Contrast enhancement in glass
    1.
    发明授权
    Contrast enhancement in glass 失效
    玻璃对比增强

    公开(公告)号:US5190896A

    公开(公告)日:1993-03-02

    申请号:US904098

    申请日:1992-06-25

    IPC分类号: C03C3/095 C03C4/02 C03C4/08

    摘要: A colored, chemstrengthenable contrast enhancement, UV attenuated glass (e.g., for sunglasses) comprises, in weight percent,______________________________________ Oxide Wt. % ______________________________________ SiO.sub.2 40-72 B.sub.2 O.sub.3 0-13 Al.sub.2 O.sub.3 0.5-3 Li.sub.2 O 0-3 Na.sub.2 O 8-13 K.sub.2 O 1-10 TiO.sub.2 8.0-9.5 CeO.sub.2 2.6-3.5 Nd.sub.2 O.sub.3 5-17 Fe.sub.2 O.sub.3 1.40-2.10 CoO 0-0.07 NiO 0-0.4 CuO 0-0.5 Er.sub.2 O.sub.3 0-2 V.sub.2 O.sub.5 0-0.5 Cr.sub.2 O.sub.3 0-0.25 ______________________________________ and has the following properties% T (2.0 mm) 400 nm: .ltoreq.2.2%% T (2.0 mm) 380 nm: 0.0%a: -1.0 to -7.5b: +1.0 to +10.0.

    摘要翻译: 紫外线衰减的玻璃(例如太阳镜)的有色的,可强化的对比度增强包含重量百分比的氧化物。 %-SiO 2 40-72 -B 2 O 3 0-13 -Al 2 O 3 0.5-3 -Li2O 0-3 -Na2O 8-13-K2O 1-10 -TiO 2 8.0-9.5 -CeO2 2.6-3.5 -Nd2O3 5-17 -Fe2O3 1.40- 2.10 -CoO 0-0.07 -NiO 0-0.4 -CuO 0-0.5-Er2O3 0-2 -V2O5 0-0.5 -Cr2O3 0-0.25 - 具有以下特性%T(2.0mm)400nm: