameras, surveillance cameras, drones, and medical equipment. M12 lenses are frequently mounted on drones 1 、 Advantages of M12 lens es Excellent optical performance M12 lenses are generally characterized by high resolution and low distortion, capable of capturing clear and sharp images. Comp...

Iris recognition is a biometric recognition technology, and the iris recognition lens is an important component used in iris recognition technology. It is mainly used to collect iris images for individual identification and is a key component to ensure the accuracy of the iris recognition system. 1 、 The main functions of the iris recognition lens We know that iris recognition lenses are mainly used in some financial, government, medical and other fields with security access control, and there are some special requirements for the functions of the lens. For iris recognition lenses, we need to focus on the following functions: High-definition image acquisition Iris recognition lenses usually use high-resolution imaging sensors that can capture the details and texture features of the human iris, thereby ensuring high-quality image acquisition. Autofocus and autoexposure Iris recognition lenses usually have auto-focus and auto-exposure functions, which can quickly and accurately adjust ...

With the rapid development of the electronics industry, PCB (printed circuit board), as the carrier of electrical connection of electronic components, has higher and higher manufacturing quality requirements.The development trend of high precision, high density and high reliability makes PCB inspection particularly important. In this context, telecentric lens , as an advanced visual inspection tool, is increasingly widely used in PCB printing, providing a new innovative solution for PCB inspection. 1 、 Working principle and characteristics of telecentric lens Telecentric lenses are designed to correct the parallax of traditional industrial lenses. Their characteristic is that the image magnification does not change within a certain object distance. This characteristic makes telecentric lenses have unique advantages in PCB inspection. Specifically, the telecentric lens adopts a telecentric optical path design, which is divided into an object side telecentric optical path and an image si...

An ultra-wide-angle fisheye lens is a special wide-angle lens. Its viewing angle can generally reach 180 degrees or more, which is larger than that of an ordinary ultra-wide-angle lens. It is widely used in photography and videography and can capture very wide scenes. 1 、 Types of u ltra w ide- a ngle f isheye l enses There are two main types of ultra-wide-angle fisheye lenses: panoramic fisheye and circular fisheye. P anoramic fisheye The viewing angle of a panoramic fisheye lens reaches or exceeds 180 degrees, which can capture almost all scenes in the picture and present an extremely wide field of view. The image of the panoramic fisheye lens will have a significant curvature effect, which is different from the straight viewing angle seen by the human eye. Round fisheye The viewing angle of a circular fisheye lens is usually 180 degrees, which can capture a complete circular picture. The image of a circular fisheye lens shows a circular border with a certain black edge. Ultra-wide-...

In photography, distortion refers to the distortion of image shape and volume, which is a common phenomenon. In practical applications, most lenses will have a certain degree of distortion, especially wide-angle lenses, where the distortion problem is particularly obvious. In the design process of optical lenses, distortion-free lenses are very difficult to achieve. The current distortion-free lenses can be said to be lenses with very small distortion or close to distortion-free, or they can be achieved through software adjustment after the lens is imaged. 1 、 What are the advantages and disadvantages of distortion-free lenses? Distortion-free lenses have certain advantages, but also certain limitations. Let’s take a closer look: Advantages of distortion-free lenses: Image quality assurance  - T he most obvious advantage of a distortion-free lens is its higher image quality. Due to improvements in lens design, images captured through distortion-free lenses can better maintain the ...

As a key component of the machine vision system, industrial cameras are usually installed on the machine assembly line to replace the human eye for measurement and judgment. Therefore, choosing a suitable camera lens is also an indispensable part of the machine vision system design. So, how should we choose a suitable industrial camera lens ? What issues should be considered when choosing an industrial camera lens? Let's take a look together. 1. Basic considerations for selecting industrial camera lenses ① Choose CCD or CMOS camera according to different applications CCD industrial camera lenses are mainly used for image extraction of moving objects. Of course, with the development of CMOS technology, CMOS industrial cameras are also used in many chip placement machines. CCD industrial cameras are widely used in the field of visual automatic inspection. CMOS industrial cameras are widely used because of their low cost and low power consumption. Industrial cameras are used in produc...

Fisheye lens is a super wide-angle lens, with a viewing angle of more than 180°, and some can even reach 230°. Because it can capture images beyond the field of view of the human eye, it is particularly suitable for shooting some large scenes and occasions that require a wide field of view. 1. What is the fisheye lens suitable for shooting? The application of fisheye lenses is very wide, and there are basically no restrictions. In terms of adaptability, the scenes that fisheye lenses are most suitable for shooting may include the following: Large-view scene The fisheye lens can expand the shooting angle and provide users with a 180-degree field of view up and down. It is very suitable for shooting a wide range of scenes, such as panoramic scenery, large buildings, indoor spaces, the sky, etc. Sports p hotography Fisheye lenses are widely used in sports cameras, such as for shooting skateboards, bicycles, surfing, skiing and other extreme sports, which can reflect the sense of speed a...

As we all know, a wide-angle lens is a photographic lens with a wider field of view, generally larger than what the human eye can see. Its focal length is relatively short, generally between 10mm and 35mm, and is suitable for shooting scenes that need to capture a wide range. 1. Imaging characteristics of wide-angle lenses Different brands and models of wide-angle lenses may have some subtle differences in imaging characteristics, usually with the following characteristics: Broad vision Wide-angle lenses can capture a wider field of view and can capture more scenery or scenes. Therefore, wide-angle lenses are often used to shoot scenes such as landscapes, buildings, interiors, and crowds that need to show a sense of vast space. Wide-angle lens to capture vast landscapes Extended depth of field Since wide-angle lenses have a smaller focal length, they can produce a larger depth of field, meaning that both the foreground and the background can remain relatively clear. This also means th...

Industrial macro lenses are a special type of macro lens used in industrial applications. They usually have high magnification and good resolution, and are suitable for observing and recording the details of tiny objects. So, how do you choose an industrial macro lens? 1. How to choose industrial macro lens? When choosing an industrial macro lens, the following factors can be considered comprehensively: Focal length range The focal length of industrial macro lenses is usually between 40mm and 100mm, and you can choose the appropriate focal length range according to your shooting needs. Generally speaking, a shorter focal length is suitable for close-up shooting of the subject, while a longer focal length is suitable for long-distance shooting, which can better isolate the subject and the background. Aperture The larger the aperture, the more light the lens can absorb, which is beneficial for taking macro photos in low-light environments. In addition, a large aperture can also achieve ...