公开(公告)号：US09010944B2

公开(公告)日：2015-04-21

申请号：US12922657

申请日：2009-03-17

申请人： Norio Maeda ,  Kohei Wataru ,  Kazuhiko Inoue ,  Masahiro Terada ,  Takashi Ohta ,  Yasumasa Sawai

发明人： Norio Maeda ,  Kohei Wataru ,  Kazuhiko Inoue ,  Masahiro Terada ,  Takashi Ohta ,  Yasumasa Sawai

IPC分类号： G03B21/14 ,  G03B21/00 ,  H04N9/31

CPC分类号： G03B21/53 ,  G03B21/00 ,  G03B21/005 ,  H04N9/317

摘要： A projection type image display apparatus (1) comprises a focus correction system (30). The system includes a temperature detection mechanism (16) for measuring temperature in the vicinity of a projection lens group (13), a correction amount calculation unit (18) for calculating a correction amount for correcting the focus shift caused by a temperature change, and a driving signal generation unit (19) for generating, based on the correction amount, a driving signal for driving a focus adjustment mechanism (15). If the user performs a focus adjustment using a focus operation input unit (23), a focus operation determination unit (21) determines that a focus adjustment has occurred independently of the focus correction system and changes a correction condition stored in a memory (20).

摘要翻译： 投影型图像显示装置（1）包括聚焦校正系统（30）。 该系统包括用于测量投影透镜组（13）附近的温度的温度检测机构（16），用于计算用于校正由温度变化引起的聚焦偏移的校正量的校正量计算单元（18），以及 驱动信号生成单元（19），用于基于校正量生成用于驱动聚焦调节机构（15）的驱动信号。 如果用户使用聚焦操作输入单元（23）进行焦点调整，则聚焦操作确定单元（21）确定焦点调整发生独立于聚焦校正系统，并且改变存储在存储器（20）中的校正条件， 。

公开(公告)号：US08998423B2

公开(公告)日：2015-04-07

申请号：US13338133

申请日：2011-12-27

申请人： Yasumasa Sawai

发明人： Yasumasa Sawai

IPC分类号： G03B21/00 ,  G02B26/08 ,  G03B33/12 ,  H04N9/31 ,  G02B27/00 ,  G02B27/09

CPC分类号： G03B21/008 ,  G02B26/0833 ,  G02B27/0018 ,  G02B27/0927 ,  G02B27/0994 ,  G03B33/12 ,  H04N9/3152 ,  H04N9/3161

摘要： Assuming that a normal line of an image display surface of a DMD is a normal line Ax of the image display surface, that a direction in which a light beam specularly reflected by a mirror is outputted is a specular reflection direction R, and that an angle that the specular reflection direction R forms with respect to the normal line Ax of the image display surface is denoted by γ, an image projection apparatus satisfies the following conditional expression: β(2·k−1)≧2·γ−β(2·k)≧β(2·k+1), where β(2·k−1) and β(2·k+1) represent a diffraction angle of an odd-order diffracted light, and β(2·k) represents a diffraction angle of an even-order diffracted light.

摘要翻译： 假设DMD的图像显示面的法线是图像显示面的法线Ax，输出镜面镜面反射的光束的方向是镜面反射方向R，并且角度 相对于图像显示面的法线Ax形成的镜面反射方向R由γ表示，图像投影装置满足以下条件式：＆bgr;（2·k-1）≥2·γ＆bgr; （2·k + 1）表示奇数衍射光的衍射角，＆bgr（2·k-1）和（b）（2·k-1） ;（2·k）表示偶数衍射光的衍射角。

公开(公告)号：US08864315B2

公开(公告)日：2014-10-21

申请号：US13362960

申请日：2012-01-31

申请人： Yasumasa Sawai

发明人： Yasumasa Sawai

IPC分类号： G03B21/00 ,  G03B21/20 ,  G03B33/06

CPC分类号： G03B21/2013 ,  G03B21/2066 ,  G03B21/2073 ,  G03B33/06

摘要： An image projector has a light source emitting blue, green, and red illumination light, a digital micromirror device forming blue, green, and red images, and a projection system enlarging the images, and fulfills the formula FP≦1/(2·sin {sin−1[1/(2·FI)]+Δ}), where, when mirror surfaces forming pixels are referred to as pixel surfaces, mirror-reflected light on the pixel surface along the illumination axis is referred to as mirror-reflected light, and angles between, of the diffracted light produced as a result of the rays along the illumination axis being diffracted, the part traveling in a direction closest to the mirror-reflected light and the normal line to the image display surface is defined as diffraction angles βB, βG, and βR, then Δ represents the largest of the angles βB, βG, and βR, FI represents f-number of illumination light, and FP represents f-number of projection system.

