TW200931479A - Metal halide lamps - Google Patents

Abstract

The invention provides a metal halide lamp which illuminates agglomeratively. The rare gas, guide groove and thallium iodide are sealed in the metal halide lamp (1) as the electric discharge medium; electric discharge electrodes (3), (4) are disposed at two ends of a luminescent tube (2) along the axial direction, with the luminescence length of not less than 800mm, it is characterized in that the amount of guide groove Mh (mg/cc) and amount of thallium iodide guide groove Mt (mg/cc) are respectively ranged in 0.3mg/cc < Mh < 5.0mg/cc and 0.006mg/cc < Mt < 0.048mg/cc.

Description

200931479 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a metal halide lamp. [Prior Art] A metal halide lamp in which a discharge gas is sealed as a discharge medium, mercury and cesium iodide in a gas-tight arc tube, and discharge electrodes are provided at both ends of the arc tube in the tube axis direction may occur in 365. Since ultraviolet light having high luminescence intensity is around nm, it is useful as a light source used for curing of an ultraviolet curable coating or a photoreaction of a functional polymer film which has high market use in recent years. As one of such applications, in the use of a light source for manufacturing a panel of a liquid crystal display device, it is required to increase the light emission length in accordance with the enlargement of the panel size. However, in such a metal halide lamp, the mercury enclosed in the medium reacts with the quartz constituting the tube to blacken the inner surface of the tube, thereby shortening the life of the lamp. However, when cerium iodide is contained as the sealing medium, cerium ions are retained in the vicinity of the tube wall, and the re-coupling of the quartz tube wall of other metal ions of mercury is prevented, so that the life of the lamp can be extended. However, such a metal halide lamp containing cesium iodide is separated from the luminescence of mercury and cesium iodide in the lighting, so that a so-called separation luminescence phenomenon occurs, and a uniform lamp luminescence in the axial direction of the lamp cannot be obtained. Shortcomings. This separation luminescence phenomenon is more pronounced especially when the length of the lamp becomes longer. Further, if the length of the lamp is long, the arc during discharge cannot be maintained linearly along the tube axis, and there is a problem of the so-called arc swing which causes bending of the shaft. When such an arc swing occurs, the arc close to the wall of the tube partially overheats the molten lamp tube, and as a result of shortening the life of the lamp, a hole is formed in the pipe wall. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned technical problems, and provides a long metal halide which can prevent separation and emit light and can perform long-life and stable discharge. The object light is for the purpose. A metal halide lamp according to the present invention is characterized in that a rare gas, mercury and cesium iodide are sealed as a discharge medium in an airtight light-emitting tube, and discharge electrodes are provided at both ends of the light-emitting tube in the tube axis direction, and the light emission is long. The metal halide lamp of 800 mm or more is characterized in that the sealing amount Mh (mg/cc) of the mercury (Hg) and the sealing amount Mt (mg/CC) of the cerium iodide (T1I) are selected as follows. The range is 0.3 mg/cc &lt; Mh &lt; 5.0 mg / cc 0.006 mg / cc &lt; Mt &lt; 0.048 mg / cc. Further, in the metal halide lamp of the present invention, when the inner diameter of the arc tube is Dmm and the pressure of the sealed gas is Ptorr, the relationship between P and D satisfies the following formula 75 &lt; PxD &lt; 2125 Selected as a feature. According to the present invention, there is provided a metal halide lamp which can prevent separation light emission, maintains a discharge of uniform -6-200931479 light distribution along a tube axis, and does not reduce the reliability of blackening depending on mercury, and has a long life and a long shape. . Moreover, according to the present invention, it is possible to provide a long metal halide lamp which can prevent arc oscillation and maintain a stable discharge over a long life. [Embodiment 1] Hereinafter, the present invention will be described in detail based on the drawings. 1 embodiment. Fig. 1 is a view showing a metal halide lamp 1 according to an embodiment of the present invention. The metal halide lamp 1 is provided with a flame-resistant metal such as tungsten, nickel, molybdenum or molybdenum, or a metal electrode 3 such as stainless steel or titanium, at both ends of the quartz light-emitting tube 2 having ultraviolet transmittance. The configuration of the lamp holders 5, 6 is separately provided on the outside. An example of the specification of the metal halide lamp 1 is that the lamp emits light of 1000 mm, the inner diameter is 25 mm, the applied lamp voltage is 1275 V, and the lamp current is 13.5 A. Further, the enclosed gas was obtained by using argon as a rare gas component, and iodine ruthenium ruthenium (32 mg/cc) was added thereto, and mercury was added at 1.68 mg/cc. The gas pressure P of the rare gas (t〇r〇 is 250t〇rr. The amount of mercury enclosed in Mh (mg/cc) and the amount of blocked iodide Mt (mg/cc) are respectively selected at 0.3mg/cc&lt;Mh&lt;lt; In the range of 5.0 mg/cc, and 0.006 mg/cc &lt; Mt &lt; 0.048 mg/cc. The present inventors changed the amount of encapsulation of mercury and cesium iodide to operate the lamp, and observed the occurrence of separation luminescence. As a result of the experiment, when the amount of mercury and cesium iodide enclosed was within the range of these, it was confirmed that 200931479 was not separated and emitted. (Examples) Hereinafter, the present invention is applied to an example of a sample of 10 types. Table 1 shows the composition ratio when the amount of mercury (Hg) and cesium iodide (T1I) enclosed in each of the 10 types of prototypes 1 to 10 is changed. [Table 1] Trial lamp specifications Product number Hg Amount (mg/cc) Tll(mg/cc) 1 1.04 0.048 2 1.04 0.096 3 1.68 0.032 4 1.68 0.048 5 1.68 〇096 6 1.04 0.024 7 1.04 0 012 8 1.68 0.024 9 _0012_ 10 —__L68______ 1.04 --- - 0.006 ® @~13 is an example, and the prototype is tested in the same table. The product 3 1245 is a comparative example. The electrical characteristics and separation at the time of the process are shown in Table 2. Table 2 is a table showing the presence or absence of the kinetic light of each sample product. ~8&gt; 200931479 [Table 2] Electrical properties and the presence or absence of the separation luminescence Number separation light with or without lamp voltage (V) Lamp current (A) Lamp power (kW) 1 X 1455 15.8 21.6 2 X 1496 15.4 21.6 3 〇1979 11.4 21.6 4 X 2040 11.1 21.6 5 X 2086 10.9 21.6 6 〇1455 15.9 21.6 7 〇1425 16.1 21.6 8 〇1950 11.8 21.6 9 〇1902 12.1 21.6 10 〇1405 16.4 21.6 Again, pictures 2(a) to 2(g) show the spectral distribution at trial numbers 3, 5, 6~10 These graphs are graphs showing the spectral distribution of the left and right electrode portions of each of the prototype lamps. In these graphs, the spectral distribution of a trial number 5 of the comparative example is a spectral distribution indicating that the left and right are different, and the generation is indicated. In this case, the spectral distribution of the trial numbers 3, 6 to 10 of the embodiment of the present invention is such that the same spectral distribution is not shown, and the separation light emission is not generated. As a result of these experiments, rare gas, mercury, and cesium iodide are contained as a discharge medium, and in the metal halide lamp having a light emission length of 800 mm or more, the amount of mercury enclosed in Mh (mg/cc), and the iodine sharp encapsulation The amount Mt (mg/cc) was selected in the range of 0.3 mg/cc &lt; Mh &lt; 5.0 mg / cc, 0.006 mg / cc &lt; Mt &lt; 0.048 mg / cc, respectively, whereby it was confirmed that inhibition can be prevented. Separation luminescence phenomenon -9-200931479 (Embodiment 2) Hereinafter, a second embodiment of the present invention will be described. In this embodiment, the result of checking the relationship between the amount of encapsulation of the entire discharge medium and the separation illuminating phenomenon and the arc oscillating 'in relation to the inner diameter D (mm) of the arc tube 2' is only filled with 75 &lt; PxD &lt; 2125 (in terms of Pascal (PASCAL) converts the amount of 75xl33.320&lt;PxD&lt;2125xl33.320). For example, when the inner diameter D = 15 mm, the sealing pressure of the rare gas is P = 5 torr (about 667 Pa) or more, and when the inner diameter D is 35 mm, the sealing pressure of the rare gas is preferably P = 60 torr (about 8000 Pa) or less. Further, when the inner diameter D = 25 mm, it is preferable to confirm the sealing pressure P = l 〇 torr (about 1 332 Pa) as a rare gas. When the amount of the rare gas to be enclosed is small, the blackening of the mercury is remarkably generated and the reliability is lowered. However, the PxD is made 75 or more, and the rare gas can be sealed until the degree of blackening is not maintained. Trust at this point. Further, it is easy to diffuse mercury and cesium iodide, and arc sway is not generated, and the light emission of the lamp can be stably maintained. On the other hand, when the amount of entrapment of the rare gas is increased until PxD exceeds 2,125, the start/restart characteristics of the lamp are deteriorated, and the separation luminescence is remarkably exhibited. Therefore, the rare gas is adjusted so that the gas pressure P and the tube diameter D become 75 &lt; Ρχ D &lt; 2 1 2 5 , and there is no reduction in the reliability of blackening, and separation light emission does not occur. Excellent metal halide lamps are also available in the starting and restarting characteristics. -10- 200931479 The following shows the experimental results when determining the most appropriate range of PxD [Example 1] [Table 3]

