D arrays are arranged on a circular circuit board, producing high-brightness light in the annular area illuminated by the light source.
Brightness can be adjusted continuously. (Does not include power adapter)
The formation of light, more prominent three-dimensional objects, a good solution to the problem of shadow objects.
Can better solve the object image contrast is not obvious problem.
Test IC chip printing characters.
Detection of printed circuit board components.
Detect plastic stains.