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21. 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。

22. 发明授权

US06478431B1 Illumination system and projector 失效
标题翻译：照明系统和投影机
公开(公告)号：US06478431B1
公开(公告)日：2002-11-12
申请号：US09705044
申请日：2000-11-02
申请人： Shigeru Sawamura , Yasumasa Sawai , Hideki Nagata
发明人： Shigeru Sawamura , Yasumasa Sawai , Hideki Nagata
IPC分类号： G03B2128
CPC分类号： H04N9/3114 , G02B26/008 , G02B26/0841
摘要： An illumination system has a light source for emitting illumination light, a color wheel, a first deflecting member, and a second deflecting member. The color wheel transmits or reflects the illumination light while rotating about a rotation axis in such a way that illumination light exiting from the color wheel has colors that are switched sequentially with time. The first deflecting member deflects the illumination light in such a way that the illumination light enters the color wheel. The second deflecting member deflects the illumination light having exited from the color wheel. The illumination light entering the first deflecting member and the illumination light exiting from the second deflecting member are both substantially perpendicular to the rotation axis of the color wheel.
摘要翻译：照明系统具有用于发射照明光的光源，色轮，第一偏转构件和第二偏转构件。色轮以围绕旋转轴旋转的方式透射或反射照明光，使得从色轮出射的照明光随着时间顺序切换的颜色。第一偏转构件以照明光进入色轮的方式偏转照明光。第二偏转构件偏转从色轮退出的照明光。进入第一偏转构件的照明光和从第二偏转构件出射的照明光都基本上垂直于色轮的旋转轴线。

23. 发明授权

US06188524B1 Optical system for use in an image projector 失效
标题翻译：用于图像投影仪的光学系统
公开(公告)号：US06188524B1
公开(公告)日：2001-02-13
申请号：US09244527
申请日：1999-02-04
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： G02B300
CPC分类号： H04N9/3105 , H04N5/7441
摘要： A projector optical system has a reflection-type display panel, an illumination optical system for illuminating the reflection-type display panel, and a projection optical system for projecting the images displayed on the reflection-type display panel onto a screen. The projection optical system has, from the screen side, a front lens unit and a rear lens unit. A light-deriving means for directing illumination light toward the reflection-type display panel is disposed between the front and rear lens units. Additionally, the following condition is fulfilled: 0.2
摘要翻译：投影仪光学系统具有反射型显示面板，用于照射反射型显示面板的照明光学系统和用于将显示在反射型显示面板上的图像投影到屏幕上的投影光学系统。投影光学系统从屏幕侧具有前透镜单元和后透镜单元。用于将照明光引向反射型显示面板的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：其中phiF表示投影光学系统的前透镜单元的光焦度，并且phi表示整个投影光学系统的光焦度。

24. 发明授权

US06183093B2 Light source device and an illuminator and an image projector 失效
标题翻译：光源装置和照明器和图像投影仪
公开(公告)号：US06183093B2
公开(公告)日：2001-02-06
申请号：US09150528
申请日：1998-09-10
申请人： Yasumasa Sawai
发明人： Yasumasa Sawai
IPC分类号： G03B2100
CPC分类号： G03B21/208 , G03B21/2013 , H04N9/315
摘要： A light source device for an image projector includes: two light sources for irradiating illumination light rays; a light distributor for receiving light rays from each of the two light sources, and sending out light rays of each of the two light sources parallel to an optical axis of the projector in a uniform distribution pattern from an entirety of an emerging surface of the light distributor. Each of the two light sources irradiates light rays in a direction inclined with respect to the light distributor so that light rays irradiated by each of the two light sources are incident onto the entire incident surface of the light distributor.
摘要翻译：一种用于图像投影仪的光源装置包括：用于照射照明光线的两个光源; 用于接收来自两个光源中的每一个的光线的光分配器，并且以均匀的分布图案从光的整个出射表面发出平行于投影仪的光轴的两个光源中的每一个的光线经销商。两个光源中的每一个以相对于分光器倾斜的方向照射光线，使得由两个光源中的每一个照射的光线入射到配光器的整个入射表面上。

