CN101303957A - Discharge lamp - Google Patents
Discharge lamp Download PDFInfo
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- CN101303957A CN101303957A CNA2008100915166A CN200810091516A CN101303957A CN 101303957 A CN101303957 A CN 101303957A CN A2008100915166 A CNA2008100915166 A CN A2008100915166A CN 200810091516 A CN200810091516 A CN 200810091516A CN 101303957 A CN101303957 A CN 101303957A
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- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 208000003351 Melanosis Diseases 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 5
- 238000009740 moulding (composite fabrication) Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000803 paradoxical effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70008—Production of exposure light, i.e. light sources
- G03F7/70016—Production of exposure light, i.e. light sources by discharge lamps
-
- 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
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Discharge Lamp (AREA)
Abstract
The invention provides a discharge lamp to reduce the temperature rise of the anode of the discharge lamp, reduce blackening of the inner tube wall, prevent the sealed tube breaking and prolong the service life. The discharge lamp uses an interior guide rod to keep a pair of opposite columnar electrodes (cathode and anode) in the lightening part. The back of the anode on the circumference of the connecting part connected with the interior guide rod is provided with a concave part with the depth greater than the aperture. In addition, a through hole penetrating to the concave part from the side of the anode is formed. The side opening part of the side is closer to the discharge side than the side opening part of the concave part. When the column height of the anode is set as L1 and the depth of the concave part is set as L2, L1 and L2 meet the relation (L1/3 < L2 < 2L1/3). When the outside diameter of the anode is set as D1 and the maximum outside diameter of the interior guide rod in the concave part is set as D2 as well as the maximum diameter of the concave part is set as D3, D1 and D2 as well as D3 meet the relation (0.7*(D1-D2) < D3 < (1.1*((D1-D2)).
Description
Technical field
The present invention relates to the discharge lamps such as short-arc type of irradiation ultraviolet radiation, particularly the temperature of the electrode electrode structure that rises fewly discharge lamp.
Background technology
In the past usually when forming semi-conductive wiring pattern, the short arc discharge lamp of irradiation ultraviolet radiation etc. is used as light source.In this discharge lamp, anode is remained in the discharge space by the sealed tube of quartz system via electrode bar, makes under the anode state up or down, vertically lights discharge lamp and uses.And well-known, discharge lamp is in the condition of high temperature when lighting.And when discharge lamp was in illuminating state, the electronics and the anode that send from negative electrode collided, and caused the anode evaporation, are consumed by this collision.In addition, when the collision of electronics causes consumption of electrode, because thermal convection, the inwall of discharge lamp, especially from the inner tubal wall melanism of luminous tube central portion upper side.In addition, follow the requirement of in recent years high illuminationization, the discharge lamp high-power that becomes, the anode maximization that becomes.This large-scale anode is very heavy, so cause the hermetically-sealed construction breakage that is made of the electrode bar of supporting electrode or the sealed tube of quartzy system etc. because of the impact of the mobile grade of discharge lamp sometimes.At this problem, hole, groove or cavity are set with weight reduction on anode, and adjust the convection current of gas in the bulb, make the anode heat radiation and prevent melanism.Enumerate the example of several associated prior aries below.
Disclosed in the patent documentation 1 " short arc discharge lamp " is the lamp that has changed the long service life of the melanism position in the discharge lamp.Shown in Fig. 6 (a), form the through hole 103 that extends to rear end side from the front of anode 101.When lighting under the attitude above anode 101 is positioned at negative electrode, the gas in the bulb flows through in the through hole 103 of anode 101 by convection current, so cooling anodes 101 effectively.Flow through the gas flow anode rear of through hole 103, thus vaporized anode constitute solidify in the sealed part side end, thereby the bulb central portion is difficult for melanism, increase useful life.Label 102 is that rod is led in inside.
Disclosed in the patent documentation 2 " short arc discharge lamp " is to change the lamp of the interior airflow direction of discharge lamp with the long service life of the light transmittance of raising bulb.Shown in Fig. 6 (b), rearward end is provided with projection and endless groove around the main part of anode 201.Air-flow along projection and endless groove is directed circulating, and makes evaporant attached on endless groove, electrode bar 202, the bulb wall.The adhesion amount that effectively utilizes the evaporant in the scope of lamp middle section significantly reduces.Can keep illumination higher, increase useful life.Label 203 is rear end faces.
