CN1275287C - Short arc discharge lamp and light source equipment - Google Patents
Short arc discharge lamp and light source equipment Download PDFInfo
- Publication number
- CN1275287C CN1275287C CNB031212336A CN03121233A CN1275287C CN 1275287 C CN1275287 C CN 1275287C CN B031212336 A CNB031212336 A CN B031212336A CN 03121233 A CN03121233 A CN 03121233A CN 1275287 C CN1275287 C CN 1275287C
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- Prior art keywords
- metal cap
- discharge lamp
- mentioned
- short arc
- arc discharge
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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
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/04—Flower-pot saucers
- A01G9/045—Trays for receiving multiple pots
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/021—Pots formed in one piece; Materials used therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0297—Grids for supporting several receptacles
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An electric discharge lamp without shortage of cooling resulting from poor positioning of the attachment direction of the electric discharge lamp and a fixed material included in a metal cap part, allowing no un-switching on the light of electric discharge lamp, breakage, and burst, is provided. Also, a light source equipment including the electric discharge lamp attached to a luminaire without increase in the cooling capacity of the luminaire accompanying a high light-utilization of the electric discharge lamp, allowing scaling-down or small electric power of the equipment is provided. A short are electric discharge lamp 1 comprises: metal cap maintenance part 14 provided for an attachment to the end portion of both metal caps 11 of the electric discharge lamp 1; a positioning engagement part provided in at least one of the circumferential position of both metal cap maintenance parts 14; and pluralities of opening holes 11a and 11b provided in the position which is un-countering on the side face of the both metal caps 11.
Description
Technical field
The light source that the present invention relates to a kind of short arc discharge lamp and use this short arc discharge lamp, this short arc discharge lamp can carry out photo-irradiation treatment on such as the such substrate of semiconductor wafer, liquid crystal panel and printed wiring board.
Background technology
In conventional short arc discharge lamp (calling discharge lamp in the following text), for discharge lamp being attached on the light fixture of light source, being fixed to the fixing metal on the sealed tube at discharge lamp luminous tube two ends or being electrically connected metal (calling metal cap in the following text) by immobilization material at present and adopt cylindrical shape to form.And, be provided with cylindrical metal cap maintaining part (protuberance) in the end of metal cap, and recess is set in light fixture, thereby determine the location.It is in order not impose on tension force when discharge lamp is attached on the light fixture on the lead-in wire and light fixture connecting portion that come out from discharge lamp that this device carries out work.When the tension force of lead-in wire and light fixture connecting portion became big, stress was applied in to discharge lamp, and in discharge lamp crackle takes place.This guiding discharge lamp do not work lamp and break accident.
And, being provided with connecting portion (calling metal solder portion in the following text) in the metal cap inside of discharge lamp, this connecting portion is by connecting elements and the metal forming of drawing from the electrode of discharge lamp inside with from the electric importing wire-bonded of outside.And, metal forming adopts this mode to seal, that is: form hermetically-sealed construction between the outer surface of the sealed tube inner surface that is provided with at discharge lamp luminous tube two ends and being used for quartz system support tube that the sealed tube inboard that is provided with at discharge lamp luminous tube two ends and electrode etc. are supported, and make the end face of metal forming be exposed to the atmosphere of metal cap inside.And, owing in discharge lamp light, generate heat, thereby the temperature of metal cap part reaches about 300～400 ℃.Therefore, in bright lamp, if metal cap is partly cooled off, then metal solder portion meeting oxidation, the perhaps end face of metal forming meeting oxidation, and crackle can take place in the quartz system support tube of sealed tube.As a result, this can become the do not work reason of lamp and break accident of discharge lamp.
Therefore, conventional light fixture comprises nozzle, and this nozzle is by providing cooling air from its inner ejection cooling air, to reduce the temperature of interior metal weld part or metal forming.
And, a kind of being used for adopts by this way to the method that directly cool off metal solder portion or metal forming end, that is: be provided with two perforates that separate at interval with 180 degree in the metal cap side vertical with the direction of principal axis of discharge lamp, perhaps be provided with four perforates that separate at interval with 90 degree, thereby air or other gas are imported metal cap inside from these perforates.
Yet above-mentioned metal cap surface cool method proposes a problem and is, owing to fill the immobilization material that is used for metal cap is fixed on the discharge lamp body in that metal cap is inner, thereby the inner cooling effectiveness of metal cap bad than anticipation, and it is not enough that cooling takes place.
And, above-mentionedly, the cooling means that perforate cools off compares with metal cap surface cool method by being set in above-mentioned metal cap side, though cooling effectiveness is good, in the time of in discharge lamp is installed in light fixture, need accurately be arranged on the cooling air nozzle in the perforate of metal cap side.
