For all ranges specified in the Specification, Optical Windows with AR-coating less than 1% on the surface are now used. For narrower ranges AR-coating is possible less than 0.5% per surface (on request).
For all ranges specified in the Specification, Optical Windows with AR-coating less than 1% on the surface are now used. For narrower ranges AR-coating is possible less than 0.5% per surface (on request).