Method of manufacturing progressive ophthalmic lenses

    公开(公告)号:US06685316B2

    公开(公告)日:2004-02-03

    申请号:US10195353

    申请日:2002-07-16

    CPC classification number: G02C7/068 G02C7/027 G02C7/028 G02C7/061

    Abstract: What is described here is a method of manufacturing progressive ophthalmic lenses whereof each is produced in correspondence with the individual data of a specific spectacle wearer, and whereof each presents a first surface having a defined surface power value in the surface apex, and presents a non-spherical second surface (prescription surface) whose surface power varies along a line (referred to as principal line in the following) that follows at least approximately the main line of sight when the view is lowered, such that the ophthalmic lens produces a first effect in a first reference point, which is suitable for viewing in a first distance envisaged for the respective application, and that this effect varies along the principal line by a predetermined value (addition Add) to a second value present in a second reference point, which is suitable for viewing in a second distance envisaged for the respective application, and whose second surface possibly presents a surface astigmatism optionally for partly compensating an ocular astigmatism and/or the astigmatism of oblique bundles. The inventive method excels itself by the following steps of operation: initially, ophthalmic lens blanks (blanks) are produced with a finished first surface in a defined—particularly comparatively narrow—grading of the surface power value, starting out from the individual data, specifically at least the respective required first effect Df the addition Add and possibly the value and the axial position of the ocular astigmatism of the spectacle wearer for whom the respective ophthalmic lens is intended, and on the basis of further design data, a first surface with a defined surface power value D, is selected and the second surface is so computed that the surface power value D2f of the second surface, which is required in the first reference point, is adjusted in correspondence with the respective selected surface power D, of the first surface so that, as a function of the respective design data for one and the same first effect D, and one and the same addition Add and possibly also one and the same value and axial position of the ocular astigmatism, different pairings of first surfaces, which are distinguished from each other at least with respect to the surface power value D1 and of associated second surfaces computed on an individualized basis in each case are achieved.

    X-ray tube
    44.
    发明授权
    X-ray tube 失效
    X光管

    公开(公告)号:US5511104A

    公开(公告)日:1996-04-23

    申请号:US393932

    申请日:1995-02-21

    CPC classification number: H01J35/16 H01J2235/168

    Abstract: An x-ray tube, in addition to an anode and a cathode arrangement, has first and second electrodes that are located in an evacuated housing provided with a beam exit window. The anode and the first electrode are at potentials that are positive in comparison to the potentials of the cathode arrangement and the second electrode. Further, the first and the second electrode are arranged lying opposite one another such that secondary electrons emanating from the anode must pass through the space located between the first and the second electrode in order to proceed to the beam exit window. These secondary electrons are thus substantially all prevented from reaching the beam exit window, thereby avoiding excessive heating of the beam exit window.

    Abstract translation: 除了阳极和阴极装置之外,X射线管具有位于设有光束出射窗的抽真空壳体中的第一和第二电极。 与阴极配置和第二电极的电位相比,阳极和第一电极处于正电位。 此外,第一和第二电极布置成彼此相对,使得从阳极发出的二次电子必须通过位于第一和第二电极之间的空间,以便前进到光束出射窗口。 因此,这些二次电子基本上都被阻止到达光束出射窗口,从而避免光束出射窗的过度加热。

    Planetary gear extruder for the compounding and extrusion of plastic
materials
    45.
    发明授权
    Planetary gear extruder for the compounding and extrusion of plastic materials 失效
    行星齿轮挤出机用于复合和挤出塑料材料

    公开(公告)号:US4889430A

    公开(公告)日:1989-12-26

    申请号:US339664

    申请日:1989-04-18

    Applicant: Werner Mueller

    Inventor: Werner Mueller

    CPC classification number: B29C47/42 B29C47/0009

    Abstract: A planetary gear extruder for the compounding and extrusion of thermoplastic materials, in which an annular groove is formed in the metallic stop ring to receive a ceramic body which is engageable by the forward ends of the planetary spindles in order to reduce friction. A ceramic body may additionally also be arranged in a recess in the end face of each of the planetary spindles, aligned with and adapted to engage the ceramic body mounted in the stop ring. As a result, the coefficients of friction between the stop ring and the end faces of the spindles are reduced considerably, consequently reducing the wear on the planetary spindles themselves and the central spindle.

