公开(公告)号：US4264175A

公开(公告)日：1981-04-28

申请号：US168266

申请日：1980-07-10

申请人： Toshinori Hayata ,  Kunio Tsuji ,  Akitoshi Morioka

发明人： Toshinori Hayata ,  Kunio Tsuji ,  Akitoshi Morioka

IPC分类号： G03B19/07 ,  G03B3/02 ,  G03B17/00

CPC分类号： G03B19/07

摘要： In a camera equipped with both a standard lens and a telephoto lens which may be arbitrarily selected for exposures by manipulating a first control knob, a focusing device is provided which selects the focusing ranges or depths of field of the telephoto lens by a second control knob only in the case of the photography with the telephoto lens.

摘要翻译： 在配备有通过操纵第一控制旋钮任意选择用于曝光的标准镜头和长焦镜头的相机中，提供了通过第二控制旋钮选择远摄镜头的聚焦范围或景深的聚焦装置 仅在使用长焦镜头拍摄的情况下。

公开(公告)号：US4229092A

公开(公告)日：1980-10-21

申请号：US28174

申请日：1979-04-09

申请人： Hiroshi Iwata

发明人： Hiroshi Iwata

IPC分类号： G03B3/02 ,  G02B7/28 ,  G03B13/32 ,  G03B17/18 ,  G03B17/20 ,  G03B3/00

CPC分类号： G03B17/18

摘要： A distance indication arrangement for a photographic camera includes a plate having a plurality of numerals or symbolic marks thereon representing distances from the camera to the object being photographed. A multi-position switch is provided which is operable independently of the shutter releasing mechanism of the camera to selectively feed current to illumination elements associated with the numerals or marks. In accordance with the position of the switch, an individual numeral or mark is illuminated.

摘要翻译： 照相机的距离指示装置包括在其上具有多个数字或符号标记的板，其上表示从照相机到被拍摄物体的距离。 提供多位置开关，其可独立于相机的快门释放机构操作，以选择性地将电流馈送到与数字或标记相关联的照明元件。 根据开关的位置，单独的数字或标记被照亮。

公开(公告)号：US4160933A

公开(公告)日：1979-07-10

申请号：US831525

申请日：1977-09-08

申请人： Kazuo Tanaka

发明人： Kazuo Tanaka

IPC分类号： G03B15/05 ,  H05B41/30 ,  H05B41/32

CPC分类号： H05B41/32

摘要： In a photographic flash device comprising a flash discharge tube, for example a xenon discharge tube, a main capacitor which is connected across electrodes of said flash discharge tube and is for storing electric charge to be discharged in said flash tube, a triggering capacitor which is connected in series with a primary coil of a triggering transformer and a synchronous switch, and a voltage indicating glow discharge lamp for indicating completion of charging in the main capacitor.A safety circuit for prohibiting accidental flashing is constituted by comprising a switching means which suspends function of said triggering capacitor.

摘要翻译： 在包括闪光放电管（例如氙放电管）的照相闪光装置中，主电容器被连接在所述闪光放电管的电极上并用于存储要在所述闪光管中放电的电荷;触发电容器， 与触发变压器和同步开关的初级线圈串联连接，以及指示用于指示主电容器中的充电完成的辉光放电灯的电压。

公开(公告)号：US4083058A

公开(公告)日：1978-04-04

申请号：US675756

申请日：1976-04-12

申请人： Hiroshi Iwata ,  Yu Tsuzuki

发明人： Hiroshi Iwata ,  Yu Tsuzuki

IPC分类号： G03B15/03 ,  G03B15/05

CPC分类号： G03B15/05 ,  G03B2215/0503

摘要： Flash and camera apparatus integrally incorporating an electronic flashing device for firing a flash discharge tube and a photographic camera device with a fixed focus lens system. The apparatus includes an aperture change-over mechanism for changing the aperture to an appropriate value depending on the paticular mode of photography selected. The selectable modes include both far and near modes for objects which are within allowable range of the camera to achieve proper flash mode photography and also daylight mode photography. An indication element for indicating the existence of a condition under which the electronic flash device is able to fire in the flash mode and which indicates whether the distance to the object is far or near is also provided. Further provided is a switch mechanism for simultaneously performing the functions of operating the aperture changeover mechanism, operating the indication element and supplying power to the electronic flash device. In this manner, daylight and flash mode photography are simplified, the allowable distance to the object for proper photography can be increased, and the distance from the object, i.e. far or near, is indicated for identification.

