公开(公告)号：US20120230663A1

公开(公告)日：2012-09-13

申请号：US13510084

申请日：2010-11-19

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G03B15/03 ,  G03B15/02

CPC分类号： H04N5/2354 ,  G03B7/16 ,  G03B15/03 ,  G03B2215/0557 ,  H04N5/2256 ,  H04N5/23203

摘要： A photography system includes: a camera containing a first communication unit; and a photography illumination device containing a second communication unit, wherein: the camera wirelessly transmits from the first communication unit to the second communication unit a first signal that commands, from the camera side to the photography illumination device side, a preparatory flash emission that precedes a main flash emission during photography; the photography illumination device wirelessly transmits from the second communication unit to the first communication unit a second signal that includes flash emission timing information of the preparatory flash emission, and that carries information, from the photography illumination device side to the camera side, as to the effect that the first signal has been received; and the camera starts photometric processing during the preparatory flash emission based upon the flash emission timing information.

摘要翻译： 摄影系统包括：包含第一通信单元的摄像机; 以及包含第二通信单元的摄影照明装置，其中：所述照相机从所述第一通信单元向所述第二通信单元无线地发送从所述摄像机侧向所述摄影照明装置侧指示预先准备的闪光发射的第一信号 摄影时的主要闪光发射; 摄影照明装置从第二通信单元向第一通信单元无线地发送包括预备性闪光发射的闪光发射定时信息的第二信号，并且从摄影照明装置侧向相机侧传送信息，关于 影响已经接收到第一个信号; 并且基于闪光发射定时信息，相机在预备闪光发射期间开始测光处理。

公开(公告)号：US5270763A

公开(公告)日：1993-12-14

申请号：US894437

申请日：1992-06-05

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G02B7/28 ,  G02B7/34 ,  G02B7/36 ,  G03B13/36

CPC分类号： G02B7/36

摘要： An auto-focusing device for stably drive a photographing lens to track a moving object comprises charge accumulation type photo-electric conversion means for accumulating charges at a predetermined time interval to produce a focus detection signal, defocus amount calculation means for calculating a defocus amount of the photographing lens based on the focus detection signal, drive distance calculation means for calculating a direction and a distance of the lens drive for driving the photographing lens to track the moving object based on at least the defocus amount, drive means for driving the photographing lens in accordance with the calculated direction and distance of the lens drive, and control means for supplying the direction and distance of the lens drive calculated by the drive distance calculation means to the drive means after the end of the next charge accumulation by the photo-electric conversion means to drive the photographing lens so that the photographing lens tracks the moving object.

公开(公告)号：US5155007A

公开(公告)日：1992-10-13

申请号：US675636

申请日：1991-03-22

申请人： Yoji Hara ,  Akira Kobayashi ,  Takeshi Sampei ,  Miho Sai ,  Akira Ogasawara

发明人： Yoji Hara ,  Akira Kobayashi ,  Takeshi Sampei ,  Miho Sai ,  Akira Ogasawara

IPC分类号： G03C1/06 ,  G03C1/33

CPC分类号： G03C1/33 ,  G03C1/061

摘要： An improved silver halide photographic material that has at least one silver halide emulsion layer on a support and that contains a hydrazine derivative in said emulsion layer or an adjacent layer. The improvement is that said emulsion layer or at least one of the other hydrophilic colloidal layers contains at least one of the compounds represented by the following general formulas (I) and (II): ##STR1## wherein R.sub.1 and R.sub.1 ' are each a group selected from among a substituted or unsubstituted alkane residue, an alkene residue, a benzene residue, a cyclohexane residue and a nitrogenous heterocyclic residue; R.sub.2 is a substituted or unsubstituted alkyl group; R.sub.3, R.sub.3 ', R.sub.4 and R.sub.4 ' are each a hydrogen atom or a substituted or unsubstituted methyl group, provided that R.sub.3 and R.sub.4 or R.sub.3 ' are not a methyl group at the same time; Y is a divalent organic residue; M and M' are each a hydrogen atom, an alkali metal, an ammonium salt or an organic amine salt; P is a positive integer; and m is 0 to 1.

公开(公告)号：US4841324A

公开(公告)日：1989-06-20

申请号：US134202

申请日：1987-12-16

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G02B7/36

CPC分类号： G02B7/36

摘要： A camera having a continuous photographing mode in which an exposure operation and a one frame-wind-up operation of a film are repeatedly carried out, comprising RAM, CCD, A/D convertor, a motor, encoder and AF lens control device. The CCD and A/D convertor detect a defocus distance of a photographing lens and form a data representing the detected defocus distance and store said data in the RAM. The motor drives the photographing lens. The encoder detects a driven distance of the photographing lens driven by the motor to generate a detection signal and the motor drives the photographing lens such that the drive distance represented by the detection signal coincides with the defocus distance represented by the data of the RAM. The AF lens control device discontinues the drive of the photographing lens by the motor prior to the start of the exposure operation in the continuous photographing mode and resumes the drive in the period of a subsequent one-frame wind-up operation. The device controls the motor such that the motor drives the photographing lens in response to the resumption by a distance corresponding to a difference between the drive distance represented by the detection signal at the time of discontinuance and the defocus distance represented by the data of the RAM.

