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公开(公告)号：US06351295B2
公开(公告)日：2002-02-26
申请号：US09727541
申请日：2000-12-04
申请人： Takashi Kakuda , Masaharu Deguchi , Futoshi Yamasaki , Takesuke Maruyama , Naohiro Konuma , Yutaka Matsuda
发明人： Takashi Kakuda , Masaharu Deguchi , Futoshi Yamasaki , Takesuke Maruyama , Naohiro Konuma , Yutaka Matsuda
IPC分类号： G02F11335
CPC分类号： H04N9/315 , G02B27/0927 , G02B27/0961 , G02B27/0983 , H04N5/7441 , H04N9/3105
摘要： A projection type liquid crystal display device using liquid crystal display elements, which has a light source; illumination optics having a function of irradiating a plane to be irradiated with light emitted by the light source; and liquid crystal display elements modulating light; projection optics for projecting light exiting from the liquid crystal display elements; wherein the illumination optics include at least an elliptic mirror and a spherical mirror, and the illumination optics include further a first lens array and a second lens array, in which a plurality of lenses are arranged perpendicularly to an optical axis, from the light source side; and a condenser lens for irradiating the liquid crystal display elements with light after exit from the second lens array with a high efficiency. In this way it is possible to realize a bright projection type liquid crystal display device having a small size and a good image quality performance.
摘要翻译： 一种使用具有光源的液晶显示元件的投影型液晶显示装置; 具有照射由光源发出的光照射平面的功能的照明光学元件; 和调制光的液晶显示元件; 用于投射从液晶显示元件出射的光的投影光学元件; 其中所述照明光学器件至少包括椭圆镜和球面镜，并且所述照明光学器件还包括第一透镜阵列和第二透镜阵列，其中多个透镜垂直于光轴布置在所述光源侧 ; 以及聚光透镜，用于以高效率从第二透镜阵列出射之后用光照射液晶显示元件。 以这种方式，可以实现具有小尺寸和良好图像质量性能的亮投影型液晶显示装置。
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公开(公告)号：US07232227B2
公开(公告)日：2007-06-19
申请号：US11061663
申请日：2005-02-22
申请人： Futoshi Yamasaki , Nobuo Masuoka , Masahiko Yatsu
发明人： Futoshi Yamasaki , Nobuo Masuoka , Masahiko Yatsu
CPC分类号： H04N9/315 , G03B21/2033 , G03B37/04 , H04N5/7441 , H04N9/3105 , H04N9/3114 , H04N9/3141 , H04N9/3147 , Y10S362/80
摘要： The image display device is configured to include the light source including a plurality of semiconductor light-emitting elements, a parallelizing unit including a plurality of cell lenses arranged in a one-to-one correspondence with each of the plurality of semiconductor light-emitting elements, an image display element for forming an optical image, a pair of lens-array groups located between the parallelizing unit and the image display element, and a projection unit for enlarging and projecting the optical image formed on the image display element. Moreover, the plurality of semiconductor light-emitting elements are located at substantially focal points of the cell lenses of the parallelizing unit. Furthermore, there exist at least two types of semiconductor light-emitting elements' groups, light beams on optical axes of the semiconductor light-emitting elements belonging to the two types of semiconductor light-emitting elements' groups existing on straight lines which are different from optical axes of the lens-array groups.
摘要翻译： 图像显示装置被配置为包括包括多个半导体发光元件的光源，包括与多个半导体发光元件中的每一个一一对应配置的多个单元透镜的并行化单元 ，用于形成光学图像的图像显示元件，位于并行化单元和图像显示元件之间的一对透镜阵列组，以及用于放大和投影形成在图像显示元件上的光学图像的投影单元。 此外，多个半导体发光元件位于并行化单元的单元透镜的基本上的焦点处。 此外，存在至少两种类型的半导体发光元件组，属于存在于直线上的两种类型的半导体发光元件组的半导体发光元件的光轴上的光束，其不同于 透镜阵列组的光轴。
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公开(公告)号：US07220005B2
公开(公告)日：2007-05-22
申请号：US11040730
申请日：2005-01-21
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
CPC分类号： H04N9/3152 , G03B21/26 , H04N9/3164
摘要： An object of the invention is to achieve a high intensity, a compact structure, a cost reduction and a heat radiation of a liquid crystal panel, in a projection type video display apparatus employing a combination of LED light sources and a light pipe. The light pipe is formed in a hollow type so as to be utilized as a cooling wind path. Further, a permeable or reflective baffle plate is provided within the light pipe. Further, the light pipe is formed by coating a mirror on an inner surface of an optical case integrally formed by fixing optical parts. Further, a dichroic mirror is arranged in an LED light source outgoing surface.
