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公开(公告)号：US20190258084A1
公开(公告)日：2019-08-22
申请号：US15763393
申请日：2016-09-28
申请人： ADLENS LTD
发明人： Robert Edward Stevens , Thomas Jacoby , Derek Paul Forbes Bean , William Guest , Jon Nisper , Tom Worsley , Ashutosh Kumar , Richard Wilhelm Janse Van Rensburg , Peter Lee Crossley , Rita Stella
摘要： A method of assembling an adjustable fluid-filled lens assembly comprising biaxially tensioning an elastomeric membrane to a surface tension of greater than 180 N/m, typically greater than 1000 N/m; thermally conditioning the tensioned membrane, e.g., for one hour at a temperature of about 80° C., to accelerate relaxation of the membrane; mounting the membrane to a peripheral support structure whilst maintaining the tension in the membrane; assembling the mounted membrane with one or more other components to form an enclosure with the membrane forming one wall of the enclosure; and thereafter filling the enclosure with a fluid. The membrane may be formed from an aromatic polyurethane, and the fluid may be a phenylated siloxane. In some embodiments, the membrane is able to hold a substantially constant surface tension of at least 180 N/m for a period of at least 12 months.
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公开(公告)号：US20210026045A1
公开(公告)日：2021-01-28
申请号：US17043207
申请日：2019-03-28
申请人： ADLENS LTD
摘要： A variable focusing power fluid-filled lens or minor assembly (100a) comprising a fluid-filled envelope and a supporting structure (18) therefor; the fluid-filled envelope being constituted by a first wall that is formed of a distensible elastic membrane (15) having an exterior optical surface (151) of variable focusing power, a second wall (183) that is spaced from the first wall on a z-axis which is generally perpendicular to the membrane, and a collapsible peripheral side wall (17) that extends between the first and second walls (15, 183), and being filled with a substantially incompressible fluid (16); a membrane holding structure (14) that is attached to a peripheral edge of membrane for holding the membrane under tension, the membrane holding structure defining a plurality of discrete control points spaced around the peripheral edge of membrane where the position of the peripheral edge of the membrane relative to the second wall on the z-axis is controlled and permitting bending of the peripheral edge of the membrane between the control points in a plane defined by the z-axis and a tangent to the peripheral edge of the membrane; the plurality of control points including a plurality of dynamic actuation points; and an actuation mechanism for displacing the edge of the membrane on the z-axis relative to the second wall at each of the actuation points to control the shape of the membrane; wherein the actuation mechanism comprises a plurality of first cam members (5, 6, 7, 8) that are connected to the membrane holding structure and associated with respective actuation points, a cam belt disposed circumjacent the membrane which comprises a plurality of spaced second cam members (2, 101), each second cam member being engaged with a corresponding one of the first cam members for controlling the position of the edge of the membrane on the z-axis at the respective actuation point, a cam belt support (19) that supports the cam belt for bidirectional rotation around the z-axis relative to the membrane and a coupling (102) for drivably connecting the cam belt to a selectively operable driver (103).
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公开(公告)号：US10823981B2
公开(公告)日：2020-11-03
申请号：US16583127
申请日：2019-09-25
申请人： Adlens Limited
发明人： Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristram Holland , Daniel Paul Rhodes , Dijon Pietropinto , Derek Paul Forbes Bean , Roger Brian Minchin Clarke , Peter Lee Crossley , Richard Leefe Douglas Murray , Edwin James Stone
摘要： A deformable membrane assembly comprises an at least partially flexible fluid-filled envelope, one wall of which is formed by an elastic membrane that is held around its edge by a resiliently bendable supporting ring, a fixed support for the envelope and selectively operable means for causing relative movement between the supporting ring and the support for adjusting the pressure of the fluid in the envelope, thereby to cause the membrane to deform. The bending stiffness of the ring varies round the ring such that upon deformation of the membrane the ring bends variably to control the shape of the membrane to a predefined form. The moving means comprise a plurality of ring-engaging members that are arranged to apply a force to the ring at spaced control points. There are at least three control points, and there is a control point at or proximate each point on the ring where the profile of the ring that is needed to produce the predefined form upon deformation of the membrane exhibits a turning point in the direction of the force applied at the control point between two adjacent points where the profile of the ring exhibits an inflection point or a turning point in the opposite direction.
