Optical 850nm IR bandpass Filter

OD5 Optical 850nm IR Bandpass Filter

Narrow-band filter is subdivided from the bandpass filter, and its definition is the same as the bandpass filter, that is, the filter allows the light signal to pass in a specific band, and the light signal on both sides is prevented from deviating from this band. The passband of narrow-band filter is relatively narrow, generally less than 5% of the central wavelength value.

The main function of the narrow-band filter is to allow specific wavelengths of light through, let other wavelengths of light reflected (or attenuated) optical elements. The half wave width is usually controlled at 20nm or less, and can be used in ultraviolet, visible, near infrared, and far infrared wavelengths. Our company's narrow-band filter is made of multi-layer hard film by high vacuum evaporation of ion-assisted deposition nanomaterials, which has good film density and high imaging clarity.

Product advantages:

Single sheet type is not glued

Hard film plating, long service life

Wavelength localization

Ion evaporation, small temperature drift

penetrate

Cut-off depth height

Specification