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How do Scanning Lenses in Industrial Vision Achieve High-Precision Measurement?

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In industrial vision systems, scanning lenses are critical optical components that enable high - precision, high - speed, large - field - of - view measurements. Achieving such precision is a systems - level challenge that requires the coordinated integration of high - performance optical hardware, meticulous system calibration, and advanced image - processing algorithms. I. Optical h ardware: e nsuring i maging a ccuracy from the s ource The high precision of a scanning lens first depends on its optical design; the selection of lenses and other optical components determines the upper limit of the raw image quality that the system can capture. 1. Telecentric lens Telecentric lenses are key to eliminating perspective distortion and are the preferred choice for precision measurement. Through a unique optical design, they ensure that image magnification remains constant over a specified range of object distances. This fundamentally eliminates the “near - large, far - small” perspective ...
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The Principle, Function, and Usage Techniques of Fisheye Lenses

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A fisheye lens is a specialized type of wide-angle lens designed with a pronounced spherical curvature—resembling the spherical crystalline lens of a fish's eye—and an image plane positioned closer to the lens elements, mimicking the short distance between a fish's lens and its retina. Fisheye lenses have a field of view that can approach or exceed 180 degrees. Due to the extremely large field of view, the distortion is also very large. Generally, straight lines around the edges of the image will be bent, while only straight lines in the center of the lens can maintain their original state. The principle and function of a fisheye lens Fisheye lenses achieve their distinctive effect by utilizing very short focal lengths and highly curved lens elements. It typically consists of multiple lenses, each with a large curvature, allowing light to enter from various angles and be projected onto the photographic film or image sensor. Because they capture a field of view that exceeds tha...
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ITS: An Important Assistant in Smart City Construction

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1. What is ITS? An Intelligent Transportation System (ITS) is an integrated transportation system that combines advanced technologies—such as information technology, data communication, sensor technology, electronic control technology, and artificial intelligence—to enhance the safety, efficiency, and sustainability of the transportation system. ITS was developed to address issues such as traffic congestion, air pollution, and road safety. The system optimizes transportation infrastructure and services—including traffic signal control, route guidance, and public transport management. By significantly alleviating traffic congestion, effectively reducing traffic accidents, enhancing the safety of transportation systems, and curbing environmental pollution, it has become a quintessential application within the field of the Internet of Things (IoT). What is ITS 2. There are many benefits to using ITS ITS can be applied to various modes of transportation, including road, rail, air, and mar...
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What Are The Characteristics of Optical Lenses for Different Applications?

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With the advancement of AI technology, an increasing number of innovative applications rely on machine vision to function. In this process, the prerequisite for AI to be effective is that smart devices can see and see clearly, and optical lenses play an indispensable and important role in this process. 1.CCTV lenses are facing a technological upgrade Judging from the development trends of video surveillance systems, the technological upgrade path for CCTV lenses is primarily characterized by the following aspects: 1) Reliability and lens cost Security surveillance systems place high demands on the high-temperature resistance of lenses, a factor that is central to their reliability. Since CCTV lenses must operate in harsh weather conditions, the ability to withstand high temperatures is crucial. A high-quality lens must maintain focus and avoid image distortion under high-temperature conditions—typically tested within the 60–70°C range. Meanwhile, the market is increasingly trendin...
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What Should Be Considered When Selecting Industrial Lenses?

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1. Industrial lens mounts There are three mainstream lens mount types: F-mount, C-mount, and CS-mount. The F-mount is a universal mount, generally suitable for lenses with a focal length greater than 25mm; while when the focal length of the objective lens is less than 25mm, due to the small size of the objective lens, a C-mount or CS-mount is used, and some also use an M12 mount. The difference between the C mount and the CS mount : The difference between C-mount and CS-mount interfaces lies in the distance from the lens-camera contact surface to the lens's focal plane (the position where the camera's CCD image sensor is located): this distance is 17.53 mm for C-mount and 12.5 mm for CS-mount. C- mount lenses are compatible with C-mount cameras, and CS-mount lenses are compatible with CS-mount cameras. A C-mount lens can be used with a CS-mount camera by adding a 5mm C/CS adapter ring. However, a CS-mount lens cannot be used with a C-mount camera. Industrial lens mounts 2. Ba...
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