公开(公告)号：US07245436B2

公开(公告)日：2007-07-17

申请号：US11329132

申请日：2006-01-11

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G02B27/10

CPC分类号： G02B3/0068 ,  G03B21/208 ,  H04N9/3152

摘要： An illumination device includes a light source, a first lens array having a plurality of first small lenses, a second lens array having a plurality of second small lenses corresponding to the plurality of first small lenses, and a superimposing lens. The plurality of first small lenses is made eccentric in a certain direction while the plurality of second small lenses is made eccentric in one of the certain direction and a direction orthogonal to the certain direction. The first and second lens arrays are integrally formed into one light-transmissive member.

摘要翻译： 照明装置包括光源，具有多个第一小透镜的第一透镜阵列，具有对应于多个第一小透镜的多个第二小透镜的第二透镜阵列和叠加透镜。 多个第一小透镜在一定方向上偏心，同时多个第二小透镜在一定方向中的一个方向和与该特定方向正交的方向上偏心。 第一透镜阵列和第二透镜阵列一体地形成为一个透光构件。

公开(公告)号：US07213927B2

公开(公告)日：2007-05-08

申请号：US11072949

申请日：2005-03-07

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14 ,  G03B21/20 ,  G02B9/00

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。

公开(公告)号：US07185991B2

公开(公告)日：2007-03-06

申请号：US11002438

申请日：2004-12-03

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/20 ,  G03B21/26

CPC分类号： G03B21/14 ,  G03B21/208

摘要： A projector capable of obtaining a smooth motion picture display of high quality without significantly reducing the utilization efficiency of light includes a light source device, a first lens array, a second lens array, a superimposing lens, a liquid crystal display device, and a projective optical system. The superimposing lens includes an anamorphic optical system to shape illumination luminous fluxes from the second lens array into illumination luminous fluxes having a cross-sectional shape that illuminates all the image formation regions of the liquid crystal display device in one direction along an X-axis direction, and a part of the image formation regions in the other direction along a Y-axis direction. The projector further includes a scanning device to scan the illumination luminous fluxes shaped by the superimposing lens in synchronism with a field frequency of the liquid crystal display device along the other direction on the image formation region.

摘要翻译： 能够在不显着降低光的利用效率的情况下获得高质量的平滑电影显示的投影仪包括光源装置，第一透镜阵列，第二透镜阵列，叠加透镜，液晶显示装置和投影 光学系统。 叠加透镜包括变形光学系统，用于将来自第二透镜阵列的照明光束成形为具有沿着X轴方向在一个方向上照亮液晶显示装置的所有图像形成区域的截面形状的照明光束 以及沿着Y轴方向在另一个方向上的图像形成区域的一部分。 投影仪还包括扫描装置，用于与图像形成区域上的另一方向的液晶显示装置的场频同步地扫描由重叠透镜形成的照明光束。

公开(公告)号：US07150535B2

公开(公告)日：2006-12-19

申请号：US10957673

申请日：2004-10-05

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14 ,  G03B21/20

CPC分类号： H04N9/315 ,  G03B21/2026 ,  G03B21/208

摘要： A lighting includes: a light source device; a concave lens having a light-incident surface formed from a hyperboloid of revolution to make the luminous flux from the light source device almost parallel; a first lens array; and a second lens array, with a concave surface is present between the light-incident surface of the concave lens and the first lens array, and the concave surface causes, together with the light-incident surface of the concave lens, the luminous flux to travel along an optical path heading to an outer side rather than an optical path parallel to an optical axis of the light source device, while causing the luminous flux to pass through the small lenses that correspond to each other in the first lens array and the second lens array.

摘要翻译： 照明包括：光源装置; 具有由旋转双曲面形成的光入射面的凹透镜，使来自光源装置的光通量几乎平行; 第一透镜阵列; 并且具有凹面的第二透镜阵列存在于凹透镜的光入射表面和第一透镜阵列之间，并且凹面与凹透镜的光入射表面一起导致光通量 沿着光路行进到外侧而不是平行于光源装置的光轴的光路，同时使光通量通过第一透镜阵列中彼此对应的小透镜，第二透镜阵列 镜头阵列

公开(公告)号：US07052139B2

公开(公告)日：2006-05-30

申请号：US10913480

申请日：2004-08-09

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G03B21/14 ,  G03B21/28 ,  G03B21/20 ,  G02B3/00 ,  F21S6/00

CPC分类号： G03B21/208 ,  G03B21/20 ,  G03B21/2026

摘要： An illumination unit of the present invention includes: an ellipsoidal reflector having a first focus and a second focus; an arc tube; a collimating lens; a first lens array 120 having a plurality of small lenses 122 for splitting the illumination luminous flux from the collimating lens into a plurality of partial luminous fluxes; a second lens array having a plurality of small lenses corresponding to the plurality of the small lenses 122 of the first lens array 120; and a superimposing lens for superimposing respective partial luminous fluxes from the second lens array at the illuminated area, characterized in that the light incident surface of the first lens array 120 is situated at the position which is closer to the ellipsoidal reflector than the second focus, and which is such that the light quantity of the illumination luminous flux from the collimating lens is distributed throughout over the light incident surface.This enables the achievement of the simplification of manufacturing processing and the reduction of the manufacturing cost of the first lens array without reducing the inplane light intensity distribution characteristics on the image formation area of the electrooptic modulation unit which is the illuminated area.

