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1. 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。

2. 发明授权

US07869120B2 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，形成极化反转结构的方法和图像显示装置
公开(公告)号：US07869120B2
公开(公告)日：2011-01-11
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： G02F1/35 , G02F2/02 , H01S3/10
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，并且在不引起晶体损坏的情况下进行高输出波长转换。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。

3. 发明申请

US20100085631A1 WAVELENGTH CONVERTER AND IMAGE DISPLAY WITH WAVELENGTH CONVERTER 有权
标题翻译：波长转换器和具有波长转换器的图像显示
公开(公告)号：US20100085631A1
公开(公告)日：2010-04-08
申请号：US12532184
申请日：2008-03-19
申请人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
IPC分类号： G02F1/37 , G02F1/35
CPC分类号： G02F1/3525 , G02F1/37 , G02F2001/3503 , H04N9/3161
摘要： Upon obtaining green light as wavelength converted light by causing infrared light to be incident on a wavelength conversion element, the absorption of the green light occurs due to the generation of ultraviolet light as sum-frequency light of the infrared light and the green light in the wavelength conversion element and the destruction of a crystal composing the wavelength conversion element occurs due to heat generated at this time. In a laser wavelength converter of the present invention, a condensed position of the infrared light in the wavelength conversion element is deviated from a position assumed to be optimal when the influence of the generated heat is ignored. Consequently, crystal destruction is suppressed, a high-efficiency wavelength conversion is enabled and high-output wavelength converted light exceeding several watts, which was difficult to attain in conventional wavelength conversion elements, is attained.
摘要翻译：当通过使红外光入射到波长转换元件上获得作为波长转换光的绿光时，由于产生紫外光而发生绿光的吸收，作为红外光和绿色光的和频光波长转换元件，并且由于此时产生的热量而产生构成波长转换元件的晶体的破坏。在本发明的激光波长转换器中，当忽略发生的热的影响时，波长转换元件中的红外光的聚光位置被假定为最佳的位置偏离。因此，可以抑制晶体破坏，能够实现高效率的波长转换，并且实现了在常规的波长转换元件中难以获得的超过几瓦特的高输出波长转换的光。

4. 发明申请

US20130032581A1 LASER SOURCE AND LASER BEAM MACHINE 有权
标题翻译：激光源和激光光束机
公开(公告)号：US20130032581A1
公开(公告)日：2013-02-07
申请号：US13641986
申请日：2011-04-13
申请人： Koichi Kusukame , Shinichi Kadowaki , Hiroyuki Furuya , Kiminori Mizuuchi , Susumu Takagi
发明人： Koichi Kusukame , Shinichi Kadowaki , Hiroyuki Furuya , Kiminori Mizuuchi , Susumu Takagi
IPC分类号： B23K26/00
CPC分类号： B23K26/06 , B23K26/0622 , B23K26/0821 , G02F1/3511 , G02F1/353 , H01S3/0092 , H01S3/06712 , H01S3/06716 , H01S3/0675 , H01S3/1024 , H01S3/1618
摘要： The present application discloses a laser source for emitting laser light onto a work-piece. The laser source includes a generator configured to generate the laser light, and an adjuster configured to adjust an output of the laser light. The adjuster situated between the generator and the work-piece reduces output density of the laser light on the work-piece.
摘要翻译：本申请公开了一种用于将激光发射到工件上的激光源。激光源包括被配置为产生激光的发生器和被配置为调节激光输出的调节器。位于发电机和工件之间的调节器降低了工件上激光的输出密度。

5. 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。

6. 发明授权

US08125703B2 Wavelength converter and image display with wavelength converter 有权
标题翻译：波长转换器和带波长转换器的图像显示
公开(公告)号：US08125703B2
公开(公告)日：2012-02-28
申请号：US12532184
申请日：2008-03-19
申请人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
IPC分类号： G02F1/37 , G02F1/35
CPC分类号： G02F1/3525 , G02F1/37 , G02F2001/3503 , H04N9/3161
摘要： Upon obtaining green light as wavelength converted light by causing infrared light to be incident on a wavelength conversion element, the absorption of the green light occurs due to the generation of ultraviolet light as sum-frequency light of the infrared light and the green light in the wavelength conversion element and the destruction of a crystal composing the wavelength conversion element occurs due to heat generated at this time. In a laser wavelength converter of the present invention, a condensed position of the infrared light in the wavelength conversion element is deviated from a position assumed to be optimal when the influence of the generated heat is ignored. Consequently, crystal destruction is suppressed, a high-efficiency wavelength conversion is enabled and high-output wavelength converted light exceeding several watts, which was difficult to attain in conventional wavelength conversion elements, is attained.
摘要翻译：当通过使红外光入射到波长转换元件上获得作为波长转换光的绿光时，由于产生紫外光而发生绿光的吸收，作为红外光和绿色光的和频光波长转换元件，并且由于此时产生的热量而产生构成波长转换元件的晶体的破坏。在本发明的激光波长转换器中，当忽略发生的热的影响时，波长转换元件中的红外光的聚光位置被假定为最佳的位置偏离。因此，可以抑制晶体破坏，能够实现高效率的波长转换，并且实现了在常规的波长转换元件中难以获得的超过几瓦特的高输出波长转换的光。

