Letter Inspection

Original Image	Result Image

Illuminator: OPT-RIU80-W

Surface is very reflective, edge bulge, middle dent, it is better to use 

OPT-RIU80-W to get very clear image result, other light can cause 

the edge with bright circle and affect the letter reading on the surface 

of resistor. OPT -RIU80-W has very good performance diffuser, the 

light is very gentle, and causes very strong reflective.