摘要翻译： 在采用LED光源和光管的组合的投影型视频显示装置中，本发明的目的是实现液晶面板的高强度，紧凑的结构，成本降低和散热。 光管形成为中空型，以便用作冷却风路。 此外，在光管内提供可渗透或反射的挡板。 此外，通过在通过固定光学部件一体地形成的光学外壳的内表面上涂覆反射镜而形成光管。 此外，分色镜布置在LED光源出射表面中。
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公开(公告)号：US06987546B2
公开(公告)日：2006-01-17
申请号：US10292537
申请日：2002-11-13
IPC分类号： H04N9/31
CPC分类号： H04N9/3117 , G02B26/123 , G02B26/129 , H04N5/7441 , H04N5/7458
摘要： An image display technique which projects R, G, and B light rays on a display device to form an image with an increased utilization ratio of light and an increased screen brightness. R, G, and B light rays as a result of color separation are reflected by plural reflective surfaces on the inner side, etc. of a rotary polyhedral reflector, so that, as the reflector rotates around a central axis and its reflection plane sequentially changes from one reflective surface to a next one, the reflected light rays are projected on a display device surface in different positions and scroll in a prescribed direction.
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15.发明授权Image display apparatus forming optical image by irradiating light from light source onto image display element 有权图像显示装置，通过将来自光源的光照射到图像显示元件上来形成光学图像公开(公告)号：US07410264B2
公开(公告)日：2008-08-12
申请号：US11109875
申请日：2005-04-20
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
CPC分类号： G02B27/0911 , G02B27/0961 , G02B27/0994 , G03B21/2033 , H04N9/3152 , Y10S362/80
摘要： A technique is provided that improves the usage ratio of light in the illumination optical system of an image display apparatus, in which the cross-sectional size or shape of the flux of light that has formed a light source image of an LED-based light-emitting section is converted by anamorphic optics, such as collimator lens, into a size or shape appropriate for an aperture in the portion that permits the flux of the light source image to pass through, in an optical system leading to an image display element(s), and thus the quantity of fluxes of light passed through the aperture is increased.
摘要翻译： 提供了一种技术，其提高了图像显示装置的照明光学系统中的光的使用率，其中形成了基于LED的光源的光源图像的光束的截面尺寸或形状， 发光部分由诸如准直透镜的变形光学器件转换成适于在允许光源图像的光通量的部分中的孔径的尺寸或形状，在通向图像显示元件的光学系统中 ），因此通过孔径的光通量增加。
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公开(公告)号：US20050073652A1
公开(公告)日：2005-04-07
申请号：US10993945
申请日：2004-11-18
申请人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
发明人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
IPC分类号： G02F1/13 , G02B27/28 , G02F1/1335 , G03B21/00 , H04N9/31
CPC分类号： H04N9/3105 , G02B27/283
摘要： By making the beam polarization state in a cross prism having a dichroic function for an incident beam on a reflection type liquid crystal panel the same as that for a reflected ON beam, a small-sized, low cost projection type projector apparatus is provided. A Faraday rotator having a Faraday rotation angle of 45 degrees is disposed on an optical path between a PBS and a cross prism. A half-wave plate having such a polarization axis as to rotate a polarization angle of linearly polarized light by 45 or 135 degrees is disposed on an optical immediately before or behind the Faraday rotator.
