JP3122514B2 - Discharge lamp device and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp device having an arc tube disposed in front of a base, and more particularly to a discharge lamp device provided with an ultraviolet shielding glove surrounding the arc tube.

[0002]

2. Description of the Related Art FIG. 15 shows a conventional discharge lamp device of this kind, in which a pair of lead supports 2, 3 acting as a current path protrudes forward of an insulating base 1. An arc tube 4 is supported. An ultraviolet shielding glove 5 surrounding the arc tube 4 is fixed and held on the front surface of the base 1 so as to cut off ultraviolet rays generated from the arc tube 4 in a wavelength range harmful to the human body. The glove 5 is a quartz glass tube whose front end is closed and coated with an ultraviolet shielding film on the inside or outside thereof.
In order to securely fix and hold the disk, a ceramic disk 6 is fixed to the front surface of the base 1 by caulking or the like, and the globe 5 is bonded to the disk 6 with an inorganic adhesive 7. That is, many of the lamp component members are made of a material in which Si evaporates as low-molecular siloxane when subjected to high heat, and this low-molecular siloxane is oxidized around the high-temperature arc tube, and SiO It becomes ₂ and adheres to the surface of the arc tube, causing a significant decrease in the amount of light. Therefore, the arc tube 4 which becomes high heat is surrounded and sealed by gloves 5 so that low molecular siloxane floating in the lamp room space cannot approach the vicinity of the arc tube which becomes a high temperature atmosphere suitable for oxidation. SiO _{2 on the} surface
Is prevented from being turned out and clouded.

[0003]

However, in the above-described discharge lamp device, the temperature of the arc tube 4 becomes high, so that the inorganic adhesive 7 loaded at the joint between the globe 5 and the disk 6 changes over time. There is a possibility that the gloves 5 may deteriorate due to deterioration in bonding strength and fall off. In addition, inorganic adhesive 7
Is deteriorated, the degree of sealing at the joint between the globe 5 and the disk 6 is reduced, and low-molecular siloxane may enter the globe 5 and SiO ₂ may be deposited on the surface of the arc tube.

In the above-described discharge lamp device, the ultraviolet shielding globe 5 is fixed and held by using the inorganic adhesive 7, so that it is heated for several tens of hours in a high-temperature furnace to cure the inorganic adhesive. There is also a problem that it has to be dried and it takes time to manufacture the discharge lamp device.
The present invention has been made in view of the problems of the prior art,
The purpose is to ensure that the ultraviolet shielding glove is fixed and held even during long-term use, and that SiO ₂
It is an object of the present invention to provide a discharge lamp device which can be manufactured in a short time without being bent out and a method for manufacturing the same.

[0005]

In order to achieve the above object, in the discharge lamp device according to the first aspect of the present invention, one lead support acting as a current path extends in front of the insulating base, and the insulating lamp has an insulating property. At the approximate center of the base, an engagement hole is formed in which the rear end of the arc tube can be engaged, and an arc tube whose front and rear ends are supported by the lead support and the engagement hole is disposed in the front-rear direction. An insulating disk having an arc tube and a lead support penetrated is arranged and fixed on the front surface of the base, and an arc tube and a lead support disposed in front of the disk are closed at the front end with a rear end opening fixed to the disk. What is claimed is: 1. A discharge lamp device surrounded by a cylindrical glass glove for shielding ultraviolet light, wherein said insulating disk is made of glass, and The rear end opening of the glove for welding and the engaging portion of the disk are welded and sealed, and the lead support through hole of the insulating disk is sealed by welding the periphery of the through hole, and the insulating disk is sealed. The arc tube through-hole is sealed by welding the rear end of the arc tube to the periphery of the arc tube through-hole to seal an inert gas in the ultraviolet shielding glove.

In the method for manufacturing a discharge lamp device according to the present invention, the rear end of the arc tube is welded to the arc tube through hole of the insulating disk made of glass, and the lead support is inserted into the lead support through hole. The arc tube, the lead support and the insulating disk are integrated by connecting the front end of the arc tube to the front end of the arc tube, and then the glass ultraviolet shielding glove is welded and fixed to the insulating disk. After surrounding the arc tube and the lead support extending to the front of the disk, and then filling the glove with an inert gas through the lead support through-hole, the periphery of the lead support through-hole is welded and the lead support is inserted into the disk. And the disk and insulating base are finally fixed and integrated. .

