WO1982004373A1

WO1982004373A1 - Low pressure mercury vapor discharge lamp unit

Info

Publication number: WO1982004373A1
Application number: PCT/JP1982/000206
Authority: WO
Inventors: Denki Kk Mitsubishi
Original assignee: Kajiwara Toshiro; Anzai Yoshinori; Saikatsu Takeo; Kobayashi Goroku; Morimoto Shunichi; Yamazaki Hiroyoshi
Priority date: 1981-05-28
Filing date: 1982-05-28
Publication date: 1982-12-09
Also published as: EP0079969A4; EP0079969A1; DE3279197D1; EP0079969B1

Abstract

Low pressure mercury vapor discharge lamp unit which is constructed to employ a high frequency inverter, have a quiescent time T0? in the range of 0.5 x 10?-6 to 10 x 10?-6, generate a rectangular high frequency AC voltage having a frequency of more than 1kHz, and supply a high frequency voltage to a low pressure vapor discharge lamp sealed with mercury and a rare gas selected so that the ratio X/Y of the molar number Y of the mercury vapor to the molar number X of the rare gas is in the range of 0.5 x 10?2 to 1.0 x 10?4. The moving moire of the lamp is suppressed so as to be reduced or eliminated, thereby largely improving the resonant radiation energy efficiency of the mercury.

Description

. Specification

Title of invention

Low pressure mercury vapor discharge lamp device

Technical field

The present invention relates to a low-pressure mercury vapor discharge lamp device that combines a low-pressure mercury vapor discharge lamp such as a fluorescent lamp and a lighting device for lighting the discharge lamp at a high frequency. Background art

It has long been known that the efficiency of lamps can be improved by illuminating fluorescent lamps at high frequencies, and there have been requests from recent energy situations and power transformers. In conjunction with the improved performance of the

The high-frequency lighting devices with lighting frequency of about 15 KHZ to 50 KHz have become widespread. ⁴ Taking an example 0W run-flop, the these devices run-Bed sole efficiency compared to high frequency device, 1 2 to 1 3% approximately so may, as an efficiency of the entire device Was about 20 to 25%.

On the other hand, according to recent literature, for example, J. Polman, et al: J. Phys D; Appl. Phys. 5 P274-P276

fa part of paper) (to have you in 1972), de-menu can that Nono 'to Le be discharged by hand I _{5 0%, Hg-N e} (N e: l OT or Hg 2 in the discharge lamp _r) The standardized average radiant output of 533 is the minimum value of the standardized average electron temperature, Te〉, the maximum value, and the current value a ⁴ A (32 KHz) near 32 KHz. i _DC ), a further increase of 10 was reported, and BMMM / l EHH Heta £: In Svetotek.4 P6-P8 81), Hg- A case of bus ls e modulated low E discharge of r mixed gas, E Kaka 133~470P of Ar _a, path Honoré scan duration is ²⁵ ~ 150 S, Myakuryupa It has been reported that the luminous efficiency is increased by 20 to 30% under the condition of daylight color light with a frequency of 5 to 20 K and 20 W compared to the case of DC lighting.

Disclosure of the invention

The present invention is based on the basic idea of investigating the mechanism of the improvement of the lamp efficiency during high-frequency lighting by the inventors. During the experiment, a pause is provided in the electric power E applied to the lamp. The mercury resonance radiant energy efficiency was greatly improved. This was based on a phenomenon that was not previously known. Therefore, a low-pressure mercury vapor discharge lamp was operated at high local waves of 1 KHz or more. The voltage applied between the electrodes when lit is more than 0L 5 X 1 ^ seconds, 15 X 10 0 ~ ¾? The object of the present invention is to provide a low-efficiency mercury vapor discharge lamp device with improved discharge lamp efficiency by providing the following rest periods.

