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1. 发明授权

US4572645A Exposure control device for camera 失效
标题翻译：相机曝光控制装置
公开(公告)号：US4572645A
公开(公告)日：1986-02-25
申请号：US670559
申请日：1984-11-13
申请人： Yoichi Yoshida , Akihiko Hashimoto , Tatsuya Suzuki , Hitoshi Shirai , Hiroshi Akitake , Hirotsugu Nakazawa
发明人： Yoichi Yoshida , Akihiko Hashimoto , Tatsuya Suzuki , Hitoshi Shirai , Hiroshi Akitake , Hirotsugu Nakazawa
IPC分类号： G03B7/097 , G03B7/091 , G03B7/093 , G03B9/24
CPC分类号： G03B7/097
摘要： An exposure control device for camera includes a detector for detecting the opening of a sector shutter. By detecting an actual opening of the sector shutter, an amount of incremental exposure is calculated based on the opening and the corresponding time interval. Such amount is accumulated to provide an accumulated value. An amount of proper exposure is determined on the basis of photographing information including the brightness of an object being photographed and a film speed. The sector shutter is controlled in accordance with the accumulated value and the amount of proper exposure.
摘要翻译：用于照相机的曝光控制装置包括用于检测扇形快门的打开的检测器。通过检测扇区快门的实际打开，基于打开和对应的时间间隔来计算增量曝光量。这样的数量被累积以提供累计值。基于包括拍摄对象的亮度和胶片速度的拍摄信息来确定适当的曝光量。扇区快门根据累积值和正确曝光量进行控制。

2. 发明授权

US6157186A Rotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiation 失效
标题翻译：旋转检测装置具有由树脂材料制成的壳体，并且具有用于吸收热辐射的间隙槽
公开(公告)号：US6157186A
公开(公告)日：2000-12-05
申请号：US96188
申请日：1998-06-12
申请人： Yuhide Aoki , Hirotsugu Nakazawa
发明人： Yuhide Aoki , Hirotsugu Nakazawa
IPC分类号： G01D5/245 , G01D11/24 , G01P1/02 , G01P3/488 , G01P3/48
CPC分类号： G01P1/02 , G01D11/245 , G01P3/488
摘要： A rotation detecting apparatus comprises a casing body including a head portion, an installation bracket portion and a connector portion. A recess portion is formed at a side surface of the head portion. A magnet, a Hall-effect device and a circuit base plate are installed in the recess portion and are then covered with a sealing member. Further, a clearance groove is formed in the vicinity of a wall defining the recess portion. Therefore, the number of parts and the production cost of the apparatus are reduced, and the waterproof performance thereof is improved.
摘要翻译：旋转检测装置包括：壳体，其包括头部，安装支架部分和连接器部分。在头部的侧面形成有凹部。磁体，霍尔效应器件和电路基板安装在凹部中，然后被密封构件覆盖。此外，在限定凹部的壁的附近形成间隙槽。因此，减少了设备的数量和生产成本，并提高了其防水性能。

3. 发明授权

US4914464A Focussing apparatus for camera with zoom lens 失效
标题翻译：用于具有变焦镜头的相机的聚焦装置
公开(公告)号：US4914464A
公开(公告)日：1990-04-03
申请号：US304801
申请日：1989-01-31
申请人： Miyazawa Azuma , Hirotsugu Nakazawa
发明人： Miyazawa Azuma , Hirotsugu Nakazawa
IPC分类号： G02B7/28
CPC分类号： G02B7/282
摘要： A focussing apparatus and a focus correcting apparatus both derive information representing a distance from an AF sensor. A CPU stores lens travels at the telephoto end position, and distance information is utilized to retrieve one of the lens travels. A zoom coefficient is found in accordance with a zoom encoder value, and the CPU performs an arithmetic operation to derive a lens travel for a particular focal length which is currently being used. The zoom encoder value is also used to read deviation data D.sub.k, which relates to a variation from camera to camera, from E.sup.2 -PROM, and such data is used to correct the lens travel to determine a final lens travel.
摘要翻译：聚焦装置和聚焦校正装置都派生表示距离AF传感器的距离的信息。 CPU在远摄端位置存储镜头行进，并且利用距离信息来检索镜头行进中的一个。根据变焦编码器值找到变焦系数，并且CPU执行算术运算以导出当前正在使用的特定焦距的透镜行程。变焦编码器值还用于读取与E2-PROM相关的从摄像机到摄像机的变化的偏差数据Dk，并且这些数据用于校正镜头行程以确定最终镜头行进。

