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1. 发明授权

US4139290A Lens stop auxiliary brake control device in automatic exposure camera of the lens stop value control type 失效
标题翻译：镜头停止辅助制动控制装置在自动曝光摄像机的镜头停止值控制型
公开(公告)号：US4139290A
公开(公告)日：1979-02-13
申请号：US874084
申请日：1978-02-01
申请人： Yukio Takaoka , Yoshio Sawada
发明人： Yukio Takaoka , Yoshio Sawada
IPC分类号： G03B7/085 , G03B7/10 , G03B9/07 , G03B9/62 , G05D3/12 , G03B7/08 , G03B9/06
CPC分类号： G03B9/62 , G03B7/085 , G03B9/07
摘要： An auxiliary brake control device for use in an automatic exposure camera of the lens stop value control type permits the lens stop operation to be controlled with high accuracy without substantially increasing the lens stop operation time. The auxiliary brake control device is controlled by comparing the variation rate in the measured light which passes through the lens stop with a preset value. In this way, lenses which have different characteristic variation rates can be freely interchanged.
摘要翻译：用于透镜停止值控制类型的自动曝光照相机的辅助制动控制装置允许以高精度控制镜头停止操作，而基本上不增加透镜停止操作时间。辅助制动控制装置通过将通过透镜挡块的测量光的变化率与预设值进行比较来控制。以这种方式，具有不同特性变化率的透镜可以自由地互换。

2. 发明授权

US4149785A Diaphragm-type exposure control system having braking arrangement 失效
标题翻译：具有制动装置的隔膜式曝光控制系统
公开(公告)号：US4149785A
公开(公告)日：1979-04-17
申请号：US881132
申请日：1978-02-24
申请人： Yukio Takaoka , Yoshio Sawada
发明人： Yukio Takaoka , Yoshio Sawada
IPC分类号： G03B7/085 , G03B9/07 , G03B9/62 , G03B7/08 , G03B9/06
CPC分类号： G03B9/62 , G03B7/085 , G03B9/07
摘要： An exposure control operation involving diaphragm adjustment is performed in first and second phases. During the first phase, a drag mechanism controls the rate of change of diaphragm value. During the second phase, a braking mechanism cooperates with the drag mechanism to control the rate of change of diaphragm value.
摘要翻译：在第一和第二相中执行涉及膜片调节的曝光控制操作。在第一阶段，牵引机构控制膜片的变化率。在第二阶段期间，制动机构与牵引机构配合以控制振膜的变化率。

3. 发明授权

US4319813A Automatic focus indicating device for camera 失效
标题翻译：相机自动对焦指示装置
公开(公告)号：US4319813A
公开(公告)日：1982-03-16
申请号：US118889
申请日：1980-02-06
申请人： Harumi Aoki , Yoshio Sawada
发明人： Harumi Aoki , Yoshio Sawada
IPC分类号： G03B13/36 , G02B7/36 , G03B17/18 , G03B7/081 , G03B3/10
CPC分类号： G02B7/36
摘要： An automatic focus detecting and indicating device for an camera in which a contrast signal is coupled through first and second analog switches directly to a difference circuit and through a peak hold circuit, respectively. A third analog switch is coupled so as to discharge the value stored in the peak hold circuit. The three switches are operated by a control circuit which in turn operates in accordance with the direction of movement of the lens and the detection of a rising edge of the contrast signal so as to prevent the generation of a false focus signal at other than the point of true focus.
摘要翻译：一种用于相机的自动对焦检测和指示装置，其中对比度信号分别通过第一和第二模拟开关直接耦合到差分电路并通过峰值保持电路。第三模拟开关被耦合以便放出存储在峰值保持电路中的值。三个开关由控制电路操作，该控制电路依次根据透镜的移动方向和对比度信号的上升沿的检测来操作，以防止除了点之外产生假焦点信号真正的重点。

