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公开(公告)号：US4959824A
公开(公告)日：1990-09-25
申请号：US226435
申请日：1988-07-29
CPC分类号： G11B7/1376 , G11B7/09 , G11B7/0956 , G11B7/12
摘要： An information record/pickup head assembly for an optical information recording and/or reproducing apparatus using an optical information storage disk, comprising a stationary optical unit and a movable optical unit movable with respect to the information storage disk loaded, wherein the stationary optical unit emits a beam of light toward the movable optical unit which then re-directs the incident beam toward the information storage disk while returning to the stationary optical unit the beam of light reflected from the information storage disk. A focusing operation is carried out in the stationary optical unit.
摘要翻译： 一种用于使用光学信息存储盘的光学信息记录和/或再现装置的信息记录/拾取头组件，包括固定光学单元和可移动的光学单元，其可相对于所装载的信息存储盘移动，其中固定光学单元发射 朝向可移动光学单元的光束，其然后将入射光束重新引导到信息存储盘，同时将从信息存储盘反射的光束返回到固定光学单元。 在固定光学单元中进行聚焦操作。
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公开(公告)号：US5416608A
公开(公告)日：1995-05-16
申请号：US907335
申请日：1992-07-01
CPC分类号： H04N1/0284 , G02B6/001 , H04N1/02815 , H04N1/02885
摘要： An image reading apparatus for reading a projected image by a line sensor formed in a linear shape. An image reading apparatus has an illumination system, an original supporting member, a projection lens and a line sensor formed in a linear shape. The illumination system includes a light guide formed of a cylindrically shaped light-transmitting material, a light source for introducing light into the light guide from the lengthwise direction of the light guide, a light-diffusing portion formed on the circumference of the light guide in the lengthwise direction of the light guide and a slit portion positioned opposite the light-diffusing portion.
摘要翻译： 一种图像读取装置，用于通过线形传感器读取投影图像。 图像读取装置具有形成为直线状的照明系统，原始支撑部件，投影透镜和线传感器。 照明系统包括由圆柱形透光材料形成的导光体，用于将光从导光体的长度方向引入导光体的光源，形成在导光体的圆周上的光漫射部分 光导的长度方向和与光扩散部相对配置的狭缝部。
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3.发明授权Zoom lens system for use in an image projecting apparatus with kohler illumination 失效用于具有k + E，um / o / hler照明的图像投影设备的变焦透镜系统
公开(公告)号：US4909615A
公开(公告)日：1990-03-20
申请号：US198078
申请日：1988-05-24
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
IPC分类号： G02B15/177
CPC分类号： G02B15/177
摘要： A zoom lens system for use in an image projecting apparatus with Kohler illumination in which an image on an object plane is enlargingly projected by the zoom lens system to an image plane apart from the object plane at a definite distance. The zoom lens system comprises a first lens group and a second lens group being disposed in this order from the image plane and both being movable along the optical axis for zooming and an aperture stop being disposed between the first and second lens groups. The aperture stop is independently moved along the optical axis so as to make the pupil position at the reduction side substantially invariable in an operation of zooming, with the result that the condition of Kohler illumination system is satisfied without changing the position of a condensing lens system.
摘要翻译： 一种用于具有Köhler照明的图像投影设备的变焦透镜系统，其中物镜面上的图像被变焦透镜系统放大至距离物平面一定距离的像面。 变焦透镜系统包括从图像平面依次设置的第一透镜组和第二透镜组，并且两者可沿着光轴移动以进行变焦，并且孔径光阑设置在第一和第二透镜组之间。 孔径光阑独立地沿着光轴移动，以便在缩放操作中使得瞳孔位置在缩小侧基本上是不变的，结果是在不改变聚光透镜系统的位置的情况下满足了柯勒照明系统的状态 。
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4.发明授权Zoom lens system for use in an image projecting apparatus with Kohler illumination 失效变焦镜头系统，用于具有Köhler照明的图像投影设备
公开(公告)号：US4865431A
公开(公告)日：1989-09-12
申请号：US183781
申请日：1988-04-21
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
CPC分类号： G02B27/18
摘要： The disclosure relates to a zoom lens system for use in an image projecting apparatus with Kohler illumination. In this system, an aperture stop is movably provided relative to the movement of a first and second lens groups in an operation of zooming so as to make a pupil position of the zoom lens system at a reduction side invariable, with the result that Kohler illumination system is not moved.