Lamp length: 850mm lamp inner diameter: 25mm lamp current 113.5A lamp voltage: 1130V cesium iodide 0.032mg/cc, mercury 1.68mg/cc Sealed gas type: argon PxD 62.5 125 250 750 1000 1500 2000 2250 Rare gas (torr) 2.5 5 10 30 40 60 80 90 Separation and illuminance with or without 〇〇〇〇〇〇〇 Δ Start·Restart 〇〇〇〇〇〇〇Δ Reliability (blackening) Δ 〇〇〇〇〇〇〇Evaluation NG OK OK OK OK OK OK NG Ο In the first embodiment, as shown in the above table, for a metal halide lamp having a lamp length of 850 mm and a lamp inner diameter of 25 mm, argon gas was sealed to 2.5 torr (about 3 3 3 Pa) and 5 torr (about 667Pa) &gt; lOtorr (about 1 3 3 3Pa), 30torr (about 4000Pa), 40torr (about 5328Pa), 60torr (about 8000Pa), 80torr (about 1 0656Pa), 90torr (about 1 1 98 8Pa) of each gas pressure And the luminescence test was performed. As a result, when the PxD (mmxtorr) was a metal halide lamp of 62.5, blackening was remarkably observed, and it was judged that the reliability was low. In addition, when P X D (mmXt0rr) is 2250, blackening is not recognized, but separation light emission is generated, and the operational characteristics of starting and restarting are also deteriorated, and the lamp characteristics are generally determined to be defective. -11 - 200931479 In the case of each metal halide lamp with a PxD (mmxtorr) of 125 to 2000, there is no separation and light emission, and the operation characteristics of starting and restarting are also good, and it is confirmed that a good lamp indicating no blackening is observed characteristic. [Example 2] [Table 4] Lamp length: 1 000 mm lamp inner diameter: 25 mm lamp current 13.5 A lamp voltage: 1 1 330 V iodized snake 〇. 〇 32 mg/cc, mercury 1.68 mg/cc Sealed gas type: argon

PxD 62.5 125 250 750 1000 1500 2000 2250 Rare gas (torr) 2.5 5 10 30 40 60 80 90 Separation and luminescence with or without 〇〇〇〇〇〇〇 Δ Start/restart 〇〇〇〇〇〇 △ X Reliability (blackening) ) Δ 〇〇〇〇〇〇〇 evaluation NG OK OX OK OK OK OK NG

In the second embodiment, as shown in the above table, for a metal halide lamp having a lamp length of 1 000 mm and a lamp inner diameter of 25 mm, argon gas was sealed to 2.5 torr (about 3 3 3 Pa), 5 torr (about 667 Pa), and 10 torr ( Luminescence test was carried out at various gas pressures of about 1 33 3 Pa), 30 torr (about 4000 Pa), 40 torr (about 5 328 Pa), 60 torr (about 8000 Pa), 80 torr (about 1 〇 656 Pa), and 90 torr (about 1 1 98 8 Pa). . As a result, when the PxD (mmxtorr) was a metal halide lamp of 62.5, blackening was remarkably observed, and it was judged that the reliability was low. In addition, when Px D (mmxt〇rr) is 2250, blackening is not recognized, but separation light is generated, and the operating characteristics of starting and restarting are remarkably deteriorated, and the lamp characteristics are determined as follows in the overall -12-200931479. Bad person. In the case of the metal halide lamps having a PxD (mmxtorr) of 125 to 1,500, there was no separation and light emission, and the operation characteristics of starting and restarting were also good, and it was confirmed that good lamp characteristics were not observed. In addition, in the case of a metal halide lamp having a PxD (mmxtorr) of 2000, although it is recognized that the start-and-restart characteristics are slightly lowered, no separation light is generated, and blackening is not recognized. The characteristics are judged to be good as a whole.

[Example 3] [Table 5] Lamp length: 1 1 000 mm lamp inner diameter: 25 mm lamp current 13.5 A lamp voltage: 1 33 0V Bethray sharp 〇 〇 32 mg / cc, mercury 1.6 8 mg / cc enclosed gas type: gas

PxD 625 125 250 750 1000 1500 2000 2250 Rare gas (torr) 2.5 5 10 30 40 60 80 90 Separation luminescence with or without 〇〇〇〇〇〇〇 Δ Start·restart 〇〇〇〇〇〇Δ X Reliability (blackening) ) Δ 〇〇〇〇〇〇〇 Evaluation NG OK OK OK OK OK OK NG

