公开(公告)号：US06519077B1

公开(公告)日：2003-02-11

申请号：US09534134

申请日：2000-03-23

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Yasuo Kitaoka ,  Toshifumi Yokoyama

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Yasuo Kitaoka ,  Toshifumi Yokoyama

IPC分类号： G02F1365

CPC分类号： G02F1/365 ,  G02B6/1345 ,  G02B6/14 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  G02B2006/121 ,  G02B2006/12169 ,  G02F1/3775 ,  G02F2001/3548

摘要： An optical waveguide of the present invention includes: a nonlinear optical crystal; a first ion exchange region provided in the vicinity of a portion of a surface of the nonlinear optical crystal; and a second ion exchange region provided in the surface of the nonlinear optical crystal. The second ion exchange region covers a greater area of the surface than an area covered by the first ion exchange region. The second ion exchange region includes a region having an extent of 0.02 &mgr;m to 0.2 &mgr;m along a depth direction in which an ion exchange ratio varies along the depth direction.

摘要翻译： 本发明的光波导包括：非线性光学晶体; 设置在所述非线性光学晶体的表面的一部分附近的第一离子交换区域; 以及设置在所述非线性光学晶体的表面中的第二离子交换区域。 第二离子交换区域覆盖比由第一离子交换区域覆盖的区域更大的表面积。 第二离子交换区域沿离子交换比沿深度方向变化的深度方向具有0.02μm〜0.2μm的范围的区域。

公开(公告)号：US08287131B2

公开(公告)日：2012-10-16

申请号：US12744769

申请日：2008-11-25

申请人： Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Kenji Nakayama ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Kenji Nakayama ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： G03B21/00 ,  H01S3/093 ,  H01S3/10 ,  H01S3/04

CPC分类号： H01S3/109 ,  G02F1/3558 ,  H01S3/025 ,  H01S3/07 ,  H01S3/08086 ,  H01S3/09415 ,  H01S3/1671 ,  H01S3/1673 ,  H01S3/2375

摘要： A wavelength conversion laser is provided with a solid-state laser having a cavity, and a wavelength converting element arranged within the cavity. The solid-state laser includes two or more types of laser crystals and oscillates solid-state laser light of multiple wavelengths. The wavelength converting element converts the solid-state laser light of multiple wavelengths into light of second harmonic waves and sum-frequency wave of multiple wavelengths and simultaneously generates the second harmonic waves and sum-frequency wave of multiple wavelengths. The wavelength conversion laser outputs converted wavelength light having a broad spectral width and low coherency, thereby enabling it to carry out highly efficient and stable high-output oscillation.

摘要翻译： 波长转换激光器设置有具有空腔的固态激光器和布置在空腔内的波长转换元件。 固体激光器包括两种或更多种类型的激光晶体并振荡多个波长的固态激光。 波长转换元件将多个波长的固态激光转换为二次谐波和多个波长的和频波的光，同时产生多个波长的二次谐波和和频波。 波长转换激光器输出具有宽光谱宽度和低相干性的转换波长光，从而使其能够执行高效稳定的高输出振荡。

公开(公告)号：US07907646B2

公开(公告)日：2011-03-15

申请号：US11997108

申请日：2006-07-28

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Toshifumi Yokoyama

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Toshifumi Yokoyama

IPC分类号： H01S3/10

CPC分类号： H01S3/0627 ,  G02F2001/3505 ,  G02F2001/3509 ,  H01S3/0604 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/2383 ,  H01S5/4025

摘要： According to the present invention, a laser light source comprises plural semiconductor lasers (2), a solid laser (4), a non-linear material (3) as a wavelength conversion element, a reflection coat (5) formed on one facet of the solid laser, and a reflection coat (6) formed on one facet of the non-linear material (3), and the solid laser and the wavelength conversion element are disposed between the both reflection coats to constitute a laser resonator, and plural pump parts (8) in the solid laser (4) which are pumped by the plural semiconductor lasers are separated from each other by 300 μm or more. Thereby, interference between transverse modes of laser oscillation is avoided, thereby providing a high-power, stable, and compact solid laser light source with which a stable high output power can be obtained.

