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

US20120182600A1 ELECTROOPTIC DEVICE 有权
标题翻译：电子设备
公开(公告)号：US20120182600A1
公开(公告)日：2012-07-19
申请号：US13428118
申请日：2012-03-23
申请人： Kouichirou Nakamura , Kazuo Fujiura , Tadayuki Imai , Jun Miyazu
发明人： Kouichirou Nakamura , Kazuo Fujiura , Tadayuki Imai , Jun Miyazu
IPC分类号： G02F1/29
CPC分类号： G02F1/29 , G02F1/03 , G02F1/0316 , G02F1/0322 , G02F2001/291
摘要： An electrooptic device having a simple structure that can efficiently increase deflection of a beam is provided. The device includes: an electrooptic crystal (11) having an electrooptic effect; an electrode pair of a positive electrode (12) and a negative electrode (13) for generating an electric field inside the electrooptic crystal; and a power source for applying a voltage between the electrode pair so as to generate a space charge inside the electrooptic crystal. With this arrangement, by using a simple structure, a change in a deflection angle is temporally rapid, and a large deflection angle that cannot be obtained by a conventional electrooptic crystal prism can be acquired at a low applied voltage.
摘要翻译：提供了具有能够有效地增加光束偏转的简单结构的电光装置。该装置包括：具有电光效应的电光晶体（11）用于在电光晶体内产生电场的正极（12）和负极（13）的电极对; 以及用于在电极对之间施加电压以在电光晶体内产生空间电荷的电源。通过这种结构，通过使用简单的结构，偏转角的变化在时间上是快速的，并且可以在低的施加电压下获得通过常规电光晶体棱镜不能获得的大的偏转角。

2. 发明申请

US20120075694A1 VARIABLE FOCUSING LENS AND MICROSCOPE 有权
标题翻译：可变聚焦镜头和显微镜
公开(公告)号：US20120075694A1
公开(公告)日：2012-03-29
申请号：US13375212
申请日：2010-06-11
申请人： Tadayuki Imai , Masahiro Sasaura , Jun Miyazu , Shogo Yagi , Seiji Toyoda
发明人： Tadayuki Imai , Masahiro Sasaura , Jun Miyazu , Shogo Yagi , Seiji Toyoda
IPC分类号： G02B21/00 , G02B15/14
CPC分类号： G02B13/0075 , G02F1/29 , G02F2001/294
摘要： A variable focusing lens is provided that can change the focal length at a high speed. The variable focusing lens includes: a single crystal electrooptic material having inversion symmetry; a first anode formed on a first surface of the electrooptic material; a second cathode provided to have an interval to the first anode; and a first cathode and a second anode that are formed on a second surface opposed to the first surface and that are formed at positions opposed to the first anode and the second cathode. An optical axis is set so that, when light enters through a third face orthogonal to the first surface, light exists through a fourth surface opposed to the third face. A voltage applied between the first and the second pair of electrodes is changed to thereby change the focal point of light emitted from the fourth surface of the electrooptic material.
摘要翻译：提供可以高速改变焦距的可变聚焦透镜。可变聚焦透镜包括：具有反转对称性的单晶电光材料; 形成在电光材料的第一表面上的第一阳极; 第二阴极，设置成具有与第一阳极的间隔; 以及形成在与第一表面相对的第二表面上并且形成在与第一阳极和第二阴极相对的位置处的第一阴极和第二阳极。设置光轴使得当光通过与第一表面正交的第三面进入时，通过与第三面相对的第四表面存在光。改变施加在第一和第二对电极对之间的电压，从而改变从电光材料的第四表面发射的光的焦点。

3. 发明申请

US20100290104A1 VARIABLE-FOCAL LENGTH LENS 有权
标题翻译：变焦镜头长度镜头
公开(公告)号：US20100290104A1
公开(公告)日：2010-11-18
申请号：US12808105
申请日：2008-12-26
申请人： Tadayuki Imai , Masahiro Sasaura , Jun Miyazu , Shogo Yagi , Kazuo Fujiura
发明人： Tadayuki Imai , Masahiro Sasaura , Jun Miyazu , Shogo Yagi , Kazuo Fujiura
IPC分类号： G02F1/29
CPC分类号： G02F1/29 , G02F1/0316 , G02F2001/294 , G02F2201/128
摘要： To provide a variable-focal length lens capable of altering its focal length at high speed. The variable-focal length lens has an electrooptic material and electrodes formed on an incident surface of light and on an exit surface of the light of the electrooptic material. An optical axis is set so that the light is inputted into a gap where the electrodes of the incident surface are not formed and is outputted from a gap where the electrodes of the exit surface are not formed. A focus of the light that is transmitted through the electrooptic material becomes variable by varying an applied voltage between the electrodes of the incident surface and the electrodes of the exit surface.
摘要翻译：提供能够高速改变其焦距的可变焦距透镜。可变焦距透镜具有电光材料和形成在光的入射表面上的电极和电光材料的光的出射表面。光轴被设定为使得光入射到没有形成入射表面的电极的间隙，并且从未形成出射表面的电极的间隙输出光轴。通过电光材料透射的光的焦点通过改变入射表面的电极和出射表面的电极之间的施加电压而变得可变。