In the third embodiment, as shown in the above table, for a metal halide lamp having a lamp length of 1000 mm and a lamp inner diameter of 25 mm, the helium gas is sealed into 2.5 torr (about 3 3 3 Pa), 5 torr (about 667 Pa), and lOtorr (about The luminescence test was carried out for each gas pressure of 1 33 3 Pa), 30 torr (about 4000 Pa), 40 torr (about 5 328 Pa), 60 torr (about 8000 Pa), 80 torr (about 10656 Pa), and 90 torr (about 11 988 Pa). -13-200931479 As a result, when the PxD (mmxtorr) was a metal halide lamp of 62.5, blackening was remarkably observed, and it was judged that the reliability was low. In addition, when Px D (mmxt〇rr) is 2250, blackening is not recognized, but separation light is generated, and the operation characteristics of 'starting and restarting are remarkably deteriorated, and the lamp characteristics are judged to be bad as a whole. In the case of each metal halide lamp having a PxD (mmxtorr) of 125 to 1 500, there is no separation and light emission, and the operation characteristics of starting and restarting are also good. It is confirmed that good lamp characteristics without blackening are observed. In addition, in the case of a metal halide lamp having a PxD (mmxtorr) of 2000, although it is recognized that the start-and-restart characteristics are slightly lowered, no separation light is generated, and blackening is not recognized. The characteristics are judged to be good as a whole. [Example 4] [Table 6] Lamp length: 1 800 mm lamp inner diameter = 25 mm lamp current 13, 5 A lamp voltage: 2400 V Iodized 〇 〇 〇 32 mg / cc, mercury 1.6 8 mg / cc enclosed gas type: -

PxD 625 125 250 750 1000 1875 2125 2250 Rare gas (torr) 25 5 10 30 40 75 85 90 Separation and luminescence with or without 〇〇〇〇〇〇 Δ Start·Restart 〇〇〇〇〇〇Δ Δ Reliability (blackening) ) △ 〇〇〇〇〇〇〇 Evaluation NG OK OK OK OK OK OK NG

In the fourth embodiment, as shown in the above table, for a metal halide lamp having a lamp length of 180 mm and a lamp inner diameter of 25 mm, the argon gas was sealed to be -14-200931479 2.5 torr (about 333 Pa), 5 torr (about 667Pa), lOtorr (about 1 33 3Pa), 30torr (about 4000Pa), 40torr (about 5328Pa), 75torr (about lOOOOPa), 85torr (about 1 1 3326Pa), 90torr (about 11 988Pa), and A luminescence test was performed. As a result, when the PxD (mmxtorr) was a metal halide lamp of 62.5, blackening was remarkably observed, and it was judged that the reliability was low. In addition, when Ρχ D (mmxt 〇rr) is 2250, blackening is not recognized, but separation light emission is generated, and the operation characteristics of starting and restarting are remarkably deteriorated, and the lamp characteristics are judged to be bad as a whole. In the case of the respective metal halide lamps having a PxD (mmxtorr) of 125 to 1875, there is no separation light emission, and the operation characteristics of starting and restarting are also good. It is confirmed that good lamp characteristics of blackening are not observed. In addition, in the case of a metal halide lamp having a PxD (mmxtorr) of 2125, although it is recognized that the start-and-restart characteristics are slightly lowered, no separation light is generated, and blackening is not recognized. The characteristics are judged to be good as a whole. [Example 5] [Table 7] Lamp length: 2000 mm lamp inner diameter 125 mm lamp current 13.5 A lamp voltage: 2660 V cesium iodide 0.032 mg/cc, mercury 1.68 mg/cc enclosed gas type: argon

