Composite liquid crystalline mixture
    33.
    发明授权
    Composite liquid crystalline mixture 失效
    复合液晶混合物

    公开(公告)号:US07033523B2

    公开(公告)日:2006-04-25

    申请号:US10713785

    申请日:2003-11-14

    IPC分类号: C09K19/52 C09K19/54

    摘要: Described is a composite liquid crystalline mixture having a low refractive index and a chemical reactive power that makes it capable of minimizing an anchoring energy when in contact with silica. This mixture comprises: (a) low ordinary refractive index nematic liquid crystal of a single type or a mixture of low ordinary refractive index nematic liquid crystals of different types; (b) at least one reagent compound capable of reducing the anchoring energy via a chemical shielding process and from which originates a decoupling effect with a glass interface leading to the reduction of the anchoring energy and appropriately orienting a liquid crystal director at this interface; and (c) at least one low refractive index additive having a relatively low viscosity. The above mixture is useful in waveguide tuning applications.

    摘要翻译: 描述了具有低折射率和化学无功功率的复合液晶混合物,使得其能够使与二氧化硅接触时的锚定能最小化。 该混合物包括:(a)单一类型的低折射率向列型液晶或不同类型的低折射率向列型液晶的混合物; (b)至少一种试剂化合物,其能够通过化学屏蔽过程降低锚定能量,并且由玻璃界面引起解耦效应,导致锚定能量的降低并且在该界面处适当地定向液晶指向矢; 和(c)至少一种具有较低粘度的低折射率添加剂。 上述混合物在波导调谐应用中是有用的。

    Composite liquid crystalline mixture
    34.
    发明申请
    Composite liquid crystalline mixture 失效
    复合液晶混合物

    公开(公告)号:US20050104036A1

    公开(公告)日:2005-05-19

    申请号:US10713785

    申请日:2003-11-14

    IPC分类号: C09K19/52 C09K19/54 C09K19/60

    摘要: Described is a composite liquid crystalline mixture having a low refractive index and a chemical reactive power that makes it capable of minimizing an anchoring energy when in contact with silica. This mixture comprises: (a) low ordinary refractive index nematic liquid crystal of a single type or a mixture of low ordinary refractive index nematic liquid crystals of different types; (b) at least one reagent compound capable of reducing the anchoring energy via a chemical shielding process and from which originates a decoupling effect with a glass interface leading to the reduction of the anchoring energy and appropriately orienting a liquid crystal director at this interface; and (c) at least one low refractive index additive having a relatively low viscosity. The above mixture is useful in waveguide tuning applications.

    摘要翻译: 描述了具有低折射率和化学无功功率的复合液晶混合物,使得其能够使与二氧化硅接触时的锚定能最小化。 该混合物包括:(a)单一类型的低折射率向列型液晶或不同类型的低折射率向列型液晶的混合物; (b)至少一种试剂化合物,其能够通过化学屏蔽过程降低锚定能量,并且由玻璃界面引起解耦效应,导致锚定能量的降低并且在该界面处适当地定向液晶指向矢; 和(c)至少一种具有较低粘度的低折射率添加剂。 上述混合物在波导调谐应用中是有用的。

    Optical device and method for the spectrally-designed attenuation of a multi-wavelength light signal
    35.
    发明授权
    Optical device and method for the spectrally-designed attenuation of a multi-wavelength light signal 失效
    用于多波长光信号的光谱设计衰减的光学装置和方法

    公开(公告)号:US07376327B2

    公开(公告)日:2008-05-20

    申请号:US11233514

    申请日:2005-09-21

    IPC分类号: G02B6/00

    CPC分类号: B82Y20/00 B82Y10/00 G02B6/266

    摘要: A device and method for the spectrally-designed and controlled attenuation of a light signal, including an attenuation structure which may be placed in the proximity of a waveguide's core and which comprises a base material system containing non-uniformities having optical properties that are different from those of the host. These non-uniformities may have various natures, geometrical forms and sizes and may be created, doped or otherwise introduced in the base material system to obtain externally controllable optical properties of the whole composite material providing a broadband spectral performance.

