JPH11144680A - Bulb sealing body and bulb - Google Patents
Bulb sealing body and bulbInfo
- Publication number
- JPH11144680A JPH11144680A JP32398697A JP32398697A JPH11144680A JP H11144680 A JPH11144680 A JP H11144680A JP 32398697 A JP32398697 A JP 32398697A JP 32398697 A JP32398697 A JP 32398697A JP H11144680 A JPH11144680 A JP H11144680A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- welded
- conductive
- bulb
- closed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は水銀ランプやキセノ
ンランプやメタルハライドランプ等の放電ランプ、また
はハロゲンランプやハロゲンヒータ等の白熱電球の閉塞
管部を閉塞する傾斜機能材料からなる管球用閉塞体、お
よび管球用閉塞体を使用した管球に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closing member for a bulb made of a functionally graded material for closing a closing tube portion of a discharge lamp such as a mercury lamp, a xenon lamp or a metal halide lamp, or an incandescent lamp such as a halogen lamp or a halogen heater. , And a tube using the tube closure.
【０００２】[0002]
【従来の技術】最近、シリカガラス製の発光管内に一対
の電極が対向配置された放電ランプの発光管に連設され
た閉塞管を封止する閉塞体として、傾斜機能材料が使用
され始めている。傾斜機能材料で形成された閉塞体は、
一方側がシリカなどの絶縁性無機物質成分に富み、他方
側に向かうにつれてモリブデンなどの導電性無機物質成
分の割合が連続的にまたは段階的に増加するものであ
る。したがって、例えばシリカとモリブデンからなる傾
斜機能材料を使用した閉塞体の場合、該閉塞体の一方の
側は絶縁性であるとともに熱膨張率が発光管材料のシリ
カガラスの熱膨張率に同じかまたは近く、他方の側は導
電性であるとともに熱膨張率が電極芯棒の材料であるタ
ングステンまたはモリブデンの熱膨張率に近いという特
性を有する。この特性が管球の閉塞体として適してい
る。2. Description of the Related Art Recently, a functionally graded material has begun to be used as a closure for sealing a closure tube connected to an arc tube of a discharge lamp in which a pair of electrodes are arranged opposite to each other within an arc tube made of silica glass. . The closure formed of the functionally graded material,
One side is rich in an insulating inorganic material component such as silica, and the ratio of a conductive inorganic material component such as molybdenum increases continuously or stepwise toward the other side. Therefore, for example, in the case of a plug using a functionally gradient material composed of silica and molybdenum, one side of the plug is insulative and has a coefficient of thermal expansion equal to or the same as the coefficient of thermal expansion of the silica glass of the arc tube material. The other side is electrically conductive and has a characteristic that the coefficient of thermal expansion is close to the coefficient of thermal expansion of tungsten or molybdenum which is the material of the electrode rod. This property is suitable as a tube blockage.
【０００３】管球の中で、フィラメント発熱体を有する
ハロゲンランプやハロゲンヒータ等の白熱電球において
もその発光管はシリカガラス製であるので、閉塞体とし
てこの傾斜機能材料を使用できる。[0003] In the incandescent lamp such as a halogen lamp or a halogen heater having a filament heating element, the arc tube is made of silica glass, so that the functionally gradient material can be used as a closing body.
【０００４】図１は放電ランプの閉塞体として傾斜機能
材料を使用した従来の放電ランプの例の断面図を示す。
放電ランプ１の発光管２および閉塞管３は絶縁性無機物
質成分（例えばシリカガラス）製であり、発光管２内部
に対向した一対の電極５、５が配置されている。前記両
電極は電極芯棒６の先端にあり、該電極芯棒６は閉塞体
４の導電性部分４１まで挿入され焼き嵌められている。
記号７は外部リードであり、電極芯棒と同様に焼き嵌め
られている。なお、外部リード７と電極芯棒６を一体と
して、閉塞体４を貫通して焼き嵌められることもある。FIG. 1 is a sectional view showing an example of a conventional discharge lamp using a functionally graded material as a closing body of the discharge lamp.
The arc tube 2 and the closed tube 3 of the discharge lamp 1 are made of an insulating inorganic material component (for example, silica glass), and a pair of electrodes 5 and 5 facing each other are arranged inside the arc tube 2. The two electrodes are located at the tip of the electrode rod 6, and the electrode rod 6 is inserted up to the conductive portion 41 of the closing body 4 and shrink-fitted.
Reference numeral 7 denotes an external lead, which is shrink-fitted like the electrode core rod. In some cases, the external lead 7 and the electrode core 6 may be integrated and shrink-fitted through the closing body 4.