PxD 625 125 250 750 1000 1875 2125 2250 Rare gas (torr) 25 5 10 30 40 75 85 90 Separation and luminescence with or without 〇〇〇〇〇〇〇 Δ Start·Restart 〇〇〇〇〇〇 Δ Δ Reliability (blackening) Δ 〇〇〇〇〇〇〇 evaluation NG OK OK OK OK OK OK NG -15- 200931479 In the fifth embodiment, as shown in the above table, for a metal halide lamp having a lamp length of 2000 mm and a lamp inner diameter of 25 mm, The argon gas is sealed into 2.5 torr (about 3 3 3 Pa), 5 torr (about 667 Pa), lOtorr (about 1 3 3 3 Pa), 30 torr (about 40 〇〇pa), 40 torr (about 532 8 Pa), 75 torr (about 1000 Pa) The luminescence test was carried out for each gas pressure of 85 torr (about 1 1 3 32 Pa) and 90 torr (about 11 988 Pa). As a result, when the PxD (mmxtorr) was a metal halide lamp of 62.5, blackening was remarkably observed, and it was judged that the reliability was low. In addition, when Px D (mmxt〇r〇 is 2250), blackening is not recognized, but separation light emission is generated, and the operation characteristics of starting and restarting are remarkably deteriorated, and the lamp characteristics are judged to be bad as a whole. When the metal halide lamps of the PxD (mmxtorr) are 125 to 1 875, there is no separation and light emission, and the operation characteristics of starting and restarting are also good, and it is confirmed that good lamp characteristics are not observed. In the case of a metal halide lamp having a PxD (mmxtorr) of 2125, the starting and restarting characteristics are slightly lower, but no separation light is generated, and blackening is not recognized. Therefore, the lamp characteristics are overall. (Embodiment 2) Hereinafter, a second embodiment of the present invention will be described. In the embodiment, a metal halide lamp capable of emitting light of 800 mm or longer is not provided with an arc swing. A discharge lamp that is stably turned on, and a lighting device-16-200931479. As described in the first embodiment, a rare gas is sealed as a discharge medium in an airtight state, and mercury and iron and an iodine electric electrode are disposed in the hair. The metal at both ends in the tube axis direction of the light pipe is ultraviolet light-emitting with a degree of 350 nm to 40 nm near the iron, and thus is used for ultraviolet hardening or for use in recent years. The functional film is useful for the light source of the photoreaction. However, such a metal halide lamp has a luminescent separation of water in the lighting, or an arc pendulum is easily generated by the length of the lamp. The arc in the discharge does not become straight and is in a state of being bent and bent. If the arc swing pressure fluctuates, and the temperature of the arc tube rises, it is inconvenient to expand the light pipe of the arc tube. The occurrence of the oscillation is due to the sound resonance of the public. The frequency of the power supply voltage is increased or decreased by the periodic input from the arc toward the coarse wave caused by the plasma (mercury vapor) (the input is increased and the thickness is reduced. Meanwhile, for the Waves are applied to the wall of the lamp, and reflected waves are reflected by the reflow. By the interference of the two waves, distributed waves that do not change in time are distributed. The unevenness of the internal pressure causes the arc state to be an unstable arc swing (bending). In the present embodiment, a rare gas, mercury, and cesium iodide are placed in the airtight light-emitting tube, and the light-emitting tube is placed in the light-emitting tube. The light-emitting tube 铊, which will discharge the halide light, the high-light-enhanced coating, the polymer, the thin silver, and the iodine, the problem of the lamp axis, and the lamp is generated when the lamp is made by the wall of the lamp, and When a pressure occurs on the tube wall, a metal halide lamp having a discharge length of 800 mm or more is provided at both ends of the dielectric tube sealing axis direction -17-200931479, and an electrode for discharge of the lamp is used. The stabilizer feeds the rectangular wave voltage and current, whereby the input voltage of the time axis and the current can be changed to be uniform, and the illumination of the lamp can be stably maintained. Hereinafter, the discharge lamp of this embodiment will be described in detail using Fig. 2 . The ultraviolet (UV) discharge lamp 52 is a metal halide lamp. For example, a flame-resistant metal such as tungsten, molybdenum or @铊, or a metal such as titanium or titanium is disposed inside the quartz light-emitting tube 520 having ultraviolet transmittance. Electrodes 521, 522 are provided, and lamp holders 523, 524 are respectively provided on the outside, and are shown as an example of the metal halide lamp 52. The outer diameter is 27.5 mm, the tube thickness is 1.5 mm, the luminous length is 1 000 mm, and the lamp voltage is 1 100V, lamp current 値 11.0A. Further, in the present invention, the luminous length L of the arc tube 520 is such that L2 800 mm can be used. Inside the arc tube 520, a rare gas having an argon (Ar) gas pressure of 10 Torr (about 13.3 322 Pa) is sealed, and mercury is at least 1.68 mg/cc, and cesium iodide (T11) is 0.01 mg/cc or less. Iodine