公开(公告)号：US20090051886A1

公开(公告)日：2009-02-26

申请号：US12194171

申请日：2008-08-19

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： F21V7/08 ,  G03B21/28

CPC分类号： G03B21/2066

摘要： An illumination device includes a light source device including an ellipsoidal reflector with a reflecting concave surface and a light emitting tube having an emission center in the vicinity of a first focal position of the ellipsoidal reflector, and defining a first focal position and a second focal position of the ellipsoidal reflector in a cross-sectional plane in a first virtual plane including a center axis of the ellipsoidal reflector as F1 and F2, respectively, and defining a first focal position and a second focal position of the ellipsoidal reflector in a cross-sectional plane in a second virtual plane including a center axis of the ellipsoidal reflector and perpendicular to the first virtual plane as F1′ and F2′, respectively, the ellipsoidal reflector has a rotationally asymmetrical concave shape having F1 and F1′ at the same position, and F2 located between the F2′ and the ellipsoidal reflector.

摘要翻译： 照明装置包括光源装置，该光源装置包括具有反射凹面的椭圆面反射体和在该椭圆体反射体的第一焦点位置附近具有发射中心的发光管，并且限定第一焦点位置和第二焦点位置 在包括椭圆反射体的中心轴线的第一虚拟平面中的横截面中的椭圆反射体分别为F1和F2，并且在横截面中限定椭圆反射体的第一焦点位置和第二焦点位置 在包括椭圆反射体的中心轴线并垂直于第一虚拟平面的第二虚拟平面中的平面分别为F1'和F2'，椭圆反射体具有在相同位置具有F1和F1'的旋转非对称凹形，以及 F2位于F2'和椭圆反射器之间。

公开(公告)号：US07404643B2

公开(公告)日：2008-07-29

申请号：US11177420

申请日：2005-07-11

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14 ,  H04N9/14

CPC分类号： G03B21/14 ,  G03B21/208

摘要： A projector has an illumination system, an electro-optical modulator, a projection optical system, and a scanning system. The illumination system has a light source, a first lens array, a second lens array, a polarization conversion element and a superposing lens. The polarization conversion element includes a polarized light separating element and a phase plate. The polarized light separating element includes a plurality of polarized light separating prisms each of which has a polarized light separating surface and a reflection surface. The plurality of polarized light separating prisms are arranged along the one direction, and polarized light separating surfaces in the polarized light separating prisms at both ends of the polarized light separating element in one direction are constituted so as to reflect the luminous flux involving the second polarized light component in a direction approaching the illumination optical axis.

摘要翻译： 投影仪具有照明系统，电光调制器，投影光学系统和扫描系统。 照明系统具有光源，第一透镜阵列，第二透镜阵列，偏振转换元件和叠加透镜。 偏振转换元件包括偏振光分离元件和相位板。 偏振光分离元件包括多个具有偏振光分离表面和反射表面的偏振光分离棱镜。 多个偏振光分离棱镜沿着该一个方向排列，偏振光分离元件两端的偏振光分离棱镜的一个方向的偏振光分离面被构成为反射包含第二偏振光的光束 光分量在接近照明光轴的方向上。

公开(公告)号：US07357531B2

公开(公告)日：2008-04-15

申请号：US11222960

申请日：2005-09-12

申请人： Takeshi Takezawa ,  Koichi Akiyama ,  Toshiaki Hashizume

发明人： Takeshi Takezawa ,  Koichi Akiyama ,  Toshiaki Hashizume

IPC分类号： H01J61/35 ,  H21V13/00

CPC分类号： G03B21/2026 ,  G03B21/2066

摘要： In a light source device (10), relations of θ1≦Tan−1 (Hd/(2f1)) and T1

摘要翻译： 在光源装置（10）中，建立了θ1 <= TAN ^{-1（Hd /（2f 1））和T 1}

公开(公告)号：US07354162B2

公开(公告)日：2008-04-08

申请号：US11265170

申请日：2005-11-03

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/20 ,  G03B21/26 ,  G03B21/28 ,  G02F1/1335 ,  H04N5/74 ,  G02B5/30 ,  G02B27/10 ,  G02B27/12 ,  G02B27/14 ,  G02B27/28

CPC分类号： G03B21/208 ,  G03B21/20 ,  H04N9/3105 ,  H04N9/3152

摘要： A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination light coming from the light source device into a plurality of partial light fluxes; a second lens array having a plurality of second small lenses corresponding to the first small lenses; a superposing optical system that superposes the partial light fluxes coming from the second lens array on regions to be illuminated; a color-separating and guiding optical system that separates the lights coming from the second lens array into lights in a plurality of different colors and guides the separated lights to the regions to be illuminated; a plurality of electro-optical modulation devices each of which modulates the light in the corresponding color of the lights in the plural colors separated by the color-separating and guiding optical system in accordance with image information; a color synthesizing optical system that synthesizes the lights in the respective colors modulated by the plural electro-optical modulation devices; and a projecting optical system that projects image light produced by the color synthesizing optical system. The superposing optical system has a first superposing lens disposed between the second lens array and the color-separating and guiding optical system and a second superposing lens having a convex lens included in the color-separating and guiding optical system.

