ASPHERES Optical Component > Precision Optics > Aspheres
 
 
Production capabilities  
 
¢Å¡¢Aspheres from glass and quartz:
- Convex and concave aspheres, bi-aspheres possible
- Diameters from 5mm to 140mm
- Minimum concave radius is around 50mm at present
- Rotational symmetric aspheres (Cylindrical,
   toric and free forms are not yet available)
- Typical materials from Schott, Ohara, Hoya, Sumita and CDGM

(2)¡¢Aspheres from IR materials:
- Convex and concave aspheres, bi-aspheres possible
- Diameters from 2mm to 200mm
- Materials: ZnS, ZnSe, Ge, Si, CaF2, metal mirrors
Coating on request£º  
 
We provide different coatings to our customers' specification such as:

- Single Layer Anti-Reflection (SLAR) Coatings
- Multi Layer Anti-Reflection (MLAR) Coatings
- Broad Band Anti-Reflection (BBAR) Coatings
- V Coatings
- Beam Splitter Coatings
- Metal Coatings (Al, Ag, Au)
- Dielectric High Reflection (HR) Coatings
- Diamond-like Carbon (DLC) Coating
- IR Coatings

We work with highly specialized partners both locally and globally. Since we believe in a mutually beneficial relationship with our suppliers, we have been cooperating successfully with our partners for years.

 
Measurement capabilities  
 
Tactile measurement:
- Taylor Hobson PGI1250
- Measurement up to 200mm, stitching of high departure lenses possible
- Highest precision offered for high departure aspheres is P-V 0.3¦Ìm typical specification offered is P-V 1.0¦Ìm

Interferometric measurement:
- QED SSIA
- Measurement up to 200mm is possible on low departure aspheres
- Measurement limited to aspheres with a departure up to
0.060mm from base radius
- Highest precision offered is P-V 0.15¦Ìm
- QED SSIA is combined with correction on MRF polishing