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Long Pass Filter

Long pass filter allow the longer wavelength throught, and cut off the shorter wavelength.


Product Details

Long pass filter allow the longer wavelength throught, and cut off the shorter wavelength.These filter mainly used in Beauty equipment, 

police multiband testing instruments, strong light flashlight, stage lighting shade, four-wheel, iris recognition system, face recognition 

attendance device, optical instruments.


Sample Curve

Long Pass Filter

Diameter

2mm to 200mm

Diameter Tolerance+0.00/-0.1 or customer size
MaterialN-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc.
Surface Quality80-50 to 10/5
Flatness1 lambda to 1/10 lambda
Thickness Tolerance+0.00/-0.05mm
Standard wavelength270nm,311、360、380、473、532、650、780、808、850、904、940、1064 and 1900nm.
Transmission60% to 99%
Average blockingOD6

TAGS: LPF, Long pass filters, optical glass filters m
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