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The difference between telecentric lenses and FA lenses

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2022/04/13

author:adminBOSS

The FA industrial lens is a very important imaging component in the machine vision system. If the system wants to fully play its function, the industrial lens must be able to meet the requirements. With the wide application of machine vision systems in the field of precision inspection, when using ordinary FA industrial lenses, the closer the object is to the lens, the larger the image will be. During inspection, there will be problems such as large lens distortion and low resolution. , it is difficult to meet the needs of precision measurement.

 

 

In order to make up for the shortcomings of ordinary lens applications and meet the needs of precision inspection, telecentric lenses came into being. The telecentric lens is a special lens designed to correct the parallax of the traditional FA lens. It not only has the essential characteristics of the lens, but also has the characteristics of constant magnification, low distortion and no parallax. It is often used in the measurement of small objects; For optical imaging, the magnification often changes, there is parallax, and it is generally only suitable for imaging of large objects.

 

 

The telecentric lens can be within a certain object distance range, so that the magnification of the obtained image will not change with the change of the object distance, and there will be no situation where the near size is large and the distance is small, and the measured objects are not on the same surface The condition is very important to use.

 

 

According to its unique optical characteristics: high resolution, ultra-wide depth of field, ultra-low distortion and unique parallel light design, telecentric lenses bring a qualitative leap to machine vision precision inspection.

 

 

Pomeas is committed to providing high-quality products and complete solutions for the majority of users. The main products are 4K zoom lens, telecentric lens, fixed focus industrial lens, zoom industrial lens, electric zoom lens, one-button measuring instrument and so on. Product details can be found on the website in detail, and we will provide you with perfect service.

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