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