公开(公告)号：US08294979B2

公开(公告)日：2012-10-23

申请号：US12743646

申请日：2008-11-19

申请人： Shinichi Shikii ,  Kiminori Mizuuchi ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

发明人： Shinichi Shikii ,  Kiminori Mizuuchi ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

IPC分类号： G02F2/02 ,  H01S3/10

CPC分类号： G03B21/14 ,  G02F1/353 ,  G02F2001/3542 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/2073

摘要： A wavelength conversion device includes a laser light source that emits a fundamental wave; a wavelength conversion element that converts the fundamental wave into a second harmonic wave; and an optical system including a wavelength selective mirror that reflects the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave, while transmitting therethrough the second harmonic wave generated by wavelength conversion, wherein the optical system makes the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave enter the wavelength conversion element again to be subjected to wavelength conversion once or more than once, while being focused by the wavelength selective mirror, and the conversion efficiency in at least one of the second stage and stages subsequent to the second stage is higher than the conversion efficiency in the first stage, where the conversion efficiency in each stage is defined as: (a second harmonic wave generated in one stage)/(a square of the fundamental wave entered in the one stage).

摘要翻译： 波长转换装置包括发射基波的激光光源; 将基波转换为二次谐波的波长转换元件; 以及包括波长选择镜的光学系统，其反射通过波长转换元件传播的基波而不转换成二次谐波，同时透过其中由波长转换产生的二次谐波，其中光学系统使得基波传播 通过波长转换元件而不被转换成二次谐波，再次被波长转换元件进行一次或多于一次的波长转换，同时被波长选择镜聚焦，并且至少一个 第二级和第二级之后的级别高于第一级的转换效率，其中每级的转换效率被定义为：（一级产生的二次谐波）/（输入的基波的平方） 在一个阶段）。

公开(公告)号：US20100231862A1

公开(公告)日：2010-09-16

申请号：US12293668

申请日：2007-03-22

申请人： Tatsuo Itoh ,  Tetsuro Mizushima ,  Kenichi Kasazumi ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Tetsuro Mizushima ,  Kenichi Kasazumi ,  Kazuhisa Yamamoto

IPC分类号： G03B21/14 ,  G02B27/48 ,  F21V13/02

CPC分类号： G02B27/0994 ,  G02B19/0028 ,  G02B19/0057 ,  G02B19/009 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/2053 ,  H01S3/005 ,  H01S3/2383 ,  H01S5/4012 ,  H04N9/3129 ,  H04N9/3161

摘要： Miniaturization is realized and high-output lights are obtained by optimizing the arrangement of a laser light source unit and a homogenizer.A laser light source unit 1 has a light emission region for emitting an elliptical laser light. A focusing lens unit 2 focuses the laser light emitted from the laser light source unit 1. A rod integrator 4 has a rectangular incident surface on luminous flux focused by the focusing lens unit 2. A spatial light modulation element 7 modulates the laser light emitted from the rod integrator 4. A projection lens 8 projects the laser light modulated by the spatial light modulation element 7. The incident surface of the rod integrator 4 has a rectangular shape, and the laser light source unit 1 is arranged such that a longer axis direction of the light emission region and a longer side direction of the incident surface of the rod integrator are parallel.

摘要翻译： 实现小型化，通过优化激光光源单元和均化器的布置来获得高输出光。 激光光源单元1具有用于发射椭圆激光的发光区域。 聚焦透镜单元2对从激光光源单元1发射的激光进行聚焦。杆状积分器4在由聚焦透镜单元2聚焦的光束上具有矩形入射面。空间光调制元件7调制从 棒状积分器4.投影透镜8投影由空间光调制元件7调制的激光。杆积分器4的入射面具有矩形形状，并且激光光源单元1被布置成使得长轴方向 的发光区域和杆状积分器的入射面的长边方向平行。

