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    Lens blanks and method of making a lens therefrom
    4.
    发明授权
    Lens blanks and method of making a lens therefrom 失效
    透镜毛坯及其制造方法

    公开(公告)号：US6074579A

    公开(公告)日：2000-06-13

    申请号：US103117

    申请日：1998-06-23

    Applicant: Martin Greshes

    Inventor： Martin Greshes

    IPC: B29C35/00 ,  B29C43/52 ,  B29D11/00

    CPC classification number: B29D11/00192 ,  B29C43/52 ,  B29D11/00009 ,  B29D11/00201 ,  B29D11/00211 ,  B29D11/00413 ,  B29C35/00 ,  B29L2011/0033

    Abstract: A method of manufacturing a prescription lens, for eyeglasses on site by compression molding, in a pair of upper and lower molds having a mold surfaces from a thermoplastic preformed lens blank having opposite surfaces and a periphery, comprising the steps of: preheating a preform blank at a first temperature and preheating the upper and lower molds to a second higher temperature; positioning the preheated preform between the upper and lower preheated molds such that the preform makes a single point or line contact with each of the mold surfaces; initially compressing the preformed at a first fixed rate of speed regardless of pressure exerted on the preform, with the preform being compressed to about 4 mm of a predetermined lens thickness desired for the prescription lens; finally compressing the preform to a substantially finished prescription lens at a second fixed rate of speed substantially higher than the first fixed rate of speed regardless of pressure exerted on the preform while substantially maintaining the predetermined temperature, and shutting off the heating to the molds, and stopping travel of the molds with respect to each other upon reaching the predetermined lens thickness; and cooling the molds to another, but lower predetermined temperature; and thereafter opening the molds so as to remove the finished prescription lens.

    Abstract translation: 一种制造处方镜片的方法，用于通过压缩成型在现场的眼镜，在具有相对表面和周边的热塑性预成型镜片坯料具有模具表面的一对上模具和下模具中，包括以下步骤：预热坯料坯料 在第一温度下并将上模和下模预热至第二较高温度; 将预热的预成型件定位在上部和下部预热模具之间，使得预成型件与每个模具表面形成单点或线接触; 初始压缩以第一固定速度预先形成的预制件，而不管施加在预成型件上的压力如何，预制件被压缩到处方镜片所需的预定镜片厚度的约4mm; 最终以基本上保持预定温度的方式以基本保持预定温度的压力，而不管施加在预成型体上的压力如何，以基本上高于第一固定速度的速度的第二固定速率将预型件压缩到基本上成品的处方透镜，并且关闭对模具的加热，以及 在达到预定透镜厚度时停止模具相对于彼此的移动; 并将模具冷却到另一个，但是降低预定温度; 然后打开模具以移除最终的处方透镜。

    Use of a super-cooled fluid in the manufacture of contact lenses
    5.
    发明申请
    Use of a super-cooled fluid in the manufacture of contact lenses 审中-公开
    使用超冷却液制造隐形眼镜

    公开(公告)号：US20070132119A1

    公开(公告)日：2007-06-14

    申请号：US11598356

    申请日：2006-11-13

    Applicant: Sanjay Rastogi ,  Gary Friends ,  Mahendra Nandu

    Inventor： Sanjay Rastogi ,  Gary Friends ,  Mahendra Nandu

    IPC: B29D11/00

    CPC classification number: B29D11/00201 ,  B29C37/0003 ,  B29L2011/0041

    Abstract: The present invention includes without limitation a process for separating a hydrogel contact lens from at least one mold half selected from the group comprising the anterior half and the posterior half of a contact lens. The process comprising the step of contacting either the contact lens or the one half with a maximum of about 1000 μl of a super-cooled fluid to create a temperature differential between the contact lens and the one half.

    Abstract translation: 本发明包括但不限于将水凝胶隐形眼镜从至少一个半隐形眼镜的前半部和后半部分组成的组中分离出来的方法。 该方法包括将隐形眼镜或一半与最大约1000微米的超冷却流体接触以产生隐形眼镜与一半之间的温度差的步骤。

    Apparatus for assembling a lens-forming device
    6.
    发明授权
    Apparatus for assembling a lens-forming device 失效
    用于组装透镜形成装置的装置

    公开(公告)号：US6082987A

    公开(公告)日：2000-07-04

    申请号：US26312

    申请日：1998-02-19

    Applicant: Kai C. Su ,  Jack C. White

    Inventor： Kai C. Su ,  Jack C. White

    IPC: B23P19/02 ,  B23P21/00 ,  B29C31/00 ,  B29C33/00 ,  B29C33/30 ,  B29C39/24 ,  B29C39/26 ,  B29C39/36 ,  B29D11/00

    CPC classification number: B29D11/00538 ,  B29C31/006 ,  B29C33/0038 ,  B29C33/305 ,  B29C33/308 ,  B29C39/24 ,  B29D11/00192 ,  B29D11/00201 ,  B29D11/00317 ,  B29D11/00413 ,  B29D11/00423 ,  B29D11/00432 ,  B29D11/005 ,  B29D11/00528 ,  Y10S425/044 ,  Y10S425/201 ,  Y10S425/808

    Abstract: An apparatus and method for assembling a lens-forming structure, the structure having a front mold, a rear mold, and a gasket defining an axially extending bore, including a collet for supporting the gasket so that at least one of the front mold or the rear mold are insertable into the bore thereof, a robotic arm for inserting the front mold into the bore of the gasket, and a piston for inserting the rear mold into the bore of the gasket. The piston axially moves within the bore of the gasket a selected one of the front mold or the rear mold relative to the other mold to a desired one of a plurality of axial separation distances between the molds. Alternatively, the robotic arm can move the selected mold relative to the other mold.

