band pass linear variable filter1

Band Pass Linear Variable Filter

Linear variable filter adopts the continuous coating method and realizes the spatial continuous change of the filter characteristics based on the multi-layer wedge film structure. The target linear rate of change can be obtained by adjusting the slope of the film according to the dispersion requirement. Linear variable filter has high integrated spectral ability, which has irreplaceable advantages in the miniaturization and lightweight design of spectral instruments. Products are widely used in lightweight hyperspectral imaging spectrometer, portable spectrometer, medical endoscope.

Specification of Band pass linear variable filter

Range of wavelength

400-1000nm

CWL

1.5%

Peak transmittance

≥60%

Depth of cut off

OD3

Wavelength of cut off

300-1100nm

Linear rate of variable

50nm/mm

Dimension

32mm×13mm

Effective size of variable area

11.3mm×11.3mm


Specification-of-Band-pass-linear-variable-filter.jpg

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