JPS5960958A - Low pressure mercury vapor lamp - Google Patents

Abstract

PURPOSE:To provide a low pressure mercury vapor lamp which can make a large current flow by installing two sets of electrodes comprising an anode and a cathode inside a bulb, and directly connecting the anode to the cathode, and specifying the dimension of the anode. CONSTITUTION:The first set and the second set of directly heated cathodes and anodes 1a, 2a, 1b, and 2b are installed inside a bulb 6 respectively, and the anodes 2 are directly connected to the cathodes 1. Rare gas containing mercury is filled inside the bulb 6. The dimension of the anodes is set so that a shielding ratio in a diameter direction of the bulb 6 is 80% or less, the length in axis direction is 5mm. or more. Different sets of anodes 2 and cathodes 1 are discharged alternately by using windings 5a and 5b of a transformer 5 as a power source and inding 5c of it for discharge luminescence. Therefore, the lamp can be made a current of tens amperes to flow and be made to compact and long life.

Description

[Detailed description of the invention] The present invention relates to a low pressure mercury lamp system.

Conventional low-pressure mercury lamp devices are used for luminescent lamps, germicidal lamps, photochemical reactions, etc., and their rung current is about 0.4 A per ton. And even those that are called ultra-high output types have 2Aa degrees. By the way, if the rung current is set to 2A or more, the unit length of the light emitting section increases by the rung power per unit. Therefore, it becomes possible to relatively miniaturize the device and increase the radiation spectral density, which improves the light reaction. It is expected that there will be a possibility of raising the revenue, increasing the sterilization processing Ipr per unit time, and reducing the amount of sterilization. Therefore, in industrial applications, a low-pressure mercury lamp device with a large rung current is desired without increasing the size of the device. However, with conventional low-pressure mercury lamp devices, when trying to pass a large alternating current, when the pole is in anode mode, the WL extreme temperature rises due to Gunko Ayao.
'The electronic radioactive material (commonly known as emitter) that is used in the lighting is severely consumed, causing blackening of the bulb and poor lighting, resulting in a life-threatening situation. In order to prevent this, conventional row auxiliary anodes are provided,
There are some that use an electronic technique board with a power of 11, but the rung current is 2 A Pi' and the degree is 1! If the lamp is overheated, the relaxation effect is diminished, and conventional low-pressure mercury lamp devices are small and have a long lifespan. f Iγ1.
Low-pressure water ωt for hatching chicks (lighting device exists L'fX)
won.

Therefore, the purpose of the present invention is to provide a low-pressure water lamp 0 lamps flb, 1? with a large flow of 1μ, while maintaining a small flow and a long life. 2 sets of 1-electrode assembly in the bulb, including 1-electrode assembly and 1-electrode assembly, and insert a semiconductor rectifying element in each electrode assembly. [The guest is connected to the first team, and the anode is placed in front of the anode and the cathode is placed in front of the valve. It has a cross-sectional area of The positive polarity and (unilateral polarity) are discharged 1−τ
, which is characterized by alternating repetitions of discharges or sustained charges.

The present invention will be specifically explained below from 1-fx with reference to the drawings.

FIG. 1 is an explanatory diagram of a low-pressure water lamp (clam) including the features of the present invention, in which 1a and 2au respectively belong to the first set of directly heated hot cathodes and anodes, and 1b and 2b respectively A direct heating type heat field tilt and an anode that belong to the second set, and in each set, the @ pole is connected to one side of the cathode. Adjacent 1β1 of each set (placed in front of the pole, size of the anode i,)
The height of the curve 6 in the radial direction (the value expressed in terms of cross-sectional area) is 80% or less, and the length in the axial direction of the discharge path is 5 mm or more. This pair of anode and cathode is attached to both ends 5a and +3b of the bulb 6, respectively.
1. ing. And in the bulb 6, the mercury of λ is also 1-
〈 is mercury and argon - which noble gas is different? 04 h' Choke coil for limiting electrolysis, 5 indicates a transformer, and secondary windings 5a and 5b are used for the first and second windings, respectively. Anode 2a12b is used as a power source for direct heating polishing (bolla, lb), and the secondary winding 5C belongs to each silk.
It is connected to the LED to provide discharge light emission. - The following formula 1145cL is connected to a commercial power supply, for example, AC 100V or 200V power supply 7.

In the above-mentioned low-pressure mercury lamp device, discharge formation is as follows.

In the first alternating current half cycle, current flows as shown by arrow 8, and in the next half cycle, current flows as shown by arrow 9. This J9 is repeated alternately, and the discharge continues. For the current of one set, the opposite flow of the Ilt element is adopted.