Yet, owing in conventional discharge lamp, do not have detent mechanism, thereby the aligning of nozzle and perforate is fixed against the installing workman.And metal cap or metal cap maintaining part as for above-mentioned employing cylindrical shape formation, the section configuration that intersects vertically owing to the direction of principal axis at discharge lamp is circle, thereby can't finish the location that discharge lamp is installed direction, that is: center on the location of the axle direction of rotation of discharge lamp.Therefore, the position deviation of nozzle and perforate takes place, and the cooling deficiency of metal cap takes place.And owing to the perforate that is provided with for cooling is adopted opposed mode and is provided with, thereby cooling effectiveness is bad, can not obtain abundant cooling effect.For this reason, the possibility that has guiding discharge lamp generation crackle, do not work lamp and break accident.
And, even use said method, the also situation that can not avoid light fixture cool metal capacity to increase with the discharge lamp caloric value.As a result, relating to the maximization of light fixture and the increase of electrification aspect the cool metal capacity increase of this light fixture.
Summary of the invention
The present invention makes in view of the above problems, the purpose of this invention is to provide a kind of discharge lamp, this discharge lamp can not work lamp, breakage and break.And, the objective of the invention is also to provide a kind of light source, this light source is attached to discharge lamp on the light fixture, and is accompanied by the height light usability of discharge lamp, and the cool metal capacity of light fixture can not increase, and this can realize the miniaturization and the little electrification of equipment.
In order to address the above problem, a kind of short arc discharge lamp has been proposed according to an aspect of the present invention, this short arc discharge lamp comprises: the anode and the negative electrode that are arranged in luminous tube inside in opposed mode; Two ends at luminous tube are provided with sealed tube separately; Be respectively fixed to the metal cap of each the sealed tube outside in two sealed tubes by immobilization material, short arc discharge lamp is mounted to the enterprising enforcement of light fixture and uses; Metal cap comprises: the metal cap maintaining part, and it is separately positioned on the end of two each metal caps in the metal cap, so that be attached on the light fixture; The location engaging piece, its be arranged on two at least one sides in the metal cap maintaining part around, be used to specify the position of installing; And a plurality of perforates, it is arranged on non-opposed position, two metal cap sides separately.
In the above-described configuration, if discharge lamp is attached on the light fixture, then be used to specify the fixed position by being provided with the location engaging piece around at least one side in the metal cap maintaining part of anode and negative electrode, make the installing direction of discharge lamp or bright lamp posture become with light fixture folk prescription to.And a plurality of perforates that are provided with in the metal cap side of discharge lamp adopt non-opposed mode to be provided with.Therefore, prolong in the residence time of the inner cooling air that imports of metal cap.
In order to address the above problem, a kind of short arc discharge lamp has been proposed according to a further aspect in the invention, this short arc discharge lamp has perforate, imports two perforates using and derive usefulness as cooling air.
In the above-described configuration, if the quantity of the non-opposed perforate that is provided with in the metal cap side is two, then the longest in the residence time of the inner cooling air that imports of metal cap.
In order to address the above problem, a kind of short arc discharge lamp has been proposed according to another aspect of the invention, this short arc discharge lamp comprises the location engaging piece, it is determined on the fixed position by unique, as protuberance or the recess on the side face of metal cap maintaining part.
Utilize above-mentioned formation, when discharge lamp installing (installation) was to light fixture, the installing directional precision of discharge lamp or bright lamp posture precision increased.
In order to address the above problem, a kind of light source with light fixture has been proposed in accordance with a further aspect of the present invention, this light fixture comprises short arc discharge lamp and the air feeder that is attached on it; This short arc discharge lamp has: the anode and the negative electrode that are arranged in luminous tube inside in opposed mode, the sealed tube that is provided with separately at the two ends of luminous tube, and the metal cap that is respectively fixed to each the sealed tube outside in two sealed tubes by immobilization material, this metal cap comprises: the metal cap maintaining part, it is separately positioned on the end of two each metal caps in the metal cap, so that short arc discharge lamp is attached on the light fixture, the location engaging piece, its be arranged on two at least one sides in the metal cap maintaining part around, be used to specify the position of installing, and a plurality of perforates, it is arranged on non-opposed position, two metal cap sides separately, light fixture has the metal cap fixed retainer, and it has recess, and this recess can mesh with at least one side in the metal cap maintaining part; And air feeder is arranged on the corresponding position of perforate with the metal cap of short arc discharge lamp, and this short arc discharge lamp is fixed on this metal cap fixed retainer.
