CN105122423B - Short arc discharge lamp - Google Patents
Short arc discharge lamp Download PDFInfo
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- CN105122423B CN105122423B CN201480021153.2A CN201480021153A CN105122423B CN 105122423 B CN105122423 B CN 105122423B CN 201480021153 A CN201480021153 A CN 201480021153A CN 105122423 B CN105122423 B CN 105122423B
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- Prior art keywords
- seal pipe
- discharge lamp
- electrically connected
- metal foil
- belt metal
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
- H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
In lamp is lighted, suppress seal pipe to crack discharge lamp is provided.Short arc discharge lamp has：Electrode support bar, which is arranged in the seal pipe being integrally formed with luminous tube, and the electrode in the luminous tube is supported；It is electrically connected and takes over the baton, which is electrically connected with external power source；Glass component, which is inserted with the electrode support bar and described being electrically connected is taken over the baton, and deposition is in the seal pipe；Multiple belt metal foils, they extend along the outer surface of the glass component；And a pair of endless members, they by the belt metal foil and the electrode support bar and it is described be electrically connected to take over the baton electrically connect.Also, rated power is more than 3kW, and the current value in stably lighting is more than 130A, and the inclosure amount of mercury in the luminous tube is below 7mg/cc, and the thickness of the belt metal foil is determined in the way of meeting following formula.σ=7.54 × 105T-6 × 107+ 98.9 σ≤1.20 × 10 of T=1.92 (I/nwd)8。
Description
Technical field
The present invention relates to short arc discharge lamp, more particularly to the sealing structure of discharge lamp.
Background technology
In short arc discharge lamp, the sealing of glass system is integrally formed with the two ends of the luminous tube for having enclosed electrode
Pipe, in seal pipe, maintains the electrode support bar for supporting electrode by tubular glass tubing.In the sealing structure based on metal forming
In, reduce by heat the diameter of seal pipe, seal pipe deposition is made in glass tubing.Thus, metal forming is sealed, in luminous tube into
For airtight conditions.
In quasiconductor, liquid crystal manufacture field, for improve production efficiency, the high-power of short arc discharge lamp is obtained
Development.Therefore, the discharge lamp big for rated power, makes becket be fixed on electrode support bar, make multiple metal forming depositions in
Becket.Thus, via metal forming, becket, electrode support bar supply electric power (referring for example to patent documentation 1).
In lamp is lighted, when the difference of the coefficient of thermal expansion due to becket and seal pipe is cracked near becket
When, the becket of the condition of high temperature is contacted with extraneous gas and is aoxidized, and causes metal forming to fuse.Or it is likely due to sending out for crackle
Open up and make luminous tracheal rupture.In order to prevent the generation of crackle, it is known to and seal pipe is formed as into double-deck construction, in metal
(reference is specially less than the thickness in the range of ultimate value, determining seal pipe for the electric current density of the electric current flow through in ring and metal forming
Sharp document is 2).
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2007-115414 publications
Patent documentation 2：Japanese Unexamined Patent Publication 2007-095328 publications
The content of the invention
Invent problem to be solved
In the discharge lamp, in order to realize the exposure of precision, make sometimes inclosure amount of mercury few, thus, obtain peak value half range
Value width diminishes and significant spectral distribution property near peak wavelength.In the few this discharge lamp of amount of mercury is enclosed, low
Light under voltage, become stable illuminating state.As a result, in the discharge lamp of high-power (more than 3kW), flowing when lamp is lighted
The electric current crossed becomes high current value (such as more than 130A).
More heat are produced as the current value flow through in metal forming, becket is uprised, particularly, in becket and
On contact surface between metal forming and seal pipe, larger thermal stress is acted on to seal pipe.But, in little short of sealing external diameter
In the case of arc discharge lamp etc., seal pipe is difficult to adopt double-decker, and the thickness of metal forming to be also restricted.Therefore, nothing
Method is substantially prevented from cracking near becket.
Therefore, for height output, the short arc discharge lamp (when particularly monolayer seals tubular construction) of high current type,
Ask in lamp is lighted, suppress seal pipe to crack.
Means for solving the problems
The discharge lamp of the present invention has：Electrode support bar, which is arranged in the seal pipe being integrally formed with luminous tube, right
Electrode in the luminous tube is supported；It is electrically connected and takes over the baton, which is electrically connected with external power source；Glass component, which is inserted with described
Electrode support bar and described being electrically connected are taken over the baton, and deposition is in the seal pipe；Multiple belt metal foils, they are along the glass portion
The outer surface of part extends；And a pair of endless members, they are by the belt metal foil and the electrode support bar and the electricity
Pitman is electrically connected.
Endless member is electroconductive component, for example, can be made up of becket etc., multiple metal formings and ring outer surface
Connection.Glass component can be configured to be formed with the tubular glass of axis hole at two ends.
In the present invention, rated power be more than 3kW, the current value in stably lighting be more than 130A, the luminous tube
Interior inclosure amount of mercury is below 7mg/cc, and the thickness of the belt metal foil is determined in the way of meeting following formula.
σ=7.54 × 105T-6 × 107
T=1.92 (I/nwd)+98.9
σ≤1.20×108
Wherein, σ (Pa) is the thermal stress that the inner surface from the appearance of the endless member towards the seal pipe is acted on, T
(DEG C) is the hull-skin temperature of the seal pipe, and I (A) is the current value in stably lighting, and n is the piece of the belt metal foil
Number, w (mm) is the width of the belt metal foil, and d (mm) is the thickness of the belt metal foil.
Furthermore it is possible to the thermal stress for setting a pair of endless member both sides is T as σ, hull-skin temperature, or can also be to one
Endless member is defined.As long as in the connection that the seal pipe for easily producing the crackle caused by high current is connected with endless member
Determine at portion.
Find in the present invention：Rated power it is big, light at lower voltages and the little discharge lamp of seal pipe external diameter etc.
In, the heat affecting produced by metal forming in lamp is lighted is to acting on sealing pipe internal surface and the electric conductivity endless member such as becket
The thickness of metal forming is defined as distinctive thickness by the thermal stress of the contact surface between outer surface so that even if metal forming flows through
High current will not also be cracked.There is the metal forming of the thickness for being considered unnecessary up to now by application, can realize
The discharge lamp of superior durability.
For the smaller short arc discharge lamp of seal pipe external diameter, can effectively suppress the generation of crackle, can apply
The discharge lamp of following formula is met in seal pipe.
I/L≥5
If the hull-skin temperature of seal pipe is too low, seal pipe becomes big with the temperature difference of luminous tube, thus produces thermal deformation.
On the other hand, if hull-skin temperature is too high, lamp head becomes big with the temperature difference of seal pipe, thus produces thermal deformation.Therefore, with
Meet following formula mode determine lamp stably light in the seal pipe hull-skin temperature.
150≤T≤800
Discharge lamp in the another way of the present invention has：Electrode support bar, which is arranged at and is integrally formed with luminous tube
Seal pipe in, the electrode in the luminous tube is supported；It is electrically connected and takes over the baton, which is electrically connected with external power source；Glass component,
Which is inserted with the electrode support bar and described being electrically connected is taken over the baton, and deposition is in the seal pipe；Multiple belt metal foils, their edges
The outer surface for the glass component extends；And endless member, its by the belt metal foil with it is described be electrically connected to take over the baton be electrically connected
Connect, the thickness of the belt metal foil is determined in the way of meeting following formula.
σ≤1.20×108
Wherein, σ (Pa) is the thermal stress acted on towards the inner surface of the seal pipe from the appearance of the endless member.
Invention effect
In accordance with the invention it is possible to obtain the discharge lamp with the high sealing structure of reliability, the sealing structure is in lighting
Prevent from cracking in seal pipe.
Description of the drawings
Fig. 1 is the general profile chart of the short arc discharge lamp as present embodiment.
Fig. 2 is the general profile chart of cathode side seal pipe.
Fig. 3 is the chart for illustrating the relation between seal pipe hull-skin temperature and thermal stress.
Fig. 4 is to illustrate the relation between the electric current density of the electric current flow through in metal forming and seal pipe hull-skin temperature
Chart.
Specific embodiment
Below, referring to the drawings embodiments of the present invention are illustrated.
Fig. 1 is the general profile chart of the short arc discharge lamp as present embodiment.