公开(公告)号：US4082982A

公开(公告)日：1978-04-04

申请号：US769710

申请日：1977-02-17

申请人： Shinji Hirata

发明人： Shinji Hirata

IPC分类号： G03B15/05 ,  H01J17/36 ,  H05B41/32 ,  H05B41/30 ,  H05B41/36

CPC分类号： H05B41/325

摘要： An automatic electronic flash device including: a flash discharge tube, a first switching element connected in series with the flash discharge tube, a main discharge capacitor adapted to supply its charged energy to the flash discharge tube for firing thereof so that an object to be photographed is illuminated, a light receiving circuit which receives light reflected from the object for turning on a second switching element when the amount of the received light reaches a predetermined value, a commutation capacitor which is made to discharge in response to the second switching element being turned on and supplies a reverse current through the first switching element whereby the first switching element is turned off so as automatically to stop illuminating, a trigger circuit for supplying a high voltage pulse to the trigger electrode of the flash discharge tube, and a high voltage supply circuit which generates a high voltage in synchronism with the operation of the trigger circuit so that the generated voltage is superposed on the charging voltage of the main discharge capacitor for being applied across the main electrodes of the flash discharge tube.

公开(公告)号：US4016574A

公开(公告)日：1977-04-05

申请号：US569006

申请日：1975-04-17

申请人： Hiroshi Iwata ,  Katsuji Ishikawa

发明人： Hiroshi Iwata ,  Katsuji Ishikawa

IPC分类号： G03B7/097 ,  G03B7/091 ,  G03B9/62 ,  G03B7/14

CPC分类号： G03B7/097

摘要： The invention discloses a program-controlled shutter wherein, depending upon the brightness of a subject, a suitable f-number and a suitable exposure time are determined by a plurality of shutter blades which are driven stepwise by a stepping motor in response to driving pulses applied thereto open the camera lens to a suitable f-number and then to close it after a suitable exposure time. To derive the electrical signal representative of the brightness of a subject, a photocell, an A-D converter, an encoder for encoding the output from a A-D converter into the binary-coded decimal signal, and a decoder for converting the output from the encoder into, for instance, a sexadecimal signal are used. In order to derive the opening pulse signal in response to which the shutter blades are opened to stop down the camera lens to a suitable f-number, a circuit for generating the voltage signal representative of the output signal from the decoder and a circuit for generating the opening pulse signal consisting of one or a plurality of pulses the number of which is dependent upon the voltage signal are used. In order to determine a suitable exposure time, an integrator in which the time when the voltage charged across a capacitor reaches a predetermined level is dependent upon the output from the decoder and a circuit which generates, in response to the output from the integrator, a closing pulse signal for reversing the stepping motor so as to close the shutter blades after a suitable exposure time which is a function of the f-number set for a given light or exposure value EV are used.

摘要翻译： 本发明公开了一种程序控制的快门，其中根据被摄体的亮度，合适的f数和合适的曝光时间由多个快门叶片确定，多个快门叶片响应于施加的驱动脉冲由步进电机逐步驱动 将相机镜头打开到合适的f号码，然后在合适的曝光时间后关闭相机镜头。 为了导出表示被摄体的亮度的电信号，光电管，AD转换器，将AD转换器的输出编码为二进制编码的十进制信号的编码器，以及将编码器的输出转换为解码器的解码器， 例如，使用十六进制信号。 为了导出打开脉冲信号以响应快门叶片打开以将相机镜头停止到合适的f数，用于产生代表来自解码器的输出信号的电压信号的电路和用于产生 使用由数量取决于电压信号的一个或多个脉冲组成的打开脉冲信号。 为了确定合适的曝光时间，其中电容器上充电的电压达到预定电平的时间的积分器取决于来自解码器的输出和响应于积分器的输出而产生的电路 关闭脉冲信号用于反转步进电机，以便在对于给定的光或曝光值EV设定的f数的函数的合适的曝光时间之后，使快门叶片关闭。

公开(公告)号：US3997905A

公开(公告)日：1976-12-14

申请号：US567231

申请日：1975-04-11

申请人： Hiroshi Iwata ,  Katsuji Ishikawa

发明人： Hiroshi Iwata ,  Katsuji Ishikawa

IPC分类号： G03B7/097 ,  G03B7/087 ,  G03B7/091 ,  G03B9/08 ,  G03B9/62 ,  G03B7/08

CPC分类号： G03B9/08 ,  G03B7/097 ,  G03B2217/005

摘要： The invention discloses a program-controlled shutter of the type in which, in response to the brightness of a subject, an electronic control circuit controls the motions of a stepping motor so that a plurality of shutter blades coupled thereto may be opened to define a desired aperture, for a time interval, depending upon the brightness of the subject. The control circuit includes a pulse generator, a circuit for determining the number of pulses to be applied to the stepping motor in response to the brightness of the subject so that the shutter blades may be opened to define an aperture optimum for that brightness, a time constant circuit for determining the exposure time; that is, the time interval from the time when the shutter blades begin to open to the time when they are closed again as a function of the aperture defined depending upon the brightness of the subject, a circuit for changing the time constant of the time constant circuit depending upon the opening pulses applied to the stepping motor, a circuit for causing the stepping motor to close the shutter blades after they are opened to define the desired aperture, a circuit for resetting the above circuits immediately after the shutter blades are closed again, and a circuit for selectively connecting the above circuits to a power supply.

