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IR blocking filter
1. Principle
Kunming Yulong Optical&Electronics Technology Co. has a high level technical team, which can provide you high quality coating services with long term. We have been working to improve coating film technology so that we can provide you reliable quality coating products with the lowest price due to reduce the cost. The glass main to block visible lght but transmit near-ir light centered around 850nm.
2. Optical Index
IR blocking filter | |
Substrate | SchottBG39 |
Dimension | Square:3.0mm-80mm Round:dia3.2mm-dia100mm: Thickness: 0.3mm-2.0mm |
Optical Parameters | T=50%@650±10nm Tmin>85%,Tave>90@420-620nm Tmax<3%,Tave<1%@700-1080nm AR coating on both sides |
| Types of waterproof | common waterproof, super-waterproof, sigle side waterproof and double-sided waterproof |
Surface Quality(Scratch/Dig) | 80/50, 40/20, 60/40 according to MIL-C48497A
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3. Optical Curve
4. Dimensions
Other dimensions of this item are also available besides the above listed. Meanwhile, the products can be customized in accordance with your requirements. Just let me know your opinion anyway!
5. Applications
Infrared monitoring and thermometer, IRD infrared detector, license plate recognition, medical monitoring and nursing, car security ranging camera, lasr night-vision, outdoors and square, infrared ink recognition, etc.
6. Principle of ion source Ion-beam Assisted Deposition
Adding ion generator-ion source in the film coating technology of thermal evaporation to produce ion beam. In the heat of the evaporation, bombard the growing membrane layer with ion beam so that the compact uniform structure can be formed. It will improve the membrane stability, and reach the purpose of achieving continue improvement of optical and mechanical properties.
7. Perfect processing chain and quality assurance
Processing
Stept 1:Prepare tooling to mount optics in chamber.
Stept 2:Clean optics and load them into tooling.
Stept 3:Clean chamber and refill with source material needed to produce coating evaporates. Prepare monitoring system.
Stept 4:Load tooling containing optical components into chamber.
Stept 5:Reduce chamber pressure to<2*10-5 Torr and heat chamber between 200 and 300.
Stept 6:Deposit coating layers as per coating design.
Stept 7:Cool and vent coating chamber.
Stept 8:Remove optics from chamber and test optics for coating performance.
Stept 9:Inspect and wrap optics.
8. Packing
Obsorb plastic box packing
We usually use PVC film vacuum packing high voltage condenser paper, PE foam, density cystosepiment, anti-static bubble bag, etc. according to different kinds of products prevent from scratching, bruising, and smashing during shipping.
9. Other items about bandpass filter you may interested in
1> 808nm bandpass optical filter
2> 905nm bandpass filter