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公开(公告)号：US20150309334A1
公开(公告)日：2015-10-29
申请号：US14388741
申请日：2012-06-20
申请人： Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristam Holland , Daniel Paul Rhodes , Dijon Pietropinto , Derek Paul Forbes Bean , Roger Brian Minchin Clarke , Peter Lee Crossley , Richard Leefe Douglas Murray , Edwin James Stone
发明人： Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristam Holland , Daniel Paul Rhodes , Dijon Pietropinto , Derek Paul Forbes Bean , Roger Brian Minchin Clarke , Peter Lee Crossley , Richard Leefe Douglas Murray , Edwin James Stone
IPC分类号： G02C7/08
摘要： A deformable membrane assembly comprises an at least partially flexible fluid-filled envelope, one wall of which is formed by an elastic membrane that is held around its edge by a resiliently bendable supporting ring, a fixed support for the envelope and selectively operable means for causing relative movement between the supporting ring and the support for adjusting the pressure of the fluid in the envelope, thereby to cause the membrane to deform. The bending stiffness of the ring varies round the ring such that upon deformation of the membrane the ring bends variably to control the shape of the membrane to a predefined form. The moving means comprise a plurality of ring-engaging members that are arranged to apply a force to the ring at spaced control points. There are at least three control points, and there is a control point at or proximate each point on the ring where the profile of the ring that is needed to produce the predefined form upon deformation of the membrane exhibits a turning point in the direction of the force applied at the control point between two adjacent points where the profile of the ring exhibits an inflection point or a turning point in the opposite direction.
摘要翻译： 可变形膜组件包括至少部分柔性的流体填充的外壳，其一个壁由弹性膜形成，弹性膜通过弹性弯曲的支撑环围绕其边缘保持，用于封套的固定支撑件和用于引起 支撑环和支撑件之间的相对运动，用于调节外壳中的流体的压力，从而导致膜变形。 环的弯曲刚度在环周围变化，使得在膜的变形时，环可变地弯曲以将膜的形状控制成预定义的形式。 移动装置包括多个环接合构件，其被布置成在间隔的控制点处向环施加力。 存在至少三个控制点，并且在环上的每个点处或附近具有控制点，其中在膜的变形时产生预定义形式所需的环的轮廓在该方向上呈现出转折点 施加在两个相邻点之间的控制点处的力，其中环的轮廓呈现相反方向的拐点或转折点。
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公开(公告)号：US08446677B2
公开(公告)日：2013-05-21
申请号：US12920773
申请日：2009-03-04
申请人： Gregor Storey , William Johnson
发明人： Gregor Storey , William Johnson
摘要： A valve device for a variable lens comprises: an inlet for receiving fluid from a reservoir; an outlet for passing fluid to a lens cavity; and a valve member, the valve member comprising a passageway for fluid communication between the inlet and outlet and a valve for closing the passageway; wherein the valve is actuated by turning the valve member about an axis of rotation and the passageway extends along the valve member in the axial direction.
摘要翻译： 用于可变透镜的阀装置包括：用于从储存器接收流体的入口; 用于将流体传送到透镜腔的出口; 以及阀构件，所述阀构件包括用于入口和出口之间流体连通的通道和用于关闭通道的阀; 其中所述阀通过围绕旋转轴线转动所述阀构件来致动并且所述通道沿着所述阀构件在轴向方向上延伸。
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公开(公告)号：US11194174B2
公开(公告)日：2021-12-07
申请号：US16078137
申请日：2017-02-22
申请人： Adlens LTD
发明人： Robert Edward Stevens , Alex Edginton , Daniel Paul Rhodes , Martyn Francis Kenneally , Simon Peter Horrocks , Benjamin Ian Curnow
摘要： A method of fabricating a lens element for an adjustable power lens of the kind comprising two lens elements that are slidable relative to one other in a direction transverse the optical axis of the lens and have respective lens surfaces that are shaped to act together to form a corrective lens, the power of which varies according to the relative disposition of the two lens elements, the method comprising the steps of forming a lens puck having two opposite faces, which are shaped to form opposite lens surfaces of one of the lens elements of the adjustable power lens, the puck having at least one alignment feature, and thereafter edging the puck to a desired eye shape with reference to the alignment feature.