摘要翻译： 根据本发明，激光源包括多个半导体激光器（2），固体激光器（4），作为波长转换元件的非线性材料（3），反射涂层（5），其形成在 固体激光器和形成在非线性材料（3）的一个面上的反射涂层（6），并且固体激光器和波长转换元件设置在两个反射涂层之间以构成激光谐振器，并且多个泵 由多个半导体激光器泵浦的固体激光器（4）中的部分（8）彼此分开300μm以上。 因此，避免了激光振荡的横向模式之间的干扰，从而提供了可获得稳定的高输出功率的高功率，稳定且紧凑的固体激光光源。

公开(公告)号：US20100103088A1

公开(公告)日：2010-04-29

申请号：US12524820

申请日：2008-01-18

申请人： Toshifumi Yokoyama ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Kiminori Mizuuchi

发明人： Toshifumi Yokoyama ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Kiminori Mizuuchi

IPC分类号： G09G3/36 ,  H01S3/10 ,  H01S3/109

CPC分类号： G02F1/3775 ,  G02F1/3532 ,  H01S3/08059 ,  H01S3/0815 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/2383 ,  H01S5/141 ,  H04N9/3129 ,  H04N9/3161

摘要： A solid-state laser apparatus includes: a semiconductor laser light source for emitting laser light; an optical resonator having a solid-state laser medium to be excited by incidence of the laser light to oscillate fundamental laser light, and a mirror; and a quasi phase matching wavelength converting element, disposed in the optical resonator, for converting a wavelength of the fundamental laser light, wherein the quasi phase matching wavelength converting element is formed with a polarization inversion region having a predetermined cycle, and the length of the polarization inversion region in an optical axis direction is 1.0 mm or less.

摘要翻译： 固态激光装置包括：用于发射激光的半导体激光光源; 具有通过激光入射激发以激发基波激光的固态激光介质的光学谐振器和反射镜; 以及准相位匹配波长转换元件，设置在所述光谐振器中，用于转换所述基本激光的波长，其中所述准相位匹配波长转换元件形成有具有预定周期的偏振反转区域， 光轴方向的极化反转区域为1.0mm以下。

公开(公告)号：US20100309438A1

公开(公告)日：2010-12-09

申请号：US12744769

申请日：2008-11-25

申请人： Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Kenji Nakayama ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Kenji Nakayama ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： H01S3/109 ,  H01S3/10 ,  G03B21/14

CPC分类号： H01S3/109 ,  G02F1/3558 ,  H01S3/025 ,  H01S3/07 ,  H01S3/08086 ,  H01S3/09415 ,  H01S3/1671 ,  H01S3/1673 ,  H01S3/2375

摘要： A wavelength conversion laser 100 is provided with a solid-state laser having a cavity, and a wavelength converting element 6 arranged within the cavity. The solid-state laser includes two or more types of laser crystals 4 and 5 and oscillates solid-state laser light of multiple wavelengths. The wavelength converting element 6 converts the solid-state laser light of multiple wavelengths into light of second harmonic waves and sum-frequency wave of multiple wavelengths and simultaneously generates the second harmonic waves and sum-frequency wave of multiple wavelengths. The wavelength conversion laser 100 outputs converted wavelength light having a broad spectral width and low coherency, thereby enabling it to carry out highly efficient and stable high-output oscillation.

摘要翻译： 波长转换激光器100设置有具有空腔的固态激光器和布置在腔内的波长转换元件6。 固体激光器包括两种或更多种类型的激光晶体4,5和振荡多个波长的固态激光。 波长转换元件6将多个波长的固体激光转换为二次谐波和多个波长的和频波，同时产生多个波长的二次谐波和和频波。 波长转换激光器100输出具有宽光谱宽度和低相干性的转换波长光，从而使其能够执行高效稳定的高输出振荡。

公开(公告)号：US20100150186A1

公开(公告)日：2010-06-17

申请号：US11997108

申请日：2006-07-28

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Toshifumi Yokoyama

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Hiroyuki Furuya ,  Toshifumi Yokoyama

IPC分类号： H01S3/10 ,  H01S3/109 ,  H01S3/094 ,  G02F1/37

CPC分类号： H01S3/0627 ,  G02F2001/3505 ,  G02F2001/3509 ,  H01S3/0604 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/2383 ,  H01S5/4025

摘要： According to the present invention, a laser light source comprises plural semiconductor lasers (2), a solid laser (4), a non-linear material (3) as a wavelength conversion element, a reflection coat (5) formed on one facet of the solid laser, and a reflection coat (6) formed on one facet of the non-linear material (3), and the solid laser and the wavelength conversion element are disposed between the both reflection coats to constitute a laser resonator, and plural pump parts (8) in the solid laser (4) which are pumped by the plural semiconductor lasers are separated from each other by 300 μm or more. Thereby, interference between transverse modes of laser oscillation is avoided, thereby providing a high-power, stable, and compact solid laser light source with which a stable high output power can be obtained.

