CN101527250B - Short arc type high voltage discharge lamp - Google Patents
Short arc type high voltage discharge lamp Download PDFInfo
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- CN101527250B CN101527250B CN2009101182595A CN200910118259A CN101527250B CN 101527250 B CN101527250 B CN 101527250B CN 2009101182595 A CN2009101182595 A CN 2009101182595A CN 200910118259 A CN200910118259 A CN 200910118259A CN 101527250 B CN101527250 B CN 101527250B
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- metallic plate
- heart yearn
- welding
- discharge lamp
- short arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/073—Main electrodes for high-pressure discharge lamps
- H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/025—Associated optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/073—Main electrodes for high-pressure discharge lamps
- H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
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- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
The invention provides a short arc type high pressure discharge lamp comprising a first metallic plate welded with the other end of the core wire which retains an electrode at one end thereof; a columnar body oppositely arranged with a tube-like body, separately by the first metallic plate; and a plurality of metallic foils contacted with the lateral surface of the columnar body and welded with the first metallic plate at one end; wherein, the first metallic plate is provided with a hole in the middle; the other end of the core wire is inserted into the hole; a welding portion welded with the core wire is arranged along the circumference direction of the hole at one lateral surface of the first metallic plate and the circumference direction of the hole at the other lateral surface; a conductive element is arranged between the welding portions and between the inner side of the hole and the circumference of the core wire. When welding the core wire maintaining the electrode and the first metallic plate arranged on the core wire, the resistance will not become higher and not generate local heating even if the welding portion has cracks.
Description
Technical field
The present invention relates to short arc type high-pressure discharge lamp.More detailed, the ultraviolet light source short arc discharge lamp when relating to manufacturings such as being used for semiconductor or liquid crystal, or be used for the short arc type high-pressure discharge lamp that has characteristic on the sealing cage structures such as xenon lamp of projector or stage illumination, lighting.
Background technology
Known in the manufacturing process of semiconductor or liquid crystal etc., as ultraviolet light source, use short arc discharge lamp mostly.This short arc discharge lamp is at inner mercury and the rare gas enclosed of discharge space, is used to the luminous ultraviolet light source from mercury.On the other hand, the xenon lamp that is used for projector or stage illumination, lighting etc. is that xenon-133 gas is enclosed in discharge space inside with high pressure, and at the short arc type high-pressure discharge lamp that is used to from the luminous visible light zone radiation high light of xenon.The high-pressure discharge lamp that below with this short arc discharge lamp or with the xenon lamp is representative is called short arc type high-pressure discharge lamp.
In this short arc type high-pressure discharge lamp,, be provided with the sealing of the paper tinsel seal construction that adopts the metal forming of using aluminium (Mo) to wait formations in order keep to enclose the discharge space that rare gas etc. is arranged airtightly.And, be provided with and be connected the discoid metallic plate of side end welding of the heart yearn of electrode in sealing portion, and on this metallic plate, be welded with above-mentioned metal forming.In general, the welding between this metallic plate and this metal forming utilizes resistance welding method to weld.But in the welding of this metallic plate and this heart yearn,, do not adopt the welding that utilizes resistance welding method, but adopt the method that these storerooms is connected through scolder because the thermal capacity of this material is big etc.Especially; In this short arc type high-pressure discharge lamp, select material from viewpoint, specifically with respect to the durability of high temperature; In being connected of this metallic plate that this heart yearn that tungsten (W) constitutes and molybdenum (Mo) constitute, use platinum (Pt) welds as scolder.
But, when using Pt, must this heart yearn and this metallic plate both sides be heated to the temperature till this Pt fusion as scolder this heart yearn of welding and this metallic plate.Therefore, the Mo that has been processed to metallic plate is because warm and by being recrystallized, reduced mechanical strength, the problem that can take place that this metallic plate splits etc.And this trend is along with the maximization to the uprising of the electric power of this short arc type high-pressure discharge lamp input, electrode shape, and becomes more remarkable.
So, replace in being connected of this heart yearn and this metallic plate use Pt, developed electron beam or laser radiation this heart yearn of fusion and this metallic plate method of directly welding partly of utilizing as scolder.As this technology, for example, known have a TOHKEMY 2007-115498 communique.According to this communique, a side end of this heart yearn is inserted the hole portion of the substantial middle portion that is formed at this metallic plate, for example, weld the surface of laser radiation in a side of this heart yearn and this metallic plate.Below, Fig. 6 shows the summary section of the structure of this known short arc type high-pressure discharge lamp of expression.
