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1. 发明授权

US08018646B2 Wavelength conversion element, laser light source, two-dimensional image display and laser processing system 有权
标题翻译：波长转换元件，激光光源，二维图像显示和激光加工系统
公开(公告)号：US08018646B2
公开(公告)日：2011-09-13
申请号：US11997099
申请日：2006-07-26
申请人： Hiroyuki Furuya , Akihiro Morikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Hiroyuki Furuya , Akihiro Morikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto , Shinichi Kadowaki
IPC分类号： G02F1/35
CPC分类号： G02F1/3558 , C30B15/00 , C30B29/30 , G02F1/3551 , G02F1/37 , G02F2202/20 , G02F2203/21
摘要： A wavelength conversion element is provided with a substrate including a nonlinear optical single crystal having a periodically poled structure, wherein a visible light transmittance of the substrate is 85% or higher when ultraviolet light is irradiated to the substrate. Further, a laser light having an average output of 1 W or more is outputted by shortening a wavelength of inputted laser light having a wavelength of 640 nm to 2000 nm. By improving visible light transmission characteristics when the ultraviolet light is irradiated in this way, a breakdown of crystal can be prevented and a stabilization of output characteristics at high output can be realized. As a result, an absorption of green light induced by ultraviolet light can also be suppressed and a saturation of output and the breakdown of crystal can be avoided.
摘要翻译：波长转换元件设置有包括具有周期性极化结构的非线性光学单晶的衬底，其中当将紫外光照射到衬底时，衬底的可见光透射率为85％以上。此外，通过缩短波长为640nm至2000nm的输入激光的波长，输出平均输出为1W以上的激光。通过以这种方式照射紫外线时的可见光透射特性的改善，可以防止晶体的破坏，并且能够实现高输出下的输出特性的稳定化。结果，也可以抑制紫外线诱发的绿光的吸收，可以避免输出的饱和和晶体的击穿。

2. 发明申请

US20080232412A1 Surface-Emitting Laser and Laser Projector 有权
标题翻译：表面发射激光和激光投影机
公开(公告)号：US20080232412A1
公开(公告)日：2008-09-25
申请号：US10584077
申请日：2004-12-21
申请人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： H01S5/026 , H01S5/062
CPC分类号： H01S5/18386 , H01S3/109 , H01S5/0421 , H01S5/0425 , H01S5/0655 , H01S5/14 , H01S5/18391 , H01S5/2086 , H01S5/4062 , H01S5/423 , H01S2301/166
摘要： A surface emitting laser (100a) includes an active layer (3) disposed on a semiconductor substrate (2a), and a pair of upper and lower electrodes (5,6) for injecting carriers into the active layer (3). The plane surface of the lower electrode (6) is shaped into a star so that injection of current into the active layer (3) from the lower electrode (6) is carried out with a high density at the center of the lower electrode (6) and with a low density at its periphery part. In the surface emitting laser (100a), the density distribution of the carriers injected into the active layer corresponds to the power distribution of light inside the active layer. Thereby, hole burning due to an increase in the current density in the region of the active layer corresponding to the peripheral part of the electrode is avoided, and the transverse mode stability during high output operation is significantly enhanced to improve high-output characteristic.
摘要翻译：表面发射激光器（100a）包括设置在半导体衬底（2a）上的有源层（3）和用于将载流子注入有源层（3）的一对上下电极（5,6）。下部电极（6）的平面被成形为星形，使得从下部电极（6）向下部电极（6）的中心以高密度注入电流进入有源层（3））并且在其周边部分具有低密度。在表面发射激光器（100a）中，注入有源层的载流子的密度分布对应于有源层内的光的功率分布。因此，避免了由于与电极的周边部分相对应的有源层的区域中的电流密度的增加而导致的空穴燃烧，并且显着增强了高输出操作期间的横向模式稳定性，从而提高了高输出特性。

3. 发明授权

US07399084B2 Laser image display apparatus 失效
标题翻译：激光图像显示装置
公开(公告)号：US07399084B2
公开(公告)日：2008-07-15
申请号：US10576067
申请日：2005-04-06
申请人： Akihiro Morikawa , Ken′ichi Kasazumi , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Ken′ichi Kasazumi , Kiminori Mizuuchi
IPC分类号： G03B21/14
CPC分类号： H04N9/3129
摘要： A light diffuser containing light diffusing elements is arranged in the most appropriate position between a spatial light modulator and an illumination optical system. Thereby, particles as light diffusing elements diffuse rays of light emitted from a laser light source. Accordingly, indefinite numbers of speckle pattern are formed so that, for example, a speckle noise which occurs on an image projected to a screen is reduced. As a result, loss of light amount after light diffusion is suppressed to small amount, and thereby a laser image display apparatus capable of displaying a bright and high-quality image having no luminosity irregularity is provided.
摘要翻译：包含光漫射元件的光漫射器被布置在空间光调制器和照明光学系统之间的最适当位置。因此，作为光漫射元件的粒子漫射从激光光源射出的光线。因此，形成不确定数量的斑纹图案，使得例如在投影到屏幕上的图像上发生的散斑噪声减小。结果，光扩散后的光量的损失被抑制到少量，从而提供能够显示不具有亮度不规则性的明亮且高质量的图像的激光图像显示装置。