摘要翻译： 本发明的照明单元包括：具有第一焦点和第二焦点的椭圆反射体; 电弧管; 准直透镜; 具有多个小透镜122的第一透镜阵列120，用于将来自准直透镜的照明光束分成多个部分光束; 具有与第一透镜阵列120的多个小透镜122对应的多个小透镜的第二透镜阵列; 以及重叠透镜，用于将来自第二透镜阵列的各个部分光束叠加在照明区域，其特征在于，第一透镜阵列120的光入射表面位于比第二焦点更靠近椭圆面反射镜的位置处， 使得来自准直透镜的照明光束的光量分布在整个光入射面上。 这使得能够实现简化制造处理和降低第一透镜阵列的制造成本，而不会降低作为照明区域的电光调制单元的图像形成区域上的面内光强度分布特性。

公开(公告)号：US07036941B2

公开(公告)日：2006-05-02

申请号：US10753488

申请日：2004-01-09

申请人： Koichi Akiyama ,  Toshiaki Hashizume

发明人： Koichi Akiyama ,  Toshiaki Hashizume

IPC分类号： G03B21/20 ,  F21V7/00

CPC分类号： H04N9/315

摘要： An illumination optical device is provided with a light source device and a uniform illumination optical system. To a light flux emission side of an expanded portion of the light source lamp of the light source device, which is opposite to a reflector of the illumination optical device, a reflection member is provided. An effective reflection plane diameter of an elliptical reflector of the light source device is 30 mm or more but 50 mm or less, Furthermore, assuming that a first focal distance of the elliptical reflector is f1, and a second focal distance thereof is f2, f1 becomes equal to or more than 5 mm, but equal to or less than 50 mm, and f2/f1 becomes in a range from 4 to 7 inclusive. With such a structure, it becomes possible to provide an illumination optical device and a projector with which a solution can be provided to achieve further system downsizing, reducing or preventing light use efficiency from lowering, keeping a light quantity at a predetermined level or more, and reducing or preventing a manufacturing cost increase.

摘要翻译： 照明光学装置设置有光源装置和均匀的照明光学系统。 对于与照明光学装置的反射器相反的光源装置的光源灯的扩大部分的光束发射侧，设置有反射构件。 光源装置的椭圆反射器的有效反射面直径为30mm以上且50mm以下。此外，假设椭圆反射体的第一焦距为f1，第二焦距为f2，则f1 变为等于或大于5mm，但等于或小于50mm，f2 / f1变为4至7的范围。 通过这样的结构，能够提供一种可以提供解决方案的照明光学装置和投影仪，以实现进一步的系统小型化，减少或防止光利用效率降低，将光量保持在预定水平或更高水平， 并减少或防止制造成本增加。

公开(公告)号：US20060007521A1

公开(公告)日：2006-01-12

申请号：US11174650

申请日：2005-07-06

申请人： Koichi Akiyama

发明人： Koichi Akiyama

IPC分类号： G02B26/00

CPC分类号： G02B27/0961 ,  G02B26/108 ,  G02B27/0983

摘要： Aspects of the invention can provide a projector including a illumination system that includes a light source device that emits a substantially parallel illumination light beam to the side of an illuminated region, a first lens array that has plural small lenses for dividing the illumination light beam emitted from the light source device into a plurality of partial light beames, a second lens array that has plural small lenses corresponding to the plural small lenses of the first lens array, a polarization conversion element for converting into a polarized light an unpolarized light included in the illumination light beam emerging from the second lens array, and a superposition lens for superposing the partial light beames emerging from the polarization conversion element on one another in the illuminated region. The invention can also include an electro-optic modulator that modulates the illumination light beam emerging from the illumination system in response to image information, and a projection optical system that projects the illumination light beam modulated by the electro-optic modulator, wherein, in order that the illumination light beam emerging from the illumination system is formed to have a cross section shape such as to illuminate all of an image formation region of the electro-optic modulator in one of vertical and horizontal directions of the image formation region and such as to illuminate part of the image formation region in the other direction, the small lenses of the first lens array have a planar shape compressed in the other direction. The projector can further include, between the illumination system and the electro-optic modulator, a scanner that scans the illumination light beam along the other direction, on the image formation region, in synchronism with a frame rate of the electro-optic modulator. The light source device can further include a light emitting tube having a light emitting portion, an ellipsoidal reflector that reflects a light emitted from the light emitting portion, a parallelization lens that converts the light reflected off the ellipsoidal reflector into a substantially parallel light, and an auxiliary mirror that reflects the light emitted from the light emitting portion to the illuminated region side onto the light emitting portion. The auxiliary mirror can have the shape in which part of its reflective concave surface is removed so that, in the cross section of the illumination light beam on a light incidence surface of the first lens array, the length thereof along the other direction becomes shorter than the length thereof along the one direction.

