专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20170329202A1 ANTI-DAZZLE IMAGING CAMERA AND METHOD 审中-公开
公开(公告)号：US20170329202A1
公开(公告)日：2017-11-16
申请号：US15150781
申请日：2016-05-10
申请人： Raytheon Company
发明人： Mitchell B. Haeri
IPC分类号： G02F1/35 , H04N5/225 , G02F1/355 , H04N5/238 , G02F1/00
CPC分类号： G02F1/3515 , G01J1/0271 , G01J1/0407 , G01J2001/0285 , G02F1/0063 , G02F1/0338 , G02F1/3551 , G02F2203/52 , G03B7/003 , G03B11/045 , H04N5/2254 , H04N5/238
摘要： An anti-dazzle imaging camera is provided that includes a photorefractive crystal that is wavelength-agnostic. The photorefractive crystal is configured to receive an optical beam. When the optical beam includes no laser, the photorefractive crystal is configured to pass the optical beam unchanged to an imaging detector. When the optical beam includes a laser, the photorefractive crystal is configured to attenuate the laser to generate a modified optical beam and to pass the modified optical beam to the imaging detector.

2. 发明申请

US20140363162A1 OPTICAL DEVICE AND METHODS 有权
标题翻译：光学装置和方法
公开(公告)号：US20140363162A1
公开(公告)日：2014-12-11
申请号：US14374628
申请日：2013-01-23
申请人： CAMBRIDGE ENTERPRISE LIMITED
发明人： Daping Chu , Neil Collings , John Richard Moore , Mykhaylo Pivnenko , Brian Robertson
IPC分类号： H04Q11/00 , H04J14/02 , G02F1/03
CPC分类号： H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
摘要： We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.
摘要翻译：我们描述了用于操纵光信号的方法和设备。一种操纵光信号的方法包括：在光信号的路径中提供包括蓝相液晶层（106）的装置（100）; 以及在蓝相液晶层（106）上应用动态变化的电压空间图案，从而使得蓝相液晶层（106）的折射率根据动态变化的空间图案而变化。

3. 发明授权

US08089684B1 Photonic RF and microwave phase shifters 有权
标题翻译：光子射频和微波移相器
公开(公告)号：US08089684B1
公开(公告)日：2012-01-03
申请号：US12405113
申请日：2009-03-16
申请人： Prakash Koonath , Lute Maleki
发明人： Prakash Koonath , Lute Maleki
IPC分类号： G02F1/01 , G02F1/00 , G02F1/03
CPC分类号： G02F1/0356 , G02F1/0311 , G02F1/0338 , G02F2203/15 , G02F2203/50 , H03B17/00
摘要： Techniques and devices for tuning a phase shift of an RF or microwave signal by using an optical tuning mechanism based on photonic elements.
摘要翻译：通过使用基于光子元件的光学调谐机构来调整RF或微波信号的相移的技术和装置。

4. 发明授权

US07672036B2 Non-linear optical bodies and devices 失效
标题翻译：非线性光学体和器件
公开(公告)号：US07672036B2
公开(公告)日：2010-03-02
申请号：US10148672
申请日：2000-12-01
申请人： Gary Cook
发明人： Gary Cook
IPC分类号： G02B26/00
CPC分类号： G02F1/355 , G02F1/0338
摘要： The need to have a large single crystal of photorefractive material for devices such as optical limiters, optical memory, and beam couplers, is avoided by providing a photorefractive body (42) comprising small photorefractive particles (44) coupled by a couplant (43), for example glass, which is refractive index-matched to the particles. Such a body may comprise a fiber (42), or a bulk body (80). For many uses it will be necessary to align the photorefractive particles in the body and this can be achieved using fluid flows or electrostatically. Methods of making the particles, and of making photorefractive bodies are disclosed. Devices incorporating particle-couplant matrix bodies are disclosed.
摘要翻译：通过提供包括通过耦合剂（43）耦合的小的光折变颗粒（44）的光折射体（42）来避免需要具有用于诸如光学限制器，光学存储器和光束耦合器之类的器件的光折射材料的大的单晶，例如与颗粒折射率匹配的玻璃。这种主体可以包括纤维（42）或散装体（80）。对于许多用途，必须将体内的光折射颗粒对准，这可以使用流体流动或静电来实现。公开了制造颗粒和制造光折射体的方法。公开了结合粒子 - 耦合剂矩阵体的装置。

