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Product
Optical and Laser Devices
Aspherical Mirrors
Off-axis Parabolic Mirrors SPA series
High-Precision, High-Quality
- Surface accuracy of λ/6 has been achieved by a newly-developed latest replicating technology (conventional Shimadzu product:λ/2).
- Stable quality due to premium quality master mirrors.
- Proven mass-production technology secures steady supply of large quantities.
- Non-Use of Specific Chemical Substances*1
Off-axis parabolic mirror
This aspherical mirror, which focuses parallel light to the focus point without aberrations, or converts a point light source from the focuse point into parallel light without aberrations, is used in spectroscopic systems that require high resolution.
Product List
| Code Number*1 | On-axis Focal Length f (mm) |
Off-axis Angle θ(°) |
Effective Area FA(mm) |
External Dimensions W×H(mm) |
Central Thickness T(mm) |
Part No. P/N |
| SPA275-07-6060 | 275 | 7 | Dia.56 | 60×60 | 16 | 205-87079 |
| SPA350-03-4040 | 350 | 3 | Dia.36 | 40×40 | 10 | 205-87081 |
Specifications
| Classification | Replica parabolic mirror*1 |
| Blank Material | Soda glass |
| External Dimensional Tolerance (W, H) | 0/-0.2 mm |
| Central Thickness Tolerance (T) | ±0.2 mm |
| On-axis Focal Length Tolerance (f) | ±0.5% |
| Off-axis Angle Tolerance (θ) | ±10' |
| Surface Accuracy | Within λ/6*2 |
| Coating | Al (aluminum) |
| Thermal and Humidity Conditions for Storage | 0°C to 50°C, 50% RH max. (no condensation) *When temperature is from 0゜C to 40゜C, humidity should be 80% RH max. (no condensation) |
Schematic Diagram
- Paraboric Mirrors other than standard products are available
- Specifications are subject to change without notice for improvement.
- OEM prices are also available. Please contact Shimadzu for details.
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