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120 条记录 (耗时 0.039 秒)

    Progressive addition lenses
    62.
    发明授权
    Progressive addition lenses 有权
    渐进镜片

    公开(公告)号：US6086203A

    公开(公告)日：2000-07-11

    申请号：US146888

    申请日：1998-09-03

    申请人： Ronald D. Blum ,  Russell A. Chipman ,  Amitava Gupta ,  Edgar Vithal Menezes

    发明人： Ronald D. Blum ,  Russell A. Chipman ,  Amitava Gupta ,  Edgar Vithal Menezes

    IPC分类号： G02C7/06 ,  A61F2/16 ,  G02B3/00 ,  G02C7/00 ,  G02C7/02

    CPC分类号： G02C7/061

    摘要： The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to conventional progressive addition lenses. This result is achieved by combining a progressive addition surface with a first dioptric add power with at least one optical element that provides additional dioptric add power to the lens.

    摘要翻译： 本发明提供了渐进式附加镜片，其中透镜有意义的散光减小，并且与传统的渐进附加镜片相比，通过中间视觉区域和近视野区域的通道宽度增加。 该结果通过将渐进附加表面与第一屈光增加功率组合到至少一个为透镜提供额外的屈光度增加功率的光学元件来实现。

    Method of machining contact lenses
    63.
    发明授权
    Method of machining contact lenses 失效
    隐形眼镜加工方法

    公开(公告)号：US5805266A

    公开(公告)日：1998-09-08

    申请号：US247199

    申请日：1994-05-20

    申请人： Amitava Gupta ,  Ronald D. Blum

    发明人： Amitava Gupta ,  Ronald D. Blum

    IPC分类号： B29D11/00 ,  G02C7/04 ,  G02C7/02

    CPC分类号： B29D11/00769 ,  B29D11/00086 ,  B29D11/00519 ,  G02C7/021 ,  G02C7/041 ,  G02C7/048 ,  B29L2011/0025 ,  B29L2011/0033 ,  G02C2202/04 ,  G02C2202/20

    摘要： A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An optical feature is also located on a patient's eye. Then, a reference position is located on the surface of the optical preform coincident with the optical feature on the patients eye, when the optical preform is in the resting position. Finally, the optical modification is machined on the optical preform at a location based on the reference position on the optical preform.

    摘要翻译： 一种用于为患者提供隐形眼镜的方法。 根据该方法，选择光学预型件，并且确定光学预制件在患者眼睛上的静止位置。 光学特征也位于病人的眼睛上。 然后，当光学预型件处于静止位置时，参考位置位于与光学预型件重叠的病人眼睛上的光学预制件的表面上。 最后，在基于光学预型件上的参考位置的位置处，在光学预制件上加工光学修改。

    Prismatic intraocular lenses and related method of using such lenses to restore vision in patients with central field loss
    65.
    发明授权
    Prismatic intraocular lenses and related method of using such lenses to restore vision in patients with central field loss 失效
    棱镜型眼内透镜及相关的使用这种镜片的方法可以恢复患有中心性丧失的患者的视力

    公开(公告)号：US5683457A

    公开(公告)日：1997-11-04

    申请号：US647228

    申请日：1996-05-09

    申请人： Amitava Gupta ,  Richard Mackool

    发明人： Amitava Gupta ,  Richard Mackool

    IPC分类号： A61F2/16

    CPC分类号： A61F2/1648 ,  A61F2/1621 ,  A61F2002/1683

    摘要： A pair of intraocular lenses for restoring visual function to a patient with central field loss. The pair of intraocular lenses includes a first lens for implantation into a first eye of the patient to provide vision of targets located at a distance greater than five feet from the first eye and a second lens for implantation into a second eye of the patient to provide vision of targets at a distance less than twelve inches from the second eye. The first and second lenses each include a prismatic wedge for shifting retinal images to a functional portion of a retina of each respective first and second eye.

    摘要翻译： 一种用于恢复具有中心场损失的患者的视觉功能的眼内透镜。 一对眼内透镜包括用于植入患者的第一只眼睛的第一透镜，以提供位于距离第一眼大于五英尺的距离处的目标的视力，以及用于植入患者的第二只眼睛的第二透镜，以提供 距离第二只眼睛小于十二英寸的距离的目标的视力。 第一和第二透镜各自包括用于将视网膜图像移动到每个相应的第一和第二眼睛的视网膜的功能部分的棱镜楔形物。

    Method of manufacturing contact lenses
    66.
    发明授权
    Method of manufacturing contact lenses 失效
    制造隐形眼镜的方法

    公开(公告)号：US5528321A

    公开(公告)日：1996-06-18

    申请号：US247201

    申请日：1994-05-20

    申请人： Ronald D. Blum ,  Amitava Gupta

    发明人： Ronald D. Blum ,  Amitava Gupta

    IPC分类号： B29D11/00 ,  C08L23/20 ,  C08L45/00 ,  G02C7/04

    CPC分类号： B29D11/00519 ,  B29D11/00038 ,  B29D11/00086 ,  B29D11/00769 ,  G02C7/041 ,  G02C7/048 ,  B29L2011/0025 ,  B29L2011/0033 ,  G02C2202/04

    摘要： A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An optical feature is also located on a patient's eye. Then, a reference position is located on the surface of the optical preform coincident with the optical feature on the patients eye, when the optical preform is in the resting position. Finally, the optical modification is provided on the optical preform at a location based on the reference position on the optical preform.