    摘要翻译: 一种用于光信号的光谱设计和受控衰减的装置和方法,包括可以放置在波导芯的附近的衰减结构,并且包括具有不均匀性的基本材料系统,所述不均匀性具有不同于 那些主机。 这些不均匀性可以具有各种性质,几何形状和尺寸,并且可以在基材系统中产生,掺杂或以其他方式引入,以获得提供宽带光谱性能的整个复合材料的外部可控的光学性质。

    In-guide control of optical propagation
    36.
    发明授权
    In-guide control of optical propagation 失效
    导光控制光传播

    公开(公告)号:US06859567B2

    公开(公告)日:2005-02-22

    申请号:US10237622

    申请日:2002-09-10

    IPC分类号: G02F1/01 G02F1/1337 G02B1/101

    摘要: We propose a dynamically tunable electro-optic cladding using our proprietary electro-optic material, applied to various circular and planar wave-guides along with specific electrode configuration and excitation electric field format appropriate to that material. Based on the evanescent field coupling phenomena, the proposed device may be used in variable optical attenuators, tunable filters and couplers, etc. Different design of applied electrodes and optical properties of controllable refractive index materials allow polarization dependent or independent, as well as direct or inverse operation regimes of proposed devices.

    摘要翻译: 我们提出了一种使用我们专有的电光材料的动态可调谐电光包层,应用于各种圆形和平面波导以及与该材料相适应的特定电极配置和激励电场格式。 基于ev逝场耦合现象,所提出的器件可用于可变光衰减器,可调谐滤波器和耦合器等。可应用的电极的不同设计和可控折射率材料的光学性质允许偏振依赖或独立,以及直接或 提出的设备的反向运行方式。

    Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals
    37.
    发明授权
    Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals 有权
    用于空间调制电场产生和使用液晶的电光调谐的方法和装置

    公开(公告)号:US08553197B2

    公开(公告)日:2013-10-08

    申请号:US12962635

    申请日:2010-12-07

    IPC分类号: G02F1/13

    摘要: A variable optical device for controlling the propagation of light has a liquid crystal layer (1), electrodes (4) arranged to generate an electric field acting on the liquid crystal layer, and an electric field modulation layer (3,71) arranged between the electrodes and adjacent the liquid crystal layer for spatially modulating said electric field in a manner to control the propagation of light passing through said optical device. The electric field modulation layer has either an optical index of refraction that is essentially spatially uniform, or a polar liquid or gel, or a very high low frequency dielectric constant material having a dielectric constant greater than 20, and preferably greater than 1000. The modulation layer can have a solid body having a first low frequency dielectric constant with a shape selected to impart a desired modulation of the electric field, and a second low frequency dielectric constant material surrounding or adjacent to the solid body such that the solid body and the second material form a layer geometry.

    摘要翻译: 用于控制光的传播的可变光学装置具有液晶层(1),布置成产生作用在液晶层上的电场的电极(4)和布置在液晶层之间的电场调制层(3,71) 电极,并且与液晶层相邻,用于以控制通过所述光学装置的光的传播的方式对所述电场进行空间调制。 电场调制层具有基本上空间均匀的光学折射率或极性液体或凝胶,或者介电常数大于20,优选大于1000的非常高的低频介电常数材料。调制 层可以具有固体,其具有第一低频介电常数,其具有被选择用于赋予电场的所需调制的形状,以及围绕或邻近固体的第二低频介电常数材料,使得固体和第二 材料形成层几何。

    Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals
    38.
    发明授权
    Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals 有权
    用于空间调制电场产生和使用液晶的电光调谐的方法和装置

    公开(公告)号:US07859640B2

    公开(公告)日:2010-12-28

    申请号:US11682266

    申请日:2007-03-05

    IPC分类号: G02F1/13

    摘要: A variable optical device for controlling the propagation of light has a liquid crystal layer (1), electrodes (4) arranged to generate an electric field acting on the liquid crystal layer, and an electric field modulation layer (3,71) arranged between the electrodes and adjacent the liquid crystal layer for spatially modulating said electric field in a manner to control the propagation of light passing through said optical device. The electric field modulation layer has either an optical index of refraction that is essentially spatially uniform, or a polar liquid or gel, or a very high low frequency dielectric constant material having a dielectric constant greater than 20, and preferably greater than 1000. The modulation layer can have a solid body having a first low frequency dielectric constant with a shape selected to impart a desired modulation of the electric field, and a second low frequency dielectric constant material surrounding or adjacent to the solid body such that the solid body and the second material form a layer geometry.