In the above-described configuration, by the recess of metal cap fixed retainer is made can with the shape of the metal cap maintaining part of discharge lamp engagement, can to make the installing direction of discharge lamp and bright lamp posture be folk prescription to.And, by with the corresponding position of perforate air feeder being set with the air importing, the air of the air feeder that is provided with on light fixture is imported with the air importing of perforate and the discharge lamp metal cap location reproducibility with perforate improve, and both position deviations can not take place.
Description of drawings
Fig. 1 is the sectional drawing of wanting portion that discharge lamp of the present invention is shown.
Fig. 2 is the front view of wanting portion that the light source that comprises the light fixture that discharge lamp of the present invention is housed is shown.
Fig. 3 is the perspective view that the metal cap of discharge lamp of the present invention is shown.
Fig. 4 A is the front view that the metal cap fixed retainer of light fixture is shown, and Fig. 4 B is the sectional drawing of being got along the C-C line of Fig. 4 A.
Fig. 5 A is the sectional drawing of being got along the A-A line of Fig. 2, and Fig. 5 B is the sectional drawing of being got along the B-B line of Fig. 2, and Fig. 5 C is the sectional drawing of other positions relation that the air feeder of Fig. 5 A is shown.
Fig. 6 illustrates the figure that the metal cap internal temperature changes.
Fig. 7 shows the section configuration of metal cap maintaining part of the negative electrode of discharge lamp A1～A9.
Fig. 8 shows the direction of principal axis cross section orthogonal shape with the discharge lamp of metal cap.
Embodiment
Below will be with reference to the accompanying drawings, one embodiment of the present of invention are described.Fig. 1 is the sectional drawing of wanting portion that discharge lamp is shown, Fig. 2 is the front view of wanting portion that the light source that comprises the light fixture that discharge lamp is housed is shown, Fig. 3 is the perspective view that the metal cap of discharge lamp is shown, Fig. 4 A is the front view that the metal cap fixed retainer of light fixture is shown, Fig. 4 B is the sectional drawing of being got along the C-C line of Fig. 4 A, Fig. 5 A is the sectional drawing of being got along the A-A line of Fig. 2, Fig. 5 B is the sectional drawing of being got along the B-B line of Fig. 2, Fig. 5 C is the sectional drawing of other positions relation that the air feeder of Fig. 5 A is shown, and Fig. 6 illustrates the figure that the metal cap internal temperature changes.
As shown in Figure 1, discharge lamp 1 comprises anode (not shown) and negative electrode 3, and it adopts opposed mode to arrange, and encloses the mercury of scheduled volume and the not active gases of preset air pressure in discharge lamp 1.And cylindrical shape sealed tube 4 is formed on the two ends of luminous tube 2.
In cathode side sealed tube 4, enclose: electrode lead rod 5, its base end side with negative electrode 3 is connected; Pearl pipe 6, its support electrode lead rod 5; And connecting elements 7, it is supported on the rear end side of electrode lead rod 5 in engageable mode.And, in sealed tube 4, also enclose: metal forming 8, it is by constituting as the molybdenum of a plurality of lamp sealings that contact with the rear end side of this connecting elements 7 with metal; Pearl rod 9, it is made of the quartz glass that supports these metal forming 8 inboards; And outside lead installing department 10, it is supported on the rear side of pearl rod 9 in engageable mode.
As shown in figures 1 and 3, metal cap 11 is arranged in the outside of sealed tube 4 ends, and the inside that outside lead 12 inserts metal cap 11 is so that be connected with outside lead installing department 10.And at the metal cap 11 inner immobilization materials 13 of filling, like this, metal cap 11 can be fixed on the end of sealed tube 4 by immobilization material 13.And, be provided with metal cap maintaining part 14 in an end of metal cap 11, be used for discharge lamp 1 is attached to following fixation side light fixture (not shown).
Around this metal cap maintaining part 14, be provided with location engaging piece 14b, be used to specify installation position.In Fig. 3, location engaging piece 14b is made up of the side cut planar portions, and these side cut planar portions are to obtain by the one side that cuts cylindrical metal cap maintaining part 14.Yet, do not think to be subject to these shapes.For example, in Fig. 7, the section configuration of the metal cap maintaining part 14 that the direction of principal axis at discharge lamp is intersected vertically is described.In A2～A9, an example of the section configuration of metal cap maintaining part 14 of the present invention is described.Yet so long as a kind of shape that can carry out appointment to the installation position of discharge lamp 1 on following light fixture, the shape of any kind of all can satisfy so.And this section configuration is the shape of unique decision on installation position.That is to say, shown in the A3 of Fig. 7, require this section configuration to be at least a asymmetrical shape in up and down asymmetrical shape or the left and right sides asymmetrical shape, asymmetrical shape is to dig up and down according to the center line X of section so that the arbitrary face in the two sides can be not overlapping and make when section configuration up and down, and left and right sides asymmetrical shape is to dig when about the center line Y of section configuration according to section so that the arbitrary face in the two sides can be not overlapping and make.In other words, the axle Z of the discharge lamp of Fig. 3 is set at symmetry axis, and carries out the rotation of predetermined angular around this.Then, requiring this section configuration is asymmetric rotation shape, so that the shape before and after the rotation can be not overlapping.And location engaging piece 14b is well-determined installing department on installation position preferably, as the protuberance on the side face of metal cap maintaining part 14 or the recess (A3 of Fig. 7～A9).And metal cap maintaining part 14 meshes (referring to Fig. 3 and Fig. 4) with the recess 27 of the metal cap fixed retainer 26 of light fixture 21.
