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公开(公告)号：EP2321393A1
公开(公告)日：2011-05-18
申请号：EP09781586.4
申请日：2009-08-06
申请人： Varioptic
发明人： MAILLARD, Mathieu , MOREAU, Liana , TUCKER, Christopher J. , WOELFLE-GUPTA, Caroline , DERMODY, Daniel Lawrence
CPC分类号： C11D17/0017 , C11D1/66 , C11D1/72 , G02B3/14 , G02B26/004
摘要： A multi-phase liquid composition comprising a conductive liquid and a non-conductive liquid, said liquids being non miscible, wherein the conductive liquid comprises more than 90% up to 99.9% by weight of a first component having a surface tension above 45 mN/m and comprising water, salt and at least one freezing point lowering agent, and from 0.01% to less than 10% by weight of a second component having a surface tension below 30 mN/m and comprising at least one first compound, wherein said at least one first compound is a non ionic surfactant.
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公开(公告)号：EP1991889B1
公开(公告)日：2010-01-20
申请号：EP07705495.5
申请日：2007-01-31
申请人： Varioptic
IPC分类号： G02B3/14
CPC分类号： G02B3/14
摘要： The present invention relates to the use of a bromine anion in the conductive fluid of an optical electrowetting device, especially a variable focus optical lens driven by electrowetting. The invention also pertains to a multi-phase liquid composition comprising a bromine anion, as well as an optical lens driven by electrowetting comprising the same.
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公开(公告)号：EP2135119A1
公开(公告)日：2009-12-23
申请号：EP08717636.8
申请日：2008-03-11
申请人： Varioptic
CPC分类号： G02B3/14 , G02B26/004 , Y10T428/31504 , Y10T428/31663
摘要： A dielectric coating (210) is provided which has both a dielectric constant greater than 2.5 and a hydrophobic surface. The dielectric coating may be provided by plasma enhanced chemical vapor deposition (PECVD) of organosilane, organosiloxane, organosilazane, organometallic, and/or hydrocarbon precursors. Methods are also provided for altering the contact angle of a liquid (250) in contact with the dielectric coating, e.g., for electrowetting applications.
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公开(公告)号：EP1991890A1
公开(公告)日：2008-11-19
申请号：EP07705496.3
申请日：2007-01-31
申请人： Varioptic
IPC分类号： G02B3/14
CPC分类号： G02B3/14 , G02B26/005
摘要： The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angle (105) of the non-conductive fluid (102) on the substrate (103) in presence of the conductive fluid (101) is comprised between 0° and about 20°. This device may be a variable focus liquid lens, an optical diaphragm, an optical zoom. The invention further relates to an apparatus such as a camera, a cell phone, an endoscope or a dental video camera, comprising said electrowetting device and a driver or electronic means for controlling the lens.
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公开(公告)号：EP1736802A2
公开(公告)日：2006-12-27
申请号：EP06115595.8
申请日：2006-06-16
申请人： Varioptic
发明人： BERGE, Bruno , PESEUX, Jérôme , MAILLARD, Mathieu , CRAEN, Pierre
CPC分类号： G02B3/14 , G02B7/008 , G02B26/005
摘要： The invention relates to a variable-focus lens (60) for focussing light rays in light paths passing through the lens along an optical axis (Δ). The lens comprises an arrangement of first and second immiscible liquids (67, 68) that have different refractive indices and are in contact over a moveable refractive optical interface (69), a volume of gas (72) in contact with one of said liquids, and a retention measure (70, 74) for keeping the volume of gas away from the light paths of the light rays passing through the lens for focussing.
摘要翻译： 本发明涉及一种用于将光线聚焦在沿着光轴（Δ）穿过透镜的光路中的可变焦距透镜（60）。 该透镜包括具有不同折射率并且在可移动折射光学界面（69）上接触的第一和第二不混溶液体（67,68），与一种所述液体接触的一定体积的气体（72） 和保持措施（70,74），用于保持气体的体积远离通过透镜的光线的光路以进行聚焦。
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公开(公告)号：EP1991890B1
公开(公告)日：2013-05-08
申请号：EP07705496.3
申请日：2007-01-31
申请人： Varioptic
IPC分类号： G02B3/14
CPC分类号： G02B3/14 , G02B26/005
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公开(公告)号：EP1736802A3
公开(公告)日：2008-07-23
申请号：EP06115595.8
申请日：2006-06-16
申请人： Varioptic
发明人： BERGE, Bruno , PESEUX, Jérôme , MAILLARD, Mathieu , CRAEN, Pierre
CPC分类号： G02B3/14 , G02B7/008 , G02B26/005
摘要： The invention relates to a variable-focus lens (60) for focussing light rays in light paths passing through the lens along an optical axis (Δ). The lens comprises an arrangement of first and second immiscible liquids (67, 68) that have different refractive indices and are in contact over a moveable refractive optical interface (69), a volume of gas (72) in contact with one of said liquids, and a retention measure (70, 74) for keeping the volume of gas away from the light paths of the light rays passing through the lens for focussing.
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公开(公告)号：EP2223171A1
公开(公告)日：2010-09-01
申请号：EP08860472.3
申请日：2008-12-12
申请人： Varioptic
CPC分类号： G02B3/14 , G02B26/005 , G02B27/646 , H04N5/2254 , H04N5/23248 , H04N5/23258 , H04N5/23287
摘要： A method of controlling a liquid lens in an imaging device, the liquid lens including a liquid-liquid interface between first and second immiscible liquids deformable by electrowetting; a chamber containing the first and second liquids, the first liquid being an insulating liquid and the second liquid being a conducting liquid; and a first electrode in contact with the second liquid and at least one second electrode insulated from the second liquid by an insulating layer, the first and second electrodes being arranged to allow a plurality of voltages levels to be applied between the first and second electrodes to control the curvature of the liquid-liquid interface, the method including: determining motion data representative of a movement of the imaging device; determining focusing data representative of a desired focus of the imaging device; determining the plurality of voltage levels as a function of the motion data, the focusing data and at least one predetermined parameter relating to the liquid lens; and applying the plurality of voltage levels between the first and second electrodes.
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公开(公告)号：EP1991889A1
公开(公告)日：2008-11-19
申请号：EP07705495.5
申请日：2007-01-31
申请人： Varioptic
IPC分类号： G02B3/14
CPC分类号： G02B3/14
摘要： The present invention relates to the use of a bromine anion in the conductive fluid of an optical electrowetting device, especially a variable focus optical lens driven by electrowetting. The invention also pertains to a multi-phase liquid composition comprising a bromine anion, as well as an optical lens driven by electrowetting comprising the same.
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