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公开(公告)号：US20110261466A1
公开(公告)日：2011-10-27
申请号：US12937136
申请日：2009-04-08
申请人： Justin Buch , William Johnson , Miranda Newbery , Andrew Roberston , Richard Taylor , Jonathan White
发明人： Justin Buch , William Johnson , Miranda Newbery , Andrew Roberston , Richard Taylor , Jonathan White
摘要： The invention provides a variable focus lens formed from a ring with a front surface and a rear surface, a flexible membrane is attached to a radially inner part of the front surface, and a front cover is attached to a radially outer part of the front surface, a rear cover is provided on the rear surface of the ring, preferably integral with the ring, so that a variable volume cavity is defined between the flexible membrane, the ring and the rear cover, second flexible membrane can be provided between the ring and the rear cover, where the invention also provides a method of filling a variable focus lens, and an adjustment mechanism for varying the focus of the lens.
摘要翻译： 本发明提供一种由具有前表面和后表面的环形成的可变焦距透镜，柔性膜附接到前表面的径向内部，并且前盖附接到前表面的径向外部部分 在所述环的后表面上设置有后盖，优选地与所述环一体形成，使得在所述柔性膜，所述环和所述后盖之间限定可变容积腔，所述第二柔性膜可以设置在所述环与所述环之间， 后盖，其中本发明还提供了一种填充可变焦距透镜的方法，以及用于改变透镜焦点的调节机构。
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公开(公告)号：US20210333572A1
公开(公告)日：2021-10-28
申请号：US17372300
申请日：2021-07-09
申请人： ADLENS LTD
发明人： Robert Edward STEVENS , Alex Edginton , Daniel Paul Rhodes , Marlyn Francis Kenneally , Simon Peter Horrocks , Benjamin Ian Curnow
摘要： A method of fabricating a lens element for an adjustable power lens of the kind comprising two lens elements that are slidable relative to one other in a direction transverse the optical axis of the lens and have respective lens surfaces that are shaped to act together to form a corrective lens, the power of which varies according to the relative disposition of the two lens elements, the method comprising the steps of forming a lens puck having two opposite faces, which are shaped to form opposite lens surfaces of one of the lens elements of the adjustable power lens, the puck having at least one alignment feature, and thereafter edging the puck to a desired eye shape with reference to the alignment feature.
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公开(公告)号：US20210055574A1
公开(公告)日：2021-02-25
申请号：US17094154
申请日：2020-11-10
申请人： ADLENS LTD
发明人： Robert Edward STEVENS , Thomas Jacoby , Derek Paul Forbes Bean , William Guest , Jon Nisper , Tom Worsley , Ashutosh Kumar , Richard Wilhelm Janse Van Rensburg , Peter Lee Crossley , Rita Stella
摘要： A method of assembling an adjustable fluid-filled lens assembly comprising biaxially tensioning an elastomeric membrane to a surface tension of greater than 180 N/m, typically greater than 1000 N/m; thermally conditioning the tensioned membrane, e.g., for one hour at a temperature of about 80° C., to accelerate relaxation of the membrane; mounting the membrane to a peripheral support structure whilst maintaining the tension in the membrane; assembling the mounted membrane with one or more other components to form an enclosure with the membrane forming one wall of the enclosure; and thereafter filling the enclosure with a fluid. The membrane may be formed from an aromatic polyurethane, and the fluid may be a phenylated siloxane. In some embodiments, the membrane is able to hold a substantially constant surface tension of at least 180 N/m for a period of at least 12 months.
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公开(公告)号：US09709824B2
公开(公告)日：2017-07-18
申请号：US14388741
申请日：2012-06-20
申请人： Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristram Holland , Daniel Paul Rhodes , Dijon Pietropinto , Derek Paul Forbes Bean , Roger Brian Minchin Clarke , Peter Lee Crossley , Richard Leefe Douglas Murray , Edwin James Stone
发明人： Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristram Holland , Daniel Paul Rhodes , Dijon Pietropinto , Derek Paul Forbes Bean , Roger Brian Minchin Clarke , Peter Lee Crossley , Richard Leefe Douglas Murray , Edwin James Stone
摘要： A deformable membrane assembly comprising a fluid-filled envelope, one wall of which is formed by an elastic membrane that is held around its edge by a bendable supporting ring, a support for the envelope and at least three ring-engaging members that are arranged to apply a force to the ring at spaced control points for adjusting the shape of the membrane, with the ring bending to control the shape of the membrane to a predefined form. A control point is provided at or proximate each point on the ring where the profile of the ring that is needed to produce the predefined form of the membrane exhibits a turning point in the direction of the force applied at the control point between two adjacent points where the profile of the ring exhibits an inflection point or a turning point in the opposite direction.
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