How to choose a suitable telecentric lens?

When choosing a telecentric lens, we must first know when to choose a telecentric lens. According to the principle, characteristics and unique advantages of telecentric lens, it is best to choose telecentric lens when the object to be detected encounters the following six situations: 1) when the object with thickness (thickness >) needs to be detected; 110 FOV diameter); 2) When it is necessary to detect objects that are not in the same plane; 3) When the distance between the object and the lens is unclear; 4) When it is necessary to detect three-dimensional objects with apertures; 5) When low distortion is required and the brightness of image effect is almost the same; 6) When defects can only be detected under parallel illumination in the same direction. When choosing a telecentric lens, we must first understand the relevant indicators of the telecentric lens: 1) Object size-shooting range. 2) Image size-the target size of the CCD used. 3) Working distance-the distance from the front surface of the objective lens to the object. 4) Resolution-CCD pixel size used. 5) Depth of field-the range where the lens can form a clear image. The greater the magnification of the image/object, the smaller the depth of field. 6) Interface-Camera interface, mostly C and T interfaces. According to the use situation (object size and required resolution), select the objective lens and CCD or CMOS camera with appropriate object size, and get the image size at the same time, then calculate the magnification, and then select the appropriate image lens according to the product list. Look at Chanrui Optical official website. Canrui Technology is the earliest company in China to develop and produce telecentric lenses, which has an absolute leading position in the industry. Canrui is one of the few industrial lens enterprises with the most complete industrial chain. Canrui Technology aims to create, develop, produce and market high-quality machine vision components and solutions worldwide, so as to help customers in various industries improve production efficiency, reduce production costs and improve product quality.