CN108807134A - Discharge lamp - Google Patents
Discharge lamp Download PDFInfo
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- CN108807134A CN108807134A CN201810156640.XA CN201810156640A CN108807134A CN 108807134 A CN108807134 A CN 108807134A CN 201810156640 A CN201810156640 A CN 201810156640A CN 108807134 A CN108807134 A CN 108807134A
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- Prior art keywords
- halide
- discharge
- discharge lamp
- indium
- light
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/827—Metal halide arc lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
Abstract
The present invention provides a kind of discharge lamp, even if can improve luminous efficiency if being lighted by low electric power, inhibits the rising of tube voltage, extends the service life, and irradiate the light of desired color.Including：Illumination region, inside have the discharge space for being sealed with discharge medium, and the discharge medium includes metal halide and inert gas, and does not include mercury substantially；And a pair of electrodes, project to the inside of the discharge space, and opposite configuration spaced by a predetermined distance.The metal halide includes the halide of scandium, the halide of sodium, the halide of indium and the halide of zinc.In the case where the weight of the halide of the scandium to be set as to Ms, the weight of the halide of the sodium be set as Mn, 0.8≤Mn/Ms≤1.3.The halide of the indium is 0.3wt% or more relative to the weight ratio of the metal halide and is 2.0wt% or less.
Description
Technical field
Embodiments of the present invention are related to a kind of discharge lamp.
Background technology
Existing such as discharge lamp comprising：Illumination region, inside have the discharge space for being sealed with discharge medium；And
A pair of electrodes projects to the inside of discharge space, and opposite configuration spaced by a predetermined distance.
In the past, discharge medium included metal halide, inert gas and mercury.But in recent years, according to environmental protection
Viewpoint does not include mercury in discharge medium.
In addition, according to the requirement of power saving, for example, need stablize light when, by 22W (watt) or more and for 28W (watt) with
Under the discharge lamp lighted of electric power.But if making discharge tube lighting using 28W (watt) electric power below, with utilization 35W (watt)
The case where electric power of left and right makes discharge tube lighting is compared, and the temperature of illumination region reduces.Accordingly, there exist following problems：By 28W (watt)
Compared with the discharge lamp lighted by the electric power of 35W (watt) left and right, luminous efficiency reduces the discharge lamp that electric power below is lighted.
In said case, as long as the ingredient ratio to metal halide is adjusted, it will be able to improve luminous efficiency.Example
Such as, as long as increasing the ratio of the halide of scandium contained in metal halide, it will be able to improve luminous efficiency.But if only increase
Add the ratio of the halide of scandium contained in metal halide, then tube voltage can increase, and easy to produce flicker.
In addition, according to the ingredient of metal halide ratio, free-iodine is also possible to increase and generate so-called crack of foil
(foil leak) causes the lost of life or color to be not in desired range.
Therefore, it is intended that developing such as discharge lamp, even if this discharge lamp can improve luminous effect if being lighted by low electric power
Rate inhibits the rising of tube voltage, extends the service life, and irradiate the light of desired color.
Existing technical literature
Patent document
1 Japanese Patent Laid 2013-511117 bulletins of patent document
Invention content
Problem to be solved by the invention
Problem to be solved by this invention is to provide such as discharge lamp, even if this discharge lamp can if being lighted by low electric power
Luminous efficiency is improved, the rising of tube voltage is inhibited, extends the service life, and irradiate the light of desired color.
Technical means to solve problem
The discharge lamp of embodiment by 22W (watt) or more and can be 28W (watt) electric power points below in stable light
It is bright.Discharge lamp includes：Illumination region, it includes metal halogen that inside, which has the discharge space for being sealed with discharge medium, the discharge medium,
Compound and inert gas, and do not include mercury substantially；And a pair of electrodes, project to the inside of the discharge space, and every
With opening predetermined distance opposite configuration.The metal halide includes the halide of scandium, the halide of sodium, the halide of indium and zinc
Halide.In the case where the weight of the halide of the scandium to be set as to Ms, the weight of the halide of the sodium be set as Mn,
0.8≤Mn/Ms≤1.3.The halide of the indium is 0.3wt% or more relative to the weight ratio of the metal halide and is
2.0wt% or less.
The effect of invention
According to the embodiment of the present invention, it is capable of providing such as discharge lamp, even if this discharge lamp can if being lighted by low electric power
Luminous efficiency is enough improved, the rising of tube voltage is inhibited, extends the service life, and irradiate the light of desired color.
