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1. 发明申请

US20110292350A1 2-DIMENSIONAL IMAGE DISPLAY DEVICE, ILLUMINATION LIGHT SOURCE AND EXPOSURE ILLUMINATION DEVICE 有权
标题翻译：二维图像显示装置，照明光源和曝光照明装置
公开(公告)号：US20110292350A1
公开(公告)日：2011-12-01
申请号：US13204925
申请日：2011-08-08
申请人： Kenichi KASAZUMI , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Kenichi KASAZUMI , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G03B21/14 , G02B26/10
CPC分类号： G02B27/149 , G02B17/004 , G02B26/0808 , G02B27/0905 , G02B27/0933 , G02B27/0944 , G02B27/102 , G02B27/1046 , G02B27/1093 , G02B27/145 , G03B21/14 , G03B21/2033 , G03B21/208 , G03B33/12 , H04N9/3161
摘要： A 2-dimensional beam scan unit reflects emission beams from a red laser light source, a green laser light source and a blue laser light source and scans in a 2-dimensional direction. Diffusion plates diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements. The respective spatial light modulation elements modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens so that a color image is displayed on a screen. Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise.
摘要翻译：二维光束扫描单元反射来自红色激光光源，绿色激光光源和蓝色激光光源的发射光束，并在二维方向上进行扫描。扩散板将在二维方向上扫描的各个光束扩散，将它们引入相应的空间光调制元件。各个空间光调制元件根据各种颜色的视频信号调制各个光。二向色棱镜在调制之后复用三种颜色的光，并将多路复用的光引入投影透镜，使得彩色图像显示在屏幕上。由于从射束扫描单元发射的二维光被散射以照射空间光调制元件，所以可以改变从光漫射构件出射的用于照射空间光调制元件的光束的光轴，从而有效抑制斑点噪声。

2. 发明授权

US07295583B2 Optical device, laser beam source, laser apparatus and method of producing optical device 有权
标题翻译：光学装置，激光束源，激光装置及其制造方法
公开(公告)号：US07295583B2
公开(公告)日：2007-11-13
申请号：US10712126
申请日：2003-11-13
申请人： Kazuhisa Yamamoto , Kiminori Mizuuchi , Yasuo Kitaoka , Makoto Kato
发明人： Kazuhisa Yamamoto , Kiminori Mizuuchi , Yasuo Kitaoka , Makoto Kato
IPC分类号： H01S3/10
CPC分类号： G02F1/37 , G02F1/3558 , G02F1/3775 , G02F2203/60 , H01S3/09415 , H01S3/109 , H01S3/23 , H01S5/0092 , H01S5/02 , H01S5/40 , H01S5/4087
摘要： After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a nonlinear optical effect, a highly reliable element is provided.
摘要翻译：在LiTaO 3衬底1中形成畴反转层3之后，形成光波导。通过对由此形成的光波长转换元件进行低温退火，形成稳定的质子交换层8，在高温退火时产生的折射率的升高降低，从而提供稳定的光波长转换元件。因此，相位匹配波长变得恒定，并且消除了谐波输出的变化。因此，对于利用非线性光学效应的光波长转换元件，提供了高度可靠的元件。

3. 发明授权

US07154837B2 Optical pickup and optical information recording/reproducing device 失效
标题翻译：光学拾取和光学信息记录/再现装置
公开(公告)号：US07154837B2
公开(公告)日：2006-12-26
申请号：US09870095
申请日：2001-05-30
申请人： Ken'ichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Ken'ichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G11B7/135
CPC分类号： B82Y10/00 , G02F2203/18 , G11B7/1369 , G11B7/1381
摘要： An optical pickup and an optical information recording/reproducing device are provided, each of which is capable of forming a super-resolution spot to conduct micro-mark recording, and does not undergo signal degradation due to an increased sidelobe in a reproducing operation. A variable phase filter having three regions to produce a phase difference in a radial direction is used, to provide a phase difference of π between the center region and the side regions in a recording operation, so that a super-resolution spot is formed on a recording layer of the optical disk. In a reproducing operation, a phase difference is nullified between the regions of the variable phase filter, so that a normal light spot at a diffraction limit having a smaller sidelobe is formed. The variable phase filter can be formed with a homogeneous-alignment liquid crystal element.
摘要翻译：提供了一种光学拾取器和光学信息记录/再现装置，每个光学拾取器和光学信息记录/再现装置能够形成超分辨率点以进行微标记记录，并且由于再现操作中的旁瓣增加而不会发生信号劣化。使用具有在径向上产生相位差的三个区域的可变相位滤波器，以在记录操作中提供中心区域和侧面区域之间的pi的相位差，使得在记录层的光盘。在再现操作中，可变相位滤波器的区域之间的相位差无效，从而形成具有较小旁瓣的衍射极限处的正常光斑。可变相位滤波器可以由均匀取向的液晶元件形成。