Disclosed in the patent documentation 3 " use for discharge lamp positive electrode " is to prevent leading section fusion and the anode of evaporation to prevent to be out of shape.Shown in Fig. 6 (c), in anode 301 inside cavity is set, at leading section gas stream hand-hole 305 is set, in rearward end or side surface part pressure regulating hole 302 is set.The high temperature and high speed air-flow that arc discharge produced is drawn into the cavity from gas stream hand-hole 305.Heat energy is released to the outside from anode 301 inwalls.In cavity, dispel the heat, therefore can disperse heat energy effectively.Label 303 is covers, the 304th, and the support portion.
[patent documentation 1] Japanese kokai publication hei 10-208696 communique
[patent documentation 2] TOHKEMY 2006-012672 communique
[patent documentation 3] TOHKEMY 2006-221934 communique
But there are the following problems in the electrode of existing discharge lamp.If the front at anode is provided with through hole, then the gas stream in the bulb is crossed through hole and is made the electric arc swing.Paradoxical discharge takes place near through hole, and electrode significantly consumes.If in the rear end of anode projection is set, then anode becomes heavy.Even merely the groove with the anode rearward end forms deeplyer, air-flow is not special yet to be changed.Assign to be provided with in the anode of cavity at the welding cap, the processing of weld part and quality management become loaded down with trivial details.Be arranged in the anode of side surface part in the hole that gas is flowed out, vaporized electrode material can be blowed to the central portion of bulb, thereby the melanism on effective utilization zone of bulb become remarkable.
Summary of the invention
The objective of the invention is to, solve above-mentioned existing issue, a kind of electrode of such discharge lamp is provided: better aspect thermal diffusivity and discharge stability, in light weight and can not make inside lead rod and sealed tube breakage, to make easy and be difficult for melanism, the life-span is long.
In order to address the above problem, discharge lamp of the present invention possesses: luminous tube; Opposed a pair of columned electrode in luminous tube; And the inside that electrode remains in the luminous tube led rod, the electrode of this discharge lamp is formed with the recess of the degree of depth greater than the aperture leading the connecting portion periphery that rod is connected with inside.Be formed with through hole on the electrode, this through hole leads to recess side opening portion from the side peristome of electrode.The side peristome is more distolateral than the discharge of the close electrode of recess side opening portion.When the cylinder height with electrode is made as L
1, concave depth is made as L
2The time, (L
1/ 3)＜L
2＜(2L
1/ 3).The external diameter of electrode is made as D
1, the maximum outside diameter of the inside in the recess being led rod is made as D
2, the maximum gauge of recess is made as D
3The time, satisfy (0.7 * (D
1-D
2))＜D
3＜(1.1 * (D
1-D
2)).
By adopting said structure, can utilize the recess of the rear end face of columned electrode, near the heat the leading section of electrode is released to inside leads excellent side, so can realize the lightweight of electrode, improve radiating effect, prolong the useful life of discharge lamp.Can further improve radiating effect by through hole.
Description of drawings
Fig. 1 is the outside drawing of the discharge lamp in the first embodiment of the present invention.
Fig. 2 is the enlarged drawing of the anode of the discharge lamp in the first embodiment of the present invention.
Fig. 3 is the enlarged drawing of the anode of the discharge lamp in the second embodiment of the present invention.
Fig. 4 is the enlarged drawing of the anode of the discharge lamp in the third embodiment of the present invention.
Fig. 5 is the enlarged drawing of the anode of the discharge lamp in the fourth embodiment of the present invention.
Fig. 6 is the schematic diagram that the structure of the electrode that has discharge lamp now is shown.
Symbol description
1 discharge lamp; 2 illuminating parts; 3 sealed tube portions; 4 lamp holders; Rod is led in 5 outsides; 6 metal formings; Rod is led in 7 inside; 9 negative electrodes; 10,20,30,40 anodes; 11 leading sections; 12 radiating parts; 13 main surfaces; 14 front end faces; 15 front inclined-planes; 16 rear side inclined-planes; 17 back sides; 18 electrode retaining holes; 21 recesses; 22 recess side; 23 recess bottom surfaces; 24 through holes; 34 inclination through holes; 25,35 inner port; 26,36 external ports; 27 caps; 28 lid through holes.