公开(公告)号：US20100220293A1

公开(公告)日：2010-09-02

申请号：US12677959

申请日：2008-09-03

申请人： Tetsuro Mizushima ,  Kazuhisa Yamamoto ,  Akira Kurozuka ,  Kakuya Yamamoto ,  Keiji Sugiyama

发明人： Tetsuro Mizushima ,  Kazuhisa Yamamoto ,  Akira Kurozuka ,  Kakuya Yamamoto ,  Keiji Sugiyama

IPC分类号： G03B21/26 ,  G03B21/14

CPC分类号： H04N9/3161 ,  F21W2131/406 ,  G02B6/06 ,  G02B26/105 ,  G02B27/48 ,  G03B21/005 ,  G09F19/12 ,  H04N9/3105 ,  H04N9/3147 ,  H04N9/315

摘要： A multipurpose projector 100 is provided with a fiber bundle 6 including a plurality of cores fixedly arranged on an input plane and an output plane, laser beam sources 1r, 1g and 1b for emitting laser beams having directivities, an optical guide unit 2 to 5 for modulating the laser beams emitted from the laser beam sources 1r, 1g and 1b and guiding the modulated laser beams to the input plane of the fiber bundle 6, a projection lens 8 for enlarging and projecting the laser beams emerging from the output plane of the fiber bundle 6 to a display space 12, and a projection angle adjusting mechanism 7 disposed on the side of the output plane of the fiber bundle 6 for adjusting projection angles of the laser beams projected from the projection lens 8. Thus, the projector can have its projection space freely operated and enlarged to extend its application not only to image display, but also to illumination and decoration with colored light.

摘要翻译： 多功能投影仪100具备包括固定地设置在输入面上的多个芯线和输出面的光纤束6，用于发射具有方向性的激光束的激光束源1r，1g，1b，光导单元2〜5，用于 调制从激光束源1r，1g和1b发出的激光束，并将调制的激光束引导到光纤束6的输入平面;投影透镜8，用于放大和投射从光纤的输出平面出射的激光束 束6到显示空间12，以及设置在纤维束6的输出平面侧的投影角度调节机构7，用于调节从投影透镜8投影的激光束的投影角度。因此，投影仪可以具有 投影空间自由操作和扩大，不仅可以用于图像显示，还可用于彩色照明和装饰。

公开(公告)号：US20100195022A1

公开(公告)日：2010-08-05

申请号：US12669297

申请日：2008-07-15

申请人： Shinichi Shikii ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Akira Kurozuka ,  Takayuki Nagata ,  Kazuhisa Yamamoto

发明人： Shinichi Shikii ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Akira Kurozuka ,  Takayuki Nagata ,  Kazuhisa Yamamoto

IPC分类号： G02F1/13357 ,  F21V8/00 ,  F21V7/04

CPC分类号： G02B6/0038 ,  G02B6/0016 ,  G02B6/0018 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/0046

摘要： It is aimed to provide an LCD backlight device and liquid crystal display that can suppress light quantity loss and ensure uniform brightness.An LCD backlight device 101 has a laser light source 1 that emits laser light, and a light guiding plate 3 that transforms the laser light from the laser light source 1 into linear laser light, and transforms the linear laser light into a planar laser light, and emits the planar laser light, and the light guiding plate 3 has a third side face 6 that transforms the linear laser light into the planar laser light by reflecting the linear laser light by a plurality of reflection surfaces that are formed along the entrance direction of the linear laser light.

