公开(公告)号：US3997832A

公开(公告)日：1976-12-14

申请号：US594272

申请日：1975-07-09

申请人： Hiroaki Tanaka ,  Osamu Maida

发明人： Hiroaki Tanaka ,  Osamu Maida

IPC分类号： G03B19/18 ,  G03B9/64 ,  H01F7/18 ,  H02J1/00 ,  H02P1/18 ,  H03K17/64 ,  H02M3/06 ,  H02M3/155

CPC分类号： H02P1/18 ,  H01F7/1816 ,  H03K17/64 ,  H01F2007/1822

摘要： A booster circuit applies a high voltage to a load for starting or energizing the load which is operated at a steady voltage once it has started. The booster circuit comprises a power source, a diode or a resistor provided in forward direction with respect to the power source, a first switch and a load. The booster circuit further comprises a capacitor which is charged by said power source through said diode when said first switch is opened and a second switch which is actuated upon closure of said first switch to connect said capacitor in parallel to said diode so that said diode is reversely biased by said capacitor.

摘要翻译： 升压电路将高电压施加到用于启动或激励负载的负载，该负载一旦开始就以稳定电压工作。 升压电路包括相对于电源向前方设置的电源，二极管或电阻器，第一开关和负载。 升压电路还包括电容器，当所述第一开关断开时，由所述电源通过所述二极管充电的电容器以及在所述第一开关闭合时致动的第二开关，以将所述电容器并联连接到所述二极管，使得所述二极管为 由所述电容器反向偏置。

公开(公告)号：US4527882A

公开(公告)日：1985-07-09

申请号：US665086

申请日：1984-10-26

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B7/085 ,  G03B17/20 ,  G03B7/08

CPC分类号： G03B17/20 ,  G03B7/085

摘要： Display apparatus for an automatic exposure control camera wherein, when the exposure control mode is automatically changed over from one mode to another, a display is presented to the photographer to indicate the fact of the change over.

摘要翻译： 一种自动曝光控制摄像机的显示装置，其中，当曝光控制模式自动地从一种模式切换到另一种模式时，向摄影者呈现显示改变的事实的显示。

公开(公告)号：US4468109A

公开(公告)日：1984-08-28

申请号：US438311

申请日：1982-11-01

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B7/087 ,  G03B7/091 ,  G03B7/08

CPC分类号： G03B7/097

摘要： An automatic exposure control camera, with a plurality of selectable control modes, has a display device that normally display an exposure value determined by the control mode and by operating conditions of the automatic exposure control. The user may cause the display device to display a different exposure value, which again depends upon the control mode and the operating conditions of the automatic exposure control. A further display device displays the selected mode and also indicates, as by the blinking of an indicator element, when certain limits of exposure time value or aperture value have been reached (with appropriate modification of the exposure control operation). In one control mode, the automatic exposure control is reprogrammed in association with the selection of shutter speeds.

摘要翻译： 具有多个可选控制模式的自动曝光控制相机具有通常显示由控制模式确定的曝光值和通过自动曝光控制的操作条件的显示装置。 用户可以使显示装置显示不同的曝光值，其再次取决于控制模式和自动曝光控制的操作条件。 另外的显示装置显示所选择的模式，并且通过指示器元件的闪烁指示已经达到某些暴露时间值或光圈值的限制（通过适当修改曝光控制操作）。 在一个控制模式中，自动曝光控制与快门速度的选择相关联地进行重新编程。

公开(公告)号：US4351600A

公开(公告)日：1982-09-28

申请号：US302072

申请日：1981-09-14

申请人： Hiroshi Hasegawa ,  Osamu Maida

发明人： Hiroshi Hasegawa ,  Osamu Maida

IPC分类号： G03B15/05 ,  G03B43/00 ,  H05B41/32 ,  G03B17/18

CPC分类号： G03B43/00 ,  G03B15/05 ,  G03B2215/05

摘要： A flash output control photography failure warning device in a camera is provided with a quantity-of-light detecting circuit adapted to start operating in synchronism with shutter release and to change from a first condition to a second condition when the integrated amount of the light from an object reaches a predetermined value, a time counting circuit for counting a predetermined time T.sub.2 greater than the longest light emission time of a flashlight discharge tube in synchronism with shutter release, a memory circuit adapted to start memorizing the condition of the quantity-of-light detecting circuit after the longest light emission time of the flashlight discharge tube and before the predetermined time T.sub.2 and to memorize it till a predetermined time T.sub.3, a discrimination circuit for discriminating that the condition of the quantity-of-light detecting circuit memorized by the memory circuit at a point of time whereat the time counting circuit has counted the predetermined time T.sub.2 is the first condition and putting out a failure signal, and warning means controlled by the failure signal of the discrimination circuit.