Description of the drawings
Fig. 1 is the schematic diagram for the discharge lamp for illustrating present embodiment.
The explanation of symbol
1：Inner tube；
2：Metal halide；
3：Electrode mount；
4：Sleeve；
5：Outer tube；
11：Illumination region；
12：Sealing；
13：Boundary portion；
14：Cylindrical portion；
31：Metal foil；
32：Electrode；
33：Coil；
34：Lead；
35：Support line；
61：Main part；
71：Metal tape；
72：Installation fitting；
81：Bottom terminals；
82：Side terminal；
100：Discharge lamp；
101：Burner；
102：Lamp holder；
111：Discharge space.
Specific implementation mode
Hereinafter, carrying out illustrated embodiment with reference to attached drawing.
The discharge lamp of embodiments of the present invention can for example be set as being used in the high-intensity discharge (High of car headlamp
Intensity Discharge, HID) lamp.In addition, in the case where discharge lamp is the HID lamp for being used in car headlamp, energy
It is enough set as carrying out the discharge lamp that so-called level is lighted.
The purposes of the discharge lamp of embodiments of the present invention is not limited to car headlamp, herein, as an example, enumerates
The case where discharge lamp is the HID lamp for being used in car headlamp illustrates as an example.
Fig. 1 is the schematic diagram for the discharge lamp 100 for illustrating present embodiment.
Furthermore in Fig. 1, in the case where discharge lamp 100 is installed on automobile, front end will be set as the direction in front
Side will be set as rear end side as the direction at rear, will be set as upper end side as the direction of top, will be set as the direction of lower section
Lower end side.
As shown in Figure 1, being provided with burner (burner) 101 and lamp holder (socket) 102 in discharge lamp 100.
Outer tube 5, inner tube 1, electrode mount (mount) 3, support line (support are provided in burner 101
Wire) 35, sleeve (sleeve) 4 and metal tape 71.
Outer tube 5 is set to the outside of inner tube 1 with 1 same core of inner tube.That is, burner 101 has by outer tube 5 and 1 shape of inner tube
At dual pipe construction.Outer tube 5 engages (welding) near the cylindrical portion 14 of inner tube 1.
It is formed by enclosure space between inner tube 1 and outer tube 5 and is sealed with gas.Enclosed gas can be set as can be into
The gas of row dielectric barrier discharge (dielectric barrier discharge).Enclosed gas can for example be set as selecting
From neon, argon, xenon, a kind of gas of nitrogen or the mixed gas of these gases.The enclosed pressure of gas is for example at room temperature (25 DEG C)
Under, 0.3atm can be set as.Furthermore the enclosed pressure of gas is more preferably set as 0.1atm or less under room temperature (25 DEG C).
Outer tube 5 is preferably formed by following material, and the material has the heat close with the coefficient of thermal expansion of the material of inner tube 1
The coefficient of expansion, and there is UV protection barrier property.Outer tube 5 is such as can be by the quartz glass added with the oxide titanium, cerium, aluminium
It is formed.
Inner tube 1 includes illumination region 11, sealing 12, boundary portion 13 and cylindrical portion 14.Illumination region 11, sealing 12, boundary
Portion 13 and cylindrical portion 14 can be formed as one.
Inner tube 1 (illumination region 11, sealing 12, boundary portion 13 and cylindrical portion 14) is by the material with translucency and heat resistance
It is formed.Inner tube 1 is such as the formation by quartz glass.
Illumination region 11 has the outer shape of generally oblong body shape.Illumination region 11 is set near the center of inner tube 1.Inner tube
The size (sphere length) of illumination region 11 in 1 axis direction can for example be set as 8mm or so.It is orthogonal with the axis direction of inner tube 1
Direction on the size of illumination region 11 can for example be set as 6mm or so.
Illumination region 11 is internally provided with discharge space 111.The center portion of discharge space 111 is in substantially cylindric.It puts
The both ends part in electric space 111 is in substantially coniform.
It is sealed with discharge medium in discharge space 111.Discharge medium includes metal halide 2 and inert gas.
In addition, in the discharge lamp 100 of present embodiment, according to the viewpoint of environmental protection, discharge medium does not wrap substantially
Containing mercury.Furthermore the case where in the present specification, not only allowing for not including mercury completely " substantially not comprising mercury ", also permits
Perhaps the case where including mercury with impurity levels.For example, in discharge space 111, as long as less than 2mg/cc, then discharge medium can
Including mercury.
