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公开(公告)号：US5739875A
公开(公告)日：1998-04-14
申请号：US665535
申请日：1996-06-18
摘要： A projection type display apparatus incorporating a light receiver or a light transmitter, in which the light signal is received or transmitted through a screen or condensing lens disposed in its vicinity, and hence the luminous flux utility efficiency is high. A projection type display apparatus capable of preventing deterioration of picture quality due to difference in color in the projection units, and the best picture quality is realized even when the projection lenses for different colors are composed of nearly same components.
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公开(公告)号：US5745297A
公开(公告)日：1998-04-28
申请号：US678691
申请日：1996-07-11
申请人： Toshihide Kaneko , Shinsuke Shikama , Eiichi Toide
发明人： Toshihide Kaneko , Shinsuke Shikama , Eiichi Toide
摘要： A retrofocus lens system comprises, in order from a large conjugate side: a first lens group having a negative refracting power and including a plurality of lens elements; a second lens group having a positive refracting power; and a third lens group having a positive refracting power. Each of the lens elements of the first lens group has a negative refracting power. Following conditional expressions (1) to (3) are satisfied: 1.3
摘要翻译： 复镜透镜系统从大共轭侧依次包括具有负折射率并包括多个透镜元件的第一透镜组; 具有正折射率的第二透镜组; 以及具有正折射率的第三透镜组。 第一透镜组的每个透镜元件具有负的折射光焦度。 满足条件式（1）〜（3）：1.3
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公开(公告)号：US5642229A
公开(公告)日：1997-06-24
申请号：US260979
申请日：1994-06-15
申请人： Toshihide Kaneko , Eiichi Toide
发明人： Toshihide Kaneko , Eiichi Toide
CPC分类号： G02B13/16
摘要： A projection lens unit includes, in accordance with the order of disposition from a screen side, a first lens group including a positive meniscus lens, a second lens group including a double convex lens, and a third lens group which corrects curvature of field, wherein the third lens group has two concave lenses. A projection lens unit includes, in accordance with the order of disposition from a screen side, a first lens having a positive meniscus form, a second lens having a negative meniscus form, a third lens which is double-convex lens having a light gathering function, a fourth lens which is disposed near the third lens and is a double-convex lens having a positive power, a fifth lens provided at its central portion with a convex surface directed to a screen and provided at its peripheral portion with a concave portion directed to the screen, and a sixth lens having a concave surface directed to the screen, wherein each of the second, fourth and fifth lenses has at least one aspherical surface.
摘要翻译： 投影透镜单元根据从屏幕侧配置的顺序包括包括正弯月透镜的第一透镜组，包括双凸透镜的第二透镜组和校正曲率的第三透镜组，其中 第三透镜组具有两个凹透镜。 投影透镜单元根据从屏幕侧配置的顺序包括具有正弯月形状的第一透镜，具有负弯月形的第二透镜，具有聚光功能的双凸透镜的第三透镜 设置在第三透镜附近的第四透镜，是具有正光焦度的双凸透镜;第五透镜，在其中央部设置有凸面指向屏幕，并在其周边部分设置有指向 以及具有指向屏幕的凹面的第六透镜，其中第二透镜，第四透镜和第五透镜中的每一个具有至少一个非球面。
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公开(公告)号：US5607216A
公开(公告)日：1997-03-04
申请号：US465057
申请日：1995-06-05
申请人： Toshihide Kaneko , Eiichi Toide
发明人： Toshihide Kaneko , Eiichi Toide
CPC分类号： H04N5/7408
摘要： A projection display apparatus comprises an image source having a rectangular image-displaying surface; a projecting lens assembly for magnifying and projecting the image onto a screen; and light-obstructing plate disposed in the vicinity of the nearest lens element of the projecting lens assembly to the image source. The light-obstructing plate is disposed in such a position that 0.1.ltoreq.R.sub.1 /R.sub.2 .ltoreq.0.8 where R.sub.1 is a radius of optical-axis light which is emitted toward the screen from a central point on the image-displaying surface through which the optical axis of the projecting lens assembly passes, and R.sub.2 is a radius of effective light which is emitted toward the screen from the image-displaying surface. The light-obstructing plate is provided with protrusions which are disposed at positions at a same distance from a first, or a second reference line on the light-obstructing plate so as to obstruct several pairs of flare beams, which are included in peripheral light emitted from the vicinity of four corners of the image-displaying surface and are traveling towards positions at a same distance from the first or the second reference line.