snakes have large luminescence peaks at wavelengths of 352 nm, 365 nm, and 378 nm, especially around 352 nm and 378 nm. In sharp (T1), it has a strong bright line spectrum in the wavelength range of 352 nm, 365 nm, and 378 nm, and has the effect of reducing the luminous intensity of mercury, so 'suppresses the mercury emission of 3 13 nm, and can increase the relative increase by 340~ Luminous ultraviolet light in the wavelength range of 4 OOnm. Therefore, when the metal halide lamp 52 of the present embodiment is used in the production of a liquid crystal panel, the process of forming an alignment film on a glass plate by irradiating ultraviolet rays to polymerize the ultraviolet ray-reactive material, the process of -18-200931479 can be reduced. The characteristics of the wavelength domain 3 are greatly affected by ultraviolet radiation below 40 nm. The lighting circuit 54 of the discharge lamp lighting device of the present embodiment is an alternating current power source 541 and a voltage-current of the alternating current power source 541 is applied to the both ends of the metal toothed lamp 52. 542 constitutes. That is, the end sockets 523, 5 24 of the metal halide lamp 52 are mounted on the feed side lamp holders 531, 532, and the substabilizers 542 are fed to the feed side lamp holders 531, 532. Lamp metal toothed lamp 5 2. The detailed configuration of the electronic stabilizer 5 42 is shown in Fig. 4. The electronic constant device 542 is provided with an input filter 62 for suppressing the surge voltage with respect to the power supply input terminal of the alternating current 541, and a full-wave rectifier 63 for rectifying the alternating current. For the low-frequency filter 64 of the rectified current, the direct current-direct current becomes a predetermined voltage. a direct current DC/DC converter 65, a polarity switching pole switch 66, an output filter 67 for output current, and a tap 68, and output terminals HV1 and HV2 for lamp connection are connected to the dot puller 68. A cooling fan 69 is provided. On the other hand, in order to electronically control the electronic stabilizer 542, a control power source 71, a DC/DC converter 65, a pole switch 66, an analog control circuit 72 for controlling the cooling fan 69, a computer control circuit 73, and an operation panel are provided. Circuit 74. Further, the microcomputer control circuit 73 is connected to the input/output signal connector 75. In the discharge lamp lighting device of the present embodiment, the alternating current of the alternating current power source 541 is converted into a rectangular wave electric power of a predetermined frequency, and a rectangular wave current is fed to the discharge ends of the metal halide lamp 52. The two electrical points are stable. The current is stable. The current is reduced by -19- 200931479. The electrodes are 5 2 1,5 22 俾, and this is discharged. According to the discharge lamp lighting device of the present embodiment, the rectangular wave voltage and the current are fed by the electronic stabilizer 542 to the metal halide lamp 52 having an emission length of 800 mm or more, and the input voltage and current of the time axis can be obtained. The action is changed to a uniform sentence, and the light emission of the metal toothed lamp 52 can be stably maintained. (Example 1) For a rare gas in which an argon (Ar) gas was pressed at 10 Torr (about 13.3 322 Pa), mercury was 1.68 mg/cc, and the Twisting Chamber (Tll) 0.012 mg/cc was sealed in an outer diameter φ 27.5 mm, and the tube thickness was 1.5mm, a metal halide lamp inside the arc tube with a length of 800mm, a rectangular wave voltage of 1〇0Hz is applied to the electronic stabilizer, and the current is turned on, but a stable lighting without arc swing can be maintained. Fig. 5(a) is a diagram showing the no-load lamp voltage waveform at the time of starting, and Fig. 5(b) is a diagram showing the lamp current waveform immediately after the lighting. Further, Fig. 5 is a view showing a lamp current waveform in the lighting, whereby it is understood that a stable lamp current is obtained in the lighting. (Comparative Example 1) In the same manner as in Example 1, the inside of the arc tube having an outer diameter of 27.5 mm, a tube thickness of 1.5 mm, and an emission length of 800 mm was sealed with Hg, Fe, Sn, Hgl2, and Ar gas pressure of 10 Torr (about 13.3 322 Pa). The metal halide lamp is applied with a sine wave voltage of a frequency of 50 Hz in the anti-flow line 圏 stabilizer, and the current is turned on, but an arc swing occurs, and stable lighting cannot be obtained. -20- 200931479 (Example 2) For a rare gas in which an argon (Ar) gas is pressed at 10 Torr (about 13.3322 Pa), mercury is 1.68 mg/cc, and cesium iodide (T11) is 0.032 mg/cc, which is enclosed in an outer diameter φ 27.5 mm. The metal halide lamp inside the arc tube with a tube thickness of l_6mm and a length of 1300mm is applied with a rectangular wave voltage of a frequency of 10 Hz in the electronic stabilizer, and the current is turned on, but a stable lighting without arc swing can be maintained. Fig. 6 is a view showing the waveform of the lamp current in the lighting, whereby it is