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公开(公告)号：US5130738A
公开(公告)日：1992-07-14
申请号：US704098
申请日：1991-05-22
申请人： Shinji Hirata
发明人： Shinji Hirata
CPC分类号： H05B41/32
摘要： An I.G.B.T. (Insulated Gate Bipolar Transistor) driven electronic flash unit includes a control switch for controlling an off-operation of the I.G.B.T. The control switch has a first terminal for receiving a light-emission stopping command of a very short pulse width, a second terminal supplied with a collector electrode voltage of the I.G.B.T. connected in series with a flash tube, third and fourth terminals respectively connected with gate and emitter electrodes of the I.G.B.T., which short-circuits the third and fourth terminals upon receiving the light-emission stopping command at the first terminal, and maintains the short-circuit operation as long as it receives the collector electrode voltage of the I.G.B.T. at the second terminal.
摘要翻译： 一个G.B.T. （绝缘栅双极晶体管）驱动的电子闪光单元包括用于控制I.G.B.T.的断开操作的控制开关。 控制开关具有用于接收非常短的脉冲宽度的发光停止命令的第一端子，提供有I.G.B.T的集电极电极的第二端子。 与闪光管串联连接，分别与IGBT的栅极和发射极连接的第三和第四端子，其在第一端子处接收到发光停止命令时使第三和第四端子短路， 只要它接收到IGBT的集电极电压即可 在第二个终端。
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公开(公告)号：US4469990A
公开(公告)日：1984-09-04
申请号：US449633
申请日：1982-12-14
申请人： Yuji Maruyama , Katsumi Horinishi
发明人： Yuji Maruyama , Katsumi Horinishi
CPC分类号： H05B41/32
摘要： In an electronic flash device of the type having a power supply unit comprising a low DC power supply and a DC-DC converter and an IC memory which can maintain its stored information even if when a power supply switch is turned off, there are provided a backup capacitor which can maintain the normal and stabilized operation of the IC memory which is connected to the power supply even when the voltage of the power supply drops to such a level that the normal and stabilized operation of the IC memory cannot be maintained; a voltage detecting means for detecting the voltage across the power supply; and a control circuit which responds to the output signal from the voltage detecting means so as to control the operation of the DC-DC converter.
摘要翻译： 在具有包括低直流电源和DC-DC转换器的电源单元的电子闪光装置和即使当电源开关断开时也可以保持其存储的信息的IC存储器中， 即使当电源的电压下降到不能保持IC存储器的正常和稳定的操作的水平时，其可以保持连接到电源的IC存储器的正常和稳定的操作的备用电容器; 用于检测电源两端的电压的电压检测装置; 以及控制电路，其响应来自电压检测装置的输出信号，以便控制DC-DC转换器的操作。
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公开(公告)号：US4336985A
公开(公告)日：1982-06-29
申请号：US249884
申请日：1981-04-01
申请人： Hiroshi Iwata , Tetsuo Yamaoka , Akitoshi Morioka
发明人： Hiroshi Iwata , Tetsuo Yamaoka , Akitoshi Morioka
IPC分类号： G03B42/02 , G03B15/02 , G03B17/12 , G03B17/56 , G03B19/00 , G03B19/07 , G03B3/00 , G03B15/05
CPC分类号： G03B19/07
摘要： A camera which has a macro-photographic optical system for taking the magnified picture of a minute object or specimen, a first viewfinder system for permitting to view the magnified image of the object or specimen in the case of macro-photography, an illumination source for illuminating the object or specimen in the case of macro-photography, a normal or standard photographic optical system for taking the standard picture of a subject or object, a second viewfinder system such as an inverted Galilean finder used in the case of standard photography and an electronic flash. The selection of the macro-photographic mode or the standard photographic mode can be accomplished only by shifting a single optical element; that is, a reflecting mirror mounted in a mirror box.The camera has such a superior feature that the camera is very simple in construction yet capable of highly effective results in practice while in the case of macro-photography, a specimen can be clearly viewed and sharply focused.