4. 发明授权

US07492975B2 Optical switch, optical modulator and wavelength variable filter 有权
标题翻译：光开关，光调制器和波长可变滤波器
公开(公告)号：US07492975B2
公开(公告)日：2009-02-17
申请号：US10547493
申请日：2004-03-18
申请人： Seiji Toyoda , Kazuo Fujiura , Masahiro Sasaura , Koji Enbutsu , Makoto Shimokozono , Tadayuki Imai , Akiyuki Tate , Touru Matsuura , Takashi Kurihara , Hiroshi Fushimi
发明人： Seiji Toyoda , Kazuo Fujiura , Masahiro Sasaura , Koji Enbutsu , Makoto Shimokozono , Tadayuki Imai , Akiyuki Tate , Touru Matsuura , Takashi Kurihara , Hiroshi Fushimi
IPC分类号： G02F1/035
CPC分类号： G02F1/3551 , G02B6/12011 , G02B6/12023 , G02B2006/12142 , G02B2006/12145 , G02F1/225 , G02F1/3136 , G02F1/3137 , G02F1/365 , G02F2001/212 , G02F2201/124 , G02F2203/50
摘要： The present invention provides an optical switch, an optical modulator, and a wavelength variable filter each of which has a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch according to the present invention includes a 3-dB coupler (16) placed on an input, a 3-dB coupler (17) placed on an output, and two optical waveguides connecting the input-side 3-dB coupler and the output-side 3-dB coupler together. The optical switch also includes a phase modulating section (18) that applies electric fields to one or both of the two optical waveguides. At least two optical waveguides are a crystal material including KTaxNb1-xO3 (0
摘要翻译：本发明提供了一种光开关，光调制器和波长可变滤波器，每个滤波器具有简单的结构，其仅需要与极化无关的低驱动电压，并且可以高速运行。根据本发明的光开关包括放置在输入端的3-dB耦合器（16），放置在输出端的3-dB耦合器（17）和连接输入侧3-dB耦合器和输出端3 dB耦合器。光开关还包括对两个光波导中的一个或两个施加电场的相位调制部分（18）。至少两个光波导是包括KTaxNb1-xO3（0

5. 发明授权

US07340147B2 Optical waveguide material and optical waveguide 有权
标题翻译：光波导材料和光波导
公开(公告)号：US07340147B2
公开(公告)日：2008-03-04
申请号：US11420192
申请日：2006-05-24
申请人： Tadayuki Imai , Kazuo Fujiura , Makoto Shimokozono , Seiji Toyoda , Masahiro Sasaura , Tohru Matsuura
发明人： Tadayuki Imai , Kazuo Fujiura , Makoto Shimokozono , Seiji Toyoda , Masahiro Sasaura , Tohru Matsuura
IPC分类号： G02B6/10 , C30B29/30
CPC分类号： C30B29/30 , G02B2006/121 , G02F1/035 , Y10S117/918
摘要： The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad layer 1 and has a higher refractive index than that of the under-clad layer 1 is shown. For example, KTN (KTa1-xNbxO3) is used as the core 2, and a material that is obtained by substituting at least one element selected from the group consisting of Zr, Hf, and Sn for a portion of one element of the constituent elements of KTN and has the same perovskite type crystal structure as KTN is used as the clad. The refractive index of KTN can be reduced considerably, and this controllability widens the degree of freedom in the design of optical waveguide devices.
摘要翻译：本发明提供一种光波导材料，其折射率可以在不改变Ta和Nb的比例的情况下进行调整。示出了本发明的光波导，其包括形成在下包层1上并且具有比下包层1的折射率更高的折射率的下包层1和芯2。例如，使用KTN（KTa 1-x Nb x O O 3）作为芯2，并且使用通过取代使用选自KTN的构成元素的一个元素的一部分的Zr，Hf和Sn中的至少一种元素，并且具有与KTN相同的钙钛矿型晶体结构作为包层。 KTN的折射率可以大大降低，这种可控性扩大了光波导器件的设计自由度。