摘要翻译： 包括RAM，CCD，A / D转换器，电动机，编码器和AF透镜控制装置的具有连续拍摄模式的照相机，其中重复地执行胶片的曝光操作和一个帧卷绕操作。 CCD和A / D转换器检测拍摄镜头的散焦距离，并形成表示检测到的散焦距离的数据，并将所述数据存储在RAM中。 电机驱动拍摄镜头。 编码器检测由电动机驱动的拍摄镜头的驱动距离以产生检测信号，并且马达驱动拍摄镜头，使得由检测信号表示的驱动距离与由RAM的数据表示的散焦距离一致。 AF透镜控制装置在连续拍摄模式下在曝光操作开始之前由电动机中断拍摄镜头的驱动，并且在随后的一帧卷绕操作的时段内恢复驱动。 该装置控制电动机，使得电动机响应于与中断时由检测信号表示的驱动距离和由RAM的数据表示的散焦距离之间的差值相对应的恢复来驱动拍摄镜头 。

公开(公告)号：US4613224A

公开(公告)日：1986-09-23

申请号：US692631

申请日：1985-01-18

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G02B7/08 ,  G02B7/36 ,  G03B3/00

CPC分类号： G02B7/36

摘要： A motor driver circuit for auto-focus camera comprising a voltage supply circuit, a duty ratio changing circuit for changing the duty ratio of pulse signal according to the voltage level of said voltage supply circuit and a control circuit for controlling the supply of driving current to the motor by virtue of the output signal from said duty ratio changing circuit.

摘要翻译： 一种用于自动对焦照相机的电机驱动器电路，包括电压供应电路，用于根据所述电压供应电路的电压电平改变脉冲信号的占空比的占空比改变电路和用于控制驱动电流供应的控制电路 电动机借助于来自所述占空比变化电路的输出信号。

公开(公告)号：US4496229A

公开(公告)日：1985-01-29

申请号：US517283

申请日：1983-07-26

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G03B13/36 ,  G02B7/28 ,  G03B3/10 ,  G03B13/02

CPC分类号： G03B3/10

摘要： An auto-focusing camera having an imaging optical system with a focusing lens movable along the optical axis and means for driving the focusing lens said camera comprises:(a) a taking lens unit with the imaging optical system including terminal means having a first electrical contact, first transmission means which, in response to the movement of the focusing lens, feeds the first electrical contact with a voltage having a substantially constant and periodically repeating peak value, and second transmission means which is energized to feed said first electrical contact with a voltage associated with the focal length of the imaging optical system; and(b) a camera body including means for generating an information signal indicating the deviation from a predetermined focal plane of the image of the object that is formed by the imaging optical system, terminal means inclusive of a second electrical contact coupled said first electrical contact and which is coupled to the terminal means in said taking lens unit, response means connected to the second electrical contact which, in response to the first transmission means, feeds an output signal for energizing the second transmission means between peaks of the periodic voltage, and control means preparing a signal for controlling the drive means from the voltage generated at the second electrical contact and the information signal.

摘要翻译： 一种具有成像光学系统的自动聚焦照相机，其具有可沿光轴移动的聚焦透镜和用于驱动聚焦透镜的装置，所述照相机包括：（a）带有成像光学系统的摄影镜头单元，包括具有第一电触点 第一传输装置，其响应于聚焦透镜的移动，将第一电触点馈送到具有基本上恒定且周期性重复的峰值的电压;以及第二传输装置，其被通电以将电压馈送到所述第一电触头 与成像光学系统的焦距相关联; 以及（b）相机主体，包括用于产生指示与由所述成像光学系统形成的所述物体的图像的预定焦平面偏离的信息信号的装置，所述终端装置包括将所述第一电触点 并且其耦合到所述拍摄镜头单元中的终端装置，响应装置连接到第二电触点，响应于第一传输装置，馈送输出信号以在周期性电压的峰值之间激励第二传输装置，以及 控制装置根据在第二电接触产生的电压和信息信号准备用于控制驱动装置的信号。

公开(公告)号：US4447719A

公开(公告)日：1984-05-08

申请号：US342776

申请日：1982-01-26

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G02B7/28 ,  G02B7/34 ,  G03B13/36 ,  G03B3/10

CPC分类号： G02B7/34

摘要： An automatic focus adjusting apparatus is provided with a light sensor producing a photoelectric output corresponding to the optical image of an imaged object, an operation device generating control information indicative of the in-focus position of a phototaking lens with respect to the object in response to the photoelectric output, a servo circuit for driving the phototaking lens in response to the control information, and filter means for transmitting the control information of the operation device to the servo circuit and controlling the responsiveness of the servo circuit to the control information.