Metal halide 2 for example can include the halide of scandium (Sc), the halide of indium (In), sodium (Na) halide,
The halide of zinc (Zn).Such as iodine (I) can be illustrated and be used as halogen.However, it is also possible to carry out generation using bromine (Br) or chlorine (Cl) etc.
For iodine.
Furthermore it will be aftermentioned with the relevant details of the composition of metal halide 2.
Xenon can be for example set as by enclosing to the inert gas of discharge space 111.In addition, other than xenon, additionally it is possible to use
Neon, argon, krypton etc., or use mixed gas made of being combined these gases.
But inert gas is more preferably set as xenon.
Sealing 12 is plate-like, and is individually coupled to the both ends of illumination region 11.Such as it can use and compress sealing
(pinch seal) method forms sealing 12.Furthermore sealing 12 can also be by collapsed seal (shrink seal) method
Formation and cylindrical sealing.Cylindrical portion 14 is engaged in a sealing 12 via boundary portion 13.
Boundary portion 13 and cylindrical portion 14 are engaged in the end of the opposite side in 11 side of illumination region of sealing 12.
Electrode mount 3 is set to the inside of sealing 12.
Electrode mount 3 includes metal foil 31, electrode 32, coil (coil) 33 and lead 34.
Metal foil 31 is set to the inside of sealing 12.Metal foil 31 be engaged in electrode 32 be in 111 side of discharge space
Opposite side end near.
Metal foil 31 is in lamellar, and such as being capable of the formation by molybdenum, Mo Re alloys, tungsten, tungsten-rhenium alloy.
Electrode 32 is linear.The section shape of electrode 32 can for example be set as round.The fineness degree of electrode 32 is (in section shape
In the case of shape is circular, the fineness degree is diameter) it can for example be set as 0.2mm or more and be 0.4mm or less.
Furthermore the fineness degree of electrode 32 can also be not fixed on the extending direction of electrode 32.For example, the thickness of electrode 32
Degree can also be that point side is thicker than base end part side.In addition, the point of electrode 32 can also be spherical in shape.Alternatively, it is also possible to
As direct current lights type, the fineness degree of an electrode is different from the fineness degree of another electrode.
One end of electrode 32 projects in discharge space 111.That is, one end of electrode 32 is set to discharge space 111
Inside, the other end is set to the inside of sealing 12.A pair of electrodes 32 be to separate predetermined distance and toward each other in a manner of
Setting.Distance (interelectrode distance) between the tip of a pair of electrodes 32 can for example be set as 3.4mm or more and be 4.4mm
Below.Another end of electrode 32 is engaged near the end in 11 side of illumination region of metal foil 31.Such as it can pass through
Laser Welding fetches bonding electrodes 32 and metal foil 31.
Electrode 32 is such as being capable of the formation by pure tungsten, Doped Tungsten, tungsten-rhenium alloy.Furthermore electrode 32 can contain thorium, also may be used
Not contain thorium.
Coil 33 is set, to inhibit sealing 12 to generate slight crack (crack).
Coil 33 can for example be formed by the metal wire comprising Doped Tungsten.Coil 33 is set to the inside of sealing 12.Line
Circle 33 is wound in the outside of electrode 32.For example, the line footpath of coil 33 can be set as 30 μm~100 μm or so, coil pitch (coil
Pitch 600% or less can) be set as.
Lead 34 is linear.The section shape of lead 34 can for example be set as round.Lead 34 is such as the shape by molybdenum
At.One end side of lead 34 is engaged near the end of the opposite side in 11 side of illumination region of metal foil 31.It can lead to
It crosses laser welding and comes bonding wire 34 and metal foil 31.Until another end side of lead 34 extends to the outside of inner tube 1.
It is in L-shaped to support line 35, and is engaged in the end of the lead 34 stretched out from the front end side of discharge lamp 100.It can lead to
Laser welding is crossed to engage support line 35 and lead 34.Support line 35 can for example be formed by nickel.
The part of the covering support line 35 of sleeve 4 extended parallel to inner tube 1.Sleeve 4 is for example cylindrical.4, sleeve
It can such as be formed by ceramic (ceramics).
Metal tape 71 is fixed near the end of the rear end side of outer tube 5.
Lamp holder 102 includes main part 61, installation fitting 72, bottom terminals 81 and side terminal 82.
Main part 61 is formed by insulating materials such as resins.The rear end side for being internally provided with lead 34, the branch of main part 61
Support the rear end side of line 35 and the rear end side of sleeve 4.
