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公开(公告)号：US3996627A
公开(公告)日：1976-12-14
申请号：US615276
申请日：1975-09-22
申请人： Emil W. Deeg , Robert E. Graf , David A. Krohn
发明人： Emil W. Deeg , Robert E. Graf , David A. Krohn
IPC分类号： G02B1/00 , A61F2/00 , A61F2/16 , A61L27/00 , A61L27/12 , C03C3/066 , C03C4/00 , C03C4/20 , A61F1/16
CPC分类号： A61L27/12 , A61F2/1613 , C03C3/066 , C03C4/0007 , C03C4/20 , A61F2310/00293 , A61L2430/16 , Y10S501/90
摘要： A chemically durable, inert optical implant lens and glass composition for the manufacture of same.
摘要翻译： 化学耐久的惰性光学植入物镜片和用于制造其的玻璃组合物。
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公开(公告)号：US4042405A
公开(公告)日：1977-08-16
申请号：US668174
申请日：1976-03-18
申请人： David A. Krohn , Robert E. Graf , Emil W. Deeg
发明人： David A. Krohn , Robert E. Graf , Emil W. Deeg
CPC分类号： C03C3/097 , C03C21/00 , Y10T428/315
摘要： An ophthalmic glass lens having a compressively-stressed surface zone after ion exchanging which is at least 120 microns in depth, formed from an alkali metal oxide silicate glass comprising by weight about 4 to about 15 percent sodium oxide and about 3 to about 15 percent potassium oxide. There is a compressively-stressed surface layer having a strength of at least 25,000 psi. The total amount of sodium, potassium and other alkali metal oxides is up to about 20 percent. The total amount of zinc oxide, lanthanum oxide, magnesium oxide, and calcium oxide is about 8 to 15 percent, and there is about 3 to about 15 percent phosphorus pentoxide. An ion exchange process takes place at a temperature either above or below the strain point of conventional ophthalmic crown glass to produce satisfactory physical properties in the ophthalmic glass lens.
摘要翻译： 一种眼用玻璃透镜，其在离子交换之后具有至少120微米深的压应力表面区域，其由碱金属氧化物硅酸盐玻璃形成，所述碱金属氧化物硅酸盐玻璃包含重量约4至约15％的氧化钠和约3至约15％的钾 氧化物。 存在具有至少25,000psi的强度的压缩应力表面层。 钠，钾和其他碱金属氧化物的总量高达约20％。 氧化锌，氧化镧，氧化镁和氧化钙的总量为约8〜15％，并且有约3〜约15％的五氧化二磷。 离子交换过程在高于或低于常规眼用冠状玻璃的应变点的温度下进行，以在眼镜玻璃透镜中产生令人满意的物理性能。
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公开(公告)号：US3997250A
公开(公告)日：1976-12-14
申请号：US592703
申请日：1975-07-02
申请人： David A. Krohn , Robert E. Graf , Emil W. Deeg
发明人： David A. Krohn , Robert E. Graf , Emil W. Deeg
CPC分类号： C03C21/00 , C03C21/002 , C03C3/076 , C03C3/095 , Y10S501/903 , Y10T428/315
摘要： An ophthalmic glass lens having a compressively stressed surface zone after ion exchanging which is at least 60 micrometers in depth can be formed from an alkali metal oxide silicate glass comprising by weight about 4 to about 15 percent sodium oxide, about 3 to about 15 percent potassium oxide provided the total amount of sodium, potassium and other alkali metal oxides is up to about 20 percent and about 3 to about 15 percent lanthanum oxide. The ion exchange process can take place at a temperature either above or below the strain point of conventional ophthalmic crown glass to produce satisfactory physical properties in the ophthalmic glass lens.
摘要翻译： 具有至少60微米深度的离子交换后的压应力表面区域的眼用玻璃透镜可以由碱金属氧化物硅酸盐玻璃形成，其包含重量约4至约15％的氧化钠，约3至约15％的钾 氧化物提供钠，钾和其他碱金属氧化物的总量高达约20％和约3至约15％的氧化镧。 离子交换过程可以在高于或低于常规眼用冠状玻璃的应变点的温度下进行，以在眼镜玻璃透镜中产生令人满意的物理性质。
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公开(公告)号：US4012131A
公开(公告)日：1977-03-15
申请号：US606033
申请日：1975-08-20
申请人： David A. Krohn , Emil W. Deeg , Robert E. Graf
发明人： David A. Krohn , Emil W. Deeg , Robert E. Graf
CPC分类号： C03C21/002 , C03C3/078 , C03C3/085 , C03C3/091 , Y10S501/903
摘要： An ophthalmic glass lens can be prepared by exposing an alkali metal silicate glass to an ion exchange process in which the glass is chemically strengthened by an exchange of potassium ions for sodium ions in the surface layer of the lens at a temperature either above or below the strain point of the glass. The glasses prepared are essentially free of alumina, have adequate strength and substantially increased depth of pentration of the neutral zone even when up to about 6 percent lime is utilized in the preparation of the glass. The effect of lime as a diffusion-retarding agent during the ion exchange process can be overcome (1) by use of an appropriate amount of zinc or magnesium oxide or mixtures thereof so as to maintain an adequate rate of diffusion during ion exchange or (2) by preparation of the glass essentially free of alumina.
