Day and Night filters are used in CCD or CMOS imaging system. It allows both visible and 850nm infrared LED light to pass through，but cut off the NIR region from 950nm-1100nm. This filter allows the imager to work both at day and night. The application areas concern the secure monitoring, security cameras,digital camera, visual telephone, visual doorbell, digital telescope and etc.

400-420 nm

Tmin.≥80%

420-620 nm

Tmin≥85%, Tave≥90%

645±10nm

T=50%

700-760 nm

T<2%

850±15 nm

T>85%

930 -1000 nm

Tmax≤3%, Tave<2%

1000 - 1100 nm

Tmax≤5%

Substrate

D263T、B270、BK7 or Other floatglass

Thickness

0.3～1.1mm

Surface

40/20,60/40

Square type

（3～15）×（3～15）mm

Round type

φ3～20mm