Installation fitting 72 is set to the end of main part 61.Installation fitting 72 is set to the front end side of main part 61.Installation
Accessory 72 is protruded from main part 61.Installation fitting 72 remains metal tape 71.Metal tape 71 is kept by installation fitting 72, by
This, lamp holder 102 is held in by burner 101.
Bottom terminals 81 are set to the inside of main part 61.Bottom terminals 81 are set to the rear end side of main part 61.Bottom
Terminal 81 is formed by conductive material.Bottom terminals 81 are electrically connected with lead 34.
Side terminal 82 is set to the side wall of main part 61.Side terminal 82 is set to the rear end side of main part 61.Side
Terminal 82 is formed by conductive material.Side terminal 82 is electrically connected with support line 35.
Bottom terminals 81 and side terminal 82 are electrically connected with lighting circuit (not shown).In the case, bottom terminals 81
It is electrically connected with the high-pressure side of lighting circuit.Side terminal 82 is electrically connected with the low-pressure side of lighting circuit.
In the case where discharge lamp 100 is used in car headlamp, discharge lamp 100 is in substantially with central shaft (pipe axis)
Horizontal state, and the mode for supporting line 35 to be located at substantially lower end side (lower section) is mounted.Furthermore make to be pacified along such direction
The discharge lamp 100 of dress is lighted, this is referred to as level and lights.
Herein, according to the requirement of power saving in recent years, it is desirable to be able to the discharge lamp lighted by lower electric power.For example,
Need such as discharge lamp, this discharge lamp stablize light when, by 22W (watt) or more and can be 28W (watt) electric power points below
It is bright.
After making discharge tube lighting using low electric power as described above, make discharge lamp point with the electric power using 35W (watt) left and right
Bright situation is compared, and the temperature of illumination region 11 reduces.If the temperature of illumination region 11 reduces, there are brightness because luminous efficiency reduces
And dimmed problem.
In said case, as long as increasing the ratio of the halide of scandium contained in metal halide 2, it will be able to improve hair
Light efficiency.But if only increasing the ratio of the halide of scandium, tube voltage can increase, and easy to produce flicker.
After the present inventor studies, as a result, it has been found that：As long as making halogen of the weight Mn (μ g) of the halide of sodium relative to scandium
The ratio between weight Ms (μ g) of compound (Mn/Ms) is in prescribed limit, even if can if then discharge lamp 100 is lighted by low electric power
It improves luminous efficiency and inhibits the rising of tube voltage.
Table 1 be the ratio between the weight Ms of halide of the weight Mn for the halide for illustrating sodium relative to scandium (Mn/Ms) with
The table of relationship between luminous efficiency and tube voltage.
[table 1]
| Mn/Ms | 0.7 | 0.8 | 0.9 | 1.1 | 1.3 | 1.5 |
| Luminous efficiency | ○ | ○ | ○ | ○ | ○ | × |
| Tube voltage | × | ○ | ○ | ○ | ○ | ○ |
| Comprehensive judgement | × | ○ | ○ | ○ | ○ | × |
Furthermore in the evaluation of luminous efficiency, 80lm/W (lumens/watt) or more is evaluated as "○", it will be less than 80lm/W
(lumens/watt) is evaluated as "×".
In the evaluation of tube voltage, the situation that tube voltage when starting is 48V or less is evaluated as "○", will be more than 48V
The case where be evaluated as "×".
Stablize application voltage when lighting and be set as 25W (watt) left and right, application voltage when startup is set as 55W (watt) left and right.
In addition, as an example, the halide of scandium is set as scandium iodide (ScI3), the halide of sodium is set as sodium iodide (NaI).
In said case, metal halide 2 includes scandium iodide, sodium iodide, indium iodide and zinc iodide.
In addition, the weight of metal halide 2 is set as 400 μ g.
The material of illumination region 11 is set as quartz glass.
The volume of discharge space 111 is set as 22 μ L.
It encloses to the inert gas of discharge space 111 and is set as xenon, enclosed pressure is set as 12atm.
The diameter of electrode 32 is set as 0.28mm.
According to table 1：As long as being set as 0.8≤Mn/Ms≤1.3, even if then discharge lamp 100 is in stable light, by 22W
It is lighted more than (watt) and for 28W (watt) electric power below, also can improve luminous efficiency and inhibit the rising of tube voltage.
Herein, the valence mumber of sodium iodide is 1 valence, but the valence mumber of scandium iodide is trivalent.Therefore, if increasing the ratio of scandium iodide,
Free-iodine is easy to increase.If free-iodine increases, iodine is easy to react with the material of metal foil 31, to easy to produce and gold
Belong to the associated crack (crack of foil) of the corrosion of foil 31.If easy ting produce crack of foil, the service life of discharge lamp 100 is possible to contract
It is short.
