公开(公告)号：US20110298993A1

公开(公告)日：2011-12-08

申请号：US13091501

申请日：2011-04-21

申请人： Koji HIRATA ,  Hidehiro Ikeda ,  Toshihiko Matsuzawa ,  Tadashi Sato

发明人： Koji HIRATA ,  Hidehiro Ikeda ,  Toshihiko Matsuzawa ,  Tadashi Sato

IPC分类号： H04N9/31

CPC分类号： G03B21/10 ,  B29D11/00269 ,  G02B5/045 ,  G02B13/16 ,  G02B13/18 ,  G03B21/28 ,  G03B21/62

摘要： A rear-type projection board apparatus (rear-surface projection-type video display apparatus), of new structure, having no necessity of a housing, being superior in portability, cheaply producible, comprises a transmission-type screen 130, being disposed within an interior space, under a condition of exposing both surfaces thereof in the space, and for transmitting a visual light projected onto a rear surface therethrough, so as to display it on a video display surface on a front surface, and a video projection apparatus (projector) 102, being disposed at a predetermined position on a rear surface side of the transmission-type screen, and for projecting the visual light from a rear surface of the transmission-type screen, enlargedly, wherein the transmission-type screen has a Fresnel lens 166 (136) having Fresnel lens surfaces, covering over an entire light receiving surface for receiving the visual light, which is enlargedly projected from the video projection apparatus, whereby guiding the visual light received from the video projection apparatus into a direction perpendicular to the video display surface, while guiding external lights within the interior space downwards.

摘要翻译： 具有不需要外壳的新型结构的后置式投影板装置（后表面投影型视频显示装置）具有便携性优良，成本低廉的特点，包括：传输式屏幕130，其设置在 内部空间，在使其在空间中的两个表面露出的状态下，以及用于透射投影到后表面上的视觉光以便将其显示在前表面上的视频显示表面上，以及视频投影设备（投影仪 ）102设置在透射型屏幕的背面侧的预定位置，并且用于从透射型屏幕的后表面放大地投射视觉光，其中透射型屏幕具有菲涅尔透镜 166（136）具有菲涅耳透镜表面，覆盖整个光接收表面以接收从视频投影设备放大的视觉光，由此引导 将从视频投影设备接收的视觉光线垂直于视频显示表面的方向，同时向内引导内部空间内的外部光。

公开(公告)号：US08384995B2

公开(公告)日：2013-02-26

申请号：US13091501

申请日：2011-04-21

申请人： Koji Hirata ,  Hidehiro Ikeda ,  Toshihiko Matsuzawa ,  Tadashi Sato

发明人： Koji Hirata ,  Hidehiro Ikeda ,  Toshihiko Matsuzawa ,  Tadashi Sato

IPC分类号： G03B21/60

CPC分类号： G03B21/10 ,  B29D11/00269 ,  G02B5/045 ,  G02B13/16 ,  G02B13/18 ,  G03B21/28 ,  G03B21/62

摘要： A rear-type projection board apparatus (rear-surface projection-type video display apparatus), of new structure, having no necessity of a housing, being superior in portability, cheaply producible, comprises a transmission-type screen, being disposed within an interior space, under a condition of exposing both surfaces thereof in the space, and for transmitting a visual light projected onto a rear surface therethrough, so as to display it on a video display surface on a front surface, and a video projection apparatus (projector), being disposed at a predetermined position on a rear surface side of the transmission-type screen, and for projecting the visual light from a rear surface of the transmission-type screen, enlargedly, wherein the transmission-type screen has a Fresnel lens having Fresnel lens surfaces, covering over an entire light receiving surface for receiving the visual light, which is enlargedly projected from the video projection apparatus, whereby guiding the visual light received from the video projection apparatus into a direction perpendicular to the video display surface, while guiding external lights within the interior space downwards.

摘要翻译： 具有不需要外壳的新型结构的后置式投影板装置（后表面投射式视频显示装置）具有便携性优异，成本低廉的特点，包括：传输型屏幕，设置在内部 在将其两面在该空间中露出的状态下透过投影在后表面上的视觉光以将其显示在前表面的视频显示面上，以及视频投影装置（投影仪） 被布置在透射型屏幕的背面侧的预定位置处，并且用于从透射型屏幕的后表面放大地投射视觉光，其中透射型屏幕具有菲涅耳透镜 透镜表面，覆盖整个光接收表面以接收从视频投影设备被放大地投影的视觉光，从而引导视觉亮度 t从视频投影设备接收到垂直于视频显示表面的方向，同时向内引导内部空间内的外部光。

