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公开(公告)号：US5869936A
公开(公告)日：1999-02-09
申请号：US901918
申请日：1997-07-29
CPC分类号： H05B41/32
摘要： A strobe device according to the present invention includes: a main capacitor; and step-up means including at least one step-up capacitor, the at least one step-up capacitor being rapidly charged via a flash discharge tube in an ionization state, a charged voltage of the at least one step-up capacitor being superimposed on a charged voltage of the main capacitor and applied across the flash discharge tube at least via an insulated gate bipolar transistor and a restriction resistor coupled in series with the flash discharge tube. The resistance value of the restriction resistor is prescribed to satisfy both of the following two conditions:(1) during an OFF state of the insulated gate bipolar transistor, an electric current flowing via the flash discharge tube is controlled at a level where the flash discharge tube cannot continue to discharge; and(2) during an ON state of the insulated gate bipolar transistor, a voltage across the flash discharge tube is stepped up to a voltage which is higher than the charged voltage of the main capacitor when the charged voltage of the step-up capacitor is applied across the flash discharge tube.
摘要翻译： 根据本发明的选通装置包括：主电容器; 以及包括至少一个升压电容器的升压装置，所述至少一个升压电容器经由闪电放电管以电离状态快速充电，所述至少一个升压电容器的充电电压被叠加在 主电容器的充电电压并且至少经由绝缘栅双极晶体管和与闪光放电管串联耦合的限制电阻器跨越闪光放电管施加。 限制电阻器的电阻值规定为满足以下两个条件：（1）在绝缘栅双极晶体管的截止状态期间，通过闪光放电管流动的电流被控制在闪光放电 管不能继续放电; 和（2）在绝缘栅双极晶体管的导通状态期间，当升压电容器的充电电压为...时，闪光放电管两端的电压升高到高于主电容器的充电电压的电压 施加在闪光放电管上。
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公开(公告)号：US07457536B2
公开(公告)日：2008-11-25
申请号：US10999814
申请日：2004-11-30
CPC分类号： G03B15/05 , G03B2215/0557
摘要： A flash device includes at least one light emitting unit is attachable to a plurality of connection portions. A shielding portion shields the connection portion without an attached light emitting unit. A capacitor accumulates an electric charges and is charged by a charging circuit. A control circuit includes judges both (1) whether or not all the plurality of connection portions are shielded and (2) whether or not the light emitting unit is attached to at least one of the plurality of connection portions, and permits the capacitor to be charged if both all the connection portions are shielded and the light emitting unit is attached to at least one of the plurality of connection portions.
摘要翻译： 闪光灯装置包括至少一个发光单元可连接到多个连接部分。 屏蔽部分没有连接的发光单元屏蔽连接部分。 电容器累积电荷并由充电电路充电。 控制电路包括判断（1）是否所有多个连接部分都被屏蔽，以及（2）发光单元是否附接到多个连接部分中的至少一个，并且允许电容器为 如果两个连接部分均被屏蔽并且发光单元被附接到多个连接部分中的至少一个连接部分，则充电。
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公开(公告)号：US20050135078A1
公开(公告)日：2005-06-23
申请号：US10999814
申请日：2004-11-30
CPC分类号： G03B15/05 , G03B2215/0557
摘要： A flash device includes at least one light emitting unit. At least one light emitting unit is attachable to a plurality of connection portions. A shielding portion shields the connection portion to which the light emitting unit is not attached. A capacitor accumulates an electric charges. A charging circuit charges the capacitor. A control circuit includes a first judgment section to judge whether or not all the plurality of connection portions are shielded and a second judgment section to judge whether or not the light emitting unit is attached to at least one of the plurality of connection portions, and permits an electric charges accumulation operation into the capacitor in a case where the first judgment section judges that all the connection portions are shielded and the second judgment section judges that the light emitting unit is attached to at least one of the plurality of connection portions.
摘要翻译： 闪光装置包括至少一个发光单元。 至少一个发光单元可附接到多个连接部分。 屏蔽部分屏蔽发光单元未连接到的连接部分。 电容器累积电荷。 充电电路对电容充电。 控制电路包括：第一判断部分，用于判断所有多个连接部分是否被屏蔽;以及第二判断部分，判断所述发光单元是否连接到所述多个连接部分中的至少一个，并允许 在第一判断部判定所有连接部分被屏蔽的情况下，电容器积累电容器，并且第二判断部分判断发光部件被连接到多个连接部分中的至少一个。
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