Table 1 Series of calibrated ND filter sets and respective OD values.
From: Smartphone-based low light detection for bioluminescence application
Set Number | ND filter combination | filter OD | Pin (pW) | cps (photon/s) |
|---|---|---|---|---|
1 | #2 + 4 + 5 + 7 | 4.099 | 165.6 | 4.17 × 108 |
2 | #7 + 8 | 4.607 | 51.41 | 1.29 × 108 |
3 | #6 + 7 | 5.009 | 20.37 | 5.12 × 107 |
4 | #1 + 5 + 6 + 7 | 5.510 | 6.43 | 1.62 × 107 |
5 | #1 + 5 + 6 + 8 | 6.089 | 1.69 | 4.25 × 106 |
6 | #1 + 4 + 6 + 8 | 6.581 | 0.556 | 1.39 × 106 |
7 | #1 + 3 + 6 + 8 | 7.030 | 0.194 | 4.90 × 105 |
8 | #6 + 7 + 8 | 7.602 | 0.052 | 1.32 × 105 |
9 | #5 + 6 + 7 + 8 | 7.976 | 0.022 | 5.68 × 104 |