Anode-side sealed tube (not shown) also adopts the structure identical with cathode side sealed tube 4 to constitute.And, above-mentioned location engaging piece 14b be arranged at least one side in the metal cap maintaining part of negative electrode or anode around.When location engaging piece 14b is arranged on the two poles of the earth of negative electrode and anode, can make different shape mutually so that the bright lamp posture of discharge lamp be folk prescription to.
And, as shown in figures 1 and 3, in the side of metal cap 11, a plurality of perforate 11a with 11b is arranged on perforate 11a and 11b is non-opposed position, so that metal cap 11 coolings that temperature raises along with the heating in the discharge lamp light.At least one side among perforate 11a and the 11b is that air imports and use perforate 11a, another perforate to be arranged on this air to import the non-opposed position with perforate 11a, to obtain air derivation perforate 11b.In addition, air being set imports with perforate 11a or air derivation just enough with at least one side among the perforate 11b.Yet, the also not special obstruction of a plurality of perforates is set.And cooling air is provided for this air importing perforate 11a from the air feeder of following light fixture, and discharges cooling air by deriving with perforate 11b from air, and metal cap 11 is cooled off.
As for the quantity of these perforates, non-opposed layout, size and shape,, then it is not done special restriction if metal cap is fully cooled off.In Fig. 8, the direction of principal axis cross section orthogonal shape with the discharge lamp of metal cap is described, and in B4～B6, the perforate quantity and non-opposed layout one example of metal cap of the present invention is described.Do not think to be subject to this layout, but the form (B5 of Fig. 8) with two perforates is preferred that wherein, the cooling air residence time of metal cap inside is the longest, thereby obtains good cooling effectiveness.And,, do not have problems having the perforate of varying number, non-opposed layout, size and vpg connection as for the perforate of the metal cap 11 of anode (not shown) and negative electrode.
And, between the sealed tube 4 of metal cap 11 and discharge lamp 1, adopt this mode to fill immobilization material 13, that is: a plurality of perforate 11a and the 11b that are arranged on metal cap 11 sides can not stopped up.As for the material of immobilization material 13, good if this immobilization material 13 shows aspect bond strength and air-tightness, even and at high temperature also can deterioration, then it is not done special restriction.
In above-mentioned discharge lamp 1, location engaging piece 14b is arranged to make the metal cap maintaining part 14 of discharge lamp 1 can specify installation position, and, by being provided with at the well-determined installing department of installation position (location engaging piece 14b), as protuberance or the recess on the side face of metal cap maintaining part 14, and the section configuration that makes this metal cap maintaining part is at least a asymmetric (asymmetric rotation) shape in asymmetrical shape or the left and right sides asymmetrical shape up and down, when discharge lamp 1 is attached on the following light fixture, the installing direction that can make discharge lamp 1 be folk prescription to, and the location reproducibility that the air that can make the air feeder that is provided with and discharge lamp metal cap 11 in light fixture imports with perforate 11a improves, and both position deviations can not take place.As a result, make cooling air effectively import the air importing and use perforate 11a, and the cooling effectiveness of metal cap 11 inside is improved.
And, by being arranged on air with perforate 11b, the air derivation imports non-opposed position with perforate 11a, and two perforates are set, the cooling air that can make importing is in metal cap 11 inner fully convection current (cooling air of importing prolonged in the residence time of metal cap inside), and can fully absorb heat and heat extraction.This helps to improve the cooling effectiveness of metal cap 11 inside.
And immobilization material 13 can not stop up perforate 11a and 11b, thereby can not hinder the importing and the derivation of cooling air.Therefore, the cooling flow velocity that enters metal cap 11 can not reduce.And immobilization material 13 can not resemble the effect of playing insulation material the conventional discharge lamp.As a result, the cooling effectiveness of metal cap 11 inside is improved.
