Control system for electrochromic devices
    121.
    发明授权
    Control system for electrochromic devices 有权
    电致变色器件控制系统

    公开(公告)号:US06940627B2

    公开(公告)日:2005-09-06

    申请号:US10697766

    申请日:2003-10-30

    CPC classification number: G02F1/163 G02F2201/58

    Abstract: A system and method for controlling an electrochromic device is provided. The system comprises a light source that produces an input light signal, and an electrochromic window configured to attenuate the input light signal by a certain amount and transmit a resulting attenuated light signal. An optical detector is configured to detect an optical property of the attenuated light signal, and a power module is connected to the electrochromic window and the detector. The power module generates a pulse-width modulated power signal and inputs the power signal to the electrochromic window. The power signal is modulated by an amount based on the detected optical property of the attenuated light signal. A control circuit for an electrochromic device is also disclosed.

    Abstract translation: 提供了一种用于控制电致变色装置的系统和方法。 该系统包括产生输入光信号的光源和被配置为使输入光信号衰减一定量并传送所得到的衰减光信号的电致变色窗。 光检测器被配置为检测衰减的光信号的光学特性,并且功率模块连接到电致变色窗和检测器。 电源模块产生脉宽调制功率信号,并将电源信号输入到电致变色窗口。 功率信号由基于检测到的衰减光信号的光学特性的量调制。 还公开了一种用于电致变色器件的控制电路。

    Variable optical attenuator having a waveguide and an optically coupled layer with a power monitor
    122.
    发明申请
    Variable optical attenuator having a waveguide and an optically coupled layer with a power monitor 失效
    具有波导的可变光衰减器和具有功率监视器的光耦合层

    公开(公告)号:US20050157983A1

    公开(公告)日:2005-07-21

    申请号:US10761619

    申请日:2004-01-21

    Abstract: The intensity of signals in optical networks can be controlled using a variable optical attenuator (VOA). The present invention is a VOA that is particularly well suited for optical networks, for example to provide channel-by-channel normalization of gain control of wavelength division multiplexed signals. The inventive VOA includes a waveguide having a cladding that includes an electro-optical material and electrodes that produce an electric field within the electro-optical material when a voltage difference is applied to the electrodes. The VOA also includes a layer that is parallel to the core of the waveguide and that optically couples to the core to receive light from the attenuated signal. A power meter receives light from the layer as an indication of the amount of light attenuated from the signal and for controlling the voltage to the electrodes.

    Abstract translation: 可以使用可变光衰减器(VOA)来控制光网络中的信号强度。 本发明是特别适用于光网络的VOA,例如提供波分复用信号的增益控制的逐通道归一化。 本发明的VOA包括具有包层的波导,该包层具有电光材料和当对电极施加电压差时在电光材料内产生电场的电极。 VOA还包括平行于波导的核心并且光耦合到芯以从衰减信号接收光的层。 功率计从该层接收光,作为从信号衰减的光量的指示,并用于控制电极的电压。

    Backlight assembly and display apparatus having the same
    123.
    发明申请
    Backlight assembly and display apparatus having the same 失效
    背光组件及其显示装置

    公开(公告)号:US20050111225A1

    公开(公告)日:2005-05-26

    申请号:US10948535

    申请日:2004-09-22

    CPC classification number: G02F1/133604 G02F2201/58

    Abstract: Backlight assembly and the display device using the same are disclosed. Backlight assembly comprises a container and a detector. The container holds a light and electromagnetic field generating source and a sampling portion for passing the light and/or electromagnetic field. The detector is located on the outer space of the container and has an electromagnetic field reactive sensing unit and a body to support the sensing unit. Therefore, the backlight of the present invention can protect lamp from the successive malfunctioning and prevent fire.

    Abstract translation: 公开了背光组件和使用其的显示装置。 背光组件包括容器和检测器。 容器容纳光和电磁场产生源和用于通过光和/或电磁场的采样部分。 检测器位于容器的外部空间上,并具有电磁场反应检测单元和支撑感测单元的本体。 因此,本发明的背光源可以保护灯不发生连续故障并防止火灾。

    Control system for electrochromic devices

    公开(公告)号:US20050046920A1

    公开(公告)日:2005-03-03

    申请号:US10697766

    申请日:2003-10-30

    CPC classification number: G02F1/163 G02F2201/58

    Abstract: A system and method for controlling an electrochromic device is provided. The system comprises a light source that produces an input light signal, and an electrochromic window configured to attenuate the input light signal by a certain amount and transmit a resulting attenuated light signal. An optical detector is configured to detect an optical property of the attenuated light signal, and a power module is connected to the electrochromic window and the detector. The power module generates a pulse-width modulated power signal and inputs the power signal to the electrochromic window. The power signal is modulated by an amount based on the detected optical property of the attenuated light signal. A control circuit for an electrochromic device is also disclosed.

