Long Wavepass filter

Long wavepass filters are designed to achieve efficient separation of adjacent spectral bands. The cut-on edge of the filter may be located between 0.85 and 11 microns

Specifications

Transmission

>90%

at wavelengths longer than the cut-on edge. Extent of transmission region is typically in the ratio of 2:1

Attenuation

<0.1%

at wavelengths shorter than the cut-on edge.

Edge Slopes

3%-5% typically

Environmental Properties

Adhesion

MIL-C-48497A, 08/09/1980, para 4.5.3.1

Tape test

Humidity

MIL-C-48497A, 08/09/1980, para 4.5.3.2

24hrs, 48°, 95% relative humidity

Abrasion

MIL-C-48497A, 08/09/1980, para 4.5.3.3

Moderate, 50 strokes with a cheesecloth

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Umicore Coating Services

Kinnoull Street
Dundee
DD2 3ED
UK
Tel: +44 1382 833 022
Fax: +44 1382 833 824
coatingservices@umicore.com