    Abstract translation: 一种用于热塑性材料的混合和挤出的行星齿轮挤出机,其中在金属制止环中形成环形槽以容纳陶瓷体,该陶瓷体可通过行星主轴的前端接合以减少摩擦。 陶瓷体还可以布置在每个行星主轴的端面中的凹部中,该凹槽与安装在止动环中的陶瓷体对准并适于接合。 结果,止动环与主轴端面之间的摩擦系数显着降低,从而减小了行星主轴本身和中心主轴的磨损。

    Method for manufacturing transparent conductive indium-tin oxide layers
    46.
    发明授权
    Method for manufacturing transparent conductive indium-tin oxide layers 失效
    透明导电铟锡氧化物层的制造方法

    公开(公告)号:US4842705A

    公开(公告)日:1989-06-27

    申请号:US174183

    申请日:1988-03-28

    Applicant: Werner Mueller

    Inventor: Werner Mueller

    Abstract: A method for applying a transparent, conductive indium-tin oxide coating on a substrate of amorphous, hydrogen-containing silicon wherein an unheated substrate of amorphous hydrogen-containing silicon is treated with sources of indium and tin in a first stage while maintaining a low partial pressure of oxygen until a partial coating is built-up, then reducing the oxygen partial pressure in the coating zone in a second stage and continuing the coating until an additional coating thickness is built-up, followed by heating the coated substrate in an oxygen-containing atmosphere at a temperature less than 250.degree. C.

    Abstract translation: 一种在非晶态含氢硅衬底上施加透明导电铟锡氧化物涂层的方法,其中在第一阶段中用铟和锡的源处理非晶态含氢硅的未加热衬底,同时保持低的部分 氧气的压力直到部分涂层积聚,然后在第二阶段中降低涂层区域中的氧分压,并继续涂覆,直到另外的涂层厚度积累,然后在含氧气体中加热涂覆的基底, 在低于250℃的温度下含有气氛

    Circuit arrangement for unilaterally scanning distorted teletype
characters
    47.
    发明授权
    Circuit arrangement for unilaterally scanning distorted teletype characters 失效
    用于单向扫描失真电传字符的电路布置

    公开(公告)号:US4187438A

    公开(公告)日:1980-02-05

    申请号:US857283

    申请日:1977-12-05

    Applicant: Werner Mueller

    Inventor: Werner Mueller

    CPC classification number: H04L7/033 H04L25/06

    Abstract: A circuit for unilaterally scanning teletype characters wherein the characters are supplied to an integrating circuit and to an impulse circuit wherein the impulse circuit can be controlled by the step changes of a character. A comparator circuit receives the output of the integration circuit and assumes a definite condition with each step change through a switch which is controlled by the impulses of the impulse circuit and a reference signal is supplied to the comparator circuit and the reference signal can be adjusted according to the desired delay of the descending or ascending edge of the step changes in the characters.

    Abstract translation: 一种用于单向扫描电传字符的电路,其中字符被提供给积分电路和脉冲电路,其中脉冲电路可以通过字符的阶跃变化来控制。 比较器电路接收积分电路的输出,并通过由脉冲电路的脉冲控制的开关进行每个阶跃变化的确定条件,并且将参考信号提供给比较器电路,并且参考信号可以根据 到字符的阶梯变化的下降或上升沿的期望延迟。

    Method for checking and/or determining user data, a computer program product, and an apparatus
    48.
    发明授权
    Method for checking and/or determining user data, a computer program product, and an apparatus 有权
    用于检查和/或确定用户数据的方法,计算机程序产品和装置

    公开(公告)号:US08506084B2

    公开(公告)日:2013-08-13

    申请号:US12668711

    申请日:2008-07-14

    CPC classification number: G02C7/02 G02C2202/22

    Abstract: The present invention relates in summary to a method for checking and/or determining user data of a spectacle lens user comprising providing subjective data of a spectacle lens user, wherein the subjective data comprise at least subjective refraction data, providing objective refraction data of the spectacle lens user, comparing at least one subset of the subjective refraction data with at least one subset of the objective refraction data and determining a comparison result, matching at least the subset of the subjective refraction data to the objective refraction data on the basis of the comparison result under the assumption that the comparison result fulfills at least one predetermined comparison condition, otherwise maintaining at least the subset of the subjective refraction data and/or providing a message containing the comparison result, and to a further method, a computer program product and two devices for checking and/or determining user data.

    Abstract translation: 本发明总结涉及一种用于检查和/或确定眼镜镜片用户的用户数据的方法,包括提供眼镜镜片用户的主观数据,其中主观数据至少包括主观折射数据,提供眼镜的客观折射数据 将主观折射数据的至少一个子集与客观折射数据的至少一个子集进行比较,并确定比较结果,根据比较将至少主观折射数据的子集与客观折射数据进行匹配 在比较结果满足至少一个预定比较条件,否则至少保持主观折射数据的子集和/或提供包含比较结果的消息的假设下,结果,以及另一种方法,计算机程序产品和两个 用于检查和/或确定用户数据的装置。

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