understood that a stable lamp current is obtained in the lighting. (Comparative Example 2) In the same metal halide lamp as in Example 2, a sinusoidal voltage having a frequency of 50 Hz was applied to the choke coil stabilizer, and the current was turned on, but an arc swing occurred, and stable lighting could not be obtained. (Embodiment 3) φ Hereinafter, a third embodiment of the present invention will be described. This embodiment is a metal halide lamp used in an ultraviolet irradiation device that can illuminate light having a wavelength of 300 nm to 330 nm. In the metal halide lamp of each of the above embodiments, the wavelength of the light that can be irradiated is in the vicinity of 340 nm to 40 〇 nm, and the irradiation cannot be performed at other wavelengths. However, in the production of a liquid crystal panel or the like, a resin such as a functional film which is cured by ultraviolet rays having a short wavelength of 300 nm to 300 nm is used, and therefore it is required to be efficiently and efficiently. A long metal halide lamp that steadily illuminates light in the field. -21 - 200931479 On. . , seal the picture and ask for it to be C. In the case of g/c, the medium in the g/c is said to be in the lamp 〇 〇 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 In the form of the genus of the genus, the ginseng iodine and zinc are used to form the water, and the silver-cobalt graphic water of the present state is applied according to the table, and the Mn ginseng is applied in the table. The metal halide lamp 10, and the rare gas 11, and the hermetic container 12, and the electrodes 13, 14 and the inlet 15 are shown. In the hermetic container 12 of a single tube composed of ultraviolet-transmitting quartz, a pair of electrodes 13 and 14 made of tungsten are used, and an argon gas is sealed in the internal space of the hermetic container 12 as a rare gas 11. In the metal halide lamp 10 of this configuration, a metal halide lamp in which at least mercury and cesium iodide are sealed is characterized in that the inner diameter D of the discharge tube is about 30 mm, and the input per unit length (W) /cm) is 60 W/cm or more, and the potential inclination D (V/cm) at the time of stable lighting is the sealing amount M of indium, manganese, and bismuth when lighting is performed at 9 &lt; D &lt; Mg/cc) is M2 0.01 mg/cc. Specifically, the metal halide lamp 10 is, for example, an outer tube diameter of 27.5 mm, a tube thickness of 1.5 mm, and an emission length of 1000 mm, and the lamp voltage of the metal toothed lamp 10 is 1275 V, and the lamp current 値 is 13.5 A, and is sealed separately. Indium, manganese, 铋 0.02 mg / cc. Thereby, it is possible to realize light emission having a wavelength of 300 nm to 3 30 nm, and it is possible to realize a metal halide lamp which does not cause spectroscopic or illuminance deviation (separated light emission) in the longitudinal axis direction of the metal halide lamp 1 〇 The substance enclosed in the inner space of -22-200931479 of the hermetic container 12 of the metal halide lamp 10 is described with reference to Figs. 9 to 16 for the wavelength of light emission of each substance. In the ninth to sixteenth drawings, the luminance (intensity) is shown in % on the vertical axis and the wavelength (nm) of light on the horizontal axis. First, in Fig. 9, cobalt (Co) is enclosed in In the case of the internal space of the metal halide lamp 10, the wavelength distribution at the time of light emission. In the case of cobalt, there is a peak of a wavelength around 300 nm to 3 30 nm, and it is confirmed that the wavelength is luminescence. Further, Fig. 10 shows a wavelength distribution in the case where indium (In) is sealed in the internal space of the metal halide lamp 1? In the case of indium, peaks are also present in the range of about 300 nm to 330 nm in the same manner as cobalt. Further, Fig. 1 shows a case where the bismuth (Bi) is sealed in the internal space of the metal halide lamp 1 ,, and the wavelength distribution at the time of light emission. In the case of ruthenium, the peak of the wavelength is present in the vicinity of 300 nm to 3 30 nm similarly to cobalt or indium, and the light emission at this wavelength can be confirmed. Q. In Fig. 12, the case where zinc (Zn) is sealed in the internal space of the metal halide lamp 1 ,, the wavelength distribution at the time of light emission. The case of zinc has a peak in the range of about 300 nm to 330 nm. Further, Fig. 13 is a view showing a case where manganese (?n) is sealed in the internal space of the metal sinus lamp 1?, and the wavelength distribution at the time of light emission. The case of manganese has a peak in the wavelength range of about 270 nm to 330 nm. Further, the wavelength characteristics of each of cobalt (Co), indium (In), bismuth (Bi), zinc (Zn), and manganese (Mn) are shown, but other things are titanium (Ti), antimony (Sb), and antimony ( When illuminating Si), it also has a peak 可-23-200931479 at a wavelength of 300 nm to 3 30 nm. Hereinafter, a graph in which a conventional iron metal halide lamp and a metal halide lamp of the present invention are compared in a wavelength distribution at the time of