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    • 7. 发明授权
    • Phosphate optical glass
    • 磷酸盐光学玻璃
    • US09434636B2
    • 2016-09-06
    • US14358467
    • 2012-02-06
    • Wei Sun
    • Wei Sun
    • C03C3/21C03C3/19C03C3/064
    • C03C3/21C03C3/064C03C3/19
    • The invention including phosphate optical glass with refractivity ranging from 1.93 to 1.95 and the Abbe number ranging from 16 to 19, with a low liquidus temperature. The phosphate optical glass, including: 5 to 25 wt % of NaPO3, 1 to 20 wt % of KPO3, 2 to 15 wt % of P2O5, 0 to 5 wt % of BaO, 0 to 10 wt % of Ba(PO3)2, more than 0 but less than 2 wt % of B2O3, 5 to 25 wt % of TiO2, 35 to 55 wt % of Nb2O5, and 0 to 5 wt % of SiO2. Refractivity of phosphate optical glass can reach 1.93 to 1.95, the Abbe number can reach 16 to 19, the liquidus temperature is below 1,120° C., the processing property during melting is good, the glass surface is unlikely to be devitrified during the processing of the glass, and can be formed easily.
    • 本发明包括折射率范围为1.93至1.95,阿贝数为16至19的磷酸盐光学玻璃,液相线温度低。 磷酸盐光学玻璃包括:5〜25重量%的NaPO 3,1〜20重量%的KPO 3,2〜15重量%的P 2 O 5,0〜5重量%的BaO,0〜10重量%的Ba(PO 3)2 ,B2O3超过2重量%,TiO 2为5〜25重量%,Nb 2 O 5为35〜55重量%,SiO 2为5〜5重量%。 磷酸盐光学玻璃的折射率可达1.93〜1.95,阿贝数可达16〜19,液相线温度低于1120℃,熔融时的加工性能好,加工过程中玻璃表面不易失透 玻璃,并且可以容易地形成。