公开(公告)号：US20110199580A1

公开(公告)日：2011-08-18

申请号：US12909588

申请日：2010-10-21

申请人： Koji HIRATA ,  Hidehiro Ikeda ,  Nobuyuki Kimura

发明人： Koji HIRATA ,  Hidehiro Ikeda ,  Nobuyuki Kimura

IPC分类号： G03B21/14 ,  F21V9/00 ,  F21V7/00 ,  F21V9/16

CPC分类号： G03B21/142 ,  G03B21/20 ,  G03B21/204 ,  G03B21/2066 ,  G03B21/208

摘要： A solid-state light source device, enabling to build up with using solid-state elements, and having the structure suitable to be applied as a light source for a projection-type display apparatus, comprises a solid-state light source unit 10 for emitting excitation light therefrom, a reflection mirror (or reflector) 130 made of a parabolic surface, for condensing the excitation light from the solid-state light source to be point-like, and a disc-like (or wheel) member 140, repeating reflection/scattering or transmission/scattering of the excitation light and conversion of the excitation light, alternately, in vicinity of a focus point of the excitation light, which is condensed to be point-like by the reflection mirror (or reflector), wherein the excitation light (B-color) reflected/or scattered by that disc-like (or wheel) member and fluorescence light (Y-color), wavelength of which is converted, is taken on a same optical path, by means of the reflection mirror (or reflector) 130 or a second reflection mirror (or reflector) 130′, and thereby outputting a white color light emitting from a point-like light source.

摘要翻译： 固体光源装置，其能够使用固态元件构成，并且具有适合作为投影型显示装置的光源的结构的固体光源装置，包括：发光用固体光源装置10 激发光，由抛物线表面制成的用于将来自固态光源的激发光聚焦成点状的反射镜（或反射体）130以及盘状（或轮）部件140，反复反射 /激发光的散射或透射/散射，以及激发光的转换，交替地在被反射镜（或反射体）聚光成点状的激发光的焦点附近，其中激发 通过该盘状（或轮）构件反射/或散射的光（B色）和其波长被转换的荧光（Y-颜色）通过反射镜（在 或反射器）130或a 第二反射镜（或反射镜）130'，从而输出从点状光源发射的白色光。

公开(公告)号：US20110128472A1

公开(公告)日：2011-06-02

申请号：US13021101

申请日：2011-02-04

申请人： Koji Hirata ,  Masahiko Yatsu ,  Takanori Hisada ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Masahiko Yatsu ,  Takanori Hisada ,  Hidehiro Ikeda

IPC分类号： G02F1/1335

CPC分类号： G03B21/62 ,  G02F1/133526 ,  G02F1/133604 ,  G02F1/133605 ,  G02F1/133611 ,  G02F1/13362 ,  G02F1/13471 ,  G02F2001/133607 ,  G02F2001/133622 ,  G03B21/208 ,  G03B21/26 ,  G03B21/28 ,  H04N9/3155

摘要： A display apparatus includes a light source which is configured to emit a light, a first light modulation unit which is configured modulate the light emitted from said light source, a first drive unit which is configured to drive said first light modulation unit, a projection unit, which is configured to project the light from said first light modulation unit enlargedly, a second light modulation unit, which is configured to modulate the light emitted from said projection unit so as to be emitted to an observer side, a second drive unit which is configured to drive said second light modulation unit, and an optical direction conversion unit, which is configured to convert the light from said projection unit so that the light is incident upon an incident surface of said second light modulation unit in a direction approximately perpendicular thereto.

摘要翻译： 一种显示装置，包括被配置为发光的光源，被配置为调制从所述光源发射的光的第一光调制单元，被配置为驱动所述第一光调制单元的第一驱动单元，投影单元 其被配置为从所述第一调光单元放大的光投射第二光调制单元，其被配置为调制从所述投影单元发射的光以被发射到观察者侧;第二驱动单元，其是 被配置为驱动所述第二光调制单元，以及光学方向转换单元，其被配置为转换来自所述投影单元的光，使得光在与所述第二光调制单元的大致垂直的方向上入射到所述第二调光单元的入射表面。

公开(公告)号：US20090237627A1

公开(公告)日：2009-09-24

申请号：US12367662

申请日：2009-02-09

申请人： Tomoki KOBORI ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

发明人： Tomoki KOBORI ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

IPC分类号： G03B21/28 ,  G02B26/10

CPC分类号： G02B26/101 ,  G02B26/0833 ,  H04N9/312 ,  Y10S359/90

摘要： In a method for driving a micro mirror such as MEMS mirror and a display apparatus using the method, there are provided a mirror driving unit for driving the micro mirror which operates in a resonant mode and a nonresonant mode, a driving-condition setting unit for setting a mirror driving condition, a switching unit for switching on/off a mirror driving signal in the nonresonant mode, and a look-up table for indicating the relationship of a mirror response with respect to the driving condition already known in advance. The switching unit controls the transmission of the nonresonant-mode mirror driving signal while grasping the mirror response state with respect to the mirror driving signal, thereby finely increasing and decreasing a driving torque for the micro mirror. This fine increase and decrease allows the micro mirror to be fluctuated stably, and a further enhancement in the fluctuation rate.