摘要翻译： 相机中的闪光灯输出控制摄影故障警告装置设置有光量检测电路，其适于与快门释放同步地开始操作，并且当从第一状态到第二状态的整合量从 物体达到预定值;时间计数电路，用于计数比快门释放同步的手电筒放电管的最长发光时间大的预定时间T2;适于开始记忆数量的条件的存储电路， 光检测电路，在手电筒放电管的最长发光时间之后并且在预定时间T2之前，并将其存储到预定时间T3，鉴别电路，用于鉴别由所述手电筒放电管存储的光量检测电路的状态 在时间计数电路计数了预定时间T2的时间点的存储器电路是th 第一条件并输出故障信号，以及由识别电路的故障信号控制的警告装置。

公开(公告)号：US4350422A

公开(公告)日：1982-09-21

申请号：US266115

申请日：1981-05-21

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B17/00 ,  G03B7/26 ,  G03B1/18

CPC分类号： G03B7/26

摘要： A motor driven camera has a power source, a motor connected to the power source and driven by the voltage of the power source, a constant voltage circuit for converting the voltage of the power source into a predetermined constant voltage and putting out the constant voltage, and an electric circuit connected to the constant voltage circuit and driven by the constant voltage circuit. The camera further has a battery checking device which includes a discriminating circuit for receiving the output of the constant voltage circuit and the output of the power source, comparing the two outputs and discriminating whether the voltage of the power source is above a predetermined level, and an indication circuit for receiving the output of the discriminating circuit and indicating the condition of the power source.

摘要翻译： 马达驱动的相机具有电源，连接到电源并由电源的电压驱动的电动机，用于将电源的电压转换为预定的恒定电压并输出恒定电压的恒压电路， 以及与恒压电路连接并由恒压电路驱动的电路。 相机还具有电池检查装置，其包括用于接收恒压电路的输出和电源的输出的鉴别电路，比较两个输出并判断电源的电压是否高于预定电平，以及 指示电路，用于接收鉴别电路的输出并指示电源的状态。

公开(公告)号：US4253750A

公开(公告)日：1981-03-03

申请号：US039145

申请日：1979-05-15

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B7/091 ,  G03B7/26 ,  G03B17/18 ,  G01J1/44

CPC分类号： G03B7/091 ,  G03B7/0807

摘要： An electric power supply control circuit is designed to interrupt the power supply to at least either one of a calculating circuit or an analog-digital converting circuit during the interval between two succeeding sample operations in order to reduce power consumption.

摘要翻译： 电力供应控制电路被设计为在两个后续采样操作之间的时间间隔期间中断计算电路或模拟数字转换电路中的至少一个的电源，以便降低功耗。

公开(公告)号：US3964080A

公开(公告)日：1976-06-15

申请号：US542083

申请日：1975-01-17

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B19/18 ,  G03B9/08 ,  G03B17/46 ,  G03B17/38 ,  G03B21/38

CPC分类号： G03B17/46

摘要： In an electromagnetic trigger device in a camera capable of effecting time photography, and having a trigger switch, a power source and a motor for driving a shutter driving mechanism, there is provided a restraining lever movable between a restraining position and a non-restraining position. The lever, when in the restraining position, restrains the shutter driving mechanism in fully closed shutter position. A motor switch is adapted to be closed to energize the motor when the restraining lever is in the non-restraining position. A phase switch is parallel-connected to the motor switch and operatively associated with the shutter driving mechanism to be opened in the fully open and the fully closed position of the shutter. An actuating coil is responsive to closing of the trigger switch to be connected to the power source for a predetermined time and thereby energized to attract the restraining lever to the non-restraining position. A selector member is provided for selecting continuous photography and time photography. A holding coil is responsive, during continuous photography, to closing of the trigger switch to be connected to the power source and thereby energized to hold the restraining lever in the non-restraining position. A current generating circuit is provided which includes a timing switch adapted to be opened for a predetermined time from fully opening till fully closing of the shutter. When the trigger switch is opened during continuous photography, the current generating circuit flows a current through the timing switch to maintain the holding coil energized to hold the lever in the non-restraining position.

