公开(公告)号：US08769991B2

公开(公告)日：2014-07-08

申请号：US13278875

申请日：2011-10-21

申请人： Mikio Kenishi

发明人： Mikio Kenishi

IPC分类号： C03B19/02 ,  C03C3/247

CPC分类号： C03C3/247 ,  C03B19/02 ,  C03B2201/70

摘要： In a method for producing a fluorophosphate optical glass comprising melting a glass raw material to give a molten glass, and refining, homogenizing and then quickly quenching the molten glass to produce the fluorophosphate optical glass, even if the glass is flown from a refining tank that is set to a high temperature to an operation tank that is set to a low temperature, bubbles are not generated in the glass.The content of Fe in terms of Fe2O3 and the content of Cu in terms of CuO is controlled so that the total of the contents of Fe and Cu is 20 ppm or more, and the obtained fluorophosphate optical glass has such transmittance property that the internal transmittance in terms of a thickness of 10 mm becomes 98% or more at a wavelength region of at least from 400 to 500 nm.

摘要翻译： 在制造含氟磷酸盐光学玻璃的方法中，包括熔化玻璃原料以得到熔融玻璃，并且精炼，均化，然后快速淬火熔融玻璃以制备氟磷酸盐光学玻璃，即使玻璃从精炼罐中流出， 被设定为设定为低温的操作罐的高温，玻璃中不产生气泡。 控制以Fe 2 O 3计的Fe含量和以CuO计的Cu含量，使得Fe和Cu的含量的总和为20ppm以上，并且所得氟磷酸盐光学玻璃具有透射性，使得内部透射率 在厚度为10mm的情况下，在至少400〜500nm的波长区域为98％以上。