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公开(公告)号：US08089581B2
公开(公告)日：2012-01-03
申请号：US11997508
申请日：2006-07-26
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Shin-ichi Kadowaki , Tetsuro Mizushima , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Shin-ichi Kadowaki , Tetsuro Mizushima , Akihiro Morikawa
IPC分类号： G02F1/13357
CPC分类号： G02B6/0018 , G02B6/0028 , G02B6/003 , G02B6/0031 , G02B6/0051 , G02B6/0068 , G02F1/133504 , G02F1/133524 , G02F1/133603 , G02F1/133606 , G02F1/133615
摘要： A display for illuminating a liquid crystal display panel with laser light of uniform light quantity distribution, and an illuminator for irradiating with laser light of uniform light quantity distribution. The display includes a liquid crystal display panel (204), laser light sources (205, 206, 207) emitting laser light having wavelengths of green, red, and blue colors, a waveguide plate (201) arranged at the back side of the liquid crystal display panel (204) and performing multiple reflection of laser light, and a diffusion plate (202) arranged at the back side of the waveguide plate (201), diffusing laser light propagating in the waveguide plate (201) and emitting the light toward the liquid crystal display panel (204).
摘要翻译： 一种用于用均匀光量分布的激光照射液晶显示面板的显示器，以及用于照射具有均匀光量分布的激光的照明器。 显示器包括液晶显示面板（204），发射具有绿色，红色和蓝色波长的激光的激光源（205,206,207），布置在液体背面的波导板（201） 水晶显示面板（204），进行激光的多次反射;以及布置在波导板（201）的背面侧的漫射板（202），使在波导板（201）中传播的激光漫射，并朝向 液晶显示面板（204）。
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公开(公告)号：US08073022B2
公开(公告)日：2011-12-06
申请号：US12769943
申请日：2010-04-29
IPC分类号： H01S3/10
CPC分类号： H01S3/0675 , H01S3/005 , H01S3/06716 , H01S3/0809 , H01S3/0826 , H01S3/09415 , H01S3/1053 , H01S3/1055 , H01S3/1618 , H04N9/3129
摘要： A laser light source device, which is capable of multi-wavelength oscillation, includes a laser light source; and a laser cavity including (i) a fiber, (ii) a first fiber grating provided at a side of the fiber toward the laser light source and having a plurality of reflection peaks, and (iii) a second fiber grating provided at a light emission end of the fiber and having a plurality of reflection peaks. Further, the laser light source includes a wavelength converter converting a fundamental wave emitted from the laser cavity into a harmonic wave; a reflection wavelength varying unit shifting reflection wavelengths of the reflection peaks of the second fiber grating; and a controller controlling phase matching conditions of the wavelength converter. As a result, intervals between adjacent reflection peaks of the first fiber grating are different from those between adjacent reflection peaks of the second fiber grating.
摘要翻译： 能够进行多波长振荡的激光光源装置包括激光光源; 以及激光腔，包括（i）光纤，（ii）设置在所述光纤的朝向所述激光光源的一侧并具有多个反射峰的第一光纤光栅，以及（iii）设置在所述光的第二光纤光栅 并具有多个反射峰。 此外，激光光源包括将从激光腔发射的基波转换为谐波的波长转换器; 反射波长变化单元，移位第二光纤光栅的反射峰的反射波长; 以及控制器，控制波长转换器的相位匹配条件。 结果，第一光纤光栅的相邻反射峰之间的间隔与第二光纤光栅的相邻反射峰之间的间隔不同。
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113.发明授权2-dimensional image display device or illumination device for obtaining uniform illumination and suppressing speckle noise 有权用于获得均匀照明并抑制斑点噪声的二维图像显示装置或照明装置公开(公告)号：US08016428B2
公开(公告)日：2011-09-13
申请号：US11917986
申请日：2006-06-15
IPC分类号： G03B21/26
CPC分类号： G02B27/149 , G02B17/004 , G02B26/0808 , G02B27/0905 , G02B27/0933 , G02B27/0944 , G02B27/102 , G02B27/1046 , G02B27/1093 , G02B27/145 , G03B21/14 , G03B21/2033 , G03B21/208 , G03B33/12 , H04N9/3161
摘要： A 2-dimensional beam scan unit reflects emission beams from a red laser light source, a green laser light source and a blue laser light source and scans in a 2-dimensional direction. Diffusion plates diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements. The respective spatial light modulation elements modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens so that a color image is displayed on a screen. Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise.