Therefore, the cooling effectiveness of metal cap 11 inside is improved, make the cooling deficiency can not take place, thereby can not take place discharge lamp 1 the lamp that do not work, breakage, break or short life.And, by being provided with at the well-determined installing department of installation position (location engaging piece 14b), as protuberance or the recess on the side face of metal cap maintaining part 14, and the section configuration that makes this metal cap maintaining part 14 is at least a asymmetric (asymmetric rotation) shape in asymmetrical shape or the left and right sides asymmetrical shape up and down, when discharge lamp 1 is attached on the light fixture, also can prevent the installing of stop polarity mistake.This polarity mistake installing meeting causes the superfluous consumption of cathode point portion immediately behind bright lamp, the result can shorten the life-span of discharge lamp 1.
Below, as shown in Figure 2, light source 20 is made of the light fixture 21 of discharge lamp 1 and this discharge lamp 1 of installing.Light fixture 21 uses decorating plate 22,23 and 24 to keep discharge lamp 1, and uses the metal cap fixed retainer 26 that is provided with in discharge lamp installing device 25 bottoms to fix discharge lamp 1.
At least one side in the metal cap maintaining part 14 of the male or female by making discharge lamp 1 and 27 engagements of the recess of metal cap fixed retainer 26 are carried out this fixing.More particularly, make in well-determined protuberance or the installing department of recess and recess 27 engagements of metal cap fixed retainer 26 that are used as on metal cap maintaining part 14 side faces of installation position.And mesh form is mated condition preferably, and as shown in Figure 3 and Figure 4, the preferably same shape of the section configuration of the recess 27 of metal cap maintaining part 14 and metal cap fixed retainer 26.And, in Fig. 3 and Fig. 4, the jut 27a of the recess 27 that forms in metal cap fixed retainer 26 cooperates with the mating groove 14a that periphery in metal cap maintaining part 14 is provided with, and the fixed component 28 of use metal cap fixed retainer 26 fixes the location engaging piece 14b of metal cap maintaining part 14.And, use screw to fix the mating groove 14a of metal cap maintaining part 14 from the spring catch 27b and the hole 27c of metal cap fixed retainer 26.
And as Fig. 2 and shown in Figure 5, light fixture 21 comprises air nozzle 29a and 30a, as the air feeder that is used to provide air, so that the metal cap 11 of the negative electrode of discharge lamp 1 and anode and 11 coolings.And, the air that each point of air nozzle 29a and 30a is set at side in the metal cap 11 of negative electrode and anode and 11 forms is imported the corresponding position with perforate 11a, and sprays cooling air.Like this, cooling air is imported into metal cap 11, and comes cool metal cap 11 from metal cap inside.The air that is provided with according to the side in the metal cap 11 of negative electrode and anode and 11 imports with each of perforate 11a and arrange that the position relation of the horizontal direction of air nozzle 29a and 30a can move on the direction of rotation that with discharge lamp 1 is the center.In Fig. 5 C, the example that the position of moving 180 air nozzle 29a that spend and 30a is concerned is described.
Shown in Fig. 5 A and Fig. 5 B, consider cooling effectiveness, the form A from the outer surface that is arranged on metal cap 11 or be inserted into each the nozzle tip position of suitable selection air nozzle 29a and 30a either party of form (b) of metal cap 11 inside.Equally, consider cooling effectiveness,, perhaps be used for by air being ejected on the metal cap surface and making the suitable selection cooling means of method of metal cap 11 coolings from the metal cap outer surface from being used for being provided with respectively the method for a plurality of air nozzle 29a and 30a.And the cooling flow of cooling air preferably is set at 50～300mL/min, and can use other refrigerating gases, and does not use cooling air.
And light fixture 21 comprises in the bottom of decorating plate 23: speculum 31 is used for going up the irradiates light of collecting discharge lamp 1 at workpiece (for example semiconductor wafer); Cooling device 32 is used to make this speculum 31 coolings; And shield 33, be used to cover the heat of speculum 31; Deng.
In above-mentioned light source 20, with the recess 27 of the metal cap fixed retainer 26 of light fixture 21 make can with the shape of metal cap maintaining part 14 engagements of discharge lamp 1, thereby the installing direction that makes discharge lamp 1 be folk prescription to, and the location reproducibility that the air as the metal cap 11 of the air nozzle 29a of the air feeder that comprises in light fixture 21 and 30a and discharge lamp 1 and 11 is imported with perforate 11a and 11a improves.And, both position deviations can not take place, and the cooling effectiveness of metal cap 11 and 11 inside is improved.And,, can keep the cooling effectiveness of metal cap 11 and 11 inside by air nozzle 29a and 30a are formed on and air importing usefulness perforate 11a and the corresponding position of 11a.
As mentioned above, owing to can improve and keep the cooling effectiveness of metal cap 11 and 11 inside, thereby be accompanied by the height light usability of discharge lamp 1, the cooling capacity of light fixture 21 can not increase but can reduce, thereby can realize the miniaturization and the little electrification of equipment.And, the bright lamp posture of discharge lamp 1 also be folk prescription to, and also can prevent because the short life of the discharge lamp 1 that the installing of polarity mistake causes.
