CN102254781A - Superhigh voltage mercury lamp - Google Patents
Superhigh voltage mercury lamp Download PDFInfo
- Publication number
- CN102254781A CN102254781A CN2011101308514A CN201110130851A CN102254781A CN 102254781 A CN102254781 A CN 102254781A CN 2011101308514 A CN2011101308514 A CN 2011101308514A CN 201110130851 A CN201110130851 A CN 201110130851A CN 102254781 A CN102254781 A CN 102254781A
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- China
- Prior art keywords
- cement
- mercury lamp
- pressure mercury
- ultrahigh pressure
- quartz bulb
- Prior art date
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Abstract
The invention provides a superhigh voltage mercury lamp capable of suppressing crack formation in a quartz bulb. The crack is generated by filling a binding agent via two steps in alignment, wherein a light emitting pipe is fixed on a reflecting glass, and in lamp cap installation, wherein the lamp cap is fixed. The superhigh voltage mercury lamp is characterized in that in the superhigh voltage mercury lamp, a light emitting pipe using the quartz bulb is fixed on a neck part of the reflecting glass through first filling of the binding agent; moreover, the lamp cap is fixed on the edge part of the neck part of the light emitting pipe through the second filling of the binding agent; and a coil is arranged on the outer peripheral face of the quartz bulb and on a certain length in the axial direction around the boundary of a first binding agent and a second binding agent.
Description
Technical field
The present invention relates to a kind of ultrahigh pressure mercury lamp, it is as the light source of projection arrangement.
Background technology
Fig. 7 is the drawing of the ultrahigh pressure mercury lamp 200 of routine.Conventional ultrahigh pressure mercury lamp 200 is equipped with speculum 203, wherein forms the face as concave mirror on the inboard.On the outer surface at the position corresponding, form columniform outstanding part, i.e. neck 203b with the bottom of the concave mirror of speculum 203.The luminous tube 202 of ultrahigh pressure mercury lamp 200 has the profile of column, wherein the edge of luminous tube 202 passes neck 203b from the bottom of speculum 203, and luminous tube 202 is fixed together by the cement 218 that is filled in the space in the inwall with lamp holder 215.On the opening portion 203a of speculum 203, embed front surface glass 219 (for example referring to patent documentation 1) is arranged.The document of prior art
Patent documentation
Patent documentation 1:JP2004-349194
Summary of the invention
Pass through the problem to be solved in the present invention
As described above, the luminous tube 202 of ultrahigh pressure mercury lamp 200 has the profile of column, wherein the edge of luminous tube 202 passes neck 203b from the bottom of speculum 203, and luminous tube 202 is fixed together by the cement in the space in the inwall that is filled in neck 203b 218 with lamp holder 215.In this case, luminous tube 202 and lamp holder 215 are implemented by fixing minute two parts ground of cement 218.At first, after being welded to molybdenum foil on the quartz bulb, be installed in luminous tube 202 in the speculum 203 during, carry out first fixing (under the situation of orientation) by cement 218.In addition, fixedly carrying out fixing (installing under the situation of lamp holder) during the lamp holder 215 by second of cement 218.
Above-described first cement is identical with second cement, 218 types, yet the problem that exists is, when inserting second cement 218 in the process that lamp holder is being installed and in stove, drying, because deviation of uniformity characteristic or the like (particle diameter, distribution or the like) or the like is the linear expansion coefficient difference then, and what can occur is, around the border between first cement and second cement 218, shear action forms the crack to quartz bulb and on quartz bulb.
What can infer in addition is that outside the manufacturing process of ultrahigh pressure mercury lamp 200, for example when turning on and off lamp, around the border between first cement and second cement 218, thermal stress (shearing force) affacts on the quartz bulb.
Implement the present invention, so that address the above problem, and the invention provides a kind of ultrahigh pressure mercury lamp, wherein can be suppressed at and form the crack in the quartz bulb, this crack causes and (promptly inserts when the orientation owing to insert cement with dividing two parts, wherein luminous tube is fixed on the speculum, and when lamp holder is installed, inserts, wherein fixing lamp holder).
The means that are used to deal with problems
A kind of ultrahigh pressure mercury lamp according to the present invention is characterised in that, in ultrahigh pressure mercury lamp, the luminous tube that wherein uses quartz bulb is inserted by first of cement on the neck of speculum and is fixed, and on the marginal portion of the neck of this external luminous tube, lamp holder is inserted by second of cement and is fixed, around the border on the outer shroud side face of quartz bulb between first cement and second cement in the axial direction really measured length be provided with coil.