each light emission is shown in Figs. 4 and 15 . First, Fig. 14 is a view showing wavelength distribution characteristics when light is emitted by a conventional metal halide lamp of iron (Fe), and has shown cobalt (Co) and indium (In, respectively) in Figs. 9 and 10, respectively. The distribution characteristics of the wavelength. In the figure, the solid line of the thick width is iron (F e) * and the solid line of the middle width is the table (C 〇) ^ and the thin line indicates the indium (In). In Fig. 14, the peak of the wavelength of iron is present at about 3 60 nm to 370 nm. For this, it can be seen that both cobalt and indium have wavelengths in the range of 300 nm to 3 30 nm. Similarly, both yttrium and zinc have peaks at the emission wavelength in the range of 300 nm to 3 30 nm compared with iron. Further, in Fig. 16, manganese has a peak of luminescence wavelength in the range of 300 nm to 330 nm as compared with iron. In the metal halide lamp of the present invention, when any one of indium, manganese, lanthanum, zinc, and cobalt is selectively encapsulated, the amount of each substance in each case is taken as 〇.〇1 mg/cc. As described above, it is possible to suppress separation light emission which is likely to occur in the longitudinal direction, and to efficiently emit light of 300 to 3300 nm. Further, it is preferably a ratio of the amount of mercury, but the total amount of the substances to be enclosed is preferably 〇 1 m g / c c or less. Further, when the metal halide lamp is sealed with 0.3 mg/cc or more, respectively, when the temperature is lowered, the diffusion efficiency of each of mercury, indium, lanthanum, and cerium is lowered, and luminescence separation occurs. Therefore, the light-emitting separation occurs in the length direction -24 - 200931479, and the lamp performance cannot be satisfied. However, as a total amount of the sealing amount of 0.1 mg/cc or less, the light-emitting characteristics of the metal halide lamp can be stabilized to obtain a wavelength of 300 nm to 330 nm. Luminous. Therefore, it is possible to apply lamp illumination of a process such as a functional film which is not applicable at a conventional wavelength. According to the third embodiment of the present invention described above, it is possible to provide a metal halide lamp which can illuminate light having a wavelength of 300 nm to 300 nm. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a metal halide lamp according to a first embodiment of the present invention. Fig. 2(a) to Fig. 2(g) are graphs showing the spectral distribution of the metal halide lamp according to the first embodiment of the present invention. Fig. 3 is a block diagram showing the overall configuration of a discharge lamp and a lighting device according to a second embodiment of the present invention. Q Fig. 4 is a block diagram showing the configuration of the electronic stabilizer shown in Fig. 3. Fig. 5(a) is a waveform diagram showing the no-charge lamp voltage at the time of starting the discharge lamp of the second embodiment, and Fig. 5(b) is a diagram showing the waveform of the lamp current after the same lighting. Fig. 6 is a view showing a lamp current waveform in the lighting of the second embodiment of the present invention. Fig. 7 is a view showing a lamp current waveform in the lighting of the second embodiment of the present invention. -25-200931479 Fig. 8 is a view showing the configuration of a metal halide lamp according to a third embodiment of the present invention. Fig. 9 is a graph showing the emission wavelength distribution of cobalt in the metal halide lamp of the third embodiment of the present invention. Fig. 10 is a graph showing the emission wavelength distribution of indium of the metal halide lamp of the third embodiment of the present invention. Fig. 11 is a graph showing the emission wavelength distribution of ruthenium of the metal halide &amp; lamp of the third embodiment of the present invention. Figure 12 is a graph showing the emission wavelength distribution of zinc in the metal halide lamp of the third embodiment of the present invention. Figure 13 is a graph showing the emission wavelength distribution of manganese in the metal halide lamp of the third embodiment of the present invention. Figure 14 is a graph showing the emission wavelength distribution of iron, aluminum, and indium for comparison of the metal halide lamp of the third embodiment of the present invention. Fig. 15 is a graph showing an emission wavelength distribution of iron, lanthanum and manganese for comparing a gold halide lamp according to a third embodiment of the present invention. Fig. 16 is a graph showing an emission wavelength distribution of iron and manganese for comparing a metal halide lamp according to a third embodiment of the present invention. [Description of main components] 1 : Metal halide lamp 2 : Illuminated tube 3, 4 : Electrode 5, 6 : Lamp holder -26- 200931479 1 〇: Metal halide lamp 1 1 : Rare gas 1 2 : Hermetic container 1 3,1 4 : Electrode 15 : Lead-in wire 5 2 : Metal halide lamp 5 20 : Light-emitting tube 521, 522: Electrode 523, 524: Lamp holder 5 4: Lighting circuit 541: AC power supply 542: Electronic stabilizer