摘要翻译： 本公开涉及一种用于具有Köhler照明的图像投影装置中的变焦透镜系统。 在该系统中，在变焦操作中相对于第一和第二透镜组的运动可移动地设置孔径光阑，以使变焦透镜系统的光瞳位置处于减小侧，结果是Köhler照明 系统不动。
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公开(公告)号：US5633758A
公开(公告)日：1997-05-27
申请号：US529164
申请日：1995-09-15
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
CPC分类号： G02B15/161
摘要： A variable magnification lens system of the invention has from the object side a positive first lens unit and a negative second lens unit. The first lens unit includes a negative first lens element and a positive second lens element. The negative second lens unit includes a positive third lens element and a negative fourth lens element. At variable magnification from an equal magnification (1:1) state to an enlargement state, the overall lens system moves while the spacing between the two lens units is increased, and the distance between the object and the image remains constant. The object side surface of the first lens element and the image side surface of the fourth lens element are concave. Aspherical surfaces are provided on both surfaces of the first lens element and the image side surface of the third lens unit. The focal length of the first lens element and fourth lens element are suitable stipulated by a condition.
摘要翻译： 本发明的可变放大倍率透镜系统从物体侧起有正的第一透镜单元和负的第二透镜单元。 第一透镜单元包括负第一透镜元件和正第二透镜元件。 负的第二透镜单元包括正的第三透镜元件和负的第四透镜元件。 在从相等的倍率（1：1）状态到放大状态的可变放大倍率下，整个透镜系统移动，同时两个透镜单元之间的间距增加，并且物体和图像之间的距离保持恒定。 第一透镜元件的物体侧表面和第四透镜元件的像侧表面是凹形的。 非球面设置在第一透镜元件的两个表面和第三透镜单元的像侧表面上。 第一透镜元件和第四透镜元件的焦距由条件规定。
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公开(公告)号：US5600489A
公开(公告)日：1997-02-04
申请号：US357450
申请日：1994-12-16
申请人： Toshihiko Ueda , Hiroki Kinoshita
发明人： Toshihiko Ueda , Hiroki Kinoshita
IPC分类号： G02B13/18 , G02B15/177 , G02B15/20 , G02B15/14
CPC分类号： G02B15/177
摘要： A copying zoom lens system is provided with from the original side a first lens unit of negative refractive power including at least one negative lens element, a second lens unit of positive refractive power including at least four lens elements, and a third lens unit of negative refractive power including at least one negative lens element. The second lens unit is asymmetric with respect to the center of the lens units of the lens system. During zooming, the projection magnification is varied with the conjugate distance being maintained constant by varying the distance between the first and second lens units and the distance between the second and third lens units and by moving the entire lens system. The axial distances among the lens units are defined by predetermined conditions.
摘要翻译： 复原变焦透镜系统从原始侧设置有包括至少一个负透镜元件的负屈光力的第一透镜单元，包括至少四个透镜元件的正屈光力的第二透镜单元，以及负折射率的第三透镜单元 屈光力包括至少一个负透镜元件。 第二透镜单元相对于透镜系统的透镜单元的中心是不对称的。 在变焦期间，通过改变第一和第二透镜单元之间的距离以及第二和第三透镜单元之间的距离以及通过移动整个透镜系统，共轭距离保持恒定，投影倍率变化。 透镜单元之间的轴向距离由预定条件限定。
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公开(公告)号：US4981344A
公开(公告)日：1991-01-01
申请号：US436317
申请日：1989-11-13
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
摘要： A wide angle lens system having, from the object side, a first lens of a negative refractive power, a second lens of a positive meniscus lens, a third lens of a negative meniscus lens, a fourth lens of a positive meniscus lens, a diaphragm, a fifth lens being symmetrical with the fourth lens with respect to the diaphragm, a sixth lens being symmetrical with the third lens with respect to the diaphragm, a seventh lens being symmetrical with the second lens with respect to the diaphragm, and a eighth lens being symmetrical with the first lens. Each of the first and eighth lenses may have an aspherical surface in rotation symmetry with each other with respect to the diaphragm. Also, some of the lenses may be made of synthetic resin.
摘要翻译： 一种广角透镜系统，其从物体侧具有负折光力的第一透镜，正弯月透镜的第二透镜，负弯月形透镜的第三透镜，正弯月形透镜的第四透镜，光阑 与第四透镜相对于隔膜对称的第五透镜，与第三透镜相对于隔膜对称的第六透镜，与第二透镜相对于隔膜对称的第七透镜，以及第八透镜 与第一透镜对称。 第一和第八透镜中的每一个可以具有相对于隔膜相互旋转对称的非球面。 此外，一些透镜可以由合成树脂制成。
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公开(公告)号：US3950409A
公开(公告)日：1976-04-13
申请号：US454414
申请日：1974-03-25
CPC分类号： C07C51/265
摘要： An improved process for continuously preparing terephthalic acid by a catalytic liquid-phase oxidation which comprises recycling a part of the mother liquor of the oxidation product to the catalytic liquid-phase oxidation zone either as such or after concentration, concentrating the remainder of the mother liquor, until the amount of acetic acid in the resulting bottoms becomes not more than 5% by weight based on the weight of the residual bottoms and the amount of benzoic acid bottoms becomes not less than 15% by weight based on the weight based on the weight of the residual bottoms, contacting the bottoms in the hot and molten state with 2 to 5 times their weight of water, and rapidly cooling the bottom to a temperature of not more than 50.degree.C., separating an aqueous solution containing the catalyst from the resulting granular solid mixture and recycling the aqueous solution to the catalytic liquid-phase oxidation zone.