A kind of ultrahigh pressure mercury lamp according to the present invention is characterised in that, uses release coil as the coil that is used to improve starting capability, and this release coil extends along the outer surface of related ultrahigh pressure mercury lamp.
The invention effect
In ultrahigh pressure mercury lamp according to the present invention, can by around the border between first cement and second cement on the outer shroud side face of quartz bulb in the axial direction really measured length be provided with coil and be suppressed at the crack that forms quartz bulb around the border between first cement and second cement.
Description of drawings
Fig. 1 is that the figure of form of implementation 1 is shown and is to draw that it shows following state: wherein by use cement 18a luminous tube 2 is fixed on the speculum 3 in ultrahigh pressure mercury lamp 100.
Fig. 2 is that the figure of form of implementation 1 is shown and is to draw that it shows following state: wherein by use cement 18b lamp holder 15 is fixed on the luminous tube 2 in ultrahigh pressure mercury lamp 100.
Fig. 3 is the figure that wherein A of Fig. 2 is partly amplified.
Fig. 4 shows the figure of form of implementation 1 and shows cement 18a and the figure of the boundary face of cement 18b.
Fig. 5 shows the figure of form of implementation 1 and shows the figure in the quartz bulb crack around the boundary face of cement 18a and cement 18b.
Fig. 6 shows the figure of form of implementation 1 and is the sectional view of notion, and it shows ultrahigh pressure mercury lamp 100, and wherein the outer shroud at quartz bulb is provided with coil 40 around the boundary face at cement 18a and cement 18b on week.
Fig. 7 draws, and it shows conventional ultrahigh pressure mercury lamp 200.
Embodiment
Form of implementation 1
Now, under the situation of ultrahigh pressure mercury lamp, the welding of quartz bulb and Mo (molybdenum) paper tinsel, and the inside at speculum fixes luminous tube and lamp holder by cement during orientation.Should be undertaken by the two parts that fixedly are divided into of cement, and or rather, be divided into and be fixed on luminous tube on the speculum and fixing lamp holder.Phenomenon in this appearance is to form the crack around the boundary face of first cement and second cement on quartz bulb.
At first explain the phenomenon in above-mentioned formation crack.Fig. 1 is that the figure of form of implementation 1 is shown and is to draw that it shows following state: wherein by use cement 18a luminous tube 2 is fixed on the speculum 3 in ultrahigh pressure mercury lamp 100.Ultrahigh pressure mercury lamp 100 comprises luminous tube 2 in the inside of speculum 3 (being paraboloidal in the example at Fig. 1).Luminous tube 2 is fixed on the neck 3b of speculum 3 by cement 18a.It is fixing in following state: wherein the axis of luminous tube 2 is with consistent with the axis of the opening portion 3a of speculum 3 and neck 3b connection, and the center of luminous component 11 becomes the focus of speculum 3.
Because luminous tube 2 has general common structure, so saved concrete explanation.Luminous tube 2 is equipped with paired electrode system (also not shown in the accompanying drawings).Electrode system comprises electrode, sheet metal, connection line or the like.Provided mercury and inert gas (for example argon gas) in the inside of luminous tube 2 (quartz bulb), this is also not shown in the accompanying drawings.In addition, two of luminous tube 2 marginal portions seal by the heating and the fusion of quartz bulb.
Fig. 2 is that the figure of form of implementation 1 is shown and is to draw that it shows following state: wherein by use cement 18b lamp holder 15 is fixed on the luminous tube 2 in ultrahigh pressure mercury lamp 100.Then, lamp holder 15 is fixed on the lateral edge portions of neck 3b of speculum 3 by cement 18b.Cement 18b is identical with cement 18a, by cement 18a luminous tube 2 is fixed on the neck 3b of speculum 3.
Fig. 3 is the figure that wherein A of Fig. 2 is partly amplified.In the process of fixing lamp holder 15, when the second cement 18b is received in and in stove when dry, though cement 18a is identical with cement 18b type, yet linear expansion coefficient difference owing to the deviation of uniformity characteristic or the like, and what can infer is, border (boundary face) between cement 18a and cement 18b on every side, shear action is to quartz bulb.
If compare the linear expansion coefficient of cement 18a, 18b and quartz bulb, then the linear expansion coefficient Senior Two of cement 18a, 18b is ten times.Therefore, when dry cement 18a, 18b and when turning on and off, owing to the variation of the volume of cement 18a, 18b gives the quartz bulb stress application (because about the volume of the inboard of the neck 3b of speculum 3, difference based on linear expansion coefficient, change owing to temperature than cement 18a, 18b, so cement 18a, 18b are for example during drying towards axially or towards the inboard extending littlelyr.)
