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    • 6. 发明专利
    • High pressure sodium lamp
    • 高压钠灯
    • JPS6139359A
    • 1986-02-25
    • JP9217885
    • 1985-05-01
    • Iwasaki Electric Co Ltd
    • IWAI IKUOMASUI MOTONORIOCHI MASAFUMI
    • H01J61/16H01J61/22H01J61/88
    • H01J61/22
    • PURPOSE:To increase the luminous efficiency of a high pressure sodium lamp and inhibit suppression of ignition by charging the emitter tube with sodium vapor, mercury vapor and xenon at a xenon partial pressure of at least 130V so that the ignition suppression voltage becomes at most 180V for a lamp voltage of at least 130V. CONSTITUTION:An emitter tube 3 made of a translucent ceramic member and installed in the outer bulb 1 of a high pressure sodium lamp is charged with sodium vapor, mercury vapor and xenon with a xenon partial pressure of at least 300Torr so that the ignition suppression voltage becomes at most 18V for a lamp voltage of at least 130V. And, the load applied to the wall of the emitter tube 3 during lighting is adjusted to be within the range of 15-30W/cm . Therefore, the maximum luminous efficiency of the lamp can be increased by reducing the loss of heat caused by conduction by increasing the partial pressure of xenon gas. Furthermore, it is possible to prevent suppression of ignition by reducing the restrike voltage.
    • 目的:为了提高高压钠灯的发光效率,通过在氙分压至少为130V的钠蒸汽,汞蒸汽和氙气中对发射管进行充电,抑制点火,从而使点火抑制电压达到180V以下 灯电压至少为130V。 构成:将由半透明陶瓷构件制成并安装在高压钠灯​​的外灯泡1中的发射管3以至少300Torr的氙分压装入钠蒸气,汞蒸气和氙,使得点火抑制电压 对于至少130V的灯电压变为至多18V。 并且,在照明期间施加到发射管3的壁的负载被调节在15-30W / cm 2的范围内。 因此,通过增加氙气的分压来减少由导电引起的热量的损失,可以提高灯的最大发光效率。 此外,可以通过降低再起弧电压来防止点火的抑制。