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Glass viewports are now available with anti-reflective coating as a standard option. They are available from stock in flange sizes 1.33, 2.75 and 4.50” OD Del Seals. Anti-reflective coatings increase the transmissive characteristics of the optic by almost completely removing any reflective losses from both surfaces. Three standard A/R coatings are available at specific wavelengths 780nm and 1064nm and also with a broadband coating at 780-1064nm.
A/R coating at 780nm & 1064nm transmission 99.5% min
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