4. 发明申请

US20070081220A1 Display unit and scanning method therefor 有权
标题翻译：显示单元及其扫描方法
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。

5. 发明授权

US07565049B2 Laser light source, and two-dimensional image forming device 有权
标题翻译：激光光源，二维成像装置
公开(公告)号：US07565049B2
公开(公告)日：2009-07-21
申请号：US10582334
申请日：2004-12-09
申请人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa , Kazuhisa Yamamoto
发明人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa , Kazuhisa Yamamoto
IPC分类号： G02B6/00
CPC分类号： H01S5/4025 , H01S5/024 , H01S5/4012 , H01S5/405 , H01S5/4087 , H04N9/3129
摘要： A laser light source (10) has semiconductor lasers (1) and a waveguide tube (3) for propagating emission light from each of the semiconductor lasers (1). The semiconductor lasers are arranged on the upper end on the incident surface (31) side of the waveguide tube such that the emission light (4) from each of the semiconductor lasers enters into the waveguide tube from one end surface (31) of the waveguide tube and exits from the other end surface (32) of the waveguide tube. The structure can realize a small-sized laser light source having high output and capable of outputting emission light having uniform emission light intensity distribution.
摘要翻译：激光源（10）具有用于传播来自每个半导体激光器（1）的发射光的半导体激光器（1）和波导管（3）。半导体激光器布置在波导管的入射表面（31）侧的上端，使得来自每个半导体激光器的发射光（4）从波导的一个端面（31）进入波导管并且从波导管的另一个端面（32）离开。该结构可以实现具有高输出并且能够输出具有均匀发射光强度分布的发射光的小尺寸激光光源。

6. 发明申请

US20080297690A1 LASER WAVELENGTH CONVERSION DEVICE, METHOD FOR FORMING POLARIZATION REVERSED STRUCTURE, AND IMAGE DISPLAY DEVICE 有权
标题翻译：激光波长转换装置，形成偏振反射结构的方法和图像显示装置
公开(公告)号：US20080297690A1
公开(公告)日：2008-12-04
申请号：US12121451
申请日：2008-05-15
申请人： Koichi KUSUKAME , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa
发明人： Koichi KUSUKAME , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa
IPC分类号： G02F1/03 , G02F1/13357
CPC分类号： G02F1/3558 , G02F1/3525 , G02F1/3775
摘要： An object of the invention is to increase the beam diameter of a laser beam, and perform high-output wavelength conversion without causing crystal damage. A laser wavelength conversion device includes a laser wavelength conversion element for allowing incidence of a laser beam as a fundamental wave to convert a part of the fundamental wave laser beam into a wavelength-converted laser beam having a wavelength different from a wavelength of the fundamental wave laser beam. The laser wavelength conversion element includes a non-linear optical crystal having periodically polarization reversed portions. The polarization reversed portions are formed in such a manner that a region where a wavelength conversion efficiency is substantially uniform extends in a polarization direction of the non-linear optical crystal. The incident laser beam is converted into the wavelength-converted laser beam with the wavelength conversion efficiency.
摘要翻译：本发明的一个目的是增加激光束的光束直径，并进行高输出波长转换而不引起晶体损坏。激光波长转换装置包括激光波长转换元件，用于允许激光束作为基波的入射，以将基波激光束的一部分转换成波长不同于基波波长的波长转换激光束激光束。激光波长转换元件包括具有周期性极化反转部分的非线性光学晶体。偏振反转部分以这样的方式形成，使得波长转换效率基本均匀的区域在非线性光学晶体的偏振方向上延伸。入射激光束以波长转换效率转换为波长转换激光束。