According to a third aspect of the present invention, there is provided an arc tube in which a pair of long and short lead supports serving as current paths extend in front of the insulating base, and the front and rear ends are supported by the pair of lead supports. Are arranged in the front-rear direction, an insulating disk having a lead support penetrated in front of the base is disposed and fixed, and an arc tube and a lead support disposed in front of the disk have a rear end opening formed on the disk. What is claimed is: 1. A discharge lamp device which is surrounded by a glass UV shielding glove of a closed front end fixed and held, wherein the insulating disk is made of glass, and a rear end opening of the UV shielding glove and the disk are formed. The engagement portion is sealed by welding, and the two lead support through-holes of the insulating disk are formed around the through-hole. Parts sealed by welding, is obtained so as to seal the inert gas in the glove for ultraviolet blocking.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a discharge lamp device, wherein a pair of long and short lead supports are inserted into a pair of lead support through holes of an insulating disk made of glass, and a peripheral portion of one of the lead support through holes. The lead support penetrating this hole is fixed to the disk, and the front end of the arc tube is connected to the long lead support and the rear end of the arc tube is connected to the short lead support, respectively. The transparent disk is integrated, and then the glass ultraviolet shielding glove is welded and fixed to the insulating disk to surround the arc tube and the lead support extending in front of the disk, and then the other lead support which is not welded and sealed is penetrated. After filling the glove with inert gas through the hole, this lead support Welded to the periphery of the hole to secure the lead support penetrating the hole in the disc, it is the last one to fix integrally the disc and the insulating base.

[0009]

The joint between the glass-made ultraviolet shielding glove and the glass insulating disc has a joint structure in which both members are welded and integrated, which is compared with a joint structure using an adhesive as in the prior art. Excellent strength and airtightness at the joint. The glove and the disc can be joined by welding the engaging portion of the two members, for example, by irradiating a laser, and long-time heating and drying in a high-temperature furnace as in the case of using a conventional inorganic adhesive. It is completely unnecessary.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 7 show a first embodiment of the present invention. FIG. 1 is a perspective view of a discharge lamp device partially cut away, FIG. 2 is a longitudinal sectional view of the discharge lamp device, and FIG. FIG. 7 to FIG. 7 are process explanatory views illustrating the process of manufacturing the discharge lamp device.

In these figures, the discharge lamp device comprises:
Arc tube 10 which is a light emitting part, and arc tube 1
0 and an ultraviolet shielding globe 50 surrounding the arc tube 10. The arc tube 10 is pinched near the end of the circular pipe-shaped quartz glass tube,
It has a structure in which pinch seal portions 13a and 13b having a rectangular cross section are formed at both ends of an ellipsoidal closed glass sphere 12 forming a discharge space.
Mercury and metal iodide are enclosed. Discharge spaces 15a and 15b made of tungsten are opposed to each other in the discharge space, and the discharge electrodes 15a and 15b are
Molybdenum foils 16a, 16b sealed to 3a, 13b
The lead wires 18a, 18b respectively connected to the molybdenum foils 16a, 16b are inserted through the cylindrical extension portions 14a, 14b, which are not pinch-sealed, from the ends of the pinch seal portions 13a, 13b. Extends to.

The arc tube holder 20 is integrally fixed to the front of the base 21 with an insulating base 21 made of synthetic resin having a power supply cord connecting portion 27 formed at the rear. UV shielding gloves 5
0, a glass disk 30 supporting the rear end opening;
And a metal lead support 36 extending forward through the disk 30 and supporting the front end of the arc tube 10. Reference numeral 36a denotes the arc tube 10.
Is a metal band-like support member that grips the front end of the lead support 36 and is welded to the front end of the lead support 36 to connect the arc tube 10 and the lead support 36.

