Here, we introduce the light and illumination methods that are convenient for observing cylindrical transparent objects made of materials such as resin.
1. Coaxial light alone
When the magnification is very high, the observation will effectively be of a flat surface, allowing for observation with coaxial light alone in some cases.
2. Twin Arm light (from the longitudinal direction)
Illuminate from a low angle along the longitudinal direction of the cylinder.
 |
 |
 |
The brightness is uniform, resulting in an easy-to-observe image.
3. Twin Arm light (from the lateral direction)
Illuminate from a low angle along the lateral direction of the cylinder.
 |
|
 |
Surface scratches can be clearly observed as well.
The “coaxial light” and “Twin Arm light” used in this case are also available from our company.
 |
High-performance LED lighting for coaxial units (3W) LED-3WLTS |
 |
Twin Arm light
|
