Linear Variable Filter
A linear variable filter is a wedge-shaped filter with spectral properties varying continuously along one dimension. It can replace multiple fixed filters; sliding it adjusts the center or edge wavelength. Combining linear variable long-pass and short-pass filters produces a bandpass filter, while stacking two linear variable filters can provide deep blocking.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Optical glass, quartz, silicon, sapphire, etc. |
| Dimensions (Effective Area of Graded Region) [Spectral Range ：380nm-850nm] | 22.5mm*13.7mm |
| Spectral Range [Spectral Range ：380nm-850nm] | 380nm-850nm |
| Peak Transmittance [Spectral Range ：380nm-850nm] | 5%-90% |
| Passband Bandwidth (FWHM) [Spectral Range ：380nm-850nm] | 2% * Center Wavelength |
| Cutoff OD [Spectral Range ：380nm-850nm] | OD3 |
| Linear Variation Rate [Spectral Range ：380nm-850nm] | 22.3nm/mm |
| Surface Finish [Spectral Range ：380nm-850nm] | 60-40 |
| Transmitted Wavefront Distortion [Spectral Range ：380nm-850nm] | λ/10 |
| Dimensions (Effective Area of Graded Region) [Spectral Range ：400-1000nm] | 22.5mm*13.7mm |
| Spectral Range [Spectral Range ：400-1000nm] | 400-1000nm |
| Peak Transmittance [Spectral Range ：400-1000nm] | ≥60% |
| Passband Bandwidth (FWHM) [Spectral Range ：400-1000nm] | 1.5% * Center Wavelength |
| Cutoff OD [Spectral Range ：400-1000nm] | OD3 |
| Linear Variation Rate [Spectral Range ：400-1000nm] | 50nm/mm |
| Surface Finish [Spectral Range ：400-1000nm] | 60-40 |
| Transmitted Wavefront Distortion [Spectral Range ：400-1000nm] | λ/10 |
Applications
Key Features
Datasheet
Supplier Information
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