[embodiment]
Below will use embodiments of the invention to be described further.Subsidiary one what carry is to the invention is not restricted to present embodiment.The discharge lamp that the present invention uses is a kind of short arc discharge lamp, luminous tube external diameter Φ 82mm, length of illumination 7mm, enclose amount of mercury 20mg/cc, electric rating 5KW, discharge voltage 50V, discharging current 100A, bright lamp posture be negative electrode last, the metal cap maintaining part of light fixture is located at negative electrode.
(first embodiment)
The position reproduction of the discharge lamp installing direction in order to be attached on the light fixture to discharge lamp is assessed, and has prepared to have the discharge lamp A1～A9 of the metal cap maintaining part of nine kinds of difform negative electrodes.Fig. 7 shows the section configuration of metal cap maintaining part of the negative electrode of discharge lamp A1～A9.In addition, discharge lamp A1 is conventional lamp, and discharge lamp A2～A9 is a lamp of the present invention.
The metal cap maintaining part of discharge lamp A1 is made shape with the location engaging piece that is used to specify the discharge lamp installation position.Discharge lamp A2～A9 is the shape with the location engaging piece that is used to specify installation position.And in the metal cap side, at the height and position of the same size in distance metal cap end, the air that cooling usefulness only is set at a place imports uses perforate.
Assess in the following ways, that is: prepared the light fixture corresponding respectively with the shape of the metal cap maintaining part of discharge lamp A1～A9, and discharge lamp is attached on the light fixture for several times, import with perforate with the air of checking the metal cap side and whether fully reproduce consistent (calling position reproduction in the following text) with the position of the air nozzle of light fixture.Fig. 7 shows assessment result.
Assessment result shows, checking that air imports with perforate and air nozzle position, and in direction of principal axis rotating electric-discharging lamp, owing to adopt range estimation that discharge lamp is attached on the light fixture, thereby check out the some position deviations of generation in discharge lamp A1 (conventional lamp), and can not obtain position reproduction.
Discharge lamp A2 (lamp of the present invention) is provided with two location engaging pieces (side cut portion) at the upper and lower sides of metal cap maintaining part, because the size of (the side cut portion) of location engaging piece is equal, thereby has two kinds of installation positions (form).Yet, when installing discharge lamp etc., import with perforate and air nozzle position by checking air, check out to obtain position reproduction.
Discharge lamp A3～A9 (lamp of the present invention) comprising: the location engaging piece, its be arranged on the metal cap maintaining part around; And installing department (location engaging piece), it is determined that by unique as protuberance and the recess on the side face of metal cap maintaining part, and the section configuration of metal cap maintaining part is at least a asymmetric (asymmetric rotation) shape on installation position.Therefore,, import with perforate and air nozzle position, check out that fully precision obtains the position reproduction of air importing with perforate and air nozzle by checking air even discharge lamp is not attached on the light fixture.
(second embodiment)
As the experiment that is used to check the inner cooling effectiveness of metal cap, the air of having prepared the metal cap side imports with perforate and air derives the quantity of using perforate, and six kinds of discharge lamp B1～B6, so that the metal cap internal temperature in the bright lamp is compared.To the cooling air that sprays from the air nozzle of light fixture, make the metal cap cooling by folk prescription only.Use is gone up the internal temperature that the thermocouple that attaches is measured metal cap at interior metal paper tinsel and outside lead junction (the outside lead installing department 10 of Fig. 1).Fig. 8 and Fig. 6 are described measurement result.Subsidiary one carry be, discharge lamp B1～B3 is conventional lamp, discharge lamp B4～B6 is a lamp of the present invention.
Assessment result shows that the discharge lamp B1 (conventional lamp) that does not have perforate is the highest in the metal cap temperature inside.And, check out with discharge lamp B2 and compare that the metal cap internal temperature of discharge lamp B4～B6 (lamp of the present invention) has the tendency of step-down with B3 (conventional lamp).Its reason is, discharge lamp B2 and B3 (conventional lamp) are being provided with other air derivation perforates with the air importing with the opposed position of perforate, thereby derive from air same as before and use the perforate air-out, do not import the internal heat of fully drawing metal cap with the cooling air of perforate importing metal cap inside and do not use from air.As a result, think that the cooling effectiveness of metal cap inside worsens.
