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公开(公告)号：US4767199A
公开(公告)日：1988-08-30
申请号：US854754
申请日：1986-04-21
申请人： Yoshiharu Yamamoto , Yasuo Nakajima , Shusuke Ono
发明人： Yoshiharu Yamamoto , Yasuo Nakajima , Shusuke Ono
摘要： A projection lens for projecting an image appearing on a cathode-ray tube onto a screen, small in residual aberrations, having a high imaging performance, also having a large aperture ratio and a wide field angle, suitable for a video projector having a high definition of, say, 1,125 scanning lines. The projection lens has, successively from the screen side, a Gauss type lens system, a positive lens mainly for enlarging the aperture ratio, and a negative lens mainly for widening the field angle, which negative lens has a strongly concave surface at the screen end.
摘要翻译： 一种投影透镜，用于将出现在阴极射线管上的图像投影到屏幕上，具有高成像性能的小像差，还具有大的开口率和宽视角，适用于具有高清晰度的视频投影仪 例如，1,125条扫描线。 投影透镜从屏幕侧依次具有高斯型透镜系统，主要用于扩大开口率的正透镜和主要用于加宽场角的负透镜，该负透镜在屏幕端具有强凹面 。
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公开(公告)号：US4690515A
公开(公告)日：1987-09-01
申请号：US802341
申请日：1985-11-25
摘要： A compact projection lens for projecting an enlargement of an image appearing on a cathode ray tube (CRT) onto the screen. The projection lens has a first lens having a positive optical power and at least one aspheric surface, surface of the first lens that faces the screen being convex, a second lens having bi-convex surfaces and a positive optical power, and a third lens having a negative optical power and an aspheric concave surface facing the second lens. The focal length f.sub.1 of the first lens and the focal length f.sub.2 of the second lens are selected for satisfying a condition of0.55
摘要翻译： 一种紧凑的投影透镜，用于将出现在阴极射线管（CRT）上的图像放大到屏幕上。 投影透镜具有具有正光焦度的第一透镜和面向屏幕的第一透镜的至少一个非球面表面，具有双凸表面和正光焦度的第二透镜，以及第三透镜，具有 负光学功率和面对第二透镜的非球面凹面。 选择第一透镜的焦距f1和第二透镜的焦距f2以满足0.55
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3.发明授权Code sheet representing multiple code information and method for producing the same 失效表示多个代码信息的代码表及其制造方法
公开(公告)号：US5814806A
公开(公告)日：1998-09-29
申请号：US774158
申请日：1996-12-26
申请人： Yasuhiro Tanaka , Hiroaki Okayama , Shusuke Ono , Kazutake Boku , Michihiro Yamagata , Katsu Yamada , Yoshiharu Yamamoto , Motonobu Yoshikawa
发明人： Yasuhiro Tanaka , Hiroaki Okayama , Shusuke Ono , Kazutake Boku , Michihiro Yamagata , Katsu Yamada , Yoshiharu Yamamoto , Motonobu Yoshikawa
CPC分类号： G06K1/121 , G06K19/06028
摘要： A plurality of types of ink having different wavelength characteristics are used for multiple printing of code information. When two or more types of ink are to be printed in an overlapping manner, in a region 8 in which one type of ink 4 and another type of ink 5 are printed in the overlapping manner, the ink 4 and the ink 5 are printed so as not to completely overlap each other by using a checkered pattern 9. As a result, the multiple printing can be performed without strict constraints on the wavelength characteristics of the ink.
摘要翻译： 使用具有不同波长特性的多种类型的墨水用于代码信息的多次打印。 当以重叠的方式印刷两种或更多种类型的油墨时，在重叠地印刷一种类型的油墨4和另一种类型的油墨5的区域8中，油墨4和油墨5被印刷成 因为不能通过使用方格图案9彼此完全重叠。结果，可以对油墨的波长特性没有严格的约束来执行多次打印。
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公开(公告)号：US4548480A
公开(公告)日：1985-10-22
申请号：US459242
申请日：1983-01-19
CPC分类号： G02B13/16
摘要： A projection lens apparatus for projecting an image from a CRT onto a remote screen. The lens apparatus is basically a Petzval type for a large aperture ratio and comprises three lenses. The first lens is a plastic lens having at least one aspherical surface and the third lens has a bi-aspherical surface. To reduce the thermal drift of the focal position, the second lens is a glass lens, having relatively largely positive optical power.
摘要翻译： 一种用于将来自CRT的图像投影到远程屏幕上的投影透镜装置。 透镜装置基本上是用于大孔径比的Petzval型，并且包括三个透镜。 第一透镜是具有至少一个非球面的塑料透镜，第三透镜具有双非球面。 为了减少焦点位置的热漂移，第二透镜是玻璃透镜，具有较大的正光学功率。
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公开(公告)号：US4733953A
公开(公告)日：1988-03-29
申请号：US825269
申请日：1986-02-03
申请人： Yoshiharu Yamamoto , Yasuo Nakajima , Syusuke Ono
发明人： Yoshiharu Yamamoto , Yasuo Nakajima , Syusuke Ono
摘要： A color corrected projection lens with a large aperture ratio and a wide angle of view for producing on a screen an enlargement of an image appearing on a CRT, the lens having sequentially from the screen end a first unit of a bi-convex element having a positive power with a strongly convex surface directed toward the screen end, a second unit of a bi-concave element having a negative power and being located at or in the vicinity of the entrance pupil position of the entire lens system, a third unit of a bi-convex element having a positive power, and a fourth unit having a negative power with a strongly concave surface directed toward the screen end.
