公开(公告)号：US06281994B1

公开(公告)日：2001-08-28

申请号：US09469850

申请日：1999-12-21

申请人： Tsutomu Horikoshi ,  Haruhiko Kojima ,  Noboru Sonehara ,  Masahiro Sasaura ,  Tadayuki Imai ,  Shogo Yagi ,  Akiyuki Tate ,  Kazuhito Higuchi ,  Takaaki Akimoto

发明人： Tsutomu Horikoshi ,  Haruhiko Kojima ,  Noboru Sonehara ,  Masahiro Sasaura ,  Tadayuki Imai ,  Shogo Yagi ,  Akiyuki Tate ,  Kazuhito Higuchi ,  Takaaki Akimoto

IPC分类号： G03H122

CPC分类号： G03H1/0248 ,  G03H1/08 ,  G03H1/2205 ,  G03H1/2249 ,  G03H1/2294 ,  G03H1/2645 ,  G03H2001/0268 ,  G03H2001/2297 ,  G03H2210/22 ,  G03H2210/30 ,  G03H2210/46 ,  G03H2260/36

摘要： A method and an apparatus for three-dimensional holographic display suitable for moving object display are disclosed. At least one hologram of a display target object is displayed on a display device, and a non-scattered light is irradiated onto the display device to produce a scattered light. Then the scattered light from the display device as an object light of the display target object and the non-scattered light as a reference light are irradiated simultaneously at different incident angles onto a photorefractive medium having a photorefractive effect, and interference fringes generated by the object light and the reference light are recorded in the photorefractive medium. Then, the three-dimensional image is displayed by irradiating only the non-scattered light onto the photorefractive medium so as to reproduce a holographic image corresponding to the interference fringes recorded in the photorefractive medium.

摘要翻译： 公开了一种适用于移动物体显示的三维全息显示的方法和装置。 在显示装置上显示至少一个显示目标物体的全息图，并且将非散射光照射到显示装置上以产生散射光。 然后将作为显示目标物体的物体的显示装置的散射光和作为参考光的非散射光以不同的入射角同时照射到具有光折射效应的光折射介质上，并且由物体产生的干涉条纹 光和参考光被记录在光折射介质中。 然后，通过仅将非散射光照射到光折射介质上来显示三维图像，以便再现与记录在光折射介质中的干涉条纹相对应的全息图像。

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

公开(公告)号：US07340116B2

公开(公告)日：2008-03-04

申请号：US11538716

申请日：2006-10-04

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： G02F1/295 ,  G02B6/26 ,  G02B6/42

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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： 光开关，光调制器和波长可变滤波器各自具有简单的配置，其仅需要与极化无关的低驱动电压，并且可以高速运行。 光开关包括放置在输出端的3-dB耦合器，放置在输出端的3-dB耦合器，以及连接输入侧3-dB耦合器和输出侧3-dB耦合器的两个光波导。 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。 至少两个光波导是包括晶体材料的晶体材料，所述晶体材料包括KTa x Nb 1-x O 3（0 x <1> x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 0 x 0 <1,0

公开(公告)号：US07336854B2

公开(公告)日：2008-02-26

申请号：US11538788

申请日：2006-10-04

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： G02F1/295 ,  G02B6/34 ,  G02B6/26 ,  G02B6/42

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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

公开(公告)号：US20070092181A1

公开(公告)日：2007-04-26

申请号：US11538716

申请日：2006-10-04

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： G02B6/26

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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： 光开关，光调制器和波长可变滤波器各自具有简单的配置，其仅需要与极化无关的低驱动电压，并且可以高速运行。 光开关包括放置在输出端的3-dB耦合器，放置在输出端的3-dB耦合器，以及连接输入侧3-dB耦合器和输出侧3-dB耦合器的两个光波导。 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。 至少两个光波导是包括晶体材料的晶体材料，所述晶体材料包括KTa x Nb 1-x O 3（0 x 1 x x 1 x x 1 x 1 x 1 x x 1 x x 1 x x 1 x x 1 <1,0

公开(公告)号：US07356227B2

公开(公告)日：2008-04-08

申请号：US11538738

申请日：2006-10-04

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： G02B6/26 ,  G02B6/42 ,  G02B6/10 ,  G02B6/00

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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

公开(公告)号：US20070253659A1

公开(公告)日：2007-11-01

申请号：US11538788

申请日：2006-10-04

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 ,  G02F1/01 ,  G02F1/295 ,  G02B6/26 ,  G02B6/42

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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： 光开关，光调制器和波长可变滤波器各自具有简单的配置，其仅需要与极化无关的低驱动电压，并且可以高速运行。 光开关包括放置在输出端的3-dB耦合器，放置在输出端的3-dB耦合器，以及连接输入侧3-dB耦合器和输出侧3-dB耦合器的两个光波导。 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。 至少两个光波导是包括晶体材料的晶体材料，所述晶体材料包括KTa x Nb 1-x O 3（0 x <1> x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 0 x 0 <1,0

公开(公告)号：US20070086691A1

公开(公告)日：2007-04-19

申请号：US11538738

申请日：2006-10-04

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： G02F1/295

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： An optical switch, an optical modulator, and a wavelength variable filter each have 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 includes a 3-dB coupler placed on an output, a 3-dB coupler 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 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： 光开关，光调制器和波长可变滤波器各自具有简单的配置，其仅需要与极化无关的低驱动电压，并且可以高速运行。 光开关包括放置在输出端的3-dB耦合器，放置在输出端的3-dB耦合器，以及连接输入侧3-dB耦合器和输出侧3-dB耦合器的两个光波导。 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。 至少两个光波导是包括晶体材料的晶体材料，所述晶体材料包括KTa x Nb 1-x O 3（0 x <1> x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 0 x 0 <2,0

公开(公告)号：US20070058896A1

公开(公告)日：2007-03-15

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 output, 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出端的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晶体材料的晶体材料，所述晶体材料包括KTa x Nb 1-x O 3（0 x <1> x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 0 x 0 <1,0

公开(公告)号：US08773749B2

公开(公告)日：2014-07-08

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： G02F1/00 ,  G02F1/29 ,  G02F1/07 ,  G02F1/03

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。