Band-pass optical filter 10BPF10 series

band-pass optical filter
band-pass optical filter
band-pass optical filter
band-pass optical filter
band-pass optical filter
band-pass optical filter
band-pass optical filter
band-pass optical filter
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Characteristics

Type of optics
band-pass

Description

Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from X-ray to the far IR. Applications include spectra radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, or any application where spectral isolation is required. •Out-of-band blocking to less than 0.01% (10-4) •Center wavelengths available from 310 nm to 900 nm •Excellent temperature stability •25.4 mm diameter and 50.8 mm square sizes •Superior lifetime in harsh environmental conditions Scribed and Laminated Construction Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements. Bandpass Filter Transmission Curves A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM).

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