摘要翻译： 二维光束扫描单元反射来自红色激光光源，绿色激光光源和蓝色激光光源的发射光束，并在二维方向上进行扫描。 扩散板将在二维方向上扫描的各个光束扩散，将它们引入相应的空间光调制元件。 各个空间光调制元件根据各种颜色的视频信号调制各个光。 二向色棱镜在调制之后复用三种颜色的光，并将多路复用的光引入投影透镜，使得彩色图像显示在屏幕上。 由于从射束扫描单元发射的二维光被散射以照射空间光调制元件，所以可以改变从光漫射构件出射的用于照射空间光调制元件的光束的光轴， 从而有效抑制斑点噪声。
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公开(公告)号：US07969532B2
公开(公告)日：2011-06-28
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 , G02F1/1335
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： A surface illuminator has a uniform luminance over a large area by using a laser light source, has a wide color reproduction range, and is capable of suppressing a speckle noise. A liquid crystal display uses such a surface illuminator. The surface illuminator 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 causes the laser beam deflected and scanned by the beam scan section to be incident from an end face portion and causes the incident laser beam to emit from a first major surface. Further, the liquid crystal display 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 the backside in this liquid crystal display.
摘要翻译： 表面照明器通过使用激光源在大面积上具有均匀的亮度，具有宽的色彩再现范围，并且能够抑制斑点噪声。 液晶显示器使用这种表面照明器。 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，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在该液晶显示器中从背面照亮液晶显示面板的背光照明器。
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公开(公告)号：US07967452B2
公开(公告)日：2011-06-28
申请号：US12064784
申请日：2006-08-24
IPC分类号： G03B21/28
CPC分类号： G03B21/14 , G03B21/2053 , G03B21/208 , H04N9/3105 , H04N9/3129 , H04N9/315 , H04N9/3155 , H04N9/3161
摘要： A projection type display apparatus is provided that is safe even when a person looks directly into a laser beam. A laser operation control unit sets the output power of at least one laser source so that intensity A (mW/mm2) of the laser beam on at least one spatial light modulation element satisfies relationship of A
摘要翻译： 即使人们直视激光束也能够安全地投射型显示装置。 激光操作控制单元设置至少一个激光源的输出功率，使得至少一个空间光调制元件上的激光束的强度A（mW / mm2）在图像上的数值孔径B时满足A <686×B2的关系 设置照明光学系统的一侧。
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公开(公告)号：US07903325B2
公开(公告)日：2011-03-08
申请号：US12280220
申请日：2007-02-02
CPC分类号： H04N9/3129 , G02F1/37 , H01S3/0092 , H01S3/0675 , H01S3/0815 , H01S3/094015 , H01S3/09415 , H01S3/1305 , H01S3/1618 , H01S5/141 , H04N9/315 , H04N9/3161
摘要： Since the absorption of a fundamental wave by a fiber increases if it is tried to obtain a wavelength conversion light of watt-class high output, the fiber length needs to be shortened. However, since oscillation efficiency conversely decreases if the fiber length is shortened, it is difficult to obtain a high-output fundamental wave. Thus, by reflecting an excitation light incident on the fiber in the fiber, the excitation light is efficiently absorbed to amplify the fundamental wave with a high gain. Further, by shortening the fiber length, the absorption of the fundamental wave is also reduced to improve a fundamental wave output. Consequently, a wavelength converter capable of ensuring a stable high output up to watt-class is achieved.
摘要翻译： 由于如果试图获得瓦特级高输出的波长转换光，则由于光纤吸收基波而增加，所以需要缩短光纤长度。 然而，由于如果光纤长度缩短，振荡效率相反地降低，所以难以获得高输出基波。 因此，通过反射入射到光纤中的光纤上的激发光，有效地吸收激发光，以高增益放大基波。 此外，通过缩短光纤长度，也减小了基波的吸收，以改善基波输出。 因此，实现能够确保稳定的高输出到瓦特级的波长转换器。
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公开(公告)号：US07889422B2
公开(公告)日：2011-02-15
申请号：US11916372
申请日：2006-06-02
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： A two-dimensional image display device using a Yb-doped clad pump fiber 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： 使用作为激光活化物质的稀土掺杂光纤的Yb掺杂包层泵浦光纤的二维图像显示装置，与使用氧化物的情况相比，可以显着提高荧光光谱的峰值 晶体，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。
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公开(公告)号：US20100260213A1
公开(公告)日：2010-10-14
申请号：US12769943
申请日：2010-04-29
CPC分类号： H01S3/0675 , H01S3/005 , H01S3/06716 , H01S3/0809 , H01S3/0826 , H01S3/09415 , H01S3/1053 , H01S3/1055 , H01S3/1618 , H04N9/3129
摘要： The present invention concerns a laser light source device capable of multiwavelength oscillation. This laser light source device is provided with a laser light source; a laser cavity including a fiber, a first fiber grating provided at a side of the fiber toward the laser light source and having a plurality of reflection peaks, and a second fiber grating provided at a light emission end of the fiber and having a plurality of reflection peaks; a wavelength converter for converting a fundamental wave emitted from the laser cavity into a harmonic wave; a reflection wavelength varying unit capable of shifting the reflection wavelengths of the reflection peaks of the second fiber grating; and a controller for controlling phase matching conditions of the wavelength converter. Intervals between adjacent reflection peaks of the first fiber grating are different from those between adjacent reflection peaks of the second fiber grating.