摘要翻译： 投影显示装置包括具有矩形图像显示面的图像源; 投影透镜组件，用于将图像放大和投影到屏幕上; 以及设置在投影透镜组件的最近的透镜元件附近的遮光板到图像源。 遮光板设置在0.1≤R/R≤0.8的位置，其中R1是从图像显示表面上的中心点向屏幕发射的光轴光的半径，通过 投影透镜组件的光轴通过，R2是从图像显示表面朝向屏幕发射的有效光的半径。 遮光板设置有突出部，其设置在与遮光板上的第一基准线或第二基准线相同的距离的位置处，以阻挡包含在周围光的多个火炬梁 从图像显示表面的四个角附近移动到与第一或第二参考线相同距离的位置。
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公开(公告)号：US5572364A
公开(公告)日：1996-11-05
申请号：US263492
申请日：1994-06-21
申请人： Eiichi Toide , Toshihide Kaneko
发明人： Eiichi Toide , Toshihide Kaneko
CPC分类号： G02B13/18
摘要： A projection lens system for projecting an enlarged image onto a display screen front an image appearing on a faceplate of a cathode ray tube utilizes at least six lens groups. The first lens group, from an end closest to the display screen, is in a form of a meniscus having a negative power. The second lens group has a weak positive power and a convex surface towards the display screen. The third lens group has a strong positive power. The fourth lens group is bi-convex and has a strong positive power. The fifth lens group has a weak positive power. The sixth lens group has a negative power and a pronounced concave surface away from the display screen. The second and fifth lens groups each are made with plastic lenses with at least aspheric surfaces on one side.
摘要翻译： 投影透镜系统用于将放大的图像投影到显示屏前面，出现在阴极射线管的面板上的图像使用至少六个透镜组。 从最接近显示屏的一端的第一透镜组是具有负光焦度的弯液面的形式。 第二透镜组具有弱正功率和朝向显示屏的凸表面。 第三透镜组具有很强的正电力。 第四透镜组是双凸的，具有很强的正功率。 第五透镜组具有弱正功率。 第六透镜组具有负电源和远离显示屏的明显的凹面。 第二和第五透镜组各自由塑料透镜制成，在一侧具有至少非球面。
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公开(公告)号：US5537167A
公开(公告)日：1996-07-16
申请号：US140543
申请日：1993-10-25
申请人： Eiichi Toide , Fusaaki Yamada , Shinsuke Shikama , Toshihide Kaneko , Kan Kawahara , Shigeru Takeuchi , Toshitaka Tachibana
发明人： Eiichi Toide , Fusaaki Yamada , Shinsuke Shikama , Toshihide Kaneko , Kan Kawahara , Shigeru Takeuchi , Toshitaka Tachibana
CPC分类号： H04N9/31
摘要： A projection type display apparatus comprising three projection units for projecting red, green and blue images, each having a constitution wherein a holding member for holding a CRT and a holding member for holding a projection lens are separately constituted and these holding members are connected liquid-tightly by means of a soft packing sheet, while a space surrounded by the holding members and the packing sheet is filled with a coolant liquid.
摘要翻译： 一种投影型显示装置，包括用于投影红色，绿色和蓝色图像的三个投影单元，每个具有用于保持CRT的保持构件和用于保持投影透镜的保持构件的构造，并且这些保持构件被连接液体 - 通过软包装片紧固，同时由保持构件和包装片包围的空间填充有冷却剂液体。
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公开(公告)号：US5404246A
公开(公告)日：1995-04-04
申请号：US80702
申请日：1993-06-24
申请人： Toshihide Kaneko , Eiichi Toide , Naoki Kawamoto
发明人： Toshihide Kaneko , Eiichi Toide , Naoki Kawamoto
摘要： A projection lens system has a first lens to a sixth lens which are serially arranged in this order from a screen side. The first lens has a meniscus configuration in which a convex surface is directed toward the screen side and the power of the lens changes from positive to negative from the optical axis toward a peripheral portion of the lens. The first lens has two aspherical surfaces. The second lens has a positive power meniscus configuration in which a convex surface is directed toward the screen side. Both surfaces of the second lens are aspherical. The third lens has a positive power meniscus configuration in which a convex surface is directed toward the screen side. The fourth lens is disposed close to the third lens and has two convex surfaces. The fifth lens has a positive power meniscus configuration in which a concave surface is directed toward the screen side. Both surfaces of the fifth lens are aspherical. The sixth lens has a concave surface which has a large curvature directed toward the screen side. The surface of the sixth lens on the screen side is aspherical.
