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公开(公告)号：US20130329276A1
公开(公告)日：2013-12-12
申请号：US14000499
申请日：2012-04-02
IPC分类号： H01S3/00
CPC分类号： H01S3/0092 , G03B21/204 , H01S3/005 , H01S3/025 , H01S3/0602 , H01S3/0621 , H01S3/08 , H01S3/109 , H01S3/1673 , H01S3/2391
摘要： The present application discloses a wavelength conversion device. The wavelength conversion device includes a light source for generating excitation light, a laser medium for generating fundamental light from the excitation light, a resonator mirror for forming a resonator for the fundamental light in cooperation with the laser medium, and a wavelength convertor for converting wavelength from the fundamental light into harmonic light. The wavelength convertor includes a first end surface inclined by an angle θ from a surface orthogonal to an optical axis of the resonator and a second end surface parallel to the first end surface.
摘要翻译： 本申请公开了一种波长转换装置。 波长转换装置包括用于产生激发光的光源，用于从激发光产生基本光的激光介质，用于与激光介质一起形成用于基本光的谐振器的谐振镜;以及用于转换波长的波长转换器 从基础光到谐波光。 波长转换器包括从与谐振器的光轴正交的表面倾斜角度θ的第一端表面和平行于第一端面的第二端表面。
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公开(公告)号：US08339697B2
公开(公告)日：2012-12-25
申请号：US12936747
申请日：2010-02-25
申请人： Nobuyuki Horikawa , Hiroyuki Furuya , Tetsuro Mizushima , Koichi Kusukame , Tomoya Sugita , Kazuhisa Yamamoto
发明人： Nobuyuki Horikawa , Hiroyuki Furuya , Tetsuro Mizushima , Koichi Kusukame , Tomoya Sugita , Kazuhisa Yamamoto
CPC分类号： G02F1/3501 , G02F2001/3542 , G02F2001/3548 , G02F2201/17 , G02F2203/12 , G02F2203/60
摘要： A wavelength conversion laser light source includes a fundamental wave laser light source (1) to generate a fundamental wave; a first mirror and a second mirror (4, 5), arranged so as to oppose each other; a wavelength conversion element (3) which is arranged between the first mirror and the second mirror and converts the wavelength of the fundamental wave; and a temperature control portion (8) to control the temperature of the wavelength conversion element. A portion of the fundamental wave is wavelength-converted in the wavelength conversion element, and moreover the fundamental wave which is not wavelength-converted is reflected by the first mirror and the second mirror and is repeatedly incident on the wavelength conversion element and is wavelength-converted, and the temperature control portion is arranged so as to be in contact with the wavelength conversion element, and the light quantity of the fundamental wave incident on the temperature control portion is reduced by a fundamental wave absorption portion (18).
摘要翻译： 波长转换激光光源包括产生基波的基波激光光源（1）; 布置成彼此相对的第一反射镜和第二反射镜（4,5）; 布置在第一反射镜和第二反射镜之间的波长转换元件（3），并转换基波的波长; 和用于控制波长转换元件的温度的温度控制部分（8）。 基波的一部分在波长转换元件中进行波长转换，此外，不进行波长转换的基波被第一反射镜和第二反射镜反射，并且重复入射到波长转换元件上， 并且温度控制部分布置成与波长转换元件接触，并且入射到温度控制部分上的基波的光量被基波吸收部分（18）减小。
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公开(公告)号：US08264636B2
公开(公告)日：2012-09-11
申请号：US12596616
申请日：2008-04-10
IPC分类号： G02F1/1335
CPC分类号： G02B27/145 , G02B27/106 , G02B27/144 , G02F1/133605 , G02F1/133611 , G02F1/13362 , G02F2001/133623 , G02F2203/24 , G02F2203/28 , G02F2203/58 , G09G3/3406 , G09G2320/0233 , G09G2320/066 , G09G2360/16
摘要： Provided are a laser backside irradiation device and a liquid crystal display device reducing a thickness of the respective device and improving a contrast while making a luminance distribution substantially uniform. The laser backside irradiation device includes a laser light source, a splitting optical system splitting laser light emitted from the laser light source into a plurality of laser beams, and a plurality of illumination optical systems illuminating a liquid crystal panel for two-dimensionally modulating a light intensity from a backside thereof, wherein the illumination optical systems expand the laser beams split by the splitting optical system to illuminate divided regions on the liquid crystal panel, respectively.