Fig. 6 (a) is the summary section of the known short arc type high-pressure discharge lamp 100 of expression, by the fluorescent tube portion 101 that forms discharge space; Protrude in the sealing pipe portion 102 at these fluorescent tube portion 101 two ends; And the pair of electrodes that is disposed at the inside of this fluorescent tube portion 101 relatively is that anode 103, negative electrode 104 constitute.And this sealing pipe portion 102 is made up of following: the heart yearn 105 that keeps this anode 103 or this negative electrode 104 at a side end; Metallic plate 106 with these heart yearn 105 welding; Be penetrated with this heart yearn 105 and be configured to roughly be connected to the cylindrical body 107 of the quartz glass system of this metallic plate 106; Across the column 108 of this metallic plate 106 with the quartz glass system of these cylindrical body 107 relative configurations; Dispose in intimate contact with the side of this column 108 and with the metal forming 109 of the Mo system of these metallic plate 106 welding; The 2nd metallic plate 110 with the welding of the other end of this metal forming 109; The outside lead rod 111 that is connected with the 2nd metallic plate 110 and derives to the outside from this sealing pipe portion 102; The outside lead that is penetrated with this outside lead rod 111 keeps with cylindrical shell 112; And this metal forming 109 that will dispose in intimate contact with the side of this column 108 is clamped the glass tubular body 102a of encapsulation with this column 108.
And what Fig. 6 (b) represented is to amplify this heart yearn 105 to use enlarged drawing with the explanation of the weld part of this metallic plate 106.In the figure, expression is disposed at the situation that this metallic plate 106 of the periphery of this heart yearn 105 welds through weld part 114,115 and this heart yearn 105.At this, this metallic plate 106 is discoid, and is provided with circular port portion 113 in its substantial middle portion.In this hole portion 113, be inserted with a side end of this heart yearn 105, from a side surface side of this metallic plate 106, for example irradiating laser welds this heart yearn 105 and the circumferencial direction of this metallic plate 106 along this hole portion 113.Through the irradiation of this laser, this heart yearn 105 forms the weld part 114,115 that engages with a part of fusion of this metallic plate 106.And when so this weld part 114,115 being formed on the two sides of this metallic plate 106, because the thickness of this metallic plate 106 produces the part of not fusion between this heart yearn 105 and this metallic plate 106, this is not melted part and forms short space 118.
Yet for this short arc type high-pressure discharge lamp 100, the market expectation has higher output.For corresponding these requirements, the electric power that this short arc type high-pressure discharge lamp 100 is imported uprises, and electrode shape also further maximizes.Thereupon, the stress that the vibration when lamp is carried etc. is followed is applied to this heart yearn 105 of this short arc type high-pressure discharge lamp 100 and the weld part 114,115 of this metallic plate 106, is created in the phenomenon that generates the crack on this weld part 114,115.Because the generation in this crack, when lighting lamp, the resistance of this weld part 114,115 uprises.So, high-current flow is crossed this weld part 114,115 that resistance uprises, and this weld part 114,115 is heating partly, by this weld part of unusual heating 114,115 fusion once again itself, the problem that this heart yearn 105 comes off from this metallic plate 106 takes place.And these weld part 114,115 peripheries also are heated, and then the vicious circle that uprises of resistance repeats, and the electric power of input is consumed as heat.Thus; For example will carry out permanent electric power control to the electric power of these short arc type high-pressure discharge lamp 100 inputs; Be used for then that luminous electric power has reduced as heat and the partial power that is consumed, the problem that lamp illumination reduces also can take place even light a lamp with identical input electric power in its result.
Patent documentation 1: TOHKEMY 2007-115498 communique
Summary of the invention
In view of the above problems; The problem that the present invention will solve provides a kind of short arc type high-pressure discharge lamp; In this short arc type high-pressure discharge lamp, when waiting the metallic plate that welds the heart yearn that electrode is remained in a side end and the other end of being located at this heart yearn, even produce the crack at this weld part through laser; Can not be created in that the resistance of this weld part uprises in lighting a lamp, the problem of local pyrexia, this heart yearn can not come off from this metallic plate yet.