摘要翻译： 眼科玻璃透镜可以通过将碱金属硅酸盐玻璃暴露于离子交换过程来制备，其中玻璃通过在透镜的表面层中的钠离子的钾离子交换在高于或低于 玻璃应变点。 所制备的玻璃基本上不含氧化铝，具有足够的强度和显着增加的中性层的渗透深度，即使在制备玻璃时使用高达约6％的石灰。 在离子交换过程中石灰作为扩散阻滞剂的作用可以克服（1）通过使用适量的锌或氧化镁或其混合物，以便在离子交换过程中保持足够的扩散速率（2 ），通过制备基本上不含氧化铝的玻璃。
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公开(公告)号：US3935020A
公开(公告)日：1976-01-27
申请号：US463490
申请日：1974-04-24
申请人： Emil W. Deeg , David A. Krohn , Robert E. Graf
发明人： Emil W. Deeg , David A. Krohn , Robert E. Graf
摘要： Faraday rotation glasses exhibiting a high Verdet constant and a low susceptability toward devitrification are formed by introducing a high quantity of rare earth oxides into a borate glass base. The glasses can be melted under standard environmental conditions and may be made on a large scale.
摘要翻译： 通过将大量稀土氧化物引入到硼酸盐玻璃基底中，形成表现出高Verdet常数和低失透性的法拉第旋转玻璃。 玻璃可以在标准环境条件下熔化，可以大规模制造。
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公开(公告)号：US3997249A
公开(公告)日：1976-12-14
申请号：US625963
申请日：1975-10-28
申请人： David A. Krohn , Robert E. Graf , Emil W. Deeg
发明人： David A. Krohn , Robert E. Graf , Emil W. Deeg
CPC分类号： C03C21/00 , C03C3/076 , C03C3/095 , G02C7/06 , Y10S501/903 , Y10T428/315
摘要： There is disclosed an ion exchange-strengthened ophthalmic segment glass suitable for the fabrication of fused bifocal and trifocal ophthalmic lenses. More particularly, there is disclosed a lanthanum-silicate based ophthalmic segment glass having indices of refraction of about 1.57 to about 1.65 which is suitable for chemical ion exchange strengthening so as to develop a compressively-stressed ion-exchanged surface layer having a depth of at least 60 micrometers.
摘要翻译： 公开了一种适用于制造融合的双焦点和三焦点眼科镜片的离子交换强化眼科部分玻璃。 更具体地，公开了一种适用于化学离子交换强化的折射率为约1.57至约1.65的镧硅酸盐基眼镜片玻璃，以便开发出具有深度为的深度的压缩应力离子交换表面层 至少60微米。
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公开(公告)号：US4101302A
公开(公告)日：1978-07-18
申请号：US789585
申请日：1977-04-21
申请人： David A. Krohn , Emil W. Deeg
发明人： David A. Krohn , Emil W. Deeg
CPC分类号： C03C4/06
摘要： The invention achieves local variation, or a continuous gradation, in photochromic or phototropic properties across the face of glass lenses and lens blanks, especially those of ophthalmic quality. The lenses and lens blanks contain all those ingredients required to produce photochromic or phototropic behavior. They are exposed to a locally variable temperature field or environment, in such manner as to, in at least one portion of the lens or lens blank cause the temperature therein to exceed the strain point but not the softening point of the glass. In other portions of the lens or lens blank the temperature is below the strain point, thus causing development of phototropic or photochromic behavior only in those portions of the lens or lens blank exposed to the temperatures above the strain point.