    Abstract translation: 一种用于组装透镜形成结构的装置和方法，所述结构具有前模具，后模具和限定轴向延伸的孔的垫圈，所述垫圈包括用于支撑垫圈的夹头，使得前模具或 后模具可插入其孔中，用于将前模具插入垫圈的孔中的机器人臂以及用于将后模插入垫圈的孔中的活塞。 活塞在密封件的孔内轴向地相对于另一个模具轴向移动到前模具或后模具中的所选择的模具中，以达到模具之间的多个轴向间隔距离中的期望的一个。 或者，机器人臂可以相对于另一个模具移动所选择的模具。

    Gasket for lens making
    7.
    发明授权
    Gasket for lens making 失效
    镜片制造用垫片

    公开(公告)号：US06068464A

    公开(公告)日：2000-05-30

    申请号：US25903

    申请日：1998-02-19

    Applicant: Kai C. Su ,  Jack C. White

    Inventor： Kai C. Su ,  Jack C. White

    IPC: B23P19/02 ,  B23P21/00 ,  B29C31/00 ,  B29C33/00 ,  B29C33/30 ,  B29C39/24 ,  B29C39/26 ,  B29C39/36 ,  B29D11/00

    CPC classification number: B29D11/00538 ,  B29C31/006 ,  B29C33/0038 ,  B29C33/305 ,  B29C33/308 ,  B29C39/24 ,  B29D11/00192 ,  B29D11/00201 ,  B29D11/00317 ,  B29D11/00413 ,  B29D11/00423 ,  B29D11/00432 ,  B29D11/005 ,  B29D11/00528 ,  Y10S425/044 ,  Y10S425/201 ,  Y10S425/808

    Abstract: A gasket defining an axially extending bore therethrough, a front mold having a an edge circumscribing the front mold, wherein the edge is of a size to be complementarily received within at least a portion of the bore of the gasket so that the edge and the bore form a seal therebetween, and a rear mold having a rim circumscribing the rear mold, wherein the rim is sized to be complementarily received within at least a portion of the bore so that the rim and the bore form a seal therebetween. When the front mold and the rear mold are both disposed within the bore of the gasket, a volume is formed between the back surface of the front mold and the front surface of the rear mold and the interior surface of the gasket. A selected one of the front mold or the rear mold is axially and slidably movable within the bore relative to the other mold disposed within the bore to a desired one of a plurality of axial separation distances between the molds, whereby the volume is different for each separation distance. The different volumes correspond to different lens powers, so that the gasket of the present invention can form different lenses.

    Abstract translation: 垫圈，其限定穿过其中的轴向延伸的孔，前模具具有围绕前模的边缘，其中所述边缘具有互补地容纳在所述垫圈的所述孔的至少一部分内的尺寸，使得所述边缘和所述孔 在其间形成密封件，以及具有围绕后模具的边缘的后模具，其中所述边缘的尺寸设计成互补地容纳在所述孔的至少一部分内，使得所述边缘和所述孔在其间形成密封。 当前模具和后模具都设置在垫圈的孔内时，在前模具的后表面和后模具的前表面与垫圈的内表面之间形成一体积。 前模具或后模具中的所选择的一个可以在孔内相对于设置在孔内的另一模具轴向和可滑动地移动到模具之间的多个轴向间隔距离中的期望的一个，由此每个模具的体积是不同的 分离距离。 不同的体积对应于不同的透镜光焦度，使得本发明的垫圈可以形成不同的透镜。

    Method for making lenses
    8.
    发明授权
    Method for making lenses 失效
    镜片制作方法

    公开(公告)号：US5368790A

    公开(公告)日：1994-11-29

    申请号：US932088

    申请日：1992-08-19

    Applicant: Martin Greshes

    Inventor： Martin Greshes

    IPC: B29C35/00 ,  B29C43/52 ,  B29D11/00

    CPC classification number: B29C43/021 ,  B29C43/52 ,  B29D11/00192 ,  B29D11/00201 ,  B29D11/00211 ,  B29D11/00413 ,  B29C2043/3618 ,  B29C35/00 ,  B29L2011/0016 ,  B29L2011/0033 ,  Y10S425/808

    Abstract: A method for forming a preform mass of thermoplastic material into a lens without the formation of air bubbles or the entrapment of air pockets in the finished lens includes softening the preform mass under a predetermined pressure and temperature and continuing to apply the predetermined pressure while increasing the temperature until the mass has been compressed between two molds into the shape of the lens.

    Abstract translation: 一种用于将热塑性材料的预成型坯坯料形成到透镜中而不形成气泡或者在成品透镜中夹带气泡的方法包括在预定压力和温度下软化预成型坯坯料并继续施加预定压力，同时增加 直到质量已经在两个模具之间被压缩成透镜的形状。

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