4. 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。

5. 发明授权

US06785457B2 Optical waveguide device and coherent light source and optical apparatus using the same 有权
标题翻译：光波导器件和相干光源及使用其的光学器件
公开(公告)号：US06785457B2
公开(公告)日：2004-08-31
申请号：US10211881
申请日：2002-08-01
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Ken'ichi Kasazumi , Yasuo Kitaoka
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Ken'ichi Kasazumi , Yasuo Kitaoka
IPC分类号： G02F202
CPC分类号： G02B6/125 , G02B6/42 , G02B6/4207 , G02B2006/12119 , G02F1/3775 , G11B7/125 , H01S5/026
摘要： The present invention aims to simplify a mass production process of an optical waveguide device and to reduce cost as well as noise. The optical waveguide device includes an optical waveguide whose entrance end face and exit end face are substantially parallel to each other. A SHG device is mass-produced by optically polishing an optical material substrate with a large area and then cutting the substrate. This method can mass-produce the optical waveguide devices having a uniform device length. The angle between the exit end face of the optical waveguide and the direction of an optical axis of the optical waveguide at the exit end face is not 90°, thereby reducing return light from the exit end face.
摘要翻译：本发明旨在简化光波导器件的批量生产工艺，并降低成本和噪声。光波导装置包括入射端面和出射端面基本上彼此平行的光波导。通过以大面积光学研磨光学材料基板然后切割基板来批量生产SHG器件。该方法可以批量生产具有均匀器件长度的光波导器件。光波导的出射端面与出射端面的光波导的光轴方向之间的角度不是90°，从而减少了从出射端面返回的光。

6. 发明授权

US06501868B1 Optical waveguide device, coherent light source, integrated unit, and optical pickup 有权
标题翻译：光波导器件，相干光源，集成单元和光学拾取器
公开(公告)号：US06501868B1
公开(公告)日：2002-12-31
申请号：US09687118
申请日：2000-10-13
申请人： Yasuo Kitaoka , Kenichi Kasazumi , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Yasuo Kitaoka , Kenichi Kasazumi , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G02B612
CPC分类号： G02B6/126 , G02B6/4214 , G02B2006/1204
摘要： An optical waveguide device comprises a substrate having first and second surfaces, and an optical waveguide provided on the first surface of the substrate, having a light-incoming facet and a facet inclined with respect to the optical waveguide. Guided light incident to the optical waveguide through the light-incoming facet is totally reflected off the inclined facet, and the guided light is transmitted through the first or second surface of the substrate.
摘要翻译：光波导器件包括具有第一表面和第二表面的衬底，以及设置在衬底的第一表面上的光波导，具有光入射面和相对于光波导倾斜的面。通过光入射面入射到光波导的引导光从倾斜小面全反射，并且被引导的光透过基板的第一或第二表面。

7. 发明授权

US5936985A Method for stabilizing output of higher harmonic waves and short wavelength laser beam source using the same 失效
公开(公告)号：US5936985A
公开(公告)日：1999-08-10
申请号：US527411
申请日：1995-09-13
申请人： Kazuhisa Yamamoto , Yasuo Kitaoka , Kiminori Mizuuchi , Makoto Kato
发明人： Kazuhisa Yamamoto , Yasuo Kitaoka , Kiminori Mizuuchi , Makoto Kato
IPC分类号： G02F1/35 , H01S3/109 , H01S5/026 , H01S5/06 , H01S5/0625 , H01S5/0687 , H01S5/14 , H01S5/50 , H01S3/00
CPC分类号： H01S5/0687 , G02F2001/3548 , H01S3/109 , H01S5/0092 , H01S5/02252 , H01S5/06256 , H01S5/1039 , H01S5/141
摘要： A laser beam as fundamental waves which is emitted from a distribution Bragg reflection (DBR) semiconductor laser is incident on an optical waveguide of a light wavelength conversion device in which domain-inverted regions and the optical waveguide are formed in an LiTaO.sub.3 substrate. The wavelength of the incident laser beam is then converted so as to obtain higher harmonic waves such as blue light. In the conversion, a drive current to be applied to a DBR portion of the DBR semiconductor laser is changed so as to change an oscillating wavelength of the DBR semiconductor laser, thereby matching the oscillating wavelength with a phase-matched wavelength of the light wavelength conversion device. Thus, the generation of the harmonic waves to be output is stably controlled.