摘要翻译： 本发明实现了玻璃透镜和透镜毛坯的光学变色或光变性质的局部变化或连续的渐变，特别是眼睛质量的变化。 镜片和镜片毛坯包含产生光致变色或光变性能所需的所有成分。 它们以局部可变的温度场或环境暴露，使得在透镜或透镜坯料的至少一部分中使其中的温度超过应变点而不是玻璃的软化点。 在透镜或透镜毛坯的其他部分，温度低于应变点，因此仅在透镜或透镜毛坯暴露于高于应变点的温度的部分中产生光变色或光致变色行为。
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公开(公告)号：US4076395A
公开(公告)日：1978-02-28
申请号：US668172
申请日：1976-03-18
申请人： Emil W. Deeg , David A. Krohn
发明人： Emil W. Deeg , David A. Krohn
CPC分类号： C03C4/06 , G02C7/102 , Y10S501/903
摘要： Glass lenses, or lens blanks, containing all the ingredients necessary to produce phototropic, or photochromic behavior, are treated in a conventional production furnace to produce a locally variable heat treatment, wherein at least one portion thereof is raised to a temperature exceeding the glass strain point but not the softening point, and other portions are heated to variable temperatures decreasing from the strain point. The treatment causes development of phototropic, or photochromic, behavior only in those portions of the lenses, or lens blanks, exposed to the temperature above the strain point. The lenses resulting are characterized by trichromatic coefficients, x=0.310 and y=0.321, in the unactivated state and x=0.314 and y=0.319, in an activated state.
摘要翻译： 含有产生光变色或光致变色行为所需的所有成分的玻璃透镜或镜片坯料在常规生产炉中进行处理以产生局部可变热处理，其中至少一部分升高至超过玻璃应变的温度 而不是软化点，其他部分被加热到从应变点降低的可变温度。 该处理导致仅在暴露于应变点以上的温度的透镜或透镜毛坯的那些部分中产生光致变色或光致变色的行为。 所产生的透镜的特征在于处于未激活状态的x = 0.310和y = 0.321，在激活状态下x = 0.314和y = 0.319的三色系数。
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公开(公告)号：US4080051A
公开(公告)日：1978-03-21
申请号：US668173
申请日：1976-03-18
申请人： David A. Krohn , Emil W. Deeg
发明人： David A. Krohn , Emil W. Deeg
CPC分类号： C03C4/06 , G02C7/102 , Y10S501/903
摘要： Glass lenses, or lens blanks, containing all the ingredients necessary to produce phototropic, or photochromic, behavior, are treated in a conventional production furnace to produce a locally variable heat treatment, wherein at least one portion thereof is raised to a temperature exceeding the glass strain point but not the softening point, and other portions are heated to variable temperature decreasing from the strain point. The treatment causes development of phototropic, or photochromic, behavior only in those portions of the lenses, or lens blanks, exposed to the temperature above the strain point. The lenses resulting are characterized by trichromatic coefficients, x=0.306 and y=0.307, in the unactivated state and x=0.324 and y=0.321, in an activated state and including a small but effective quantity of cobalt oxide.
摘要翻译： 含有产生光变色或光致变色行为所必需的所有成分的玻璃透镜或镜片坯料在常规生产炉中进行处理以产生局部可变的热处理，其中至少一部分升高至超过玻璃的温度 应变点而不是软化点，其他部分被加热到从应变点降低的可变温度。 该处理导致仅在暴露于应变点以上的温度的透镜或透镜毛坯的那些部分中产生光致变色或光致变色的行为。 所产生的透镜的特征在于处于未激活状态的x = 0.306和y = 0.307的三色系数，x = 0.324和y = 0.321，并且包括小但有效量的氧化钴。
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公开(公告)号：US4036624A
公开(公告)日：1977-07-19
申请号：US668175
申请日：1976-03-18
申请人： David A. Krohn , Emil W. Deeg
发明人： David A. Krohn , Emil W. Deeg
CPC分类号： C03C4/06
摘要： The invention achieves local variation, or a continuous gradation, in photochromic or phototropic properties across the face of glass lenses and lens blanks, especially those of ophthalmic quality. The lenses and lens blanks contain all those ingredients required to produce photochromic or phototropic behavior. They are exposed to a locally variable temperature field or environment, in such manner as to, in at least one portion of the lens or lens blank cause the temperature therein to exceed the strain point but not the softening point of the glass. In other portions of the lens or lens blank the temperature is below the strain point, thus causing development of phototropic or photochromic behavior only in those portions of the lens or lens blank exposed to the temperatures above the strain point.
摘要翻译： 本发明实现了玻璃透镜和透镜毛坯的光学变色或光变性质的局部变化或连续的渐变，特别是眼睛质量的变化。 镜片和镜片毛坯包含产生光致变色或光变性能所需的所有成分。 它们以局部可变的温度场或环境暴露，使得在透镜或透镜坯料的至少一部分中使其中的温度超过应变点而不是玻璃的软化点。 在透镜或透镜毛坯的其他部分，温度低于应变点，因此仅在透镜或透镜毛坯暴露于高于应变点的温度的那些部分中产生光变色或光致变色行为。
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