摘要翻译： 在使用该MEMS方法的微反射镜的驱动方法和使用该方法的显示装置中，设置有用于驱动以谐振模式和非共振模式工作的微反射镜的反射镜驱动单元，驱动条件设定单元， 设置反射镜驱动条件，用于在非共振模式下接通/关闭镜驱动信号的切换单元，以及用于指示镜响应相对于预先已知的驾驶状态的关系的查找表。 开关单元控制非谐振模式反射镜驱动信号的传输，同时掌握相对于反射镜驱动信号的反射镜响应状态，从而微调微型反射镜的驱动转矩。 这种微小的增减使微镜稳定地波动，波动率进一步提高。

公开(公告)号：US20080284921A1

公开(公告)日：2008-11-20

申请号：US12153221

申请日：2008-05-15

申请人： Koji Hirata ,  Masahiko Yatsu ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Masahiko Yatsu ,  Hidehiro Ikeda

IPC分类号： H04N5/74

CPC分类号： G02B27/2278 ,  G02F1/133602 ,  G02F1/1347 ,  G02F2001/133601 ,  H04N13/395

摘要： An image displaying apparatus, comprising: a first light modulator unit, which is configured to modulate a light incident thereon, responding to a first video signal, thereby to form a first image; one or a plural number of second light modulator units, which is/are configured to modulate a light from a light source, responding to a second video signal; and an enlarged image forming unit, being disposed on a light incidence side of the first light modulator unit, upon which a light modulated within the second light modulator unit is projected, enlargedly, thereby to form a second image thereon, wherein upon the first light modulator unit is incident the light of the second image formed on the enlarged image forming unit, and the first image is formed through modulation of the light of the second image responding to the first video signal.

摘要翻译： 一种图像显示装置，包括：第一光调制器单元，被配置为响应于第一视频信号调制入射到其上的光，从而形成第一图像; 一个或多个第二光调制器单元，其被配置为响应于第二视频信号来调制来自光源的光; 以及放大图像形成单元，设置在第一光调制器单元的光入射侧，放大地在第二光调制器单元内调制的光投射，从而在其上形成第二图像，其中在第一光 调制器单元入射到形成在放大图像形成单元上的第二图像的光，并且通过根据第一视频信号调制第二图像的光来形成第一图像。

公开(公告)号：US07172292B2

公开(公告)日：2007-02-06

申请号：US10865549

申请日：2004-06-09

申请人： Hidehiro Ikeda ,  Shuji Kato ,  Koji Hirata ,  Naoyuki Ogura

发明人： Hidehiro Ikeda ,  Shuji Kato ,  Koji Hirata ,  Naoyuki Ogura

IPC分类号： G03B21/14 ,  G02B17/00

CPC分类号： G02B13/02

摘要： An inexpensive projection lens unit in a rear projection type image display system, having a short focal distance (wide angle of viewing field), high focus and high contrast, and as well, including a power lens made of a glass material having a high refractive index in a range from 1.63 to 1.70 and an Abbe's number of not less than 50 with an optimized incident and emergent configuration in order to satisfactorily correct aberration with a enhanced focusing performance even with a shortened focal distance. Further, the power lens having a high refractive index can exhibit a high power, and accordingly, can carry out satisfactory aberration correction by optimizing the aspheric degree of a plastic lens even though the length of back focus is increased for enhancing the contrast.

摘要翻译： 背投影型图像显示系统中的廉价的投影透镜单元，具有短焦距（观察视角宽），高焦距和高对比度，并且还包括由具有高折射率的玻璃材料制成的功率透镜 指数在1.63至1.70之间，阿贝数不少于50，具有优化的入射和紧急配置，以便即使缩短焦距也能以更好的聚焦性能令人满意地校正像差。 此外，具有高折射率的功率透镜可以表现出高功率，因此，即使增加后焦距的长度以增强对比度，也可以通过优化塑料透镜的非球面度来进行令人满意的像差校正。

公开(公告)号：US07081927B2

公开(公告)日：2006-07-25

申请号：US10978528

申请日：2004-11-02

申请人： Koji Hirata ,  Naoyuki Ogura ,  Masahiko Yatsu ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Naoyuki Ogura ,  Masahiko Yatsu ,  Hidehiro Ikeda