The present invention, in the applied electric EE between the electrodes when alternating current operation at high frequencies above 1 KHz low-pressure mercury vapor discharge lamp, α 5 X 1 (Γ on ⁶ seconds or more, 1 5 X 1 0 seconds rest period to provide the and also, can and lit the discharge lamp in the above high stations wave 1 KHz, molar ratio Χ / Ύ α 5 X 1 0 2 or more., ing below L 0 X 1 (Γ By configuring the discharge lamp and the lighting device as described above, the efficiency of the discharge lamp can be improved, and the efficiency of the entire device can be improved. It is intended to provide a gas discharge lamp device.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a cross-sectional view of the discharge lamp used in the experiment that led to the invention of the present application. Fig. 2 is a diagram showing an experimental apparatus equipped with the discharge lamp shown in Fig. 1. Fig. 3 is the principle of the present invention. FIG. 4 is a characteristic diagram showing the relationship between the idle period and the relative luminous flux value in one embodiment of the present invention, and FIG. 5 is a lighting frequency and relative luminous flux value in one embodiment of the present invention. FIG. 6 is a characteristic diagram showing the relationship between and FIG.

図 A diagram showing an example of the circuit structure, FIG. 7 is a diagram for explaining the rest period of the applied voltage in the present invention, and FIG. 8 is a relationship between the rest period and the relative luminous flux value in another embodiment of the present invention. FIG. 9 is a characteristic diagram showing the relationship between the lighting frequency and the relative luminous flux value in another embodiment of the present invention.

Prior to the description of the embodiment of the present invention, first, a basic experiment which led to the discovery of the above-described phenomenon will be described with reference to FIGS. The same reference numerals in Figs. 1 to 3 indicate the same or corresponding parts.

Fig. 1 is a cross-sectional view showing the discharge lamp used in this basic experiment. In this figure, (1) is a quartz glass valve in which rare gas and mercury are contained. Liquid-phase mercury (b), which is a vapor generator, is enclosed. Sealed at both ends of valve (1) via ( ²⁾ is a stem) (A) shows the discharge path formed between electrodes (22)

, Is the inner diameter of the pipe of the valve ω, 30 °, and L is the pipe length 1187 ^ defined by the outer end length of the valve ω. (4) is a low-power mercury vapor discharge lamp, 40 W radiated start type fluorescent lamp and the same specifications as those made of quartz glass coated with a fluorescent substance. A discharge lamp of valve (υ) was used.

Figure 2 shows the experimental setup. In the figure,) is a 100 V commercial AC power supply,) is a filament transformer energized by the power supply (5), and (7) ) the rectangular wave power source for supplying Ε electricity and a application period I \ a rest period T ₀ of the voltage to be described later) is scan I Tsu switch provided in the preheating circuit electrode), (9) the discharge lamp ( ⁴ ) A variable resistance ballast that controls the discharge current.

In the configuration shown in FIG. 1-FIG. 2, in Figure 3 have a the application period of the shown earthenware pots by to name electrostatic EE and rest period T _0, frequency and duration, T ₀ De-menu Te The experiment was performed using a power supply with variable recycling.

First, a discharge lamp without a fluorescent substance is lit in the circuit as described above, and when the period T ₀ is zero and when the period T ₀ is provided, the discharge state is observed and observed under various conditions. Measurements were taken. The switch (S) was closed only when the discharge lamp ( ⁴ ) was started, and was opened during measurement.

You,餐光lamp ⁽⁴⁾ 1 1 ⁸ 7 dish is the pipe length L for, tube inner diameter ø is Lord and to 3 0 to but also had a C, is then related to a small number of even 2 2丽or et al. 3 6 〇 Changed firmly. Also enclosed υκDO A Noble gases were used in various simple and mixed forms, and their encapsulation amounts varied greatly. ¾ Mercury (b) encapsulated almost a constant amount of 25. .