摘要翻译： 图像投影仪具有发出蓝色，绿色和红色照明光的光源，形成蓝色，绿色和红色图像的数字微镜装置和放大图像的投影系统，并且满足公式FP＆nlE; 1 /（2·sin {sin-1 [1 /（2·FI）] +＆Dgr;}），其中，当形成像素的镜面被称为像素表面时，沿着照明轴的像素表面上的镜像反射光被称为镜 定义了由沿着照明轴的射线产生的衍射光被衍射的角度，将最靠近镜面反射光的方向行进的部分和与图像显示面的法线定义为 作为衍射角＆bgr; B，＆bgr; G和＆bgr; R，然后＆Dgr; 代表角度＆Bgr中的最大值B，＆bgr; G和＆bgr; R，FI表示照明光的f数，FP表示投影系统的f数。

公开(公告)号：US08408709B2

公开(公告)日：2013-04-02

申请号：US12958645

申请日：2010-12-02

申请人： Yasumasa Sawai ,  Iwao Adachi

发明人： Yasumasa Sawai ,  Iwao Adachi

IPC分类号： G03B21/14

CPC分类号： G02B27/283 ,  G02B27/0905 ,  G02B27/0927 ,  G02B27/0994 ,  G03B21/20 ,  H04N9/3167

摘要： First and second light sources emit first and second light beams, respectively. A light condensing system condenses the beams, and a polarization separation system separates each of the beams into first and second polarization components. A ½ phase plate converts the polarization state of the first polarization component to one equal to that of the second polarization component, and a rod integrator uniformizes spatial energy distribution of the beams condensed by the light condensing system. A relay system forms an image of an exit face of the rod integrator on a region to be illuminated. The light condensing system condenses the first and second polarization components onto first and second regions, respectively, of an entrance face of the rod integrator; and the ½ phase plate is placed at the first region of the entrance face of the rod integrator or at a position conjugate with the first region.

摘要翻译： 第一和第二光源分别发射第一和第二光束。 聚光系统使光束会聚，并且偏振分离系统将每个光束分成第一和第二偏振分量。 1/2相位板将第一偏振分量的偏振状态转换成与第二偏振分量相同的偏振态，并且棒状积分器使由聚光系统聚集的光束的空间能量分布均匀。 继电器系统在待照亮的区域上形成棒状积分器的出射面的图像。 所述聚光系统将所述第一和第二偏振分量分别聚集到所述棒状积分器的入射面的第一和第二区域上; 并且1/2相位板被放置在杆积分器的入射面的第一区域处或与第一区域共轭的位置处。

公开(公告)号：US07530697B2

公开(公告)日：2009-05-12

申请号：US11405730

申请日：2006-04-18

申请人： Yasumasa Sawai ,  Kazuhiko Inoue

发明人： Yasumasa Sawai ,  Kazuhiko Inoue

IPC分类号： G03B21/14

CPC分类号： G03B21/2013 ,  G03B21/208 ,  H04N5/74

摘要： An illumination optics includes a plurality of light source sections for emiting light beams and a time sharing color separation device having a plurality of color filters. The color filters are rotationally moved so as to cross optical paths of the emitted light beams from the light source sections, thereby separate the emitted light beams to enter there into different color light beams in a time-sharing state. The reference axes of the emitted light beams to enter the time sharing color separation device are separated from each other, and the color filters are formed so that border lines of the adjacent color filters cross the reference axes approximately simultaneously at the time of rotation.