    摘要翻译： 一种用于为患者提供隐形眼镜的方法。 根据该方法，选择光学预型件，并且确定光学预制件在患者眼睛上的静止位置。 光学特征也位于病人的眼睛上。 然后，当光学预型件处于静止位置时，参考位置位于与光学预型件重叠的病人眼睛上的光学预制件的表面上。 最后，在基于光学预型件上的基准位置的位置处在光学预制件上提供光学修改。

    Optical lenses, haptics therefor and optical lens bodies having haptics
    68.
    发明授权
    Optical lenses, haptics therefor and optical lens bodies having haptics 失效
    光学透镜，其触觉件和具有触觉的光学透镜体

    公开(公告)号：US5319023A

    公开(公告)日：1994-06-07

    申请号：US905991

    申请日：1992-06-26

    申请人： Amitava Gupta

    发明人： Amitava Gupta

    IPC分类号： C08F8/00 ,  G02B1/04

    CPC分类号： G02B1/043 ,  C08F8/00

    摘要： Optical lens bodies and haptics therefore are prepared from polymeric materials wherein all surfaces of the materials are substantially biologically inert to occular tissue, all surfaces are substantially free of surface defects when viewed through a 10 power optical microscope, the materials have a contact angle with water of at least 85.degree., a contact angle with glycerol of least 75.degree. and a surface energy less than 30 erg/cm.sup.2.

    摘要翻译： 因此，光学透镜体和触觉体由聚合物材料制成，其中材料的所有表面对于眼组织具有实质上的生物惰性，当通过10倍光学显微镜观察时，所有表面基本上没有表面缺陷，该材料与水接触 至少85°，与甘油的接触角至少为75°，表面能低于30erg / cm2。

    Multifocal optical lens
    69.
    发明授权
    Multifocal optical lens 失效
    多功能光学镜头

    公开(公告)号：US5080472A

    公开(公告)日：1992-01-14

    申请号：US383797

    申请日：1989-07-21

    申请人： Amitava Gupta

    发明人： Amitava Gupta

    IPC分类号： G02C7/04 ,  G02C7/06

    CPC分类号： G02C7/041 ,  G02C7/042 ,  G02C7/044 ,  G02C7/061 ,  G02C2202/12 ,  Y10S359/90

    摘要： A multifocal lens useful as a contact lens or implantable as an intraocular lens which comprises at least 3 zones, the first zone comprising a polymer of a specified refractive index, the second zone comprising a polymer having the same repeating units as the polymer comprising the first zone and having a specified refractive index differing from the refractive index of the polymer comprising the first zone by not more than 0.1 units and by not less than 0.01 units and the third zone between the first and second zones comprising a polymer having the same repeating units as the polymers comprising the first and second zones and having a refractive index continuously variable between that of the polymer comprising the first zone and that of the polymer comprising the second zone, the at least three zones being transparent and having no discontinuities visible to the human eye between the zones.

    摘要翻译： 一种可用作隐形眼镜或作为人工晶状体植入的多焦点透镜，其包括至少3个区域，所述第一区域包含特定折射率的聚合物，所述第二区域包含具有与聚合物相同的重复单元的聚合物，所述聚合物包含第一 并且具有与包含第一区的聚合物的折射率不同的特定折射率不超过0.1个单位且不小于0.01个单位，并且第一和第二区之间的第三区包含具有相同重复单元的聚合物 作为包含第一和第二区的聚合物并且具有在包含第一区的聚合物和包含第二区的聚合物的折射率之间连续变化的折射率，所述至少三个区域是透明的并且没有人类可见的不连续性 区域之间的眼睛。

    Surface passivated intraocular lens
    70.
    发明授权
    Surface passivated intraocular lens 失效
    表面钝化人工晶状体

    公开(公告)号：US4655770A

    公开(公告)日：1987-04-07

    申请号：US741758

    申请日：1985-06-06

    申请人： Amitava Gupta ,  Robert L. Van Osdel

    发明人： Amitava Gupta ,  Robert L. Van Osdel

    IPC分类号： A61L27/16 ,  C08J7/12 ,  A61F2/14

    CPC分类号： C08J7/12 ,  A61F2/16 ,  A61L27/14 ,  A61L27/16 ,  A61L2430/16 ,  C08J2333/12

    摘要： An intraocular lens is treated to form a modified passivated outer surface for reducing or eliminating biological reactions of inflammatory origin when the lens is implanted into an eye. The lens is formed from a conventional lens implant material, such as polymethyl methacrylate (PMMA), which is treated as required to create an outer surface region including a relatively high density of hydroxyl groups. This outer surface region is reacted with a selected fluorocarbon carried in a solution with a primer including bonding agents for bonding the fluorocarbon with respect to the hydroxyl groups, thereby creating a thin, substantially inert or passivated outer surface resistant to irritative reaction with tissue or cells when the lens is implanted into the eye.

    摘要翻译： 处理眼内晶状体以形成经修饰的钝化外表面，用于在将晶状体植入眼中时减少或消除炎性起源的生物反应。 透镜由常规的透镜植入材料形成，例如聚甲基丙烯酸甲酯（PMMA），其根据需要进行处理以产生包括相对高密度羟基的外表面区域。 该外表面区域与在溶液中携带的选择的碳氟化合物反应，其中包含用于将碳氟化合物相对于羟基键合的粘合剂的底漆，从而产生耐薄弱，基本上惰性或钝化的外表面，以抵抗对组织或细胞的刺激反应 当镜片植入眼睛时。