Colorless ophthalmic glasses

Details Colorless ophthalmic glasses Colorless ophthalmic glasses

1995-06-05

1996-06-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 56, 501 59, 501 70, 501903, 501 67, C03C 3095, C03C 3093, C03C 400

Patent

active

055255531

ABSTRACT:
This invention is directed to the production of glasses useful for ophthalmic applications which exhibit excellent resistance to the development of coloration upon being exposed to x-radiation and excellent resistance to the development of solarization. The glass compositions are essentially free of lead and consist essentially, in weight percent, of

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patent: 5320987 (1994-06-01), Senoo et al.
patent: 5434111 (1995-07-01), Clement et al.

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