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31. 发明申请

US20090296227A1 MOLDED LENS 审中-公开
标题翻译：模制镜头
公开(公告)号：US20090296227A1
公开(公告)日：2009-12-03
申请号：US12471182
申请日：2009-05-22
申请人： Toshiaki Katsuma , Masao Mari , Yu Kitahara , Tetsuya Ori
发明人： Toshiaki Katsuma , Masao Mari , Yu Kitahara , Tetsuya Ori
IPC分类号： G02B3/00 , B29D11/00
CPC分类号： G02B13/0025 , G02B3/04 , G11B7/1353 , G11B7/1374
摘要： A laser beam output from a semiconductor laser light source 1 is transmitted through a cover glass 2 in the optical axis Z direction, is incident on a molded lens 4 in a state of divergent rays, is converted into convergent rays by the molded lens 4, and is applied onto a recording face 5 of the optical recording medium. A diaphragm 3 is arranged. An area of each lens surface onto which a luminous flux of the laser beam restricted by the diaphragm 3 is applied corresponds to an effective area. The following expression (1) is satisfied: d1−d0≧0.04 mm (1) where d0 denotes an effective aperture of one of the lens surfaces, and d1 denotes an outer diameter of the one of the lens surfaces.
摘要翻译：从半导体激光光源1输出的激光束沿着光轴Z方向透过盖玻璃2，以发散光线入射到模制透镜4上，通过模制透镜4转换成会聚光线，并且被施加到光学记录介质的记录面5上。设置有隔膜3。每个透镜表面上施加受光阑3限制的激光束的光通量的区域对应于有效面积。满足以下表达式（1）：d1-d0> = 0.04mm（1）其中d0表示透镜表面之一的有效孔径，d1表示透镜表面之一的外径。

32. 发明申请

US20060262427A1 Coupling optical system for optical communications 失效
标题翻译：光通信耦合光学系统
公开(公告)号：US20060262427A1
公开(公告)日：2006-11-23
申请号：US11429988
申请日：2006-05-09
申请人： Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto , Toshiaki Katsuma
发明人： Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto , Toshiaki Katsuma
IPC分类号： G02B13/02 , G01J1/04
CPC分类号： G02B6/4206 , G02F1/167 , G02F2001/294
摘要： A coupling optical system for coupling light into an optical fiber of an optical communications system includes a liquid that includes a dispersion of microscopic particles and two transparent media that hold the liquid between them along an optical axis. The refractive power of the liquid is variable according to the electromagnetic field applied to the liquid to vary the migration of the microscopic particles of the dispersion within the liquid. The position of a light collecting point of the coupling optical system is adjustable based on the variation in the refractive power of the liquid so that light can be efficiently coupled into optical fibers at different distances along the optical axis from the coupling optical system. At the light collecting point, the end surface of an optical fiber collects light from a light source or another optical fiber. One or more collimator lenses may help converge the light.
摘要翻译：用于将光耦合到光通信系统的光纤中的耦合光学系统包括液体，其包括微观颗粒的分散体和沿着光轴将液体保持在它们之间的两个透明介质。液体的屈光力根据施加到液体的电磁场而变化，以改变液体中分散体的微观颗粒的迁移。耦合光学系统的聚光点的位置可以基于液体的屈光力的变化来调节，使得光可以有效地耦合到光耦合光学系统沿光轴不同的距离。在光收集点，光纤的端面收集来自光源或另一光纤的光。一个或多个准直透镜可以帮助会聚光。

33. 发明授权

US07417806B2 Lens with reference mounting surface 有权
标题翻译：镜头与参考安装面
公开(公告)号：US07417806B2
公开(公告)日：2008-08-26
申请号：US11429989
申请日：2006-05-09
申请人： Toshiaki Katsuma , Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto
发明人： Toshiaki Katsuma , Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto
IPC分类号： G02B7/02
CPC分类号： G02B7/022 , G02B6/4206 , G02B6/423
摘要： A lens is equipped with a reference mounting surface that is abutted to a surface of a lens support member at the time of mounting the lens, wherein the reference mounting surface is arranged between a plane which is normal to the optical axis of the lens and includes a principal point on the incident light side of the lens and a plane which is normal to the optical axis of the lens and includes a principal point on the outgoing light side of the lens.
摘要翻译：透镜配备有在安装透镜时抵靠透镜支撑构件的表面的参考安装表面，其中基准安装表面布置在垂直于透镜的光轴的平面之间并且包括透镜的入射光侧的主要点和与透镜的光轴垂直的平面，并且包括透镜的出射光侧的主要点。