6. 发明申请

US20060228089A1 Variable wavelength optical filter 审中-公开
标题翻译：可变波长光学滤波器
公开(公告)号：US20060228089A1
公开(公告)日：2006-10-12
申请号：US10554566
申请日：2004-06-11
申请人： Makoto Shimokozono , Kazuo Fujiura , Seiji Toyoda , Tadayuki Imai
发明人： Makoto Shimokozono , Kazuo Fujiura , Seiji Toyoda , Tadayuki Imai
IPC分类号： G02B6/00
CPC分类号： G02B5/288 , G02F1/21 , G02F2001/213 , G02F2203/055
摘要： A wavelength tunable optical filter (1) comprises a dielectric crystal portion (2) comprised of a dielectric crystal having a cubic system and exhibiting a quadratic electro-optic effect, a mirror portion (5, 6) constituting a Fabry-Perot etalon in cooperation with said dielectric crystal portion, and an electrode (3, 4) configured to apply a voltage to said dielectric crystal portion thereby to change a wavelength of light transmitting through said etalon on a basis of said electro-optic effect. According to the configuration, since the dielectric crystal having a cubic system and exhibiting a quadratic electro-optic effect is used, there is provided a wavelength tunable optical filter that is capable of operating at high-speed on application of a low voltage.
摘要翻译：波长可调谐滤光器（1）包括由具有立方体系并具有二次电光效应的介电晶体构成的电介质晶体部分（2），合成的构成法布里 - 珀罗标准具的镜部分（5,6）与所述电介质晶体部分相配合，以及电极（3,4），其配置为向所述介电晶体部分施加电压，从而基于所述电光效应改变透过所述标准具的光的波长。根据该结构，由于使用具有立方体系并具有二次电光效应的电介质晶体，因此提供了能够在施加低电压时高速运行的波长可调光滤波器。

7. 发明申请

US20060215981A1 OPTICAL WAVEGUIDE MATERIAL AND OPTICAL WAVEGUIDE 有权
标题翻译：光波导材料和光波导
公开(公告)号：US20060215981A1
公开(公告)日：2006-09-28
申请号：US11420192
申请日：2006-05-24
申请人： Tadayuki Imai , Kazuo Fujiura , Makoto Shimokozono , Seiji Toyoda , Masahiro Sasaura , Tohru Matsuura
发明人： Tadayuki Imai , Kazuo Fujiura , Makoto Shimokozono , Seiji Toyoda , Masahiro Sasaura , Tohru Matsuura
IPC分类号： G02B6/00
CPC分类号： C30B29/30 , G02B2006/121 , G02F1/035 , Y10S117/918
摘要： The invention provides an optical waveguide material whose refractive index can be tailored without changing the ratio of Ta and Nb. An optical waveguide of this invention comprising an under-clad layer 1 and a core 2 that is formed on the under-clad layer 1 and has a higher refractive index than that of the under-clad layer 1 is shown. For example, KTN (KTa1−xNbxO3) is used as the core 2, and a material that is obtained by substituting at least one element selected from the group consisting of Zr, Hf, and Sn for a portion of one element of the constituent elements of KTN and has the same perovskite type crystal structure as KTN is used as the clad. The refractive index of KTN can be reduced considerably, and this controlability widens the degree of freedom in the design of optical waveguide devices.
摘要翻译：本发明提供一种光波导材料，其折射率可以在不改变Ta和Nb的比例的情况下进行调整。示出了本发明的光波导，其包括形成在下包层1上并且具有比下包层1的折射率更高的折射率的下包层1和芯2。例如，使用KTN（KTa 1-x Nb x O O 3）作为芯2，并且使用通过取代使用选自KTN的构成元素的一个元素的一部分的Zr，Hf和Sn中的至少一种元素，并且具有与KTN相同的钙钛矿型晶体结构作为包层。 KTN的折射率可以大大降低，这种可控性加宽了光波导器件的设计自由度。

