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41. 发明申请

US20080232412A1 Surface-Emitting Laser and Laser Projector 有权
标题翻译：表面发射激光和激光投影机
公开(公告)号：US20080232412A1
公开(公告)日：2008-09-25
申请号：US10584077
申请日：2004-12-21
申请人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： H01S5/026 , H01S5/062
CPC分类号： H01S5/18386 , H01S3/109 , H01S5/0421 , H01S5/0425 , H01S5/0655 , H01S5/14 , H01S5/18391 , H01S5/2086 , H01S5/4062 , H01S5/423 , H01S2301/166
摘要： A surface emitting laser (100a) includes an active layer (3) disposed on a semiconductor substrate (2a), and a pair of upper and lower electrodes (5,6) for injecting carriers into the active layer (3). The plane surface of the lower electrode (6) is shaped into a star so that injection of current into the active layer (3) from the lower electrode (6) is carried out with a high density at the center of the lower electrode (6) and with a low density at its periphery part. In the surface emitting laser (100a), the density distribution of the carriers injected into the active layer corresponds to the power distribution of light inside the active layer. Thereby, hole burning due to an increase in the current density in the region of the active layer corresponding to the peripheral part of the electrode is avoided, and the transverse mode stability during high output operation is significantly enhanced to improve high-output characteristic.
摘要翻译：表面发射激光器（100a）包括设置在半导体衬底（2a）上的有源层（3）和用于将载流子注入有源层（3）的一对上下电极（5,6）。下部电极（6）的平面被成形为星形，使得从下部电极（6）向下部电极（6）的中心以高密度注入电流进入有源层（3））并且在其周边部分具有低密度。在表面发射激光器（100a）中，注入有源层的载流子的密度分布对应于有源层内的光的功率分布。因此，避免了由于与电极的周边部分相对应的有源层的区域中的电流密度的增加而导致的空穴燃烧，并且显着增强了高输出操作期间的横向模式稳定性，从而提高了高输出特性。

42. 发明授权

US07643524B2 Surface-emitting laser and laser projector 有权
标题翻译：表面发射激光和激光投影机
公开(公告)号：US07643524B2
公开(公告)日：2010-01-05
申请号：US10584077
申请日：2004-12-21
申请人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： H01S3/00
CPC分类号： H01S5/18386 , H01S3/109 , H01S5/0421 , H01S5/0425 , H01S5/0655 , H01S5/14 , H01S5/18391 , H01S5/2086 , H01S5/4062 , H01S5/423 , H01S2301/166
摘要： A surface emitting laser includes an active layer disposed on a semiconductor substrate, and a pair of upper and lower electrodes for injecting carriers into the active layer. The plane surface of the lower electrode is shaped into a star so that injection of current into the active layer from the lower electrode is carried out with a high density at the center of the lower electrode and with a low density at its periphery part. In the surface emitting laser, the density distribution of the carriers injected into the active layer corresponds to the power distribution of light inside the active layer. Thereby, hole burning due to an increase in the current density in the region of the active layer corresponding to the peripheral part of the electrode is avoided, and the transverse mode stability during high output operation is significantly enhanced to improve high-output characteristic.
摘要翻译：表面发射激光器包括设置在半导体衬底上的有源层和用于将载流子注入有源层的一对上下电极。下电极的平面被成形为星形，使得从下电极注入有源层的电流在下电极的中心处以高密度注入并在其周边部分以低密度进行。在表面发射激光器中，注入有源层的载流子的密度分布对应于有源层内的光的功率分布。因此，避免了由于与电极的周边部分相对应的有源层的区域中的电流密度的增加而导致的空穴燃烧，并且显着增强了高输出操作期间的横向模式稳定性，从而提高了高输出特性。