34. 发明申请

US20060256454A1 Lens with reference mounting surface 有权
标题翻译：镜头与参考安装面
公开(公告)号：US20060256454A1
公开(公告)日：2006-11-16
申请号：US11429989
申请日：2006-05-09
申请人： Toshiaki Katsuma , Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto
发明人： Toshiaki Katsuma , Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto
IPC分类号： G02B7/02
CPC分类号： G02B7/022 , G02B6/4206 , G02B6/423
摘要： A lens is equipped with a reference mounting surface that is abutted to a surface of a lens support member at the time of mounting the lens, wherein the reference mounting surface is arranged between a plane which is normal to the optical axis of the lens and includes a principal point on the incident light side of the lens and a plane which is normal to the optical axis of the lens and includes a principal point on the outgoing light side of the lens.
摘要翻译：透镜配备有在安装透镜时抵靠透镜支撑构件的表面的参考安装表面，其中基准安装表面布置在垂直于透镜的光轴的平面之间并且包括透镜的入射光侧的主要点和与透镜的光轴垂直的平面，并且包括透镜的出射光侧的主要点。

35. 发明授权

US07220064B2 Coupling optical system for optical communications 失效
标题翻译：光通信耦合光学系统
公开(公告)号：US07220064B2
公开(公告)日：2007-05-22
申请号：US11429988
申请日：2006-05-09
申请人： Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto , Toshiaki Katsuma
发明人： Masao Mori , Yu Kitahara , Makoto Oomura , Yoko Yamamoto , Toshiaki Katsuma
IPC分类号： G02B6/36 , G02B6/42 , G02B6/32 , G02B6/26 , G02B6/38 , G02B6/02 , G02B6/032 , G02B3/00 , G02B9/00 , G02B21/02 , G02B1/06 , G02B3/12 , G02B3/10
CPC分类号： G02B6/4206 , G02F1/167 , G02F2001/294
摘要： A coupling optical system for coupling light into an optical fiber of an optical communications system includes a liquid that includes a dispersion of microscopic particles and two transparent media that hold the liquid between them along an optical axis. The refractive power of the liquid is variable according to the electromagnetic field applied to the liquid to vary the migration of the microscopic particles of the dispersion within the liquid. The position of a light collecting point of the coupling optical system is adjustable based on the variation in the refractive power of the liquid so that light can be efficiently coupled into optical fibers at different distances along the optical axis from the coupling optical system. At the light collecting point, the end surface of an optical fiber collects light from a light source or another optical fiber. One or more collimator lenses may help converge the light.
摘要翻译：用于将光耦合到光通信系统的光纤中的耦合光学系统包括液体，其包括微观颗粒的分散体和沿着光轴将液体保持在它们之间的两个透明介质。液体的屈光力根据施加到液体的电磁场而变化，以改变液体中分散体的微观颗粒的迁移。耦合光学系统的聚光点的位置可以基于液体的屈光力的变化来调节，使得光可以有效地耦合到光耦合光学系统沿光轴不同的距离。在光收集点，光纤的端面收集来自光源或另一光纤的光。一个或多个准直透镜可以帮助会聚光。

36. 发明授权

US06781771B2 Objective lens for optical recording medium and optical pickup device using it 失效
标题翻译：用于光学记录介质的物镜和使用它的光学拾取装置
公开(公告)号：US06781771B2
公开(公告)日：2004-08-24
申请号：US10445870
申请日：2003-05-28
申请人： Yu Kitahara , Toshiaki Katsuma
发明人： Yu Kitahara , Toshiaki Katsuma
IPC分类号： G02B302
CPC分类号： G11B7/139 , G11B7/1353 , G11B7/1374 , G11B2007/0006
摘要： An objective lens and optical pickup device that uses it is disclosed having an optical diffraction surface on its surface nearest a light source which may be switched in wavelength for either CD or DVD recording/replaying. The optical diffraction surface causes a selected wavelength beam to converge or diverge more than the other wavelength beam. Superimposed in a peripheral region of the diffraction grating is a step change in height (higher or lower) which causes destructive interference for light in the peripheral region for only one of the beams. In this way, an objective lens is provided that, with a simple and compact structure, enables a light beam to be converged accurately into a spot on a selected recording medium, despite the need to have the converged beam have different wavelengths and numerical apertures, depending on the recording medium used.
摘要翻译：公开了一种使用它的物镜和光学拾取装置，其表面上最靠近光源的光学衍射表面，该衍射表面可被切换成用于CD或DVD记录/重放的波长。光学衍射表面使选定的波长光束比另一个波长光束会聚或发散。叠加在衍射光栅的周边区域中的是高度（高或低）的台阶变化，其对于仅一个光束的周边区域中的光造成相互干扰。以这种方式，提供了一种物镜，其具有简单紧凑的结构，使得光束能够精确地会聚到所选择的记录介质上的光点中，尽管需要使会聚光束具有不同的波长和数值孔径，取决于使用的记录介质。