Claims (1)

200931479 X. Patent Application Scope A metal halide lamp is provided with a discharge gas in a gas-tight light-emitting tube as a discharge medium, a mercury gas and an iodized snake, and a discharge electrode is disposed at both ends of the light-emitting tube in the tube axis direction. The metal halide lamp having a light emission length of 80 〇mm or more is characterized in that the sealing amount Mh (mg/cc) of the mercury and the sealing amount Mt (mg/CC) of the cerium iodide are selected as follows. The range is 0.3 mg/cc &lt; Mh &lt; 5.0 mg / cc 0.006 mg / cc &lt; Mt &lt; 0.048 mg / cc. 2. The metal halide lamp according to claim 1, wherein the inner diameter of the arc tube is Dmm, and when the sealed gas pressure is Ptorr, P and D are satisfied, and the following formula 75 &lt;; PxD &lt; 2125 〇 way to choose. 3. The metal halide lamp of claim 1, wherein the rare gas is argon gas or helium gas. 4. The metal halide lamp of claim 2, wherein the rare gas is a gas or a gas. The metal halide lamp according to the first aspect of the invention, wherein at least one of indium, manganese, lanthanum, cobalt and zinc is further encapsulated in the discharge medium to be 0.01 mg/cc or more. 6. A discharge lamp lighting device, characterized in that: -28- 200931479 A metal halide lamp having a discharge length of 800 mm or more in which discharge electrodes are provided at both ends in the tube axis direction of the arc tube in a gas-tight light-emitting tube, in which a rare gas, mercury, and cesium iodide are sealed as a discharge medium. And an electronic stabilizer that feeds a rectangular wave voltage and current to the discharge electrode of the metal halide lamp. -29-