Short arc discharge lamp 10 is to make anode 14 and negative electrode 16 relative in the spherical luminous tube 12 being made up of quartz glass
The lamp of configuration, the seal pipe 20,60 of quartz glass are integrally formed in the two ends of luminous tube 12 in an opposing fashion.Seal pipe
20th, 60 two ends are closed by lamp holder 80A, 80B.
In the inside of seal pipe 20,60, part (hereinafter referred to as installing component) 18A, 18B, the part are sealed with respectively
18A, 18B supporting anodes 14 and negative electrode 16, and the discharge space 11 in luminous tube 12 is sealed.In discharge space 11
It is sealed with hydrargyrum and rare gas.
Short arc discharge lamp 10 is the height output discharge lamp of more than rated power 3kW, and on the other hand, seal pipe external diameter compares
It is little, and in order to form the illumination light with significant spectral distribution property near peak wavelength, by the mercury seal in luminous tube
Enter amount and be defined as below 7mg/cc.Therefore, magnitude of voltage when stably lighting is low, and inverse current value is big, current value reach 130A with
On.
Fig. 2 is the general profile chart of cathode side seal pipe.In addition, anode-side seal pipe is similarly constituted.
As shown in Fig. 2 the electrode supporting for supporting negative electrode 16 is internally provided with the seal pipe 60 for being sealed with installing component 18B
Rod 17B, electrode support bar 17B are arranged vertically.Electrode support bar 17B is inserted in the heavy-walled glass pipe 22 for being formed at cylindrical shape
In the axis hole of (hereinafter referred to as electrode side glass tubing), and kept by electrode side glass tubing 22.
Electrode support bar 17B does not extend to the end of seal pipe 60, but across the interval of regulation and metal lead rod
(be electrically connected and take over the baton) 19B is coaxially oppositely disposed.Electrode support bar 17B and lead rod 19B are inserted in the tubular glass portion for being located at heavy wall
The two ends of part (hereinafter referred to as outside glass part) 26 insert in the hole, 26 holding electrode support stick 17B of outside glass part and
Lead rod 19B.Lead rod 19B is connected with the wire (not shown) of outside, and the wire is connected with power supply unit (not shown).
In outside, the two ends of glass component 26 are adjacent to respectively and are configured with becket (endless member) 23,25, electrode support bar
17B and lead rod 19B are inserted into and are welded in the axis hole of becket 23,25.Becket near luminous tube 12 is (on the inside of hereinafter referred to as
Becket) 23 abut with electrode side glass tubing 22, the fixed glass of another becket (hereinafter referred to as outside becket) 25 and heavy wall
Glass pipe 28 is abutted, and the fixed glass tubing 28 of the heavy wall axially inserts for lead rod 19B and which is kept.
Between inner metal ring 23 and outside becket 25, multiple belt metal foils 27 are along outside glass part 26
Outer surface extends in the axial direction, and circumferentially being configured at equal intervals.Also, 27 respective two ends of multiple belt metal foils are welded
It is connected to the periphery of inner metal ring 23 and outside becket 25.Outside becket 25 makes lead rod 19B electric with belt metal foil 27
Connection, inner metal ring 23 makes belt metal foil 27 electrically connect with electrode support bar 22, thus, from leading for electrically connecting with power supply unit
Rod 19B is to 16 supply electric power of negative electrode.
During sealing process, by heating such as gas burners, diameter reduces seal pipe 60, so as to deposition is in electrode side glass
Pipe 22, outside glass part 26, fixed glass tubing 28.Thus, sealed inside seal pipe 60, comprising electrode side glass tubing 22,
Inner metal ring 23, outside becket 25, outside glass part 26 and fixed glass tubing 28 are consolidated in interior installing component 18B
Determine into and do not move in the axial direction.
Below, illustrated using the sealing structure of Fig. 3,4 pairs of present embodiments.
Fig. 3 is the chart for illustrating the relation between seal pipe hull-skin temperature and thermal stress.Fig. 4 is illustrated in metal forming
The chart of the relation between the electric current density and seal pipe hull-skin temperature of the electric current for flowing through.
When lamp is lighted, metal is different with the coefficient of thermal expansion of glass, therefore in metal forming 27 and seal pipe 60, and outside
Becket 25 produces thermal stress on face with the contact surface/deposition of seal pipe 60.Between inner metal ring 23 and seal pipe 60
Thermal stress is produced similarly.
