CaF2 Window

CaF2窗片是晨征光电的优势产品之一。 氟化钙窗片无色透明,透过率高,不易潮解

CaF2窗片广泛地应用于红外以及紫外波段,具有良好的光学性能、机械性能及物化稳定性, 有透光范围宽广(0.125 ~ 9μm)、透过率高, 折射率低, 相对色散大等优点通常用作电子传感器或外在环境的检测器的保护窗。


(2)可提供窗片厚度:常规2mm, 3mm, 4mm以及1.0-20.0mm范围内定制

CaF2 Window Specifications:

Attribute General High Precision
Dimension Tolerance: +0.0/-0.2mm +0.0/-0.02mm
Thickness Tolerance: ±0.2mm ,±0.05
Surface Quality: 80/50 40/20
Clear Aperture: >90% >95%
Flatness: λ/2 λ/10
Parallelism: <3 arc min. <3 arc sec.
AR Coated: Uncoated, AR, HR, PR, etc. Uncoated, AR, HR, PR, etc.

CaF2 Window Typical Sizes:

Round Shape: Diameter(mm): Φ5.0 , Φ10.0, Φ12.7.0, Φ15.0,Φ20.0, Φ25.4, Φ38.1, Φ50.8, Φ76.2
Square Shape: WxH(mm) 5.0×5.0, 10.0×10.0, 15.0×15.0, 20.0×20.0, 25.0×25.0, 50.0×50.0
Thickness: 0.5,1.0,1.5, 2.0, 3.0, 4.0, 5.0,6.0, 8.0,10.0, 50.0

Dimensions are available upon your request.

Note for CaF2 Window:
(1). Custom-made CaF2 windows at any size are available.
Besides round, CaF2 windows at shape of quadrate, triangular, or other polygonal are available.
(2). Typical thickness is 2mm, 3mm, 4mm, other thickness from 1.0mm to 20.0 mm is available.
(3). Better bevel is available upon request.
(4). CaF2 Windows with Anti-Reflective(AR), High-Reflective(HR), Partial-Reflective(PR) coating are available.

This kind of windows si made from Custom-made CaF2. Fluorides are usually toxic to humans, however CaF2 is considered relatively harmless due to its extreme insolubility. The material is commonly used as a window material for both infrared and ultraviolet wavelengths, since it is transparent in these regions (about 0.15 μm to 9 μm) and exhibits extremely weak birefringence. The birefringence of calcium fluoride exceeds tolerable limits. This problem with birefringence can be mitigated through optimised growth process. It is particularly important as an ultraviolet optical material for integrated circuit lithography.

CaF2 Window Specifications:

Dimension Tolerance: +0.0/-0.2mm
Thickness Tolerance: ±0.2mm(General),±0.05(High Precision)
Surface Quality: 80/50(General),40/20(High Precision)
Clear Aperture: >90%
Flatness: λ/2@633nm(General),λ/10@633nm Precision)
AR Coated: Uncoated, AR, HR, PR, etc.


CaF2 Window Typical Sizes:

Round Shape:Diameter(mm): Φ5.0;Φ10.0 ;Φ12.7;Φ15.0;Φ20.0;
Square Shape:WxH(mm) 5.0×5.0;10.0×10.0 ;15.0×15.0 ;
Thickness Tolerance: 0.5;1.0;1.5;2.0;3.0;4.0;
5.0;6.0;8.0;10.0; 50.0

High quality CaF2 MgF2 Windows, Optical Windows
An Optical Window is an optically flat. These regular windows are applied to isolate different physical environments while allowing light pass. When selecting windows,please consider materials, transmission, scattering, parallelism and resistance to certain environment. It can be widely used on laser technology, IR detector and imaging technology etc.

Astar offers standard and high precision optical glass windows in round ,rectangular, wedge windows and custom shape and size with different optical glasses,Fused Silica, Sapphire, ZnSe, Zns and IR crystal. The high precision parallelism of 10 arc seconds, surface quality of 10/5 and flatness of λ/20. Single layer or multi-layer anti-reflection coatings are available.