【０００５】閉塞体４は円柱状であり、軸方向に一様な
外径を有し、絶縁性無機物質成分（例えばシリカ）と導
電性無機物質成分（例えばモリブデン）から形成されて
おり、該閉塞体４の一方の側（発光管内方側）は絶縁性
無機物質成分に富み絶縁性部分４０であり、他方側（発
光管外方側）は導電性無機物質成分に富み導電性部分４
１である。そして、絶縁性無機物質成分側端面は放電ラ
ンプ１の発光管２の放電空間に面するように配置され、
該発光管２の両端に形成された閉塞管３は閉塞体４の絶
縁性部分４０にて気密に溶着封止される。The closing member 4 is cylindrical, has a uniform outer diameter in the axial direction, and is formed of an insulating inorganic material component (eg, silica) and a conductive inorganic material component (eg, molybdenum). One side (the inner side of the arc tube) of the closing body 4 is an insulating portion 40 rich in an insulating inorganic material component, and the other side (the outer side of the arc tube) is a conductive portion 4 rich in a conductive inorganic material component.
It is one. Then, the end face of the insulating inorganic substance component side is arranged so as to face the discharge space of the arc tube 2 of the discharge lamp 1,
The closed tubes 3 formed at both ends of the arc tube 2 are hermetically welded and sealed at the insulating portion 40 of the closed body 4.
【０００６】傾斜機能材料製の閉塞体を管球の閉塞体と
して使用する場合は、従来は図１に示すように傾斜機能
材料の絶縁性部分４０を閉塞管３で覆い溶着封止して傾
斜機能材料製閉塞体４を閉塞管３から突出させて該閉塞
体４の導電性部分４１を直接帯状の口金１０で挟んで給
電する構成としていた（閉塞体突出型）。しかし、該閉
塞体の折損防止のため、最近では図２に示すように閉塞
管３を延長して該閉塞体４より長くして閉塞体を保護す
る「保護管」の役割を閉塞管に持たせ、これに口金１０
を接着材１７で固定するという方式が用いられることも
行われる（保護管型）。図２の構造の放電ランプにおい
ては、閉塞体４の導電性部分端面から突出した外部リー
ド棒７が外部リード棒延長線９と溶接部８で溶接され、
該外部リード棒延長線９は口金１０のロウ付部１１でロ
ウ付けされている。When an obstruction made of a functionally graded material is used as an obstruction for a tube, conventionally, as shown in FIG. The closure 4 made of a functional material is made to protrude from the closure tube 3 so that the conductive portion 41 of the closure 4 is directly sandwiched between the band-shaped bases 10 to supply power (protruding closure). However, in order to prevent breakage of the closing body, recently, as shown in FIG. 2, the closing pipe has a role of a “protection pipe” that extends the closing pipe 3 and is longer than the closing body 4 to protect the closing body. Let's add this to the base 10
Is fixed by an adhesive 17 (protective tube type). In the discharge lamp having the structure of FIG. 2, the external lead rod 7 protruding from the end face of the conductive part of the closing body 4 is welded to the external lead rod extension line 9 and the welding portion 8,
The external lead rod extension 9 is brazed at a brazing portion 11 of a base 10.
【０００７】前述の「閉塞体突出型」の方式では、閉塞
体４の絶縁性部分４０での溶着封止では発光管２内を負
圧にした状態で閉塞管３における閉塞体４の絶縁性部分
４０の位置する個所を閉塞管の外側から火炎バーナーで
加熱することにより、閉塞管３を溶融させて縮径するよ
うに変形させ、閉塞管３と閉塞体４の絶縁性部分４０と
を気密に溶着する。[0007] In the above-mentioned "closing body protruding type" system, when the inside of the arc tube 2 is kept at a negative pressure, the insulating property of the closing body 4 in the closing tube 3 is set in the welding and sealing at the insulating portion 40 of the closing body 4. By heating the portion where the portion 40 is located from outside of the closed pipe with a flame burner, the closed pipe 3 is melted and deformed so as to reduce the diameter, and the closed pipe 3 and the insulating portion 40 of the closed body 4 are airtightly sealed. Weld to.
【０００８】そして、後者の「保護管型」の方式におい
て、軸方向で一定の外径を有する円柱状閉塞体４を使用
した場合、閉塞管３内壁と閉塞体４の絶縁性部分４０を
密着させるように溶着封止する過程では、接合のまさに
離れる箇所、すなわち閉塞体の被溶着部外端で、図３に
示すように鋭い角度を持ってガラスが傾斜機能材料製閉
塞体から離間する。また、溶着接合面の外縁部が波を打
ったような状態になり、形状的にも制御しにくかった。In the latter "protective tube type" system, when a cylindrical closing member 4 having a constant outer diameter in the axial direction is used, the inner wall of the closing tube 3 and the insulating portion 40 of the closing member 4 are brought into close contact with each other. In the process of welding and sealing, the glass separates from the functionally graded material closure at a sharp angle, as shown in FIG. 3, at the point where the joining is just separated, that is, at the outer end of the welded portion of the closure. Further, the outer edge of the welded joint surface was wavy, and it was difficult to control the shape.
