T-R1L3S6PR - Positive Reflective Variable Line Grating Test Target, 3" x 1"
T-R1L3S6PR - Positive Reflective Variable Line Grating Test Target, 3" x 1"
- 3" x 1" (76.2 mm x 25.4 mm) Variable Line Grating Target
- Resolutions from 1.25 lp/mm to 250 lp/mm
- Determine Resolution of an Optical System
- Vacuum-Sputtered Low-Reflectivity Chrome on Soda Lime Glass
- High-Contrast Positive Reflective Target Available
NOTES/SPECIFICATIONS:
1. MATERIAL: SODA LIME
2. COATING: LOW-REFLECTIVITY CHROME ON CHROME PATTERN
3. FACE DIMENSION TOLERANCE: 0.5 mm
4. THICKNESS TOLERANCE: 0.3 mm
5. SURFACE FLATNESS: ≤15 µm
6. REFLECTANCE: LOW-REFLECTIVITY CHROME <10% AND CHROME >40% AT 430 nm.
7. R1L3S6PR IS A TEST TARGET WITH DARK LOW-REFLECTIVITY CHROME PATTERN AND REFLECTIVE CHROME BACKGROUND.
8. THE VARIABLE FREQUENCY GRATINGS ARE 1.25 LP/mm, 1.67 LP/mm, 2.08 LP/mm, 2.50 LP/mm, 2.86 LP/mm, 3.33 LP/mm, 3.85 LP/mm, 4.17 LP/mm, 5.00 LP/mm, 6.67 LP/mm, 10.0 LP/mm, 12.5 LP/mm, 16.67 LP/mm, 26.0 LP/mm, 50.0 LP/mm, 100 LP/mm, 200 LP/mm, 250 LP/mm.
Resolutions of Included Line Gratings (lp/mm)
| • 1.25 | • 2.08 | • 2.86 | • 3.85 | • 5.00 | • 10.0 | • 16.67 | • 50.0 | • 200 | |
| • 1.67 | • 2.50 | • 3.33 | • 4.17 | • 6.67 | • 12.5 | • 26.0 | • 100 | • 250 |
| Optical Specifications | ||
|---|---|---|
| Item # | T-R1L3S6P | T-R1L3S6PR |
| Pattern | LR Chrome | LRa Chrome |
| Background | Clear | Chrome |
| Surface Flatness | ≤15 µm | ≤15 µm |
| Chrome Optical Density | ≥3.0 | - |
| Chrome Reflectance | - | LR Chrome: <10% Chrome: >40% |