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Magnesium Fluoride Optical Protective Window

Category：

Optical Protective Window
Browse number：

5435
Release time：

2019-04-15 15:39:15

Detailed Description

HS-OPTICS offers windows of all kinds of materials and shapes

Shapes: square, circular, stepped, ellipse, ring, fan, trapezoid, triangle, conical, various special-shaped, etc.

Main material: BK7, B270, H-K9, fused silica, high borosilicate, sapphire, germanium and silicon, zinc selenide, calcium fluoride, magnesium fluoride and other kinds of high quality optical glass.

Windows are generally used as antireflection. And we can deposit windows according to customer requirements.

Technical parameters

Size range	0.5-1000mm
Size tolerance	+0.0/-0.2mm
Thickness tolerance	±0.1mm
Parallelism	＜10 seconds ~3 points
Surface accuracy	10/5~80/50
Surface quality	λ/10~λ/2
Clear aperture	＞90%
Bevelling	＜0.5mmx45°
Coating	AR coating or according to the customer request coating

Commonly used window material characteristics:

Material	Refractive index	Transmission range	Coefficient of thermal eapansion	Density (g/cm3)
H-K9	1.5164@546.1nm	330-2100nm	7.50	2.52
Fused silica	1.4586@546.1nm	185-2500nm	0.58	2.20
Borofloat33	1.4731@546.1nm	380-2100nm	3.30	2.20
Sapphire	1.7551@1000nm	180-4500nm	8.40	3.98
Germanium	4.0025@10000nm	2000-14000nm	5.5	5.33
Silicon	3.4258@5000nm	1200-7000nm	2.55	2.33
Znse	2.0428@10600nm	550-20000nm	7.6	5.27
Calcium fluoride	1.3989@5000nm	170-7800nm	18.85	3.18
Magnesium fluoride	1.3856@550nm	120-7000nm	8.48	3.17