As described above, discharge lamp 10 is short arc discharge lamp, and it is low-voltage and high-current type discharge lamp, seal pipe external diameter ratio
It is less.Therefore, in lamp is lighted, by the 27 overall heat affecting for producing of metal forming to the periphery from inner side, outside becket 23,25
Face is nearby to the thermal stress of the effect of seal pipe 60.Compared with the big discharge lamp of seal pipe external diameter, the impact of this heat is very big.This
Outward, in the case where seal pipe external diameter is reduced, it is difficult to increase sealing intensity using double-layer sealing structure.
The electric current density of the electric current flow through in metal forming 27 is bigger, and the temperature of metal forming 27 more rises, and heat is bigger, so
And electric current density changes according to the thickness of metal forming 27.Thus, if in order to prevent from making because the paper tinsel that deposition deficiency causes is peeled off
Metal forming 27 is excessively thin, then thermal stress becomes big and is possible to crack.Therefore, in the present embodiment, will be with electric current density phase
The thickness of the metal forming 27 of pass is defined as more than the thickness of regulation.
As shown in Figure 3 and Figure 4, should with regard to the heat from the periphery of outside becket 25 towards the effect of the inner surface of seal pipe 60
Power σ (Pa), the hull-skin temperature of seal pipe 60 is set to T (DEG C), the current value in stably lighting is set to I (A), by metal
When the piece number of paper tinsel 27 is set to n, the width of metal forming is set to w (mm), the thickness of metal forming is set to d (mm), so that with following formula
The mode that son is set up determines the piece number n of the thickness d (mm) of metal forming, the width w (mm) of metal forming and metal forming 27.
σ=7.54 × 105T-6 × 107 ····(1)
T=1.92 (I/nwd)+98.9 (2)
σ≤1.20×108 ····(3)
Formula (1) illustrates that seal pipe hull-skin temperature T has proportionate relationship with thermal stress σ (with reference to Fig. 3).Wherein, become Fig. 2
Surface temperature at shown seal pipe point PT.Also, formula (2) illustrates seal pipe hull-skin temperature T and electric current density (I/nwd)
There is proportionate relationship (with reference to Fig. 4).Seal pipe hull-skin temperature is measured actually by using thermocouple etc. and surveyed by emulating
Calorimetric stress, specify that formula (1) and (2) afterwards.
Also, formula (3) is according to derived formulas by rule of thumb such as experiments, however, it is determined that current value I, then can be with satisfaction
The mode for stating formula (3) determines the configuration slice number n of metal forming 27, width w, thickness d.Inner metal ring 23 there is also same pass
System.
But, for the configuration slice number and width of metal forming 27, in general become and existing short arc discharge lamp phase
With specification situation it is more, also, by being limited in manufacturing process and requirement, degree of freedom is less.Therefore, actually by tune
The thickness of whole metal forming 27 is preventing crackle.Specifically, become metal forming thick than ever.But, draw if blocked up
Play paper tinsel to peel off, it is thus determined that being below 0.1mm.
In addition, if seal pipe 60 is excessive with the temperature difference of luminous tube 12 or lamp holder 80B, the thermal deformation of glass becomes big, holds
It is also easy to produce crackle.Therefore, rated power and sealing are determined in the way of reaching the seal pipe hull-skin temperature for meeting following formula
Pipe diameter etc..
150≤T≤800 ····(4)
By making seal pipe hull-skin temperature T for more than 150 °, suppress because of thermal deformation caused by the temperature difference with luminous tube,
By making seal pipe hull-skin temperature T for less than 800 °, suppress because of thermal deformation caused by the temperature difference with lamp head.
Also, the short arc discharge lamp smaller for seal pipe external diameter L, it is preferred to use meet the sealing knot of above-mentioned formula
Structure, here, being suitable for the discharge lamp with the seal pipe external diameter L for meeting following formula.For example, when current value is 200A, external diameter L
It is confirmed as below 40mm.