In other words, a discharge is formed in pairs, such as a positive electrode, a negative electrode, and a negative electrode, each ending in another pair, alternately passing through the same discharge medium.

The basic advantages of the above-mentioned low-pressure mercury lamp device are listed below.

(1) 1. Since the positive pole and the negative pole are different from each other, the design considerations are different.
In the case of the present invention, based only on the design concept of the positive electrode for the d1 anode,
Since it can be installed and installed based only on the design concept of a 1U" shade room, it can be roasted using a high-current, low-pressure mercury lamp device or a steamer. In addition, it becomes easier to design an electrode with a long service life and a low discharge starting voltage.

(2) When a metal diffuser lamp with a long arc length is mixed with a conventional self-flow discharge lamp and an E2 type, the metal ions are biased toward the cathode side, causing uneven light emission, but the present invention This method eliminates such drawbacks.

The above advantages can be clearly understood by looking at the following design 91.1.

The bulb uses ozone-free quartz with a self-sweeping rating of 10%.The arc length is 300W and the L1 discharge body is used as the discharge source.
The vapor pressure during light emission is 6 x 1. Mercury to become OrnmHg and argon gas if0, 3+++rvHg are sealed. In this case, the voltage of the low-pressure water ψμ lamp is about 59V, the radio wave is 4A, and the Q power consumption is about 200W! ! -It became. And as a cathode, (Ba
SrCa)) 3e (4 (barium strontium trinium berylate) is coated l-τ, which is the most m-emissive binding 1 and 1-1@pole, which can withstand the shell of large electrons. Like tungsten rod T JAY
IJVL1 Is and NtL based on robustness. Therefore, the low-pressure water lantern W shown above is about one-sixth the size of the conventional σ), has a smaller power and power, and has a significantly higher current. It is possible to make a large roll, and as a result, the number of ultraviolet rays #! can be significantly increased.

It has been known that in a low-pressure mercury lamp, the ultraviolet radiation increases as the current value f'L increases, but a compact, long-life low-pressure mercury lamp device cannot be achieved at all with the conventional design concept. This is a parent, a fluorescent burner in the city, Mr. Lee's pressure mercury lamp,
#The current value of the fungal lamp is 2A-1/! :T It's obvious if you think about it.

Comparing the conventional germicidal lamp with a power of about 200 W and the low-pressure mercury lamp device with a top b1'' in terms of the amount of radiation from the arc per 1σ7 of 2537 A, the present invention has a radiation intensity of 1, while the radiation intensity is several dozen. The productivity is so high that it is incomparable when used for childbirth.

As can be seen from the example of durability of the low-pressure mercury lamp device mentioned above, (3) A small, long-life low-pressure mercury lamp device that can be used with a current value of several tens of A Nff can easily obtain a VC compared to the conventional one. (4) 1849 A as the valve material
If you use transparent quartz glass, you can get a low-pressure mercury lamp +5 units for powerful ozone generation.

(5) Ozone-free bulbs can be made of hard glass for germicidal lamps, and a powerful sterilizing device that generates ozone can be obtained.

There are advantages to saying that.

What about quartz glass, ozone-free quartz glass, and glass for germicidal lamps? There are also commercially available products with spectral transmittance characteristics, for example,
It is also described in Toshiba Review (Volume 34, Issue 5, Page 448) Glass Engineering Handbook M670R (114 Kura Shoten, June 20, 1948, 10th edition). In addition to the above-mentioned materials, translucent ceramic tubes such as polycrystalline alumina (trade name: Lucarox) can also be used.

The water @ vapor pressure during discharge light emission can be controlled by using a mercury-enclosed tank made by discharge firing, or by setting a water conditioning device in the bulb and setting the temperature of the water conditioning device by PLR. This can be achieved by keeping I/'LL at a constant value.

An indirectly heated type may be used as the frozen or hot cathode.

Known methods can also be used for these preparations. The inside of valve 6'4 in history! lL < means that a fluorescent lamp is coated on the outer surface to obtain strong light emission.Also, it is possible to use a fluorescent lamp and L″r configuration 1-0. However, T′ is compared to the low-pressure mercury lamp of the above design example f%VC:L-m
in,! For use in river waves, the anode and cathode in each set have different radial values, as described above, so ionization sludge is generated every half cycle of alternating current. I must be completely 1 effect and L must be 1 so that it flows into the cathode. And it really depends on each rectangle, the position of the poles, the four shapes, and the dimensions. Rabbit 1 no 1. Taking the i-1 electrode as an example and clarifying dψ,
Self 1σ) Soft electrode, pole is 2nd σ) Silky electrode, 71
half cycle of the frass potential τ゛←r electric current t(l-J
The anode force must flow completely. The current from the cathode is 1
11. No leakage means that %i Δi with respect to the cathode
75'8 means that if the rung current is as large as the rung of the present invention, the width of failure will be very high. SoL T (Ba5rCa)BeQ, m
5vx mitsuta 1 moment, it caused a violent opening and became a %y ÷ 19A match.