Embodiment
Below with reference to Fig. 1～Fig. 5, detailed description is used to implement best mode of the present invention.
[first embodiment]
The first embodiment of the present invention is to use the discharge lamp of following anode, and this anode is led rod by the inside of point of discharge (point of discharge takes place at the electrode front end) opposition side and kept, and the back side has darker recess.
Fig. 1 is the outside drawing of the discharge lamp in the first embodiment of the present invention.Fig. 2 is the enlarged drawing that the back side has the anode of recess.Fig. 2 (a) is the outside drawing of anode.Fig. 2 (b) is the profile along the B-B line among Fig. 2 (a).Among Fig. 1 and Fig. 2, discharge lamp 1 is the lamp that discharges between the electrode of inside.Anode 10 is electrodes of side of the positive electrode.Negative electrode 9 is electrodes of negative side.It is the parts that support electrode and power that rod 7 is led in inside.Metal forming 6 is that rod and outside parts of leading the rod electrical connection are led in inside.Sealed tube portion 3 is parts that bulb is sealed airtightly.It is via the parts of metal forming to electrode power supply from lamp holder that rod 5 is led in the outside.Illuminating part 2 is to carry out luminous part by interelectrode discharge, is to form the glass component of discharge space with the electrode sealing.Lamp holder 4 is to be used for the parts that mechanical type keeps lamp and powers.Recess 21 is towards the columned hole that front end face is provided with from the back side.The following describes the example that recess 21 is set on anode 10, but this is also applicable to negative electrode 9.
The function and the action of the discharge lamp in the first embodiment of the present invention that constitutes as mentioned above are described.At first, with reference to Fig. 1, the feature summary of discharge lamp is described.Discharge lamp 1 is by constituting as the lower part: illuminating part 2 and two sealed tube portions 3, in illuminating part 2 arranged opposite anode 10 and negative electrode 9, support go forward side by side the work inside of electricity of these anodes 10 and negative electrode 9 and lead rod 7, outside and lead rod 5 and the metal forming 6 by conductivity this inside is led rod 7 and outsidely led the sealed tube portions 3 that rod 5 is connected and seals airtightly.In addition, be fixed with lamp holder 4 in the sealed tube portion 3, in another sealed tube portion 3, also be fixed with lamp holder 4.Discharge lamp 1 is fixed on the light supply apparatus via lamp holder 4.The back side (the cylinder bottom surface of sealed tube portion side) at anode 10 is provided with recess 21.
Utilizing inside to lead rod 7 remains on a pair of columned electrode in the luminous tube in opposed mode.The degree of depth is formed on and the inner rod 7 connecting portion peripheries that are connected of leading greater than the recess in aperture on anode 10.Utilize the recess 21 of columned anode 10 rear end faces, near the heat the leading section of anode 10 is released to inside leads excellent 7 sides.When the cylinder height with anode 10 is made as L
1, the degree of depth of recess 21 is made as L
2The time, satisfy (L
1/ 3)＜L
2＜(2L
1/ 3).When the external diameter with anode 10 is made as D
1, maximum outside diameter that rod 7 is led in the inside in the recess 21 is made as D
2, the maximum gauge of recess 21 is made as D
3The time, satisfy (0.7 * (D
1-D
2))＜D
3＜(1.1 * (D
1-D
2)).
Then, with reference to Fig. 2, the function of anode is described.Leading section 11 is circular cylinder shaped portions of anode 10, and leads rod by inside and 7 keep.Radiating part 12 is the parts that are connected with leading section 11, is that the inside of anode 10 has the cylindric part of recess 21.Front end face 14 is upper surfaces of cylindric electrode, be and negative electrode 9 between the face that discharges.Main surface 13 is cylindrical sides of electrode.The back side 17 is cylinder bottom surfaces of anode 10.Recess 21 is towards the columned hole that front end face is provided with from the back side.Recess side 22 is the medial surfaces on the circumference of cylindric recess 21.Recess bottom surface 23 is bottom surfaces of cylindric recess 21.Electrode retaining hole 18 is the holes that are arranged at recess bottom surface 23.Electrode total length L
1It is the cylinder axial length of anode 10.Recess depths L
2Be 17 cylinder axial lengths from the back side to recess bottom surface 23.Outer diameter D
1It is the external diameter of the main surface 13 of anode 10.Outer diameter D
2It is the external diameter that rod 7 is led in inside.Inside diameter D
3It is the internal diameter of the circumference side of recess 21.