Short arc type high-pressure discharge lamp of the present invention possesses: the fluorescent tube portion that forms discharge space; And the sealing pipe portion that protrudes in the two ends of this fluorescent tube portion, in this fluorescent tube portion, dispose pair of electrodes relatively, dispose in this sealing pipe portion: the glass tubular body that covers the outer surface of this sealing pipe portion; Be disposed at the heart yearn that keeps this electrode in this glass tubular body and at a side end; The 1st metallic plate with the welding of the end side of this heart yearn; Be penetrated with this heart yearn, with the cylindrical body of the relative configuration of the 1st metallic plate; Column across the 1st metallic plate and the relative configuration of this cylindrical body; Dispose in intimate contact with the side of this column, and a plurality of metal formings of a side end and the welding of the 1st metallic plate; The 2nd metallic plate with the welding of the other end of this metal forming; And be connected with the 2nd metallic plate; And the outside lead of deriving to the outside from this sealing pipe portion is excellent; It is characterized in that: above-mentioned the 1st metallic plate is provided with hole portion at central portion; And the end side of this heart yearn is inserted this hole portion, and the circumferencial direction along this hole portion on the circumferencial direction of this hole portion of a side surface of the 1st metallic plate and opposite side surface has the weld part with this heart yearn welding respectively; Between each weld part, the electroconductive member that tantalum (Ta) or molybdenum (Mo) constitute is disposed between the periphery of inboard and this heart yearn of this hole portion.And except this structure, above-mentioned electroconductive member is the member of paper tinsel shape or wire.
Even short arc type high-pressure discharge lamp of the present invention is when the crack takes place in the welding portion of this heart yearn and the 1st metallic plate vibration during owing to carrying etc.; Owing between the periphery of the inboard of being located at the hole portion on the 1st metallic plate and this heart yearn, dispose the electroconductive member that Ta or Mo constitute; This electroconductive member contacts the 1st metallic plate and this heart yearn both sides simultaneously; Thereby the resistance of this welding portion can not uprise, and can keep the resistance value of certain level.Consequently, can suppress this heart yearn that the local pyrexia of this weld part causes and come off from the 1st metallic plate, or the problem that reduces of the lamp illumination that power consumption produced that causes along with abnormal heating.And this electroconductive member is the member of paper tinsel shape or wire, and easy deformation, easy and simple to handle, and this member plastic deformation easily itself have the advantage of the contact that can improve this heart yearn and this metallic plate.
Description of drawings
Fig. 1 is the profile of the summary of expression short arc type high-pressure discharge lamp of the present invention.
Fig. 2 is illustrated in the key diagram that sandwiches the production order of metal forming between heart yearn of the present invention and the metallic plate.
Fig. 3 is the key diagram that the experimental technique of effect of the present invention is confirmed in the expression explanation.
Fig. 4 is the amplification profile of form of the weld part of expression heart yearn of the present invention and metallic plate.
Fig. 5 is the amplification profile of form of weld part of heart yearn and the metallic plate of other embodiment of expression.
Fig. 6 is the profile of the summary of the known short arc type high-pressure discharge lamp of expression.
Embodiment
The electroconductive member that short arc type high-pressure discharge lamp of the present invention constitutes Ta or Mo is configured in the mode that contact with this heart yearn and the 1st metallic plate both sides between the outer peripheral face of inboard and this heart yearn of hole portion of the central part that is formed at the 1st metallic plate; Thereby even making to be disposed to give prominence on the weld part of the heart yearn of the sealing pipe portion at the two ends of the fluorescent tube portion that forms discharge space and the 1st metallic plate, the crack takes place; The resistance value of weld part can not rise yet; The resistance value that can keep certain level, through being configured like this, the resistance value of this weld part can not rise to more than the certain level; Consequently; This weld part can not had and can suppress this heart yearn and come off from the 1st metallic plate by heating partly, or the effect of problem such as lamp illumination deterioration.