That is, if Mn/Ms becomes smaller, the service life of discharge lamp 100 is possible to shorten.
After the present inventor studies, as a result, it has been found that：As long as increasing the ratio of the halide of indium contained in metal halide 2
Rate, it will be able to inhibit the increase of free-iodine.
The discovery can be illustrated as follows.
The valence mumber of the halide of indium is 1 valence~trivalent.Therefore, indium can become the adsorbent (getter) of free-iodine, so only
Increase the ratio of the halide of indium, it will be able to inhibit the increase of free-iodine.
As long as that is, increasing the ratio of the halide of indium, it will be able to inhibit the generation of crack of foil, and then discharge lamp can be extended
100 service life.
But the discovery obtained according to the present inventor, as long as having defined the ratio for the halide for increasing indium, then
Coloration x and chromaticity y in CIE1931xy chromatic diagrams can be reduced together.In the case, the also reduction degree of clear chromaticity y
Reduction degree bigger than coloration x.
Especially when discharge lamp 100 starts, because the temperature of illumination region 11 is low, low-melting indium can first evaporate,
The light that sends out generated by indium is top dog.If the light that sends out generated by indium is top dog, chromaticity y can further drop
It is low, to irradiate general red light from discharge lamp 100.
As long as that is, increasing the ratio of the halide of indium, the service life will extend, it is likely that being difficult to irradiate desired color
Color light.
According to the purposes of discharge lamp 100, even if on startup, irradiating general red light from discharge lamp 100, also no problem.
But such as in the case where discharge lamp 100 is the HID lamp for being used in car headlamp, preferably on startup and stabilization light
When, the light of white is irradiated from discharge lamp 100.
After the present inventor further studies, as a result, it has been found that：As long as the ratio of the halide of indium is made to be in defined model
In enclosing, it will be able to extend the service life and irradiate the light (such as light of white) of desired color.
Table 2 is weight ratio of the halide relative to metal halide 2 for illustrating indium and light when service life and startup
The table of relationship between color.
[table 2]
| The weight ratio (wt%) of the halide of indium | 0.2 | 0.3 | 0.5 | 1.5 | 1.7 | 2 | 2.2 |
| Service life | × | ○ | ◎ | ◎ | ◎ | ◎ | ◎ |
| The color of light when startup | ◎ | ◎ | ◎ | ◎ | ○ | ○ | × |
| Comprehensive judgement | × | ○ | ◎ | ◎ | ○ | ○ | × |
Furthermore in the evaluation in service life, the case where not generating crack of foil by 3000 hours or more, is evaluated as "○", by 3500
Hour or more the case where not generating crack of foil be evaluated as " ◎ ".
In addition, the color about light when starting, is evaluated as "○", by y's by the situation that the minimum value of y is 0.28 or more
The situation that minimum value is 0.29 or more is evaluated as " ◎ ".Herein, the minimum value of y is in phase until when stablizing when starting
Between, the value of the minimum y when color of light varies over.
Furthermore if having confirmed that, the minimum value of y when starting is 0.28 or more, and the color for stablizing light when lighting is
0.355 < x < 0.400,0.640x+0.130≤y≤0.64x+0.150.
Furthermore x is that the coloration x, y in CIE1931xy chromatic diagrams are chromaticity ies.
In addition, as an example, the halide of indium is set as indium iodide (InI).
The case where other evaluation conditions are with table 1 is identical.
According to table 2：As long as the weight ratio of the halide of indium is set as 0.3wt% or more and for 2.0wt% hereinafter, as long as
Even if the light of white can be irradiated if on startup.
Even if in addition, as long as the weight ratio of the halide of indium is set as 0.5wt% or more and for 1.5wt% hereinafter, as long as
When startup, the light of white also can be more easily irradiated.
It is described as described above, if 0.8≤Mn/Ms≤1.3 are set as, and by the halide of indium relative to metal halide
The weight ratio of object 2 be set as 0.3wt% or more and for 2.0wt% hereinafter, can if then even if discharge lamp 100 is lighted by low electric power
Luminous efficiency is improved, inhibits the rising of tube voltage, extend the service life, and irradiates light (such as the white of desired color
Light).
As long as in addition, the halide of indium is set as 0.5wt% or more relative to the weight ratio of metal halide 2 and is
1.5wt% is hereinafter, the light (such as light of white) of desired color will be irradiated more easily.
