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60 条记录 (耗时 0.019 秒)

    IMAGING APPARATUS AND METHODS
    43.
    发明申请
    IMAGING APPARATUS AND METHODS 有权
    成像装置和方法

    公开(公告)号：US20100328759A1

    公开(公告)日：2010-12-30

    申请号：US12440809

    申请日：2007-09-12

    申请人： Paul Anthony Kirkby ,  Robin Angus Silver ,  K.M. Naga Srinivas Nadella

    发明人： Paul Anthony Kirkby ,  Robin Angus Silver ,  K.M. Naga Srinivas Nadella

    IPC分类号： G02F1/33

    CPC分类号： G01N21/6458 ,  G02B21/0024 ,  G02B21/0036 ,  G02F1/0072 ,  G02F1/33 ,  G02F1/332 ,  G02F2201/16 ,  G02F2203/28

    摘要： Methods, systems and apparatus for manipulating electromagnetic radiation such as laser beams. A method and apparatus for correcting magnification chromatic aberration utilises one or more dispersive lenses such that long wavelength components are magnified less than short wavelength components. A telecentric relay is preferred to achieve this aim. Further, the use of polarisers to block the undesired zeroth order components of diffraction emanating from acousto-optic deflectors (AODs) is disclosed. Furthermore, specific designs of AOD including narrow transducer AODs which produce a diverging acoustic wave and AODs having two transducers and a selection switch are disclosed. Further, the invention provides methods, systems and apparatus for allowing the wavelength of radiation to be changed, for providing a user selectable degree of compensation, for providing a scanning and/or a pointing system and for providing a compact system that does not require telecentric relays between adjacent acousto-optic deflectors.

    摘要翻译： 用于操纵诸如激光束之类的电磁辐射的方法，系统和装置。 用于校正倍率色差的方法和装置利用一个或多个分散透镜，使得长波长分量放大小于短波长分量。 远心继电器是实现这一目标的首选。 此外，公开了使用偏振器阻挡从声光偏转器（AOD）发出的衍射的不希望的零级分量。 此外，公开了包括产生发声声波的窄传感器AOD和具有两个换能器的AOD和选择开关的AOD的具体设计。 此外，本发明提供了用于允许改变辐射波长的方法，系统和装置，以提供用户可选择的补偿程度，用于提供扫描和/或指示系统，并提供不需要远心的紧凑系统 相邻声光偏转器之间的继电器。

    ELECTRO-OPTICAL LIGHT CONTROL ELEMENT, ELECTRO-OPTICAL DISPLAY AND CONTROL MEDIUM
    44.
    发明申请
    ELECTRO-OPTICAL LIGHT CONTROL ELEMENT, ELECTRO-OPTICAL DISPLAY AND CONTROL MEDIUM 有权
    电光控制元件，电光显示和控制介质

    公开(公告)号：US20100188630A1

    公开(公告)日：2010-07-29

    申请号：US12677155

    申请日：2008-08-26

    申请人： Mark Goebel ,  Markus Czanta

    发明人： Mark Goebel ,  Markus Czanta

    IPC分类号： G02F1/1343 ,  C09K19/02 ,  C09K19/30 ,  C09K19/34

    CPC分类号： G02F1/0045 ,  C09K19/42 ,  C09K2019/0466 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3016 ,  G02F1/0072 ,  G02F1/134363 ,  G02F2001/134372 ,  G02F2001/13706 ,  Y10T428/10

    摘要： The present invention relates to an electro-optical light-modulation element of the FFS type, and to electro-optical displays and display systems, such as, for example, television screens and computer monitors, which contain elements of this type. The light-modulation elements according to the invention contain a liquid-crystalline modulation medium which has optimised elastic constants and are distinguished, in particular, by high contrast and/or optimised transmission in addition to good contrast, a low viewing-angle dependence, short response times and low addressing voltages. The present invention likewise relates to the liquid-crystalline modulation media used in the electro-optical light-modulation elements.