7. 发明授权

US08014429B2 Wavelength conversion laser, image display device and laser processing device 有权
标题翻译：波长转换激光，图像显示装置和激光加工装置
公开(公告)号：US08014429B2
公开(公告)日：2011-09-06
申请号：US12532213
申请日：2009-01-20
申请人： Tetsuro Mizushima , Hiroyuki Furuya , Shinichi Shikii , Koichi Kusukame , Nobuyuki Horikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Tetsuro Mizushima , Hiroyuki Furuya , Shinichi Shikii , Koichi Kusukame , Nobuyuki Horikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： H01S3/10 , G02F1/35 , G02F2/02
CPC分类号： G02F1/37 , G02B6/0028 , G02B6/0078 , G02F1/0147 , G02F1/29 , G02F2001/3503 , G02F2001/3546 , G02F2001/372 , G02F2201/17 , G02F2201/34 , G02F2203/05 , H01S5/0092 , H01S5/0687 , H04N9/3161
摘要： A wavelength conversion laser is provided with a pair of fundamental wave reflecting surfaces for reflecting a fundamental wave to define a plurality of fundamental wave paths passing a wavelength conversion element at different angles, and a control unit for controlling wavelength conversion efficiencies so that the wavelength conversion efficiency on a specific one of the plurality of fundamental wave paths extending in different directions between the pair of fundamental wave reflecting surfaces is highest.
摘要翻译：波长转换激光器设置有一对基波反射表面，用于反射基波以限定以不同角度通过波长转换元件的多个基本波径;以及控制单元，用于控制波长转换效率，使得波长转换在一对基波反射面之间沿不同方向延伸的多个基波路径中的特定一个基波波长上的效率最高。

8. 发明申请

US20100195191A1 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：US20100195191A1
公开(公告)日：2010-08-05
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： G02F1/355 , G02F1/37
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。

9. 发明授权

US08993919B2 Laser source and laser beam machine 有权
标题翻译：激光源和激光束机
公开(公告)号：US08993919B2
公开(公告)日：2015-03-31
申请号：US13641986
申请日：2011-04-13
申请人： Koichi Kusukame , Shinichi Kadowaki , Hiroyuki Furuya , Kiminori Mizuuchi , Susumu Takagi
发明人： Koichi Kusukame , Shinichi Kadowaki , Hiroyuki Furuya , Kiminori Mizuuchi , Susumu Takagi
IPC分类号： B23K26/06 , H01S3/06 , B23K26/08 , G02F1/35 , H01S3/102 , H01S3/067 , H01S3/16 , H01S3/00
CPC分类号： B23K26/06 , B23K26/0622 , B23K26/0821 , G02F1/3511 , G02F1/353 , H01S3/0092 , H01S3/06712 , H01S3/06716 , H01S3/0675 , H01S3/1024 , H01S3/1618
摘要： The present application discloses a laser source for emitting laser light onto a work-piece. The laser source includes a generator configured to generate the laser light, and an adjuster configured to adjust an output of the laser light. The adjuster situated between the generator and the work-piece reduces output density of the laser light on the work-piece.
摘要翻译：本申请公开了一种用于将激光发射到工件上的激光源。激光源包括被配置为产生激光的发生器和被配置为调节激光输出的调节器。位于发电机和工件之间的调节器降低了工件上激光的输出密度。

10. 发明授权

US08068274B2 Wavelength conversion laser device and image display device using the same 有权
标题翻译：波长转换激光装置和使用其的图像显示装置
公开(公告)号：US08068274B2
公开(公告)日：2011-11-29
申请号：US12241525
申请日：2008-09-30
申请人： Tetsuro Mizushima , Hiroyuki Furuya , Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Nobuyuki Horikawa , Shinichi Shikii , Tatsuo Itoh
发明人： Tetsuro Mizushima , Hiroyuki Furuya , Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Nobuyuki Horikawa , Shinichi Shikii , Tatsuo Itoh
IPC分类号： G02F2/02 , H01S3/10
CPC分类号： H01S3/005 , G02F1/353 , G02F2001/3542 , H01S3/0092
摘要： A wavelength conversion laser device includes a laser light source which emits a laser beam, two reflective surfaces which reflect therefrom a laser beam, a wavelength converter provided between the two reflective surfaces, which converts a laser beam into a wavelength-converted laser beam, and condensing optics which condense the laser beams to be injected between the two reflective surfaces, wherein at least one of the two reflective surfaces has a curvature for reflecting a laser beam to be re-injected into the wavelength converter between the two reflective surfaces repeatedly while forming multi paths of laser beams injected into the wavelength converter at different incident angles, and the condensing optics are arranged to disperse beam waists of the laser beams in the wavelength converter, which reciprocate between the two reflective surfaces.
摘要翻译：波长转换激光器件包括发射激光束的激光源，从其反射激光束的两个反射表面，设置在两个反射表面之间的波长转换器，其将激光束转换成波长转换的激光束;以及聚光光学器件，其将要注入的激光束聚集在两个反射表面之间，其中两个反射表面中的至少一个具有用于反射在两个反射表面之间重新注入到波长转换器中的激光束的曲率，同时形成以不同的入射角注入到波长转换器中的激光束的多路径，以及聚光光学器件被布置成分散波长转换器中的激光束的波束束，波长转换器在两个反射表面之间往复运动。

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