43. 发明授权

US07522792B2 Optical element, laser light source, and two-dimensional image forming apparatus 有权
标题翻译：光学元件，激光光源和二维图像形成装置
公开(公告)号：US07522792B2
公开(公告)日：2009-04-21
申请号：US10582341
申请日：2004-12-09
申请人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B27/0994 , G02B6/4214 , G02B19/0028 , G02B19/0052 , G03B21/2033 , G03B21/208
摘要： An optical element (10) according to the present invention is provided with a plurality of waveguides (11)˜(13) and a plurality of light path coupling parts (21), (22) coupling adjacent waveguides so as to optically couple said plural waveguides serially, wherein the paths for transmitting lights through the plural waveguides are curved at the optical path coupling parts, thereby the optical elements which is converted the incident laser light into the emitted light having uniform cross-sectional light intensity distribution can give a compact structure, further a laser light source that employs the optical element, and a two-dimensional image forming apparatus that employs the laser light source can also give a compact structure.
摘要翻译：根据本发明的光学元件（10）设置有多个波导（11）〜（13）和多个耦合相邻波导的光路耦合部分（21），（22），以便将所述多个其中通过多个波导传输光的路径在光路耦合部分弯曲，由此将入射激光转换成具有均匀横截面光强度分布的发射光的光学元件可以产生紧凑的结构进一步使用该光学元件的激光光源和采用该激光光源的二维图像形成装置也可以得到紧凑的结构。

44. 发明申请

US20070140616A1 Optical element, laser light source, and two-dimensional image forming apparatus 有权
标题翻译：光学元件，激光光源和二维图像形成装置
公开(公告)号：US20070140616A1
公开(公告)日：2007-06-21
申请号：US10582341
申请日：2004-12-09
申请人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： G02B6/42
CPC分类号： G02B27/0994 , G02B6/4214 , G02B19/0028 , G02B19/0052 , G03B21/2033 , G03B21/208
摘要： An optical element (10) according to the present invention is provided with a plurality of waveguides (11)˜(13) and a plurality of light path coupling parts (21), (22) coupling adjacent waveguides so as to optically couple said plural waveguides serially, wherein the paths for transmitting lights through the plural waveguides are curved at the optical path coupling parts, thereby the optical elements which is converted the incident laser light into the emitted light having uniform cross-sectional light intensity distribution can give a compact structure, further a laser light source that employs the optical element, and a two-dimensional image forming apparatus that employs the laser light source can also give a compact structure.
摘要翻译：根据本发明的光学元件（10）设置有多个波导（11）〜（13）和多个耦合相邻波导的光路耦合部分（21），（22），以便将所述多个其中通过多个波导传输光的路径在光路耦合部分弯曲，由此将入射激光转换成具有均匀横截面光强度分布的发射光的光学元件可以产生紧凑的结构进一步使用该光学元件的激光光源和采用该激光光源的二维图像形成装置也可以得到紧凑的结构。

45. 发明授权

US07370972B2 Two-dimensional image display device 失效
标题翻译：二维图像显示装置
公开(公告)号：US07370972B2
公开(公告)日：2008-05-13
申请号：US10584247
申请日：2004-12-24
申请人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
IPC分类号： G03B21/14 , G03B21/00 , G03B21/22 , H04N3/02 , H04N3/28 , H04N9/04 , H04N9/07
CPC分类号： G02F1/0136 , G03B21/006 , G03B21/2073 , G03B21/208
摘要： In a two-dimensional image display device, speckle noise is reduced by a simple construction. A two-dimensional image display device for displaying an image by projecting coherent light onto a projection plane is provided with at least one coherent light source (1a), (1b), (1c) for outputting coherent light, a polarization state modulator 6 for modulating at least one of a polarization state and a phase of the coherent light emitted from the coherent light source, and a birefringent diffusion plate (7) for spatially varying the phase of the coherent light emitted from the polarization state modulator. The polarization states of light spots in the respective pixels of the image displayed on the projection plane are spatially and temporally varied, thereby forming various speckle patterns.
摘要翻译：在二维图像显示装置中，通过简单的结构减少斑点噪声。用于通过将相干光投射到投影平面上来显示图像的二维图像显示装置设置有用于输出相干光的至少一个相干光源（1a），（1b），（1c），偏振状态用于调制从相干光源发射的相干光的偏振状态和相位中的至少一个的调制器6和用于空间改变从偏振状态调制器发射的相干光的相位的双折射漫射板（7）。在投影平面上显示的图像的各个像素中的光点的偏振状态在空间和时间上变化，从而形成各种散斑图案。

