公开(公告)号：US6046555A

公开(公告)日：2000-04-04

申请号：US156772

申请日：1998-10-23

申请人： Gabor Szoboszlay

发明人： Gabor Szoboszlay

IPC分类号： H02P6/16 ,  H02P6/20 ,  H02P6/12

CPC分类号： H02P6/20 ,  Y02P80/116

摘要： A closed-loop system is implemented during startup for accurately determining the magnet offset between a set of magnets and a set of windings of a brushless DC motor. The determined magnetic offset value is used to align a position sensor to the actual angular distance between the windings and the magnets. The alignment of the position sensor setting is in turn used to provide a commutation current that allows the motor to operate at maximum efficiency.

摘要翻译： 在启动期间实现闭环系统以精确地确定一组磁体和无刷直流电动机的一组绕组之间的磁体偏移。 确定的磁偏移值用于将位置传感器对准绕组和磁体之间的实际角距离。 位置传感器设置的对准又被用于提供允许电动机以最大效率操作的换向电流。

公开(公告)号：US5898525A

公开(公告)日：1999-04-27

申请号：US130743

申请日：1998-08-07

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B7/28 ,  G02B13/18 ,  G02B15/17 ,  G02B15/20 ,  H04N5/232 ,  G02B15/14

CPC分类号： G02B15/17

摘要： A high-performance zoom lens having a long back focus and thus ideally suited to electronic imaging equipment. The zoom lens comprises a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, a third lens group G3 having negative refractive power, a fourth lens group G4 having positive refractive power, and fifth lens group G5 having positive refractive power. When zooming from the maximum wide-angle state to the maximum telephoto state, the air space between first lens group G1 and second lens group G2 increases, the air space between second lens group G2 and third lens group G3 changes linearly or non-linearly, and the air space between fourth lens group G4 and fifth lens group G5 changes linearly or non-linearly. The zoom lens preferable satisfies at least one of a number of design conditions.

摘要翻译： 具有长后焦距的高性能变焦镜头，因此理想地适用于电子成像设备。 变焦透镜包括具有正屈光力的第一透镜组G1，具有负折光力的第二透镜组G2，具有负折光力的第三透镜组G3，具有正折光力的第四透镜组G4以及具有正折射光焦度的第五透镜组G4， 正屈光力。 当从最大广角状态变焦到最大长焦状态时，第一透镜组G1和第二透镜组G2之间的空间间隙增加，第二透镜组G2和第三透镜组G3之间的空气空间线性或非线性地改变， 并且第四透镜组G4和第五透镜组G5之间的空气空间线性或非线性地改变。 变焦透镜优选地满足多个设计条件中的至少一个。

公开(公告)号：US5877845A

公开(公告)日：1999-03-02

申请号：US896128

申请日：1997-07-17

申请人： Susumu Makinouchi

发明人： Susumu Makinouchi

IPC分类号： G03F7/20 ,  G03F9/00 ,  G03D27/53

CPC分类号： G03F7/70358 ,  G03F7/70725 ,  G03F9/70

摘要： A scanning exposure apparatus for scan-exposing the image of a mask pattern on a mask onto a substrate by synchronously moving the mask and the substrate with respect to an exposing radiation flux is provided. The scanning exposure apparatus includes a movable mask stage for holding the mask, a movable substrate stage for holding the substrate, a first detector outputting a first signal indicating the position of the substrate stage, and a second detector outputting a second signal indicating the position of the mask stage. The scanning exposure apparatus further includes a controller processing the first signal to derive a target position of the mask stage, the controller receiving the second signal to derive a deviation of the mask stage from the target position, the controller further deriving an error anticipation signal in accordance with deviations in mask stage movement measured in advance of scan-exposure, and a mask stage controller for moving the mask stage in accordance with the derived deviation of the mask stage from the target position and the error anticipation signal to maintain the position of the mask stage to the target position.

摘要翻译： 提供一种扫描曝光装置，用于通过相对于曝光辐射通量同步移动掩模和基板，将掩模上的掩模图案的图像扫描曝光到基板上。 扫描曝光装置包括用于保持掩模的可移动掩模台，用于保持基板的可移动基板台，输出指示基板台的位置的第一信号的第一检测器和输出指示基板台的位置的第二信号的第二检测器 面具舞台。 扫描曝光装置还包括控制器处理第一信号以导出掩模级的目标位置，控制器接收第二信号以导出掩模级与目标位置的偏差，控制器进一步导出误差预测信号 根据扫描曝光之前测量的掩模阶段移动的偏差，以及掩模台控制器，用于根据衍射偏离目标位置和误差预测信号来移动掩模台，以保持该位置 面具舞台到目标位置。

公开(公告)号：US3728011A

公开(公告)日：1973-04-17

申请号：US3728011D

申请日：1972-03-21

申请人： NIPPON KOGAKU KK

发明人： MORI I

IPC分类号： G02B13/04 ,  G02B9/64

CPC分类号： G02B13/04

摘要： A retrofocus type ultra-wide angle lens, having 13 air-spaced elements in four groups, which include, as viewed from the object side of the lens, a first group consisting of two divergent meniscus elements and a convergent meniscus element, a second group consisting of three divergent meniscus elements and a convergent cemented component, a third group consisting of a divergent meniscus element and a positive cemented component, and a fourth group consisting of a convergent element, a divergent element, a convergent meniscus element and a cemented component. A diaphragm is disposed immediately behind the third group.

