T-R2L2S1B - Birefringent NBS 1963A Resolution Target, 2" x 2"
T-R2L2S1B - Birefringent NBS 1963A Resolution Target, 2" x 2"
- Determine Resolution of a Polarizing Optical System
- Birefringent Target Displays Both Positive and Negative Patterns
- Frequencies from 1 to 18 cycles/mm (See List Below)
- 2" × 2" (50.8 mm × 50.8 mm) N-BK7 Glass Substrate
Frequencies (cycles/mm)
| • 1 | • 1.25 | • 1.6 | • 2 | • 2.5 | • 3.2 | • 4 | • 5 | • 6.3 | • 8 | • 10 | • 12.5 | • 16 | |
| • 1.1 | • 1.4 | • 1.8 | • 2.2 | • 2.8 | • 3.6 | • 4.5 | • 5.6 | • 7.1 | • 9 | • 11 | • 14 | • 18 |
| Optical Specifications | |
|---|---|
| Design | Liquid Crystal Polymer Between N-BK7 Substrate and N-BK7 Protective Glass |
| Substrate Thickness | 2.0 mm (0.08") |
| Protective Glass Thickness | 0.18 mm (0.007") |
| Retardance | 280 nm |
| Retardance Accuracy | <λ/50 |
| Retardance Uniformity | <10 nm |
NOTES/SPECIFICATIONS:
1. GLASS MATERIAL: N-BK7
2. PROTECTIVE GLASS THICKNESS: 0.18mm
3. MATERIAL: LIQUID CRYSTAL POLYMER
4. RETARDANCE: 280nm
5. RETARDANCE ACCURACY: <λ/50 @ 633nm
6. RETARDANCE UNIFORMITY: < 10nm
7. SURFACE QUALITY: 60-40 SCRATCH-DIG