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1. 发明授权

US06809780B2 Projector with fan controller 失效
标题翻译：投影机带风扇控制器
公开(公告)号：US06809780B2
公开(公告)日：2004-10-26
申请号：US09902346
申请日：2001-07-10
申请人： Yasumasa Sawai , Iwao Adachi , Satoshi Onishi , Kazuhiko Inoue , Hideki Nagata
发明人： Yasumasa Sawai , Iwao Adachi , Satoshi Onishi , Kazuhiko Inoue , Hideki Nagata
IPC分类号： H04N574
CPC分类号： H04N5/7441 , H04N5/7458 , H04N9/3102 , H04N2005/745
摘要： A projector, which projects color images using the three liquid crystal panels (41-43) while cooling them by the fans (611-613) for G, R, and B panels, comprises the level calculation unit (711) for finding the intensity levels of the R, G, and B components of image signals, the level calculation unit (721) for finding the voice levels of voice signals, the fan control unit (73) for controlling the numbers of revolutions of the fans (611-613), and the memory (761) for storing the cumulative amount of lighting time of the lamp (21). As the intensity levels get higher, the numbers of revolutions of the fans are increased, and as the cumulative amount of lighting time becomes larger, the numbers of revolutions of the fans are decreased. As a result, unnecessary noises caused by the fans (611-613) can be reduced while the liquid crystal panels (41-43) are properly cooled. Thus, the present invention has an object of reducing the noise of the fan which cools the display devices such as liquid crystal panels in a projector. Thus, the object of the present invention is to realize a reduction in noise caused by the fan for cooling a display device such as liquid crystal panels in a projector.
摘要翻译：用于G，R和B面板的风扇（611-613）冷却时，使用三个液晶面板（41-43）投影彩色图像的投影仪包括用于找到强度的电平计算单元（711）图像信号的R，G和B分量的电平，用于找到语音信号的语音电平的电平计算单元（721），用于控制风扇转数的风扇控制单元（73））和用于存储灯（21）的点亮时间累积量的存储器（761）。随着强度水平的提高，风扇的转速增加，随着照明时间的累积量变大，风扇的转速降低。结果，在液晶面板（41-43）被适当冷却的情况下，可以减少由风扇（611-613）引起的不必要的噪声。因此，本发明的目的是降低投影仪中的液晶面板等显示装置的冷却风扇的噪音。因此，本发明的目的是实现降低由投影机中的液晶面板等显示装置冷却的风扇引起的噪声。

2. 发明授权

US09010944B2 Projection type image display apparatus 有权
标题翻译：投影型图像显示装置
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，。

3. 发明授权

US07530697B2 Illumination optics and image projecting apparatus having thereof 有权
标题翻译：具有照明光学元件及其投影装置
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。

4. 发明申请

US20090303607A1 ANAMORPHIC CONVERTER AND IMAGE PROJECTION SYSTEM 有权
标题翻译：不稳定转换器和图像投影系统
公开(公告)号：US20090303607A1
公开(公告)日：2009-12-10
申请号：US12473753
申请日：2009-05-28
申请人： Kazuhiko INOUE , Yasumasa Sawai
发明人： Kazuhiko INOUE , Yasumasa Sawai
IPC分类号： G02B13/08
CPC分类号： G02B13/08 , G02B7/04 , G02B13/04 , G03B21/147 , G03B37/06
摘要： An anamorphic converter includes, from a projected-surface side, a first group and a second group. The first group includes one or more lens elements and has a negative power at least in a main magnification direction. The second group includes one or more lens elements and has a positive power at least in the main magnification direction. Of optical surfaces, a last surface of the first group and a first surface of the second group: [1] have a power in both main magnification and sub-magnification directions; [2] are convex toward the projected-surface side in both main magnification and sub-magnification directions in a region having an area that is ¼ or more of an optical effective region area including a center portion of each of the last and first optical surfaces; and [3] at least one of the last and first optical surfaces is a free curved surface.
摘要翻译：变形转换器包括从投影表面侧的第一组和第二组。第一组包括一个或多个透镜元件，并且至少在主放大方向上具有负的功率。第二组包括一个或多个透镜元件，并且至少在主放大方向上具有正功率。在光学表面中，第一组的最后一个表面和第二组的第一表面[1]在主放大和次放大方向均具有功率; 在具有包括最后和第一光学表面的每个的中心部分的光学有效区域的面积为¼以上的区域的区域中，在主放大倍数和副放大倍率方向上朝向投影面侧凸出 ; 和[3]最后和第一光学表面中的至少一个是自由曲面。

5. 发明授权

US06561655B2 Projector 失效
公开(公告)号：US06561655B2
公开(公告)日：2003-05-13
申请号：US09901357
申请日：2001-07-09
申请人： Satoshi Onishi , Kazuhiko Inoue , Iwao Adachi , Yasumasa Sawai , Hideki Nagata
发明人： Satoshi Onishi , Kazuhiko Inoue , Iwao Adachi , Yasumasa Sawai , Hideki Nagata
IPC分类号： G03B2118
CPC分类号： G03B21/16
摘要： A projector includes a duct having a connecting end for connection to an air inlet provided in a housing, and an air intake end for drawing in outside air for cooling the interior of the projector. The duct is made of a soft or flexible material and is capable of altering its shape. Thus, the duct can change the position of the air intake end in space, for example, to different positions. Further, the duct is pivotable on a pivot axis, and thus can change the opening direction of the air intake end circumferentially about the pivot axis. Therefore, selection of the position and/or opening direction of the air intake end so as to draw in the outside air suitable for cooling the interior depending on the usage forms of the projector achieves efficient cooling of the interior of the projector.