摘要翻译： 本发明涉及能够进行多波长振荡的激光光源装置。 该激光光源装置设置有激光光源; 包括光纤的激光腔，设置在所述光纤的朝向所述激光光源的一侧并具有多个反射峰的第一光纤光栅，以及设置在所述光纤的发光端的第二光纤光栅，并且具有多个 反射峰; 用于将从激光腔发射的基波转换为谐波的波长转换器; 反射波长变化单元，其能够移动第二光纤光栅的反射峰的反射波长; 以及用于控制波长转换器的相位匹配条件的控制器。 第一光纤光栅的相邻反射峰之间的间隔与第二光纤光栅的相邻反射峰之间的间隔不同。
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119.发明申请WAVELENGTH CONVERSION ELEMENT, LASER LIGHT SOURCE, TWO-DIMENSIONAL IMAGE DISPLAY AND LASER PROCESSING SYSTEM 有权波长转换元件，激光光源，二维图像显示和激光加工系统公开(公告)号：US20100165452A1
公开(公告)日：2010-07-01
申请号：US11997099
申请日：2006-07-26
CPC分类号： G02F1/3558 , C30B15/00 , C30B29/30 , G02F1/3551 , G02F1/37 , G02F2202/20 , G02F2203/21
摘要： A wavelength conversion element is provided with a substrate including a nonlinear optical single crystal having a periodically poled structure, the visible light transmittance of the substrate is 85% or higher when ultraviolet light is irradiated to the substrate, and laser light having an average output of 1 W or more is outputted by shortening the wavelength of laser light having a wavelength of 640 nm to 2000 nm. By improving visible light transmission characteristics when the ultraviolet light is irradiated in this way, the breakdown of crystal can be prevented and the stabilization of output characteristics at high output can be realized. As a result, the absorption of green light induced by ultraviolet light can also be suppressed, and the saturation of output and the breakdown of crystal can be avoided.
摘要翻译： 波长转换元件设置有包括具有周期性极化结构的非线性光学单晶的基板，当对基板照射紫外光时，基板的可见光透射率为85％以上，平均输出的激光为 通过缩短波长为640nm〜2000nm的激光的波长来输出1W以上。 通过以这种方式照射紫外线时的可见光透射特性的改善，能够防止晶体的破坏，能够实现高输出的输出特性的稳定化。 结果，也可以抑制由紫外光引起的绿光的吸收，可以避免输出饱和和晶体破坏。
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公开(公告)号：US20100097674A1
公开(公告)日：2010-04-22
申请号：US12645204
申请日：2009-12-22
CPC分类号： G02B27/1053 , G02B27/1073 , G02B27/1093 , G02B27/149 , G03B21/208 , G03B33/12 , H04N9/3114 , H04N9/3129 , H04N9/315
摘要： There is provided a light source device which can miniaturize a two-dimensional image display device as small as possible. The light source device is provided with three coherent light sources (11a), (11b), and (11c) corresponding to red, blue, and green; prisms (12a) and (12c) for reflecting lights emitted from the coherent light sources (11a) and (11c); and a diffraction part (20) comprising a single volume hologram on which plural gratings are multiply-formed, which gratings diffract the light emitted from the coherent light source (11b), and the lights that are emitted from the coherent light sources (11a) and (11c) and reflected by the prisms (12a) and (12b) so that these lights propagate in the same optical path.
摘要翻译： 提供了尽可能小的使二维图像显示装置小型化的光源装置。 光源装置具有对应于红色，蓝色和绿色的三个相干光源（11a），（11b）和（11c） 用于反射从相干光源（11a）和（11c）发出的光的棱镜（12a）和（12c）; 以及衍射部分（20），其包括单个体积全息图，多个光栅被多重形成，所述光栅衍射从相干光源（11b）发射的光以及从相干光源（11a）发射的光， 和（11c）并由棱镜（12a）和（12b）反射，使得这些光在相同的光路中传播。
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