A claw 22a of a metal ring member 22 integrated with the disk 30 by insert molding is projected from the front surface of the insulating base 21, and the disk 30 is attached to the base 21 by caulking the claw 22. The lead support 36 and the arc tube 10 are fixed by welding to the disk 30 at the penetrating portion of the glass disk. That is, a glass tube 32 welded and integrated with the lead support 36 is welded and fixed to the lead support through hole 31 of the disk 30 by a CO ₂ laser, and the lead support 36 fixed and supported by the glass tube 32 is inserted into the through hole 31. 31 and extends forward of the disk 30. On the other hand, a rear end portion of the arc tube is inserted into the arc tube through hole 33, and the through hole is welded and fixed by a CO ₂ laser to seal the arc tube through hole 33. Reference numeral 37 denotes a molybdenum foil to which the rear end of the lead support 36 and the lead wire 38 are connected. The area near the molybdenum foil 37 of the glass tube 32 is shrink-sealed, so that the inside of the glass tube 32, that is, the lead support through hole is provided. 31 is sealed. The shrink-sealed glass tube 32 is engaged with the glass tube insertion hole 23 formed in the base, and the lead wire 38 led out of the glass tube 32 is moved from the lead wire insertion hole 23a provided at the bottom of the hole 22 to the rear side. derived, it is spot welded to the power supply cord L _1. The rear end of the arc tube 10 that has passed through the arc tube through hole 33 of the disk 30 is engaged with the arc tube insertion hole 24 formed in the base 21, and a lead wire 18 b derived from the rear end of the arc tube.
Is a cylindrical terminal 2 which is led out from the lead wire insertion hole 24a provided at the bottom of the hole 24 to the rear side and protrudes to the rear surface of the base.
It is spot welded with feeding cord L ₂ to 6.

The lead wires 38 and 18b respectively led out to the rear side of the base protrude greatly backward, and
8 is separated by a partition wall 28b that engages with a projection 28a formed on the inside of the power supply cord 8.
Is configured. And this power supply cord connection part 27
Is a plug cover 28 through which the power supply cords L ₁ and L ₂ are inserted.
Sealed by. Reference numeral 29 denotes a metal ring member attached to an engagement portion between the base 21 and the plug cover 28, and reference numeral 29a denotes a focus ring interposed around the metal ring member 29. The base 21, the plug cover 28 and the focusing ring 29a are integrated by induction heating.

The front end of the ultraviolet shielding glove 50 is spherical, and the rear end opening is engaged with the outer peripheral edge of the front surface of the disk 30. This engagement portion is welded and integrated by a CO ₂ laser, and The engaging portion of the disk 30 is sealed, and the globe 50 is filled with Ar gas. Reference numeral 54 denotes a getter attached to the lead support 36 by spot welding or the like to remove impurity gases such as O ₂ and H ₂ O in the sealed glove 50.
The structure has a structure in which a getter substance is applied to the surface of a. Reference numeral 56 denotes a black top formed on the spherical end portion of the globe 50.

Next, a method of manufacturing the discharge lamp device shown in FIGS. 1 and 2 will be described with reference to FIGS. The discharge lamp device is manufactured in the order shown in FIG. 3 → FIG. 4 → FIG. 5 → FIG. 6 → FIG. 7, and FIG. 3 shows a process of welding the glass tube 32 to the disk 30. In the glass tube welding step shown in FIG. 3, first, the quartz glass tube 32 </ b> A is engaged with the glass tube insertion concave portion 31 a formed at the position of the lead support through hole 31 of the disk 30, and the disk 30 is attached to the center axis 31 of the hole 31.
While rotating around L, the glass tube 32A is welded to the disk 30 by irradiating the periphery of the recess 31a with a CO ₂ laser as shown by arrow A.

FIG. 4 shows a process of assembling the lead support and the arc tube to the disk. First, disk 30
The rear end of the arc tube is inserted through the arc tube through hole 33, and the CO ₂ laser is irradiated on the peripheral portion of the through hole 33 as shown by the arrow B while rotating the disk 30 around the central axis 33L of the hole 33. Then, the arc tube 10 is welded to the disk 30. Further, the lead support 36 integrated with the connection of the molybdenum foil 37 and the lead wire 38 is inserted into the glass tube 32A and extends above the disk 30, and the front end of the lead support is spotted on the support member 36a attached to the front end of the arc tube. Weld. The lead wire 18a projecting from the front end of the arc tube 10 is spot-welded to the support member 36a. At this time, getter 5
4 is welded to the lead support 36.

FIG. 5 shows the welding and fixing of the ultraviolet shielding glove.
And a process of sealing Ar gas. First, insert the disk 30
With the rear end opening of the lobe 50 engaged,
While rotating the lock 30 around the central axis 33L of the hole 33,
As shown in mark C, CO _TwoIrradiate laser to engagement part
By welding. And lead support
Glow through a glass tube 32A communicating with the through hole 31.
The inside of the glove 50 is exhausted, and the Ar gas is
An inert gas such as gas is injected.