公开(公告)号：US3961342A

公开(公告)日：1976-06-01

申请号：US513868

申请日：1974-10-10

申请人： Osamu Maida

发明人： Osamu Maida

IPC分类号： G03B17/38 ,  G03B17/42 ,  G03B19/18 ,  G03B9/64

CPC分类号： G03B17/425 ,  G03B17/38 ,  G03B19/18

摘要： Remote control apparatus for cameras having an automatic exposure control circuit and a mechanaism for operating the shutter and advancing the film in the camera comprises a first circuit responsive to a remotely generated photography signal for generating a first control signal to actuate the automatic exposure circuit and a delay circuit for generating a second control signal delayed relative to the first control signal to actuate the shutter-operating and film-advancing mechanism.

摘要翻译： 具有自动曝光控制电路的相机的遥控装置和用于操作快门并使相机中的胶片前进的机构包括：响应于远程产生的拍摄信号的第一电路，用于产生第一控制信号以致动自动曝光电路;以及 延迟电路，用于产生相对于第一控制信号延迟的第二控制信号，以启动快门操作和胶片推进机构。

公开(公告)号：US5153632A

公开(公告)日：1992-10-06

申请号：US845831

申请日：1992-03-06

申请人： Osamu Maida ,  Hidehiro Ogawa

发明人： Osamu Maida ,  Hidehiro Ogawa

IPC分类号： G03B15/05

CPC分类号： G03B15/05 ,  G03B2215/0553

摘要： A flash exposure apparatus for eliminating red-eye effect employs first and second flash devices in conjunction with a camera. The camera outputs a first release signal prior to an exposure operation and a second release signal in synchronism with the exposure operation. A detecting device detects completion of preparation (charging) of flash light emission of the flash devices. When the completion of preparation of flash light emission of both flash devices is detected, the first and second flash devices are caused to emit light in response to the first and second release signals, respectively. When the completion of preparation of flash light emission of only one flash device is detected, only that flash device is caused to emit light in response to the second release signal. In another embodiment a main flash device emits light for illuminating an object, and an auxiliary flash device emits light, prior to emission by the main flash device, to decrease the pupil diameter of a human eye. A detecting device detects the focal length of a photo-taking lens, and the emission energy of the auxiliary flash device is increased as the detected focal length becomes longer.

摘要翻译： 用于消除红眼效果的闪光曝光装置与照相机结合使用第一和第二闪光装置。 摄像机在曝光操作之前输出第一释放信号和与曝光操作同步的第二释放信号。 检测装置检测闪光装置的闪光发光的准备（充电）的完成。 当检测到两个闪光装置的闪光发光的准备完成时，第一和第二闪光装置分别响应于第一和第二释放信号而发光。 当检测到完成仅一个闪光装置的闪光发射的准备时，响应于第二释放信号仅使该闪光装置发光。 在另一个实施例中，主闪光装置发射用于照射物体的光，并且辅助闪光装置在由主闪光装置发射之前发光，以减小人眼的光瞳直径。 检测装置检测摄影镜头的焦距，并且随着检测到的焦距变长，辅助闪光装置的发射能量增加。

公开(公告)号：US4630917A

公开(公告)日：1986-12-23

申请号：US650226

申请日：1984-09-13

申请人： Osamu Maida ,  Takashi Saegusa

发明人： Osamu Maida ,  Takashi Saegusa

IPC分类号： G03B7/08 ,  G03B7/091

CPC分类号： G03B7/093

摘要： A camera in which the exposure of a film is controlled includes means for making a digital signal, converting means for converting the digital signal from the making means into an analog signal and putting out the analog signal, means for detecting the brightness of an object to be photographed and producing an analog brightness signal indicative of the detected brightness of the object to be photographed, means for comparing the analog signal from the converting means with the brightness signal, the means being adapted to put out a comparison signal when the analog signal from the converting means and the brightness signal assume a predetermined relation, the making means putting out to the converting means a digital signal indicative of exposure information concerned in the control of the exposure of the film on the basis of the digital signal made by the making means when the comparison signal is put out, the converting means converting the digital signal indicative of the exposure information into an analog signal, and means for controlling the exposure of the film on the basis of the exposure information converted into the analog signal.

摘要翻译： 控制胶片曝光的照相机包括用于制作数字信号的装置，用于将来自制作装置的数字信号转换为模拟信号并输出​​模拟信号的转换装置，用于检测对象的亮度的装置 拍摄并产生指示被拍摄物体的检测亮度的模拟亮度信号，用于将来自转换装置的模拟信号与亮度信号进行比较的装置，该装置适于当来自 转换装置和亮度信号采取预定的关系，所述制作装置根据由制作装置产生的数字信号，向转换装置输出指示关于影片曝光控制的曝光信息的数字信号 当比较信号熄灭时，转换装置转换指示曝光的数字信号 信息转换为模拟信号，以及用于根据转换成模拟信号的曝光信息控制胶片的曝光的装置。