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    • 3. 发明专利
    • Metal-halide lamp, metal-halide lamp lighting device, and headlight
    • 金属卤化物灯,金卤灯照明装置和头灯
    • JP2007035519A
    • 2007-02-08
    • JP2005219716
    • 2005-07-28
    • Harison Toshiba Lighting Corpハリソン東芝ライティング株式会社
    • DEGUCHI MAKOTOTANABE KOJI
    • H05B41/24
    • H01J61/827H01J61/125H05B41/386
    • PROBLEM TO BE SOLVED: To provide a mercury-free metal halide lamp in which a temperature rise of the upper part of a light-emitting tube in starting is suppressed and a lumen maintenance factor is improved, and also to provide a metal halide lamp lighting device using this and a headlamp. SOLUTION: The metal halide lamp MHL is equipped with: a translucent airtight container 1 which has a discharge space 1c inside and in which a wall thickness of a part opposing to the center part is 1.7 mm or more; a pair of electrodes 1b which are sealed and sheathed so as to be separated and opposed in the discharge space; and a discharge medium which contains a halogenide of the light-emitting metal and rare gas, and which does not substantially contain mercury (Hg). When lighting on so as to make a lamp electric power thrown in from the starting time to a stable lighting time larger than the thrown-in lamp electric power in stable lighting, if a lamp voltage at 16 seconds after starting is set at V 16 (V), and the lowest lamp voltage after starting is set at V 0 (V), a rate of the lamp voltages V 16 /V 0 satisfies V 16 /V 0 ≥1.5. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种无汞金属卤化物灯,其中抑制起动时发光管的上部的温度升高并且改善流明维持系数,并且还提供金属 卤化物灯照明装置及前照灯。 金属卤化物灯MHL配备有:透光性密封容器1,其内部具有放电空间1c,其中与中心部分相对的部分的壁厚为1.7mm以上; 一对电极1b,其在放电空间中被密封并被包覆以分离和相对; 以及含有发光金属和稀有气体的卤化物并且基本上不含汞(Hg)的放电介质。 在点亮的情况下,在稳定点亮的情况下使灯电源从投入时间投入到比投入灯电源大的稳定的点亮时间,如果启动后16秒的灯电压设定为V 16 (V),并且启动后的最低灯电压设定为V 0(V),灯电压V SB <16 / V 0 满足V 16 / V 0 ≥1.5。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Discharge lamp lighting circuit
    • 放电灯照明电路
    • JP2005026032A
    • 2005-01-27
    • JP2003189277
    • 2003-07-01
    • Koito Mfg Co Ltd株式会社小糸製作所
    • ISHIBASHI HIROOITO MASAYASU
    • H05B41/24H05B41/282H05B41/288H05B41/38
    • H05B41/2882H05B41/386
    • PROBLEM TO BE SOLVED: To rapidly start up light flux in transient power regulation of a discharge lamp in which mercury as a light emitting substance is not contained or contained with reduced quantity. SOLUTION: A lighting circuit 1 is provided with a light emission acceleration control means 7a detecting a lamp voltage concerning a discharge lamp 6 and gradually decreasing an input power to shift to a steady state after inputting a power exceeding the rated value at an initial stage of lighting of the discharge lamp. With a power value at start of lighting of the discharge lamp 6 as a maximum value, power control of the discharge lamp is made so that a decreasing speed of the input power at a transient period toward the steady state is larger as the lamp voltage is higher. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:在不含汞或作为发光物质的汞的放电灯的瞬时功率调节中快速启动光通量。 解决方案:点亮电路1设置有发光加速控制装置7a,其检测与放电灯6相关的灯电压,并且在输入超过额定值的功率之后逐渐减小输入功率以转移到稳定状态 放电灯的初始阶段照明。 将放电灯6点亮时的功率值设定为最大值,进行放电灯的功率控制,使得在稳定状态下的瞬时期间的输入功率的降低速度随灯电压为 更高。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Discharge lamp device
    • 放电灯装置
    • JP2003338390A
    • 2003-11-28
    • JP2002372516
    • 2002-12-24
    • Denso Corp株式会社デンソー
    • YAMAMOTO NOBORUKUNIEDA YUKIO
    • H05B41/24H05B41/288H05B41/38
    • H05B41/386H05B41/2883
    • PROBLEM TO BE SOLVED: To absorb dispersion in lamp voltage caused by difference among lamps, especially mercury-free lamps, and smoothly converge the light flux by 100% by restraining overshooting and undershooting of the light flux. SOLUTION: This device comprises an initial lighting voltage memory circuit 320 storing lamp voltage or the corresponding signal voltage just after starting lighting on of the lamp, and a ΔVL detection circuit 350 subtracting the lamp voltage or the corresponding signal voltage just after starting lighting on of the lamp from the lamp voltage or the corresponding signal voltage and calculating a lamp voltage change value ΔVL, and controls the lamp applied electric power on the basis of the lamp voltage change value ΔVL. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了吸收灯之间的差异引起的灯电压的差异,特别是不含汞的灯,并且通过抑制光通量的过冲和下冲使光束平滑地会聚100%。 解决方案:该装置包括初始点亮电压存储器电路320,其存储灯电压或恰好在开始点亮灯之后的对​​应信号电压,以及ΔVL检测电路350,在刚刚开始之后减去灯电压或相应的信号电压 根据灯电压或对应的信号电压点亮灯并计算灯电压变化值ΔVL,并根据灯电压变化值ΔVL控制灯施加的电力。 版权所有(C)2004,JPO
    • 9. 发明专利
    • Discharge lamp lighting apparatus, lighting, and vehicle
    • JP5142403B2
    • 2013-02-13
    • JP2009077733
    • 2009-03-26
    • パナソニック株式会社
    • 俊朗 中村
    • H05B41/24
    • H05B41/2882H05B41/2886H05B41/386
    • Even when an inductance value of a starter circuit is small and also when a time required until a lamp current reaches zero from a polarity prior to the reversal is close to a switching period of a DC-DC converter circuit, a necessary reignition voltage can be ensured. An input voltage from a DC power supply PS is increased by a DC-DC converter circuit 11, and is converted into a low-frequency rectangular AC voltage by an inverter circuit 12 to turn ON a discharge lamp La. An output voltage V2 of the DC-DC converter circuit 11 is controlled by a PWM signal generator circuit 16 configured to operate a switching element Q0 configured to turn ON/OFF a primary winding current of a transformer T by a PWM command signal sent from an output feedback control circuit 15. A PWM ON-signal control circuit 17 configured to control the PWM signal generator circuit 16 is provided. When the polarity of the inverter circuit 12 is reversed, the switching element Q0 of the DC-DG converter circuit 11 is driven by a PWM signal in which ON width is increased, and the polarity of the inverter circuit 12 is reversed in synchronism with the first OFF time of the PWM signal, so that an energy is regenerated from an inductance component Lp of a starter circuit 13 and thus an output power of the DC-DC converter circuit 11 is increased. Accordingly, an output voltage Vo of the inverter circuit 12 is increased temporarily.