λ/20 First Surface Mirrors
Original price was: $112.50.$78.75Current price is: $78.75.
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TECHSPEC® λ/20 First Surface Mirrors are polished to industry leading surface accuracy and quality specifications to minimize reflected wavefront error. These mirrors feature a precision fused silica substrate with a low coefficient of thermal expansion. Multiple coating options are available, allowing these mirrors to be integrated into applications spanning the visible through infrared spectra. TECHSPEC® λ/20 First Surface Mirrors are ideal for beam steering and reflection applications and are available in a variety of size, thickness, and coating options.
Note: Surface flatness is measured before coating.
- Precision Fused Silica Substrate
- 20-10 Surface Quality
- Low Coefficient of Thermal Expansion
| Surface Flatness (P-V) | λ/20 (flatness pre-coating) |
|---|---|
| Substrate | Fused Silica (Corning 7980) |
| Back Surface | Commercial Polish |
| Surface Quality | 20-10 |
| Dimensional Tolerance (mm) | +0.00/-0.20 |
| Coating Type | Metal |
| Clear Aperture (%) | 90.00 |
| Edges | Ground, protective bevel as needed |
| Parallelism (arcsec) | 30.00 |
| Thickness Tolerance (mm) | ±0.20 |
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