46. 发明申请

US20070153235A1 Two-dimensional image display device 失效
标题翻译：二维图像显示装置
公开(公告)号：US20070153235A1
公开(公告)日：2007-07-05
申请号：US10584247
申请日：2004-12-24
申请人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
IPC分类号： G03B21/14 , G02F1/03 , G02F1/07
CPC分类号： G02F1/0136 , G03B21/006 , G03B21/2073 , G03B21/208
摘要： In a two-dimensional image display device, speckle noise is reduced by a simple construction. A two-dimensional image display device for displaying an image by projecting coherent light onto a projection plane is provided with at least one coherent light source (1a), (1b), (1c) for outputting coherent light, a polarization state modulator 6 for modulating at least one of a polarization state and a phase of the coherent light emitted from the coherent light source, and a birefringent diffusion plate 7 for spatially varying the phase of the coherent light emitted from the polarization state modulator, wherein the polarization states of light spots in the respective pixels of the image displayed on the projection plane are spatially and temporally varied, thereby forming various speckle patterns.
摘要翻译：在二维图像显示装置中，通过简单的结构减少斑点噪声。用于通过将相干光投射到投影平面上来显示图像的二维图像显示装置设置有用于输出相干光的至少一个相干光源（1a），（1b），（1c），偏振状态用于调制从相干光源发射的相干光的偏振状态和相位中的至少一个的调制器6和用于空间改变从偏振状态调制器发射的相干光的相位的双折射扩散板7，其中极化在投影平面上显示的图像的各个像素中的光斑的状态在空间和时间上变化，从而形成各种斑纹图案。

47. 发明申请

US20070058135A1 Laser image display apparatus 失效
标题翻译：激光图像显示装置
公开(公告)号：US20070058135A1
公开(公告)日：2007-03-15
申请号：US10576067
申请日：2005-04-06
申请人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Ken'ichi Kasazumi , Kiminori Mizuuchi
IPC分类号： G03B21/26 , G02B5/02
CPC分类号： H04N9/3129
摘要： A light diffuser containing light diffusing elements is arranged in the most appropriate position between a spatial light modulator and an illumination optical system. Thereby, particles as light diffusing elements diffuse rays of light emitted from a laser light source. Accordingly, indefinite numbers of speckle pattern are formed so that, for example, a speckle noise which occurs on an image projected to a screen is reduced. As a result, loss of light amount after light diffusion is suppressed to small amount, and thereby a laser image display apparatus capable of displaying a bright and high-quality image having no luminosity irregularity is provided.
摘要翻译：包含光漫射元件的光漫射器被布置在空间光调制器和照明光学系统之间的最适当位置。因此，作为光漫射元件的粒子漫射从激光光源射出的光线。因此，形成不确定数量的斑纹图案，使得例如在投影到屏幕上的图像上发生的散斑噪声减小。结果，光扩散后的光量的损失被抑制到少量，从而提供能够显示不具有亮度不规则性的明亮且高质量的图像的激光图像显示装置。

48. 发明申请

US20090244405A1 LASER PROJECTION DEVICE AND LIQUID CRYSTAL DISPLAY TELEVISION 审中-公开
标题翻译：激光投影设备和液晶显示器电视
公开(公告)号：US20090244405A1
公开(公告)日：2009-10-01
申请号：US12088572
申请日：2006-09-26
申请人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
发明人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
IPC分类号： H04N5/74 , H01S3/04
CPC分类号： G03B21/16
摘要： Disclosed herein is a laser projection device which can keep the colors of red, blue, and green laser beams constant even in high ambient temperature. The laser projection device includes a red laser light source which emits a red laser beam, a temperature sensor for detecting the temperature of the red laser light source, and a radiating unit for radiating heat from the red laser light source to the outside based on the temperature of the red laser light source detected by the temperature sensor.
摘要翻译：这里公开了一种激光投射装置，即使在高环境温度下也能够保持红色，蓝色和绿色激光束的颜色恒定。激光投影装置包括发射红色激光束的红色激光光源，用于检测红色激光光源的温度的温度传感器，以及用于将红色激光光源的热量散发到外部的辐射单元，其基于由温度传感器检测的红色激光光源的温度。

