BK7 Glass

N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications

BK7 is a standard glass for all kinds of optics The SCHOTT glass is nearly bubble free, has an excellent clarity, and a very low amount of inclusions

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bk77 slot N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications