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Antireflective Infrared Window , 3-5um Coated Infrared Flame Detector Silicon Windows

Antireflective Infrared Window , 3-5um Coated Infrared Flame Detector Silicon Windows

Brand Name:Wuhan Siwer Optics
Minimum Order Quantity:100 pieces
Delivery Time:3-5 weeks
Payment Terms:T/T, Western Union
Place of Origin:Wuhan,China
Price:6-15USD/piece
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Location: Wuhan Hubei China
Address: Building 7, No. 116, Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province
Supplier`s last login times: within 26 hours
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Product Details

Infrared flame detector Silicon windows

A flame detector usually needs to detect 4.4um infrared light. Our silicon protection window can not only cut off the interference light of visible light and near-infrared light, but also has a very competitive price.



Optical Properties of Silicon Window

MaterialSingle Crystal Germanium
AR Coating Range3-5um
Reflectance over
AR Coating Range @ 0° AOI

Ravg < 1.5%,3-5um

Transmission over
AR Coating Range @ 0° AOI
Tavg > 97%,3-5um
Diameter Tolerance+0.0/-0.1 mm
Thickness Tolerance±0.1 mm
Parallelism3 arc min
Surface Quality60-40 Scratch-Dig
Surface Flatness
(Plano Side)
λ/2 at 633nm
Surface Irregularity
(Peak to Valley)
λ/2 at 633nm
Clear Aperture>Ø10.16 mm (Ø1/2" Lenses)
>Ø20.32 mm (Ø1" Lenses)
Design Wavelength10.6 μm



Silicon properties:

Chemical Formula
Si
Molecular Weight
28.09
Crystal Class
Cubic
Lattice Constant, Å
5.43
Density, g/cm3 at 293 K
2.329
Dielectric Constant for 9.37 x 109 Hz
13
Melting Point, K
1690
Thermal Conductivity, W/(m K)
at 125K
at 313K
at 400K

598.6
163
105.1
Thermal Expansion, 1/K
at 75K
at 293K
at 1400K

-0.5 x 10-6
2.6 x 10-6
4.6 x 10-6
Specific Heat, cal/(g K)
at 298K
at 1800K

0.18
0.253
Debye Temperature, K
640
Bandgap, eV
1.1
Solubility in water
None
Knoop Hardness, kg/mm2
1100
Mohs Hardness
7
Young's Modulus, GPa
130.91
Shear Modulus, GPa
79.92
Bulk Modulus, GPa
101.97
Poisson's Ratio
0.28


Infrared Elements Selection Guide

Procedure


What's the way of shipping?
We accept DHL, Fedex, TNT, UPS, SF, EMS etc. If you have your own express account, it's great.


How to pay?

(1) T/T, PayPal, West Union,etc

(2) Bank Fee: West Union-USD30.00(≤USD3000.00),

T/T-USD20.00+, PayPal-5%. Please consult the local bank.


What's the deliver time?
For inventory: the delivery time is around 5 workdays.

Customized products: the delivery time is 10 to 30 workdays. According to the quantity and precision.

Can I customize the products based on my need?
Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. OEM is available.


Product Tags:
China Antireflective Infrared Window , 3-5um Coated Infrared Flame Detector Silicon Windows supplier

Antireflective Infrared Window , 3-5um Coated Infrared Flame Detector Silicon Windows

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