摘要翻译： 照明光学器件包括用于发射光束的多个光源部分和具有多个滤色器的分时分色装置。 滤色器被旋转地移动以便与来自光源部分的发射光束的光路交叉，从而将发射的光束分离成在分时状态下进入不同的彩色光束。 进入分时分色装置的发射光束的参考轴线彼此分离，并且形成滤色器，使得相邻滤色器的边界线在旋转时大致同时与参考轴线交叉。

公开(公告)号：US20070252504A1

公开(公告)日：2007-11-01

申请号：US11789551

申请日：2007-04-25

申请人： Kenji Konno ,  Yasumasa Sawai

发明人： Kenji Konno ,  Yasumasa Sawai

IPC分类号： H01J1/18

CPC分类号： H04N9/3155 ,  F21K9/00 ,  F21V29/503 ,  F21V29/677 ,  G03B21/005 ,  H01L25/0753 ,  H01L33/62 ,  H01L33/647 ,  H01L33/648 ,  H01L2224/48091 ,  H01L2224/49107 ,  H01L2224/73265 ,  H01L2924/01322 ,  H01L2924/3025 ,  H04N9/3144 ,  H01L2924/00014 ,  H01L2924/00

摘要： In a light emitting module arranging therein a plurality of LEDs, each LED includes: an LED chip; and an anode connected to the LED chip. The anode includes: a support surface supporting the LED chip; and an extending part extending with respect to the support surface, and the extending parts in the plurality of LEDs separate from each other.

摘要翻译： 在配置有多个LED的发光模块中，每个LED包括：LED芯片; 和连接到LED芯片的阳极。 阳极包括：支撑LED芯片的支撑表面; 以及相对于支撑表面延伸的延伸部分，并且多个LED中的延伸部分彼此分离。

公开(公告)号：US20070019298A1

公开(公告)日：2007-01-25

申请号：US11256559

申请日：2005-10-21

申请人： Yasumasa Sawai ,  Tomokazu Taguchi ,  Yasuyuki Nomura

发明人： Yasumasa Sawai ,  Tomokazu Taguchi ,  Yasuyuki Nomura

IPC分类号： G02B27/12

CPC分类号： G02B27/145 ,  G02B5/285 ,  G02B7/008 ,  G02B27/1026 ,  G02B27/142

摘要： A dichroic film formed on a prism base member contains 10% by volume or more of a high-thermal-conductivity substance having a thermal conductivity of 20 W/mK or more at a temperature of 300 K. Preferably, the dichroic film is composed of high- and low-refractive-index layers laid alternately on one another, and the low-refractive-index layers contain 20% by volume or more of the high-thermal-conductivity substance. For lower angle-of-incidence dependence and higher light use efficiency, preferably, the following conditions: NL≧1.58 and NH/NL≧1.33, where NL represents the refractive index of the low-refractive-index layers, and NH represents the refractive index of the high-refractive-index layers.

摘要翻译： 形成在棱镜基体上的二向色膜在300K的温度下含有10体积％以上的导热率为20W / m·K以上的高导热性物质。优选地，二向色膜由 高折射率层和低折射率层彼此交替放置，低折射率层含有20体积％以上的高导热性物质。 对于更低的入射角依赖性和更高的光利用效率，优选地，以下条件：N L = 1.58和N H N / N L < SUB >> = 1.33，其中N L表示低折射率层的折射率，N H表示高折射率折射率的折射率 层。

公开(公告)号：US06624862B1

公开(公告)日：2003-09-23

申请号：US09536914

申请日：2000-03-28

申请人： Kohtaro Hayashi ,  Kenji Konno ,  Yasumasa Sawai ,  Nobuyuki Kobayashi ,  Kenji Nishiguchi ,  Hideki Nagata

发明人： Kohtaro Hayashi ,  Kenji Konno ,  Yasumasa Sawai ,  Nobuyuki Kobayashi ,  Kenji Nishiguchi ,  Hideki Nagata

IPC分类号： G02F11335

CPC分类号： H04N9/315 ,  G02F1/13363 ,  G02F1/1393 ,  G02F1/141 ,  G02F2001/133638 ,  G02F2203/02 ,  G02F2413/03 ,  G02F2413/08

摘要： A display optical apparatus is provided with: a polarizing plate transmitting illuminating light having a predetermined polarization direction; a reflective liquid crystal display device reflecting the illuminating light transmitted by the polarizing plate as projected light of a polarization condition that differs according to pixel information for each pixel; and a phase plate changing the polarization conditions of the illuminating light and the projected light and directing the illuminating light and the projected light to the polarizing plate. The phase plate is disposed between the reflective liquid crystal display device and the polarizing plate. The black level of the projected light is adjusted by rotating the principal axis direction of the phase plate.