摘要翻译： 一种自动对焦调节装置，具有产生与成像对象的光学图像相对应的光电输出的光传感器，操作装置响应于该对象而产生指示摄像透镜的对焦位置的控制信息 光电输出端，用于响应于控制信息驱动摄影透镜的伺服电路;以及滤波装置，用于将伺服电路的操作装置的控制信息发送到伺服电路，并控制伺服电路对控制信息的响应。

公开(公告)号：US4422739A

公开(公告)日：1983-12-27

申请号：US296143

申请日：1981-08-25

申请人： Sakuji Watanabe ,  Akira Ogasawara ,  Nobuhiko Terui ,  Kunihisa Hoshino ,  Ken Utagawa

发明人： Sakuji Watanabe ,  Akira Ogasawara ,  Nobuhiko Terui ,  Kunihisa Hoshino ,  Ken Utagawa

IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/36 ,  G03B13/20 ,  G03B7/08

CPC分类号： G02B7/36

摘要： In a camera including a photoelectric converter device disposed in the substantial imaging plane of a phototaking lens, a device for detecting the in-focus or the out-of-focus of the phototaking lens with respect to an object to be photographed from an output of said photoelectric converter device, and a device responsive to the detecting device to drive and control the phototaking lens in a direction to be in focus with respect to the object, there is provided means responsive only to the detection of said in-focus by the detecting device to restrain the operation of the drive control device. The means includes timer means for enabling the continuance of said restraint during a predetermined time after the detection of the out-of-focus by the detecting device.

摘要翻译： 在包括设置在感光透镜的基本成像平面中的光电转换器装置的照相机中，用于从摄像机的输出端检测摄影透镜相对于被拍摄对象的对焦或失焦的装置 所述光电转换器装置和响应于检测装置的装置在相对于物体聚焦的方向上驱动和控制摄影透镜，提供了仅通过检测来检测所述对焦的装置 用于限制驱动控制装置的操作的装置。 该装置包括定时器装置，用于在通过检测装置检测到失焦之后的预定时间期间使得能够继续所述约束。

公开(公告)号：US4362956A

公开(公告)日：1982-12-07

申请号：US203903

申请日：1980-11-04

申请人： Akira Ogasawara ,  Ryuzo Motoori

发明人： Akira Ogasawara ,  Ryuzo Motoori

IPC分类号： G06G7/25 ,  G06G7/14 ,  H03K5/24

CPC分类号： G06G7/14

摘要： An absolute value circuit capable of providing, through an output terminal, a signal corresponding to the absolute value of the difference between a first input signal and a second input signal, comprises a first circuit, a second circuit and a uni-directional circuit.The first circuit is adapted for subtracting a current corresponding to said second input signal from a current corresponding to said first input signal and for supplying to said output terminal a current of one direction corresponding to the result of said subtraction in case said result is positive, or a current of the other direction corresponding to the result of said subtraction in case said result is negative.The second circuit is adapted for subtracting a current corresponding to said first input signal from a current corresponding to said second input signal and for supplying to said output terminal a current of one direction corresponding to the result of said subtraction in case said result is positive, or a current of the other direction corresponding to the result of said subtraction in case said result is negative.The uni-directional circuit is adapted for transmitting either one of said current of said one direction and said current of said the other direction supplied from said first and second circuit.

摘要翻译： 能够通过输出端子提供对应于第一输入信号和第二输入信号之间的差的绝对值的信号的绝对值电路包括第一电路，第二电路和单向电路。 第一电路适于从对应于所述第一输入信号的电流中减去与所述第二输入信号相对应的电流，并且在所述结果为正的情况下向所述输出端提供与所述减法的结果相对应的一个方向的电流， 或在所述结果为负的情况下与所述减法的结果相对应的另一方向的电流。 第二电路适于从对应于所述第二输入信号的电流中减去与所述第一输入信号相对应的电流，并且在所述结果为正的情况下向所述输出端提供与所述减法的结果相对应的一个方向的电流， 或在所述结果为负的情况下与所述减法的结果相对应的另一方向的电流。 单向电路适于发射所述一个方向的所述电流中的任一个和从所述第一和第二电路提供的所述另一个方向的所述电流。

公开(公告)号：US20070201856A1

公开(公告)日：2007-08-30

申请号：US11709226

申请日：2007-02-22

申请人： Akira Ogasawara

发明人： Akira Ogasawara

IPC分类号： G03B9/70

CPC分类号： G03B15/05 ,  G03B2215/05

摘要： An optical sensor receives light of a light emitting tube. A photoelectric current output from the optical sensor is integrated by a capacitor. A stop signal output part compares the generated voltage of the capacitor with a comparison voltage and outputs a light emission stop signal when the generated voltage exceeds the comparison voltage. A voltage setting part predicts, from target amount of light, an amount of overrun light from when the light emission stop signal is output until when light emission of the light emitting tube terminates and sets the comparison voltage so that a total amount of light emission including the amount of overrun light is a target amount of light emission.

摘要翻译： 光学传感器接收发光管的光。 由光电传感器输出的光电流由电容器集成。 停止信号输出部分将电容器的产生电压与比较电压进行比较，并且当所产生的电压超过比较电压时，输出发光停止信号。 电压设定部根据目标光量，从发光停止信号输出到发光管的发光终止之前预测出超过光量，并将比较电压设定为使发光总量包括 超载光量是目标发光量。