I/L≥5 ····(5)
The short arc discharge lamp smaller for seal pipe external diameter L, when taking double-layer seal to tie to improve crack resistance
During structure, cause the piece number and width of metal forming to become very little, therefore, it is necessary to make metal forming become very thick, cause paper tinsel to peel off
Dangerous increase.That is, in the discharge lamp for meeting formula (5), it is desirable to determine metal forming in the way of meeting formula (1), (2) and (3)
Thickness.
Like this, according to present embodiment, seal pipe external diameter is little, rated power big (more than 3kW) and pass through low-voltage
Under light and flow through in the short arc discharge lamp of high current (more than 130mmA), it is true in the way of meeting above-mentioned formula (1)～(3)
Determine the thickness of metal forming.
In addition, for becket, glass component, it is also possible to be formed as structure in addition, shape.
Embodiment
Below, the discharge lamp of embodiment is illustrated.Here, changing the thickness of metal forming and checking whether that generation is split
Stricture of vagina.
In the short arc discharge lamp of embodiment, it is defined as：Seal pipe external diameter is 27mm, and sealing tube thickness is 3.5mm, round
The external diameter of column outside glass part is 20mm, and the piece number of metal forming is 5mm, and width is 10mm.And be defined as：Rated power is
4.5kW, current value are 155mA.
Also, the thickness of metal forming is set as 0.06mm, 0.05mm, the lamp for carrying out 1000 hours is persistently lighted, by heat
Galvanic couple is measured to temperature, on the other hand, thermal stress is calculated by the emulation of computer, and checks whether that generation is split
Stricture of vagina.As a result, as shown in table 1 below.
【Table 1】
As shown in table 1, in 3.5kW and 4.5kW, thermal stress all reaches 1.20 × 108Below Pa, in the thickness of metal forming
For both 0.06mm and 0.05mm when all do not crack.
On the other hand, as comparative example, same experiment is carried out for the discharge lamp of 0.033mm to the thickness of metal forming, is counted
Calculate thermal stress and check whether to crack.But, change ignition condition to be tested.
As a result, going above 1.20 × 10 in thermal stress8During Pa, crackle is generated.Like this, can be clear and definite, lead to
Crossing makes the thickness of metal forming be thickness appropriate than ever, is not adopting double-layer sealing structure, seal pipe external diameter little and in low electricity
Pressure is flow through in the short arc discharge lamp of high current, will not crack.
With regard to the present invention, can be in the case of without departing from the intent and scope of the present invention defined by the appended claims
Carry out various changes, displacement and substitute.Additionally, in the present invention, the particular implementation being not limited to described in description
Technique, device, manufacture, works, means, method and steps.To those skilled in the art, public affairs of the invention
Open, alternatively it is conceivable to which the same function of the risen function of embodiment of recording with here or substantial is substantially played in derivation
Play device, means and the method for equal effect and effect.Thus, it is intended to appended claims are included in into such dress
Put, in means and method.
The application is that application is advocated based on Japanese publication (Patent 2013-084929, the application of on April 15th, 2013)
The application of priority, comprising basis application specification, drawings and the claims disclosure by reference to mode drawn
Enter in whole the application.
