Planar-convex lens alignment
| Incident to planar | incident to convex |
|---|---|
 |
 |
Reflection of metal Tubes
| Laser output | Laser with tube |
|---|---|
 |
 |
Unwanted factors
Reflection / refraction
| Sensor and glass substrate reflection | Sensor glass reflection/refraction |
|---|---|
 |
 |
Aperture stop
| larger aperture | smaller aperture |
|---|---|
 |
 |