T-R1L3S5P - Positive Combined Resolution and Distortion Test Target, 3" x 1"
T-R1L3S5P - Positive Combined Resolution and Distortion Test Target, 3" x 1"
| Target Feature | Details | Target Feature | Details |
|---|---|---|---|
| NBS 1963A | Frequencies from 4.5 cycles/mm to 228 cycles/mm (See List Above) | Concentric Circles | 10 Circles with Radii from 100 µm to 1000 µm in 100 µm Intervals |
| Distortion Grid (Squares) | 3 Grids: 100 lp/mm, 150 lp/mm, 200 lp/mm | Fixed Ronchi Rulings | 3 Rulings:100 lp/mm, 150 lp/mm, and 200 lp/mm |
| Distortion Grid (Dots) | 3 Grids: 400 µm Pitch of Ø80 µm Dots, 200 µm Pitch of Ø 40 µm Dots, 100 µm Pitch of Ø20 µm Dots |
Variable Ronchi Rulings | 20 Rulings (Each 1 mm x 1 mm): 10 lp/mm to 200 lp/mm in |
| Two-Point Resolution Dots | Ø25 µm, Ø20 µm, Ø15 µm, Ø12.5 µm, Ø10 µm, Ø7.5 µm, and Ø5 µm | Pinholes | Ø25 µm, Ø20 µm, Ø15 µm, Ø12.5 µm, Ø10 µm, Ø7.5 µm, and Ø5 µm |
| Interdigitated Lines | 6.25 lp/mm, 12.5 lp/mm, 25 lp/mm, 50 lp/mm, 100 lp/mm, |
Micrometers | 3 Rulers: 10 mm Scale with 50 µm Divs, 1 mm Scale with 10 µm Divs, and 1mm x 1 mm XY Scale with 50 µm Divs |
| Sector Star | 36 Bars through 360°, 50 µm Radius Center Circle, and Ten Concentric Circles with Radii from 100 µm to 500 µm in 50 µm Intervals | ||
| 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: 0.3 mm
5. SURFACE FLATNESS: ≤15 µm
6. OPTICAL DENSITY: ≥3.0 AT 430 nm
7. R1L3S5P IS A POSITIVE TEST TARGET WITH DARK PATTERN AND CLEAR BACKGROUND. 8. PATTERNS ARE NBS 1963, CROSS RULER, STAGE RULER, SECTOR STAR, PINHOLES, DOTS, INTERDIGITATED LINE, VARIABLEFREQUENCY GRATING, FIXED RONCHI RULINGS, RONCHI RULING GRID, DISTORTION TARGET, BLACK BOX, CONCENTRIC CIRCLES
- 3" x 1" (76.2 mm x 25.4 mm) Target
- Includes NBS 1963A Pattern, Sector Star, Concentric Circles, Grids, Ronchi Rulings, and More (See Table Below)
- Determine Resolution of an Optical System
- Measure Image Distortion, Astigmatism, and Other Aberrations