These samples were placed in flowing water for about 6 £, and as shown in Fig. 2, they were lit using a high-frequency inverter with a square-wave output voltage using a resistance ballast. The discharge current, lighting frequency, and flowing water temperature were varied to observe the state of the discharge, and the emission lines of rare gases and mercury were measured. As a result, when moving fringes occur on the positive column, the emission of rare gas on the positive column becomes prominent, while the emission of mercury, especially the resonance radiation intensity of 253.7 丽, is greatly reduced. Was observed for many samples. The knitting and extinction of the moving fringes depends on the discharge current, lighting frequency, running water temperature, etc., but especially for lighting frequencies above l KHz, the higher the general frequency, the less the moving fringes tend to occur. I knew that there was. However, the relative intensity of the resonance radiation corresponding to the input power of the discharge lamp (the product of the effective value of the current and the effective value of the voltage) does not necessarily increase as the operating frequency increases. Obtained.

It to the cormorants by shown in FIG. 3 in this, the electrode during lighting of the discharge lamp) ⁽²⁾ by connexion applying period and this providing a pause period T ₀ to a voltage applied between to tank, Moving fringes can be suppressed in the same manner as when the frequency is increased, and the resonance radiation energy efficiency can be improved as compared with the case where the frequency is simply increased. I thought it might be.

OP! Further references (Car 1 Kenty: Journal of Applied Physics 21

According to (Dec) P1309-1318 (1950)), when the tube was lit at a commercial frequency effective value of 0.42 A under the condition that the pipe inner diameter ø was 36 and the sealed argon E was 3.5 Torr. the effective life of 25 3.7 mm photons mercury Ru ⁷ .6- 7.2 S preparative Ru One Tei, lighting frequency

At 20 KHz, the same experiment as above was performed with the voltage rest period T ₀ set to about 7 AS.

As a result of the above experiment, the movement fringes were suppressed by providing a short pause period ¾ at various frequencies and various current values, and the movement fringes were reduced or disappeared. It was found that the resonance emission intensity of 7 nm mercury increased.

Therefore, a 40W rapid-start type fluorescent lamp was used as the discharge lamp ( ⁴ ), with a constant frequency of 17KHZ and a constant current effective value.

Period T at 0.42 A. The relative luminous flux value was measured while varying. Figure 4 shows the results. Ryo Le Gore emissions sealed discharge lamp solid line A in have you in the drawing about ^{_{^{2. 6 Τ ΟΓΓ (4),}}} - A Le Gore emissions of Ten鎮line Β about 2.2 Tor r (35%) · click Li Bed DOO (45%)

• Neon (20%) data from a mixed gas-filled discharge lamp ( ⁴ ). The maximum of the light beam increases pause period T ₀ to Let 's that seen in the figure at 7 ~ 8 S is seen, run-up of Ryo Le Gore-down sealed compared to the case that the rate of increase period T ₀ is zero ( ^A large ¾ value of about ⁷ was obtained in ⁴ ), and about 13 with a lamp containing mixed gas.

In addition, in Fig. ⁴ , actual C is a lighting frequency of 5ΚΗΖ, approximately

The case of 2.6 Torr argon-filled gas is shown. A Le Gore down the operating frequency 5 KHz to about 2.2 T _{or r} (35%), click Li Bed tons (45%), which shows the case of a mixed gas enclosed value on (20%). .

In addition, an experiment was conducted to examine how the increase in the luminous flux changes depending on the lighting frequency. In this experiment, the mixed gas was used as the discharge lamp ( ⁴ ), and the idle period T was 36 Hz or less. There about - constant, the ratio of the period Ί and duration T ₀ to come to have exceeded the 36 KHz to about 1: set to 1, to measure the light flux value at the current rms value 0. ⁴ 2 Alpha. As a result of the in solid line in Figure 5 shows a one-dot chain line shows the relative luminous flux value of If no rest period in current effective value is the same 0. ⁴² Alpha. ¾The relative luminous flux values in the figure are those using a test ballast specified in JIS, and the luminous flux value when lit by a commercial AC power supply is 100%. The power sale by be seen, seen the effect of providing the always quiescent period T ₀ at the above lighting frequency 1 KHz, the number of lighting frequency is seen that it is a maximum that effective杲is at 20 KHz vicinity.