摘要翻译： 投影透镜系统具有从屏幕侧按顺序排列的第一透镜至第六透镜。 第一透镜具有弯月面构造，其中凸表面指向屏幕侧，并且透镜的光焦度从光轴朝向透镜的周边部分从正向变为负。 第一透镜具有两个非球面。 第二透镜具有正的功率弯月形结构，其中凸面指向屏幕侧。 第二透镜的两个表面是非球面的。 第三透镜具有正的功率弯月形结构，其中凸面指向屏幕侧。 第四透镜靠近第三透镜设置并具有两个凸面。 第五透镜具有正的功率弯月形结构，其中凹面指向屏幕侧。 第五透镜的两个表面都是非球面的。 第六透镜具有朝向屏幕侧的大曲率的凹面。 屏幕侧的第六个透镜的表面是非球面的。
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8.发明授权Projection television system including a plurality of display elements with corresponding optical axes incident to a screen at different points offset from the screen center 失效投影电视系统包括多个显示元件，其具有在与屏幕中心偏移的不同点处入射到屏幕的相应光轴
公开(公告)号：US5337093A
公开(公告)日：1994-08-09
申请号：US98256
申请日：1993-07-29
申请人： Toshihide Kaneko , Eiichi Toide
发明人： Toshihide Kaneko , Eiichi Toide
CPC分类号： H04N9/31
摘要： In a projection television system having display elements displaying images of respective colors, a screen on which a color image is formed by magnifying and synthesizing the images of the respective colors, projection lenses for magnifying the images on the respective display elements and projecting them onto the screen thereby to form the color image, with the optical axis of the projection lens for a first color being disposed at a right angle to the screen and the optical axes of the projection lenses for second and third colors being disposed at an angle with respect to the optical axis of the projection lens for the first color, color imbalance is reduced. This is achieved by disposing the projection lenses for the second and third colors so that their optical axes are incident on a point different from the point at which the optical axis of the projection lens for the first color is incident. In an alternative arrangement, at least one of the display elements is provided with a filler having a transmittance varied from one position to another.
摘要翻译： 在具有显示各种颜色的图像的显示元件的投影电视系统中，通过放大和合成各种颜色的图像来形成彩色图像的屏幕，用于放大各显示元件上的图像的投影透镜并将其投影到 从而形成彩色图像，其中用于第一颜色的投影透镜的光轴以与屏幕成直角的方式设置，并且用于第二和第三颜色的投影透镜的光轴相对于 用于第一颜色的投影透镜的光轴，颜色不平衡减小。 这是通过将第二和第三颜色的投影透镜设置成使得它们的光轴入射在与第一颜色的投影透镜的光轴入射的点不同的点上来实现的。 在替代方案中，至少一个显示元件设置有具有从一个位置到另一个位置的透射率的填充物。
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公开(公告)号：US5765934A
公开(公告)日：1998-06-16
申请号：US690670
申请日：1996-07-31
申请人： Shinji Okamori , Akira Daijogo , Hiroshi Kida , Shinsuke Shikama , Eiichi Toide
发明人： Shinji Okamori , Akira Daijogo , Hiroshi Kida , Shinsuke Shikama , Eiichi Toide
CPC分类号： H04N9/3105 , G02B6/0006 , G03B21/2013 , H04N9/3147 , H04N9/315 , H04N9/3164
摘要： In a light source apparatus for use with a projection type display, at least one light source is provided for emitting light. A reflector is provided correspondingly to the light source in order to gather the light emitted from the light source into a small area to form a converged luminous flux. A light guide has at least one light input section into which the luminous flux is coupled. The light input section is provided correspondingly to the light source. The light guide combines the luminous flux received through the light input sections into a single beam of luminous flux. The light-guide has at least one light output section from which said luminous flux is output. The light source apparatus may also include light-refracting element provided between the reflector and the light-guide. The light-refracting element receives the converged luminous flux from the reflector to refract the converged luminous flux so as to couple the converged luminous flux, as a uniform luminous flux, into the light-guide.
摘要翻译： 在与投影型显示器一起使用的光源装置中，提供至少一个用于发光的光源。 对应于光源设置反射器，以将从光源发射的光聚集成小面积以形成会聚光束。 光导具有至少一个光输入部分，光通量耦合到光输入部分中。 光输入部分对应于光源设置。 光导将通过光输入部分接收的光通量组合成单光束。 光导具有至少一个输出所述光通量的光输出部分。 光源装置还可以包括设置在反射器和光导之间的光折射元件。 光折射元件从反射器接收会聚光束，以折射会聚光束，以将作为均匀光通量的会聚光束耦合到光导中。
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公开(公告)号：US4987566A
公开(公告)日：1991-01-22
申请号：US341649
申请日：1989-04-21
申请人： Shinsuke Shikama , Eiichi Toide , Mitsushige Kondou , Kazuo Iwata
发明人： Shinsuke Shikama , Eiichi Toide , Mitsushige Kondou , Kazuo Iwata
CPC分类号： G11B7/127 , H01S5/02 , H01S5/0207
摘要： In case that the light beam emitted from a light source mounted on a base element is focused to a spot light on a data storage media to write the data, when the light beam reflected from the data storage media to return to the light source is reflected from the base element and focused again on the data storage media, it becomes difficult to precisely read/write the data on the storage media. In order to resolve the above problem, a light beam treating means is provided in the base element to prevent the re-incident light beams from being reflected toward the data storage media and focused thereon.
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