4. 发明授权

US06275027B1 Rotation angle sensor 失效
标题翻译：旋转角传感器
公开(公告)号：US06275027B1
公开(公告)日：2001-08-14
申请号：US09396424
申请日：1999-09-15
申请人： Yoshihiro Kogure , Hirotsugu Nakazawa
发明人： Yoshihiro Kogure , Hirotsugu Nakazawa
IPC分类号： G01B730
CPC分类号： G01B7/30 , G01D5/145
摘要： A rotation angle sensor including a magnet rotatable about an axis, a first and second yokes arranged around said magnet and diametrically opposed to each other, and a Hall effect device disposed between the first and second yokes. The yokes include arcuately curved pole piece portions radially opposed to the magnet and overhang portions extending angularly inwardly from the pole piece portions across the axis of the magnet, respectively. The overhang portions have a generally sector shape and cooperate to define a gap therebetween within which the Hall effect device is disposed. Leakage flux reducing members circumferentially extend between the pole piece portions.
摘要翻译：一种旋转角传感器，包括可围绕轴线旋转的磁体，围绕所述磁体设置并且彼此径向相对的第一和第二磁轭以及设置在第一和第二磁轭之间的霍尔效应装置。轭铁包括与磁体径向相对的弧形极片部分和从磁极部分分别穿过磁体的轴线成角度地向内延伸的突出部分。突出部分具有大致的扇形形状并配合以在其间设置霍尔效应装置的间隙。泄漏通量减少部件在极靴部分之间周向延伸。

5. 发明授权

US06268722B1 Rotation angle sensor having improved magnetic leakage effect prevention and reduction in parts 失效
标题翻译：旋转角度传感器具有改善的磁泄漏效果，防止和减少部件
公开(公告)号：US06268722B1
公开(公告)日：2001-07-31
申请号：US09271161
申请日：1999-03-17
申请人： Yoshihiro Kogure , Hirotsugu Nakazawa
发明人： Yoshihiro Kogure , Hirotsugu Nakazawa
IPC分类号： G01B730
CPC分类号： G01D5/145
摘要： A rotation angle sensor is provided, including a casing, and a magnet positioned in the casing. The magnet has a first magnetic pole end and a second magnetic pole end. First and second yokes are positioned at a first predetermined space relative to the first magnetic pole end of the magnet, and a third yoke is positioned at a predetermined space relative to the second magnetic pole end of the magnet. The third yoke is further positioned between the magnet and an extending portion of the first yoke, and is also positioned between the magnet and an extending portion of the second yoke. A first signal output element, which is positioned between the third yoke and the extended portion of the first yoke, outputs a first signal corresponding to an area ratio between the magnet and the first yoke. A second signal output element, which is positioned between the third yoke and the extended portion of the second yoke, outputs a second signal corresponding to an area ratio between the magnet and the second yoke. In addition, a magnetic shielding portion is positioned above the magnet, wherein the magnetic shielding portion interrupts leakage magnet flux of the magnet, and wherein the magnetic shielding portion and the third yoke are integrally formed of a single-piece construction.
摘要翻译：提供旋转角度传感器，包括壳体和定位在壳体中的磁体。磁体具有第一磁极端和第二磁极端。第一和第二轭相对于磁体的第一磁极端位于第一预定空间，第三磁轭相对于磁体的第二磁极端定位在预定的空间。第三磁轭进一步位于磁体和第一磁轭的延伸部分之间，并且还位于磁体和第二磁轭的延伸部分之间。位于第一磁轭和第一磁轭的延伸部分之间的第一信号输出元件输出对应于磁铁与第一磁轭之间的面积比的第一信号。位于第三磁轭和第二磁轭的延伸部分之间的第二信号输出元件输出对应于磁体和第二磁轭之间的面积比的第二信号。此外，磁屏蔽部分位于磁体上方，其中磁屏蔽部分中断磁体的漏磁通，并且其中磁屏蔽部分和第三磁轭由单片结构整体形成。