25. 发明授权

US6155685A Projector 失效
标题翻译：投影机
公开(公告)号：US6155685A
公开(公告)日：2000-12-05
申请号：US958826
申请日：1997-10-28
申请人： Yasumasa Sawai , Nobuo Mushiake , Hakuzo Tani
发明人： Yasumasa Sawai , Nobuo Mushiake , Hakuzo Tani
IPC分类号： H04N9/31 , G03B21/26 , G03B21/00
CPC分类号： H04N9/3105
摘要： An optical device includes four prisms joined into one body to combine light beams, a first type of multilayer coating being provided between joining surfaces of the four prisms, and a second type of multilayer coating being provided on at least one non-joining surface of the four right-angle prisms. Each prism bears the first type of multilayer coating and the second type of multilayer coating on two or less surfaces thereof. The optical device is further provided with liquid crystal image panels to combine optical images and project a combined optical image to a screen.
摘要翻译：光学装置包括连接在一体中的四个棱镜以组合光束，在四个棱镜的接合表面之间提供第一类型的多层涂层，以及第二类型的多层涂层，其设置在所述四个棱镜的至少一个非接合表面上四个直角棱镜。每个棱镜承载第一类型的多层涂层，第二类型的多层涂层在其两个或更少表面上。光学装置还设置有液晶图像面板以组合光学图像并将组合的光学图像投影到屏幕。

26. 发明授权

US6089720A Illuminating optical apparatus 失效
标题翻译：照明光学仪器
公开(公告)号：US6089720A
公开(公告)日：2000-07-18
申请号：US141093
申请日：1998-08-27
申请人： Yasumasa Sawai
发明人： Yasumasa Sawai
IPC分类号： G02B27/18 , G03B21/28
CPC分类号： G03B21/28
摘要： An illumination mechanism is disclosed which has a high efficiency of illumination and which is compact. The mechanism includes a reflector, a light source, a first lens array with plural lens cells arranged in rows in a direction perpendicular to an optical axis thereof in which each lens cell is similar in shape to a liquid crystal panel, and a second lens array similar in construction to the first lens array, the lens arrays being disposed along the optical axis. The reflector is divided radially about the optical axis, and has a plurality of partial reflecting surfaces. Each partial reflecting surface is part of a rotation paraboloid with its center being on the optical axis. The light source is placed at a focal position of each partial reflecting surface. The focal length of each partial reflecting surface is generally inversely proportional to a distance from an aperture center of the lens cell of the second lens array to an aperture edge thereof in which the distance is parallel to the direction in which the optical axis and each partial reflecting surface are connected together perpendicularly to the optical axis.
摘要翻译：公开了具有高照明效率并且紧凑的照明机构。该机构包括反射器，光源，具有多个透镜单元的第一透镜阵列，该多个透镜单元在与其光轴垂直的方向上排列成行，每个透镜单元的形状与液晶面板相似;以及第二透镜阵列在结构上类似于第一透镜阵列，透镜阵列沿着光轴设置。反射器围绕光轴径向分开，并且具有多个部分反射表面。每个部分反射表面是旋转抛物面的一部分，其中心在光轴上。光源被放置在每个部分反射表面的焦点位置。每个部分反射表面的焦距通常与从第二透镜阵列的透镜单元的孔径中心到其开口边缘的距离成反比，其中距离平行于光轴和每个部分反射面的方向反射面垂直于光轴连接在一起。

27. 发明授权

US08696133B2 Projection optical system and image projecting device 有权
标题翻译：投影光学系统和图像投影设备
公开(公告)号：US08696133B2
公开(公告)日：2014-04-15
申请号：US13395617
申请日：2009-09-11
申请人： Masayuki Imaoka , Kohtaro Hayashi , Jun Ishihara , Yasumasa Sawai
发明人： Masayuki Imaoka , Kohtaro Hayashi , Jun Ishihara , Yasumasa Sawai
IPC分类号： G03B21/14
CPC分类号： G02B27/26 , G02B5/04 , G02B27/283
摘要： A projection optical system (6) comprises a relay optical system (61), a PBS prism (71), and two projection lenses (81). The image light beam from a DMD (5) enters the PBS prism (71) via the relay optical system (61), is polarization-split there, and is directed to a screen by means of the two projection lenses (81). Displaying an image by means of the DMD (5) is controlled while the polarized states of the light beams produced by the polarization split by means of the PBS prism (71) are controlled. Thereby, a three-dimensionally viewable image and a high-resolution image created by pixel-offset can be projected. Since the relay optical system (61) is provided, the lens backs of the projection lenses (81) can be shortened, and the projection lenses (81) and further the projection optical system (6) can be made compact.
摘要翻译：投影光学系统（6）包括中继光学系统（61），PBS棱镜（71）和两个投影透镜（81）。来自DMD（5）的图像光束经由中继光学系统（61）进入PBS棱镜（71），在其上被偏振分割，并且通过两个投影透镜（81）被引导到屏幕。控制通过DMD（5）显示图像，同时控制通过PBS棱镜（71）进行偏振分割产生的光束的偏振状态。因此，可以投影由像素偏移产生的三维可见图像和高分辨率图像。由于设置了中继光学系统（61），所以可以缩短投影透镜（81）的透镜背面，并且可以使投影透镜（81）和投影光学系统（6）进一步小型化。

