Custom Aspheres
Custom Aspheres
Looking for a custom solution? Discover our customized aspheres with unsurpassed surface quality and following specifications:
- Aspheric optics for UV/VIS/IR range
- Individual optical designs for for all types of applications
- Diffraction-limited quality with a Strehl ratio up to 0.99
- Outstanding surface quality with roughness values as low as 5 Å
- High-end optical coatings
Comparison
| Standard-Quality | Precision-Quality | High-End-Finishing | Diamond-Turning | |
|---|---|---|---|---|
| Diameter | 8-300 mm | 4-250 mm | 6-300 mm | 1-420 mm |
| Center thickness | 2-60 mm | 2-60 mm | <60 mm | from 0.5 mm |
| Irregularity | 10-4 fr (2.5-1 µm) | 1 fr (0.3 µm) | 0.03 fr (0.08 µm) | 100 nm |
| RMS Irregularity | 3-1.2 fr (0.75-0.3 µm) | 0.3 fr (0.09 µm) | 0.1 fr (0.03 µm) | 20 nm |
| Surface roughness | 3 nm | 1.5 nm | 0.5 nm | 1 nm |
| Measurement | Full-surface interferometric optional | Full-surface interferometric optional | Full-surface interferometric guaranteed | Full-surface interferometric guaranteed |
Advantages
From prototype construction and small quantities to small and large series: asphericon convinces with precision that surpasses standards. Since 2008, the company fulfills the high demands of ISO 9001 for high-quality work processes.
... and a patented control software which is constantly being further developed allow highest quality, flexibility and economy. Convince yourself not only of asphericon's manufacturing technologies, but also of its unique High-End-Finishing processes, ultra-precise measurement capabilities and high-quality coating technologies (e.g. sputtering).
From analysis and conception to final implementation and characterization: asphericon develops the best possible optical design based on your requirements and pays particular attention to optimum development and production times – while always keeping an eye on the costs for our customers. Together we will find the right solution for your application.
Technological leadership combined with a broad range of products and services form the basis for asphericon's specific optical solutions. As a reliable partner, we are happy to advise and support you in numerous areas, such as the first optical design, manufacturing and coating, high-precision measurement, and optical characterization.
Aspheres for Sentinel-4 satellite
Customer Reference
Project Details
The Sentinel-4 satellite is part of the Copernicus programme, a joint EU-ESA project. Equipped with two high-resolution spectrometers, its mission is the complete monitoring of Europe and North Africa for high-precision real-time data for environmental management.
Project Realisation
- Developing and manufacturing lenses to withstand extreme conditions in space
- Through development work and complex test procedures with demanding materials (e.g., CaF2)
- Aspheres with diameters of 50 mm to 80 mm, a spectral resolution of 0.12 to 0.5 nm, and Ångstrom polish roughness values of 5 Å
+49 (0) 3641 3100 560 
sales@asphericon.com