Fig. 1 representes the 1st embodiment of the present invention.The summary section of Fig. 1 (a) expression short arc type high-pressure discharge lamp of the present invention.This short arc type high-pressure discharge lamp 1 is by the fluorescent tube portion 11 that forms discharge space; Protrude in the sealing pipe portion 12 at the two ends of this fluorescent tube portion 11; And the pair of electrodes that is disposed at the inside of this fluorescent tube portion 11 relatively is that anode 13, negative electrode 14 constitute.And this sealing pipe portion 12 is by constituting with the lower part: the heart yearn 15 that keeps this anode 13 or this negative electrode 14 at a side end; With the 1st metallic plate 16 of this heart yearn 15 welding, be penetrated with this heart yearn 15 and be configured to roughly be connected to the cylindrical body 17 of the quartz glass system of the 1st metallic plate 16; Across the column 18 of the 1st metallic plate 16 with the quartz glass system of these cylindrical body 17 relative configurations; Dispose in intimate contact with the side of this column 18 and with the metal forming 19 of the Mo system of the 1st metallic plate 16 welding; The 2nd metallic plate 20 with the welding of the other end of this metal forming 19; The outside lead rod 21 that is connected with the 2nd metallic plate 20 and derives to the outside from this sealing pipe portion 12; The outside lead that is penetrated with this outside lead rod 21 keeps with cylindrical shell 22; And this metal forming 19 that will dispose in intimate contact with the side of this column 18 is clamped the glass tubular body 12a of encapsulation with this column 18.
Then, expression is used enlarged drawing with this heart yearn 15 of this short arc type high-pressure discharge lamp 1 shown in Fig. 1 (a) with the explanation of the weld part amplification of the 1st metallic plate 16 in Fig. 1 (b).The 1st metallic plate 16 that is configured in the periphery of this heart yearn 15 welds through weld part 24,25 and this heart yearn 15.At this, the 1st metallic plate 16 is discoid, and is provided with circular port portion 23 in its substantial middle portion.Be inserted with a side end of this heart yearn 15 in this hole portion 23, from a side surface side of the 1st metallic plate 16 irradiating laser for example, along circumferencial direction welding this heart yearn 15 and the 1st metallic plate 16 of this hole portion 23.Through the irradiation of this laser, form that this heart yearn 15 is melted with the part of the 1st metallic plate 16 and the weld part 24,25 that engages.And between the inner surface of this hole portion 23 of the outer peripheral face of this heart yearn 15 and the 1st metallic plate 16, on the part that this weld part 24,25 surrounds, metal forming 26 disposes with the 1st metallic plate 16 both sides with this heart yearn 15 contiguously.Thus, even on this weld part 24,25, produce crack etc., because this metal forming 26, this heart yearn 15 is electrically connected with the 1st metallic plate 16, has the advantage of the resistance value that can keep certain level.Consequently, can suppress this heart yearn 15 that these weld part 24,25 local pyrexias cause from the coming off of the 1st metallic plate 16, or the problem that reduces along with the lamp illumination of the power consumption due to the abnormal heating.
And in the present embodiment, the end nipple of having represented this heart yearn 15 is from situation about being positioned at the opposite side face side of the opposition side of a side surface that this heart yearn 15 is inserted the 1st metallic plate 16, but this mode can adopt variety of way.For example, the end of this heart yearn 15 is not outstanding from this opposite side face side, can be identical faces yet.And, also can adopt the diameter of this heart yearn 15 of a side of inserting the 1st metallic plate 16 tiny, and continuously in the stairstepping of a side chap of a side surface side of the 1st metallic plate 16.
Then, Fig. 2 is an example of the manufacture method of this heart yearn 15 shown in expression the 1st embodiment of the present invention and the 1st metallic plate 16 engaging portion.(a) of Fig. 2 each operation when (f) expression is made.(a) be this heart yearn 15, be provided with taper portion 31 at its front end.(b) be metal forming 32 in order to the periphery that covers this heart yearn 15.This metal forming 32 is for example made metal forming with Mo, and to be cut to thickness be 50 μ m, and width is 10mm, and length is 22mm.(c) expression is following hole portion 23 state before of being located at the 1st metallic plate 16 that inserts of state that this metal forming 32 is wound on the taper portion 31 of this heart yearn 15.(d) be the figure that the 1st metallic plate 16 state is afterwards inserted this heart yearn 15 in expression.In this stage, this metal forming 32 is at a side surface 33 of the 1st metallic plate 16, and has exposed portions serve 35 on each side on opposite side surface 34.(e) expression is along the circumferencial direction irradiating laser of the hole portion 23 that is located at the 1st metallic plate 16, the state that welds.(f) be the completion article that expression utilizes this heart yearn 15 of laser welding and the 1st metallic plate 16.Pass through said sequence; Between this hole portion 23 of the outer peripheral face of this heart yearn 15 shown in Fig. 1 (b) and the 1st metallic plate 16; In these weld part 24,25 area surrounded, at least a portion of the metal forming 26 that Mo constitutes is connected with the 1st metallic plate 16 both sides with this heart yearn 15 contiguously.And this exposed portions serve 35 comes off after laser radiation, or this exposed portions serve 35 is integrally fused, becomes the part of weld part 24,25.