When the cylinder height with anode 10 is made as L
1, the degree of depth of recess 21 is made as L
2The time, satisfy (L
1/ 3)＜L
2＜(2L
1/ 3) more suitable.When the minimum outer diameter with the main part of anode 10 is made as D
1, lead the maximum outside diameter of rod 7 and be made as D being provided in inside in the recess 21
2, the maximum gauge of recess 21 is made as D
3The time, satisfy (0.7 * (D
1-D
2))＜D
3＜(1.1 * (D
1-D
2)) more suitable.By satisfying this condition, can improve the cooling effect of anode 10, prevent anode 10 distortion, thereby prevent to deviate from because of heat causes anode 10.And,, can prevent that inside from leading excellent 7 bendings, sealed tube breakage by making anode 10 lightweights.Therefore, can increase the life-span of lamp.In addition, tiny groove is set, thereby can increases the surface area of radiating part 12, can increase the radiating effect of radiating part 12 on the surface of radiating part 12.
As mentioned above, in the first embodiment of the present invention, discharge lamp constitutes and uses following anode, promptly this anode is led by the inside of point of discharge opposition side that rod keeps and the back side has darker recess, lead excellent side so can utilize recess on the rear end face of cylindric electrode that near the heat the electrode leading section is released to inside, therefore can alleviate the weight of electrode, improve radiating effect, prolong the useful life of discharge lamp.
[second embodiment]
The second embodiment of the present invention is to use the discharge lamp as bottom electrode, and the back side of this electrode has recess, and is formed with the through hole that leads to recess inside from main surface.
Fig. 3 is the enlarged drawing of the anode of the discharge lamp in the second embodiment of the present invention.Fig. 3 (a) is the outside drawing of anode.Fig. 3 (b) is the profile along the B-B line among Fig. 3 (a).Among Fig. 3 (a) and Fig. 3 (b), anode 20 is to have the side of the positive electrode electrode that leads to the hole of recess inside from main surface.Through hole 24 is that main surface 13 and recess 21 are communicated with the hole of getting up.Inner port 35 is opening portions of the recess side side of through hole 24.External port 36 is opening portions of the main surface side of through hole 24.Shown in Fig. 3 (a), Fig. 3 (b), the radiating part 12 of anode 20 is provided with main surface 13 and recess 21 is communicated with the through hole 24 of getting up.Through hole 24 is provided with 4 equably on the circumferencial direction of the radiating part 12 of electrode.
By the cooling effect in the recess 21 that through hole 24 is arranged on the radiating part 12, can improves the anode 20 that is in high temperature when lighting.In addition, the external port 26 that will lead to the through hole 24 of recess 21 is arranged on the main surface 13, so can not cause discharge instability because of the convection current that enters into through hole 24, also unusual consumption of electrode can not occur near the external port 26 of through hole 24.Therefore, can increase the life-span of lamp.
Illustrated above the example of 4 through holes is set in a circumferential direction equably, but be not limited to be provided with 4 through holes, 6 holes also can be set.Because the sectional area of radiating part 12 is less, thus reduce to the heat transmission of radiating part 12 from the leading section 11 of anode 20, thus the effect that might cause cooling off leading section 11 reduces.Therefore, need suitably set the diameter and the quantity of through hole 24.
[the 3rd embodiment]
The third embodiment of the present invention is to use the discharge lamp of following electrode, and this electrode has recess overleaf, and has that to lead to recess from main surface inner and to the oblique through hole of electrode front end face inclination.
Fig. 4 is the enlarged drawing of the anode of the discharge lamp in the third embodiment of the present invention.Fig. 4 (a) is the outside drawing of anode.Fig. 4 (b) is the profile along the B-B line among Fig. 4 (a).Among Fig. 4 (a) and Fig. 4 (b), anode 30 is the side of the positive electrode electrodes that have to the oblique hole of electrode front end face inclination.Inclination through hole 34 is that main surface 13 and recess 21 are communicated with the hole of getting up, and end face 14 inclinations are oblique forward.Inner port 35 is opening portions of recess side 22 sides of inclination through hole 34.External port 36 is opening portions of main surface 13 sides of inclination through hole 34, than inner port 35 close front end face 14 sides.L
3Distance between expression inner port 35 and the external port 36, be electrode axially on length.Shown in Fig. 4 (a), Fig. 4 (b), end face 14 inclinations are oblique forward than inner port 35 for the external port 36 of inclination through hole 34, and inclination through hole 34 caves in from radiating part 12 forward end 11 sides.
