Narrowband interference filter, one of five, type

Made:
1973 in Glasgow
manufacturer:
Barr and Stroud Limited
and
Barr and Stroud Limited
and

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Narrowband interference filter, one of five, type MD4 (peaks at the wavelengths 436, 546, 626, 672, and 766 n.m.), by Barr and Stroud Ltd., Glasgow, Scotland, 1973. (red)

Details

Category:
Optics
Object Number:
1973-192/1
credit:
Thales UK Ltd