摘要翻译： 一种具有大孔径比和宽视角的彩色校正投影透镜，用于在屏幕上产生出现在CRT上的图像的放大，该透镜从屏幕端依次具有第一单元的双凸元件，其具有 具有朝向屏幕端的强烈凸表面的正电力，具有负电力并位于整个透镜系统的入射光瞳位置处或附近的双凹元件的第二单元，第三单元 具有正功率的双凸形元件，以及具有朝向屏幕端部的强凹表面的负功率的第四单元。
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公开(公告)号：US4792218A
公开(公告)日：1988-12-20
申请号：US139451
申请日：1987-12-30
摘要： A high definition projection lens for projecting on a screen an enlargement of an image appearing on a high resolution CRT is disclosed. The projection lens comprises a first lens having a positive optical power and a convex surface facing the screen, a meniscus second lens having a positive optical power, a third lens having bi-concave surfaces and a negative optical power, a fourth lens having a positive optical power, a fifth lens having bi-convex surfaces and a positive optical power, and a sixth lens having a negative power and an aspheric concave surface facing the fifth lens.
摘要翻译： 公开了一种用于在屏幕上投影出现在高分辨率CRT上的图像的放大的高分辨率投影透镜。 投影透镜包括具有正光焦度和面向屏幕的凸面的第一透镜，具有正光焦度的弯液面第二透镜，具有双凹面和负光焦度的第三透镜，具有正光焦度的第四透镜 光功率，具有双凸表面和正光焦度的第五透镜，以及具有负功率的第六透镜和面向第五透镜的非球面凹面。
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公开(公告)号：US5099361A
公开(公告)日：1992-03-24
申请号：US486101
申请日：1990-02-28
申请人： Yoshiharu Yamamoto , Yasuo Nakajima
发明人： Yoshiharu Yamamoto , Yasuo Nakajima
摘要： A projection lens for projecting images displayed on an image display device having angle-of-view dependency has high image focusing characteristics corresponding to high definition images, wide field angle, and telecentric characteristics. In addition, a projection television system using the same can be minimized in its size.
摘要翻译： 用于投影显示在具有视角依赖性的图像显示装置上的图像的投影透镜具有对应于高清晰度图像，宽场角和远心特性的高图像聚焦特性。 此外，使用其的投影电视系统的尺寸可以最小化。
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公开(公告)号：US4810076A
公开(公告)日：1989-03-07
申请号：US866585
申请日：1986-05-23
CPC分类号： G02B5/005
摘要： A selective shading device has a number of shading plates or planar members and a supporting body that holds the plates or planar members in such a manner that they are arrranged radially with respect to an optical axis. The device blocks sagittal bundles of rays. A preferred example of the supporting body is a cylindrical frame that holds the shading plates perpendicularly to the inner surface thereof. Alternatively, the shading planar members are formed within a lens element along the edge thereof.
摘要翻译： 选择性遮光装置具有多个遮光板或平面构件以及支撑体，其以相对于光轴径向布置的方式保持板或平面构件。 装置阻挡矢状束束。 支撑体的优选实例是将遮光板垂直于其内表面保持的圆柱形框架。 或者，阴影平面构件沿其边缘形成在透镜元件内。
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公开(公告)号：US4704009A
公开(公告)日：1987-11-03
申请号：US805385
申请日：1985-12-04
摘要： A projection lens having a large aperture ratio has 3 units for projecting an enlargemen of an image appearing on a CRT onto a screen. The first unit from the screen has a negative power so that the entrance pupil is moved toward the screen to thereby improve off-axis vignetting factor. The second unit consists of two positive power lens elements so that the positive power of the entire system is shared by the second unit and the temperature characteristic is improved by using a positive power glass lens element as one of the two positive power lens elements. The third unit has a negative power to correct curvature of field.
摘要翻译： 具有大孔径比的投影透镜具有3个单元，用于将出现在CRT上的图像的放大图像投影到屏幕上。 来自屏幕的第一单元具有负功率，使得入射光瞳向屏幕移动，从而改善离轴渐晕因子。 第二单元由两个正功率透镜元件组成，使得整个系统的正功率由第二单元共享，并且通过使用正功率玻璃透镜元件作为两个正功率透镜元件之一来提高温度特性。 第三单元具有校正曲率的负电力。
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公开(公告)号：US20120144753A1
公开(公告)日：2012-06-14
申请号：US13390841
申请日：2010-08-11
申请人： Takuya Okuno , Kazuhiro Hirose , Hideki Moriguchi , Akihiko Ikegaya , Kazuo Sasaya , Yoshiharu Yamamoto
发明人： Takuya Okuno , Kazuhiro Hirose , Hideki Moriguchi , Akihiko Ikegaya , Kazuo Sasaya , Yoshiharu Yamamoto
摘要： There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.
摘要翻译： 提供了热扩散性高且耐磨性优异的硬质合金，以及包括由该硬质合金形成的基材的切削工具。 硬质合金是WC基硬质合金，其中主要由WC颗粒构成的硬质相主要由Co组成的粘合剂相结合，并用于切削工具。 粘结相基本上由Co或Co和Ni构成。 Co和Ni的总含量不小于4.5质量％且不大于15质量％。 在这种硬质合金中，WC颗粒的平均直径不小于0.4μm且不大于4μm。
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