    摘要翻译: 用于控制光的传播的可变光学装置具有液晶层(1),布置成产生作用在液晶层上的电场的电极(4)和布置在液晶层之间的电场调制层(3,71) 电极,并且与液晶层相邻,用于以控制通过所述光学装置的光的传播的方式对所述电场进行空间调制。 电场调制层具有基本上空间均匀的光学折射率或极性液体或凝胶,或者介电常数大于20,优选大于1000的非常高的低频介电常数材料。调制 层可以具有固体,其具有第一低频介电常数,其具有被选择用于赋予电场的所需调制的形状,以及围绕或邻近固体的第二低频介电常数材料,使得固体和第二 材料形成层几何。

    Autofocus system and method
    39.
    发明授权
    Autofocus system and method 有权
    自动对焦系统和方法

    公开(公告)号:US08629932B2

    公开(公告)日:2014-01-14

    申请号:US12542458

    申请日:2009-08-17

    摘要: A camera module and method for focusing a tunable lens configured to continuously vary its optical power in response to a drive signal. A drive circuit generates the drive signal so that the tunable lens performs a continuous scan of its optical power. An image sensor is configured to acquire light images passing through the tunable lens, and to convert the light images to image signals during the continuous scan. A processor is configured to generate focus scores of the acquired light images using the image signals during the continuous scan. The processor is configured to determine from the focus scores a peak focus score achieved or achievable, and to instruct the drive circuit to adjust the drive signal so that the tunable lens settles at a value of the optical power that corresponds to the peak focus score.

    摘要翻译: 一种用于聚焦可调透镜的相机模块和方法,其被配置为响应于驱动信号而连续地改变其光功率。 驱动电路产生驱动信号,使得可调透镜执行其光功率的连续扫描。 图像传感器被配置为获取通过可调透镜的光图像,并且在连续扫描期间将光图像转换成图像信号。 处理器被配置为在连续扫描期间使用图像信号产生所获取的光图像的焦点分数。 处理器被配置为根据焦点得分确定达到或可实现的峰值聚焦分数,并且指示驱动电路调整驱动信号,使得可调透镜以与峰值对焦分数相对应的光功率的值来稳定。

    In Flight Autofocus System And Method
    40.
    发明申请
    In Flight Autofocus System And Method 有权
    在飞行自动对焦系统和方法

    公开(公告)号:US20100039532A1

    公开(公告)日:2010-02-18

    申请号:US12542458

    申请日:2009-08-17

    IPC分类号: H04N5/76 H04N5/232

    摘要: A camera module and method for focusing a tunable lens configured to continuously vary its optical power in response to a drive signal. A drive circuit generates the drive signal so that the tunable lens performs a continuous scan of its optical power. An image sensor is configured to acquire light images passing through the tunable lens, and to convert the light images to image signals during the continuous scan. A processor is configured to generate focus scores of the acquired light images using the image signals during the continuous scan. The processor is configured to determine from the focus scores a peak focus score achieved or achievable, and to instruct the drive circuit to adjust the drive signal so that the tunable lens settles at a value of the optical power that corresponds to the peak focus score.

    摘要翻译: 一种用于聚焦可调透镜的相机模块和方法,其被配置为响应于驱动信号而连续地改变其光功率。 驱动电路产生驱动信号,使得可调透镜执行其光功率的连续扫描。 图像传感器被配置为获取通过可调透镜的光图像,并且在连续扫描期间将光图像转换成图像信号。 处理器被配置为在连续扫描期间使用图像信号产生所获取的光图像的焦点分数。 处理器被配置为根据焦点得分确定达到或可实现的峰值聚焦分数,并且指示驱动电路调整驱动信号,使得可调透镜以与峰值对焦分数相对应的光功率的值来稳定。