28. 发明申请

US20120170000A1 Projection Optical System and Image Projecting Device 有权
标题翻译：投影光学系统和图像投影设备
公开(公告)号：US20120170000A1
公开(公告)日：2012-07-05
申请号：US13395617
申请日：2009-09-11
申请人： Masayuki Imaoka , Kohtaro Hayashi , Jun Ishihara , Yasumasa Sawai
发明人： Masayuki Imaoka , Kohtaro Hayashi , Jun Ishihara , Yasumasa Sawai
IPC分类号： G03B21/14
CPC分类号： G02B27/26 , G02B5/04 , G02B27/283
摘要： A projection optical system (6) comprises a relay optical system (61), a PBS prism (71), and two projection lenses (81). The image light beam from a DMD (5) enters the PBS prism (71) via the relay optical system (61), is polarization-split there, and is directed to a screen by means of the two projection lenses (81). Displaying an image by means of the DMD (5) is controlled while the polarized states of the light beams produced by the polarization split by means of the PBS prism (71) are controlled. Thereby, a three-dimensionally viewable image and a high-resolution image created by pixel-offset can be projected. Since the relay optical system (61) is provided, the lens backs of the projection lenses (81) can be shortened, and the projection lenses (81) and further the projection optical system (6) can be made compact.
摘要翻译：投影光学系统（6）包括中继光学系统（61），PBS棱镜（71）和两个投影透镜（81）。来自DMD（5）的图像光束经由中继光学系统（61）进入PBS棱镜（71），在其上被偏振分割，并且通过两个投影透镜（81）被引导到屏幕。控制通过DMD（5）显示图像，同时控制通过PBS棱镜（71）进行偏振分割产生的光束的偏振状态。因此，可以投影由像素偏移产生的三维可见图像和高分辨率图像。由于设置了中继光学系统（61），所以可以缩短投影透镜（81）的透镜背面，并且可以使投影透镜（81）和投影光学系统（6）进一步小型化。

29. 发明授权

US08159123B2 Light emitting device, light-emitting module, lighting apparatus, and image projection apparatus 有权
标题翻译：发光装置，发光模块，照明装置和图像投影装置
公开(公告)号：US08159123B2
公开(公告)日：2012-04-17
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： H01J1/62
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。

30. 发明授权

US07943893B2 Illumination optical system and image projection device having a rod integrator uniformizing spatial energy distribution of diffused illumination beam 有权
标题翻译：具有棒状积分器的照明光学系统和图像投影装置均匀化扩散照明光束的空间能量分布
公开(公告)号：US07943893B2
公开(公告)日：2011-05-17
申请号：US12115791
申请日：2008-05-06
申请人： Yasumasa Sawai
发明人： Yasumasa Sawai
IPC分类号： H01L27/00
CPC分类号： G03B21/208
摘要： An illumination optical system has: a light source, a diffusion member, and a rod integrator, and illuminates an image display surface of a display element. The light source emits an illumination beam having a flat cross section. The diffusion member isotropically diffuses the illumination beam. The rod integrator uniformizes spatial energy distribution of the illumination beam put into a diffused state by the diffusion member.
摘要翻译：照明光学系统具有：光源，漫射构件和杆积分器，并且照亮显示元件的图像显示面。光源发射具有平坦横截面的照明光束。扩散部件各向同性扩散照明光束。杆状积分器使通过扩散构件进入扩散状态的照明光束的空间能量分布均匀化。

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