8. 发明授权

US06795232B2 Wavelength converter 失效
标题翻译：波长转换器
公开(公告)号：US06795232B2
公开(公告)日：2004-09-21
申请号：US10108996
申请日：2002-03-29
申请人： Kazuo Fujiura , Shogo Yagi , Tadayuki Imai , Koji Enbutsu , Masahiro Sasaura , Takashi Kurihara , Makoto Abe , Seiji Toyoda , Eishi Kubota
发明人： Kazuo Fujiura , Shogo Yagi , Tadayuki Imai , Koji Enbutsu , Masahiro Sasaura , Takashi Kurihara , Makoto Abe , Seiji Toyoda , Eishi Kubota
IPC分类号： G02F135
CPC分类号： G02F1/3534 , G02F1/3551 , G02F2001/3548
摘要： A wavelength converter implements high speed, high efficiency, low noise wavelength conversion without performing high voltage poling of a crystal, and enables switching and modulation of converted light in response to an electric field. A KLTN crystal, includes a deposited-gold electrode within its incidence plane, and is connected to a DC power supply via a copper wire. The crystal material is composed of KTa1-xNbxO3 and/or K1-yLiyTa1-xNbxO3. A polarizer controls the polarization of the fundamental wave in the direction parallel to the electric field, and launches it into the electrode of the KLTN crystal. The KLTN crystal, rotating on an axis in the direction of the electric field, launches only part of the generated SHG light with the same polarization direction as that of the incident light into a photo multiplier tube through a polarizer.
摘要翻译：波长转换器实现高速，高效率，低噪声波长转换，而不执行晶体的高电压极化，并且能够响应于电场而转换和调制转换的光。 KLTN晶体在其入射平面内包括沉积金电极，并通过铜线连接到直流电源。晶体材料由KTa1-xNbxO3和/或K1-yLiyTa1-xNbxO3组成。偏振器在平行于电场的方向上控制基波的偏振，并将其发射到KLTN晶体的电极中。沿电场方向在轴上旋转的KLTN晶体仅通过偏振器将仅一部分产生的SHG光与入射光的偏振方向相同地发射到光电倍增管中。

9. 发明授权

US09372339B2 Wavelength swept light source 有权
标题翻译：波长扫描光源
公开(公告)号：US09372339B2
公开(公告)日：2016-06-21
申请号：US13978122
申请日：2012-01-04
申请人： Seiji Toyoda , Kazunori Naganuma , Yuichi Okabe , Shogo Yagi , Kazutoshi Kato , Masahiro Ueno , Takashi Sakamoto , Tadayuki Imai , Jun Miyazu , Kazuto Noguchi , Shigeo Ishibashi
发明人： Seiji Toyoda , Kazunori Naganuma , Yuichi Okabe , Shogo Yagi , Kazutoshi Kato , Masahiro Ueno , Takashi Sakamoto , Tadayuki Imai , Jun Miyazu , Kazuto Noguchi , Shigeo Ishibashi
IPC分类号： G02F1/01 , G02F1/03 , G02F1/07 , G02B26/06 , H01S5/14 , H01S3/107 , H01S3/08 , H01S3/105
CPC分类号： G02B26/06 , H01S3/08027 , H01S3/105 , H01S3/107 , H01S5/141 , H01S5/142 , H01S5/143
摘要： A wavelength swept light source includes a sawtooth waveform as a main waveform and an exponential component of the sawtooth waveform to the controlled voltage of the electro-optic deflector. The controlled voltage is controlled so that, as an oscillation wavelength to be swept is swept towards a longer wavelength side, a change rate of the oscillation wavelength is increased.
摘要翻译：波长扫描光源包括作为主波形的锯齿波形和锯齿波形的指数分量与电光偏转器的受控电压。受控电压被控制为使得随着扫描的振荡波长向较长波长侧扫过，振荡波长的变化率增加。

10. 发明授权

US07674737B2 Optical medium, an optical lens and a prism 失效
标题翻译：光学介质，光学透镜和棱镜
公开(公告)号：US07674737B2
公开(公告)日：2010-03-09
申请号：US10599452
申请日：2005-06-22
申请人： Kazuo Fujiura , Tadayuki Imai , Masahiro Sasaura , Kouichirou Nakamura
发明人： Kazuo Fujiura , Tadayuki Imai , Masahiro Sasaura , Kouichirou Nakamura
IPC分类号： C04B35/00 , G02B3/00 , G02B7/00 , G02B9/00 , G02B5/04 , G02B7/18
CPC分类号： G03F7/70958 , C30B29/30 , G02B1/02 , Y10S117/902 , Y10S117/918 , Y10T117/1068
摘要： An optical medium having a high refractive index without anisotropy and a wide transmission wavelength is obtained. The cubic crystal material is αβO3, where α is at least one of K, Ba, Sr, Ca, and β is at least one of Ta, Ti. Optimally, the cubic crystal material is KTa1-xNbxO3, where composition x is 0≦x≦0.35. This composition enables to raise refractive index while its phase transition temperature is below a room temperature.
摘要翻译：获得具有高折射率而不具有各向异性和宽的透射波长的光学介质。立方晶体材料是α＆bgr; O3，其中α是K，Ba，Sr，Ca和＆bgr中的至少一种; 是Ta，Ti中的至少一种。最佳地，立方晶体材料是KTa1-xNbxO3，其中组分x为0＆nlE; x＆nlE; 0.35。该组合物能够提高折射率，同时其相变温度低于室温。

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