8. 发明授权

US5835650A Optical apparatus and method for producing the same 失效
公开(公告)号：US5835650A
公开(公告)日：1998-11-10
申请号：US746718
申请日：1996-11-15
申请人： Yasuo Kitaoka , Kazuhisa Yamamoto , Makoto Kato , Tomoaki Uno , Kiminori Mizuuchi , Kenichi Nishiuchi
发明人： Yasuo Kitaoka , Kazuhisa Yamamoto , Makoto Kato , Tomoaki Uno , Kiminori Mizuuchi , Kenichi Nishiuchi
IPC分类号： G02B6/42 , G02F1/37 , H01S5/022 , H01S5/06 , H01S5/0625 , H01S5/0683 , H01S5/0687 , G02B6/36
CPC分类号： H01S5/0687 , G02B6/42 , G02B6/4201 , G02B6/4257 , G02B6/4272 , H01S5/06256 , G02B6/4213 , G02B6/4215 , G02B6/4224 , G02B6/4271 , G02F1/37 , H01S5/0092 , H01S5/02252 , H01S5/02476 , H01S5/0612 , H01S5/06837
摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value I.sub.0 corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value I.sub.0, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value I.sub.0, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

9. 发明授权

US5452312A Short-wavelength laser light source and optical information processing aparatus 失效
标题翻译：短波长激光光源和光信息处理装置
公开(公告)号：US5452312A
公开(公告)日：1995-09-19
申请号：US322190
申请日：1994-10-12
申请人： Kazuhisa Yamamoto , Kiminori Mizuuchi , Yasuo Kitaoka , Makoto Kato
发明人： Kazuhisa Yamamoto , Kiminori Mizuuchi , Yasuo Kitaoka , Makoto Kato
IPC分类号： G02F1/377 , G11B7/125 , H01S3/109 , H01S5/06 , H01S5/14 , H01S3/30
CPC分类号： G11B7/127 , G02F1/3775 , G11B7/126 , H01S3/109 , H01S5/0092 , H01S5/022 , H01S5/02248 , H01S5/0428 , H01S5/06216 , H01S5/141
摘要： A short-wavelength laser light source having a semiconductor laser for emitting laser light is provided. The light source includes a power supply for driving the semiconductor laser and thereby causing the semiconductor laser to emit a fundamental wave, a polarization inversion-type light-wavelength converting device for generating from the fundamental wave a harmonic wave having a shorter wavelength than the fundamental wave; and laser light feedback means for feeding light of the fundamental wave lying in a selected wavelength region back to the semiconductor laser, thereby achieving oscillation wavelength locking. Said power supply supplies to the semiconductor laser a high-frequency power containing AC components oscillating in a cycle short enough to cause the semiconductor laser to emit the fundamental wave in the form of pulsed laser light.
摘要翻译：提供了具有用于发射激光的半导体激光器的短波长激光光源。光源包括用于驱动半导体激光器并由此使半导体激光器发射基波的电源，偏振反转型光波长转换装置，用于从基波产生具有比基波短的波长的谐波波; 以及用于将位于所选波长区域中的基波的光馈送回到半导体激光器的激光反馈装置，从而实现振荡波长锁定。所述电源向半导体激光器提供包含AC组件的高频功率，所述AC组件在足够短的周期内振荡，以使得半导体激光器以脉冲激光的形式发射基波。

10. 发明申请

US20100020291A1 2-DIMENSIONAL IMAGE DISPLAY DEVICE, ILLUMINATION LIGHT SOURCE AND EXPOSURE ILLUMINATION DEVICE 有权
标题翻译：二维图像显示装置，照明光源和曝光照明装置
公开(公告)号：US20100020291A1
公开(公告)日：2010-01-28
申请号：US11917986
申请日：2006-06-15
申请人： Kenichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Kenichi Kasazumi , Yasuo Kitaoka , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G03B21/14
CPC分类号： G02B27/149 , G02B17/004 , G02B26/0808 , G02B27/0905 , G02B27/0933 , G02B27/0944 , G02B27/102 , G02B27/1046 , G02B27/1093 , G02B27/145 , G03B21/14 , G03B21/2033 , G03B21/208 , G03B33/12 , H04N9/3161
摘要： A 2-dimensional beam scan unit (2) reflects emission beams from a red laser light source (1a), a green laser light source (1b) and a blue laser light source (1c) and scans in a 2-dimensional direction. Diffusion plates (3a, 3b, 3c) diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements (5a, 5b, 5c). The respective spatial light modulation elements (5a, 5b, 5c) modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism (6) multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens (7) so that a color image is displayed on a screen (8). Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise.
摘要翻译：二维光束扫描单元（2）反射来自红色激光光源（1a），绿色激光光源（1b）和蓝色激光光源（1c）的发射光束，并在二维方向扫描。扩散板（3a，3b，3c）扩散在二维方向上扫描的各个光束，将它们引入相应的空间光调制元件（5a，5b，5c）。各个空间光调制元件（5a，5b，5c）根据各种颜色的视频信号调制各个光。分色棱镜（6）在调制之后复用三种颜色的光，并将多路复用的光引入投影透镜（7），使得彩色图像显示在屏幕（8）上。由于从射束扫描单元发射的二维光被散射以照射空间光调制元件，所以可以改变从光漫射构件出射的用于照射空间光调制元件的光束的光轴，从而有效抑制斑点噪声。

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