At this point, the maximum value of the relative luminous flux varies depending on parameters such as the lighting frequency, the rest period, and the composition of the rare gas charged in the lamp. It was confirmed that a higher luminous flux value can be obtained with AC high-frequency lighting if the pause period is 0.5 to 15 S, compared to conventional commercial frequency lighting without a pause period.

Here, a specific circuit configuration suitable for carrying out the present invention will be described with reference to FIG.

OMPI In the figure, (5) is a 100 V AC power supply, (10 is a power switch, 01) is a full-wave rectifier, 02 is a smoothing capacitor, CL3 is a voltage dividing resistor, and a constant. E-diode, (is is switching leg

— A power supply IC, fl5a) is a pair of IC output transistors, (1 is a pair of power amplification frequency transistors, and output transformer 7). A push-pull circuit is formed at the same time. ^ Is a base resistance that applies current to the base of each transistor α via the minute EE resistor C13 and the transistor (15a), and (17S) is a resistor. The secondary winding of lance ^, (17F) is a pair of filament windings, and 9 is a capacitor ballast.

Oite to be good cormorant configuration of this, IC 09 of the door run-g is te (I5 _a) (15b) one the period in which respectively open and close: ^ DOO run-g is te (1) is opened Then, by setting the time until the other transistor (15b) closes to 8 S, the two windings of the trans-α are almost as shown in Fig. 3. The waveform shown in the figure was obtained, its frequency was about 20 and the idle period T. Was 8 με and the period ^ was 17 AS. And lighting a discharge lamp (4) in its Yo I Do voltage, discharge current effective value this filtrate and was adjusted to ^0.4 2 Let 's that the A Ni ballast 9, the electrode during steady lighting (2) (2) The E waveform applied during this period is almost a triangular wave, and its idle period Τ. Was about 7.5 S. When the luminous flux value and the input power of the discharge lamp (4) were measured in such a state, it was found that the argon-filled discharge lamp ( ⁴ ) had a commercial station wave; In comparison, the efficiency improvement of the lamp alone is about 16 and the efficiency improvement of the whole equipment is about 30 ^, For the mixed gas-filled discharge lamp ( ⁴ ), the efficiency of the lamp alone was improved by about 20%, and the efficiency of the entire system was improved by about 33%, an unprecedentedly high value.

Electrodes (2)) circuits to provide a rest period T ₀ to a voltage applied between is known variously in other than those of Figure 6, consider suppression phenomenon or et of moving stripes, either it al It is presumed that this has the effect of improving the efficiency of the discharge lamp ( ⁴ ). However, suspension period Τ. If the ratio is less than 0.5 / ts, the efficiency improvement effect is low.

Also, depending on the device, for example, as shown in Fig. 7, the rest period T. May be unclear, but in the present invention, it is defined as follows. Suruwachi electrode) ⁽²⁾ peak value of the applied voltage between 'Vp 1 0 value or al falling Ri time of ^ and, of 1 0 in Nema rising with time t ₂ When a relationship of 5 (+ t ₂ ) ≥ t ₀成立 holds between the sum (+ t ₂ ) and the zero voltage time t ₀ , the (t ₀ + + t ₂ ) is reduced to the idle period T ₀ If the zero voltage time t ₀ is longer than the above relationship, the time t ₀ is the idle period T. And

At this point, it was confirmed that as the applied power E, that is, the number of lighting station waves, increased, the power consumption decreased when the brightness was constant, that is, the efficiency increased. The lighting frequency is selected in consideration of the switching characteristics and the like. Although the current high-frequency lighting technique seems to be preferably 10 to ^{60 in} practice, if the high-frequency lighting technique advances, the pulse frequency is set to several 100 KHz and the lighting is performed. This is also practical enough It would be possible.