More than, several embodiments of the present invention are illustrated, but these embodiments are to prompt as an example
Embodiment, it is not intended to the range of invention is defined.These novel embodiments can be with various other ways reality
It applies, various omissions, substitutions and changes etc. can be carried out in the range of not departing from invention objective.These embodiments or its deformation
Example is contained in the range or objective of invention, and is contained in the range of the invention described in the claims and its equalization.In addition, institute
Stating each embodiment can implement in combination with one another.
Claims (4)
1. a kind of discharge lamp can be lighted, the electric discharge in stable light by 22 watts or more and for 28 watts of electric power below
Lamp is characterized in that：
Illumination region, it includes metal halide and inertia that inside, which has the discharge space for being sealed with discharge medium, the discharge medium,
Gas, and do not include mercury substantially；And
A pair of electrodes projects to the inside of the discharge space, and opposite configuration spaced by a predetermined distance,
The metal halide includes the halide of scandium, the halide of sodium, the halide of indium and the halide of zinc,
In the case where the weight of the halide of the scandium to be set as to Ms, the weight of the halide of the sodium be set as Mn, 0.8≤
Mn/Ms≤1.3,
The halide of the indium is 0.3wt% or more relative to the weight ratio of the metal halide and is 2.0wt% or less.
2. discharge lamp according to claim 1, it is characterised in that：
The halide of the indium is 0.5wt% or more relative to the weight ratio of the metal halide and is 1.5wt% or less.
3. discharge lamp according to claim 1 or 2, it is characterised in that：
In stable light, the light for the coloration for meeting the following formula can be irradiated,
0.355 < x < 0.400,
0.640x+0.130≤y≤0.64x+0.150
Wherein, it is chromaticity y in CIE1931xy chromatic diagrams that x, which is coloration x, y in CIE1931xy chromatic diagrams,.
4. discharge lamp according to claim 1 or 2, it is characterised in that：
On startup, the light for the coloration for meeting the following formula can be irradiated,
y≥0.28
Wherein, y is the chromaticity y in CIE1931xy chromatic diagrams.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017087151A JP6850434B2 (en) | 2017-04-26 | 2017-04-26 | Discharge lamp |
| JP2017-087151 | 2017-04-26 |
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| Publication Number | Publication Date |
|---|---|
| CN108807134A true CN108807134A (en) | 2018-11-13 |
| CN108807134B CN108807134B (en) | 2021-05-28 |
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ID=64094684
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810156640.XA Active CN108807134B (en) | 2017-04-26 | 2018-02-24 | Discharge lamp with a discharge lamp |
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|---|---|
| JP (1) | JP6850434B2 (en) |
| CN (1) | CN108807134B (en) |
| TW (1) | TWI728234B (en) |
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| CN105810551A (en) * | 2014-12-31 | 2016-07-27 | 广东雪莱特光电科技股份有限公司 | Mercury-free high voltage gas discharge lamp |
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2017
- 2017-04-26 JP JP2017087151A patent/JP6850434B2/en active Active
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2018
- 2018-02-24 CN CN201810156640.XA patent/CN108807134B/en active Active
- 2018-03-12 TW TW107108245A patent/TWI728234B/en active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685469A (en) * | 2002-09-10 | 2005-10-19 | 皇家飞利浦电子股份有限公司 | High-pressure discharge lamp with improved color point stability and high luminous efficacy |
| US20050156529A1 (en) * | 2003-12-22 | 2005-07-21 | Koito Manufacturing Co., Ltd. | Mercury free arc tube for a discharge lamp |
| CN102687235A (en) * | 2009-11-12 | 2012-09-19 | 欧司朗股份有限公司 | Mercury-free high-pressure discharge lamp with a reduced amount of zinc halide |
| JP2011154876A (en) * | 2010-01-27 | 2011-08-11 | Osram Melco Toshiba Lighting Kk | High-pressure discharge lamp and lighting system |
| EP2649637A1 (en) * | 2010-12-10 | 2013-10-16 | OSRAM GmbH | High-pressure discharge lamp |
| JP2016181381A (en) * | 2015-03-24 | 2016-10-13 | 東芝ライテック株式会社 | Discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI728234B (en) | 2021-05-21 |
| JP6850434B2 (en) | 2021-03-31 |
| CN108807134B (en) | 2021-05-28 |
| JP2018185976A (en) | 2018-11-22 |
| TW201839796A (en) | 2018-11-01 |
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