The vision system can affect the result of the image quality, so it need to select a suitable lighting, it is an important point to affect the whole machine vision system.
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The vision system can affect the result of the image quality, so it need to select a suitable lighting, it is an important point to affect the whole machine vision system.
For the contour detection of the lighting method is flexible, and there are three lighting methods:back emitting, direct emitting for bright FOV, direct emitting for dark FOV. It can be flexibly selected according to different structure and constraints on site.
Use new optical element with coaxial line scan light can be used for detection of bump on smooth surface.
The surface of the LED bead is scratched.Black spots, wool, and metal debris on the surface and the bottom, uneven sealing glue, error of glue surround, glue overflow.
Matched with spot light using, the principle is to make the light collimated through the lens. The spot size can be adjusted by the distance from two lens (One is in the light, one is connected with light). Simple design, can make the light ray parallel.