摘要翻译： 旨在提供可以抑制光量损失并确保均匀亮度的LCD背光装置和液晶显示器。 LCD背光装置101具有发射激光的激光光源1和将来自激光光源1的激光转换为线性激光的导光板3，并将线性激光转换成平面激光， 并且发射平面激光，并且导光板3具有第三侧面6，该第三侧面6通过反射线形激光将线性激光转换成平面激光，该多个反射面沿着入射方向 线性激光。

公开(公告)号：US20100165297A1

公开(公告)日：2010-07-01

申请号：US12600348

申请日：2008-05-14

申请人： Tetsuro Mizushima ,  Tatsuo Itoh ,  Akira Koruzuka ,  Kazuhisa Yamamoto

发明人： Tetsuro Mizushima ,  Tatsuo Itoh ,  Akira Koruzuka ,  Kazuhisa Yamamoto

IPC分类号： G03B21/14 ,  G03B21/00

CPC分类号： G03B21/00 ,  G02B26/0875 ,  G02B27/095 ,  G02B27/48 ,  G03B21/005 ,  G03B21/14 ,  G03B21/142 ,  G03B21/2033 ,  G03B21/208 ,  H04N9/3102 ,  H04N9/3161 ,  H04N9/317 ,  H04N9/3197

摘要： A laser projector is provided with a laser light source (1); a two-dimensional light modulator (6) which modulates light from the laser light source (1); and a projection optical system (7) which projects images onto a display plane (10) by expanding the light modulated by the two-dimensional light modulator 6). Shift of a display position of the two-dimensional light modulation element (6) and shift of the projection optical system (7) are performed in synchronization with each other so that display positions of the images on the display plane (10) are made substantially identical to each other. Thereby, speckle noise is sufficiently removed, and high-grade images are displayed.

摘要翻译： 激光投影仪设置有激光光源（1）; 调制来自激光光源（1）的光的二维光调制器（6）; 以及通过扩展由二维光调制器6调制的光而将图像投射到显示平面（10）上的投影光学系统（7）。 执行二维光调制元件（6）的显示位置的移动和投影光学系统（7）的移动，使得显示平面（10）上的图像的显示位置基本上相同 相同。 从而，充分除去斑点噪声，并显示高等级的图像。

公开(公告)号：US20100045894A1

公开(公告)日：2010-02-25

申请号：US12443881

申请日：2007-09-25

申请人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Takayuki Nagata ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

IPC分类号： G02F1/1335 ,  F21V7/04

CPC分类号： G02B6/0046 ,  G02B6/0025 ,  G02B6/003 ,  G02B6/0031 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/4025

摘要： Laser lights emitted from a light source 30 are diffused in a direction parallel to main surfaces of a light guide plate 9 by a one-dimensional diffuser 5. The diffused laser lights are converted to parallel lights by a first cylindrical lens 6, and are then converged in a direction of the thickness of the light guide plate 9 by a second cylindrical lens 7. The converged laser lights are reflected 90 degrees twice by a mirror 8, and are guided to a side surface of the light guide plate 9.

摘要翻译： 从光源30发射的激光通过一维散射体5在与导光板9的主表面平行的方向上扩散。扩散的激光由第一柱面透镜6转换为平行光，然后是 通过第二柱面透镜7在导光板9的厚度方向上会聚。会聚的激光由反射镜8反射90度两次，并被引导到导光板9的侧表面。

