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101. 发明授权

US5652674A Method for manufacturing domain-inverted region, optical wavelength conversion device utilizing such domain-inverted region and method for fabricating such device 失效
标题翻译：制造域反转区域的方法，利用这种域反转区域的光波长转换装置及其制造方法
公开(公告)号：US5652674A
公开(公告)日：1997-07-29
申请号：US521322
申请日：1995-08-30
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G02F1/35 , G02F1/355 , G02F1/37 , G02F1/377
CPC分类号： G02F1/3775 , G02F1/3558 , G02F1/37 , G02F1/377 , G02F2001/3548
摘要： A comb-shaped electrode and a planar electrode are formed on a surface and a bottom face of a substrate. Then, a DC voltage on which a pulse voltage is superimposed is applied to the electrodes using a DC power source and a pulse power source so as to apply a DC electric field on which a pulse electric field is superimposed to the substrate. As a result, periodic domain-inverted regions are formed by applying even a small pulse electric field. Since the applied electric field is highly uniform in a face of the substrate, the domain-inverted regions having a uniform periodic structure are formed. Alternatively, after the comb-shaped electrode is covered with an insulating film, the pulse voltage is applied to the electrodes using the pulse power source so as to apply the pulse electric field to the substrate. As a result, since movement of free charges in the surface of a crystal is restrained so as to inhibit the spread of domain inversion in a horizontal direction, a uniform short-periodic domain-inverted structure is formed. According to the present invention, deep short-periodic domain-inverted regions are uniformly formed over a large area of the substrate. As a result, an optical wavelength conversion device having a short wavelength with high efficiency can be manufactured.
摘要翻译：在基板的表面和底面上形成梳状电极和平面电极。然后，使用直流电源和脉冲电源向电极施加其上叠加有脉冲电压的直流电压，以将施加脉冲电场的直流电场施加到基板上。结果，通过施加甚至小的脉冲电场来形成周期性畴反转区域。由于施加的电场在衬底的表面上高度均匀，所以形成具有均匀周期结构的畴反转区域。或者，在梳状电极被绝缘膜覆盖之后，使用脉冲电源将脉冲电压施加到电极，以将脉冲电场施加到基板。结果，由于抑制了晶体表面的游离电荷的移动，从而抑制了在水平方向上的畴反转的扩展，因此形成均匀的短周期畴反转结构。根据本发明，在衬底的大面积上均匀地形成深的短周期畴反转区域。结果，可以制造具有高效率的短波长的光波长转换装置。

102. 发明授权

US5619369A Diffracting device having distributed bragg reflector and wavelength changing device having optical waveguide with periodically inverted-polarization layers 失效
$Diffracting device having distributed bragg reflector and wavelength changing device having optical waveguide with periodically inverted-polarization layers$
标题翻译：具有分布式布拉格反射器和具有周期性反向偏振层的光波导的波长改变装置的衍射装置
公开(公告)号：US5619369A
公开(公告)日：1997-04-08
申请号：US91955
申请日：1993-07-15
申请人： Kazuhisa Yamamoto , Kiminori Mizuuchi
发明人： Kazuhisa Yamamoto , Kiminori Mizuuchi
IPC分类号： G02B6/12 , G02B6/124 , G02F1/035 , G02F1/355 , G02F1/377 , H01S5/12 , H01S5/125 , G02F1/37
CPC分类号： G02F1/3558 , G02B6/124 , G02F1/377 , G02F1/3775 , G02B2006/12173 , G02B2006/12176 , G02B2006/12183 , G02F1/035 , G02F2201/307 , G02F2203/22 , H01S5/12 , H01S5/1215 , H01S5/1228 , H01S5/125
摘要： A diffracting device consists of a substrate made of LiTaO.sub.3, an optical waveguide extending in a central upper side of the substrate for transmitting 860 nm wavelength coherent light radiated from a semiconductor laser, a plurality of gratings periodically arranged on the optical waveguide at regular intervals, and a covering layer arranged on the gratings and the optical waveguide. The optical waveguide is formed according to a proton-exchange process. The gratings are made of photoresist material having a refractive index N1=1.5 and a high workability, and the gratings are uniformly formed according to an interference-exposure process. Therefore, the photoresist material is patterned without damaging the optical waveguide with reactive ions. The covering layer is made of Ta.sub.2 O.sub.5 having a refractive index N2=2.0. Therefore, periodic change in the refractive index is generated in a periodic structure of the gratings and the covering layer, and a part of the coherent light is reflected by the periodic structure to fix the wavelength of the coherent light radiated from the semiconductor laser.
摘要翻译：衍射装置包括由LiTaO 3构成的基板，在基板的中央上侧延伸的光波导，用于透射从半导体激光器辐射的860nm波长相干光，以规则的间隔周期性地布置在光波导上的多个光栅，以及布置在光栅和光波导上的覆盖层。光波导根据质子交换过程形成。光栅由折射率N1 = 1.5的光致抗蚀剂材料制成，加工性高，并且根据干涉曝光工艺均匀地形成光栅。因此，光致抗蚀剂材料被图案化，而不损坏具有反应离子的光波导。覆盖层由折射率N2 = 2.0的Ta2O5制成。因此，在光栅和覆盖层的周期性结构中产生折射率的周期性变化，并且一部分相干光被周期性结构反射以固定从半导体激光器辐射的相干光的波长。