摘要翻译： 具有用于拍摄微小物体或样本的放大图像的宏摄影光学系统的相机，用于在宏观摄影的情况下允许观看物体或样本的放大图像的第一取景器系统，用于 在微距拍摄的情况下照射物体或样本，用于拍摄被摄体或物体的标准图像的正常或标准摄影光学系统，在标准摄影的情况下使用的第二取景器系统，例如反向伽利略检波器，以及 电子闪光灯 宏摄影模式或标准拍摄模式的选择只能通过移动单个光学元件来实现; 即安装在镜盒中的反光镜。 相机具有这样一个优越的特征，即相机在结构上非常简单，但在实践中能够高效地实现，而在宏观摄影的情况下，可以清楚地观察样本并将其锐化。
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公开(公告)号：US4276579A
公开(公告)日：1981-06-30
申请号：US24909
申请日：1979-03-29
申请人： Hikoya Yako
发明人： Hikoya Yako
CPC分类号： G03B15/03
摘要： In a photographic exposure device of the type comprising a flash section comprising a flash tube which flashes by the energy charged on a main discharge capacitor and a reflector, and a flash light emission angle variable mechanism capable of varying the flash light emission angle by changing the position from said flash section, an exposure data section on which are displayed an aperture, a film sensitivity or speed, a distance to a subject and other useful data for photography is connected to said flash light emission angle variable mechanism by a connecting mechanism in such a way that when the flash light emission angle is made variable by said flash light emission angle variable mechanism the exposure data displays may be changed.
摘要翻译： 在包括闪光部分的闪光部分的照相曝光装置中，所述闪光部分包括通过在主放电电容器和反射器上充电的能量而闪烁的闪光管，以及能够通过改变闪光发光角度来改变闪光发光角度的闪光发光角可变机构 从所述闪光部分的位置，其上显示孔径，胶片感光度或速度，到被摄体的距离和用于摄影的其他有用数据的曝光数据部分通过这样的连接机构连接到所述闪光发光角度可变机构 当通过所述闪光发光角可变机构使闪光发光角度变化时，可以改变曝光数据显示。
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公开(公告)号：US4217523A
公开(公告)日：1980-08-12
申请号：US850031
申请日：1977-11-09
申请人： Shinji Hirata
发明人： Shinji Hirata
CPC分类号： H05B41/325
摘要： In a photographic flash device comprising a main capacitor (1) for storing a large electric energy, a gas-discharge flash tube (4) to be lit by the electric energy of the main capacitor (1), a switching circuit (5+9) which switches off the discharging of the flash lamp (1), a control circuit (20) which controls the switching circuit (5+9) in a manner to switch the switching circuit (5+9) off at a sending of a stopping signal from a triggering circuit (20) to the switching circuit (5+9), and a timer circuit which controls, responding to a selected guide number (G.N.) of flash photographing, the time period from the start of flashing of the flash tube (4) to a sending of a stopping signal to the control circuit (20) (namely the time period of flashing), the improvement is that the time period is adjusted responding to the voltage across the main capacitor (1).
摘要翻译： 在包括用于存储大电能的主电容器（1）的照相闪光装置中，由主电容器（1）的电能照亮的气体放电闪光管（4），开关电路（5 + 9） ）切断闪光灯（1）的放电的控制电路（20），控制电路（20）在发送停止时以切换电路（5 + 9）切换的方式控制开关电路（5 + 9） 信号从触发电路（20）到开关电路（5 + 9），以及定时器电路，其响应于所选择的闪光拍摄指南（GN），控制闪光灯管闪光开始的时间段 （4）为了向控制电路（20）发送停止信号（即，闪烁的时间段），改进是根据主电容器（1）两端的电压来调整时间周期。
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公开(公告)号：US4079390A
公开(公告)日：1978-03-14
申请号：US621843
申请日：1975-10-14
申请人： Hiroshi Iwata , Katsuji Ishikawa
发明人： Hiroshi Iwata , Katsuji Ishikawa
摘要： The aperture setting blades, which are drivingly coupled to a step-motor, have main openings which define the main aperture through which a subject is focused upon the photosensitive recording medium, and incident light control means adapted to control the quantity of light from the subject incident upon a photosensitive transducer. In response to the output from the photosensitive transducer, the transmission of clock pulses from a pulse generator to a step-motor control circuit is controlled so that the main aperture may be opened to the optimum opening area depending upon the brightness of the subject. Light control means consists of an auxiliary aperture defined by auxiliary openings cut through the shutter blades and adapted to change its opening area in proportion to that of the main aperture or an electro-optical element such as a liquid crystal or Kerr cell whose light transmissibility changes when subjected to the electric field which is changed in response to the opening area of the main aperture.
