| Parameter | Specification |
|---|---|
| Product Type | Optical Flat |
| Make | Mitutoyo |
| Model Number | 158‑119 |
| Diameter | 60 mm |
| Material | Optical glass / high‑grade polished glass |
| Flatness Accuracy | Typically λ/10 or better (depends on spec) |
| Surface Finish | Precision lapped and polished |
| Measurement Unit | Metric |
FEATURES
• Precision optical flat for flatness inspection using monochromatic light
• High‑grade optical glass provides accurate interference fringe patterns
• 60 mm diameter suitable for small precision components
• Ideal for checking surface flatness to high tolerance levels
• Used with light source (e.g., sodium lamp) for interference comparisons
• Durable, highly polished surface for consistent measurements