103. 发明授权

US5387998A Shorter wavelength light generating apparatus in which coherent light is converted into shorter wavelength light 失效
标题翻译：较短的波长发光装置，其中相干光被转换成较短波长的光
公开(公告)号：US5387998A
公开(公告)日：1995-02-07
申请号：US76666
申请日：1993-06-15
申请人： Yasuo Kitaoka , Kazuhisa Yamamoto , Kiminori Mizuuchi , Makoto Kato
发明人： Yasuo Kitaoka , Kazuhisa Yamamoto , Kiminori Mizuuchi , Makoto Kato
IPC分类号： G02F1/37 , G02F1/35 , G02F1/377 , H01S3/06 , H01S3/1055 , H01S3/109 , H01S5/06 , H01S5/065 , H01S5/068 , H01S5/14
CPC分类号： H01S3/109 , G02F1/377 , G02F2001/3548 , G02F2001/372 , H01S5/065 , H01S5/141
摘要： A shorter wavelength light generating apparatus consists of a semiconductor laser for initially radiating various modes of coherent light including a required mode of coherent light, a reflection type of diffraction grating for diffracting and reflecting the various modes of coherent light to selectively feed back the required mode of coherent light to the semiconductor laser which is induced by the coherent light fed back to dominantly radiate the required mode of coherent light, and an optical wavelength type of wavelength converting device for converting a part of the required mode of coherent light radiated from the semiconductor laser into shorter wavelength light. The required mode of coherent light not converted is radiated to the diffraction grating. Accordingly, even though the various modes of coherent light are initially radiated from the semiconductor laser, the required mode of coherent light is dominantly radiated from the semiconductor laser after a short time. Therefore, the shorter wavelength light is stably output while stabilizing the wavelength of the shorter wavelength light.
摘要翻译：较短波长的发光装置由半导体激光器组成，用于最初辐射包括所需相干光的各种相干光的各种模式，用于衍射和反射各种相干光模式的衍射光栅的反射型，以选择性地反馈所需的模式由相干光引起的相干光反射以主要辐射相干光的所需模式;以及光波长类型的波长转换装置，用于转换从半导体辐射的所需相干光的一部分模式激光进入较短波长的光。未转换的相干光的所需模式被辐射到衍射光栅。因此，尽管相干光的各种模式最初从半导体激光器辐射，但在短时间之后主要从半导体激光器辐射相干光的所需模式。因此，在稳定短波长光的波长的同时，较短波长的光稳定地输出。

104. 发明授权

US5253259A Frequency doubler and visible laser source having a heater 失效
标题翻译：具有加热器的倍频器和可见激光源
公开(公告)号：US5253259A
公开(公告)日：1993-10-12
申请号：US825124
申请日：1992-01-24
申请人： Kazuhisa Yamamoto , Tetsuo Taniuchi , Kiminori Mizuuchi
发明人： Kazuhisa Yamamoto , Tetsuo Taniuchi , Kiminori Mizuuchi
IPC分类号： G02F1/35 , G02F1/377 , H01S3/10
CPC分类号： G02F1/3775 , G02F2001/3546
摘要： A frequency doubler of the invention employs a nonlinear optical effect of stabilizing the harmonic output from the frequency doubler. The frequency doubler has an LiNbO.sub.3 substrate, domain inverted regions and a waveguide, which are formed on the substrate, and a thin-film heater formed on the waveguide by depositing Ni-Cr. The temperature of the frequency doubler is controlled by applying a current to the thin-film heater so as to heat the frequency doubler. Even if the wavelength of a semiconductor laser is changed due to change in the environmental temperature, the frequency doubler can stably be operated by changing the temperature of the frequency doubler.
摘要翻译：本发明的倍频器采用稳定来自倍频器的谐波输出的非线性光学效应。倍频器具有形成在衬底上的LiNbO 3衬底，畴反转区域和波导，以及通过沉积Ni-Cr形成在波导上的薄膜加热器。通过向薄膜加热器施加电流以加热倍频器来控制倍频器的温度。即使半导体激光器的波长由于环境温度的变化而变化，倍频器也可以通过改变倍频器的温度来稳定地工作。