摘要翻译： 驱动地连接到步进电动机的孔径设定刀片具有限定主体在主感光记录介质上聚焦的主孔的主开口，以及适于控制来自对象的光量的入射光控制装置 入射到光敏传感器上。 响应于光敏换能器的输出，控制从脉冲发生器到步进马达控制电路的时钟脉冲的传输，使得主孔可以根据被摄体的亮度而被打开到最佳的开口面积。 光控制装置包括由通过快门叶片切割的辅助开口限定的辅助孔，并且适于与主孔的比例改变其开口面积或电光元件，例如其光透射率变化的液晶或克尔单元 当受到响应于主孔的开口面积而改变的电场时。
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公开(公告)号：US4068150A
公开(公告)日：1978-01-10
申请号：US665243
申请日：1976-03-09
申请人： Hiroshi Iwata , Tetsuo Yamaoka
发明人： Hiroshi Iwata , Tetsuo Yamaoka
IPC分类号： H05B41/32
CPC分类号： H05B41/32
摘要： Voltage indication means for an electronic flashing device in which a low D.C. voltage is converted to a high D.C. voltage by a DC-DC converter circuit and energy stored in a main discharging capacitor is supplied to a flashing discharge tube to fire it, wherein the charged voltage of the main discharge capacitor is indicated by utilizing the fact that the charged voltage of the main capacitor is in equivalent relation with a voltage generated in the DC-DC converter.
摘要翻译： 电子闪光装置的电压指示装置，其中通过DC-DC转换器电路将低直流电压转换成高直流电压，并将存储在主放电电容器中的能量提供给闪光放电管以将其点燃，其中充电 通过利用主电容器的充电电压与DC-DC转换器中产生的电压等效关系的事实来表示主放电电容器的电压。
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公开(公告)号：US3240565A
公开(公告)日：1966-03-15
申请号：US14998661
申请日：1961-11-03
发明人： KREJCI JOSEPH C , JOHNSON PAUL H
IPC分类号： C09C1/50
CPC分类号： C10G9/00 , C01P2006/80 , C09C1/50
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公开(公告)号：US5734934A
公开(公告)日：1998-03-31
申请号：US714418
申请日：1996-09-16
CPC分类号： G03B15/05 , G03B2215/0528
摘要： An emission angle variable flash apparatus of the invention alters an angular aperture to be formed by side reflection plates disposed oppositely to both side surfaces of a reflector in linkage with a change of a distance between a Xe tube and a reflector on their optical axis, thereby enhancing the efficiency of utilization of flash from a light source and expanding a variable range of an emission angle in the horizontal direction. As a result, the emission angle variable flash apparatus of the invention is made smaller in size than in the prior art.
摘要翻译： 本发明的发射角可变闪光装置改变由与反射器的两个侧表面相对设置的侧反射板形成的角孔，其与Xe管和反射器在它们的光轴上的距离的变化相关联，由此 提高闪光灯从光源的使用效率，并扩大水平方向上的发射角度的可变范围。 结果，本发明的发射角可变闪光装置的尺寸比现有技术的尺寸更小。
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公开(公告)号：US5053802A
公开(公告)日：1991-10-01
申请号：US503180
申请日：1990-03-28
申请人： Shinji Hirata
发明人： Shinji Hirata
CPC分类号： H05B41/32
摘要： An electric flash apparatus of the present invention is actuated to emit light by application of a trigger signal issues by a trigger circuit (5) after a power transistor (4), such as, an I.G.B.T. (insulated gate bipolar transistor) connected in series with a flash tube (3), is certainly turned to sufficient ON state.
摘要翻译： 通过在功率晶体管（4）（例如I.G.B.T）之后施加触发电路（5）的触发信号来激活本发明的电闪光装置以发光。 （3）的串联连接的绝缘栅双极型晶体管，绝对转为足够的导通状态。
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