FIG. 6 shows the steps of sealing the lead support through-hole and forming the ultraviolet shielding film. First, A
With the r gas filled, the molybdenum foil region of the glass tube 32A is heated with a burner such as oxyhydrogen and shrink-sealed to seal the Ar gas in the globe 50. Then, after dipping on the outside of the globe 50 and drying, a ZnO film having an ultraviolet shielding effect is formed.

FIG. 7 shows the final steps such as fixing the base and connecting the power supply cord. The glass tube 32 and the rear end of the arc tube are engaged with the holes 23 and 24 of the
2a is bent to fix the disk 30 to the front of the base 21 by caulking, and the power supply cords L ₁ and L ₂ are connected to the lead wires 38 and 18b led out to the back of the base 21 by spot welding or the like. Cover 28 and focus ring 29
a is welded to the base 21 by high-frequency induction heating. Then, a black top 56 is formed at the front end of the ultraviolet shielding globe 50.

FIGS. 8 to 13 show a second embodiment of the present invention. FIG. 8 is a longitudinal sectional view of a discharge lamp device, and FIG. 9 is a metal connecting a short lead support and a rear end portion of an arc tube. FIG. 10 to FIG. 14 are perspective views of the support member for manufacturing, and FIG. 10 to FIG. In the second embodiment, the arc tube holder 20A that supports the arc tube 10A is made of an insulating base 2 made of synthetic resin.
1A, a glass disk 30A, and a disk 30A
And a pair of metal long and short lead supports 36 and 66 that extend forward through the wire and support the front and rear ends of the arc tube 10A and act as a current path. It is welded and fixed the glass tube 32 which is pinch-sealed to support the lead support 36 'is the CO ₂ laser the lead support through-hole 31 of the disc 30A.
The lead support 36 projects forward of the glass tube extension 32'a extending forward of the disk 30A, and a support member 36a attached to the front end of the arc tube 10A is welded to the front end of the lead support 36. . On the other hand, a glass tube 32 ″ welded and fixed to the lead support 66 by a shrink seal is inserted into the lead support through hole 31 ′.
This through hole 3 is welded and fixed by an O ₂ laser.
A lead support 66 extends forward from 1 '. A support member 36b in the form of a metal band attached to the rear end of the arc tube 10 is spot-welded to the front end of the lead support 66, and the lead wire 18b derived from the rear end of the arc tube is spot-welded to the support member 36b. Welded. The front extension 32 'of the glass tube 32'
a is effective in preventing discharge between the lead supports 36 and 66.

The support member 36b, as shown in FIG. 9, the arc tube gripping portion 36b ₁ for gripping an extending portion 14b of the arc tube 10A, the upper plate portion extending above the arc tube gripper 36b ₁ consists lead support the grip portion 36b ₃ Metropolitan extending from one of 36b _2, the downwardly extending portion of the lead support grip portion 36b _3, lead 18b be derived from the arc tube 10A
Protrusion 36b ₄ for spot welding is formed a. The longitudinal length d ₁ of the arc tube gripper 36b ₁ is 1.5 mm, longitudinal length d ₂ of the lead support the grip portion 36b ₃ is 2.5 mm, the gap d ₃ between both gripper is a 1 mm, the support The overall length of the member 36b is small, so that the arc tube 10A can be arranged closer to the disk 30A than in the conventional structure.

The lead wire 38 'extending from the shrink seal portion of the glass tube 32''is connected to a lead wire insertion hole 23' provided at the bottom of the glass tube engaging hole 23 'of the base 21A.
derived on the back side from a, it is connected to the power supply cord L _2. The other parts are the same as those of the first embodiment described above, and the same reference numerals are given to omit redundant description.

Next, referring to FIGS.
The manufacturing process of the pump device will be described. Shown in this second embodiment.
The discharge lamp device is shown in FIG. 10 → FIG. 11 → FIG. 12 → FIG. 13 →
It is manufactured in the order shown in FIG.
3 to 7 showing the manufacturing steps of the first embodiment described above.
FIG. First, Fig. 10 shows two glass tubes on the disc.
Is shown. Glass tube welding shown in FIG.
In the process, first, the lead support through-hole of the disk 30A
31 is inserted through a quartz glass tube 32B, and the disc 30A is
While rotating around the central axis 31L of the hole 31, CO_TwoLeh
Irradiate the edge of the hole 31 as shown by arrow D
The lath tube 32B is welded to the disk 30A. Glass tube 3
2B is a large diameter portion that engages with the concave portion 31a of the disc 30A.
32B₁And a small diameter engaging with the lead support insertion hole 31.
Part 32B_TwoIs a stepped glass tube welded and integrated in advance,
The step between the small diameter portion and the large diameter portion is the step between the hole 31 and the concave portion 31a.
It is naturally positioned by engaging with the part. Glass tube 32
After welding B, quartz glass is inserted into the glass tube insertion recess 31'a.
Engage the tube 32C and place the disc 30A in the center of the hole 31 '.
While rotating around the axis 31'L, CO _TwoLaser with arrow E
Irradiation as shown in FIG.
Weld to.

