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    • 55. 发明申请
    • Liquid-Based Optical Device, Method for Controlling Such a Device and Electronic Device
    • 液体光学装置,这种装置和电子装置的控制方法
    • US20080095498A1
    • 2008-04-24
    • US11572641
    • 2005-07-28
    • Stein KuiperBernardus H.W. Hendriks
    • Stein KuiperBernardus H.W. Hendriks
    • G02B6/26
    • G02B3/14G02B26/005
    • The present invention discloses an optical device comprising a container having an inner wall, said container enclosing a first liquid (A) and an electrically susceptible second liquid (B), said liquids (A; B) being immiscible and being in contact with each other via an interface (14), said interface (14) having a contact angle with the inner wall; and an electrode arrangement (2; 12) for controlling the shape of the interface (14) by means of a voltage; the optical device having an operational range in between a first value of the contact angle and a second value of the contact angle, the first value being in a range of 50-110° and the second value being in a range of 70°-130°, the second value being larger than the first value. It has been discovered that the response speed of the interface (14) to a change in position is a function of the contact angle (θ), with a response speed reaching a maximum value around (θ)=90° and at least 75% of this maximum value in the given interval. Consequently, an optical device having advantageous response characteristics is obtained.
    • 本发明公开了一种光学装置,包括具有内壁的容器,所述容器包围第一液体(A)和电敏感的第二液体(B),所述液体(A; B)彼此不混溶并彼此接触 通过接口(14),所述接口(14)与内壁具有接触角; 和用于通过电压控制接口(14)的形状的电极装置(2; 12); 所述光学装置的操作范围在所述接触角的第一值和所述接触角的第二值之间,所述第一值在50-110°的范围内,所述第二值在70°-130的范围内 °,第二个值大于第一个值。 已经发现,接口(14)对位置变化的响应速度是接触角(θ)的函数,响应速度达到(θ)= 90°附近的最大值和至少75% 在给定间隔内的最大值。 因此,获得了具有有利响应特性的光学装置。
    • 57. 发明申请
    • Liquid-Based Optical Device, Method For controlling Such A Device And Electronic Device
    • 液体光学装置,用于控制这种装置和电子装置的方法
    • US20070279757A1
    • 2007-12-06
    • US11568123
    • 2005-04-22
    • Christina RendersStein KuiperBernardus HendriksIvon HelwegenMarco Van As
    • Christina RendersStein KuiperBernardus HendriksIvon HelwegenMarco Van As
    • G02B1/06
    • G02B3/14G02B26/005
    • The present invention discloses an optical device comprising a container enclosing an insulating liquid (A) and an electrically susceptible liquid (B), the insulating liquid (A) and the electrically susceptible liquid (B) being immiscible and being in contact with each other via an interface (14), at least one of the liquids (A; B) being at least partially placed in a light path through the container. The optical device further comprises heating means (2, 12, 20) that preferably are responsive to a temperature sensor (30) for heating the insulating liquid (A) and the electrically susceptible liquid (B). Consequently, an optical device is obtained in which the influence of the temperature dependence of the physical properties of the insulating liquid (A) and the electrically susceptible liquid (B) on the behaviour of the optical device is reduced, thus yielding an optical device with improved optical characteristics at low temperatures.
    • 本发明公开了一种光学装置,其包括容纳绝缘液体(A)和电敏感液体(B)的容器,所述绝缘液体(A)和所述电敏液体(B)不混溶并且彼此接触通过 界面(14),至少一个液体(A; B)至少部分地放置在通过容器的光路中。 光学装置还包括加热装置(2,12,20),其优选地响应于用于加热绝缘液体(A)和电敏感液体(B)的温度传感器(30)。 因此,获得了其中绝缘液体(A)和电敏液体(B)的物理性质对光学器件的行为的温度依赖性的影响降低的光学器件,从而产生具有 改善低温下的光学特性。
    • 59. 发明申请
    • GHOST IMAGE ELIMINATION IN AN IMAGE SENSOR EMPLOYING A VARIABLE FOCUS LENS
    • 使用可变焦镜头的图像传感器中的GHOST图像消除
    • US20070217021A1
    • 2007-09-20
    • US10599466
    • 2005-03-31
    • Bernardus HendriksMarco Van AsStein Kuiper
    • Bernardus HendriksMarco Van AsStein Kuiper
    • G02B3/12
    • G02B27/0018G02B3/14G02B26/005
    • In an image sensor incorporating a variable focus lens of the electrowetting type, means are provided for reducing or substantially eliminating the occurrence of ghost images. A variable focus lens of the above-mentioned type comprises a housing (5) provided with a first fluid (A) and an axially displaced second fluid (B), the two fluids being non-miscible, in contact over a meniscus (14) and having different indices of refraction. First and second electrodes (2,12) are provided and the shape of the meniscus (14) is controllable in dependence on the application of a voltage between the first and second electrodes (2,12). Various methods of reducing or substantially eliminating the occurrence of ghost images are prepared, including the alteration of the optical properties of an inner and/or outer wall of the housing (5), to reduce the reflectivity thereof, provision of means in the image sensor to intercept ghosting and appropriate selection of the material or combination of materials of which the housing (5) is formed.
    • 在包含电润湿型可变焦距透镜的图像传感器中,提供用于减少或基本上消除重影图像的发生的装置。 上述类型的可变焦距透镜包括设置有第一流体(A)和轴向移动的第二流体(B)的壳体(5),两个流体不可混溶,在弯月面(14)上接触, 并具有不同的折射率。 设置第一和第二电极(2,12),并且根据第一和第二电极(2,12)之间的电压的施加,弯液面(14)的形状是可控的。 制备减少或基本上消除重影图像发生的各种方法,包括改变壳体(5)的内壁和/或外壁的光学特性,以减小其反射率,在图像传感器中提供装置 以拦截形成壳体(5)的材料或材料组合的重影和适当选择。