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17.发明授权公开(公告)号：US07806566B2
公开(公告)日：2010-10-05
申请号：US11035709
申请日：2005-01-13
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
IPC分类号： F21V7/00
CPC分类号： H04N9/3105 , H04N9/315
摘要： In a projection type video display apparatus, in order to assure sufficient brightness by suppressing a decrease in light utilization efficiency inside a limited output aperture area of a light source unit, a transmission or reflection type liquid crystal is used for a video display device and the light source unit having a plurality of reflectors or focusing mirrors in correspondence with LED's representing light sources is so constructed as to satisfy D
摘要翻译： 在投影型视频显示装置中，为了通过抑制在光源单元的有限的输出开口面积内的光利用效率的降低来确保足够的亮度，透射或反射型液晶被用于视频显示装置，并且 具有对应于表示光源的LED的多个反射器或聚焦镜的光源单元被构造成满足D <4×f或D <4×Z，其中D表示反射器的有效直径，f表示焦点 镜的距离和Z表示光源的发光体与反射镜中心的顶点之间的距离。
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公开(公告)号：US07207680B2
公开(公告)日：2007-04-24
申请号：US10901989
申请日：2004-07-30
CPC分类号： G03B21/142 , G03B5/02 , G03B21/147
摘要： If a projection display device includes a shifting mechanism for shifting a projection lens to adjust the direction in which the display projects an optical image, it is difficult to find suitable position where the display should be installed. Thus, the projection lens is fitted with a projection angle adjusting mechanism, which includes an adjusting dial having a scale representing the position of the lens relative to a display element. The projection display device is capable of automatically displaying on the projected optical image a scale image corresponding to the scale. The projection display also is capable of displaying on the projected optical image the position of the optical axis of the projection lens, which can be shifted by the adjusting mechanism.
摘要翻译： 如果投影显示装置包括用于移动投影透镜以调整显示器投影光学图像的方向的移动机构，则难以找到应该安装显示器的合适位置。 因此，投影透镜配有投影角度调节机构，该投影角度调节机构包括具有表示透镜相对于显示元件的位置的刻度的调节表盘。 投影显示装置能够在投影光学图像上自动显示与刻度对应的刻度图像。 投影显示器还能够在投影光学图像上显示投影透镜的光轴的位置，其可以由调节机构偏移。
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公开(公告)号：US06945651B2
公开(公告)日：2005-09-20
申请号：US10993945
申请日：2004-11-18
申请人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
发明人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
CPC分类号： H04N9/3105 , G02B27/283
摘要： By making the beam polarization state in a cross prism having a dichroic function for an incident beam on a reflection type liquid crystal panel the same as that for a reflected ON beam, a small-sized, low cost projection type projector apparatus is provided. A Faraday rotator having a Faraday rotation angle of 45 degrees is disposed on an optical path between a PBS and a cross prism. A half-wave plate having such a polarization axis as to rotate a polarization angle of linearly polarized light by 45 or 135 degrees is disposed on an optical immediately before or behind the Faraday rotator.
摘要翻译： 通过使反射型液晶面板的入射光束具有二向色功能的交叉棱镜中的光束偏振状态与反射的ON光束相同，提供了小型，低成本的投影型投影仪装置。 具有法拉第旋转角度为45度的法拉第旋转器设置在PBS和交叉棱镜之间的光路上。 将具有将线性偏振光的偏振角旋转45或135度的偏振轴的半波片布置在紧邻法拉第旋转器之前或之后的光学上。
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20.发明申请公开(公告)号：US20050190307A1
公开(公告)日：2005-09-01
申请号：US11035709
申请日：2005-01-13
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
CPC分类号： H04N9/3105 , H04N9/315
摘要： In a projection type video display apparatus, in order to assure sufficient brightness by suppressing a decrease in light utilization efficiency inside a limited output aperture area of a light source unit, a transmission or reflection type liquid crystal is used for a video display device and the light source unit having a plurality of reflectors or focusing mirrors in correspondence with LED's representing light sources is so constructed as to satisfy D
摘要翻译： 在投影型视频显示装置中，为了通过抑制在光源单元的有限的输出开口面积内的光利用效率的降低来确保足够的亮度，透射或反射型液晶被用于视频显示装置，并且 具有对应于表示光源的LED的多个反射器或聚焦镜的光源单元被构造成满足D <4xf或D <4xZ，其中D表示反射器的有效直径，f表示反射镜的焦距 Z表示光源的发光体与反射镜中心的顶点之间的距离。
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