105. 发明授权

US08571076B2 Laser light source, image display apparatus, and processing apparatus 有权
标题翻译：激光光源，图像显示装置和处理装置
公开(公告)号：US08571076B2
公开(公告)日：2013-10-29
申请号：US12411636
申请日：2009-03-26
申请人： Koichi Kusukame , Hiroyuki Furuya , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa , Nobuyuki Horikawa , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Koichi Kusukame , Hiroyuki Furuya , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa , Nobuyuki Horikawa , Kazuhisa Yamamoto , Shinichi Kadowaki
IPC分类号： H01S3/10
CPC分类号： H01S3/109 , G02F1/0305 , G02F1/3775 , G02F2203/60 , H01S3/09415
摘要： A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×108 Ω·cm or higher.
摘要翻译：激光光源包括产生基本激光的基波激光发生器，具有周期性极化结构的铁电晶体的波长转换元件，并将基波激光转换为具有不同波长的激光，保持部件其保持所述波长转换元件的与所述周期性极化结构的偏振方向交叉的元件表面的至少一部分，以及设置在所述保持部件和所述元件表面之间的绝缘层。绝缘层的电阻率为1×108Ω·cm以上。

106. 发明授权

US08317333B2 Method and device for converting an emission beam from a laser light source into 2-dimensional light 有权
标题翻译：用于将来自激光光源的发射光束转换为二维光的方法和装置
公开(公告)号：US08317333B2
公开(公告)日：2012-11-27
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： G03B21/26
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。

107. 发明授权

US08254415B2 Short wavelength light source and optical device 失效
标题翻译：短波长光源和光学器件
公开(公告)号：US08254415B2
公开(公告)日：2012-08-28
申请号：US12738443
申请日：2008-10-14
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuro Mizushima
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuro Mizushima
IPC分类号： H01S3/30
CPC分类号： H01S3/1022 , G03B21/2033 , G03B21/204 , G03B21/2073 , H01S3/0612 , H01S3/0627 , H01S3/08009 , H01S3/08086 , H01S3/0809 , H01S3/09415 , H01S3/10061 , H01S3/109 , H01S3/161 , H01S3/1613 , H01S3/1645 , H01S3/2383 , H04N9/3129 , H04N9/3161 , H04N9/3167
摘要： A GaN-based semiconductor laser (1) emits first laser light of a single polarization and having a first wavelength. An optical resonator (30) includes a solid-state laser medium which is excited by incidence of the laser light and which oscillates second laser light having a second wavelength different from the first wavelength. A polarization switch (6) switches over at least one of polarization directions of the first laser light and the second laser light to thereby change the wavelength of laser light to be emitted from the optical resonator (30) or the intensity ratio between a plurality of laser light to be emitted from the optical resonator (30). With the above arrangement, a plurality of laser light can be used effectively.
摘要翻译： GaN基半导体激光器（1）发射具有第一波长的单一极化的第一激光。光学谐振器（30）包括固体激光介质，该固态激光介质被激光入射并激发出具有不同于第一波长的第二波长的第二激光。偏振开关（6）切换第一激光和第二激光的偏振方向中的至少一个，从而改变要从光谐振器（30）发射的激光的波长或多个从光谐振器（30）发射的激光。通过上述配置，可以有效地使用多个激光。

108. 发明授权

US08144391B2 Wavelength converter, image display and machining apparatus 失效
标题翻译：波长转换器，图像显示和加工设备
公开(公告)号：US08144391B2
公开(公告)日：2012-03-27
申请号：US12676042
申请日：2008-08-27
申请人： Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hiroyuki Furuya
发明人： Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hiroyuki Furuya
IPC分类号： G02F2/02 , H01S3/04 , H01S3/10
CPC分类号： G02F1/3551 , G02F1/3558 , G02F2001/3546
摘要： A wavelength converter is provided with an infrared light source (1) for emitting a fundamental wave having a wavelength of 2000 nm or shorter, a wavelength conversion element (3) composed of a nonlinear optical crystal having a periodical polarization reversal structure and adapted to convert a fundamental wave emitted from the infrared light source (1) into a harmonic wave, and a heater (4) for heating the wavelength conversion element (3). The period of the polarization reversal structure is designed so that a quasi phase matching temperature of the fundamental wave and the harmonic wave is 40° C. or higher. The heater (4) heats the wavelength conversion element (3) to a temperature at which quasi phase matching is established, and the nonlinear optical crystal contains a lithium niobate or lithium tantalate including at least any one of additives Mg, In, Zn and Sc as a main component. Thus, optical damage can be suppressed and visible light absorption attributed to ultraviolet light can be reduced.
摘要翻译：波长转换器设置有用于发射波长为2000nm以下的基波的红外光源（1），由具有周期性极化反转结构的非线性光学晶体构成的波长转换元件（3），其适于转换从红外光源（1）发射的谐波的基波和用于加热波长转换元件（3）的加热器（4）。极化反转结构的周期被设计成使得基波和谐波的准相位匹配温度为40℃以上。加热器（4）将波长转换元件（3）加热到建立准相位匹配的温度，非线性光学晶体包含铌酸锂或钽酸锂，其包括添加剂Mg，In，Zn和Sc中的至少任一种作为主要组成部分。因此，可以抑制光学损伤，并且可以降低归因于紫外线的可见光吸收。