6. 发明授权

US4849781A Range detector 失效
标题翻译：量程检测器
公开(公告)号：US4849781A
公开(公告)日：1989-07-18
申请号：US136725
申请日：1987-12-22
申请人： Hirotsugu Nakazawa , Mitsugi Fukushima
发明人： Hirotsugu Nakazawa , Mitsugi Fukushima
IPC分类号： G01S17/46
CPC分类号： G01S17/48
摘要： A range detector detects a range to an object to be measured by projecting light rays from a light source onto the object and producing an output signal by receiving light rays reflected by the object by a single semiconductor position detecting element (PSD) disposed at a given base length apart from the light source. The position detecting element is provided with signal electrodes of N pieces (N.ltoreq.3) in a separate manner and in a direction of the base length so that a light receiving plane of the PSD is divided into (N-1) areas. The range detector is capable of reducing a detectable close range so as to cover a very wide range by selectively deciding an output from these signal electrodes in accordance with a range to be measured without degrading accuracy of range measurements.
摘要翻译：范围检测器通过将来自光源的光线投射到物体上来检测对待测对象的范围，并且通过由设置在给定的位置处的单个半导体位置检测元件（PSD）接收由物体反射的光线来产生输出信号距离光源的基极长度。位置检测元件以分开的方式和基底长度的方向设置有N个（N 3）的信号电极，使得PSD的光接收平面被划分为（N-1）个区域。范围检测器能够通过根据要测量的范围选择性地决定来自这些信号电极的输出而覆盖非常宽的范围，而不降低范围测量的精度。

7. 发明授权

US06462537B2 Rotation angle sensor 失效
标题翻译：旋转角传感器
公开(公告)号：US06462537B2
公开(公告)日：2002-10-08
申请号：US09925481
申请日：2001-08-10
申请人： Yoshihiro Kogure , Hirotsugu Nakazawa
发明人： Yoshihiro Kogure , Hirotsugu Nakazawa
IPC分类号： G01B714
CPC分类号： G01B7/30 , G01D5/145
摘要： A rotation angle sensor including a magnet rotatable about an axis, a first and second yokes arranged around said magnet and diametrically opposed to each other, and a Hall effect device disposed between the first and second yokes. The yokes include arcuately curved pole piece portions radially opposed to the magnet and overhang portions extending angularly inwardly from the pole piece portions across the axis of the magnet, respectively. The overhang portions have a generally sector shape and cooperate to define a gap therebetween within which the Hall effect device is disposed. Leakage flux reducing members circumferentially extends between the pole piece portions.
摘要翻译：一种旋转角传感器，包括可围绕轴线旋转的磁体，围绕所述磁体设置并且彼此径向相对的第一和第二磁轭以及设置在第一和第二磁轭之间的霍尔效应装置。轭铁包括与磁体径向相对的弧形极片部分和从磁极部分分别穿过磁体的轴线成角度地向内延伸的突出部分。突出部分具有大致的扇形形状并配合以在其间设置霍尔效应装置的间隙。泄漏通量减少部件在极片部分之间周向延伸。

8. 发明授权

US5889400A Sensor arranged for detecting angular displacement and direction of valve axle 失效
标题翻译：传感器布置用于检测阀轴的角位移和方向
公开(公告)号：US5889400A
公开(公告)日：1999-03-30
申请号：US813084
申请日：1997-03-07
申请人： Hirotsugu Nakazawa
发明人： Hirotsugu Nakazawa
IPC分类号： G01D5/14 , G01B7/30 , G01D5/18
CPC分类号： G01D5/145
摘要： A sensor used to detect an opening angle of, for example, a throttle valve comprising: a pivotable valve axle arranged so as to be pivoted through a pivoted angle; a magnet; a first magnetic circuit, through which a first magnetic flux branched from a total magnetic flux developed from the magnet is passed; a second magnetic circuit, through which a second magnetic flux branched from the total magnetic flux developed from the magnet is passed; a pair of first and second Hall effect devices, the first Hall effect device being interposed in the first magnetic circuit so as to output a first signal according to the first magnetic flux passing therethrough and the second Hall effect device being interposed in the second magnetic circuit so as to output a second signal according to the second magnetic flux passing therethrough; and a calculation circuit, in response to the first and second signals of the first and second Hall effect devices, for calculating a level of a detection signal (So1, So2) of the sensor from the first and second signals outputted from the first and second Hall effect devices and for outputting the detection signal, the level of the detection signal being linearly varied according to the pivoted angle of the valve axle.
摘要翻译：一种用于检测例如节流阀的开启角度的传感器，包括：可枢转的阀轴，其以枢转的角度被枢转; 磁铁第一磁路，通过从磁体产生的总磁通分支出的第一磁通; 第二磁路，从磁体产生的总磁通量分支的第二磁通通过该磁路; 一对第一和第二霍尔效应装置，所述第一霍尔效应装置插入在所述第一磁路中，以根据穿过其中的第一磁通输出第一信号，并且所述第二霍尔效应装置插入所述第二磁路中以便根据穿过其中的第二磁通量输出第二信号; 以及计算电路，响应于第一和第二霍尔效应器件的第一和第二信号，用于根据从第一和第二霍尔效应器件输出的第一和第二信号计算传感器的检测信号（So1，So2）的电平霍尔效应装置并且用于输出检测信号，检测信号的电平根据阀轴的枢转角线性地变化。

