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900-1700 nm linear gradient filter
Linear gradient filters employ a continuous coating process and rely on a multi-layer wedge-shaped thin-film structure to achieve spatially continuous variation in optical filtering characteristics. By adjusting the slope of the thin film according to dispersion requirements, it is possible to obtain the desired linear variation rate. Linear gradient filters boast highly integrated spectral separation capabilities, making them indispensable in the miniaturization and lightweight design of spectroscopic instruments. These products are widely used in lightweight hyperspectral imaging spectrometers, portable spectrometers, and medical endoscopes.
- Produktbeschreibung
- Parameter-Einführung
- Vorsichtsmaßnahmen
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Product Performance
Type Linear gradient filter Performance parameters Spectral range 900-1700nm Passband bandwidth 1%@CWL Peak transmittance ≥80% Out-of-band cutoff frequency OD3 Linear rate of change 55nm/mm Spectral curve

Application areas
1. Lightweight Hyperspectral Imager
2. Portable Spectrometer
3. Medical endoscopes
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