FIG. 11 shows a process of assembling the arc tube to the disk. First, the molybdenum foil 37 and the lead support 3 integrated with the lead wire 38 (38 ') are connected.
6 and 66 are inserted through the glass tubes 32B and 32C to extend above the disk 30A. Next, the glass tube 32
The molybdenum foil region of B is heated and pinch-sealed, and the glass tube 32B is chipped off. The support member 36a attached to the front end of the arc tube is spot-welded to the front end of the lead support 36, and the lead wire 18a extending from the front end of the arc tube 10 is spot-welded to the support member 36a. The arc tube 10
The support member 36b attached to the rear end of the lead support 6
6, and a lead wire 18b extending from the rear end of the arc tube 10 is spot-welded to the support member 36b.

FIG. 12 shows the steps of welding and fixing the ultraviolet shielding glove and enclosing the Ar gas. First, disk 30A
While the rear end opening of the glove 50 is engaged with the disk, the disk 30A is rotated around the central axis 30L, and the engaging portion is irradiated with a CO ₂ laser as shown by an arrow F to weld them together. Then, the inside of the glove 50 is exhausted through the lead support through-hole 31 and
Ar gas is injected into the inside.

FIG. 13 shows the steps of sealing the lead support insertion hole and forming the ultraviolet shielding film. First, with the glove 50 filled with Ar gas, the molybdenum foil region of the glass tube 32C is heated and shrunk sealed with a burner such as oxyhydrogen, so that the Ar gas is sealed in the glove 50 and the shrink seal portion is formed. Chip off the neighborhood. Then, a ZnO film is formed outside the globe 50 by dipping.

FIG. 14 shows the final steps such as fixing the base and connecting the power supply cord. Glass tube 32 ', 32''
Are engaged with the holes 23, 23 'of the base 21, the claws 22a are bent to fix the disk 30A to the front surface of the base 21A, and the power is supplied to the lead wires 38, 38' led out to the rear surface of the base 21A. Cords L ₁ and L ₂ are connected,
The plug cover 28 and the focus ring 29a are welded to the base 21 by high-frequency induction heating. Then, a black top 56 is formed at the front end of the ultraviolet shielding globe 50.

[0029]

As is apparent from the above description, according to the discharge lamp device of the present invention, the joint between the glass ultraviolet shielding glove and the glass insulating disk is:
A joint structure where both members are welded and integrated, and the joint strength and the degree of sealing of the joint are superior to the joint structure using an adhesive as in the prior art, so a stable light quantity that can withstand long-term use Is obtained.

The glove and the disk may be joined by welding the engaging portion of the two members by irradiating a heat source such as a laser, for example, in a high-temperature furnace as in the case of using a conventional inorganic adhesive. Since heat drying for a long time is not required at all, the manufacture of the discharge lamp device is facilitated.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a discharge lamp device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the discharge lamp device.

FIG. 3 is a view showing a glass tube welding step in the manufacturing process of the discharge lamp device.

FIG. 4 is a view showing an arc tube welding process and a lead support assembly assembling process in the manufacturing process of the discharge lamp device.

FIG. 5 is a view showing a welding step of an ultraviolet shielding glove in a manufacturing process of the discharge lamp device.

FIG. 6 is a view showing a process of supplying and sealing an inert gas in a manufacturing process of the discharge lamp device.

FIG. 7 is a view showing a connection step of a power supply cord and a plug in a manufacturing process of the discharge lamp device.

FIG. 8 is a longitudinal sectional view of a discharge lamp device according to another embodiment of the present invention.

FIG. 9 is a perspective view of a support member that connects between a short lead support and a rear end of an arc tube.

FIG. 10 is a view showing a glass tube welding step in the manufacturing process of the discharge lamp device.

