940nm Filter, IR Infrared Filter, Narrow Bandpass Filter manufacturer / supplier in China, offering 940nm IR Infrared Optical Narrow Bandpass Filter, Customized Optical IR Cut off Narrow Band Pass Filter, Medical Instrument Optical Glass Rod Lens for Arthroscopy and so on.
Min. Order / Reference FOB Price | |
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10 Piece | US $10.00/ Piece |
Local Area: | Shenzhen, Guangdong, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | T/T, PayPal, WesternUnion |
Usage: | Lighting, Medical, Optical, Photography |
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Type: | Flat Lens |
Transmittance: | >95% |
MaterialsBK7,K9,B270,etc or customDiameter40mmDiameter Tolerance-0.00/-0.10mmThickness Tolerance+/-0.10Focus Length Tolerance+/-2%Centration<3 minutesSurface Quality60-40Surface Figureλ/4@633nmBevel<0.25mm X 45°Clear ApertureCentral 85% of diameterCoatingSpecified by custom
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1. Great care should be taken when handling infrared optics. Please note the following precautions :
1) Always wear powder-free finger cots or rubber/latex gloves when handling optics. Dirt and oil from the skin can severely contaminate optics, causing a major degradation in performance.
2) Do not use any tools to manipulate optics -- this includes tweezers or picks.
3) Always place optics on supplied lens tissue for protection.
4) Never place optics on a hard or rough surface. Infrared optics can be easily scratched.
5) Bare gold or bare copper should never be cleaned or touched.
6) All materials used for infrared optics are fragile, whether single crystal or polycrystalline, large or fine grained. They are not as strong as glass and will not withstand procedures normally used on glass optics.