Custom IR Windows Calcium fluoride CaF2 Windows,China IR Windows Calcium fluoride CaF2 Windows Suppliers

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N-BK7 Windows and H-K9L Windows
Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
High Precision Achromatic Waveplate
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IR Windows Calcium fluoride CaF2 Windows
CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance

CaF2 Window

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IR Windows Calcium fluoride CaF2 Windows

CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm.

1. Low absorption coefficient

2. High damage threshold,

3. Low Dispersion (with an Abbe Number of 95)

4. Low fluorescence

5. Excellent water, chemical, and heat resistance

product orgin:
China
shipping port:
Fuzhou China
payment:
T/T Payment, Western Union

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IR Windows Calcium fluoride (CaF2) Windows

Calcium fluoride (CaF2) is an insoluble ionic compound of calcium and fluorine. It 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. Furthermore the material is fairly inert chemically so that these windows are not attacked. Nevertheless, at wavelengths as low as 157 nm, which are interesting to semiconductor manufacturers, 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 material advantage

1. Low absorption coefficient

2. High damage threshold,

3. Low Dispersion (with an Abbe Number of 95)

4. Low fluorescence

5. Excellent water, chemical, and heat resistance

We provide artificially-crystallized calcium fluoride components available in IR grade and UV Grade. The cost of UV grade is much expensive than IR grade.

WTS make customized CaF2 window, CaF2 Lens.

Note:Fluorides are toxic to humans, however CaF2 is considered relatively harmless due to its extreme insolubility

CaF2 Windows SPECIFICATION:

Material:	CaF2
Dimension Tolerance:	+0.0, -0.1mm
Thickness Tolerance:	± 0.1mm
Surface quality:	80/50
Clear Aperture:	>85%
Flatness:	λ per 25mm
Parallelism:	3'
Bevel:	<0.25mm X 45°
Coating:	Upon requirement

CaF2 Main Properties and Performance
Transmission range (μm)	0.13~9.0
Transmittance	＞90% (0.3~7μm, 3mm)
Refractivity(5μm)	1.39908
Expansion Coefficient (℃-1)	18.85×10-6
Knoop hardness (kg/mm2)	158.3（100）
Elastic Coefficients	C₁₁=164; C₁₂=53; C₄₄=33.7
Young’s modulus (GPa)	75.79
Poisson’s ratio	0.28
Solubility (g/100gH2O·20℃)	0.0017
Cleavage plane	-111
Density(g/cm3)	3.18
Melting Point(℃)	1360

CaF2 Window Calcium Fluoride Window

Typical Sizes:
Round Shape	Φ5.0; Φ10.0 ; Φ12.7; Φ15.0; Φ20.0;
Diameter(mm):	Φ25.4; Φ30.0; Φ38.1; Φ50.8; Φ76.2
Square Shape:	5.0x5.0 ; 10.0x10.0 ; 15.0x15.0 ;
WxH(mm)	20.0x20.0; 25.0x25.0; 50.0x50.0
Thickness(mm):	0.5; 1.0; 1.5; 2.0; 3.0;
	4.0; 5.0; 6.0; 8.0; 10.0

tags : CaF2 Coated Lens IR CaF2 Windows IR Calcium Fluoride Window IR CaF2 Lens Coated CaF2 Windows

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