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公开(公告)号：US07677736B2
公开(公告)日：2010-03-16
申请号：US10568596
申请日：2005-02-24
IPC分类号： G02B26/10
CPC分类号： G03B21/28 , G02B26/101 , H04N9/3129
摘要： An illumination light source uses a beam to scan while a relatively small mirror, such as an MEMS mirror, is oscillated at or in the vicinity of the resonance frequency. In this instance, the scan angle is corrected with the use of a correction optical system for uniform illumination to be achieved.
摘要翻译： 照明光源使用光束进行扫描，而诸如MEMS镜的相对小的反射镜在共振频率处或附近振荡。 在这种情况下，通过使用用于均匀照明的校正光学系统来校正扫描角度。
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公开(公告)号：US20070120983A1
公开(公告)日：2007-05-31
申请号：US10590715
申请日：2005-02-25
IPC分类号： H04N5/228
CPC分类号： G02B27/646 , G03B5/00 , G03B21/2033 , G03B21/2073 , G03B21/28 , G03B2217/005 , H04N9/3129
摘要： A video projector of the present invention includes a laser projection unit (50) that has linear polarization short wavelength laser light sources (1)˜(3) and emits laser lights from the laser light sources, a lens system (6a) that collects the laser lights from the laser projection unit (50), a liquid crystal cell (7) that spatially modulates the collected laser lights, a camera shake correcting optical system (110) that is capable of translating vertically and horizontally on a plane that is perpendicular to the optical axis of the laser projection unit (50), a prism (24) that transmits the laser lights from the liquid crystal cell (7) and branches the light reflected by the screen (10), and a camera device (60) that can observe or capture the video image that is branched by the prism (24). The present invention provides a video projector that can prevent the camera shake and can be held in hands.
摘要翻译： 本发明的影像投影仪包括具有线偏振短波长激光光源（1）〜（3）的激光投射部（50），从激光源发射激光的透镜系统（6a） 来自激光投影单元（50）的激光，空间调制所收集的激光的液晶单元（7），能够垂直和水平地平移的照相机抖动校正光学系统（110） 相对于激光投影单元（50）的光轴，从液晶单元（7）透射激光并分支由屏幕（10）反射的光的棱镜（24），以及照相机装置（60） 其可以观察或捕获由棱镜（24）分支的视频图像。 本发明提供一种能够防止相机抖动并可以握持在手中的视频投影仪。
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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。
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公开(公告)号：US07565049B2
公开(公告)日：2009-07-21
申请号：US10582334
申请日：2004-12-09
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。
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公开(公告)号：US20070165184A1
公开(公告)日：2007-07-19
申请号：US10584074
申请日：2004-12-21
IPC分类号： G03B33/00
CPC分类号： G03B21/2033 , G03B21/2093 , G03B33/00 , H04N9/3105 , H04N9/315
摘要： Conventionally, in a display device using lasers, a blue light source having a relatively long wavelength and a red light source having a relatively short wavelength are adopted because a short-wavelength blue light source and a long-wavelength red light source cause degradation in visibility. Therefore, there are problems that an expressible color region is restricted, and large output power is required for white display. Accordingly, in a two-dimensional image display device of the present invention, the center wavelength of a red color source is set in a range from 635 nm to 655 nm and the center wavelength of a blue light source is set in a range from 420 nm to 455 nm, thereby obtaining a bright and clear image at minimum power consumption.
摘要翻译： 通常，在使用激光的显示装置中，采用具有较长波长的蓝色光源和具有较短波长的红色光源，因为短波长蓝色光源和长波长红色光源导致可见性降低 。 因此，存在可表现的颜色区域被限制的问题，并且白色显示需要大的输出功率。 因此，在本发明的二维图像显示装置中，将红色源的中心波长设定在635nm〜655nm的范围内，将蓝色光源的中心波长设定在420 nm至455nm，从而以最小功耗获得明亮清晰的图像。
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公开(公告)号：US20060227293A1
公开(公告)日：2006-10-12
申请号：US10565390
申请日：2004-07-22
IPC分类号： G03B21/26
CPC分类号： H04N9/3161 , G02B5/0221 , G02B5/0278 , G02B27/1046 , G02B27/149 , G02B27/48 , H04N9/3105 , H04N9/3152
摘要： A two-dimensional image formation apparatus according to the present invention is provided with laser sources (1a)˜(1c), diffusers (6a)˜(6c) for diffusing light, illumination optical systems for irradiating the diffusers (6a)˜(6c) with lights emitted from the laser sources (1a)˜(1c), diffuser vibration units (13a)˜(13c) for vibrating the diffusers (6a)˜(6c), and spatial light modulators (7a)˜(7c) disposed near the diffusers (6a)˜(6c), for modulating the lights emitted from the laser sources (1a)˜(1c) and diffused by the diffusers (6a)˜(6c), wherein the diffusers (6a)˜(6c) are vibrated by the diffuser vibration units (13a)˜(13c) at a velocity that satisfies a relationship, V>d×30 (millimeters/sec), which is established between the grain size d of the diffusers and the vibration speed V of the diffusers, whereby speckle noise existing in an image projected on a screen (11) can be effectively reduced.