摘要翻译： 一种用于通过催化液相氧化连续制备对苯二甲酸的改进方法，其包括将氧化产物的母液的一部分本身或浓缩后再循环到催化液相氧化区，浓缩剩余的母液 ，直到所得塔底物中的乙酸量基于残留底物的重量为5重量％以下，苯甲酸底部的量为基于重量的15重量％以上的重量 的残留底部，将热熔融状态的底部与其重量的2至5倍接触，并将底部快速冷却至不高于50℃的温度，将含有催化剂的水溶液与 得到的颗粒状固体混合物并将水溶液再循环到催化液相氧化区。
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公开(公告)号：US5073015A
公开(公告)日：1991-12-17
申请号：US632086
申请日：1990-12-20
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
IPC分类号： G02B15/16 , G02B15/177
CPC分类号： G02B15/177
摘要： A zoom lens system having a negative lens group which includes a negative lens having a concave surface facing the reducing side and a positive lens having a convex surface facing the enlarging side, and a positive lens group which includes a positive lens unit of at least one positive lens having a convex surface facing the enlarging side, a first lens having a concave surface facing the reducing side, a double convex lens, and a second lens having a concave surface facing the enlarging side, and wherein said zoom lens system is standardized by the conditional expression so that the pupil position on the reducing side approaches the image point on the reducing side.
摘要翻译： 一种具有负透镜组的变焦透镜系统，包括具有面向所述还原侧的凹面的负透镜和具有面向所述放大侧的凸面的正透镜，以及正透镜组，所述正透镜组包括至少一个 具有面向放大侧的凸面的正透镜，具有面向减光侧的凹面的第一透镜，双凸透镜和具有面向放大侧的凹面的第二透镜，并且其中所述变焦透镜系统由 条件表达式使得减小侧上的光瞳位置接近还原侧的图像点。
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公开(公告)号：US4934794A
公开(公告)日：1990-06-19
申请号：US284259
申请日：1988-12-14
申请人： Toshihiko Ueda
发明人： Toshihiko Ueda
IPC分类号： G02B13/24 , G02B15/16 , G02B15/177
CPC分类号： G02B15/177
摘要： A zoom lens system for use in a microfilm projection apparatus, having from the enlargement side a first lens unit of a negative refractive power, a second lens unit of a positive refractive power and a third lens unit of a negative refractive power and including an aperture stop positioned within the second lens unit or in the vicinity thereof. The first lens unit consists of one or more meniscus lens elements each having a concave surface faced to the reduction side. The second lens unit includes, from the enlargement side, a lens group having at least two positive lens elements,a negative lens element and a positive lens element. The third lens unit consists of one or more meniscus lens elements each having a concave surface faced to the enlargement side. Zooming operation from the longest focal length side to the shortest focal length side is carried out by linearly moving both the second and third lens units to the reduction side along the optical axis while first lens unit is fixed. The zoom lens system fulfills the following condition:0.5
摘要翻译： 一种用于微缩胶片投影装置的变焦透镜系统，具有从放大侧具有负屈光力的第一透镜单元，具有正屈光力的第二透镜单元和具有负屈光力的第三透镜单元，并且包括孔 停止位于第二透镜单元内或其附近。 第一透镜单元由一个或多个弯月形透镜元件组成，每个凹部具有面向减小侧的凹面。 第二透镜单元从放大侧包括具有至少两个正透镜元件的透镜组，负透镜元件和正透镜元件。 第三透镜单元由一个或多个弯月透镜元件组成，每个具有面向放大侧的凹面。 通过在固定第一透镜单元的同时沿着光轴将第二透镜单元和第三透镜单元线性移动到还原侧，进行从最长焦距侧到最短焦距侧的变焦操作。 变焦透镜系统满足以下条件：0.5 <（DC-DD）/（DA-DB）<0.8其中DA和DB是在最短焦距侧和最长焦距处的第一和第二透镜单元之间的距离 侧面分别为在最短焦距侧和最长焦距侧的第二和第三透镜单元之间的距离。
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