公开(公告)号：US20050275808A1

公开(公告)日：2005-12-15

申请号：US11132331

申请日：2005-05-19

申请人： Toshiaki Hashizume ,  Koichi Akiyama

发明人： Toshiaki Hashizume ,  Koichi Akiyama

IPC分类号： G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00

CPC分类号： G03B21/005

摘要： A color-separating optical device (30) included in an optical device (3) separates light beam irradiated from an illumination optical device (20) into three color lights of red, green and blue. The optical device (3) includes a concave lens (50) that is disposed in an optical path of the blue light having geometric length identical with that of the green light among optical paths of the three color lights extended from the illumination optical device (20) to the respective liquid crystal panels (42R, 42G, 42B), and adapted to correct an chromatic-aberration between the green light and blue light caused by the illumination optical device (20).

摘要翻译： 包括在光学装置（3）中的分色光学装置（30）将从照明光学装置（20）照射的光束分离成红色，绿色和蓝色的三色光。 光学装置（3）包括凹透镜（50），其设置在从照明光学装置（20）延伸的三色光的光路中的与绿色光的几何长度相同的蓝色光的光路中 ）连接到相应的液晶面板（42R，42G，42B），并且适于校正由照明光学装置（20）引起的绿光和蓝光之间的色像差。

公开(公告)号：US5323883A

公开(公告)日：1994-06-28

申请号：US29296

申请日：1993-03-08

申请人： Takahiro Mibe ,  Koichi Akiyama ,  Yoshio Jinbo ,  Akihiko Ozawa ,  Hiromichi Matsui

发明人： Takahiro Mibe ,  Koichi Akiyama ,  Yoshio Jinbo ,  Akihiko Ozawa ,  Hiromichi Matsui

IPC分类号： C22C37/00 ,  F16D65/12 ,  F16D69/00 ,  F16D69/02

CPC分类号： C22C37/00 ,  F16D65/125 ,  F16D69/02 ,  F16D2069/003

摘要： An automotive disc brake assembly comprises a disc rotor made of graphite cast iron with a structure of pearlite, and a brake pad made of organic material. The disc rotor has a first thermal conductivity falling in a range from 0.090 to 0.140 cal/cm.sec..degree.C. The brake pad has second thermal conductivity falling in a range from 0.65 to 3.00 Kcal/mh.degree.C. The second thermal conductivity falls in a range from 0.65 to 0.98 Kcal/mh.degree.C. provided that the second thermal conductivity satisfies the following relationship with the first thermal conductivity:.lambda..sub.R .gtoreq.-0.152.times..lambda..sub.P +0.24where, .lambda..sub.R is first thermal conductivity, and .lambda..sub.P is the second thermal conductivity. The disc brake assembly is successful in improving heat check resistance ability which is substantially influenced by thermal conductivity of the disc rotor and the brake pad.

摘要翻译： 一种汽车盘式制动器组件，包括由具有珠光体结构的石墨铸铁制成的圆盘转子和由有机材料制成的制动片。 圆盘转子的第一热传导率为0.090〜0.140cal / cm·sec。 制动片的第二热传导率在0.65-3.00Kcal / mh℃的范围内。第二热传导率在0.65至0.98Kcal / mh℃的范围内。只要第二导热系数满足 与第一热导率之间的关系：λR> = = 0.152×λP + 0.24其中，λR是第一热导率，λP是第二导热系数。 盘式制动器组件成功地提高了基本上受到盘式转子和制动衬块的导热性的影响的耐热检查能力。

公开(公告)号：US5184157A

公开(公告)日：1993-02-02

申请号：US530290

申请日：1990-05-30

申请人： Tadashi Ichihashi ,  Koichi Akiyama

发明人： Tadashi Ichihashi ,  Koichi Akiyama

IPC分类号： A61B3/10 ,  A61B3/117 ,  A61B3/12

CPC分类号： A61B3/1225

摘要： An ophthalmic measurement apparatus is provided in which a laser beam is converged at a selected point in a measurement zone within an eye and light scattered therefrom is photoelectrically detected via a measurement mask having an aperture of a prescribed size for ophthalmic measurement. During alignment the measurement zone is scanned at high speed by the laser beam with the same scanning width as the scanning width used during measurement. This makes it possible to observe any harmful light rays that will actually appear during measurement at those settings and to align the apparatus so that the harmful light rays do not come within the limiting aperture of the measurement mask, thereby enabling measurement to be conducted under optimum conditions.