In order to prevent the above 41, the anode (r-
How to attach each cape to each other (special request) 1? J55-6
3422 Inventor Arakawa and two others), but the present invention
d-H Note 1-, which is a half-body rectifier, attempts to eliminate the similar problem by regulating the position and size of the 114 poles. As a result of various tirQ) experiments, it was found that the following conditions were necessary in order for the current to flow completely from the anode in the tidal mode.

(1) The first pole must be placed before the cathode.

Since both the anode and the cathode are connected at the connection position 3a, they have the same potential, and the electrons (dj attack also flow into the nearby electrode) from the discharge path Ftil force η.

(2) The anode needs to have a certain degree of strength. In each electrode set, there is no current fl from the anode force in the anode mode. In other words, in order for electrons to flow into it, the anode must have a certain degree of fineness. So i7C mark, Figures 1 and 2 show frost removal by the anode in the cross section in the radial direction of the bulb; the shielding rate for the path, that is, (d/D)2 is less than sail 8 (80%), and the rh of the anode: path The calyx must have 5 or more calyxes in the axial direction.

Anode - Normal side electron #I Tungsten with high adhesiveness is used. Therefore, if (d/1)f exceeds 0.8'i, the discharge path will be greatly constricted in the C cathode mode, which will increase the discharge resistance and worsen the lighting performance.

And the shielding rate is preferably 10 to 30 inches.

In any case, the anode has a long elongation 1 in the axial direction of the discharge path depending on the discharge state, but if the elongation is not sufficient,
Due to the so-called electron seepage LJ, one electron reaches the cathode. That is, the lamp current in a half cycle of an AC discharge is 11, the electric current flowing from the anode force, f
Ia, Yin (air flowing from water, let the flow be ■c F'1I
l=la+Ic ni'fz ri I'4ft 4fi
<Mode's threshold 11 = Ia Cathode mode's threshold II = ICK force is good. When in anode mode, if there is electron ``seepage'', Feng C60 K becomes C
/II becomes a certain ratio. If you surround f1 physically,
For example, valve diameter D = 10 mm i buttock PFd =
3.6mm Arc length 300ynm (-radiation'[
Mercury and argon gas whose vapor pressure during discharge light emission is 6X10*iHE are 0.3vmHE.

And the anode failure rate is 13%, lamp city, flow; 5
I while changing the anode discharge path axial force rotation length 1 at A.
When C/■1 is measured, it is 1r+ in Figure 3! It became Even if the rung current was changed from 2 to 20 A, the ratio of IC/IL at each point did not change at all. In other words, when (d/D) is 2 or less than 0.8, it is 1 or 5.
When the electrode is in the anode mode due to the ``seepage'' of electrons over a period of time, the electrode is in anode mode. Since it will be used in a high-current, low-pressure water-powered lamp device, it will be possible to provide a large-current, low-pressure water-powered lamp device.
1λ Ge (BaSrCa) B802i applied +5
At the pole, q rm: 4 h = 9ησ) tithe 14
It is impossible to trace the difference in the number of electrons emitted from a solar bomb.

[Brief explanation of the drawing]

Figure 1 shows the low-pressure water tank light attack ff1jσkal゛ mouth 9 of the present invention.
Clear figure, Figure 2 and 1 Obstacle rn' on line vC in Figure 1 II-II, Figure i! , Figure 3: The Fortress of Theta, a clear map. 1a, 1b-, negative 4+@2 a, 2 b-...anode 4
...Choke coil 5...Transformer 6...Valve Applicant Ushio Ushio Co., Ltd. Agent Patent attorney EH Toranosuke

Claims (1)

[Claims] Two sets of "electrode sets" each consisting of an anode and a cathode are provided in the bulb, and in each "electrode set", the anode is connected to the cathode without intervening a semiconductor rectifying element. The positive and negative electrodes are also located in front of the IW force, and have a cross-sectional area of 80q6J-1 below the valve cross-sectional area in the radial direction of the valve, and a length of 5 ttrm or more in the axial direction of the valve. The pressure inside the bulb is at least 1 Hz during lighting, Hq
A low-pressure mercury lamp device containing the following mercury, characterized in that an anode and a cathode belonging to different pairs discharge '/If, and this is repeated to sustain a discharge.