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Products > Optical Elements > Filters > Linear Gradient Filter
Linear Gradient Filter
Product name : Linear Gradient Filter
Product No. : 202199104017
Material : Optical glass, Quartz, Silicon, Sapphire, etc
Size : 22.5*13.7mm; 50.8*25.4mm; 76.2*25.4mm or according to customer requirements
Density(g/cm3) : 
Refractive Index : 
Form : Disc, Square
Purity : 
Application : Hyperspectral imaging; Fluorescence microscope; Medical endoscope
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  Details:
Linear gradient filter is a wedge filter, which has the advantages of small volume, high light efficiency and high signal-to-noise ratio.
 
The spectral characteristics change continuously along a dimension direction of the filter. A gradient filter can replace multiple fixed filters, and the center wavelength or edge wavelength can be adjusted by sliding the filter. A band-pass filter can be obtained by superimposing a linear gradient long-pass filter and a linear gradient short-pass filter, or two linear gradient filters can be superimposed to achieve depth cutoff.

Dimensional tolerance: +/- 0.15mm
Thickness tolerance: ±0.1mm
Surface quality: 80-50
Standard linearity: +/- 5%
Parallelism: < 3 points
Standard deviation of the deepest point of optical density: +/- 5%
 

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Band Pass Filters
Band Pass Filters

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