Bluebean Optical Tech Limited of Shanghai delivered 50 pieces red ruby prisms with radius. The first prism pictures were taken at June 5
and it was retaken again as BB#1 later
More samples were selected randomly as one from each bag of 5 and labeled as BB#2.......6
The R10 mm radius can be seen agains the ruler edge. The v-groove edge was labeled with blue marker and pictures were taken
from both side of this ridge. The top view is shown as the wire laying across on it.
SOS sus wire of 43 micron OD used as calibration as it was placed close to the side that it was focused on.
The V-groove ridge surface quality was evaluated based on as scale of 1 – 10 with 10 being the most positive.
| BB# |
Edge quality score |
| 1 |
4 |
| 2 |
8 |
| 3 |
3 |
| 4 |
9.5 |
| 5 |
2 |
| 6 |
9 |
Remaining thing to examin, take picture of the contacting ridge to SOS from the side. |