Optical Bandpass Filters

We offer optical bandpass filters.
*bandpass filter plate are divided into short-pass and long-pass filters according to whether they transmit below or above the transition wavelength. The transition wavelength or cut-on/off wavelength is the wavelength at which the transmission is 50% of its peak value.
*specifications:
material: n-bk7 ;fused silica
dimension tolerance: +0.0, -0.1mm
thickness tolerance: ±0.1mm
surface quality: 60/40
clear aperture: >85%
parallelism: λ /4 per 25mm@633nm
bevel: ±3'
coating: one surface(s1) :hr & ht
the other surface(s2):upon requirement
*please feel free to contact with us.your specific requirements will be satisfied in professional service.more information,please refer to http.