Reflective Neutral Density Filter Unmounted (Visible) 20mm Diameter 40％
FND-20C02-40
The reflective ND filter is used for high power and broadband wavelength light density reducing. The untransmitted light would not be absorbed, there is no possibility of glass damaging by the heat.
◦The metal reflection coating provides an extremely smooth transmission characteristic from the UV to IR wavelengths.
◦The substrate thickness is 2mm +/−0.1mm with no difference with the transmittance.
◦The substrate thickness is 2mm +/−0.1mm with no difference with the transmittance.
| Name | Reflective Neutral Density Filter Unmounted (Visible) 20mm Diameter 40％ |
|---|---|
| Gewicht | 0.0050kgs |
| Standard Coatings Available | Nein |
| Guide |
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| Remark | - |
| Attention |
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| Image Label | Reflective Neutral Density Filter Unmounted (Visible) 20mm Diameter 40％ |
| Diameter φD | 20mm |
| Transmittance | 40% (550nm) |
| Type | Visible |
| Material | BK7 |
| Coating | Chrome coating (Cr) but FND-92, MFND-92, is no coated |
| Wavelength Range | 400 - 700nm |
| Parallelism | ＜1′ |
| Surface flatness |
λ (Measurement area: φ30mm) |
| Surface Quality (Scratch-Dig) | 60-40 |
| Clear aperture | 90% of the diameter |
| Diameter φD | φ20mm |
| Transmittance (550nm) | 0.4 |
| Availability | Please contact |
Auf Lager
SKU
FND-20C02-40
49,50 €
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The reflective ND filter is used for high power and broadband wavelength light density reducing. The untransmitted light would not be absorbed, there is no possibility of glass damaging by the heat.