公开(公告)号：US20090310087A1

公开(公告)日：2009-12-17

申请号：US12295072

申请日：2007-04-05

申请人： Tatsuo Itoh ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

发明人： Tatsuo Itoh ,  Tetsuro Mizushima ,  Kazuhisa Yamamoto

IPC分类号： G02F1/29 ,  G03B21/14

CPC分类号： H04N9/3161 ,  G02B27/48 ,  G02F2203/12 ,  G03B21/005 ,  H04N9/3152

摘要： An object of the invention is to miniaturize a projection display device, enhance reliability of the device, and reduce speckle noise. A blue laser (1), a red laser (2), and a green laser (3) emit blue laser light, red laser light, and green laser light, respectively. A spatial light modulation element (14) modulates the blue laser light emitted from the blue laser (1), the red laser light emitted from the red laser (2), and the green laser light emitted from the green laser (3). A projection lens (15) projects the laser light modulated by the spatial light modulation element (14) onto a screen. First and second light diffusing elements (8 and 9) are arranged on an optical axis between the blue laser (1), the red laser (2), and the green laser (3); and the spatial light modulation element (14) 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： 本发明的目的在于使投影型显示装置小型化，提高装置的可靠性，减少散斑噪音。 蓝色激光（1），红色激光（2）和绿色激光（3）分别发出蓝色激光，红色激光和绿色激光。 空间光调制元件（14）调制从蓝色激光器（1）发射的蓝色激光，从红色激光器（2）发射的红色激光以及从绿色激光器（3）发出的绿色激光。 投影透镜（15）将由空间光调制元件（14）调制的激光投影到屏幕上。 第一和第二光散射元件（8和9）布置在蓝色激光器（1），红色激光器（2）和绿色激光器（3）之间的光轴上; 以及空间光调制元件（14），用于时间和电地改变蓝色激光，红色激光和绿色激光的扩散程度。

公开(公告)号：US20090257029A1

公开(公告)日：2009-10-15

申请号：US12066345

申请日：2006-09-01

申请人： Tetsuro Mizushima ,  Kazuhisa Yamamoto ,  Yoshimasa Fushimi ,  Kiminori Mizuuchi ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

发明人： Tetsuro Mizushima ,  Kazuhisa Yamamoto ,  Yoshimasa Fushimi ,  Kiminori Mizuuchi ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

IPC分类号： G03B21/14 ,  G02B27/48

CPC分类号： G03B21/005

摘要： An image forming device which has a high reliability and forms an image without speckle noise is provided.The image forming device has a light source unit that emits laser beams by a plurality of laser beam outputting sections, and a modulation element that is irradiated with the laser beams emitted from the plurality of laser beam outputting sections. At least one laser beam outputting section emits the laser beam at a different timing from the other laser beam outputting sections, and a beam angle of at least one laser beam outputting section which irradiates the modulation element is different from a beam angle of the other laser beam outputting sections which irradiate the modulation element.

摘要翻译： 提供了具有高可靠性并形成没有斑点噪声的图像的图像形成装置。 图像形成装置具有通过多个激光束输出部发射激光的光源单元和从多个激光束输出部发射的激光束照射的调制元件。 至少一个激光束输出部分在与其他激光束输出部分不同的时刻发射激光束，并且照射调制元件的至少一个激光束输出部分的光束角与另一激光束的光束角不同 照射调制元件的光束输出部。

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。

公开(公告)号：US20090135376A1

公开(公告)日：2009-05-28

申请号：US12064926

申请日：2006-08-02

申请人： Tatsuo Itoh ,  Kazuhisa Yamamoto ,  Kenichi Kasazumi ,  Tetsuro Mizushima

发明人： Tatsuo Itoh ,  Kazuhisa Yamamoto ,  Kenichi Kasazumi ,  Tetsuro Mizushima

IPC分类号： G03B21/00 ,  F21V9/00

CPC分类号： G03B21/2066 ,  G03B21/206 ,  G03B33/08 ,  H04N9/3117 ,  H04N9/3161 ,  H04N9/3164

摘要： Red light emitted from a red laser light source, green light emitted from a green laser light source and blue light emitted from a blue laser light source are incident on a first disc body of a color wheel, are transmitted or reflected in conformity with the colors of the lights in wavelength selecting regions of a second disc body every time the color wheel performs a predetermined rotation. AS being reflected by the first disc body, the lights are divided into different positions to be emitted from the color wheel and irradiated to irradiation regions successively switched by an upward or downward reciprocal movement of a mirror group.

摘要翻译： 从红色激光光源发出的红光，从绿色激光光源发出的绿色光和从蓝色激光光源发出的蓝色光入射到色轮的第一盘体上，根据颜色发射或反射 每次色轮执行预定的旋转时，在第二盘体的波长选择区域中的光。 AS由第一盘体反射，将光分成不同的位置，从色轮发射并照射到通过镜组的向上或向下往复移动而连续切换的照射区域。