摘要翻译： 显示光学装置设置有：透射具有预定偏振方向的照明光的偏振片; 反射型液晶显示装置，其将由偏振片透射的照明光反射为根据每个像素的像素信息而不同的偏振状态的投射光; 以及相位板，其改变照明光和投影光的偏振状态，并将照明光和投射光引导到偏振片。 相位板设置在反射型液晶显示装置和偏振片之间。 通过旋转相位板的主轴方向来调整投影光的黑色电平。

公开(公告)号：US06412951B1

公开(公告)日：2002-07-02

申请号：US09138631

申请日：1998-08-24

申请人： Yasumasa Sawai

发明人： Yasumasa Sawai

IPC分类号： G03B2114

CPC分类号： H04N9/3105 ,  G02B27/0927 ,  G02B27/0961

摘要： An optical image projector is provided with: a light source, an optical integrator which converges the light from the light source into a number of secondary light sources, a separator which separates each light ray from the secondary light sources into a plurality of color component rays, an optical image generator which generates a plurality of optical images utilizing separated color component rays, an image combiner which combines the plurality of optical images into a single optical image, and an optical system provided between the optical integrator and the image combiner such that the most intensive light rays strike the image combiner at a predetermined incident angle. The optical system includes a lens whose focal length f1 satisfies: {(D+d)/D}·L≦f1≦{D/(D−d)}·L wherein d denotes an interval between secondary light sources formed in the vicinity of a center optical axis of the optical integrator, D denotes a dimension of an area to be illuminated and, L denotes a distance between the optical integrator and the lens.

摘要翻译： 光学图像投影仪设置有：光源，将来自光源的光会聚到多个次级光源的光学积分器，将每个光线与二次光源分离成多个分色光线的分离器 使用分离的彩色分量光产生多个光学图像的光学图像发生器，将多个光学图像组合成单个光学图像的图像组合器，以及设置在光学积分器和图像组合器之间的光学系统， 最强烈的光线以预定的入射角撞击图像组合器。 光学系统包括焦距f1满足的透镜：其中d表示形成在光学积分器的中心光轴附近的二次光源之间的间隔，D表示被照射区域的尺寸，L表示 光学积分器和透镜之间的距离。

公开(公告)号：US6091550A

公开(公告)日：2000-07-18

申请号：US259175

申请日：1999-02-26

申请人： Kohtaro Hayashi ,  Yasumasa Sawai ,  Shunta Takimoto ,  Kenji Konno

发明人： Kohtaro Hayashi ,  Yasumasa Sawai ,  Shunta Takimoto ,  Kenji Konno

IPC分类号： G02B19/00 ,  G02B3/00 ,  G02B13/04 ,  G02B13/18 ,  G02B13/24 ,  G02F1/13 ,  H04N9/31 ,  F21V21/26 ,  G02B15/14 ,  G02B27/14

CPC分类号： H04N9/3105 ,  G02B13/04

摘要： A projector optical system has a reflection-type display panel, an illumination optical system for illuminating the reflection-type display panel, a projection optical system for projecting the images displayed on the reflection-type display panel onto a projected surface, and a light-deriving means for directing illumination light toward the reflection-type display panel. The projection optical system has, from the projected-surface side, a front lens unit and a rear lens unit. The light-deriving means is disposed between the front and rear lens units. Additionally, the following condition is fulfilled:-1.5

摘要翻译： 投影仪光学系统具有反射型显示面板，照明反射型显示面板用的照明光学系统，投影光学系统，将显示在反射型显示面板上的图像投影到投影面上， 用于将照明光引导到反射型显示面板的导出装置。 投影光学系统从投影面侧具有前透镜单元和后透镜单元。 导光装置设置在前透镜单元和后透镜单元之间。 此外，满足以下条件：-1.5