摘要翻译： 提供了一种激光背照射装置和液晶显示装置，其使得各个装置的厚度减小并且在使亮度分布基本均匀的同时提高对比度。 激光背照射装置包括激光光源，将从激光光源发射的激光分割为多个激光束的分束光学系统，以及照射用于二维调制光的液晶面板的多个照明光学系统 其中照明光学系统扩展由分束光学系统分裂的激光束，以分别照射液晶面板上的分割区域。
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公开(公告)号：US08192030B2
公开(公告)日：2012-06-05
申请号：US12531769
申请日：2008-03-14
IPC分类号： G03B21/00
CPC分类号： G02B27/48 , G02B3/0006 , G03B21/14 , G03B21/2033 , G03B21/208 , H04N9/3102 , H04N9/3152 , H04N9/3161
摘要： A laser illuminating device and an image display device are provided to enable a removal of speckle noises in a diffraction field and an image field, to uniformly illuminate an illumination plane, and to realize miniaturization. The laser illuminating device 100 includes a laser light source 3 and a first lens 1 including a plurality of microlenses 10, each having a predetermined numerical aperture in an in-plane direction, and each of the microlenses 10 being adapted to expand laser light emitted from the laser light source 3 to thereby superimpose the laser light transmitted through each of the microlenses 10. The laser illuminating device 100 also includes a second lens 2 having an effective diameter larger than an effective diameter of the first lens 1, and compensating for a divergence angle of the laser light expanded by each of the plurality of the microlenses 10.
摘要翻译： 提供了激光照明装置和图像显示装置，以便能够消除衍射场和图像场中的斑点噪声，以均匀地照射照明平面，并实现小型化。 激光照明装置100包括激光光源3和包括多个微透镜10的第一透镜1，每个微透镜10在面内方向上具有预定的数值孔径，并且每个微透镜10适于扩展从 激光光源3，从而叠加透过每个微透镜10的激光。激光照明装置100还包括具有大于第一透镜1的有效直径的有效直径的第二透镜2，并补偿发散度 激光的角度由多个微透镜10中的每一个扩大。
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85.发明授权公开(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
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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公开(公告)号：US07997737B2
公开(公告)日：2011-08-16
申请号：US12295072
申请日：2007-04-05
CPC分类号： H04N9/3161 , G02B27/48 , G02F2203/12 , G03B21/005 , H04N9/3152
摘要： A projection display device enhances reliability and reduces speckle noise. A blue laser, a red laser, and a green laser emit blue laser light, red laser light, and green laser light, respectively. A spatial light modulation element modulates the blue laser light emitted from the blue laser, the red laser light emitted from the red laser, and the green laser light emitted from the green laser. A projection lens projects the laser light modulated by the spatial light modulation element onto a screen. First and second light diffusing elements are arranged on an optical axis between the blue laser, the red laser, and the green laser, and the spatial light modulation element to change the degree of diffusion of the blue laser light, the red laser light, and the green laser light temporally and electrically.
摘要翻译： 投影显示装置增强可靠性并减少斑点噪声。 蓝色激光，红色激光和绿色激光分别发出蓝色激光，红色激光和绿色激光。 空间光调制元件调制从蓝色激光发射的蓝色激光，从红色激光发射的红色激光以及从绿色激光发出的绿色激光。 投影透镜将由空间光调制元件调制的激光投影到屏幕上。 第一和第二光漫射元件布置在蓝色激光器，红色激光器和绿色激光器之间的光轴上，以及空间光调制元件，以改变蓝色激光，红色激光和 绿色激光时间和电气。
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87.发明授权Light source, light source device, laser image forming device and integrated circuit 有权光源，光源装置，激光成像装置及集成电路公开(公告)号：US07873087B2
公开(公告)日：2011-01-18
申请号：US11995257
申请日：2006-07-11
申请人： Akihiro Morikawa , Ken'ichi Kasazumi , Tetsuro Mizushima , Kazuhisa Yamamoto , Shin-ichi Kadowaki
发明人： Akihiro Morikawa , Ken'ichi Kasazumi , Tetsuro Mizushima , Kazuhisa Yamamoto , Shin-ichi Kadowaki
IPC分类号： H01S3/00
CPC分类号： H01S5/0683 , H01S5/024 , H01S5/02407 , H01S5/06825 , H01S5/4093 , H04N9/3105 , H04N9/3155 , H04N9/3161
摘要： The light sources according to the present invention include a laser oscillator including a semiconductor laser, a drive circuit for the semiconductor laser, an ACC circuit, an APC circuit, and a switch, and a starting drive current storage device, and is controlled in such a manner that the driving current at the start of the laser driving be always constant, and after the start of the lighting, it is switched to the APC operation to carry out the power control of the laser light output.
摘要翻译： 根据本发明的光源包括激光振荡器，其包括半导体激光器，用于半导体激光器的驱动电路，ACC电路，APC电路和开关，以及起动驱动电流存储装置，并且被控制 激光驱动开始时的驱动电流总是恒定的方式，并且在点亮开始之后，切换到APC操作以执行激光输出的功率控制。
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公开(公告)号：US07852731B2
公开(公告)日：2010-12-14
申请号：US11885416
申请日：2006-02-22
IPC分类号： G09B7/00
CPC分类号： G11B7/00781 , G11B7/0065 , G11B7/09 , G11B7/24044
摘要： Disclosed is an arrangement that enables to keep a relative positional relation between a beam for servo control and a beam for information recording/reproduction constant concerning focusing control and tracking control, even if the two beams are different from each other. An optical storage medium has a reflection surface for reflecting a first beam having a first wavelength, and reflecting a second beam having a second wavelength different from the first wavelength; and an information storage layer for recording information as an interference pattern by incidence of the first beam, or reproducing the information from a wave surface based on the interference pattern. The reflection surface is formed with plural marks or guide grooves usable in a tracking operation or a focusing operation by irradiation of the second beam. The information storage layer is partially formed, in advance, with a reference interference pattern which is reproduced when the first beam is irradiated, and which is used as a reference for correcting the relative positional relation between the first beam and the second beam.
