Product features:

Band pass filter is a kind of low bandwidth, can let a particular band of light through, allowing the rest of the shortwave longwave band cutoff or reflective optical devices.

My company bandpass interference filters with multiple dural by ion assisted deposition of nanometer materials and high vacuum evaporation coating, good compactness, high imaging definition, thin thickness.

Optical indicator:

The center wavelength: 850 ± 2nm

Transmittance: T>91%

Bandwidth: 40nm

Stop band 400nm-820nm

900nm-1100nm

The cutoff rate: T<0.1%

Application fields:

Widely used in high-definition digital cameras, the fluorescence analyzer, cable television to upgrade equipment, wireless transmission equipment, mobile phone bar code scanning, infrared electronic whiteboard, infrared cameras, infrared touch screen, iris recognition, medical instrument, infrared ink identification system. CMOS chip package, color temperature orange, handheld infrared laser range finder, four Locator, optical instruments, medical equipment and testing apparatus.

850nm bandpass filter, widely used in large enterprises, financial system, financial companies, credit companies, public security, frontier defense, security, police, customs, ancient calligraphy identification fields.