On the other hand, in discharge lamp B4～B6 (lamp of the present invention), be provided with other air derivation perforates with the non-opposed position of perforate with the air importing.Therefore, before deriving with the perforate exhaust, carry out the convection current cooling, fully absorb heat from other air.For this is checked, the temperature of the cooling air of discharging from the metal cap of discharge lamp B2 (conventional lamp) and discharge lamp B5 (lamp of the present invention) (derive come out with perforate from air air) is measured.When the cooling flow was 100L/min, the air themperature after the exhaust showed that discharge lamp B5 (lamp of the present invention) compares with discharge lamp B2 (conventional lamp), and temperature exceeds about 45 ℃.
The above results shows, by a plurality of cooling air perforates are set in the metal cap side, perhaps by with the non-opposed position of perforate other air derivation being set and using perforate importing with air, can improve the cooling effectiveness of metal cap inside.And, as for the cooling flow, can obtain a kind of effect and be, to compare with common metal cap cooling (when the 100L/min, the metal cap internal temperature is 175 ℃), flow reduces to 1/2 or following (among the present invention, when 50L/min, the metal cap internal temperature is 160 ℃).
As mentioned above, short arc discharge lamp of the present invention comprises the location engaging piece, this location engaging piece be arranged on male or female the metal cap maintaining part at least one side around, be used to specify installation position, and this short arc discharge lamp also comprises a plurality of perforates, and these a plurality of perforates adopt non-opposed mode to be arranged on the metal cap side of male or female.This can improve cooling effectiveness, can use cooling jet reliably to locate work simultaneously.Perhaps, making perforate quantity is 2, and makes the location engaging piece become installing department, and this installing department is determined on installation position by unique, as protuberance or the recess on the side face of metal cap maintaining part.This helps to obtain a kind of discharge lamp, this discharge lamp can be owing to the bad cooling deficiency that metal cap takes place in the installing direction of discharge lamp location, nor understands the lamp that do not work, breakage owing to discharge lamp, breaks or the bright lamp posture of discharge lamp is bad short-life tendency occurs.
And above-mentioned discharge lamp is attached on a kind of light fixture, and this light fixture has: the metal cap fixed retainer, and it can mesh with the metal cap maintaining part of discharge lamp; And air feeder, its be arranged on be fixed to this metal cap fixed retainer on the air of discharge lamp import with the corresponding position of perforate.Like this, be accompanied by the height light usability of discharge lamp, the cooling capacity of light fixture can not increase but can reduce, thereby can realize the miniaturization and the little electrification of equipment.
Claims (6)
1. short arc discharge lamp, this short arc discharge lamp has anode and the negative electrode that is arranged in luminous tube inside in opposed mode, two ends at above-mentioned luminous tube are provided with sealed tube separately, the metal cap that is respectively fixed to each the sealed tube outside in above-mentioned two sealed tubes by immobilization material is housed, above-mentioned short arc discharge lamp is mounted to the enterprising enforcement usefulness of light fixture, and wherein above-mentioned metal cap comprises:
The metal cap maintaining part, it is separately positioned on the end of each metal cap in above-mentioned two metal caps, so that be attached on the above-mentioned light fixture;
The location engaging piece, its be arranged on two at least one sides in the metal cap maintaining part around, be used to specify the position of installing; And
A plurality of perforates, it is arranged on non-opposed position, above-mentioned two metal cap sides separately.
2. short arc discharge lamp according to claim 1 is characterized in that, above-mentioned perforate is provided with for importing and derive cooling air.
3. according to claim 1 or the described short arc discharge lamp of claim 2, it is characterized in that above-mentioned location engaging piece is as recess or protuberance on the side face of metal cap maintaining part.
4. light source with light fixture, this light fixture comprises short arc discharge lamp and the air feeder that is attached on it;
This short arc discharge lamp has:
Be arranged in the anode and the negative electrode of luminous tube inside in opposed mode,
The sealed tube that is provided with separately at the two ends of above-mentioned luminous tube, and
Be respectively fixed to the metal cap of each the sealed tube outside in above-mentioned two sealed tubes by immobilization material,
This metal cap comprises:
The metal cap maintaining part, it is separately positioned on the end of each metal cap in above-mentioned two metal caps, so that above-mentioned short arc discharge lamp is attached on the above-mentioned light fixture,
The location engaging piece, its be arranged on two at least one sides in the metal cap maintaining part around, be used to specify the position of installing, and
A plurality of perforates, it is arranged on non-opposed position, above-mentioned two metal cap sides separately,
Above-mentioned light fixture has the metal cap fixed retainer, and it comprises recess, and this recess can mesh with above-mentioned at least one metal cap maintaining part; And
Above-mentioned air feeder is arranged on the corresponding position of perforate with the metal cap of short arc discharge lamp, and this short arc discharge lamp is fixed on this metal cap fixed retainer.
5. light source according to claim 4 is characterized in that, above-mentioned perforate is provided with for importing and derive cooling air.
