公开(公告)号：US07218813B2

公开(公告)日：2007-05-15

申请号：US10525437

申请日：2003-08-21

申请人： Yorishige Ishii ,  Tetsuo Iwaki ,  Toshihiro Tamura

发明人： Yorishige Ishii ,  Tetsuo Iwaki ,  Toshihiro Tamura

IPC分类号： G02B6/32 ,  H04J14/02

CPC分类号： G02B6/4202

摘要： An optical communication system has a plastic optical fiber (POF) and an optical communication module. The POF has a spherical end surface, and light emitted from the spherical end surface has an NA of 0.35 or lower. The POF is installed in the module such that a light receiving surface of a light receiving element (PD) is at a distance, d, from an apex of the spherical end surface. The distance, d, is within a range of 0

摘要翻译： 光通信系统具有塑料光纤（POF）和光通信模块。 POF具有球面端面，从球面端射出的光的NA为0.35以下。 POF安装在模块中，使得光接收元件（PD）的光接收表面距离球形端表面的顶点处于距离d。 当PD直径不大于D时，距离d在0

公开(公告)号：US20050031353A1

公开(公告)日：2005-02-10

申请号：US10501186

申请日：2003-04-02

申请人： Yorishige Ishii ,  Toshihiro Tamura ,  Tetsuo Iwaki ,  Yukio Kurata

发明人： Yorishige Ishii ,  Toshihiro Tamura ,  Tetsuo Iwaki ,  Yukio Kurata

IPC分类号： G02B6/42 ,  H04B10/00 ,  H04B10/2507 ,  H04B10/2581 ,  H04B10/12

CPC分类号： H04B10/25

摘要： A position of a first module (12a) with respect to an optical fiber (11) is determined in accordance with a receiving efficiency at the first module (12a) with respect to light emitted from the optical fiber (11). Power of light coupled into the optical fiber (11) from the first module (12a) is set in accordance with a value of a far-end reflectivity on a side of the first module (12a) in the position so as to satisfy a predetermined formula. By giving priority to determining a condition that significantly influences an improvement of an eye opening ratio, it is possible to manufacture an optical communication system at a low cost and with more freedom in manufacturing. Thus provided is a method of manufacturing an optical communication system, the method allowing for manufacturing an optical communication system at a low cost and with more freedom in manufacturing.

摘要翻译： 第一模块（12a）相对于光纤（11）的位置根据第一模块（12a）相对于从光纤（11）发射的光的接收效率来确定。 从第一模块（12a）耦合到光纤（11）中的光的功率根据在第一模块（12a）的一侧上的远端反射率的值被设定为满足预定的 式。 通过优先确定显着影响眼睛开度比的改善的条件，可以以低成本制造光通信系统并且具有更多的制造自由度。 因此，提供了一种制造光通信系统的方法，该方法允许以低成本制造光通信系统并且具有更多的制造自由度。

公开(公告)号：US07319820B2

公开(公告)日：2008-01-15

申请号：US10501186

申请日：2003-04-02

申请人： Yorishige Ishii ,  Toshihiro Tamura ,  Tetsuo Iwaki ,  Yukio Kurata

发明人： Yorishige Ishii ,  Toshihiro Tamura ,  Tetsuo Iwaki ,  Yukio Kurata

IPC分类号： H04B10/12 ,  H04B10/00

CPC分类号： H04B10/25

摘要： A position of a first module (12a) with respect to an optical fiber (11) is determined in accordance with a receiving efficiency at the first module (12a) with respect to light emitted from the optical fiber (11). Power of light coupled into the optical fiber (11) from the first module (12a) is set in accordance with a value of a far-end reflectivity on a side of the first module (12a) in the position so as to satisfy a predetermined formula. By giving priority to determining a condition that significantly influences an improvement of an eye opening ratio, it is possible to manufacture an optical communication system at a low cost and with more freedom in manufacturing. Thus provided is a method of manufacturing an optical communication system, the method allowing for manufacturing an optical communication system at a low cost and with more freedom in manufacturing.

