公开(公告)号：US20100220294A1

公开(公告)日：2010-09-02

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： G03B21/14 ,  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。

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：US07697577B2

公开(公告)日：2010-04-13

申请号：US11812011

申请日：2007-06-14

申请人： Shinichi Shikii ,  Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

发明人： Shinichi Shikii ,  Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Tatsuo Itoh ,  Kazuhisa Yamamoto

IPC分类号： H01S3/30 ,  H01S3/10

CPC分类号： H01S3/109 ,  H01S3/0675 ,  H01S3/09415 ,  H01S3/2391 ,  H04N9/3129

摘要： A wavelength conversion apparatus capable of stably providing high output harmonic laser light is provided. The wavelength conversion apparatus comprises an end pump fiber laser 3 containing a laser activating substance, and including a reflecting surface at one end thereof and a fiber grating in the vicinity of the reflecting surface; an excitation laser light source 1 for outputting excitation laser light; an excitation laser light introduction section 4 for introducing the excitation laser light from the excitation laser light source to the fiber laser; a wavelength conversion element 5 for converting a fundamental wave generated by the fiber laser to a harmonic; and a rear reflecting surface 6 located outside the fiber laser and forming a laser cavity together with the fiber grating.

摘要翻译： 提供能够稳定地提供高输出谐波激光的波长转换装置。 波长转换装置包括：端激光光纤激光器3，其包含激光活化物质，并且在其一端包括反射表面，在反射表面附近包括光纤光栅; 用于输出激发激光的激发激光光源1; 用于将来自激发激光光源的激发激光引入到光纤激光器的激发激光导入部4; 用于将由光纤激光器产生的基波转换为谐波的波长转换元件5; 以及位于光纤激光器外侧并与光纤光栅一起形成激光腔的后反射面6。

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。

公开(公告)号：US07675950B2

公开(公告)日：2010-03-09

申请号：US12096161

申请日：2006-12-05

申请人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： H01S3/30

CPC分类号： G02B6/262 ,  G02B6/024 ,  G02B6/036 ,  G03B21/005 ,  H01S3/06712 ,  H01S3/0675 ,  H01S3/094015 ,  H01S3/09415

摘要： There has been a problem that pumping light leaks from a part having a coating at the joint of a double-clad fiber added with a rare earth and a general single-mode fiber, and heat is generated partly from the fiber by this energy thus causing deterioration of the fiber. Deterioration of a fiber due to residual excitation light can be prevented by preventing residual excitation light in a double-clad fiber from exiting to a single-mode fiber, and the reliability is enhanced. Output of oscillation light can be increased because output of excitation light is not limited. Furthermore, a laser display having a high color reproducibility can be achieved by employing a light source combining a fiber laser light source and a wavelength conversion module.

摘要翻译： 存在泵送光从在稀土添加的双包层纤维和一般单模纤维的接合处具有涂层的部分泄漏的问题，并且通过该能量部分地从纤维产生热量，从而导致 纤维变质。 通过防止双包层光纤中的残留激发光离开单模光纤，可以防止由残留激发光引起的光纤的劣化，提高可靠性。 可以增加振荡光的输出，因为激发光的输出不受限制。 此外，通过采用组合光纤激光光源和波长转换模块的光源，可以实现具有高色彩再现性的激光显示器。

公开(公告)号：US20090303417A1

公开(公告)日：2009-12-10

申请号：US12093487

申请日：2006-11-15

申请人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

发明人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

IPC分类号： F21V8/00 ,  G02F1/13357

CPC分类号： G02B5/02 ,  G02B3/0056 ,  G02B6/0028 ,  G02B6/0066 ,  G02B19/0028 ,  G02B19/0057 ,  G02B26/105 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/144 ,  G02B27/145 ,  G02B27/48 ,  G02F1/133621

摘要： The present invention provides a surface illuminator having a uniform luminance over a large area by using a laser light source, having a wide color reproduction range, and capable of suppressing a speckle noise, as well as a liquid crystal display using the same. The surface illuminator of the present invention includes the laser light source that emits a laser beam; a beam scan section that deflects and scans the laser beam; and a first plate-shaped light guide that makes the laser beam deflected and scanned by the beam scan section to be incident from an end face portion and making the incident laser beam to emit from a first major surface. Further, the liquid crystal display of the present invention includes a liquid crystal display panel and the surface illuminator, wherein the surface illuminator is used as a backlight illuminator that lights the liquid crystal display panel from backside in this liquid crystal display.

摘要翻译： 本发明通过使用具有宽的色彩再现范围并且能够抑制散斑噪声的激光源以及使用其的液晶显示器，提供了在大面积上具有均匀亮度的表面照明器。 本发明的表面照明器包括发射激光束的激光光源; 光束扫描部分，其偏转和扫描激光束; 以及第一板状光导，其使由激光束扫描部偏转和扫描的激光束从端面部入射并使入射的激光束从第一主表面发射。 此外，本发明的液晶显示器包括液晶显示面板和表面照明器，其中表面照明器用作从该液晶显示器的背面照亮液晶显示面板的背光照明器。