Label declaration
10 discharge lamps
17B electrode support bars
19B lead rods (are electrically connected and take over the baton)
23 inner metal rings (endless member)
25 outside beckets (endless member)
26 outside glass parts (glass component)
27 metal formings
60 seal pipes
Claims (1)
1. a kind of short arc discharge lamp, it is characterised in that the short arc discharge lamp has：
Electrode support bar, which is arranged in the seal pipe being integrally formed with luminous tube, and the electrode in the luminous tube is carried out
Support；
It is electrically connected and takes over the baton, which is electrically connected with external power source；
Glass component, which is inserted with the electrode support bar and described being electrically connected is taken over the baton, and deposition is in the seal pipe；
Multiple belt metal foils, they extend along the outer surface of the glass component, and along the circumference of the glass component
To be configured at equal intervals；And
A pair of endless members, they weld the belt metal foil in outer peripheral face, by the belt metal foil and the electrode
Support rod and the electrical connection of taking over the baton that is electrically connected,
Rated power is more than 3kW, and the current value in stably lighting is more than 130A, and the inclosure amount of mercury in the luminous tube is
Below 7mg/cc,
The thickness of the belt metal foil is determined in the way of meeting following formula,
σ=7.54 × 105T-6 × 107
T=1.92 (I/nwd)+98.9
σ≤1.20×108
Wherein, σ (Pa) be from the periphery of the endless member towards the inner surface of the seal pipe effect thermal stress, T (DEG C)
For the hull-skin temperature of the seal pipe of the radial outside of the endless member, I (A) is the current value in stably lighting, and n is described
The piece number of belt metal foil, w (mm) are the width of the belt metal foil, and d (mm) is the thickness of the belt metal foil,
Determined in the way of meeting following formula lamp stably light in the seal pipe hull-skin temperature,
150≤T≤800,
The external diameter L (mm) of the seal pipe is determined in the way of meeting following formula,
I/L≥5。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013084929 | 2013-04-15 | ||
| JP2013-084929 | 2013-04-15 | ||
| PCT/IB2014/000524 WO2014170734A1 (en) | 2013-04-15 | 2014-04-11 | Discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105122423A CN105122423A (en) | 2015-12-02 |
| CN105122423B true CN105122423B (en) | 2017-03-29 |
Family
ID=51730875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480021153.2A Active CN105122423B (en) | 2013-04-15 | 2014-04-11 | Short arc discharge lamp |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6371275B2 (en) |
| KR (1) | KR102190649B1 (en) |
| CN (1) | CN105122423B (en) |
| TW (1) | TWI608518B (en) |
| WO (1) | WO2014170734A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016207482A (en) * | 2015-04-23 | 2016-12-08 | 岩崎電気株式会社 | Short arc type discharge lamp |
| JP7158097B2 (en) * | 2018-05-10 | 2022-10-21 | 株式会社オーク製作所 | Discharge lamp and method for manufacturing discharge lamp |
| JP7210269B2 (en) * | 2018-12-26 | 2023-01-23 | 株式会社オーク製作所 | Discharge lamps and lighting devices |
| JP7175228B2 (en) * | 2019-03-27 | 2022-11-18 | 株式会社オーク製作所 | Discharge lamp and manufacturing method thereof |
| CN115148576A (en) * | 2022-08-05 | 2022-10-04 | 株式会社优美科思 | Foil sealed short arc mercury lamp |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003257364A (en) * | 2002-03-05 | 2003-09-12 | Ushio Inc | Short arc mercury lamp |
| JP4182900B2 (en) * | 2004-02-27 | 2008-11-19 | ウシオ電機株式会社 | High pressure discharge lamp |
| JP5047483B2 (en) * | 2005-09-27 | 2012-10-10 | 株式会社オーク製作所 | Short arc discharge lamp sealing structure |
| JP4963821B2 (en) * | 2005-10-18 | 2012-06-27 | 株式会社オーク製作所 | Sealing structure of discharge lamp |
| JP5072665B2 (en) * | 2008-03-13 | 2012-11-14 | 株式会社オーク製作所 | Sealing structure of short arc type discharge lamp |
| JP2009238671A (en) * | 2008-03-28 | 2009-10-15 | Orc Mfg Co Ltd | Short arc type discharge lamp |
| JP2012174585A (en) * | 2011-02-23 | 2012-09-10 | Koto Electric Co Ltd | Metal halide lamp |
| JP5765625B2 (en) * | 2011-08-25 | 2015-08-19 | ウシオ電機株式会社 | Long arc type discharge lamp |
-
2014
- 2014-04-09 TW TW103112962A patent/TWI608518B/en active
- 2014-04-11 CN CN201480021153.2A patent/CN105122423B/en active Active
- 2014-04-11 KR KR1020157027299A patent/KR102190649B1/en active Active
- 2014-04-11 WO PCT/IB2014/000524 patent/WO2014170734A1/en active Application Filing
- 2014-04-11 JP JP2015512191A patent/JP6371275B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2014170734A1 (en) | 2017-02-16 |
| TW201503219A (en) | 2015-01-16 |
| TWI608518B (en) | 2017-12-11 |
| KR102190649B1 (en) | 2020-12-14 |
| KR20150140665A (en) | 2015-12-16 |
| CN105122423A (en) | 2015-12-02 |
| WO2014170734A1 (en) | 2014-10-23 |
| JP6371275B2 (en) | 2018-08-08 |
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