摘要翻译： 本发明公开了一种程序控制的快门，其中响应于被摄体的亮度，电子控制电路控制步进电动机的运动，使得可以打开耦合到其上的多个快门叶片以限定期望的 光圈，一段时间间隔，取决于被摄体的亮度。 控制电路包括脉冲发生器，用于响应于被摄体的亮度确定施加到步进电机的脉冲数的电路，以便可以打开快门叶片以限定该亮度最佳的孔径，时间 用于确定曝光时间的恒定电路; 也就是说，从快门叶片开始时开始到再次闭合的时间的时间间隔是根据被摄体的亮度而定义的孔径的函数，用于改变时间常数的时间常数的电路 取决于施加到步进电机的打开脉冲的电路，用于使步进电机在打开以关闭快门叶片以限定所需孔径的电路之后，在快门叶片再次闭合之后立即复位上述电路的电路， 以及用于选择性地将上述电路连接到电源的电路。

公开(公告)号：US3953864A

公开(公告)日：1976-04-27

申请号：US408530

申请日：1973-10-23

申请人： Hiroshi Iwata ,  Satoru Misaki

发明人： Hiroshi Iwata ,  Satoru Misaki

IPC分类号： G03B9/70 ,  G03B15/05 ,  G03B7/16

CPC分类号： G03B9/70 ,  G03B15/05 ,  G03B2215/0514

摘要： A combination of a camera device and an electronic flash device in which not only switching between the natural light mode and electronic flash mode but also the exposure control are automatically effected depending on the sensitivity of the film and the brightness of the object to be photographed. Said combination comprises means for connecting the electronic flash device to an electric power source only when the former satisfies an optimal condition of use for avoiding the loss of electric energy and does not open the shutter of the camera device when the electronic flash device does not meet the optimal conditions of use for preventing mis-operation thereof.

摘要翻译： 相机装置和电子闪光装置的组合，其中不仅根据胶片的灵敏度和待拍摄对象的亮度自动地实现自然光模式和电子闪光模式之间的切换以及曝光控制。 所述组合包括用于仅当前者满足用于避免电能损失的最佳使用条件时才将电子闪光装置连接到电源的装置，并且当电子闪光装置不符合时不打开相机装置的快门 用于防止误操作的最佳使用条件。

公开(公告)号：US5842047A

公开(公告)日：1998-11-24

申请号：US879423

申请日：1997-06-20

申请人： Hisashi Ogura ,  Katsumi Ogisako

发明人： Hisashi Ogura ,  Katsumi Ogisako

IPC分类号： G03B15/03 ,  G03B15/05 ,  H05B41/32

CPC分类号： H05B41/32

摘要： A strobe light which emits light by supplying a flash discharge tube with the electric charge stored in a main capacitor uses an aluminum-electrolytic capacitor having a dissipation factor (tan.delta.) of 0.03 or lower, and has voltage controlling means for setting the charge completion voltage of the aluminum-electrolytic capacitor at a predetermined value within 265.+-.35 V.

摘要翻译： 通过向存储在主电容器中的电荷提供闪光放电管来发光的闪光灯使用具有0.03或更低的耗散因数（tanδ）的铝电解电容器，并且具有用于设定充电完成的电压控制装置 铝电解电容器的电压在265 +/- 35V之间的预定值。

公开(公告)号：US4899086A

公开(公告)日：1990-02-06

申请号：US138487

申请日：1987-12-28

申请人： Shinji Hirata ,  Katsumi Horinishi

发明人： Shinji Hirata ,  Katsumi Horinishi

IPC分类号： H05B33/08

CPC分类号： H05B33/08

摘要： An electroluminescence light emission apparatus based on a switch circuit formed of a switch element and a thyristor connected in series across a DC power source, and a control circuit for setting the thyristor and switch element in alternating conducting and non-conducting states, with an electroluminescence element being coupled between one terminal of the power source and the junction of the switch element and thyristor to be thereby alternately charged and discharged to produce emission of light.

摘要翻译： 一种基于由直流电源串联连接的开关元件和晶闸管构成的开关电路的电致发光发光装置，以及用于将晶闸管和开关元件设定在交替导通和非导通状态的控制电路，具有电致发光 耦合在电源的一个端子和开关元件与晶闸管的结之间的元件被交替地充电和放电以产生发光。