49. 发明授权

US07593159B2 Display device 有权
标题翻译：显示设备
公开(公告)号：US07593159B2
公开(公告)日：2009-09-22
申请号：US10573990
申请日：2004-09-30
申请人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Kazuhisa Yamamoto
发明人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Kazuhisa Yamamoto
IPC分类号： G03B21/56
CPC分类号： H04N9/3129 , G02B27/48 , H04N5/7416
摘要： A display device of the present invention is provided with a light source (4) for emitting coherent light and displaying an image, and an image receiving part (1) comprising not less than two screens, onto which the coherent light is projected, wherein at least one of the screens constituting the image receiving part (1) is vibrated by an airflow applied to a front or rear surface of the image receiving part (1). Further, the image receiving part (1) has a function of a speaker. Thereby, when coherent light is used as a light source for display, it is possible to suppress spots of light intensity which are called speckle noise and occur due to interference of laser beams reflected at the image receiving part.
摘要翻译：本发明的显示装置设置有用于发射相干光并显示图像的光源（4）和包括不少于两个屏幕的图像接收部分（1），相干光被投射到其上，其中，构成图像接收部分（1）的屏幕中的至少一个由施加到图像接收部分（1）的前表面或后表面的气流振动。此外，图像接收部（1）具有扬声器的功能。因此，当使用相干光作为显示用光源时，可以抑制称为斑点噪声的光强度点，并且由于在图像接收部分反射的激光束的干涉而发生。

50. 发明授权

US07926950B2 Laser image display device and color image display method utilizing control of the power of plural laser beams to display a pixel 有权
标题翻译：激光图像显示装置和利用多个激光束的功率的控制来显示像素的彩色图像显示方法
公开(公告)号：US07926950B2
公开(公告)日：2011-04-19
申请号：US11916235
申请日：2006-05-29
申请人： Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Kazuhisa Yamamoto
发明人： Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Kazuhisa Yamamoto
IPC分类号： G03B21/00 , G09G5/02
CPC分类号： G09G5/026 , G03B21/2053 , G03B21/208 , G03B33/12 , G09G3/02 , G09G2320/0242
摘要： A laser image display device includes: a first laser light source capable of outputting a laser light having a first wavelength; a second laser light source capable of outputting a laser light having a second wavelength; and a color output conversion controller capable of individually controlling power of the first and the second laser light source displaying the pixels constituting an image according to an input signal. When an input signal is contained at the end point of the color reproducible region and the laser light having the first wavelength is driven substantially by a first maximum power while the laser light having the second wavelength is driven substantially by a second minimum power, the color output conversion controller displays in pixels, a color contained in the color reproducible region excluding the end point in the pixels by using the laser light of the first wavelength at a first power below the first maximum power and the laser light of the second wavelength at a second power above the second minimum power.
摘要翻译：激光图像显示装置包括：能够输出具有第一波长的激光的第一激光光源; 能够输出具有第二波长的激光的第二激光光源; 以及颜色输出转换控制器，其能够单独地控制根据输入信号显示构成图像的像素的第一和第二激光光源的功率。当输入信号被包含在可再现颜色区域的终点处并且具有第一波长的激光基本上被第一最大功率驱动，而具有第二波长的激光基本上被第二最小功率驱动时，颜色输出转换控制器以像素为单位显示包含在除了像素中的终点之外的颜色可再现区域中的颜色，其中以第一波长的第一功率低于第一最大功率的第一功率和第二波长的激光以第二功率高于第二最小功率。

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