SHORT ARC FLASH LAMP

To provide a short arc flash lamp with long life without cloudiness.SOLUTION: In a short arc flash lamp, the energy to charge the capacitor is 5 J or more, the peak current in the main discharge is 3000 A or more, and the half width of the current is 100 μs or less. Also, the distance L (unit cm) be...

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Bibliographic Details
Main Authors KOBAYASHI MIKIHIRO, FUJITA KAZUNOBU
Format Patent
LanguageEnglish
Japanese
Published 09.01.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:To provide a short arc flash lamp with long life without cloudiness.SOLUTION: In a short arc flash lamp, the energy to charge the capacitor is 5 J or more, the peak current in the main discharge is 3000 A or more, and the half width of the current is 100 μs or less. Also, the distance L (unit cm) between the cathode 3 and the anode 5, the distance D (unit cm) from the line connecting the cathode 3 and the anode 5 to the inner surface of an envelope, the gas pressure P (unit Pa) of a rare gas, and the main discharge voltage V (unit V) applied to the capacitor (not shown) satisfy the following conditions, respectively, 0.3<D<2, 0.3<L<5, 20,000<P<200,000, 300<V<3,000, and 20<((P L D)/V)<200.SELECTED DRAWING: Figure 3 【課題】白濁なく長寿命のショートアーク型フラッシュランプを提供する。【解決手段】ショートアーク型フラッシュランプは、コンデンサに充電するエネルギーは５Ｊ以上、主放電におけるピーク電流は３０００Ａ以上、電流半値幅は１００μ秒以下である。また、陰極３と陽極５との距離Ｌ（単位ｃｍ）、陰極３と陽極５を結ぶ線分から封体の内面との距離Ｄ（単位ｃｍ）、希ガスのガス圧Ｐ（単位Ｐａ）、コンデンサ(図示せず)に印加する主放電用電圧Ｖ（単位V)がそれぞれ下記条件を満たし、０．３＜Ｄ＜２、０．３＜Ｌ＜５、２０，０００＜Ｐ＜２００，０００、３００＜Ｖ＜３，０００、かつ、２０＜（（Ｐ・Ｌ・Ｄ）/Ｖ）＜２００である。【選択図】図３
Bibliography:Application Number: JP20180148246