Problem:
1. It’s difficult to mount a back light behind the target because the machine is spinning.
2. The Glass container can focus the light causing unstable detection.
3. Reflected Light off the product can cause unstable detection.
Solution:
1. Using wavelength conversation
sheet its possible to mount behind the target without running electrical cables.
2. The meniscus of the water appears more clearly.
3. The ambient light reflected of the target is cut from the image.
