Committed to the Future, Fulfilling the Promise of Excellence

Items of anti-refraction coating include silver, gold or dielectric coating, we our design according to customers’ requirements to provide the best reflectivity in designated band.


Specifications

Material BK7、Borofloat Borosilicate glass、Fused silica、Pyrex Borosilicate glass、ZERODUR、CLEARCERAM™-Z、Stavax stainless steel、Al、 Cu、 Ni、 Ceramics、customer designated materials.
Diameter(Φ) 2mm~1800mm
Radius(R) Specified by customer
  Low grade General grade High grade
Diameter tolerance +/-0.5 ±0.1mm ±0.1mm
Surface quality 80/50 60/40 20/10
Surface accuracy 1/2λ 1/10λ
Radius tolerance (ΔR) R/300 R/500 R/1000
Thickness tolerance +/-0.2 ±0.1mm ±0.01mm
Clear Aperture 85% 90% 100%
Centration 5 arc min 3 arc min 15 arc sec
Coating Aluminum coating 
Silver coating
Gold coating
Multilayer dielectric coating
Specified by customer
Aluminum coating 
Silver coating
Gold coating
Multilayer dielectric coating
Specified by customer
Aluminum coating 
Silver coating
Gold coating
Multilayer dielectric coating
Specified by customer