摘要翻译： 第一模块（12a）相对于光纤（11）的位置根据第一模块（12a）相对于从光纤（11）发射的光的接收效率来确定。 从第一模块（12a）耦合到光纤（11）中的光的功率根据第一模块（12a）侧的远端反射率的值被设定为满足 一个预定的公式。 通过优先确定显着影响眼睛开度比的改善的条件，可以以低成本制造光通信系统并且具有更多的制造自由度。 因此，提供了一种制造光通信系统的方法，该方法允许以低成本制造光通信系统并且具有更多的制造自由度。

公开(公告)号：US20050232537A1

公开(公告)日：2005-10-20

申请号：US10525437

申请日：2003-08-21

申请人： Yorishige Ishii ,  Tetsuo Iwaki ,  Toshihiro Tamura

发明人： Yorishige Ishii ,  Tetsuo Iwaki ,  Toshihiro Tamura

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02B6/4202

摘要： An optical communication system has a plastic optical fiber (POF) and an optical communication module. The POF has a spherical end surface, and light emitted from the spherical end surface has an NA of 0.35 or lower. The POF is installed in the module such that a light receiving surface of a light receiving element (PD) is at a distance, d, from an apex of the spherical end surface. The distance, d, is within a range of 0

摘要翻译： 光通信系统具有塑料光纤（POF）和光通信模块。 POF具有球面端面，从球面端射出的光的NA为0.35以下。 POF安装在模块中，使得光接收元件（PD）的光接收表面距离球形端表面的顶点处于距离d。 当PD直径不大于D时，距离d在0

公开(公告)号：US20070114547A1

公开(公告)日：2007-05-24

申请号：US10577304

申请日：2004-10-28

申请人： Hideaki Fujita ,  Tetsuo Iwaki ,  Yorishige Ishii

发明人： Hideaki Fujita ,  Tetsuo Iwaki ,  Yorishige Ishii

IPC分类号： H01L33/00 ,  H01L21/00

CPC分类号： H01L31/0203 ,  G02B6/4206 ,  G02B6/423 ,  G02B6/4248 ,  H01L31/02325 ,  H01L33/54 ,  H01L33/56 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/49107 ,  H01L2924/01019 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/12041 ,  H01L2924/15151 ,  H01L2924/181 ,  H01L2924/1815 ,  H01L2924/19107 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00012

摘要： A sealing structure includes a lead frame having a light transmitting section, an optical element having an optical surface which is directed to the light transmitting section and is mounted on the lead frame in such a state that the optical element blocks the light transmitting section at its one end portion in an axis direction, and a sealing body that is formed in a region excluding an optical path and seals the optical element. By forming the sealing body in the region excluding the optical path, the light usage efficiency can be prevented from decreasing even when a material that can increase the environmental resistance is added to the sealing body. Further, since the optical element is mounted on the lead frame with its face down, the sealing structure can be easily formed even when the optical element is small-sized.

摘要翻译： 密封结构包括具有光透射部分的引线框架，具有光学表面的光学元件，该光学元件被引导到光透射部分并且被安装在引线框架上，使得光学元件将光传输部分阻挡在其上 在轴向上的一个端部，以及形成在除了光路之外的区域中并密封光学元件的密封体。 通过在除了光路之外的区域中形成密封体，即使当向密封体添加可以增加耐环境性的材料时，也可以防止光的使用效率降低。 此外，由于光学元件面朝下地安装在引线框架上，所以即使光学元件小型化也能够容易地形成密封结构。

公开(公告)号：US07295504B2

公开(公告)日：2007-11-13

申请号：US10374849

申请日：2003-02-25

申请人： Tazuko Kitazawa ,  Tetsuo Iwaki

发明人： Tazuko Kitazawa ,  Tetsuo Iwaki

IPC分类号： G11B7/00

CPC分类号： G11B7/1398 ,  G11B7/1353 ,  G11B7/13922

摘要： A beam shaping element includes a set of diffraction gratings on each surface thereof, in such a manner that intervals between the gratings farer from a vicinity of an optical axis and nearer to a periphery are narrower, wherein each interval between the respective gratings monotonously increases or monotonously decreases along a direction in which each grating-shaped pattern extends. According to the arrangement above, it is possible to correct displacement of a light emitting point of a light source by simply performing a positional adjustment within a plane that is orthogonal to the optical axis. Thus, it is possible to provide the beam shaping element that enables to correct the displacement of the light emitting point of the light source simply by performing positional adjustment in the plane vertical to the optical axis, thereby making it unnecessary to perform positional adjustment along the optical axis direction, and to provide a light source unit and an optical pickup using the beam shaping element.