7. 发明授权

US07304880B2 Electric switch and memory device using the same 有权
标题翻译：电动开关和使用其的记忆装置
公开(公告)号：US07304880B2
公开(公告)日：2007-12-04
申请号：US10555941
申请日：2004-05-07
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tomoya Sugita , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tomoya Sugita , Akihiro Morikawa
IPC分类号： G11C11/22
CPC分类号： G11C11/22 , H01L27/2472 , H01L45/04 , H01L45/1206 , H01L45/1226 , H01L45/1233 , H01L45/1286 , H01L45/147
摘要： An electric switch includes a ferroelectric substrate to which metal is added, a pair of electrodes provided on the ferroelectric substrate, and an electric field applying portion for changing the direction of polarization in part of the ferroelectric substrate.
摘要翻译：电开关包括添加有金属的铁电基板，设置在铁电基板上的一对电极和用于改变部分铁电体基板的极化方向的电场施加部。

8. 发明申请

US20070069263A1 Electric switch and memory device using the same 有权
公开(公告)号：US20070069263A1
公开(公告)日：2007-03-29
申请号：US10555941
申请日：2004-05-07
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tomoya Sugita , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tomoya Sugita , Akihiro Morikawa
IPC分类号： H01L29/94
CPC分类号： G11C11/22 , H01L27/2472 , H01L45/04 , H01L45/1206 , H01L45/1226 , H01L45/1233 , H01L45/1286 , H01L45/147
摘要： An electric switch includes a ferroelectric substrate to which metal is added, a pair of electrodes provided on the ferroelectric substrate, and an electric field applying portion for changing the direction of polarization in part of the ferroelectric substrate.

9. 发明授权

US06829080B2 Optical waveguide device and light source and optical apparatus using the same 有权
标题翻译：光波导器件和光源及其使用的光学器件
公开(公告)号：US06829080B2
公开(公告)日：2004-12-07
申请号：US10123892
申请日：2002-04-16
申请人： Akihiro Morikawa , Ken'ichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Akihiro Morikawa , Ken'ichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G02F202
CPC分类号： G11B7/126 , G02B6/122 , G02B2006/12126 , G02F1/377 , H01S5/0092 , H01S5/02248
摘要： An optical waveguide device is provided that can reduce external interference noise. The optical waveguide device includes a substrate, an optical waveguide formed on the substrate, a periodic polarization inversion region formed on the optical waveguide, and an optical thin film formed in a portion of the optical waveguide. The optical waveguide (refractive index: N2) and the optical thin film (refractive index: N1) differ in refractive index dispersion, and the magnitude relationship between the refractive indexes is reversed depending on wavelength. The relationship N1>N2 is established for light having a shorter wavelength, while the relationship N2>N1 is established for light having a longer wavelength.
摘要翻译：提供了可以减少外部干扰噪声的光波导装置。光波导器件包括衬底，形成在衬底上的光波导，形成在光波导上的周期性偏振反转区域和形成在光波导的一部分中的光学薄膜。光波导（折射率：N2）和光学薄膜（折射率：N1）的折射率色散不同，折射率之间的大小关系根据波长而反转。对于具有较短波长的光建立关系N1> N2，而对于具有较长波长的光则建立关系N2> N1。

10. 发明申请

US20120152892A1 METHOD FOR MANUFACTURING OPTICAL ELEMENT 审中-公开
标题翻译：制造光学元件的方法
公开(公告)号：US20120152892A1
公开(公告)日：2012-06-21
申请号：US13393180
申请日：2010-09-15
申请人： Akihiro Morikawa , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Kiminori Mizuuchi
IPC分类号： B29D11/00 , B05D5/06
CPC分类号： G02F1/3558 , G02F2001/3548
摘要： Provided is a method for manufacturing an optical element, the method including: an electrode forming step of forming metal films on the plus z face and minus z face of a ferroelectric substrate to fabricate electrodes; a periodic electrode forming step of forming the metal film on the plus z face into a periodic electrode; a polarization reversal forming step of applying a voltage between the periodic electrode and the electrode on the minus z face to form polarization-reversed regions in the ferroelectric substrate; a surface treating step of removing the electrode, the periodic electrode, and surface layers on the plus z face and minus z face of the ferroelectric substrate; and an annealing step of applying predetermined heat to the ferroelectric substrate having the surface layers removed therefrom.
摘要翻译：提供一种光学元件的制造方法，该方法包括：在强电介质基板的正z面和负z面上形成金属膜的电极形成工序，制作电极; 周期性电极形成步骤，将正z面上的金属膜形成为周期性电极; 极化反转形成步骤，在负z面上施加周期性电极与电极之间的电压，在铁电体衬底中形成极化反转区域; 表面处理步骤，去除铁电体基板的正z面和负z面上的电极，周期性电极和表面层; 以及将预定的热量施加到从其去除表面层的铁电体基板上的退火步骤。

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