5. 发明授权

US07206114B2 Plasmon-photon coupled optical devices 失效
标题翻译：等离子体光子耦合光学器件
公开(公告)号：US07206114B2
公开(公告)日：2007-04-17
申请号：US11517780
申请日：2006-09-08
申请人： John Ballato , David L. Carroll , Jeffrey R. Dimaio
发明人： John Ballato , David L. Carroll , Jeffrey R. Dimaio
IPC分类号： G02F1/03 , G02F1/00 , G02F1/01 , H01J3/14
CPC分类号： G02F1/353 , G02F1/0338 , G02F2202/32 , G02F2203/10 , G02F2203/52
摘要： The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a diameter less than the wavelength of light. In one embodiment, the surface elements can be an array of anisotropic apertures and the films can act as a polarizer. The disclosed devices can also include a material having a variable refractive index substantially adjacent to the metal film. For example, the refractive index of the adjacent material can vary according to some characteristic of the light incident to the device, for instance, the intensity or the angle of incidence of the light. In this embodiment, resonant coupling of incident light with the SPP, and hence transmittivity of the device, can depend upon the nature of incident light. The disclosed devices can be useful in, for example, remote polarizers, polarization mode dispersion, isolators, multi-color displays, switches, such as can be controlled according to incident sunlight, or optical filters, such as for eye protection devices, filtering out possibly harmful light.
摘要翻译：本发明涉及光学器件。更具体地，所公开的装置包括限定周期性阵列的表面元件的膜，以便产生表面等离子体激元极化子。该膜还包括直径小于光的波长的至少一个孔。在一个实施例中，表面元件可以是各向异性孔的阵列，并且膜可以用作偏振器。所公开的装置还可以包括具有与金属膜基本相邻的可变折射率的材料。例如，相邻材料的折射率可以根据入射到该装置的光的一些特性而变化，例如光的入射角或强度。在本实施例中，入射光与SPP的谐振耦合以及因此器件的透射率可以取决于入射光的性质。所公开的装置可用于例如远程偏振器，偏振模色散，隔离器，多色显示器，诸如可以根据入射的太阳光控制的开关，或诸如用于眼睛保护装置的滤光器，过滤掉可能有害的光。

6. 发明授权

US06947626B2 Optical cross-connect device 失效
标题翻译：光交叉设备
公开(公告)号：US06947626B2
公开(公告)日：2005-09-20
申请号：US10402464
申请日：2003-03-28
申请人： Teruya Sugiyama , Mitsuteru Inoue , Shin Dong-Hak , Hitoshi Masuda
发明人： Teruya Sugiyama , Mitsuteru Inoue , Shin Dong-Hak , Hitoshi Masuda
IPC分类号： G02B5/32 , G02F1/03 , G11C13/04 , H04Q11/00 , G02B6/26 , G02B6/42
CPC分类号： G02B5/32 , G02B6/3556 , G02B6/356 , G02F1/0338 , G11C13/042 , H04Q11/0005 , H04Q2011/0028 , H04Q2011/0035 , H04Q2011/0039
摘要： An optic switch for cross-connecting input light signals incoming from inlet fiber cables to outlet fiber cables is disclosed that makes use of a holographic filter (5) having a series of preformed different speckle patterns, each in the form of a hologram (H1, H2, . . . ). Associated with input light signals guided past respective inlet passages (4in) of a multimode waveguide (4), different speckle patterns are formed by applying different control voltages across respective electrode pairs (10, 10a) provided thereon. These speckle patterns past a single outlet passage (4out) of the multimode waveguide (4) into which the inlet passages (4in) converge are joined together and enter the holographic filter (5) in which an input light signal is selectively switched, addressed and cross-connected to an outlet waveguide (2) through a region thereof where a formed speckle pattern coincides with a preformed speckle pattern. The multi mode waveguides (4) is formed in, e. g., a LiNbO3 photorefractive substrate (3).
摘要翻译：公开了一种用于交叉连接从入口光缆到出口光纤电缆的输入光信号的光开关，其利用具有一系列预制的不同散斑图案的全息滤光片（5），每个都具有全息图形式（H < SUB> 1，H 2，...，...）。与通过多模波导（4）的相应入口通道（4 in）引导的输入光信号相关联，通过在其上提供的各个电极对（10,10a）施加不同的控制电压来形成不同的散斑图案。通过入口通道（4 in）会聚在其中的多模波导（4）的单个出口通道（4 out）上的这些斑点图案被连接在一起并进入选择性地切换输入光信号的全息滤光器（5）寻址并通过其出口波导（2）交叉连接，其中形成的斑点图案与预先形成的斑点图案重合。多模波导（4）形成在，例如，例如，LiNbO 3光折射基板（3）。

7. 发明申请

US20040233940A1 POWER FIBER LASER WITH MODE CONVERSION 有权
标题翻译：功率光纤激光器，具有模式转换
公开(公告)号：US20040233940A1
公开(公告)日：2004-11-25
申请号：US10069533
申请日：2002-03-06
发明人： Jean-Pierre Huignard , Arnaud Brignon
IPC分类号： H01S003/30 , H01S003/091
CPC分类号： H01S3/067 , G02B6/04 , G02B6/2848 , G02B6/4206 , G02F1/0338 , G02F2201/04 , G02F2201/05 , H01S3/06754 , H01S3/094003 , H01S3/302
摘要： A pumped-fiber laser comprising a multimode doped fiber (1) and a holographic spatial mode conversion device (3).
摘要翻译：一种包括多模掺杂光纤（1）和全息空间模式转换装置（3）的泵浦光纤激光器。