摘要翻译： 根据本发明的二维图像形成装置设置有用于漫射光的激光源（1a）〜（1c），漫射器（6a）〜（6c），用于照射漫射器（6）的照明光学系统 a）〜（6c），其中从激光源（1a）〜（1c）发射的光，用于振动扩散器（6a）〜（6c）的扩散器振动单元（13a）〜（13c） 和设置在扩散器（6a）〜（6c）附近的空间光调制器（7a）〜（7c），用于调制从激光源（1a）〜（1c）发射并由扩散器扩散的光 （6a）〜（6c），其中所述扩散器（6a）〜（6c）以满足关系V> dx30的速度由所述扩散器振动单元（13a）〜（13c）振动（ 毫米/秒），其在扩散器的粒径d和扩散器的振动速度V之间建立，从而可以有效地减少存在于投影在屏幕（11）上的图像中的斑点噪声。
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27.发明授权公开(公告)号：US07679799B2
公开(公告)日：2010-03-16
申请号：US10568681
申请日：2005-02-24
IPC分类号： G02B26/08
CPC分类号： H04N5/74 , G02B26/101 , G02B27/48 , H04N9/3129
摘要： In a laser display displaying a video by scanning a beam from a laser light source two-dimensionally on a screen, image quality is deteriorated markedly by speckle noises induced from coherency of the light source. A known method of oscillating the screen to remove the speckles has a problem that a large-scale device is necessary and the screen cannot be chosen without any restraint. A speckle pattern that is generated can be suppressed using a beam oscillating means that oscillates a light spot on the screen at a high speed, causing a viewer to perceive a time-mean image as not having speckle noises.
摘要翻译： 在通过在屏幕上二维地扫描来自激光光源的光束来显示视频的激光显示器中，通过由光源的相干性引起的斑点噪声，图像质量显着劣化。 振荡屏幕以去除斑点的已知方法具有需要大规模装置并且无需任何限制地选择屏幕的问题。 可以使用在高速振荡屏幕上的光点的光束振荡装置来抑制所产生的散斑图案，使得观看者将时间均匀的图像感知为不具有斑点噪声。
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公开(公告)号：US07593151B2
公开(公告)日：2009-09-22
申请号：US10582340
申请日：2004-12-09
申请人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Akihiro Morikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Akihiro Morikawa , Kiminori Mizuuchi , Kazuhisa Yamamoto
IPC分类号： G02B26/08
CPC分类号： G02B26/125 , G02B26/123 , H04N3/08 , H04N9/3129 , Y10S359/90
摘要： In a display unit which makes coherent light perform scanning on a screen to display an image, it is necessary to rotate a polygon mirror at ultrahigh speed for display of a high resolution image such as HDTV, and therefore, a high-performance polygon mirror must be employed, and further, noise and power consumption during rotation of the polygon mirror cause problems.Mirrors for multiple reflection (6a) and (6b) are inserted in a coherent light scanning optical system, whereby plural scanning lines can be obtained while one plane of the polygon mirror (5) scans one line of coherent light, leading to reduction in the rpm of the polygon mirror.
摘要翻译： 在使相干光在屏幕上进行扫描以显示图像的显示单元中，需要以超高速度旋转多面镜以显示诸如HDTV的高分辨率图像，因此，高性能多面镜必须 并且进一步地，在多面镜旋转期间的噪声和功率消耗导致问题。 多反射镜（6a）和（6b）的反射镜被插入到相干光扫描光学系统中，从而可以获得多个扫描线，而多面镜（5）的一个平面扫描一条相干光，导致 多角镜的转速。
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公开(公告)号：US07474682B2
公开(公告)日：2009-01-06
申请号：US10584091
申请日：2004-12-21
IPC分类号： H01S5/00
CPC分类号： H01S5/0625 , H01S5/0287 , H01S5/0425 , H01S5/0624 , H01S5/1064 , H01S5/22
摘要： In a semiconductor laser device (10) having different facet reflectivities, an electrode disposed on a stripe ridge (107a) is divided into four electrode parts (1), (2), (3), and (4), and a larger injection current is injected to an electrode part that is closer to a light emission facet side. Further, a carrier density distribution in an active layer that is opposed to the stripe ridge can be matched to a light intensity distribution in the active layer, thereby preventing degradation in high output characteristic due to destabilization of a transverse mode and reduction in gain which are caused by spatial hole burning.
摘要翻译： 在具有不同面反射率的半导体激光器件（10）中，设置在条纹脊（107a）上的电极被分成四个电极部分（1），（2），（3）和（4） 电流被注入到更靠近发光小面侧的电极部分。 此外，与有源层相对的有源层中的载流子浓度分布可以与有源层中的光强度分布相匹配，从而防止由于横模的不稳定性而导致的高输出特性的劣化和增益的降低 造成空间孔燃烧。
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公开(公告)号：US20080225361A1
公开(公告)日：2008-09-18
申请号：US10588107
申请日：2005-01-26
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），其包括单体体积全息图，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（11）发射的光 a）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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