China Calcium Fluoride Windows Facotry Products

Calcium Fluoride is good choice for optical windows in the 0.15 μm - 9 μm range,which is relatively soft and somewhat hygroscopic so polishing, coating and handling are more critical than UV Fused Silica windows. In addition, The quality of a UV window can be extremely critical, it should be of high purity and polish in order not to affect the optical system.
Calcium Fluoride Windows are also applicable for a wide range of spectrum. It is particularly useful for wavelength at 2980nm laser application.
Due to its low refractive index, Calcium Fluoride can be used without anti-reflection coating.

Standard Specifications: Optical Material:
Diameter Tolerance:
Thickness Tolerance:
Clear Aperture:
Parallelism:
Surface Quality:
Wavefront Distortion:
Bevel:
Coating:Calcium Fluoride Single Crystal
+0.0, -0.1mm
± 0.2mm
>85%
<3 are minutes
see the able
see the table
<0.25mm X 45°
available upon request

Standard MgF2 WindowsDia(mm)Thickness(mm)Wavefront DistortionSurface QualityProduct NumberParallelism 10 arc sec8.00.5Lambda/440-20ICC000112.72.0Lambda/440-20ICC000215.02.0Lambda/240-20ICC000325.42.0Lambda/240-20ICC000438.102.0Lambda/260-40ICC0005Parallelism 1 arc min10.01.0Lambda per 25mm80-50ICC010112.73.0Lambda per 25mm80-50ICC010215.02.0Lambda per 25mm80-50ICC010325.43.0Lambda per 25mm80-50ICC10438.103.0Lambda per 25mm80-50ICC010550.08.0Lambda per 25mm80-50ICC0106