Services
Our specialty is growing and machining of synthetical sapphire:We grow sapphire in optical quality (Czochralski method). We also offer special growth techniques for UV-range (ca. 200 nm) with low fluorescence.We even offer sapphire which is practical dispersion-free.
- Saphir-Boules
- Discs, plates, rods: sawn or fine ground
- Windows (diameter max. 300mm)
- Square plates
- Lenses
- Micro lenses
- Spheres
- Domes
- Multi-layer glass
- Prisms
- Tubes, capillary, rods
- Substrates / Wafers
- Sawing
- Milling
- Drilling
- Ultrasonic machining
- Grinding
- Centering
- Lapping
- Polishing
- Matting
- Merging
- AR coating
- Mirrors
- Surface metallization
- Annealing
- Sapphire
- Ruby
- YAG
- Quartz
- BK7
- Pyrex
- Silicon
- Calcium Fluoride
- Magnesium Fluoride
- Zinc Selenide
- Germanium
- Alumina
- Zirkonium Oxide
Standard-Tolerances | Best Tolerances |
---|---|
Shape tolerances: < 5 mm: +/- 0,05 mm > 5 mm +/- 0,1 mm | Shape tolerances: +/- 0,01 mm and better |
Finish surface quality: max 3 Rauten according to DIN 3140 or max Ra 0,1µ or 5/3×0,25 according to DIN 3140 (scratch dig 80-50) | Finish surface quality: max 4 Rauten according to DIN 3140 or max Ra 0,01µ or 5/4×0,025 according to DIN 3140 (scratch dig 10-5) |
Paralellism: < 1 arcmin | Parallelism: < 10 arcmin |
Planarity: 2 Lambda at 633 nm / 25 mm-range | Planarity: Lambda/10 at 633 nm / 25 mm-range |
Orientation: every orientation with tolerance of max +/- 3° | Orientation: every orientation with tolerances of max +/- 1° |
Chamfer: 0,2-0,3 mm/45° (otherwise chips until 0,2 mm) | Chamfer: 0,05 mm/45° (sharp edges) |
The quality of our products is constantly monitored during the process of manufacturing.
We use the following technology:
- Autocollimator (Logitech)
- X-Ray Spectrometer
- Roughness test aparatus (Mahr, Homel)
- Profile test aparatus (Mahr, Homel)
- Microscopes (Zeiss, Leitz)
- Digital Microscope (Keyence)
- and many more…
If desired, we deliver test certificates along with the order