CHANCCTV-OPTICSLENS

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...

Choosing the right aberration rate for an industrial lens requires considering multiple factors, such as specific application requirements, measurement accuracy requirements, cost budget, etc. Here are some suggestions and considerations for selection: 1. Identify application requirements Identify the specific requirements of industrial applications for image quality and measurement accuracy, and determine the required image quality standards based on the requirements. For example, for some applications that require high image clarity and accuracy, it may be necessary to select an industrial lens with a lower aberration rate. 2. Understanding a berration t ypes Understand the impact of different aberration rates on image quality, including distortion, chromatic aberration, spot spread, etc., so as to choose the most suitable industrial lens for specific applications. Aberrations are mainly divided into radial aberrations and tangential aberrations. Radial aberrations are usually chara...

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...

1 、 How to confirm the resolution of industrial lenses? To confirm the resolution of an industrial lens , some measurements and tests are usually required. Let’s take a look at several common methods to confirm the resolution of industrial lenses: MTF Measurement The resolution capability of a lens can be evaluated by testing the Modulation Transfer Function (MTF) of the lens. MTF measurement can reveal the lens's ability to transmit details at different frequencies and contrasts, thereby judging the lens's resolution performance. Resolution test image Use a resolution test image with high contrast and detail to evaluate the resolution capability of the lens. By observing the details and edge conditions in the image, you can initially judge the resolution performance of the lens. Use images to test resolution Use resolution test charts In practical applications, lens resolution can be tested using resolution test charts designed specifically for testing lens resolution. These c...