公开(公告)号：US20090279017A1

公开(公告)日：2009-11-12

申请号：US12090064

申请日：2006-10-11

申请人： Hiroyuki Furuya ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi

发明人： Hiroyuki Furuya ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi

IPC分类号： G02F1/1335 ,  G02F1/35 ,  H01S3/10 ,  H01S3/30

CPC分类号： G02F1/3775 ,  G02B6/4206 ,  G02B6/4214 ,  G02F1/133615 ,  G02F1/3532 ,  G02F2202/20 ,  G02F2203/21 ,  H04N9/3161

摘要： A wavelength conversion module includes: a first fundamental wave propagation optical fiber for propagating a fundamental wave emitted from a laser light source; a first wavelength conversion element, optically connected to the first fundamental wave propagation optical fiber, for converting the fundamental wave emitted from the first fundamental wave propagation optical fiber into a harmonic wave; and a first harmonic propagation optical fiber, optically connected to the first wavelength conversion element, for propagating the harmonic wave emitted from the first wavelength conversion element, wherein the core diameter of the first harmonic propagation optical fiber is 0.5 to 0.9 times as large as the core diameter of first fundamental wave propagation optical fiber.

摘要翻译： 波长转换模块包括：第一基波传播光纤，用于传播从激光光源发射的基波; 第一波长转换元件，光连接到第一基波传播光纤，用于将从第一基波传播光纤发射的基波转换成谐波; 以及第一谐波传播光纤，其与第一波长转换元件光学连接，用于传播从第一波长转换元件发射的谐波，其中一次谐波传播光纤的纤芯直径为该第一波长转换元件的核心直径的0.5至0.9倍 第一基波传播光纤的芯径。

公开(公告)号：US20090251766A1

公开(公告)日：2009-10-08

申请号：US12092694

申请日：2006-11-01

申请人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Hiroyuki Furuya ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： G02F1/35

CPC分类号： G02F1/353 ,  G02B6/02204 ,  G02F2201/305 ,  H01S3/0675 ,  H01S3/13 ,  H01S3/1317

摘要： When one tries to obtain high-output wavelength conversion light of class W, the internal temperature of a wavelength conversion element rises significantly to cause an undue variation in phase matching wavelength and thereby it is difficult to match the wavelength of a fundamental wave to the phase matching wavelength. A part of the output of the fundamental wave or pumping light propagating on a fiber is thereby absorbed by doping the fiber with a rare earth element at a set concentration, and the temperature of a fiber grating is raised by heating the fiber grating with heat produced through the absorption. Consequently, the wavelength of the fundamental wave obtained through the fiber grating by widening the grating interval is substantially matched to the phase matching wavelength which can be converted by the wavelength conversion element, and a wavelength converter ensuring a stable high output up to class W is provided.

摘要翻译： 当尝试获得等级W的高输出波长转换光时，波长转换元件的内部温度显着上升，导致相位匹配波长的不适当变化，从而难以将基波的波长与相位相匹配 匹配波长。 因此，在光纤上传播的基波或泵浦光的输出的一部分被吸收，通过用设定浓度的稀土元素掺杂光纤，并且通过用产生的热量加热光纤光栅来提高光纤光栅的温度 通过吸收。 因此，通过光栅间隔扩大而通过光纤光栅获得的基波的波长基本上与可由波长转换元件转换的相位匹配波长相匹配，并且确保稳定的高输出达到等级W的波长转换器是 提供。

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。

公开(公告)号：US20090141753A1

公开(公告)日：2009-06-04

申请号：US11916372

申请日：2006-06-02

申请人： Hiroyuki Furuya ,  Tetsuro Mizushima ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Hiroyuki Furuya ,  Tetsuro Mizushima ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： H01S3/10

CPC分类号： H01S3/06754 ,  G09G3/002 ,  G09G5/02 ,  G09G2320/0242 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/10092 ,  H01S3/1618

摘要： There has been a problem that interference noise called speckle noise occurs in a two-dimensional image display device using laser, and there is no applicable green light source although the speckle noise can be reduced by using a multi-wavelength light source. The present invention adopts a Yb-doped clad pump fiber (103) which is a rare-earth-doped fiber as a laser activation substance, whereby a peak of a fluorescence spectrum can be significantly increased as compared with a case of using an oxide crystal, and a variation width of an oscillation wavelength can be increased. Further, since the rare-earth-doped fiber is used as a fiber amplifier without providing laser mirrors at both ends thereof, control for a resonator length, which has been required in a conventional device (wherein an oxide crystal is used as a laser medium), is dispensed with, and thereby high-speed wavelength control is achieved, resulting in reduction in speckle noise when it is mounted on a two-dimensional image display device.

摘要翻译： 存在在使用激光的二维图像显示装置中发生的称为斑点噪声的干扰噪声的问题，尽管通过使用多波长光源可以减少散斑噪声，但是不存在适用的绿色光源。 本发明采用作为激光活化物质的稀土掺杂光纤的Yb掺杂包层泵浦光纤（103），与使用氧化物晶体的情况相比，可以显着提高荧光光谱的峰值 ，并且可以增加振荡波长的变化宽度。 此外，由于稀土掺杂光纤被用作光纤放大器而不在其两端提供激光反射镜，所以在常规器件（其中氧化物晶体被用作激光介质）中所需要的谐振器长度的控制 ），从而实现高速波长控制，从而在安装在二维图像显示装置上时散斑噪声降低。