Fig. 3 representes the method for the effect affirmation experiment of the 1st embodiment of the present invention.In order to apply vibration to this weld part 24,25 shown in the 1st embodiment of the present invention, simulation ground uses the sample stage 40 shown in Fig. 3 (a).That is the front end that is produced on this heart yearn 15 keeps the for example electrode of this anode 13, and is welded with the analogue test sample 41 of the 1st metallic plate 16 at the other end.In the metal sample stage 40 of the 1st metallic plate 16 that surrounds this analogue test sample 41, insert and keep this heart yearn 15, and fix.At this, the 44th, the cylindrical body of quartz glass system is inserted and is connected with this heart yearn 15.This sample stage 40 is set on the vibration rig 40a, and with acceleration 0.5G, vibration frequency 10～40Hz carried out vibration test 1 hour.And, as this analogue test sample 41, use heart yearn length to be 100mm, core line diameter is about φ 8mm, and the electrode that remains in front end utilizes external diameter to be φ 38mm, and length is the electrode (the about 300g of weight) of 45mm.
Then, use this analogue test sample 41 after 42 pairs of these vibration tests of resistance measurement device shown in Fig. 3 (b) to measure resistance, compare with resistance value before this vibration test.As this resistance measurement device 42, the heart yearn portion 15 so that keeper 43 keeps this analogue test sample 41 across the cylindrical body 44 of quartz glass system, keeps the peripheral part of the 1st metallic plate 16 with the 2nd keeper 45.Between keeper 43 and the 2nd keeper 45, be connected with the constant-current power supply 47 that maximum is output as 100A across shunt resistance 46.And, between this shunt resistance 46, be connected in parallel to potentiometer 48.Through this circuit, electric current flows through this heart yearn 15 from constant-current power supply 47, is determined at the voltage that the 1st metallic plate 16 and this heart yearn 15 are consumed.And,, the series circuit between the end of the periphery that tester 49 is contained in the 1st metallic plate 16 and this heart yearn 15 is measured the assembling resistance value as the circuit of other system.
This analogue test sample 41 and the known sample of relatively using have been prepared in order to test.Two samples all use core line diameter to be about φ 8mm, and the thickness of the 1st metallic plate is the sample of 2mm.The weld strength of the part of welding through laser radiation in two samples all is 5000N.Resistance value before the vibration test of this analogue test sample 41 is 0.02m Ω, and the resistance of (after vibrating 1 hour) does not change after this vibration test, still is 0.02m Ω.This analogue test sample 41 is further carried out vibration test (after vibrating again 49 hours) afterwards, measure resistance with same procedure, but constant before resistance and the vibration test, still be 0.02m Ω.On the other hand, as comparative sample 50, the sample (known article) of establishing electroconductive members such as metal forming between this heart yearn 15 and the 1st metallic plate 16, not to be situated between is measured the resistance value before and after the vibration test.In this comparative sample 50, the resistance value before the vibration test also is 0.02m Ω.But the resistance value of (vibrating after 1 hour) after this vibration test rises to 2m Ω.And this analogue test sample 41 and this comparative sample 50 are because vibration test all produces the crack near this weld part.
