Infrared(IR) Blocking Filters(Reflective type,IR coating)
Application:
cameras,Digital cameras,digital vidicons,CCTV,PC cameras,mobile phones ,surveillance camera,digital imagers,color imager,IR photometric systems,remote control units,security systems,scanners.
Substrate:
B270/D263T/BK7 optical glass
Dimension:
Round Type:φ3mm~φ20mm
Squarte Type:3mm~15mm
Thickness:0.3mm~1.1mm
Custom design dimension available
Spectral Data:
Transmission wavelength:
Tave≥92％ Tmin≥85％
Rejection wavelength:
720～1100nm Tave≤1％ Tmax≤2%
850～1050nm Tave≤0.3％ Tmax≤1％
Part No:IBG-630,IBG-638,IBG-640,IBG-645,IBG-648,IBG-650
The IR-cut filter is a short pass filter that blocks infrared light and transmits the visible.
Infrared (IR) cut-off filters are used with color CCD or CMOS imagers to produce true color images. An IR cut-off filter blocks the transmission of the infrared while passing the visible. This can be done with two optical techniques: absorption or reflection. Absorptive filters are made with special optical glass that absorbs near infrared radiation. Reflection type filters are essentially short-pass interference filters that reflect infrared light with high efficiency.
