公开(公告)号：US4323654A

公开(公告)日：1982-04-06

申请号：US248001

申请日：1981-03-26

Applicant: Paul A. Tick ,  Leon M. Sanford, deceased

Inventor： Paul A. Tick ,  Leon M. Sanford, deceased

IPC: C03C3/19 ,  C03C3/14 ,  C03C3/16

CPC classification number: C03C3/19

Abstract: Alkali-Ta.sub.2 O.sub.5 -B.sub.2 O.sub.3 -P.sub.2 O.sub.5 glass compositions suitable for providing molded optical elements or the like, exhibiting glass transition temperatures below 500.degree. C., refractive index values (n.sub.d) above 1.523, and acceptable water durability are disclosed.

Abstract translation: 公开了适用于提供模制光学元件等的铝 - Ta 2 O 5 -B 2 O 3 -P 2 O 5玻璃组合物，其玻璃化转变温度低于500℃，折射率值（nd）高于1.523，并且具有可接受的耐水性。

公开(公告)号：US4285730A

公开(公告)日：1981-08-25

申请号：US198437

申请日：1980-10-20

Applicant: Leon M. Sanford ,  Paul A. Tick

Inventor： Leon M. Sanford ,  Paul A. Tick

IPC: C03C3/247 ,  C03C3/16

CPC classification number: C03C3/247 ,  Y10S501/903

Abstract: The instant invention is concerned with the production of glasses which are capable of being molded or otherwise shaped under pressure at temperatures not exceeding about 450.degree. C. Such glasses consist essentially, in mole percent as analyzed on the oxide basis, of at least 20% but less than 50% P.sub.2 O.sub.5, 15-45% R.sub.2 O, wherein R.sub.2 O consists of 0-45% Li.sub.2 O, 0-20% Na.sub.2 O, and 0-10% K.sub.2 O, and 0-20% RO, wherein RO consists of 0-10% MgO, 0-15% CaO, 0-20% SrO, and 0-20% BaO, with about 0.3-3% by weight F as analyzed in the final glass. Useful additions to the base compositions include PbO, La.sub.2 O.sub.3, ZnO, and B.sub.2 O.sub.3.

Abstract translation: 本发明涉及能够在不超过约450℃的温度下在压力下成型或以其它方式成形的玻璃的生产。这种玻璃基本上以氧化物为基准按摩尔％计为至少20％ 但少于50％的P2O5，15-45％的R2O，其中R2O由0-45％Li2O，0-20％Na2O和0-10％K2O组成，0-20％RO，其中RO由0-10 ％MgO，0-15％CaO，0-20％SrO和0-20％BaO，以及在最终玻璃中分析的约0.3-3重量％的F。 对基础组合物的有用添加物包括PbO，La 2 O 3，ZnO和B 2 O 3。