Part No:BPF-850BC
Name:850nm bandpass filter,LPR Filter
Application:ANPR,licence plate recognise
Feature:deep blocking ,grey type images
Substrate:color glass,Soda-lime glass
Size:Φ12X2.0mm,custom design available
Optical parameter
CWL:850±10nm,Tpeak>85% FWHM:60±10nm,
Blocking:Tave<0.5%,Tmax<1%@300-790nm and 920-1100nm
Definition of a ANPR or LPR filter
An ANPR filter is used on ANPR cameras. ANPR is Automatic Number Plate Recognition.
A LPR filter is used on LPR camera. LPR is License Plate Recognition.
Recognizing a vehicle number plate is a too difficult job for a standard
CCTV camera. The main problem is the exposure caused by headlight at
night, but even during the day the light reflection on the number plate
can make the number recognition virtually impossible.Accute Optical's
part BPF-850BC is a 850nm IR bandpass filter,which is specially designed
for ANPR or LPR cameras. It can remove strong light or glare form the
headlight and get clear grey images.