摘要翻译： 投影仪包括：发射基本平行的照明光的光源装置; 第一透镜阵列，具有多个第一小透镜，每个第一小透镜将来自光源装置的照明光分成多个部分光束; 具有对应于第一小透镜的多个第二小透镜的第二透镜阵列; 叠加的光学系统，将来自第二透镜阵列的部分光束叠加在要被照射的区域上; 分离引导光学系统，其将来自第二透镜阵列的光分成多个不同颜色的光，并将分离的光引导到待照射的区域; 多个电光调制装置，其分别根据图像信息调制由分色引导光学系统分离的多种颜色的相应颜色的光; 合成由所述多个电光调制装置调制的各颜色的光的彩色合成光学系统; 以及投影光学系统，投射由彩色合成光学系统产生的图像光。 重叠光学系统具有设置在第二透镜阵列和分色引导光学系统之间的第一叠加透镜和具有包括在分色引导光学系统中的凸透镜的第二叠置透镜。

公开(公告)号：US20060164601A1

公开(公告)日：2006-07-27

申请号：US11322218

申请日：2006-01-03

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/00

CPC分类号： G03B21/20 ,  G02B26/108 ,  G02B27/283 ,  G03B33/06 ,  H04N9/3117 ,  H04N9/3152

摘要： A projector that includes: an illumination device; an electro-optic modulator that modulates a luminous flux coming from the illumination device in accordance with image information; and a projection optical system that projects a light modulated by the electro-optic modulator. The illumination device is provided with: a light source device that emits a substantially parallel luminous flux to the side of a region to be illuminated; a first lens array including a plurality of first small lenses that divide the luminous flux coming from the light source device into a plurality of partial luminous fluxes; a second lens array including a plurality of second small lenses corresponding to the first small lenses of the first lens array; and a superimposing lens that superimposes, in the region to be illuminated, the partial luminous fluxes coming from the second small lenses of the second lens array. In the projector, each first small lens in the first lens array have a plane shape compressed in a direction which is either vertical or horizontal direction of the image formation region of the electro-optic modulator to make the luminous flux coming from the illumination device entirely illuminate an image formation region of the electro-optic modulator in the other direction thereof, and partially illuminate the image formation region in the one direction. The projector further includes: a light shielding member that is disposed between the illumination device and the electro-optic modulator to be substantially optically conjugate with the plurality of first small lenses and the electro-optic modulator for adjusting the cross section shape of the luminous flux; and a rotating prism that is disposed on the side of the electro-optic modulator of the light shielding member for scanning, on the image formation region of the electro-optic modulator, the luminous flux coming from the light shielding member along the one direction in synchronization with a frame rate of the electro-optic modulator. The light shielding member is provided with a stray light elimination member that reflects a reflection light from a light incident surface of the rotating prism in a direction different from the rotating prism.

公开(公告)号：US07052140B2

公开(公告)日：2006-05-30

申请号：US10921106

申请日：2004-08-19

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14

CPC分类号： G03B21/208 ,  G02B27/283 ,  G03B21/2073 ,  H04N9/315

摘要： The illumination device in accordance with exemplary embodiments of the present invention is an illumination device including a light-emitting tube, an elliptical reflector, a parallelizing lens, a first lens array, a second lens array, and a polarized light conversion element. The polarized light conversion element includes a first polarized light separation unit having a single polarized light separation surface to conduct polarized light separation with respect to partial luminous fluxes of two rows, the first row and second row, of the second lens array and a single reflecting surface a second polarized light separation unit having a single polarized light separation surface to conduct polarized light separation with respect to partial luminous fluxes of two rows, the third row and fourth row, of the second lens array and a single reflecting surface, and a phase difference plate.As a result, the illumination device and projector of reduced cost, increased light utilization efficiency, and extended service life can be provided.

摘要翻译： 根据本发明的示例性实施例的照明装置是包括发光管，椭圆形反射器，平行化透镜，第一透镜阵列，第二透镜阵列和偏振光转换元件的照明装置。 偏振光转换元件包括具有单个偏振光分离表面的第一偏振光分离单元，用于相对于第二透镜阵列的第二行和第二行的两行的部分光束进行偏振光分离，并且具有单个反射 表面具有单个偏振光分离表面的第二偏振光分离单元，以相对于第二透镜阵列的两行，第三行和第四行以及单个反射表面的部分光束进行偏振光分离，以及相位 差异板。 结果，可以提供降低成本，提高光利用效率和延长使用寿命的照明装置和投影仪。

公开(公告)号：US20060077560A1

公开(公告)日：2006-04-13

申请号：US11286285

申请日：2005-11-25

申请人： Nobuo Shimizu ,  Shinichi Yotsuya ,  Hideto Yamashita ,  Masami Murata ,  Koichi Akiyama

发明人： Nobuo Shimizu ,  Shinichi Yotsuya ,  Hideto Yamashita ,  Masami Murata ,  Koichi Akiyama