8. 发明申请

US20040021925A1 Non-linear increase in photosensitivity of photorefractive materials 失效
$Non-linear increase in photosensitivity of photorefractive materials$
标题翻译：光折射材料的光敏性非线性增加
公开(公告)号：US20040021925A1
公开(公告)日：2004-02-05
申请号：US10211768
申请日：2002-08-01
发明人： Karsten Buse , Marc Luennemann
IPC分类号： G02F001/03 , G02F001/07
CPC分类号： G02F1/0338 , G03H2001/026 , G03H2001/0268
摘要： A method of and/or device for writing to an optical modulator using electromagnetic write beams, the modulator having a photorefractive converter body in which the space-modulated write beam may induce changes in the refractive index. An external voltage may be applied to the converter body. The intensity of the external voltage may be selected within a voltage range in which the buildup of changes in the refractive index may be accelerated by an increase in the charge carrier mobility or charge carrier density.
摘要翻译：一种用于使用电磁写入光束写入光学调制器的方法和/或设备，该调制器具有光折射转换器主体，其中空间调制的写入光束可以引起折射率的变化。可以将外部电压施加到转换器主体。可以在电荷范围内选择外部电压的强度，其中可以通过电荷载流子迁移率或电荷载流子密度的增加来加速折射率的变化。

9. 发明申请

US20030123115A1 Wide-band tunable optical filter using electroholograms written into photorefractive crystals 失效
$Wide-band tunable optical filter using electroholograms written into photorefractive crystals$
标题翻译：宽带可调光滤波器，使用电折射写入光折变晶体
公开(公告)号：US20030123115A1
公开(公告)日：2003-07-03
申请号：US10033201
申请日：2001-12-27
发明人： Ali R. Motamedi , Douglas M. Baney , Jeffrey N. Miller , Marshall T. Depue
IPC分类号： G02B005/32
CPC分类号： G02B5/203 , G02F1/0338 , G02F2203/055 , G03H2260/54 , H04Q2011/0018 , H04Q2011/0022 , H04Q2011/0035
摘要： A tunable optical filter utilizes multiple electroholographic (EH) gratings with different center wavelengths to filter an optical signal over a wide wavelength range. The EH gratings are connected such that an input optical signal passes through at least one of the EH gratings. The EH gratings are activated and tuned by electrode pairs that are controlled through a voltage controller. The tunable optical filter is coarse tuned by activating the EH gratings having a wavelength range that includes the center wavelength that is to be filtered and fine tuned by adjusting the voltage that is applied across the activated EH gratings.
摘要翻译：可调光滤波器利用具有不同中心波长的多个电子照相（EH）光栅来在宽波长范围内对光信号进行滤波。 EH光栅被连接成使得输入光信号通过至少一个EH光栅。 EH光栅通过电压控制器控制的电极对被激活和调谐。通过激活具有包括待滤波的中心波长的波长范围的EH光栅，通过调节施加在激活的EH光栅上的电压进行微调，可调谐滤光器被粗调。

10. 发明申请

US20020135852A1 Method and apparatus for generating and controlling spin propagation using one or more coherent light beams 失效
标题翻译：用于使用一个或多个相干光束产生和控制自旋传播的方法和装置
公开(公告)号：US20020135852A1
公开(公告)日：2002-09-26
申请号：US10103147
申请日：2002-03-22
发明人： Ravi D.R. Bhat , John Edward Sipe , Henry Martin Van Driel
IPC分类号： G02F001/03 , G02F001/07
CPC分类号： G02F1/0338
摘要： The present invention uses quantum interference of one and two photon absorption from a multiple color fields to optically inject ballistic spin currents in unbiased photoconductors. The spin currents can be generated with and without an accompanying electrical current and can be controlled using the relative phase of the colors. In one aspect of the there is provided a method of generating spin currents in a photoconductor material comprising producing a first coherent light beam having a first frequency null1 and a second coherent light beam having a frequency twice the first frequency 2null1, polarizing the first and second coherent light beams to have a preselected polarization with respect to each other, and simultaneously irradiating a selected region of the photoconductor material with the first coherent light beam and the second coherent light beam to generate a spin current in the photoconductor. When the photoconductor has a noncentrosymmetric zincblende (Td symmetry) crystal structure a single coherent light beam can be used to obtain pure spin currents and mixed electrical and spin, currents may be produced when the photoconductor has a wurtzite structure.
摘要翻译：本发明使用来自多个色域的一个和两个光子吸收的量子干涉来在无偏差的光电导体中光学地注入弹道自旋电流。自旋电流可以在有和没有伴随电流的情况下产生，并且可以使用颜色的相对相位来控制。在一个方面，提供了一种在光电导体材料中产生自旋电流的方法，包括产生具有第一频率ω1的第一相干光束和具有频率为第一频率2omega1的频率的第二相干光束，使第一和第二相干光束相对于彼此具有预选的极化，并且同时用第一相干光束和第二相干光束照射感光体材料的选定区域，以在感光体中产生自旋电流。当光电导体具有非中心对称的锌辉石（Td对称）晶体结构时，可以使用单个相干光束获得纯自旋电流，并且当感光体具有纤锌矿结构时，可产生混合的电和自旋电流。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式