T-R3L3S5P - Positive Concentric Circle and Crosshair Grid Target, 3" x 3"
T-R3L3S5P - Positive Concentric Circle and Crosshair Grid Target, 3" x 3"
- Concentric Circles and Crosshair Patterns Arranged in a Grid
- Four Different Concentric Circle Sizes and Five Different Crosshair Sizes
- Measure Resolution, Distortion, and Magnification of an Imaging System
- 3" x 3" (76.2 mm x 76.2 mm) Soda Lime Glass Substrate
-
Optical Specifications Pattern LR Chrome Background Clear Surface Flatness ≤15 µm Chrome Optical Density ≥3.0
NOTES/SPECIFICATIONS:
1. MATERIAL: SODA LIME
2. COATING: OD3 LOW-REFLECTIVITY CHROME
3. FACE DIMENSION TOLERANCE: 0.5 mm
4. THICKNESS TOLERANCE: 0.2 mm
5. SURFACE FLATNESS: ≤15 µm
6. OPTICAL DENSITY: ≥3.0 AT 430 nm
7. R3L3S5P IS A POSTIVE TEST TARGET WITH DARK PATTERN AND CLEAR BACKGROUND
8. THE PATTERN IS AN ARRAY OF CROSSHAIRS AND CONCENTRIC RINGS
| Crosshairs | |||
|---|---|---|---|
| Crosshair Pattern | Single or Double Line | Length/Width | Line Width |
| B1 | Double | 500 µm | 6.25 µm |
| B2 | Double | 500 µm | 12.5 µm |
| B3 | Single | 500 µm | 50 µm |
| B4 | Double | 500 µm | 25 µm |
| B5 | Double | 500 µm | 100 µm |
| Concentric Circles | |||||||
|---|---|---|---|---|---|---|---|
| Circle Pattern | R1 | R2 | R3 | R4 | R5 | R6 | R7 |
| A1 | 31.3 µm | 62.5 µm | 125 µm | 140.6 µm | 234.4 µm | 242.2 µm | 500 µm |
| A2 | 15.6 µm | 31.3 µm | 62.5 µm | 70.3 µm | 117.2 µm | 121.1 µm | 250 µm |
| A3 | 7.8 µm | 15.6 µm | 31.3 µm | 35.2 µm | 58.6 µm | 60.5 µm | 125 µm |
| A4 | 3.9 µm | 7.8 µm | 15.6 µm | 17.6 µm | 29.3 µm | 30.3 µm | 62.5 µm |