6. according to claim 4 or the described light source of claim 5, it is characterized in that above-mentioned location engaging piece is as recess or protuberance on the side face of metal cap maintaining part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002097660A JP2003297228A (en) | 2002-03-29 | 2002-03-29 | Short arc type discharge lamp and light source device |
| JP097660/2002 | 2002-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450585A CN1450585A (en) | 2003-10-22 |
| CN1275287C true CN1275287C (en) | 2006-09-13 |
Family
ID=28786217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031212336A Expired - Fee Related CN1275287C (en) | 2002-03-29 | 2003-03-28 | Short arc discharge lamp and light source equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2003297228A (en) |
| KR (1) | KR20030078753A (en) |
| CN (1) | CN1275287C (en) |
| TW (1) | TWI239549B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122418A (en) * | 2012-12-28 | 2015-12-02 | 豪雅冠得股份有限公司 | Discharge lamp and tool for attaching and detaching discharge lamp |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749910B2 (en) * | 2006-03-28 | 2011-08-17 | 株式会社オーク製作所 | Lamp power supply structure |
| JP4495689B2 (en) * | 2006-03-30 | 2010-07-07 | 株式会社オーク製作所 | Lamp and light source device |
| TWI396222B (en) * | 2006-04-13 | 2013-05-11 | Ushio Electric Inc | Discharge lamp |
| KR102288690B1 (en) | 2006-09-01 | 2021-08-11 | 가부시키가이샤 니콘 | Discharge lamp |
| JP4392803B2 (en) | 2007-03-20 | 2010-01-06 | Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 | Light source device |
| JP5023959B2 (en) * | 2007-10-22 | 2012-09-12 | ウシオ電機株式会社 | High pressure discharge lamp and high pressure discharge lamp apparatus |
| JPWO2009081590A1 (en) * | 2007-12-26 | 2011-05-06 | パナソニック株式会社 | Power supply terminal, cold cathode discharge lamp with the power supply terminal, backlight unit including the cold cathode discharge lamp, and liquid crystal display device including the backlight unit |
| JP4537488B2 (en) * | 2009-03-27 | 2010-09-01 | Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 | Discharge lamp |
| DE102009021524B3 (en) * | 2009-05-15 | 2010-11-11 | Osram Gesellschaft mit beschränkter Haftung | High pressure discharge lamp with cooling element |
| TWI470666B (en) * | 2009-09-24 | 2015-01-21 | Orc Mfg Co Ltd | A discharge lamp, a discharge lamp electrode, and a discharge lamp electrode |
| JP4573311B2 (en) * | 2010-03-17 | 2010-11-04 | Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 | Light source device and discharge lamp |
| JP6029387B2 (en) | 2012-08-30 | 2016-11-24 | 株式会社オーク製作所 | Discharge lamp attachment / detachment mechanism |
| JP7210269B2 (en) * | 2018-12-26 | 2023-01-23 | 株式会社オーク製作所 | Discharge lamps and lighting devices |
| JP7207244B2 (en) * | 2019-09-17 | 2023-01-18 | ウシオ電機株式会社 | SHORT ARC DISCHARGE LAMP AND LIGHT RADIATION DEVICE |
| WO2021053945A1 (en) * | 2019-09-17 | 2021-03-25 | ウシオ電機株式会社 | Short-arc discharge lamp and light radiating device |
| JP7278185B2 (en) | 2019-09-17 | 2023-05-19 | キヤノン株式会社 | LAMP DEVICE, EXPOSURE DEVICE, AND METHOD OF MANUFACTURING ARTICLE |
| JP7149631B2 (en) * | 2021-02-26 | 2022-10-07 | 株式会社ユメックス | Foil-sealed short-arc mercury lamp |
-
2002
- 2002-03-29 JP JP2002097660A patent/JP2003297228A/en active Pending
-
2003
- 2003-02-11 TW TW092102767A patent/TWI239549B/en not_active IP Right Cessation
- 2003-03-28 CN CNB031212336A patent/CN1275287C/en not_active Expired - Fee Related
- 2003-03-28 KR KR10-2003-0019483A patent/KR20030078753A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122418A (en) * | 2012-12-28 | 2015-12-02 | 豪雅冠得股份有限公司 | Discharge lamp and tool for attaching and detaching discharge lamp |
| CN105122418B (en) * | 2012-12-28 | 2017-02-01 | 豪雅冠得股份有限公司 | Discharge lamp and tool for attaching and detaching discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030078753A (en) | 2003-10-08 |
| TW200405389A (en) | 2004-04-01 |
| JP2003297228A (en) | 2003-10-17 |
| CN1450585A (en) | 2003-10-22 |
| TWI239549B (en) | 2005-09-11 |
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