    摘要翻译： 本发明涉及一种FFS类型的电光调制元件以及包含这种元件的例如电视屏幕和计算机监视器的电光显示器和显示系统。 根据本发明的光调制元件包含具有优化的弹性常数的液晶调制介质，并且特别地通过高对比度和/或优化的透射来区分，除了良好的对比度，低视角依赖性，短的 响应时间和低寻址电压。 本发明同样涉及在电光调制元件中使用的液晶调制介质。

    Acoustooptic Device and Optical Imaging Apparatus Using the Same
    45.
    发明申请
    Acoustooptic Device and Optical Imaging Apparatus Using the Same 有权
    声光装置及使用其的光学成像装置

    公开(公告)号：US20080037100A1

    公开(公告)日：2008-02-14

    申请号：US11571218

    申请日：2005-06-29

    申请人： Hisashi Minemoto ,  Yasuo Kitaoka ,  Isao Kidoguchi ,  Takayuki Negami ,  Yasuhito Takahashi ,  Toshimi Nishiyama ,  Kimihiko Shibuya

    发明人： Hisashi Minemoto ,  Yasuo Kitaoka ,  Isao Kidoguchi ,  Takayuki Negami ,  Yasuhito Takahashi ,  Toshimi Nishiyama ,  Kimihiko Shibuya

    IPC分类号： G02F1/33

    CPC分类号： G02F1/0072

    摘要： The present invention provides an acoustooptic device usable even with light in the ultraviolet region, free from laser damage and optical damage, and excellent in acoustooptic performance and an optical imaging apparatus using the same. The acoustooptic device according to the present invention includes a high-frequency signal input part (65), a transducer part (64), and an acoustooptic medium (6). A high-frequency signal input from the high-frequency signal input part (65) is converted into a mechanical vibration by the transducer part (64), and an optical characteristic of the acoustooptic medium (6) varies depending on the mechanical vibration. The acoustooptic medium is formed of a Group III nitride crystal. The optical imaging apparatus according to the present invention includes a light source, an acoustooptic device, a driving circuit, and an image plane. Light from the light source is diffracted by the acoustooptic device in accordance with a signal from the driving circuit and the resultant diffracted light forms an image on the image plane. An acoustooptic medium of the acoustooptic device is formed of a Group III nitride crystal.

    摘要翻译： 本发明提供即使在紫外线区域中的光也可以使用，没有激光损伤和光学损伤以及良好的声光性能的光学装置和使用该光学装置的光学成像装置。 根据本发明的声光装置包括高频信号输入部分（65），换能器部分（64）和声光介质（6）。 从高频信号输入部（65）输入的高频信号由换能器部（64）转换为机械振动，声光介质（6）的光学特性根据机械振动而变化。 声光介质由III族氮化物晶体形成。 根据本发明的光学成像装置包括光源，声光装置，驱动电路和图像平面。 来自光源的光根据来自驱动电路的信号被声光装置衍射，并且所得到的衍射光在图像平面上形成图像。 声光装置的声光介质由III族氮化物晶体形成。

    OPTICAL MODULATOR AND IMAGE PROJECTOR BASED ON LEAKY-MODE WAVEGUIDE WITH SPATIAL MULTIPLEXING
    46.
    发明公开
    OPTICAL MODULATOR AND IMAGE PROJECTOR BASED ON LEAKY-MODE WAVEGUIDE WITH SPATIAL MULTIPLEXING 审中-公开

    公开(公告)号：US20240094568A1

    公开(公告)日：2024-03-21

    申请号：US18135020

    申请日：2023-04-14

    申请人： Meta Platforms Technologies, LLC

    发明人： Sundeep Kumar Jolly ,  Sihui He

    IPC分类号： G02F1/035 ,  G02F1/00 ,  G02F1/03

    CPC分类号： G02F1/035 ,  G02F1/0072 ,  G02F1/0327

    摘要： A leaky-mode acousto-optical modulator may be used to generate visual images suitable for direct viewing, without image-forming optics. To extend a field of view of the modulator to limits suitable for visual displays, an array of acoustic transducers is coupled to a waveguide along its length. Each acoustic transducer generates an acoustic wave causing a corresponding leaky mode to appear. A reflector is disposed proximate each transducer for directing the out-coupled light portion at a unique angle, providing a corresponding field of view portion for that direction. The field of view portions coalesce into a continuous synthetic field of view suitable for wide-angle visual display applications.

    INTEGRATED CAVITY ACOUSTO-OPTICS FOR FREQUENCY DOMAIN OPTICAL COMPUTING AND FREQUENCY COMB GENERATION
    47.
    发明公开
    INTEGRATED CAVITY ACOUSTO-OPTICS FOR FREQUENCY DOMAIN OPTICAL COMPUTING AND FREQUENCY COMB GENERATION 审中-公开