In addition, when the pulsating high-frequency wave is lit, the vapor of water is biased toward the cathode of the valve, the brightness of the discharge lamp becomes uneven, and the life of the discharge lamp is shortened. However, in the case of AC lighting, such a possibility is completely low.

Next, another embodiment of the present invention will be described below.

In other words, the mixed gas specific force of Kr and Ar as the noble gas; 1.0: 0.2 is used, and the water flow is the noble gas atomic temperature in the apparent positive column. When the temperature Τη is 40 C, the discharge lamp is filled with a rare gas so that the mole ratio Χ / Υ of the rare gas mole number X to the mercury vapor mole ratio 3.3 / Υ is 3.3 X 10 The experimental results are described.

Families the molar ratio X Zeta Upsilon is enclosed Ε force at ⁴ · 0 C for noble gases, Ru Oh ratio or al approximately determined meth amount of mercury vapor Ε force that put in 40 C.

In FIG. 8 is the water stream of the discharge lamp 40 C, the current peak value (Hopo rectangular wave) 0.42Α, illuminates 20Kappaitazeta, mercury 2 53.7舰of the feeder and was change the pause period T ₀ It shows a change in the absolute intensity of the resonance radiation. Although This figure Ru Tei and period Τ ₀ is the door-out of the strength of the zero and 10 0%, this value is about 1 to 7% High physicians Ri by case lit by a commercial power supply is also Ru Nodea. Period III, as seen in the figure. However, the strength is maximum at 7 to 8 X 1 G— ⁶ seconds, and the improvement in strength is as high as 35%. In addition, the period Τ ₀ is 15 X 1 (Γ The intensity is lower than that when there is no rest period T ₀ above ⁶ seconds. ¾ Period I Between T ₀ is Suruga there is a movement stripes have equivalent intensity in the positive column in-out door of zero, period Τ ₀ is 0.5~ 1 5 X 10 ~ ¾? In the range above, if the power supply voltage peak value is kept constant, the current peak value increases due to the provision of the period ， ₀ , and the moving fringes disappear or greatly decrease. Further it has the called mobile fringes be lowered at a constant value until the current peak value 0. ^{4 2} Alpha is increased to as if the period T ₀ is zero o

Fig. 9 shows the change in the relative intensity of 253.7 放射 radiation when the lighting frequency was changed using the same discharge lamp as that used for the measurement in Fig. S. The solid line in the figure is the idle period T at frequencies below ³⁶ KHz. There about 7 X 10- ⁶ - constant, the can it was beyond 36 KHz 'period I \ and T ₀ is also a ratio of about 1 case of set to the with Nodea is, - the point chain line period T. Since There is also the case of zero, 0C, running water temperature ⁴ to also as a data under the matter conditions of the current Bee-click value 0. ⁴ 2A. This figure shows the radiation intensity when turned on by commercial power as 100%. The power sale by be seen, the lighting frequency is always observed effect杲having a hibernation period T ₀ Te odor than 1 KHz, the lighting frequency is maximum, the effect at 20 KHz near neighbor.

(4) It is considered that the running water temperature of 40 C almost corresponds to the air 25 in a windless state for the vapor pressure of mercury.

And a rare gas - _6, 1 ", each of ₆阜体, electrostatic rms 0 - ²

~ 2A, Ji flowing water temperature 5-60, lit the molar ratio X / Y is 0.5 X 1 (Γ~; for the species' s discharge lamp L.0 range of X 1 0 ^4, the discharge

ΟΜΡ! In the same way as the lamp, the effect of setting the period T ₀ was recognized.

The reason for limiting the mole ratio X Ζ で in the present invention is that when the type of the rare gas, the number of lighting station waves, and the pause period Τ ₀ are determined, the mole ratio XZY and the apparent rare gas The generation and disappearance of the moving fringes occur at the boundary defined by the atomic temperature Tn. In this example, too, the lamp ( ⁴ ) was turned on using the lighting device (Α) by the circuit having the configuration shown in FIG. 6, and the lamp ( ⁴ ) was in a steady state. After that, the luminous flux value and the power were measured.