Fig. 4 is illustrated in (a) in (d) with the different shape of this heart yearn 15 that sandwiches this metal forming 26 of the present invention and the taper portion 31 of the 1st metallic plate 16.Among each figure, the form before the right side of dotted line is represented to weld, the form after the left side of dotted line is represented to weld.(a) be the example that is provided with taper portion 31 at this heart yearn 15.Thus, has between this heart yearn 15 and the 1st metallic plate 16 advantage that this metal forming 26 that is sandwiched weld part 24,25 positively contacts with the 1st metallic plate 16 both sides with this heart yearn 15.(b) be to be provided with this taper portion 31 in the 1st metallic plate 16 sides.Thus; Except having between this heart yearn 15 and the 1st metallic plate 16; This metal forming 26 that sandwiches weld part 24,25 positively with this heart yearn 15 with beyond the advantage that the 1st metallic plate 16 both sides contact; When the hole portion 23 of the 1st metallic plate 16 is located in processing, can form this taper portion 31, thereby also have the advantage that does not need unnecessary operation.(c) be the example that all is provided with taper portion 31 this heart yearn 15 and the 1st metallic plate 16 both sides.Thus; Except having between this heart yearn 15 and the 1st metallic plate 16; This metal forming 26 that sandwiches weld part 24,25 positively with this heart yearn 15 with beyond the advantage that the 1st metallic plate 16 both sides contact, also have and can guarantee bigger contact area, can keep the advantage of lower resistance.(d) be the example that taper portion 31 all is not set these heart yearn the 15, the 1st metallic plate 16 both sides.In this case, the thickness or the number of the metal forming 26 that sandwiches through adjustment also can be guaranteed sufficient resistance.And, with (a) to (c) likewise, in Fig. 4 (d), 15 the expression these heart yearns, 16 the expression the 1st metallic plate, 24,25 the expression these weld parts, 26 the expression these metal formings.
In Fig. 5, as other embodiment of the present invention, expression sandwiches the shape of the metal forming 26 between this heart yearn 15 shown in Fig. 1 (b) and the 1st metallic plate 16.Fig. 5 (a) is that the part of the part of surrounding at these hole portion 23 inner surfaces of this heart yearn the 15, the 1st metallic plate 16 and by this weld part 24,25 is provided with metal forming 51, residual the situation of short space 52.In this case,, then also can guarantee the resistance value of certain level, can avoid problems such as these weld part 24,25 abnormal heatings if the part of this metal forming 51 contacts with the 1st metallic plate 16 both sides with this heart yearn 15.Fig. 5 (b) is that expression replaces this metal forming 51 and the metal wire 53 that Mo or Ta constitute is wound on the situation of this heart yearn 15.In this case, if at least a portion of this metallic plate 53 contacts with the 1st metallic plate 16 both sides with this heart yearn 15, then can obtain the effect same with the situation of metal forming 51.What Fig. 5 (c) represented is the profile of watching from the axial surface that is orthogonal to this heart yearn 15.For this heart yearn 15, this metal forming 51 is not the periphery integral body that covers this heart yearn 15, but is configured to roughly C word shape, between this heart yearn 15 and the 1st metallic plate 16, is formed with short space 52.Even this metal forming 51 is configured to this roughly C word shape; Form under the situation of short space 52; If this metal forming 51 contacts with the 1st metallic plate 16 both sides with this heart yearn 15, then also can guarantee the resistance value of certain level, have the advantage that can avoid problems such as weld part abnormal heating.
Claims (2)
1. short arc type high-pressure discharge lamp possesses:
Form the fluorescent tube portion of discharge space; And
Protrude in the sealing pipe portion at the two ends of this fluorescent tube portion,
In this fluorescent tube portion, dispose pair of electrodes relatively,
Dispose in this sealing pipe portion:
Cover the glass tubular body of the outer surface of this sealing pipe portion;
Be disposed at the heart yearn that keeps this electrode in this glass tubular body and at a side end;
The 1st metallic plate with the welding of the end side of this heart yearn;
Be penetrated with this heart yearn, with the cylindrical body of the relative configuration of the 1st metallic plate;
Column across the 1st metallic plate and the relative configuration of this cylindrical body;
Dispose in intimate contact with the side of this column, and a plurality of metal formings of a side end and the welding of the 1st metallic plate;
The 2nd metallic plate with the welding of the other end of this metal forming; And
Be connected with the 2nd metallic plate, and, it is characterized in that from the outside lead rod that this sealing pipe portion derives to the outside:
Above-mentioned the 1st metallic plate is provided with hole portion at central portion, and this hole portion of the end side of this heart yearn insertion,
Along the circumferencial direction of this hole portion on the circumferencial direction of this hole portion of a side surface of the 1st metallic plate and opposite side surface, have the weld part with this heart yearn welding respectively,
Between each weld part, the electroconductive member that tantalum (Ta) or molybdenum (Mo) constitute is disposed between the periphery of inboard and this heart yearn of this hole portion, and above-mentioned electroconductive member contacts the 1st metallic plate and heart yearn both sides simultaneously.