    公开(公告)号：US20230408851A1

    公开(公告)日：2023-12-21

    申请号：US18333113

    申请日：2023-06-12

    申请人： UNIVERSITY OF WASHINGTON

    发明人： Mo Li ,  Han Zhao ,  Bingzhao Li

    IPC分类号： G02F1/00 ,  G02F1/03 ,  G02F1/035

    CPC分类号： G02F1/0072 ,  G02F2203/15 ,  G02F1/0356 ,  G02F1/0311

    摘要： Systems and methods for optical computation and acousto-optic modulation are described. The systems and methods comprise acousto-optic modulators with reflectors and transducers used for actuation and modulation of mechanical waves. The systems further comprise multilayer optical computing systems incorporating arrays of acousto-optic modulators. In an embodiment, the acousto-optic modulator comprises a substrate; an optical layer coupled to a first portion of the substrate, the optical layer comprising: a free-standing portion shaped and positioned to define a gap between the free-standing portion of the optical layer and the substrate; and a rib waveguide comprising a photonic crystal, formed in the free-standing portion; and a piezoelectric transducer mechanically coupled to the free-standing portion, wherein the piezoelectric transducer comprises a piezoelectric material and a plurality of conductive electrodes disposed in electrically conductive contact with the piezoelectric material, the plurality of conductive electrodes extending from a base portion of the piezoelectric transducer.

    Photoelastic modulator having symmetric structure and forty-five degree double-drive photoelastic modulator
    48.
    发明授权
    Photoelastic modulator having symmetric structure and forty-five degree double-drive photoelastic modulator 有权

    公开(公告)号：US10036903B2

    公开(公告)日：2018-07-31

    申请号：US15149795

    申请日：2016-05-09

    申请人： North University of China

    发明人： Zhibin Wang ,  Kewu Li ,  Rui Zhang ,  Youhua Chen ,  Yuanyuan Chen ,  Jinhua Li ,  Xinglai Liu ,  Changqing Yang

    IPC分类号： G02F1/01 ,  G02F1/00

    CPC分类号： G02F1/0131 ,  G02F1/0072 ,  G02F1/0136

    摘要： The present invention relates to a Photoelastic Modulator (PEM), particularly to a novel polarized light modulator structure based on a photoelastic effect. The PEM, which controls driving voltages of two groups of piezoelectric actuators, is able to implement polarized light modulation having a relatively large optical path difference, and polarized light modulator having a fast modulation shaft moving circumferentially, and the PEM operates stably without a moving component. The present invention includes the piezoelectric actuators, a light pass crystal and a driver controller. Two light pass faces of the light pass crystal are parallel regular octagons directly facing each other, and identical rectangles are formed by side faces of the light pass crystal. The piezoelectric actuators are in soft connection with middle positions of the rectangles by connection rubber layers. The width directions of the piezoelectric actuators are consistent with the direction of the light pass thickness of the light pass crystal, and the widths are slightly larger than the light pass thickness. The piezoelectric actuators are connected with electric output ends on the driver controller by electric adapters. This aspect is mainly applied to PEMs.

    ELECTRONIC DEVICE
    49.
    发明申请
    ELECTRONIC DEVICE 审中-公开
    电子设备

    公开(公告)号：US20160377893A1

    公开(公告)日：2016-12-29

    申请号：US14857408

    申请日：2015-09-17

    申请人： Beijing Lenovo Software Ltd. ,  Lenovo (Beijing) Limited

    发明人： Hua Yao

    IPC分类号： G02F1/01 ,  G02F1/00

    CPC分类号： G02F1/0131 ,  G02F1/0072 ,  G06F1/1616 ,  G06F1/1626 ,  G06F1/1656 ,  G06F1/182

    摘要： The present disclosure discloses an electronic device, to solve the technical problem that it is relatively complex to implement a change in color of an appearance of the electronic device in the related art. The electronic device comprises a main body having a basic form and a deformed form; and a color changing film attached to the main body to form a part of a surface of an appearance of the main body, the color changing film being deformed as the main body is changed from the basic form to the deformed form, wherein if the main body is in the basic form, the color changing film as the part of the appearance of the main body presents a first visual effect, and if the main body is in the deformed form, the color changing film as the part of the appearance of the main body presents a second visual effect different from the first visual effect. Based on the same concept, the present disclosure further discloses another electronic device.

    摘要翻译： 本公开公开了一种电子设备，用于解决相关技术中实现电子设备的外观颜色变化相对复杂的技术问题。 电子设备包括具有基本形式和变形形式的主体; 以及安装在主体上以形成主体外观表面的一部分的变色膜，随着主体从基本形式变为变形形状，变色膜变形，其中如果主体 身体是基本形式，变色膜作为主体外观的一部分呈现出第一视觉效果，如果主体处于变形形式，变色膜作为外观的一部分 主体呈现出与第一视觉效果不同的第二视觉效果。 基于相同的概念，本公开进一步公开了另一种电子设备。