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Types of fiber bundle optical imager and their parameters.
| Types | Type I | Type II | Type III |
|---|---|---|---|
| Parameters | |||
| Length (cm) | 7.6 | 7.6 | 30.5 |
| Size (total diameter) (mm) | 3.2 | 3.2 | 0.5 |
| Number of fibers | ~3,012 | ~50,419 | ~10,000 |
| Core spacing (size) (μm) | ~50 (43) | ~12 (9) | ~4.5 (2.9) |
| NA | 0.53 | 0.55 | 0.39 |
| ncore | 1.58 | 1.58 | 1.50 |
| ncladding | 1.49 | 1.48 | 1.446 |