The discharge lamp of 40W of tube inner diameter of Ar encapsulation 30 ⁽⁴⁾ above Symbol conditions and current effective value ^{0.4 2} when illuminated A molar ratio XZY (rare gas scan atoms temperature tube central portion temperature , And the mercury vapor pressure was determined to correspond to the temperature of the coldest part.) Is 0.64 × 10, which is about 16% improvement in the efficiency of the lamp alone compared to when operating at commercial frequency. , The efficiency of the equipment was improved by about 30

¾ High value: ^ obtained.

Then the mixing molar ratio of the Kr and Alpha _gamma alve dimensions & Similar to be the in and the actual旆例1.0: This discharge lamp 0-2 ⁽⁴⁾ lit under the same conditions as above , The molar ratio of the mixed rare gas to mercury vapor X

Ζ Υ is Ri and 0. ⁴ X 10 ^3, efficiency improvement of the run-up alone is about 19 ^, improve the efficiency of the entire device was Tsu Oh about 32 ^.

When a discharge lamp ( ⁴ ) with a tube inner diameter of 23 m and a tube length L of 1187 mm and filled with a Kr-Fu body was lit under the same conditions as in the above ^^, the molar ratio XZY was 0.7 X 10 Improve pump efficiency

, ^ ¾ \} Khi A A \

, Was about 20%, and the efficiency improvement of the entire device was about 33%. When the discharge lamp ( ⁴ ) with Kr alone was lit at an effective current value of 0.23 A, the mole ratio X / Y was 0.17 X 10, and the efficiency improvement of the lamp alone was about 22%, and the efficiency improvement of the whole equipment was about 34.

A rare gas mixture with a mixed mole ratio of 79 of Ar, Kr, and Ne was sealed in a valve with a pipe inner diameter of ø36 lightning and a pipe length L of 2354, and was lit with an effective current value of 0.8 A. the filtrate 'molar ratio X / Y is Ri Do and 0.25 XI 0 ^3, efficiency of the run-up alone Ri Ah at about 15% efficiency of the instrumentation置全bodies were Tsu der about 34%.

Also - _e, the mixing molar ratio of 7 3 of the rare gas mixture of A _r, tube inner diameter ø 36 Haze, tube length L is enclosed in alve of 2354, Ri progeny of liquid mercury (b) In addition, a discharge lamp (4) with an In-H-finished gal- gum placed near the electrode ² ) was lit at an effective current of 2 A. In If this happens mercury vapor. Atm 4.5 X 10 ^"3 Torr, molar ratio chi, Upsilon is Ri Do and 0.56 XI 0 ^3, run-up alone efficiency is 14, device increase overall efficiency of about 3 It was 6.

The above embodiment relates to a discharge lamp (4) having relatively high practicality. The power is only a few examples of the effect of the present invention, and when the above experiment is taken into consideration, an appropriate pause period is considered. the this cormorants have and the Τ ₀ provided to improve the run-up efficiency, be said very Ru Oh and valid against a wide range of the discharge lamp ^(4). Also in this example, the maximum value of the relative luminous flux value depends on the lighting frequency, the pause period, and the lamp.

O PI Lights at 1 KHz or more, although it varies depending on the composition of the filled gas.

However, it was confirmed that when the pause period was set to 0.5 to 15 AS, the luminous flux value increased compared to the conventional commercial frequency lighting without the pause period.

Claims

• The scope of the claims

1. A low-pressure mercury vapor discharge lamp that forms a discharge path between the electrodes and a lighting device that turns on the discharge lamp at a frequency of 1 KHz or more with alternating current. A low-pressure mercury vapor discharge lamp device characterized in that the lighting device is configured so that the voltage applied to the lighting device has a rest period of 0.5 X 10 seconds or more and 15 X 10 seconds or less. .

