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.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Spectral Range [Spectral Range 400-1000nm] | 400-1000nm |
| Passband Bandwidth [Spectral Range 400-1000nm；@CWL] | 1.5% @CWL |
| Peak Transmittance [Spectral Range 400-1000nm] | ≥60% |
| Out-of-band Cutoff Frequency [Spectral Range 400-1000nm] | OD3 |
| Linear Rate of Change [Spectral Range 400-1000nm] | 50nm/mm |
| Overall Dimensions [Spectral Range 400-1000nm] | 32mm×13mm |
| Effective Size of The Gradient Region [Spectral Range 400-1000nm] | 11.3mm×11.3mm |
| Spectral Range [Spectral Range 900-1700nm] | 900-1700nm |
| Passband Bandwidth [Spectral Range 900-1700nm；@CWL] | 1% @CWL |
| Peak Transmittance [Spectral Range 900-1700nm] | ≥80% |
| Out-of-band Cutoff Frequency [Spectral Range 900-1700nm] | OD3 |
| Linear Rate of Change [Spectral Range 900-1700nm] | 55nm/mm |
Datasheet
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