会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 81. 发明申请
    • OPTICAL MULTIPLEXING APPARATUS AND PROJECTOR
    • 光学多路复用器和投影机
    • US20120236212A1
    • 2012-09-20
    • US13514157
    • 2011-10-12
    • Tatsuo ItohTetsuro Mizushima
    • Tatsuo ItohTetsuro Mizushima
    • G02B3/00H04N9/31G02B27/12
    • G02B3/005G02B3/0056G02B3/0068G02B27/123G03B21/2013G03B21/208
    • An object of the present invention is to provide an optical multiplexing apparatus and a projector that keep an optical system small, and easily adjust a number of light source units. The optical multiplexing apparatus has: a light source section that uses light source units to emit collimated beams; a first lens portion that converges the collimated beams which enter at different incident angles from each other to define converging positions; and a second lens portion that has focal points that correspond to the converging positions, respectively, wherein the first and second lens portions form an optical reduction system, and an optical axis of the second lens portion, which is directed to the corresponding focal point to one of the converging positions, extends along anther optical axis of the second lens position, which is directed to the corresponding focal point to another of the converging positions.
    • 本发明的目的是提供一种使光学系统保持较小并且容易调节光源单元的光学多路复用装置和投影仪。 光复用装置具有:使用光源单元发射准直光束的光源部; 第一透镜部分,其将以相互不同的入射角进入的准直光束会聚以限定会聚位置; 以及第二透镜部分,其具有分别对应于会聚位置的焦点,其中所述第一和第二透镜部分形成光学还原系统,并且所述第二透镜部分的光轴被引导到对应的焦点 会聚位置中的一个沿着第二透镜位置的另一个光轴延伸,其被引导到对应的焦点到另一个会聚位置。
    • 82. 发明申请
    • WAVELENGTH CONVERSION DEVICE AND IMAGE DISPLAY APPARATUS USING SAME
    • 波长转换装置和图像显示装置
    • US20120044280A1
    • 2012-02-23
    • US13266956
    • 2011-03-01
    • Kenji NakayamaTetsuro MizushimaTatsuo ItohHiroyuki Furuya
    • Kenji NakayamaTetsuro MizushimaTatsuo ItohHiroyuki Furuya
    • G09G5/10G09G5/00G02F1/35
    • H01S3/109G03B21/20G03B21/2033H01S3/0621H01S3/0627H01S3/08072H01S3/094076H01S3/1312H04N9/3111H04N9/3161
    • A wavelength conversion device includes an excitation light source (11) that generates excitation light, a laser medium (12) that generates fundamental light by means of the excitation light, two resonator mirrors (13) that are disposed with the laser medium (12) being interposed therebetween and resonate the fundamental light, a wavelength conversion element (14) that is disposed between the two resonator mirrors (13) and wavelength-converts the fundamental light to harmonic light, and a drive unit (15) that generates a pulse modulation signal to pulse-drive the excitation light source (11). The laser medium (12) is formed of a material having a thermo-optical effect and a positive thermo-optical constant. The pulse modulation signal generated by the drive unit (15) has an initial interval (P1) including a rising edge of a pulse and a remaining interval (P2) subsequent to the initial interval. An average signal intensity during the initial interval (P1) is higher than an average signal intensity during the remaining interval (P2).
    • 波长转换装置包括产生激发光的激发光源(11),通过激发光产生基本光的激光介质(12),与激光介质(12)一起设置的两个谐振器反射镜(13) 插入在它们之间并共振基本光;布置在两个谐振镜之间的波长转换元件(14),并将基波波长转换成谐波光;以及驱动单元(15),其产生脉冲调制 信号脉冲驱动激发光源(11)。 激光介质(12)由具有热光效应和正热稳定性的材料形成。 由驱动单元(15)产生的脉冲调制信号具有包括脉冲上升沿和初始间隔之后的剩余间隔(P2)的初始间隔(P1)。 初始间隔(P1)期间的平均信号强度高于剩余间隔(P2)期间的平均信号强度。
    • 83. 发明授权
    • Compact dual-band resonator using anisotropic metamaterial
    • 使用各向异性超材料的紧凑型双频谐振器
    • US07952526B2
    • 2011-05-31
    • US11844249
    • 2007-08-23
    • Cheng-Jung LeeKevin M. K. H. LeongTatsuo Itoh
    • Cheng-Jung LeeKevin M. K. H. LeongTatsuo Itoh
    • H01Q1/38H01Q15/02
    • H01Q9/0457H01Q1/38H01Q9/0414H01Q15/008H01Q15/0086
    • A dual-band resonator with compact size, such as a resonant type dual-band antenna, which uses an anisotropic metamaterial is described. The artificial anisotropic medium is implemented by employing a composite right/left-handed transmission line. The dispersion relation and the antenna physical size only depend on the composition of the unit cell and the number of cells used. By engineering the characteristics of the unit cells to be different in two orthogonal directions, the corresponding propagation constants can be controlled, thus enabling dual-band antenna resonances. In addition, the antenna dimensions can be markedly minimized by maximally reducing the unit cell size. A dual-band antenna is also described which is designed for operation at frequencies for PCS/Bluetooth applications, and which has a physical size of 1/18λ0× 1/18λ0× 1/19λ0, where λ0 is the free space wavelength at 2.37 GHz.
