Bandpass filter through a designated waves，at the same time ,cutoff other disturbing light.
Bandpass filter types producted by OPTOLONG including long pass filter, short pass filter, laser bandpass filter, fluorescent bandpass filter, multi-bandpass filter and negative filters. Widely applied to the field of laser, license plate recognition, vehicle wheel alignment, biochemical analysis, the CCD / CMOS digital imaging, face / iris recognition, security cameras, infrared touch screen, somatosensory games, machine vision and other high-tech optical instruments.

Advantage of OPTOLONG’s Bandpass Filters
15 years of experience in optical filters
Ion assisted deposition technique ( IAD) using
The high film layer density, high film layer firmness, high performance and stability.
A wide range of cut-off，High cut-off depth，High transmittance.
Effectively prevent stray light interference.
All filters are RoHS requirements.
OEM and ODM are welcomed!

OPTOLONG Bandpass Filter Specifications
Substrates: B270, BK7, JGS
CWL: 250nm-2000nm
FWHM: 7nm-100nm
Blocking range: 200nm-2200nm
Blocking depth: OD2-OD6
Diameter(mm):φ3mm~φ150mm
Size(mm):3×3~150×150
Thickness(mm)： 0.3mm~6.3mm
Surface/Coating Quality: 60 / 40, 40 / 20
Bandpass transmittance:> 95% of the common
Edge Treatment(selectable):Mounted in Black Anodized Aluminum Ring