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
| Material | Single Crystal Germanium |
| AR Coating Range | 3-5um |
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 |
| Parallelism | 3 arc min |
| Surface Quality | 60-40 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 Wavelength | 10.6 μm |
Silicon properties:
| | |
| | |
| | |
| | |
| | |
Dielectric Constant for 9.37 x 109 Hz | |
| | |
Thermal Conductivity, W/(m K)
at 125K
at 313K
at 400K | |
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 | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
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:
|
|
Antireflective Infrared Window , 3-5um Coated Infrared Flame Detector Silicon Windows Images
|