In addition, the external port 36 of the inclination through hole 34 that leads to recess 21 is set, so can or not unusual consumption of electrode near the external port 36 of inclination through hole 34, not occur on main surface 13 because of entering into the convection current guiding discharge instability of inclination through hole 34.Therefore, can increase the life-span of lamp.But, owing to anode 30 distortion, discharge instability or anode 30 unusual situations about consuming might occur, thus for the external port 36 that makes inclination through hole 34 not too near front end face 14, its position need suitably be set.
[the 4th embodiment]
The fourth embodiment of the present invention is to use the discharge lamp as bottom electrode, and the back side of this electrode has recess, and this electrode has that to lead to recess from main surface inner and to the oblique through hole of electrode front end face inclination, also has the discoid cap of supporting radiating part.
Fig. 5 is the enlarged drawing of the anode of the discharge lamp in the fourth embodiment of the present invention.Fig. 5 (a) is the section of anode.Fig. 5 (b) is the end view of the rear side of anode.Among Fig. 5 (a) and Fig. 5 (b), omit explanation with the 3rd embodiment same section.Anode 40 is the anodes with discoid cap of supporting radiating part.Cap 27 is that rod 7 and the columnar component that couples together of radiating part 12 are led in inside.Lid through hole 28 is to be arranged at the through hole that the cylinder axis of cap makes progress.
The temperature that discharge lamp of the present invention is suitable for electrode most rises less, the discharge lamp of irradiation ultraviolet radiation.
Claims (5)
1. discharge lamp, this discharge lamp possesses: luminous tube; Opposed a pair of columned electrode in described luminous tube; And the inside that described electrode remains in the described luminous tube led rod, it is characterized in that,
Described electrode is formed with the recess of the degree of depth greater than the aperture leading the connecting portion periphery that is connected of rod with described inside.
2. discharge lamp according to claim 1 is characterized in that,
Be formed with through hole on the described electrode, this through hole leads to recess side opening portion from the side peristome of described electrode.
3. discharge lamp according to claim 2 is characterized in that,
Described side peristome is more distolateral than the discharge of the close described electrode of described recess side opening portion.
4. according to each described discharge lamp in the claim 1～3, it is characterized in that,
When the cylinder height with described electrode is made as L
1, described concave depth is made as L
2The time, satisfy (L
1/ 3)＜L
2＜(2L
1/ 3).
5. discharge lamp according to claim 1 is characterized in that,
When the external diameter with described electrode is made as D
1, with the inside in the described recess lead the rod maximum outside diameter be made as D
2, the maximum gauge of described recess is made as D
3The time, satisfy (0.7 * (D
1-D
2))＜D
3＜(1.1 * (D
1-D
2)).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-123132 | 2007-05-08 | ||
| JP2007123132 | 2007-05-08 | ||
| JP2008038178A JP5165413B2 (en) | 2007-05-08 | 2008-02-20 | Electrode structure for discharge lamp |
| JP2008-038178 | 2008-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101303957A true CN101303957A (en) | 2008-11-12 |
| CN101303957B CN101303957B (en) | 2012-04-18 |
Family
ID=40113807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100915166A Expired - Fee Related CN101303957B (en) | 2007-05-08 | 2008-04-15 | Discharge lamp |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5165413B2 (en) |