2. short arc type high-pressure discharge lamp according to claim 1 is characterized in that, above-mentioned electroconductive member is the member of paper tinsel shape or wire.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008052171 | 2008-03-03 | ||
| JP2008052171A JP4548496B2 (en) | 2008-03-03 | 2008-03-03 | Short arc type high pressure discharge lamp |
| JP2008-052171 | 2008-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101527250A CN101527250A (en) | 2009-09-09 |
| CN101527250B true CN101527250B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101182595A Expired - Fee Related CN101527250B (en) | 2008-03-03 | 2009-03-03 | Short arc type high voltage discharge lamp |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4548496B2 (en) |
| KR (1) | KR101044551B1 (en) |
| CN (1) | CN101527250B (en) |
| DE (1) | DE102009009493B4 (en) |
| TW (1) | TW200939289A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5218582B2 (en) * | 2011-03-08 | 2013-06-26 | ウシオ電機株式会社 | Discharge lamp |
| JP7175228B2 (en) * | 2019-03-27 | 2022-11-18 | 株式会社オーク製作所 | Discharge lamp and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3166526B2 (en) * | 1994-12-22 | 2001-05-14 | ウシオ電機株式会社 | Short arc discharge lamp |
| CN1661767A (en) * | 2004-02-27 | 2005-08-31 | 优志旺电机株式会社 | High pressure discharge lamp |
| CN2888641Y (en) * | 2005-11-10 | 2007-04-11 | 复旦大学 | Electric arc tube for porcelain metal halide lamp |
| CN1953137A (en) * | 2005-10-18 | 2007-04-25 | 株式会社Orc制作所 | Sealing structure of discharge lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636395A (en) * | 1970-02-19 | 1972-01-18 | Sperry Rand Corp | Light source |
| JPS55102147A (en) * | 1979-01-31 | 1980-08-05 | Toshiba Corp | Bulb |
| JPH0380666A (en) * | 1989-08-23 | 1991-04-05 | Fuji Xerox Co Ltd | Picture reader |
| JPH0380666U (en) * | 1989-12-05 | 1991-08-19 | ||
| JPH10334789A (en) * | 1997-05-29 | 1998-12-18 | Toshiba Lighting & Technol Corp | Vessel, luminaire, and manufacture of vessel mount structure |
| JP3475815B2 (en) * | 1998-11-10 | 2003-12-10 | ウシオ電機株式会社 | Short arc discharge lamp |
| DE20005531U1 (en) * | 2000-03-29 | 2000-06-21 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Short arc lamp |
| JP3858718B2 (en) * | 2002-02-13 | 2006-12-20 | ウシオ電機株式会社 | Short arc discharge lamp |
| JP4821257B2 (en) * | 2005-10-20 | 2011-11-24 | ウシオ電機株式会社 | Short arc type discharge lamp |
-
2008
- 2008-03-03 JP JP2008052171A patent/JP4548496B2/en not_active Expired - Fee Related
- 2008-12-11 TW TW097148234A patent/TW200939289A/en not_active IP Right Cessation
-
2009
- 2009-01-19 KR KR1020090004162A patent/KR101044551B1/en not_active IP Right Cessation
- 2009-02-18 DE DE102009009493A patent/DE102009009493B4/en not_active Expired - Fee Related
- 2009-03-03 CN CN2009101182595A patent/CN101527250B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3166526B2 (en) * | 1994-12-22 | 2001-05-14 | ウシオ電機株式会社 | Short arc discharge lamp |
| CN1661767A (en) * | 2004-02-27 | 2005-08-31 | 优志旺电机株式会社 | High pressure discharge lamp |
| CN1953137A (en) * | 2005-10-18 | 2007-04-25 | 株式会社Orc制作所 | Sealing structure of discharge lamp |
| CN2888641Y (en) * | 2005-11-10 | 2007-04-11 | 复旦大学 | Electric arc tube for porcelain metal halide lamp |
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| Title |
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| JP昭55-102147A 1980.08.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009009493B4 (en) | 2012-03-22 |
| DE102009009493A1 (en) | 2009-09-10 |
| CN101527250A (en) | 2009-09-09 |
| KR20090094741A (en) | 2009-09-08 |
| TWI350553B (en) | 2011-10-11 |
| KR101044551B1 (en) | 2011-06-27 |
| JP2009211879A (en) | 2009-09-17 |
| JP4548496B2 (en) | 2010-09-22 |
| TW200939289A (en) | 2009-09-16 |
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