Bandpass Filters
Bandpass filter is the simplest yet and the most economical method to transmit the light with certain wavelength while block the unwanted radiation.
Bandpass filter is the glass substrate coated with multiple layers of dielectric thin films that interfere the transmission of the light. Currently we have bandpass filter that transmit 365 / 650 / 780 / 850 / 940nm radiation, and are popular in optical inspection and detection.
If other type of bandpass filter is required, please contact us for more detail.
Features
● Perfect piece-to-piece, batch-to-batch consistency
● Great transmission of the required radiation
● Great blocking of unwanted radiation
Examples of Applications
● Machine Vision
● Image Sensor
● Automated Optical Inspection
General Specification
● Available Substrate: See Glass Substrates under Products Page
● Humidity, Adhesion, and Abrasion: MIL-M-13508C
Bandpass Filters 365nm
Optical Specification
Bandpass 365nm:
300~320nm Tavg<1%
340~370nm Tavg>80%
400~700nm Tavg<1%
Bandpass Filters 650nm
Optical Specification
Bandpass 650nm:
400~550nm Tavg<3%
620~670nm Tavg>90%
710~800nm Tavg<3%
Bandpass Filters 780nm
Optical Specification
Bandpass 780nm:
400~740nm Tavg<1%
775~785nm Tavg>85%
820~1100nm Tavg<1.5%
Bandpass Filters 850nm
Optical Specification
Bandpass 850nm:
400~760nm Tavg<2%
840~860nm Tavg>90%
920~1100nm Tavg<2%
Bandpass Filters 940nm
Optical Specification
Bandpass 940nm:
400~830nm Tavg<1%
930~950nm Tavg>90%
1050~1100nm Tavg<2%