摘要翻译： 一种具有四组气体隔离元件的回射型超广角镜头，包括从透镜的物体侧观察的由两个发散弯月面元件和会聚弯月面元件组成的第一组，第二组 由三个发散弯月面元件和收敛的胶结部件组成，第三组由发散弯月面元件和正粘结部件组成，第四组由会聚元件，发散元件，会聚弯月面元件和胶合元件组成。 紧挨着第三组的隔膜。

公开(公告)号：US3679905A

公开(公告)日：1972-07-25

申请号：US3679905D

申请日：1971-03-29

申请人： NIPPON KOGAKU KK

发明人： WATANABE ASAO

IPC分类号： G03B7/089 ,  G01J1/46 ,  G03B7/083 ,  G01J1/00 ,  G01J1/52 ,  H01J39/12

CPC分类号： G01J1/46 ,  G03B7/083

摘要： The electronic shutter device of this invention has a circuit for generating a voltage whose value is proportional to a logarithm of a magnitude of the current generated by a photosensitive element for sensing the intensity of the light from an object. It is so designed that said voltage generating circuit is used also for a circuit for controlling a shutter speed by the antilogarithmic transformation. Thus the variation in temperature and aging chracteristics, which are inherent if the separate circuits were provided, of a logarithmic transformation component can be corrected automatically. Further, an element adopted to store therein the intensity of light from the object is placed in the logarithmic transformation circuit.

摘要翻译： 本发明的电子快门装置具有用于产生电压的电路，该电压的值与用于感测来自物体的光的强度的感光元件产生的电流的大小的对数成比例。 它被设计成使得所述电压产生电路也用于通过反对数转换来控制快门速度的电路。 因此，可以自动校正对数变换分量的温度和老化特性的变化（如果提供单独的电路固有的）。 此外，在对数变换电路中放置用于在其中存储来自物体的光的强度的元件。

公开(公告)号：US3672282A

公开(公告)日：1972-06-27

申请号：US3672282D

申请日：1970-01-16

申请人： NIPPON KOGAKU KK

发明人： YAMADA TAKEO

IPC分类号： G03B9/64 ,  G03B9/42

CPC分类号： G03B9/64

摘要： The working energy discharged by a driving spring for accelerating the shutter curtains and their associated moving members is mostly recovered by said springs during the deceleration stage for using the recovered energy for the next acceleration operation. The work required for the shutter charging is extremely reduced, while the shutter curtain travelling time is rather shortened.

摘要翻译： 用于加速快门帘及其相关联的移动部件的驱动弹簧释放的工作能量在减速阶段期间通过所述弹簧大部分被回收，以便将回收的能量用于下一个加速操作。 快门充电所需的工作极大地减少，而快门帘行进时间相当缩短。

公开(公告)号：US3601023A

公开(公告)日：1971-08-24

申请号：US3601023D

申请日：1969-06-12

申请人： NIPPON KOGAKU KK

发明人： IIDA YOZO

IPC分类号： G03B7/085 ,  G03B7/12 ,  G03B9/02

CPC分类号： G03B7/085

摘要： A manual control for the diaphragm of a camera is provided to override the automatic setting of the diaphragm by an exposure meter built into the camera. By a scissoring, or pinching action of two levers pivoted on a common shaft, a rocker actuating shaft controlling the automatic setting of the aperture blades is moved into and held in a desired aperture setting position upon depression of a pushbutton and rotation of an aperture setting sleeve. An operating rod movable upon depression of the pushbutton permits biased movement of one lever and also opens the exposure meter circuit. A cam groove in the aperture setting sleeve positions the other lever to the desired aperture setting positions.

公开(公告)号：US3568585A

公开(公告)日：1971-03-09

申请号：US3568585D

申请日：1968-07-10

申请人： NIPPON KOGAKU KK

发明人： ISHIZAKA SUNAO

IPC分类号： G03B19/12

CPC分类号： G03B19/12

摘要： A shock-absorbing mechanism is provided for the viewing mirror of a single lens reflex camera. A spring-biased shock-absorbing lever having a pin or protuberance in the path of the mirror absorbs the impact forces. A spring-biased latch cooperation with the shock-absorbing lever latching the lever immediately before the mirror is moved into its raised position. The viewing mirror is thus moved to its raised position without impact.

公开(公告)号：US3560079A

公开(公告)日：1971-02-02

申请号：US3560079D

申请日：1968-12-13

申请人： NIPPON KOGAKU KK

发明人： WAKIMOTO ZENJI ,  SIMIZU YOSHIYUKI

IPC分类号： G02B13/00 ,  G02B9/60

CPC分类号： G02B13/00

摘要： LENS SYSTEM OF A MODIFIED GAUSS TYPE IN WHICH THE THICKNESS OF THE SECOND LENS GROUP IS REDUCED AND THE THICKNESS OF THE THIRD GROUP IS INCREASED, AND IN WHICH THE LAST GROUP IS SEPARATED INTO TWO LENS ELEMENTS TO LENGTHEN

THE BACK FOCUS OF THE SYSTEM AND PROVIDED A F:1.4 LENS CORRECTED FOR SPHERICAL AND CHROMATIC ABERRATIONS, ASTIGMATION AND COMA, WITH AN ANGULAR FIELD OF $23*.

公开(公告)号：US3532044A

公开(公告)日：1970-10-06

申请号：US3532044D

申请日：1968-02-06

申请人： NIPPON KOGAKU KK

发明人： SHIMOMURA JUN

IPC分类号： G03B19/12

CPC分类号： G03B19/12