Specification :

OLPF Filters(Optical Lowpass Filter):
Application:
Digital cameras,digital vidicons,CCTV,PC cameras
Mobile phones,surveillance camera,IP cameras
Day night camera,security cameras,IR camera
Video phones,DSLR(digital single lens reflex)
CCD camera,CMOS camera
Substrate:
Soda-lime glass ,blue glass,quartz crystal,black glass
Dimension: (unit:mm)
12.8*11.8 (1/2"), 8.8*8.2(1/3"),12*8(2/3")
7.8*7.3(1/4"), 6.0*5.0(1/5")
Normal type and day night 850/940nm type
Surface Quality
20/10,40/20,60/40(typical),80/50
AR coating on clients requests
Package:
PVC Film or Vacuum blister package
Optical low pass filter (OLPF) is used in high end (high resolution) digital camera sensor to eliminate interference influence (Moire pattern) by crystalline birefringency. An OLPF can cut off the undesired high spatial frequency when the sensor resulting the image. IR cut-off function is often incorporated into OLPF as well. Some use absorptive blue glass + AR, or direct coating an IR cut thin films layers.