2. The low-pressure mercury vapor discharge lamp device according to claim 1, wherein the voltage applied between the electrodes of the discharge lamp is a rectangular wave.

3. The low-pressure mercury vapor discharge lamp device according to claim 2, wherein the lighting device lights the discharge lamp at a frequency of 1 mm or more and 10 OK or less.

4. The low-pressure mercury vapor discharge lamp device according to claim 3, wherein the lighting device lights the discharge ^ at a frequency of ¹⁵ KHz to 50 KHz.

5 A lamp equipped with a low-pressure water vapor discharge lamp that forms a discharge path between the electrodes by enclosing a rare gas and a mercury vapor core, and a lighting device that lights this discharge lamp with AC at a frequency of 1 KHz or more. in, the voltage applied between the electrodes at the time of lighting of the discharge lamp, 0. ⁵ X 1 ⁽⁶ seconds, etc. constituting the lighting device in earthenware pots by having a pause period of 1 ⁵ X 1 (5 seconds or less At the same time, when the discharge lamp is in a steady state, the number of moles of the rare gas with respect to the number of moles of mercury vapor in the discharge lamp, X

OMR

W1PO Ratio X Roh Y is 0.5 X 1 0 ² or more, 1 .0 X 1 0 ⁴ the discharge lamp Ni Let 's Ru ¾ below and a low-pressure mercury vapor discharge lamp device according to Toku徵that you have configured the lighting device .

a The low mercury vapor discharge lamp device according to claim 5, wherein the electric power E applied between the electrodes of the discharge lamp is a rectangular wave.

? 7. The low-E mercury vapor discharge lamp device according to claim 6, wherein the lighting device lights the discharge lamp at a frequency of not less than lOK and not more than IOOKHZ.

a The low-E mercury vapor discharge lamp device according to claim 7, wherein the lighting device lights the discharge lamp at a frequency of 15 KHz or more and 50 KHz or less. ·

a noble _{gas, N e, A r, Kr} , either that it is a unitary Shi had scope fifth Koru claims to Toku徵paragraph 8 of have Zurekani SL载low E of Xe Mercury vapor discharge lamp device.

10. The low-mercury vapor discharge lamp device according to claim 5, wherein the rare gas is a mixture of two or more rare gases.

11. The low-pressure mercury vapor discharge lamp device described in claim S10, wherein the mercury vapor generator is a multi-gamut.

12. The low-pressure mercury vapor discharge lamp according to claim 10, wherein the effective discharge current of the low-water vapor discharge lamp is not less than Q.2 A and not more than 20 mm. apparatus.

O PI

, WIPO Amended claims

According to the International Bureau, January 26, 1981, accepted (26. 10. 82)

(1) Equipped with a low-pressure mercury vapor discharge lamp that encloses a rare gas and a mercury vapor generator and forms a discharge path between the electrodes, and a lighting device that lights this discharge lamp at a frequency of 1 KHz or more. In the above, the above-mentioned rare gas is a mixed rare gas containing at least one of Kr and Xe alone, or at least one of Kr and Xe, voltage applied between the upper Symbol electrode during lighting of the discharge lamp, ^0.5 ^10-5 seconds or more, to also to have a rest period of 15 X 10 ⁶ seconds or less, the discharge current the effective value 0.2 a As described above, the lighting device is configured so as to be 2 A or less, and the inner diameter D cage of the discharge lamp is within the range of 23 ≤ D <35. The ratio XZY between the number of moles γ and the number of moles X of the rare gas is

A low-pressure mercury vapor discharge lamp device characterized in that it is set in the range of 0.5 X 10 ² ^ / Ύ ≤ 1.0 X 10 ⁴ .

(2) The low-pressure mercury vapor discharge lamp device according to claim (1), wherein the mercury vapor generating body is an amalgam.