109. 发明授权

US08089581B2 Display and illuminator 有权
标题翻译：显示器和照明器
公开(公告)号：US08089581B2
公开(公告)日：2012-01-03
申请号：US11997508
申请日：2006-07-26
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Shin-ichi Kadowaki , Tetsuro Mizushima , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Shin-ichi Kadowaki , Tetsuro Mizushima , Akihiro Morikawa
IPC分类号： G02F1/13357
CPC分类号： G02B6/0018 , G02B6/0028 , G02B6/003 , G02B6/0031 , G02B6/0051 , G02B6/0068 , G02F1/133504 , G02F1/133524 , G02F1/133603 , G02F1/133606 , G02F1/133615
摘要： A display for illuminating a liquid crystal display panel with laser light of uniform light quantity distribution, and an illuminator for irradiating with laser light of uniform light quantity distribution. The display includes a liquid crystal display panel (204), laser light sources (205, 206, 207) emitting laser light having wavelengths of green, red, and blue colors, a waveguide plate (201) arranged at the back side of the liquid crystal display panel (204) and performing multiple reflection of laser light, and a diffusion plate (202) arranged at the back side of the waveguide plate (201), diffusing laser light propagating in the waveguide plate (201) and emitting the light toward the liquid crystal display panel (204).
摘要翻译：一种用于用均匀光量分布的激光照射液晶显示面板的显示器，以及用于照射具有均匀光量分布的激光的照明器。显示器包括液晶显示面板（204），发射具有绿色，红色和蓝色波长的激光的激光源（205,206,207），布置在液体背面的波导板（201）水晶显示面板（204），进行激光的多次反射;以及布置在波导板（201）的背面侧的漫射板（202），使在波导板（201）中传播的激光漫射，并朝向液晶显示面板（204）。

110. 发明授权

US08073022B2 Laser light source device and image display device 有权
标题翻译：激光光源装置和图像显示装置
公开(公告)号：US08073022B2
公开(公告)日：2011-12-06
申请号：US12769943
申请日：2010-04-29
申请人： Hiroyuki Furuya , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Hiroyuki Furuya , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： H01S3/10
CPC分类号： H01S3/0675 , H01S3/005 , H01S3/06716 , H01S3/0809 , H01S3/0826 , H01S3/09415 , H01S3/1053 , H01S3/1055 , H01S3/1618 , H04N9/3129
摘要： A laser light source device, which is capable of multi-wavelength oscillation, includes a laser light source; and a laser cavity including (i) a fiber, (ii) a first fiber grating provided at a side of the fiber toward the laser light source and having a plurality of reflection peaks, and (iii) a second fiber grating provided at a light emission end of the fiber and having a plurality of reflection peaks. Further, the laser light source includes a wavelength converter converting a fundamental wave emitted from the laser cavity into a harmonic wave; a reflection wavelength varying unit shifting reflection wavelengths of the reflection peaks of the second fiber grating; and a controller controlling phase matching conditions of the wavelength converter. As a result, intervals between adjacent reflection peaks of the first fiber grating are different from those between adjacent reflection peaks of the second fiber grating.
摘要翻译：能够进行多波长振荡的激光光源装置包括激光光源; 以及激光腔，包括（i）光纤，（ii）设置在所述光纤的朝向所述激光光源的一侧并具有多个反射峰的第一光纤光栅，以及（iii）设置在所述光的第二光纤光栅并具有多个反射峰。此外，激光光源包括将从激光腔发射的基波转换为谐波的波长转换器; 反射波长变化单元，移位第二光纤光栅的反射峰的反射波长; 以及控制器，控制波长转换器的相位匹配条件。结果，第一光纤光栅的相邻反射峰之间的间隔与第二光纤光栅的相邻反射峰之间的间隔不同。

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