Glass with very high index of refraction and low density

    公开(公告)号:HK1001046A1

    公开(公告)日:1998-05-22

    申请号:HK98100151

    申请日:1998-01-08

    Applicant: CORNING INC

    Abstract: This invention relates to glasses exhibiting refractive indices higher than 1.880, Abbe numbers of at least 29, densities lower than 4.1, good chemical durability and stability against devitrification, and an integrated transmission over the range of 380-800 nm at a thickness of 10 mm greater than 79%, the glasses consisting essentially, expressed in terms of weight percent on the oxide basis, of

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