4. 发明授权

US4092653A Mirror movement disable circuit for LED display in light finder of SLR camera 失效
标题翻译：用于单反相机照明灯中的LED显示器的反光镜运动禁止电路
公开(公告)号：US4092653A
公开(公告)日：1978-05-30
申请号：US735222
申请日：1976-10-22
申请人： Masahiro Kawasaki , Eiichi Tano , Yoshio Sawada
发明人： Masahiro Kawasaki , Eiichi Tano , Yoshio Sawada
IPC分类号： G03B17/18 , G03B17/20 , G03B19/12 , G03B7/00
CPC分类号： G03B17/20
摘要： A circuit for disabling the LED display L1-L5 in the light meter of a single lens reflex camera in response to mirror movements. When the mirror 21 is raised the switch 17 is closed which reverse biases the LEDs. After the mirror is lowered the switch 17 is opened to enable the LEDs, but a short time delay is provided to allow transients to settle out by reason of a capacitor 18 which must first charge through a grounding resistor 19.

5. 发明授权

US06465967B2 Control circuit of light emitting element 失效
标题翻译：发光元件的控制电路
公开(公告)号：US06465967B2
公开(公告)日：2002-10-15
申请号：US09902001
申请日：2001-07-10
申请人： Toshiaki Tsujikawa , Yoshio Sawada , Tadaaki Suda , Hiroyuki Basho
发明人： Toshiaki Tsujikawa , Yoshio Sawada , Tadaaki Suda , Hiroyuki Basho
IPC分类号： G09G310
CPC分类号： H01S5/0683 , H01S5/042 , H01S5/4025
摘要： To make compatible low consumption power formation of a control circuit of a light emitting element and high frequency formation of operational frequency band constituting a variety of usable combination elements of light emitting elements and light receiving elements, bias current is provided to a current mirror for dividing monitor current of a photodiode PD1 by a current source to thereby compensate drive function of a post stage in driving thereof by low current. Reference voltage of a current-voltage conversion portion is set in accordance with an input range of an operational amplifier of a gain adjusting portion at a post stage and input to the operational amplifier is fitted to an input range optimizing amplifying function. There are provided switching circuits SW1 and SW2 for selectively supplying monitor current from two photodiodes to respective APC loops of laser diodes LD1 and LD2 to thereby deal with a 2LD-1PD element and two of 1LD-1PD elements.
摘要翻译：为了实现发光元件的控制电路的兼容低功耗电力的形成和构成发光元件和光接收元件的各种可用的组合元件的工作频带的高频形成，将偏流提供给电流镜用于分割通过电流源监视光电二极管PD1的电流，从而通过低电流补偿后级的驱动功能。根据后级的增益调整部的运算放大器的输入范围来设定电流 - 电压转换部的参考电压，并且将运算放大器的输入拟合到输入范围优化放大功能。提供了用于选择性地将来自两个光电二极管的监视电流提供给激光二极管LD1和LD2的相应APC环路的开关电路SW1和SW2，从而处理2LD-1PD元件和1LD-1PD元件中的两个。

