Howtosignalprocessing
- What is a machine vision lens?
- What distance is infinity focus?
- How do I choose a lens for machine vision?
What is a machine vision lens?
× The lens captures the image and delivers it to the image sensor in the camera. Lens will vary in optical quality and price, the lens used determines the quality and resolution of the captured image.
What distance is infinity focus?
Find or create a distant light
Further away is better, but for a wide-angle lens, you should be able to focus at infinity with an object that is at least 25-30 ft or 8-10 m away. Another option might be to turn on your phone's flashlight and prop it up somewhere in the distance, then focus on that.
How do I choose a lens for machine vision?
Picking a Machine Vision Lens. When choosing the lens used in a machine vision application, one must consider the sensor that will be used. Sensor size and pixel size are of extreme importance in the selection process. The lens must be able to properly illuminate the complete sensor area to avoid shading and vignetting ...