FIG. 11 is a view showing a process of assembling a lead support and an arc tube in a manufacturing process of the discharge lamp device.

FIG. 12 is a view showing a process of welding an ultraviolet shielding glove and supplying an inert gas in a manufacturing process of the discharge lamp device.

FIG. 13 is a view showing a step of sealing an inert gas in a manufacturing process of the discharge lamp device.

FIG. 14 is a view showing a connection step of a power supply cord and a plug in a manufacturing process of the discharge lamp device.

FIG. 15 is a longitudinal sectional view of a conventional discharge lamp device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Arc tube 20, 20A Arc tube holder 21, 21A Insulating base 24 Hole which can be engaged in the rear end of arc tube 30, 30A Insulating disk made of glass 31, 31 'Lead support through hole 32, 32', 32 ' '' Glass tube 33 Arc tube through hole 36, 66 Lead support 50 Glass UV shielding glove

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masayuki Umehara 500 Kitawaki, Shimizu City, Shizuoka Prefecture Koito Manufacturing Co., Ltd. Shizuoka Factory (56) References JP-A-4-79146 (JP, A) JP-A-4- 79147 (JP, A) JP-A-4-79148 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01J 9/26 H01J 9/32 H01J 61/34 H01J 61/36

Claims (4)

(57) [Claims] A single lead support that functions as a current path extends in front of the insulating base, and an engagement hole with which a rear end of the arc tube can be engaged is formed at a substantially central portion of the insulating base. An arc tube whose front and rear ends are supported by the lead support and the engagement holes is provided in the front-rear direction, and an insulating disk having the arc tube and the lead support penetrated is arranged and fixed on the front surface of the base. A discharge lamp device in which an arc tube and a lead support disposed in front are surrounded by a front end closed cylindrical glass ultraviolet shielding glove having a rear end opening fixedly held to the disk, The disk is made of glass, and an engagement portion between the rear end opening of the ultraviolet shielding glove and the disk is welded and sealed. The lead support through-hole of the disk is sealed by welding the periphery of the through-hole, and the arc tube through-hole of the insulating disk is sealed by welding the rear end of the arc tube to the periphery of the arc tube through-hole. And an inert gas is sealed in the ultraviolet shielding glove. 2. A rear end portion of an arc tube is welded to a through hole of an arc tube of an insulating disk made of glass, a lead support is inserted into a through hole of the lead support and extended forward of the disk. The arc tube, the lead support and the insulating disk are integrated by connecting the front ends of the lead support, and then the arc tube and the lead support extending forward of the disk by welding and fixing a glass ultraviolet shielding glove to the insulating disk. After surrounding and then filling the glove with an inert gas through the lead support through hole, the periphery of the lead support through hole is welded to fix the lead support to the disc,
Finally, a method for manufacturing a discharge lamp device, wherein the disk and the insulating base are fixedly integrated. 3. A pair of long and short lead supports extending as a current path extends forward of the insulating base, and an arc tube whose front and rear ends are supported by the pair of lead supports is disposed in the front-rear direction. An insulative disk having a lead support penetrated is arranged and fixed on the front surface, and an arc tube and a lead support disposed in front of the disk have a front end closed cylindrical glass having a rear end opening fixed to the disk. A discharge lamp device surrounded by ultraviolet shielding gloves, wherein the insulating disk is made of glass, and an engagement portion between a rear end opening of the ultraviolet shielding glove and the disk is welded and sealed. And the insulating disk 2
A discharge lamp device, wherein each of the two lead support through-holes is welded and sealed at the periphery of the through-hole, and an inert gas is sealed in the ultraviolet shielding glove. 4. A pair of long and short lead supports are inserted into a pair of lead support through holes of an insulating disk made of glass, and the periphery of one of the lead support through holes is welded to form a lead support penetrating the hole. The arc tube, the lead support and the insulating disk are integrated by connecting the front end of the arc tube to the long lead support and the rear end of the arc tube to the short lead support, and then the glass ultraviolet shielding. The glove is welded and fixed to the insulating disk to surround the arc tube and the lead support extending in front of the disk, and then filled with inert gas through another lead support through hole that is not welded and sealed. After that, the periphery of the lead support through hole is welded and the lead support penetrating this hole A method for manufacturing a discharge lamp device, comprising: fixing a disk to a disk; and finally, integrating the disk and an insulating base.