    Methods and apparatus for implementing transmissive display devices

    公开(公告)号:US20040207786A1

    公开(公告)日:2004-10-21

    申请号:US10870235

    申请日:2004-06-16

    Abstract: Energy efficient transmissive and transreflective display devices are described. Ambient light from a natural or artificial source is used to replace and/or supplement light normally supplied by a backlight. This is done by directing ambient light to the rear of a transmissive display panel. A window, light tunnel, or a reflective surface located in the rear or top of a display device may be used to direct the ambient light to the back of the display panel. A translucent diffuser and/or diffuse reflector are used to diffuse the ambient light to reduce the chance of bright spots appearing on the display. Additional energy efficiency is achieved by using one or more photo-sensors to detect the amount of light, incident on the front and/or rear of a display panel and by automatically adjusting the backlight intensity as a function of photo-sensor output. In this manner, backlight intensity can be minimized while maintaining the viewability of images shown on the display. In such an embodiment, energy savings are achieved as compared to devices which use fixed backlight intensity settings in a variety of light conditions. Control of the power supplied to a display's backlight in accordance with the present invention can reduce electrical energy consumption and prolong the amount of time a portable device can be used before its batteries need to be recharged.

    Polycrystalline germanium-based waveguide detector integrated on a thin silicon-on-insulator (SOI) platform
    128.
    发明申请
    Polycrystalline germanium-based waveguide detector integrated on a thin silicon-on-insulator (SOI) platform 有权
    集成在绝缘体上硅(SOI)平台上的多晶锗基波导检测器

    公开(公告)号:US20040188794A1

    公开(公告)日:2004-09-30

    申请号:US10772724

    申请日:2004-02-05

    Abstract: A photodetector for use with relatively thin (i.e., sub-micron) silicon optical waveguides formed in a silicon-on-insulator (SOI) structure comprises a layer of poly-germanium disposed to couple at least a portion of the optical signal propagating along the silicon optical waveguide. Tight confinement of the optical signal within the waveguide structure allows for efficient evanescent coupling into the poly-germanium detector. The silicon optical waveguide may comprise any desired geometry, with the poly-germanium detector formed to either cover a portion of the waveguide, or be butt-coupled to an end portion of the waveguide. When covering a portion of the waveguide, poly-germanium detector may comprise a nullwrap-aroundnull geometry to cover the side and top surfaces of the optical waveguide, with electrical contacts formed at opposing ends of the detector.

    Abstract translation: 用于在绝缘体上硅(SOI)结构中形成的相对较薄的(即亚微米)硅光波导的光电检测器包括一层聚锗,其设置成耦合沿着所述光纤传播的光信号的至少一部分 硅光波导。 波导结构内的光信号的紧密限制允许有效的ev逝耦合到聚锗检测器中。 硅光波导可以包括任何期望的几何形状,其中聚锗检测器形成为覆盖波导的一部分,或者与波导的端部对接。 当覆盖波导的一部分时,聚锗检测器可以包括覆盖光波导的侧表面和顶表面的“环绕”几何形状,其中电触点形成在检测器的相对端。

    Vehicular head up display
    130.
    发明授权
    Vehicular head up display 有权
    车头抬头显示

    公开(公告)号:US06608608B2

    公开(公告)日:2003-08-19

    申请号:US09760736

    申请日:2001-01-17

    Inventor: Naohito Kanamori

    Abstract: A light source of a liquid crystal panel employed in a head up display for a vehicle has an embedded filament for emitting a light with high luminance and another embedded filament for emitting a light with low luminance. The embedded filament for emitting a light with low luminance is used for a first luminance range. On the other hand, the embedded filament for emitting a light with high luminance is used for a second luminance range. In addition, both the elements may be used at the same time for emitting a light with maximum luminance of the first range and the second range.

    Abstract translation: 用于车辆头部显示器中的液晶面板的光源具有用于发射高亮度的光的嵌入灯丝和用于发射低亮度的光的另一嵌入灯丝。 用于发射低亮度的光的嵌入式灯丝用于第一亮度范围。 另一方面,用于发出高亮度的光的嵌入式灯丝用于第二亮度范围。 此外,两个元件可以同时用于发射具有第一范围和第二范围的最大亮度的光。

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