Electronic strobe
    3.
    发明授权
    Electronic strobe 失效
    电子频闪

    公开(公告)号:US06291974B1

    公开(公告)日:2001-09-18

    申请号:US09750587

    申请日:2000-12-28

    申请人: Takumi Matsuo

    发明人: Takumi Matsuo

    IPC分类号: H01M1046

    CPC分类号: H05B41/325

    摘要: In the constant-voltage automatic charging strobe circuit (100), the power circuit (20) for driving the automatic exposure mechanism rectifies the AC voltage generated in the collector of the oscillation control transistor (Q1) connected to the primary side of the step-up transformer (T1) to direct current by means of the rectifying diode (D4), smoothes the current by means of the capacitor (C3), and generates a DC secondary source. This DC secondary source is stepped up to a higher voltage than the battery voltage (VB), through the transistor (Q2) that is turned on and off by the phototransistor (PH1) for determining the level of ambient light, and is supplied as the source for driving the aperture control solenoid (RE1).

    摘要翻译: 在恒压自动充电选通电路(100)中,用于驱动自动曝光机构的电源电路(20)对连接到步进电机的初级侧的振荡控制晶体管(Q1)的集电极产生的交流电压进行整流, (D1)通过整流二极管(D4)引导电流,通过电容器(C3)平滑电流,并产生直流二次电源。 通过由用于确定环境光的电平的光电晶体管(PH1)导通和截止的晶体管(Q2),该直流二次电源被升压到比电池电压(VB)更高的电压,并作为 用于驱动光圈控制电磁铁(RE1)的源。

    Reflector for an electronic flash device and electronic flash device
    4.
    发明授权
    Reflector for an electronic flash device and electronic flash device 失效
    电子闪光装置和电子闪光装置的反射器

    公开(公告)号:US07234845B2

    公开(公告)日:2007-06-26

    申请号:US10533903

    申请日:2003-11-12

    IPC分类号: F21V7/00

    摘要: A reflector used in an electronic flash device that collectively emits direct light emitted from a light source and reflected light that has been reflected by a reflective surface onto a subject, and an electronic flash device that uses such reflector. The reflector includes a pair of first reflective surfaces that are composed of portions of a cylindrical curved surface and face one another, and a second reflective surface that is contiguous with the pair of first reflective surfaces and inside which a xenon lamp is housed. Contiguous portions where the pair of first reflective surfaces and the second reflective surface are contiguous are set closer to the opening of the pair of first reflective surfaces than a center of the xenon lamp. With this construction, by it is possible to maintain a predetermined optical performance while making the electronic flash device smaller and slimmer.

    摘要翻译: 在电子闪光装置中使用的反射器,其共同地将从光源发射的直接光和被反射表面反射的反射光发射到被摄体上,以及使用该反射器的电子闪光装置。 反射器包括一对第一反射表面,其由圆柱形弯曲表面的部分和彼此面对的第一反射表面以及与一对第一反射表面邻接并且内部容纳氙灯的第二反射表面。 其中一对第一反射表面和第二反射表面相邻的相邻部分设置成比氙灯的中心更靠近该对第一反射表面的开口。 利用这种结构,可以在使电子闪光装置更小更小的同时保持预定的光学性能。

    Reflector for an electronic flashing device and electronic flashing device
    5.
    发明申请
    Reflector for an electronic flashing device and electronic flashing device 失效
    电子闪光装置和电子闪光装置的反射器

    公开(公告)号:US20060028824A1

    公开(公告)日:2006-02-09

    申请号:US10533903

    申请日:2003-11-12

    IPC分类号: F21V7/00

    摘要: A reflector used in an electronic flash device that collectively emits direct light emitted from a light source and reflected light that has been reflected by a reflective surface onto a subject, and an electronic flash device that uses such reflector. The reflector for an electronic flash device includes a pair of first reflective surfaces 24, 25 that are composed of portions of a cylindrical curved surface and face one another and a second reflective surface 26 that is contiguous with the pair of first reflective surfaces 24, 25 and inside which a xenon lamp 12 is housed. Contiguous portions B1, B2 where the pair of first reflective surfaces 24, 25 and the second reflective surface 26 are contiguous are set closer to the opening 13a of the pair of first reflective surfaces 24, 25 than a center O of the xenon lamp 12 that is the light source. With this construction, by emitting all or the majority of the reflected light to the front from the opening, it is possible to maintain a predetermined optical performance while making the electronic flash device smaller and slimmer.

    摘要翻译: 在电子闪光装置中使用的反射器,其共同地将从光源发射的直接光和被反射表面反射的反射光发射到被摄体上,以及使用该反射器的电子闪光装置。 用于电子闪光装置的反射器包括由圆柱形弯曲表面的部分和彼此面对的一对第一反射表面24和25以及与一对第一反射表面24,25相邻的第二反射表面26 并且其内容纳有氙灯12。 其中一对第一反射表面24,25和第二反射表面26相邻的相邻部分B 1,B 2被设置为比氙中心O更靠近该对第一反射表面24,25的开口13a 灯12是光源。 利用这种结构,通过从开口向前方发射全部或大部分反射光,可以在使电子闪光装置更小和更小的同时保持预定的光学性能。

    Constant-voltage automatic charging strobe circuit
    6.
    发明授权
    Constant-voltage automatic charging strobe circuit 失效
    恒压自动充电选通电路

    公开(公告)号:US5780976A

    公开(公告)日:1998-07-14

    申请号:US790315

    申请日:1997-01-28

    申请人: Takumi Matsuo

    发明人: Takumi Matsuo

    CPC分类号: H05B41/32

    摘要: This invention is designed to reduce the number of parts in the circuits of a constant-voltage automatic charging strobe circuit, thus reducing the cost. In addition, it allows a user to decide when to use the strobe flash. In a oscillation charge/discharge circuit, an oscillation startup switch is installed between a battery and a transistor through the primary coil of a step-up transformer. When the switch is closed, the direct current input to the transistor is suppressed, and an abnormal input current control resister may have a low resistance value. A trigger flash circuit comprises a circuit that both controls the constant-voltage flash of a neon lamp NE and controls the oscillation stop of the transistor. A recharge circuit comprises a circuit that uses the resistor in the primary coil of the step-up transformer and a capacitor that takes out pulse fluctuations when the xenon lamp Xe is flashed. This invention also has a switch mechanism which forms a charging route in the main capacitor under normal conditions, and which acts to start the flash of the flash element and prevent recharging when the camera shutter is operated. A main capacitor can be charged when the oscillation startup switch is operated only when the user wants to use the strobe.

    摘要翻译: 本发明旨在减少恒压自动充电选通电路的电路中的部件数量,从而降低成本。 此外,它允许用户决定何时使用闪光灯闪光灯。 在振荡充放电电路中,振荡启动开关通过升压变压器的初级线圈安装在电池和晶体管之间。 当开关闭合时,抑制了输入到晶体管的直流电流,并且异常输入电流控制寄存器可能具有低电阻值。 触发闪光电路包括控制氖灯NE的恒定电压闪光并控制晶体管的振荡停止的电路。 充电电路包括使用升压变压器的初级线圈中的电阻器的电路和当氙灯Xe闪烁时取出脉冲波动的电容器。 本发明还具有在正常条件下在主电容器中形成充电路径的开关机构,并且用于开始闪光元件的闪光并且在相机快门操作时防止充电。 当振荡启动开关仅在用户想要使用闪光灯时才能操作主电容器。