    • 描述了使用各向异性超材料的具有紧凑尺寸的双频带谐振器,例如谐振型双频天线。 通过使用复合右/左传输线来实现人造各向异性介质。 色散关系和天线物理尺寸仅取决于单元电池的组成和使用的电池数量。 通过将单位单元的特性在两个正交方向上设计为不同,可以控制相应的传播常数,从而实现双频天线谐振。 此外,通过最大限度地减小晶胞尺寸,可以显着地最小化天线尺寸。 还描述了一种双频天线,其被设计用于在PCS /蓝牙应用的频率下操作,并且具有1 /18λ0×1 /18λ0×1 /19λ0的物理尺寸,其中λ0是2.37GHz的自由空间波长 。
    • 84. 发明申请
    • COMPOSITE RIGHT/LEFT (CRLH) COUPLERS
    • 复合右/左(CRLH)联轴器
    • US20110090023A1
    • 2011-04-21
    • US12122311
    • 2008-05-16
    • Tatsuo ItohChristophe CalozI-Hsiang LinHiroshi Okabe
    • Tatsuo ItohChristophe CalozI-Hsiang LinHiroshi Okabe
    • H01P5/18
    • H01P5/227
    • High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    • 利用人造复合右/左传输线(CRLH-TL)描述高频耦合器和耦合技术。 描述了三种具体形式的耦合器; (1)耦合线反向耦合器被描述为具有任意的紧/松耦合和宽带宽; (2)以增加的带宽和减小的尺寸描述紧凑的增强带宽混合环耦合器; 和(3)双频分支线耦合器,不限于频带之间的谐波关系。 这些变化优选地在微带制造过程中实现,并且可以使用集总元件部件。 耦合器和耦合技术旨在增加效用,同时降低高频耦合器的尺寸,并且适用于集成在集成器件内的单独的耦合器或耦合器。
    • 88. 发明申请
    • POWER COMBINERS USING META-MATERIAL COMPOSITE RIGHT/LEFT HAND TRANSMISSION LINE AT INFINITE WAVELENGTH FREQUENCY
    • 在无限波长频率下使用金属材料复合材料/左手传动线的动力组合
    • US20080001684A1
    • 2008-01-03
    • US11744160
    • 2007-05-03
    • Tatsuo ItohKevin LeongAlexandre Dupuy
    • Tatsuo ItohKevin LeongAlexandre Dupuy
    • H03H7/38H01P5/12
    • H01P5/12
    • Power combining methods and devices for tunnel diode oscillators using the infinite wavelength phenomenon observed in composite right/left-handed (CRLH) meta-material lines are described. One implementation utilizes a series combiner composed of zero degree lines, with each oscillator output port connected directly to the line and combined in-phase, to equally combine the power in phase. In a second implementation, a section of zero degree transmission line implements a stationary wave resonator with oscillators loosely coupled to the resonator, where the wave amplitude and phase are constant along the line. In one test of this second implementation a maximum power combining efficiency of 131% was obtained with the zeroth order resonator with two tunnel diodes oscillators at 2 GHz.
    • 描述了使用复合右/左(CRLH)超材料线中观察到的无限波长现象的隧道二极管振荡器的功率组合方法和装置。 一个实现方案采用由零度线构成的串联组合器,每个振荡器输出端口直接连接到线路并且同相并联,以同步地并联功率。 在第二实施方案中,零度传输线的一部分实现了具有与谐振器松耦合的振荡器的固定波谐振器,其中波幅和相位沿线路是恒定的。 在该第二实施例的一个测试中,使用具有2GHz的两个隧道二极管振荡器的零阶次谐振器获得了131%的最大功率组合效率。
    • 90. 发明申请
    • Zeroeth-order resonator
    • 零级谐振器
    • US20060066422A1
    • 2006-03-30
    • US11092143
    • 2005-03-28
    • Tatsuo ItohAtsushi SanadaChristophe Caloz
    • Tatsuo ItohAtsushi SanadaChristophe Caloz
    • H01P7/00
    • H01P7/082
    • A high frequency resonator circuit and method of fabrication is described which has a resonant frequency independent of physical resonator dimensions. The resonator operates in a zeroeth-order mode on a composite right/left-handed (CRLH) transmission line (TL). The LH wave properties of the CRLH-TL contributing anti-parallel phase and group velocities. In one variation, the unit cells are formed from microstrip techniques, preferably creating alternating interdigitated capacitors and stub inductors. The resonant wavelength of the resonator is dependent on the electrical characteristics of the unit cells and not the physical size of the resonator in relation to the desired resonant wavelength. The resonator is created with at least 1.5 unit cells and the Q of the resonator is substantially independent of the number of unit cells utilized. The resonator circuit is particularly well suited for reducing resonator size, and allows resonators of various wavelengths to be fabricated within a fixed board area.
    • 描述了具有与物理谐振器尺寸无关的谐振频率的高频谐振器电路和制造方法。 谐振器在复合右/左手(CRLH)传输线(TL)上以零级模式工作。 CRLH-TL的LH波特性有助于反平行相和群速度。 在一个变型中,单元电池由微带技术形成,优选地产生交替的交错电容器和短截线电感器。 谐振器的谐振波长取决于单元电池的电特性,而不是相对于期望谐振波长的谐振器的物理尺寸。 谐振器的产生至少为1.5个单元,谐振器的Q基本上与所使用的单元电池数量无关。 谐振器电路特别适合于减小谐振器尺寸,并且允许在固定的电路板区域内制造各种波长的谐振器。