6. 发明授权

US07920331B2 Anamorphic converter and image projection system 有权
标题翻译：变形转换器和图像投影系统
公开(公告)号：US07920331B2
公开(公告)日：2011-04-05
申请号：US12473753
申请日：2009-05-28
申请人： Kazuhiko Inoue , Yasumasa Sawai
发明人： Kazuhiko Inoue , Yasumasa Sawai
IPC分类号： G02B13/08
CPC分类号： G02B13/08 , G02B7/04 , G02B13/04 , G03B21/147 , G03B37/06
摘要： An anamorphic converter includes, from a projected-surface side, a first group and a second group. The first group includes one or more lens elements and has a negative power at least in a main magnification direction. The second group includes one or more lens elements and has a positive power at least in the main magnification direction. Of optical surfaces, a last surface of the first group and a first surface of the second group: [1] have a power in both main magnification and sub-magnification directions; [2] are convex toward the projected-surface side in both main magnification and sub-magnification directions in a region having an area that is ¼ or more of an optical effective region area including a center portion of each of the last and first optical surfaces; and [3] at least one of the last and first optical surfaces is a free curved surface.
摘要翻译：变形转换器包括从投影表面侧的第一组和第二组。第一组包括一个或多个透镜元件，并且至少在主放大方向上具有负的功率。第二组包括一个或多个透镜元件，并且至少在主放大方向上具有正功率。在光学表面中，第一组的最后一个表面和第二组的第一表面[1]在主放大和次放大方向均具有功率; 在具有包括最后和第一光学表面的每个的中心部分的光学有效区域的面积为¼以上的区域的区域中，在主放大倍数和副放大倍率方向上朝向投影面侧凸出 ; 和[3]最后和第一光学表面中的至少一个是自由曲面。

7. 发明申请

US20110019109A1 PROJECTION TYPE IMAGE DISPLAY APPARATUS 有权
标题翻译：投影类型图像显示设备
公开(公告)号：US20110019109A1
公开(公告)日：2011-01-27
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： H04N3/26
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，。

8. 发明申请

US20060244929A1 Illumination optics and image projecting apparatus having thereof 有权
公开(公告)号：US20060244929A1
公开(公告)日：2006-11-02
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.

9. 发明授权

US08770760B2 Image projection device 有权
标题翻译：图像投影设备
公开(公告)号：US08770760B2
公开(公告)日：2014-07-08
申请号：US13395620
申请日：2009-09-11
申请人： Yasumasa Sawai
发明人： Yasumasa Sawai
IPC分类号： G03B21/14 , G02F1/00
CPC分类号： G03B21/2073 , G02B27/285 , H04N9/3114 , H04N9/3167
摘要： The rotation axis of each mirror of a DMD (4) defines an angle of 45° with respect to long and short sides of a rectangular image display area. A polarization conversion optical system (24) makes a polarization direction of light from a light source (1) arranged in one direction and projects the arranged light, and after total reflection from the critical surface (31b) of a TIR prism (3), the light is guided to the DMD (4). When the incident surface of the critical surface (31b) and the mirror incident surface of the DMD (4) are in parallel with each other, a PBS prism array of the polarization conversion optical system (24) carries out the polarization and separation of the light from the light source (1) in a direction corresponding to the long side direction of the image display area of the DMD (4) in the case of the separation of the light from the light source (1) into two linear polarizations having different polarization directions. A polarization control means makes the two linear polarizations after the polarization and separation arranged in parallel or vertical polarization directions with respect to the incident surface of the critical surface (31b) and projects the same. Thus, a polarization condition of the light for illuminating the DMD (4) can be prevented from falling into disorder at a reflecting surface in the optical path, so that a light amount of the projection image can be prevented from reducing.
摘要翻译： DMD（4）的每个反射镜的旋转轴线相对于矩形图像显示区域的长边和短边限定45°的角度。偏振转换光学系统（24）使来自沿一个方向排列的光源（1）的光的偏振方向突出，并且在从TIR棱镜（3）的临界表面（31b）全反射之后，光被引导到DMD（4）。当临界面（31b）的入射面和DMD（4）的镜面入射面相互平行时，偏振光转换光学系统（24）的PBS棱镜阵列进行偏振光分离在将来自光源（1）的光分离成具有不同的线性偏振的情况下，在与DMD（4）的图像显示区域的长边方向对应的方向上来自光源（1）的光极化方向极化控制装置使得相对于临界表面（31b）的入射表面平行或垂直偏振方向布置的偏振和分离之后的两个线性偏振投影相同。因此，可以防止用于照亮DMD（4）的光的偏振状态在光路中的反射面处于无序状态，从而可以防止投影图像的光量减少。

10. 发明申请

US20120162615A1 Image Projection Apparatus 有权
标题翻译：图像投影仪
公开(公告)号：US20120162615A1
公开(公告)日：2012-06-28
申请号：US13338133
申请日：2011-12-27
申请人： Yasumasa Sawai
发明人： Yasumasa Sawai
IPC分类号： G03B21/28
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。

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