6. 发明授权

US4293207A Camera focus detecting device 失效
标题翻译：相机对焦检测装置
公开(公告)号：US4293207A
公开(公告)日：1981-10-06
申请号：US117336
申请日：1980-01-31
申请人： Harumi Aoki , Masahiro Kawasaki , Yoshio Sawada
发明人： Harumi Aoki , Masahiro Kawasaki , Yoshio Sawada
IPC分类号： G03B13/36 , G02B7/36 , G03B3/00
CPC分类号： G02B7/36
摘要： An automatic focus detecting device for a camera in which a self-scanning photoelectric element array is scanned at a rate depending upon the average amount of light reflected from an object being photographed so that accurate focus detection is maintained over a wide range of illumination conditions. An average illumination detecting element is disposed at a position near or at a position optically equivalent to that of the microphotoelectric elements of the element array. A low-pass filter couples the output of the average illumination detecting element to a clock pulse generator which produces clock pulse signals of which the frequency varies according to the smoothed output signal from the low-pass filter representing the average illumination. As the brightness of the object increases the frequency of the clock pulse signal correspondingly increases to compensate for variations in brightness of the object.
摘要翻译：一种用于照相机的自动对焦检测装置，其中以取决于被拍摄物体的平均反射光量的速率扫描自扫描光电元件阵列，从而在宽范围的照明条件下保持精确的聚焦检测。平均照明检测元件设置在与元件阵列的微电子元件的光学等效的位置附近或位置。低通滤波器将平均照明检测元件的输出耦合到时钟脉冲发生器，时钟脉冲发生器根据来自表示平均照明的低通滤波器的平滑输出信号产生频率变化的时钟脉冲信号。随着对象的亮度增加，时钟脉冲信号的频率相应地增加以补偿对象的亮度变化。

7. 发明授权

US4180310A Photometric circuit 失效
标题翻译：光度电路
公开(公告)号：US4180310A
公开(公告)日：1979-12-25
申请号：US887914
申请日：1978-03-17
申请人： Masahiro Kawasaki , Yoshio Sawada
发明人： Masahiro Kawasaki , Yoshio Sawada
IPC分类号： G03B7/083 , G03B7/08
CPC分类号： G03B7/083
摘要： A novel photometric circuit for a camera is disclosed wherein the operational amplifiers common to conventional photometric circuits are eliminated from that part of the circuit which solves the exposure Apex indication equation: S.sub.v +B.sub.v =A.sub.v +T.sub.v. The variable resistors which are used to convert the film sensitivity and aperature settings into electrical quantities are positioned in the feedback circuit of the transistor which is connected to the electro-optical transducer and which develops a voltage dependent upon scene brightness.
摘要翻译：公开了一种用于相机的新型光度测量电路，其中常规测光电路公用的运算放大器从解决曝光Apex指示方程式的电路部分中消除：Sv + Bv = Av + Tv。用于将膜敏感度和温度设置转换为电量的可变电阻器位于连接到电光换能器并且根据场景亮度产生电压的晶体管的反馈电路中。

8. 发明授权

US4099195A Camera having automatic and manual exposure-time determination 失效
标题翻译：相机具有自动和手动曝光时间确定
公开(公告)号：US4099195A
公开(公告)日：1978-07-04
申请号：US641933
申请日：1975-12-18
申请人： Fumio Urano , Yoshio Sawada
发明人： Fumio Urano , Yoshio Sawada
IPC分类号： G03B9/58 , G03B7/08
CPC分类号： G03B9/58
摘要： A camera which is capable of automatically determining exposure time and which is also capable of providing for manual determination of exposure time either in a manual-mechanical range of exposure times or in a mechanical-electrical range of exposure times. The automatic exposure-time determining structure includes an electromagnet which is energized when the shutter is opened and which is deenergized to bring about closing of the shutter so as to terminate an exposure. In the electrical circuitry which is connected to this electromagnet there are a pair of parallel-connected switches one of which is an automatic switch for providing for energizing of the electromagnet whenever the shutter has opened to start an exposure while the other switch is a manual switch for preventing energizing of the electromagnet only in the manual-mechanical range of exposures so that electrical energy is not needlessly consumed and the operations are not interfered with by energizing of the electromagnet during operations with manual determination of exposure in the manual-mechanical exposure time range. However, during automatic determination of exposure or during manual determination in the mechanical-electrical range the mechanical switch has no influence on the electromagnet.
摘要翻译：能够自动确定曝光时间的照相机，并且还能够在曝光时间的手动机械范围或曝光时间的机械电气范围内提供手动确定曝光时间。自动曝光时间确定结构包括一电磁体，该电磁体在快门打开时被激励，并被断电以使快门关闭从而终止曝光。在连接到该电磁体的电路中，存在一对平行连接的开关，其中之一是自动开关，用于仅当快门开启以开始曝光时才为电磁体供电，而另一个开关是手动开关用于仅在手动机械曝光范围内防止电磁体通电，使得电能不会被不必要地消耗，并且通过在手动 - 机械曝光时间范围内手动确定曝光的操作期间对电磁体的激励不会干扰操作。然而，在自动确定曝光或在机电范围内手动确定期间，机械开关对电磁铁没有影响。