| KR (1) | KR101460803B1 (en) |
| CN (1) | CN101303957B (en) |
| TW (1) | TWI434317B (en) |
Cited By (4)
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|---|---|---|---|---|
| CN101964296A (en) * | 2009-07-14 | 2011-02-02 | 优志旺电机株式会社 | Short arc discharge lamp |
| CN102740573A (en) * | 2011-04-08 | 2012-10-17 | 精工爱普生株式会社 | Discharge lamp lighting device, projector, and discharge lamp lighting method |
| JP2013118202A (en) * | 2013-03-22 | 2013-06-13 | Yumex Inc | Electrode for short-arc type discharge lamp |
| CN109390208A (en) * | 2017-08-07 | 2019-02-26 | 优志旺电机株式会社 | Short arc discharge lamp |
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| JP2010129375A (en) * | 2008-11-27 | 2010-06-10 | Yumex Inc | Short-arc electrode for discharge lamp |
| JP5276485B2 (en) * | 2009-03-13 | 2013-08-28 | 株式会社オーク製作所 | Short arc type discharge lamp |
| JP5363174B2 (en) * | 2009-04-10 | 2013-12-11 | 株式会社ユメックス | Short arc type discharge lamp |
| DE102009021524B3 (en) * | 2009-05-15 | 2010-11-11 | Osram Gesellschaft mit beschränkter Haftung | High pressure discharge lamp with cooling element |
| TWI412057B (en) * | 2009-07-14 | 2013-10-11 | Ushio Electric Inc | Short arc discharge lamp |
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| JP5263065B2 (en) * | 2009-07-31 | 2013-08-14 | ウシオ電機株式会社 | Super high pressure mercury lamp |
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| JP4743313B2 (en) * | 2009-07-31 | 2011-08-10 | ウシオ電機株式会社 | Ultra high pressure mercury lamp and ultra high pressure mercury lamp lighting device |
| JP5240144B2 (en) * | 2009-09-18 | 2013-07-17 | ウシオ電機株式会社 | Super high pressure discharge lamp |
| JP7032859B2 (en) * | 2017-02-28 | 2022-03-09 | 株式会社オーク製作所 | Discharge lamp and manufacturing method of discharge lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946783Y1 (en) * | 1970-05-28 | 1974-12-21 | ||
| JP2003331780A (en) * | 2002-05-08 | 2003-11-21 | Ushio Inc | Electrode structure for short-arc discharge lamp |
| JP2004111235A (en) * | 2002-09-19 | 2004-04-08 | Ushio Inc | Discharge lamp |
| JP4042588B2 (en) * | 2003-02-27 | 2008-02-06 | ウシオ電機株式会社 | Discharge lamp |
| JP2006221934A (en) * | 2005-02-09 | 2006-08-24 | Yumex Inc | Positive electrode for discharge lamp |
| JP2007095327A (en) * | 2005-09-27 | 2007-04-12 | Orc Mfg Co Ltd | Short arc discharge lamp |
-
2008
- 2008-02-20 JP JP2008038178A patent/JP5165413B2/en active Active
- 2008-03-12 TW TW097108660A patent/TWI434317B/en not_active IP Right Cessation
- 2008-04-15 CN CN2008100915166A patent/CN101303957B/en not_active Expired - Fee Related
- 2008-05-07 KR KR1020080042183A patent/KR101460803B1/en active IP Right Grant
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964296A (en) * | 2009-07-14 | 2011-02-02 | 优志旺电机株式会社 | Short arc discharge lamp |
| CN101964296B (en) * | 2009-07-14 | 2015-01-21 | 优志旺电机株式会社 | Short arc type discharge lamp |
| CN102740573A (en) * | 2011-04-08 | 2012-10-17 | 精工爱普生株式会社 | Discharge lamp lighting device, projector, and discharge lamp lighting method |
| CN102740573B (en) * | 2011-04-08 | 2014-10-15 | 精工爱普生株式会社 | Discharge lamp lighting device, projector, and discharge lamp lighting method |
| JP2013118202A (en) * | 2013-03-22 | 2013-06-13 | Yumex Inc | Electrode for short-arc type discharge lamp |
| CN109390208A (en) * | 2017-08-07 | 2019-02-26 | 优志旺电机株式会社 | Short arc discharge lamp |
| CN109390208B (en) * | 2017-08-07 | 2023-02-28 | 优志旺电机株式会社 | Short arc type discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5165413B2 (en) | 2013-03-21 |
| KR101460803B1 (en) | 2014-11-11 |
| KR20080099173A (en) | 2008-11-12 |
| TW200845100A (en) | 2008-11-16 |
| JP2008305782A (en) | 2008-12-18 |
| TWI434317B (en) | 2014-04-11 |
| CN101303957B (en) | 2012-04-18 |
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