摘要翻译： 光束成形元件包括在其每个表面上的一组衍射光栅，使得从光轴附近更靠近周边的光栅之间的间隔更窄，其中各个光栅之间的每个间隔单调增加或 沿着每个格子状图案延伸的方向单调减少。 根据上述结构，可以通过简单地在与光轴正交的平面内执行位置调整来校正光源的发光点的位移。 因此，可以简单地通过在垂直于光轴的平面中进行位置调整来提供能够校正光源的发光点的位移的光束整形元件，从而不需要沿着光轴的位置调整 光轴方向，并且提供使用光束成形元件的光源单元和光学拾取器。

公开(公告)号：US06577341B1

公开(公告)日：2003-06-10

申请号：US08950361

申请日：1997-10-14

申请人： Eiji Yamada ,  Toshiaki Harada ,  Tetsuo Iwaki ,  Tohru Okuda

发明人： Eiji Yamada ,  Toshiaki Harada ,  Tetsuo Iwaki ,  Tohru Okuda

IPC分类号： H04N314

CPC分类号： H04N9/045 ,  H04N5/349 ,  H04N2209/046

摘要： An imaging apparatus reduces the influence of the movement of hands and of the motion of an object on a high resolution picture image. Picture image light from the object passes through an optical system and light-transmitting domains of a color filter provided at the light incident side of an imaging device. The light-transmitting domains transmit only predetermined chromatic lights of the picture image light to input to corresponding photo-receiving domains of the imaging device. The imaging device is a two-picture element mixed reading type device. In a high resolution mode, an image forming point of the picture image light is moved to two places in parallel, and the picture image light is formed at each image forming point to image the picture image light. Then, the signal processing circuit combines the two original picture image signals whose image forming points during the imaging operation are different to generate a single output picture image signal. Thereby, an equivalent imaging time in imaging a single output picture image may be shortened.

摘要翻译： 成像装置减少了手的运动和物体的运动对高分辨率图像的影响。 来自物体的图像光通过设置在成像装置的光入射侧的滤色器的光学系统和透光区域。 透光域仅传输图像光的预定彩色光，以输入到成像装置的相应的光接收区域。 成像装置是双元素混合读取型装置。 在高分辨率模式中，图像光的图像形成点平行移动到两个位置，并且在每个图像形成点处形成图像光以对图像图像进行成像。 然后，信号处理电路组合成像操作期间的图像形成点不同的两个原始图像图像信号，以生成单个输出图像图像信号。 因此，可以缩短对单个输出图像进行成像的等效成像时间。

公开(公告)号：US06266086B1

公开(公告)日：2001-07-24

申请号：US08895244

申请日：1997-07-16

申请人： Hideo Okada ,  Tetsuo Iwaki ,  Tohru Okuda

发明人： Hideo Okada ,  Tetsuo Iwaki ,  Tohru Okuda

IPC分类号： H04N5225

CPC分类号： H04N5/23258 ,  H04N5/2259 ,  H04N5/23248 ,  H04N5/23287

摘要： An imaging apparatus includes a solid-state imaging element having a matrix of pixels thereon, an optical series for entering a subject image into the solid-state imaging element, and an image shifting mechanism for relatively shifting the subject image in 2-D with respect to the solid-state imaging element. A control circuit is further included for controlling an operation of the image shifting mechanism. Still further, an image synthesizing circuit is included for synthesizing a plurality of images shifted by the image shifting mechanism, along with a moving amount detecting unit for detecting a moving amount of the subject image on the solid-state imaging element. Finally, the imaging apparatus includes a shift amount generating unit for generating an image shift amount for the subject image first, and thence a correction image shift amount based on the image shift amount and moving amount, based on which the image shifting mechanism shifts the subject image. The above arrangement makes it possible to correct a movement of the subject image formed by the imaging apparatus, thereby realizing a high-resolution image.