9. 发明授权

US4326127A Focus detecting device 失效
标题翻译：对焦检测装置
公开(公告)号：US4326127A
公开(公告)日：1982-04-20
申请号：US149803
申请日：1980-05-14
申请人： Harumi Aoki , Yoshio Sawada
发明人： Harumi Aoki , Yoshio Sawada
IPC分类号： G03B13/36 , G02B7/36 , G01J1/20
CPC分类号： G02B7/36
摘要： A focus detecting device for a camera utilizing a self-scanning type photoelectric element array composed of a plurality of minute photoelectric elements. The input signal from the photoelectric element array is held by first and second memory circuits at opposite phases from one another with the holding time for the memory circuit corresponding to twice the scanning time for a single minute photoelectric element within the array. Signals representing the difference and sum of the output of the memory circuits are formed and the absolute value of the difference signal is taken. The sum signal is connected as the divisor signal to a divider circuit while the absolute value of the difference is utilized as the dividend. The peak value of the signal thus formed is utilized as a contrast detection signal. This signal is substantially unaffected by vibration of the camera or movement of the object being photographed.
摘要翻译：一种利用由多个微小光电元件组成的自扫描型光电元件阵列的照相机的焦点检测装置。来自光电元件阵列的输入信号由第一和第二存储器电路以彼此相反的相位保持，对于存储器电路的保持时间对应于阵列内的单分钟光电元件的扫描时间的两倍。形成表示存储电路的输出的差值和和的信号，并取差分信号的绝对值。和信号作为除数信号连接到分频器电路，而差分的绝对值被用作分红。如此形成的信号的峰值被用作对比度检测信号。该信号基本上不受照相机的振动或被拍摄物体的运动的影响。

10. 发明授权

US4320946A Camera focus detecting device 失效
标题翻译：相机对焦检测装置
公开(公告)号：US4320946A
公开(公告)日：1982-03-23
申请号：US117932
申请日：1980-02-04
申请人： Harumi Aoki , Katsuhiko Miyata , Yoshio Sawada
发明人： Harumi Aoki , Katsuhiko Miyata , Yoshio Sawada
IPC分类号： G03B13/36 , G02B7/36 , G03B3/00
CPC分类号： G02B7/36
摘要： An automatic focus detecting device for a camera in which a contrast signal is produced which is made independent of variations and brightness of the object being viewed and of vibrations of the camera by utilizing an out-of-focus image on an average illumination detecting photoelectric element. The average illumination detecting photoelectric element is disposed in a plane perpendicular to the optical axis of an optical image of the camera. A pulse generator produces an output clock pulse signal having a frequency which is controlled by the output signal from the average illumination detecting photoelectric element. A self-scanning type photoelectric element array is scanned with this variable frequency clock pulse train wherein the frequency of the clock pulses is increased when the brightness of the object being viewed increases to thereby increase the dynamic range of the device.
摘要翻译：一种用于照相机的自动对焦检测装置，其中产生对比度信号，该对比度信号通过利用平均照度检测光电元件上的失焦图像而与被观察物体的变化和亮度无关，以及照相机的振动。平均照明检测光电元件设置在垂直于照相机的光学图像的光轴的平面中。脉冲发生器产生具有由平均照明检测光电元件的输出信号控制的频率的输出时钟脉冲信号。利用该可变频率时钟脉冲串扫描自扫描型光电元件阵列，其中当观看对象的亮度增加时，时钟脉冲的频率增加，从而增加设备的动态范围。

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