摘要翻译： 根据本发明，激光源包括多个半导体激光器（2），固体激光器（4），作为波长转换元件的非线性材料（3），反射涂层（5），其形成在 固体激光器和形成在非线性材料（3）的一个面上的反射涂层（6），并且固体激光器和波长转换元件设置在两个反射涂层之间以构成激光谐振器，并且多个泵 由多个半导体激光器泵浦的固体激光器（4）中的部分（8）彼此分开300μm以上。 因此，避免了激光振荡的横向模式之间的干扰，从而提供了可获得稳定的高输出功率的高功率，稳定且紧凑的固体激光光源。

公开(公告)号：US20090051827A1

公开(公告)日：2009-02-26

申请号：US11916041

申请日：2006-05-22

申请人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Shin-ichi Kadowaki ,  Kiminori Mizuuchi ,  Hiroyuki Furuya ,  Kazuhisa Yamamoto

发明人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Shin-ichi Kadowaki ,  Kiminori Mizuuchi ,  Hiroyuki Furuya ,  Kazuhisa Yamamoto

IPC分类号： H04N9/31

CPC分类号： G03B21/005

摘要： A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.

摘要翻译： 本发明的显示装置（100）在其壳体的上表面上具有第一开关（3）和第二开关（4），并且包括用于控制第一开关（3）的控制电路（18）和 第二开关（4）和光源（19）。 控制电路（18）进行控制，使得当从第一开关（3）被按压经过预定时间段之后按下第二开关（4）时，光源（19）被接通。 因此，本发明的显示装置（100）防止在投影视频之前将人进入投影区域，并且控制无意的启动。

公开(公告)号：US08152314B2

公开(公告)日：2012-04-10

申请号：US11916041

申请日：2006-05-22

申请人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Shin-ichi Kadowaki ,  Kiminori Mizuuchi ,  Hiroyuki Furuya ,  Kazuhisa Yamamoto

发明人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Shin-ichi Kadowaki ,  Kiminori Mizuuchi ,  Hiroyuki Furuya ,  Kazuhisa Yamamoto

IPC分类号： G03B21/00

CPC分类号： G03B21/005

摘要： A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.

摘要翻译： 本发明的显示装置（100）在其壳体的上表面具有第一开关（3）和第二开关（4），并且包括用于控制第一开关（3）的控制电路（18）和 第二开关（4）和光源（19）。 控制电路（18）进行控制，使得当从第一开关（3）被按压经过预定时间段之后按下第二开关（4）时，光源（19）被接通。 因此，本发明的显示装置（100）防止在投影视频之前将人进入投影区域，并且控制无意的启动。

公开(公告)号：US20070081220A1

公开(公告)日：2007-04-12

申请号：US10582340

申请日：2004-12-09

申请人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Akihiro Morikawa ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Toshifumi Yokoyama ,  Ken'ichi Kasazumi ,  Akihiro Morikawa ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B26/123 ,  H04N3/08 ,  H04N9/3129 ,  Y10S359/90

摘要： In a display unit which makes coherent light perform scanning on a screen to display an image, it is necessary to rotate a polygon mirror at ultrahigh speed for display of a high resolution image such as HDTV, and therefore, a high-performance polygon mirror must be employed, and further, noise and power consumption during rotation of the polygon mirror cause problems. Mirrors for multiple reflection (6a) and (6b) are inserted in a coherent light scanning optical system, whereby plural scanning lines can be obtained while one plane of the polygon mirror (5) scans one line of coherent light, leading to reduction in the rpm of the polygon mirror.

摘要翻译： 在使相干光在屏幕上进行扫描以显示图像的显示单元中，需要以超高速度旋转多面镜以显示诸如HDTV的高分辨率图像，因此，高性能多面镜必须 并且进一步地，在多面镜旋转期间的噪声和功率消耗导致问题。 多反射镜（6a）和（6b）的反射镜被插入相干光扫描光学系统中，从而可以获得多个扫描线，同时多面镜（5）的一个平面扫描一条相干光线，从而减少 在多面镜的转速。

公开(公告)号：US08350789B2

公开(公告)日：2013-01-08

申请号：US11783693

申请日：2007-04-11

申请人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Akira Kurozuka ,  Kazuhisa Yamamoto

发明人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Toshifumi Yokoyama ,  Tatsuo Itoh ,  Akira Kurozuka ,  Kazuhisa Yamamoto

IPC分类号： G09G3/34

CPC分类号： H04N9/3129 ,  G02B27/48

摘要： A 2D image display apparatus using a laser light source. By controlling the timing of a scan by a beam scan portion in response to the characteristic of a laser light source and by setting a light emitting time of the laser light source to an integral multiple of a scan cycle of the beam scan portion, it is possible to illuminate a spatial light modulator homogeneously with a laser beam. It is thus possible to display an image at high accuracy without causing a bright line, irregularities in brightness, and contrast deterioration.

摘要翻译： 使用激光光源的2D图像显示装置。 通过响应于激光光源的特性控制光束扫描部分的扫描定时，并且通过将激光光源的发光时间设定为光束扫描部分的扫描周期的整数倍，它是 可以用激光束均匀地照射空间光调制器。 因此，可以高精度地显示图像，而不会引起亮线，亮度不均匀和对比度劣化。