IPC分类号： G02B3/00

CPC分类号： G02B3/0031 ,  B29D11/00278 ,  B29D11/00365 ,  G02B3/0012 ,  G02B3/0025 ,  G02B3/0056 ,  G02B3/0062 ,  G02B3/0068 ,  G02B3/0075

摘要： To provide a micro-lens substrate wherein a higher contrast ratio can be obtained when used in a liquid crystal panel and the like. A micro-lens substrate 1A includes a first substrate 2 with concaves for microlenses having a plurality of first concaves 31 and first aligment marks 71 formed on a first glass substrate 29, a second substrate 8 with concaves for microlenses having a plurality of second concaves 32 and second aligment marks 72 formed on a second glass substrate 89, a resin layer 9, microlenses 4 consisting of doulbe convex lenses formed of a resin filled in between the first and second concaves 31 and 32, and spacers 5.

摘要翻译： 提供一种当在液晶面板等中使用时能够获得较高的对比度的微透镜基板。 微透镜基板1A包括具有多个第一凹部31和形成在第一玻璃基板29上的第一分色标记71的微透镜用凹部的第一基板2，具有多个第二凹部的微透镜凹部的第二基板8 形成在第二玻璃基板89上的32和第二分色标记72，树脂层9，由填充在第一和第二凹部31和32之间的树脂形成的多孔凸透镜构成的微透镜4和间隔物5。

公开(公告)号：US20060056184A1

公开(公告)日：2006-03-16

申请号：US11222960

申请日：2005-09-12

申请人： Takeshi Takezawa ,  Koichi Akiyama ,  Toshiaki Hashizume

发明人： Takeshi Takezawa ,  Koichi Akiyama ,  Toshiaki Hashizume

IPC分类号： F21V13/04

CPC分类号： G03B21/2026 ,  G03B21/2066

摘要： In a light source device (10), relations of θ1≦Tan−1 (Hd/(2f1)) and T1

摘要翻译： 在光源装置（10）中，建立了θ1<= TAN ^{-1（Hd /（2f1））和T1}

公开(公告)号：US20050258779A1

公开(公告)日：2005-11-24

申请号：US11129378

申请日：2005-05-16

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14 ,  H01J61/02 ,  H01J61/56 ,  H05B41/16

CPC分类号： H04N9/315 ,  H01J61/025 ,  H01J61/56

摘要： Aspects of the invention can relate to a light source that includes a light source lamp and an arc-tube drive unit. The light source lamp can include an arc tube that emits light between a pair of electrodes, a reflector that reflects the light from the arc tube to a region to be illuminated, and an auxiliary mirror that reflects the light emitted from the arc tube to the region to be illuminated toward the reflector. The arc-tube drive unit can drive the arc tube with an alternating current so that, of the pair of electrodes of the arc tube, the brightness of a first luminescent point generated in the vicinity of a first electrode adjacent to the auxiliary mirror is lower than the brightness of a second luminescent point generated in the vicinity of a second electrode remote from the auxiliary mirror.

摘要翻译： 本发明的方面可以涉及包括光源灯和电弧管驱动单元的光源。 光源灯可以包括在一对电极之间发射光的电弧管，将来自电弧管的光反射到待照亮区域的反射器，以及将从电弧管发射的光反射到 要朝向反射器照射的区域。 电弧管驱动单元可以用交流电驱动电弧管，使得在电弧管的一对电极中，在与辅助镜相邻的第一电极附近产生的第一发光点的亮度较低 比在远离辅助镜的第二电极附近产生的第二发光点的亮度高。

公开(公告)号：US20050195374A1

公开(公告)日：2005-09-08

申请号：US11072949

申请日：2005-03-07

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G03B21/14 ,  G09G3/36 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3117 ,  G03B21/2053 ,  G03B33/12

摘要： Exemplary embodiments provide a projector having a structure capable of easy miniaturization and capable of achieving a smooth moving picture display of good quality. A projector including: an illuminating apparatus; a color separating optical system; liquid crystal display devices; and a projecting optical system, the projector further including: a shielding member provided in the vicinity of a light emitting surface of a first lens array and in which a light transmitting area and a light non-transmitting area are alternately arranged in an optical path in a first direction vertical to an optical axis of illumination; and a rotating prism, which is provided between a superimposing lens and the color separating optical system, for scanning an illuminating light bundle in image forming areas of the liquid crystal display devices synchronously with screen writing frequencies of the liquid crystal display devices.

摘要翻译： 示例性实施例提供具有能够容易地小型化并且能够实现良好质量的平滑运动图像显示的结构的投影仪。 一种投影仪，包括：照明装置; 分色光学系统; 液晶显示装置; 以及投影光学系统，所述投影仪还包括：屏蔽部件，设置在所述第一透镜阵列的发光面附近，并且在所述第一透镜阵列的光路中交替地配置有透光区域和光不透射区域 垂直于照明光轴的第一方向; 以及旋转棱镜，其设置在重叠透镜和分色光学系统之间，用于与液晶显示装置的屏幕写入频率同步地扫描液晶显示装置的图像形成区域中的照明光束。