IPC分类号： H04N9/31 ,  G02E1/135

CPC分类号： H04N9/3141 ,  G02B13/16 ,  G03B21/10 ,  H04N5/7441 ,  H04N9/3108 ,  H04N9/3144 ,  H04N9/317

摘要： An optical projection apparatus includes an optical lighting system provided with a polarized beam splitter for polarizing white light flux from a white light source and combining the white light flux with other light fluxes, thereby taking out a predetermined polarized wave; a multi-lens array consisting of a plurality of lens elements; and an irradiator for separating the white light flux into three primary color light fluxes of red, green, and blue and irradiating each of the three color light fluxes on the same display element at an angle different from the others; and a projecting lens unit used for projecting the three primary color light fluxes modulated by the display element. Color light fluxes modulated by the display element are separated in a horizontal direction of the screen of the display element when passing an injection pupil of the projection lens unit.

公开(公告)号：US06956624B2

公开(公告)日：2005-10-18

申请号：US10447999

申请日：2003-05-30

申请人： Koji Hirata ,  Naoyuki Ogura ,  Masahiko Yatsu ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Naoyuki Ogura ,  Masahiko Yatsu ,  Hidehiro Ikeda

IPC分类号： G02B5/26 ,  G02B5/30 ,  G02B13/16 ,  G02B13/18 ,  G02B13/22 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G03B21/10 ,  G03B33/12 ,  H04N5/74 ,  H04N9/31 ,  H04N5/64

CPC分类号： H04N9/3141 ,  G02B13/16 ,  G03B21/10 ,  H04N5/7441 ,  H04N9/3108 ,  H04N9/3144 ,  H04N9/317

摘要： An optical projection apparatus includes an optical lighting system provided with a polarized beam splitter for polarizing a white light flux received from a white light source and combining the white light flux with other light fluxes, thereby taking out a predetermined polarized wave; a multi-lens array consisting of a plurality of lens elements; and an irradiator for separating the white light flux into three primary color light fluxes of red, green, and blue and irradiating each of the three color light fluxes on the same display element at an angle different from the others; and a projector for projecting the three primary color light fluxes modulated by the display element. The optical lighting system and the projector are disposed between the white light source and the display element.

摘要翻译： 光学投影装置包括：光学照明系统，设置有偏振分束器，用于偏振从白色光源接收的白色光束，并将白色光束与其他光束组合，从而取出预定的偏振波; 由多个透镜元件组成的多透镜阵列; 以及用于将白光束分离为红色，绿色和蓝色的三原色光束的照射器，并且以与其它不同的角度在同一显示元件上照射三种颜色光束中的每一种; 以及用于投影由显示元件调制的三原色光束的投影仪。 光学照明系统和投影仪设置在白色光源和显示元件之间。

公开(公告)号：US20050146786A1

公开(公告)日：2005-07-07

申请号：US10953413

申请日：2004-09-28

申请人： Hidehiro Ikeda ,  Koji Hirata ,  Shuji Kato ,  Masahiro Yamamoto ,  Masahiko Yatsu

发明人： Hidehiro Ikeda ,  Koji Hirata ,  Shuji Kato ,  Masahiro Yamamoto ,  Masahiko Yatsu

IPC分类号： G02B13/16 ,  G02B27/14 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/10 ,  G03B21/14 ,  H04N5/74 ,  H04N17/00 ,  G03B21/56 ,  G02B3/00 ,  G02B9/00

CPC分类号： G02B27/1046 ,  G02B13/16 ,  G02B27/145 ,  G02B27/149 ,  H04N5/74 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3141 ,  H04N9/3185

摘要： A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a major cause of image trapezoidal distortion. The rear projection image display apparatus has a projection lens system which includes a first lens group with positive refractive power and a second lens group which further enlarges an image enlarged by the first lens group. The projection lens system enlarges and projects an image displayed on an image display device, on a transmission screen. No reflection mirror is provided between the second lens group and the transmission screen and the image enlarged by the second lens group is directly projected on the transmission screen.

摘要翻译： 一种紧凑的背投影像显示装置，其中投影光学系统中的投影距离大大减小，并且不使用反射镜，从而消除了图像梯形失真的主要原因。 背投影像显示装置具有投影透镜系统，该投影透镜系统包括具有正屈光力的第一透镜组和第二透镜组，该第二透镜组进一步放大由第一透镜组放大的图像。 投影透镜系统在透射屏幕上放大并投影显示在图像显示装置上的图像。 在第二透镜组和透射屏之间没有设置反射镜，并且由第二透镜组放大的图像直接投影在透射屏上。