37. 发明授权

US07656594B2 Color image readout lens and color image readout apparatus 失效
标题翻译：彩色图像读出透镜和彩色图像读出装置
公开(公告)号：US07656594B2
公开(公告)日：2010-02-02
申请号：US12134088
申请日：2008-06-05
申请人： Masao Mori , Yu Kitahara , Ryoko Otomo
发明人： Masao Mori , Yu Kitahara , Ryoko Otomo
IPC分类号： G02B9/12 , G02B5/18 , G02B3/08
CPC分类号： G02B7/008 , G02B9/34 , G02B13/26 , G02B27/0037 , G02B27/4211 , G02B27/4216 , G02B27/4283
摘要： A color image readout lens comprises, in order from an object side: a first group comprising a positive lens convex toward the object side and a biconcave negative lens; a stop; a second group comprising one diffractive optical element that has at least one flat surface and has a diffractive structure formed on the flat surface; and a third group comprising a biconvex positive lens and a negative lens concave toward the object side.
摘要翻译：彩色图像读出透镜从物体侧开始依次包括：朝向物体侧凸起的正透镜的第一组和双凹面负透镜; 停下来包括具有至少一个平坦表面并且具有形成在所述平坦表面上的衍射结构的一个衍射光学元件的第二组; 以及第三组，包括朝向物体侧的双凸正透镜和负透镜凹。

38. 发明授权

US08508862B2 Image pickup lens and image pickup apparatus 有权
标题翻译：图像拾取镜头和图像拾取装置
公开(公告)号：US08508862B2
公开(公告)日：2013-08-13
申请号：US13153979
申请日：2011-06-06
申请人： Yu Kitahara
发明人： Yu Kitahara
IPC分类号： G02B3/02
CPC分类号： G02B13/004 , G02B9/34 , G02B13/04
摘要： An image pickup lens having a four lens configuration in which a bi-concave first lens, a bi-convex second lens, a bi-concave third lens, and a positive fourth lens are disposed in this order from an object side. Here, at least one of the first, second, third, and fourth lenses has an aspherical surface on each side. The image pickup lens satisfies Conditional Expression (1) given below when a refractive index of the second lens with respect to d-line is taken as Nd2. 1.6
摘要翻译：具有四个透镜结构的图像拾取透镜，其中从物体侧依次设置双凹第一透镜，双凸第二透镜，双凹第三透镜和正第四透镜。这里，第一，第二，第三和第四透镜中的至少一个在每一侧具有非球面。当将第二透镜相对于d线的折射率取为Nd2时，图像拾取透镜满足下面给出的条件表达式（1）。 1.6

39. 发明授权

US08223245B2 Imaging lens and image pickup apparatus 有权
标题翻译：成像镜头和图像拾取装置
公开(公告)号：US08223245B2
公开(公告)日：2012-07-17
申请号：US12787011
申请日：2010-05-25
申请人： Yu Kitahara
发明人： Yu Kitahara
IPC分类号： G02B13/16 , H04N5/225
CPC分类号： G02B13/005 , G02B9/60 , G02B13/14 , G02B13/146
摘要： Disclosed is an imaging lens capable of improving weatherability, reducing performance degradation, and obtaining an optical performance excellent across a wide wavelength region from the visible wavelength region to the near-infrared wavelength region. An imaging lens for forming an image of visible and near-infrared light includes, in order from the object side: a front group that has a positive power; an aperture stop; and a rear group that has a negative power. In the imaging lens, the rear group includes a negative meniscus lens that is disposed closer to the object side and has a surface convex toward the object side, and a biconvex lens that is disposed closer to the image side. In addition, all the lenses constituting the imaging lens are single lenses.
摘要翻译：公开了一种能够改善耐候性，降低性能劣化并获得从可见波长区域到近红外波长区域的宽波长区域优异的光学性能的成像透镜。用于形成可见光和近红外光的图像的成像透镜从物体侧起依次包括具有正光焦度的前组; 孔径光阑; 以及具有负功率的后组。在成像透镜中，后组包括靠近物体侧设置并且朝向物体侧具有凸面的负弯月形透镜和靠近图像侧设置的双凸透镜。另外，构成摄像透镜的所有透镜都是单透镜。

40. 发明申请

US20100103539A1 IMAGING LENS AND IMAGING APPARATUS USING IMAGING LENS 失效
标题翻译：使用成像镜头成像镜头和成像设备
公开(公告)号：US20100103539A1
公开(公告)日：2010-04-29
申请号：US12580843
申请日：2009-10-16
申请人： Yu Kitahara
发明人： Yu Kitahara
IPC分类号： G02B9/08 , G02B9/10
CPC分类号： G02B9/60
摘要： An imaging lens includes, in order from an object side, a first lens group having a positive power, an aperture diaphragm, and a second lens group having a positive or negative power. The first lens group includes, in order from the object side, a first lens which is a biconcave lens, a second lens that has a positive power and includes a convex image-side surface, and a third lens that has a positive power and includes a convex object-side surface. The second lens group includes, in order from the object side, a fourth lens that has a negative power and includes a concave image-side surface, and a fifth lens which is a biconvex lens. Each of the first to fifth lenses is a single spherical glass lens.
摘要翻译：成像透镜从物体侧依次包括具有正光焦度的第一透镜组，具有正或负光焦度的孔径光阑和第二透镜组。第一透镜组从物体依次包括作为双凹透镜的第一透镜，具有正光焦度并包括凸像侧表面的第二透镜，以及具有正光焦度的第三透镜，凸起的物体侧表面。第二透镜组从物体侧依次包括具有负光焦度并包括凹面像侧表面的第四透镜和作为双凸透镜的第五透镜。第一至第五透镜中的每一个是单个球形玻璃透镜。

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