Many people have questions about telecentric optical systems. What exactly is a telecentric optical system? What are the benefits of using a telecentric optical system? China Machine Vision Mall (www.china-vision.com.cn) will explain all of this for you.
A telecentric optical system is an optical system in which the principal ray is parallel to the optical axis of the lens. When light travels from the object toward the lens and remains parallel to the optical axis, or even off-axis, it is called an object-side telecentric optical system. When light travels from the lens toward the image and remains parallel to the optical axis, or even off-axis, it is called an image-side telecentric optical system.
Having answered the questions about telecentric optical systems, let's now look at their advantages and disadvantages in practical industry applications, and what kind of performance users can expect.
When talking about telecentric optical systems, we must mention telecentric lenses . Telecentric lenses are a type of high-end machine vision lens and a core component of telecentric optical systems. They can generally be divided into two categories: object-side telecentric lenses and bi-lateral telecentric lenses .
The advantage of a telecentric lens is that it doesn't change the size or position of the object when moving its surface up and down. It also allows for a smaller lens size when using coaxial illumination. However, the disadvantage is that it's larger than a standard lens when not using coaxial illumination.
Advantages of bilateral telecentric lenses: zero distortion and no perspective error, making them particularly suitable for high-precision inspection and measurement applications; disadvantages include higher cost.
Microvision's latest dual telecentric optical system instrument kit features a unique dual telecentric design, high telecentricity, and zero perspective error, tailored for professional precision measurement with "near-zero distortion." It also provides precise telecentric imaging of large objects, offering ultra-wide depth of field and high resolution specifically designed for the movement of large objects. Even when used with small-pixel image sensors, it can generate high-resolution images. It can be used for measuring precision mechanical parts, precision plastic parts, glass products and medical parts, precision electronic components, and in specialized industries, providing unparalleled performance advantages and limitless possibilities for industry applications. For more information, please visit: China Machine Vision Mall www.china-vision.com.cn Hotline: 4000-400-816.