9. 发明授权

US5811968A Rotation angle sensor 失效
标题翻译：旋转角传感器
公开(公告)号：US5811968A
公开(公告)日：1998-09-22
申请号：US774027
申请日：1996-12-27
申请人： Hirotsugu Nakazawa , Yuhide Aoki
发明人： Hirotsugu Nakazawa , Yuhide Aoki
IPC分类号： G01D5/14 , G01B7/30 , F02D9/00
CPC分类号： G01D5/145
摘要： A rotation angle sensor for sensing a rotation angle of a pivotal member, such a throttle valve shaft, comprises a first unit including a magnet member and a second unit including first, second and third magnetic piece members which are circumferentially arranged to concentrically surrounds the magnet member. The first and second magnetic piece members are symmetrically arranged with respect to the magnet member. A structure is employed for connecting one of the first and second units to the pivotal member. A first electric device is employed for generating a first signal in accordance with a density of magnetic flux produced between the first and third magnetic piece members, and a second electric device is employed for generating a second signal in accordance with a density of magnetic flux produced between the second and third magnetic piece members.
摘要翻译：用于感测枢转构件（例如节流阀轴）的旋转角度的旋转角度传感器包括：第一单元，包括磁体构件和包括第一，第二和第三磁性构件的第二单元，所述第一，第二和第三磁性构件周向地布置成同心地围绕磁体会员。第一和第二磁性部件相对于磁体部件对称地设置。采用将第一和第二单元中的一个连接到枢转构件的结构。第一电气装置用于根据在第一和第三磁性件之间产生的磁通密度产生第一信号，并且采用第二电子装置根据产生的磁通密度产生第二信号在第二和第三磁片部件之间。

10. 发明授权

US4885600A Zoom mechanism for a zoom lens in cameras and the like 失效
标题翻译：相机等中的变焦镜头的变焦机构
公开(公告)号：US4885600A
公开(公告)日：1989-12-05
申请号：US164568
申请日：1988-03-07
申请人： Kazuyuki Iwasa , Hirotsugu Nakazawa
发明人： Kazuyuki Iwasa , Hirotsugu Nakazawa
IPC分类号： G02B7/08 , G02B7/10 , G02B7/28 , G03B5/00
CPC分类号： G02B7/282 , G02B7/102
摘要： A zoom mechanism comprises a zoom system lens holding frame composed of at least one frame for changing its focal length by moving it in a direction of the optical axis, a focus system lens holding frame which moves together with the zoom system lens holding frame during a zooming operation and is held in the latter so as to be movable in a direction of the optical axis during a focusing operation, a detector for detecting movement of the zoom system lens holding frame from a predetermined reference position, a memory unit for storing a difference in position of the focus system lens holding frame from its normal position in relation to movement of the zoom system lens holding frame from the reference position as an amount of correction and for delivering a stored value corresponding to movement of the zoom system lens holding frame from the reference position a which movement is detected by the detector, and a controller for moving the focus system lens holding frame in relation to the zoom system lens holding frame in relation to the zoom system lens holding frame in a direction of the optical axis by an output of the memory unit.
摘要翻译：变焦机构包括由至少一个框架组成的变焦系统透镜保持框架，用于通过沿着光轴的方向移动来改变其焦距;焦点系统透镜保持框架，其在变焦系统透镜保持框架缩放操作并被保持在后者中，以便可以在聚焦操作期间在光轴的方向上移动，用于检测变焦系统透镜保持框架从预定基准位置的移动的检测器，用于存储差异的存储单元相对于缩放系统透镜保持框架从参考位置的移动而将对焦系统透镜保持框架从其正常位置的位置调整为校正量，并且用于将与变焦系统透镜保持框架的移动相对应的存储值传送由检测器检测到运动的基准位置a，以及用于相对于第三个移动聚焦系统透镜保持框架的控制器 e变焦系统透镜保持框架相对于变焦系统透镜保持框架在光轴的方向上由存储器单元的输出。

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