Valley Design Corp
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Frequently Asked Questions

No, raw materials are not available. Only polished filters are available.

The indication of the equivalent filter glasstype of Schott or Hoya is only informative – this does not imply that the filter glasstypes from Hebo is 100% identical with the Schott or Hoya glasses.

The polished filters are available in thicknesses from 0.5 up to 10.0 mm and edgelengths from 2.0 up to 200.0 mm (special dimensions upon request).

The Infrared IR Transmitting Filter IR 760 is a polished filter made according to your specifications for transmitting infrared light.

Polished samples of the HEBO filters are available from stock in Aalen / Germany of those types where the corresponding Schott designation is shown on the tables. Other samples, delivery terms and prices upon request.

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