摘要翻译： 一种成像装置包括其上具有像素矩阵的固态成像元件，用于将被摄体图像输入到固态成像元件的光学系列，以及用于相对地将二维中的被摄体图像相对移动的图像移动机构， 到固态成像元件。 还包括用于控制图像转换机构的操作的控制电路。 另外，包括用于合成由图像移动机构移位的多个图像的图像合成电路以及用于检测固态成像元件上的被摄体图像的移动量​​的移动量检测单元。 最后，成像装置包括：偏移量产生单元，用于首先产生用于被摄体图像的图像偏移量，然后根据图像偏移量和移动量基于图像移位机构移动被检体的校正图像偏移量 图片。 通过上述结构，能够校正由摄像装置形成的被摄体图像的移动，从而实现高分辨率的图像。

公开(公告)号：US5517369A

公开(公告)日：1996-05-14

申请号：US348161

申请日：1994-11-28

申请人： Hitoshi Takeuchi ,  Eiji Yamada ,  Chiaki Yamawaki ,  Tetsuo Iwaki

发明人： Hitoshi Takeuchi ,  Eiji Yamada ,  Chiaki Yamawaki ,  Tetsuo Iwaki

IPC分类号： G11B5/00 ,  G11B5/008 ,  G11B5/02 ,  G11B5/035 ,  G11B5/09 ,  G11B5/39 ,  G11B5/49 ,  G11B15/02 ,  G11B15/12

CPC分类号： G11B5/3961 ,  G11B15/02 ,  G11B15/12 ,  G11B5/02 ,  G11B5/035 ,  G11B5/09 ,  G11B5/4992 ,  G11B2005/0016 ,  G11B5/00813

摘要： In a multi-track magnetic signal reproducing apparatus, a plurality of MR heads including MR (Magneto Resistance Effect) elements are provided correspondingly to tracks on a magnetic tape. At the time of reproduction, constant current from a constant current power supply is sequentially supplied as pulse-shaped current for detecting a signal to each MR element by a switching operation by switch in response to a prescribed clock signal, and output voltage from each MR element related to reproduction of a magnetic signal on a corresponding track is sequentially provided to one input side of a differential amplifier. In differential amplifier, the offset voltage of each MR element provided to the other input side and the above-described output voltage are differentially amplified and only voltage due to the reproducing magnetic signal of each track is accurately extracted. Accordingly, the supply of pulse-shaped current effectively suppresses increase in the amount of consumption current regardless of the number of tracks on the tape (or the number of heads), and since amplifier is shared between the tracks, the number of necessary terminals for such a multi-track MR head is reduced.

摘要翻译： 在多磁道磁信号重放装置中，相应于磁带上的轨道提供包括MR（磁阻效应）元件的多个MR磁头。 在再现时，来自恒流电源的恒定电流作为脉冲形电流被顺序提供，用于通过响应于规定的时钟信号的开关的切换操作检测每个MR元件的信号，并且从每个MR输出电压 将与相应轨道上的磁信号的再现相关的元件依次提供给差分放大器的一个输入侧。 在差分放大器中，提供给另一输入侧的每个MR元件的偏移电压和上述输出电压被差分放大，并且仅准确地提取由于每个磁道的再现磁信号引起的电压。 因此，脉冲电流的供给有效地抑制消耗电流量的增加，而与带上的磁道数（或磁头数）无关，并且由于放大器在磁道之间共享，所以需要的端子的数量 这样的多轨MR磁头减少了。

公开(公告)号：US06381208B1

公开(公告)日：2002-04-30

申请号：US09565950

申请日：2000-05-05

申请人： Kazutaka Abe ,  Tetsuo Iwaki

发明人： Kazutaka Abe ,  Tetsuo Iwaki

IPC分类号： G11B700

CPC分类号： G11B7/13925 ,  G11B7/00736 ,  G11B7/0945 ,  G11B7/1374 ,  G11B2007/0013 ,  G11B2007/13727

摘要： Thickness information and refractive index information of a light transmitting layer are recorded in advance on an optical recording medium. Based on the thickness information and the refractive index information of the light transmitting layer, space between two lens units of an objective lens system is adjusted in an optical recording and reproducing apparatus, so that spherical aberration is adjusted. Accordingly, in the optical recording and reproducing apparatus using two lens units, it becomes possible to correctly record or reproduce the information to and from the optical recording medium.

摘要翻译： 光传输层的厚度信息和折射率信息预先记录在光记录介质上。 基于厚度信息和透光层的折射率信息，在光学记录和再现装置中调整物镜系统的两个透镜单元之间的空间，从而调节球面像差。 因此，在使用两个透镜单元的光学记录和再现设备中，可以将信息正确地记录或再现到光学记录介质上。