Therefore, what can infer is, in the process of fixing lamp holder 15, when inserting the second cement 18b and in stove when dry, though cement 18a and cement 18b are the cements of same type, yet because the deviation of uniformity characteristic or the like, linear expansion coefficient is also different, and around the border (boundary face) between cement 18a and the cement 18b, shear action is to quartz bulb.
As shown in Figure 3, around the border (boundary face) between cement 18a and the cement 18b, shear action is to quartz bulb and form crack 30.
Fig. 4 and Fig. 5 show the figure of form of implementation 1, and wherein Fig. 4 shows the figure of the boundary face of cement 18a and cement 18b, and Fig. 5 shows the figure in the crack of the quartz bulb around the boundary face of cement 18a and cement 18b.In fact, analyze and observed product (ultrahigh pressure mercury lamp 100), wherein as shown in Figure 4, formed crack (referring to Fig. 5) on the surface at quartz bulb around the cement boundary face.
Fig. 6 shows the figure of form of implementation 1 and is the sectional view of notion, and it shows ultrahigh pressure mercury lamp 100, wherein is provided with coil 40 on the outer shroud side face of quartz bulb around the boundary face of cement 18a and cement 18b.
Under ultrahigh pressure mercury lamp 100 situations of current form of implementation, in order to prevent from as mentioned above to form like that the crack around the boundary face of cement on the surface of quartz bulb, the border (boundary face) of the cement 18b on the lateral edge portions that is being used for luminous tube 2 is fixed on cement 18a and the neck 3b that is used for lamp holder 15 is fixed on speculum 3 on the neck 3b of speculum 3 on the outer shroud side face of luminous tube 2 (quartz bulb) is provided with coil 40 on every side.
For example be used to improve starting capability and use release coil as coil 40, this release coil extends and has an electromotive force identical with the high-voltage feedback power circuit along the outer surface of ultrahigh pressure mercury lamp 100.Yet, also can use the coil that is different from release coil.
Release coil for example can be made up by the line style device, and this device is made of the iron and the evanohm of the diameter with about 0.4mm.
Because it is such as mentioned above, coil 40 is to be used for that the ground setting is extended as heart in cement 18a and the border (boundary face) that is used for lamp holder 15 is fixed on the cement 18b on the lateral edge portions of neck 3b of speculum 3 that luminous tube 2 is fixed on the neck 3b of speculum 3 towards axial both sides on the length of determining, therefore weakened the stress that affacts on the quartz bulb, and the border (boundary face) that can be suppressed at cement 18a and cement 18b forms the crack of quartz bulb on every side.
Reference numeral
2 luminous tubes
3 speculums
The 3a opening portion
The 3b neck
20 quartz bulbs
30 cracks
40 coils
100 ultrahigh pressure mercury lamps
200 ultrahigh pressure mercury lamps
202 luminous tubes
203 speculums
The 203a opening portion
The 203b neck
215 lamp holders
218 cements
219 front surface glass
Claims (2)
1. ultrahigh pressure mercury lamp, it is characterized in that, in ultrahigh pressure mercury lamp, wherein use the luminous tube of quartz bulb to insert on the neck that is fixed on speculum by first of cement, and on the marginal portion of the described neck of this external described luminous tube, lamp holder is inserted fixing by second of cement
Around the border on the outer shroud side face of described quartz bulb between described first cement and described second cement in the axial direction really measured length be provided with coil.
2. ultrahigh pressure mercury lamp according to claim 1 is characterized in that, as the described coil that improves starting capability, described release coil extends along the outer surface of related ultrahigh pressure mercury lamp with release coil.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-114512 | 2010-05-18 | ||
| JP2010114512A JP2011243416A (en) | 2010-05-18 | 2010-05-18 | Ultrahigh-pressure mercury lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102254781A true CN102254781A (en) | 2011-11-23 |
Family
ID=44981962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101308514A Pending CN102254781A (en) | 2010-05-18 | 2011-05-17 | Superhigh voltage mercury lamp |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2011243416A (en) |
| CN (1) | CN102254781A (en) |
-
2010
- 2010-05-18 JP JP2010114512A patent/JP2011243416A/en active Pending
-
2011
- 2011-05-17 CN CN2011101308514A patent/CN102254781A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011243416A (en) | 2011-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111123 |