摘要翻译： 公开了一种能够保持用于伺服控制的光束和用于关于聚焦控制和跟踪控制的信息记录/再现的光束之间的相对位置关系的布置，即使两个光束彼此不同。 光学存储介质具有用于反射具有第一波长的第一光束的反射表面，并且反射具有不同于第一波长的第二波长的第二光束; 以及信息存储层，用于通过第一光束的入射记录信息作为干涉图案，或者基于干涉图案从波面再现信息。 反射面形成有多个标记或引导槽，可用于通过第二光束照射的跟踪操作或聚焦操作。 信息存储层预先以照射第一光束时再现的参考干涉图案部分地形成，并且用作用于校正第一光束和第二光束之间的相对位置关系的参考。
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公开(公告)号：US20100238959A1
公开(公告)日：2010-09-23
申请号：US12682378
申请日：2008-10-03
IPC分类号： H01S3/109
CPC分类号： H01S3/109 , G02B6/0026 , G02B6/0028 , G02B6/003 , G02B6/0066 , G02B6/0068 , G02B6/0076 , G02F1/133621 , H01S3/0619 , H01S3/08059 , H01S3/08086 , H01S3/09415 , H01S3/101 , H04N9/3158 , H04N9/3161
摘要： A semiconductor laser light source 10 emits a laser beam for pumping. An optical resonator 2 includes a solid laser crystal 15 to be excited by the incident of a laser beam to oscillate a fundamental wave 20 and a pair of fundamental wave reflective coats 14, 16 arranged at the opposite sides of the solid laser crystal 15. A wavelength conversion element 18 converts the fundamental wave 20 into a plurality of harmonics 21, 22. The wavelength conversion element 18 is so arranged in the optical resonator 2 that the optical axis of at least one of the plurality of harmonics 21, 22 generated in the optical resonator 2 is made different from that of the fundamental wave 20 and the at least one harmonic 22 whose optical axis is made different is output substantially in the same direction as the other harmonic 21. By this construction, it is possible to stabilize a harmonic output and utilize a plurality of harmonics without increasing the number of parts.
摘要翻译： 半导体激光光源10发射用于泵浦的激光束。 光学谐振器2包括通过激光束的入射而激发的固体激光晶体15，以振荡基波20和布置在固体激光晶体15的相对侧的一对基波反射涂层14,16。 波长转换元件18将基波20转换成多个谐波21,22。波长转换元件18被布置在光学谐振器2中，使得在该谐振器2中产生的多个谐波21,22中的至少一个的光轴 光谐振器2与基波20的不同，并且使光轴不同的至少一个谐波22基本上与其他谐波21相同的方向输出。通过这种结构，可以稳定谐波 输出并利用多个谐波而不增加部件的数量。
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公开(公告)号：US20100231861A1
公开(公告)日：2010-09-16
申请号：US12301904
申请日：2007-05-23
IPC分类号： G03B21/14
CPC分类号： G02B27/48 , G02B3/0037 , G02B27/1046 , G02B27/1053 , G02B27/145 , G03B21/2033 , G03B21/28 , H04N9/3129 , H04N9/3161
摘要： An image display apparatus is provided with a laser light source, a spatial light modulation device for modulating the laser light emitted from the laser light source, a display surface for displaying the modulated light, an optical pixel aperture enlarging member for distributing the luminance of the laser light while introducing the laser light to apertures of pixels of the spatial light modulation device; and a display pixel aperture enlarging portion for optically enlarging the modulated light by the apertures of the pixels of the spatial light modulation device corresponding to pixels of an image to be displayed on the display surface. The luminance of a partial area of each pixel of the image displayed on the display surface is controlled to be below the threefold of an average value of the luminance in the area of the entire pixel by the optical pixel aperture enlarging member and the display pixel aperture enlarging portion, thereby accomplishing speckle noise reduction and an improvement of light utilization efficiency.
摘要翻译： 图像显示装置设置有激光光源，用于调制从激光源发射的激光的空间光调制装置，用于显示调制光的显示表面，用于分配亮度的光学像素孔径扩大部件 激光，同时将激光引入空间光调制装置的像素孔; 以及显示像素孔径扩大部分，用于通过对应于要显示在显示表面上的图像的像素的空间光调制装置的像素的孔光学地放大调制光。 通过光学像素孔径扩大构件和显示像素孔径将显示在显示面上的图像的每个像素的部分区域的亮度控制在低于整个像素的区域的亮度的平均值的三倍 扩大部分，从而实现斑点噪声降低和光利用效率的提高。
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