Infrared Pass Filter(NIR) : Application:IR Cameras, Infrared water analyzing system,surveillance camera,night vision machine, IR Illumination ,infrared flash lamp,IR ... 170mm Round Type:φ4mm~φ160mm Thickness:1mm~4mm IR pass filter means transmit the IR light and blocking visible light ... wavelengths 400nm~700nm.Our IR pass filter is made by black or red IR glass.The ...