【０００９】つまり、「保護管型」の方式においても、
前記被溶着部外端がエッジ部１２となっており、そのエ
ッジ部１２が応力に対して弱い構造的特異点となり、溶
着封止する際に放電ランプに力がかかりエッジ部１２に
応力集中が起こりやすい。そして、ついにはエッジ部１
２で閉塞体４が折れるという不具合が発生する。That is, in the "protective tube type" system,
The outer end of the welded portion is an edge portion 12, and the edge portion 12 is a structural singularity that is weak against stress. When welding and sealing, a force is applied to the discharge lamp and stress concentration occurs on the edge portion 12. Easy to happen. And finally the edge part 1
The trouble that the closing body 4 is broken at 2 occurs.
【００１０】さらに、「保護管型」の構成の放電ランプ
を組立製作する際に、傾斜機能材料製閉塞体４から突出
した外部リード棒７に外部リード棒延長線９を溶接部８
でスポット溶接したり、口金１０の中に該延長線９を挿
入するときなどに放電ランプに力が加わり、特異点であ
る前記エッジ部１２で折れてしまうことがある。Further, when assembling and manufacturing a discharge lamp having a “protective tube type” configuration, an external lead rod extension 9 is welded to an external lead rod 7 protruding from a functionally graded material closing member 4.
For example, when the extension lamp 9 is inserted into the base 10 by spot welding or the like, a force is applied to the discharge lamp, and the discharge lamp may be broken at the edge portion 12 which is a singular point.
【００１１】[0011]
【発明が解決しようとする課題】そこで本発明の目的
は、放電ランプや白熱電球等の管球の封止工程および封
止工程後の組立製作過程において、閉塞管の閉塞体との
溶着封止端部で折れて破損することの少ない管球用閉塞
体とそれを用いた管球を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a process for sealing a bulb such as a discharge lamp or an incandescent lamp and a process of assembling and sealing a closed tube with a closed body in an assembly and manufacturing process after the sealing process. An object of the present invention is to provide an occluder for a tube which is less likely to be broken and broken at an end portion, and a tube using the same.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するため
に、請求項１記載の発明は、管球の発光管に連設された
閉塞管を封止する管球用閉塞体であって、導電性無機物
質成分および絶縁性無機物質成分からなり、軸方向に沿
って導電性無機物質成分濃度が傾斜的に変化することに
よって導電性部分と絶縁性部分が形成された略柱状の傾
斜機能材料から構成されており、かつ前記閉塞管が溶着
封止される被溶着部外端に連続して外周面に溝部を形成
したことを特徴とする管球用閉塞体とする。In order to solve the above-mentioned problems, the invention according to claim 1 is a tube closing member for sealing a closing tube connected to an arc tube of a tube, A substantially columnar functionally graded material composed of a conductive inorganic material component and an insulating inorganic material component, in which the conductive portion and the insulating portion are formed by the gradient of the conductive inorganic material component concentration along the axial direction. And a groove is formed on the outer peripheral surface of the welded portion where the closed tube is welded and sealed, and a groove is formed on the outer peripheral surface of the closed portion.
【００１３】次に請求項２記載の発明は、管球の発光管
に連設された閉塞管を封止する管球用閉塞体であって、
導電性無機物質成分および絶縁性無機物質成分からな
り、軸方向に沿って導電性無機物質成分濃度が傾斜的に
変化することによって導電性部分と絶縁性部分が形成さ
れた略柱状の傾斜機能材料から構成されており、かつ前
記閉塞管が溶着封止される被溶着部外端より外方にかけ
ての部分の外径を被溶着封止部分の外径より小さくなる
ように外周面に段差を付けたことを特徴とする管球用閉
塞体とする。Next, a second aspect of the present invention is a bulb closing member for sealing a closing tube connected to an arc tube of a bulb,
A substantially columnar functionally graded material composed of a conductive inorganic material component and an insulating inorganic material component, in which the conductive portion and the insulating portion are formed by the gradient of the conductive inorganic material component concentration along the axial direction. And a step is provided on the outer peripheral surface so that the outer diameter of a portion extending outward from the outer end of the welded portion to which the closed pipe is welded and sealed is smaller than the outer diameter of the welded sealed portion. A closed body for a tube characterized by the above.
【００１４】さらに、請求項３記載の発明は、発光管と
該発光管に連設された閉塞管と該閉塞管を閉塞する閉塞
体を有する管球において、該閉塞体は、導電性無機物質
成分および絶縁性無機物質成分からなり、軸方向に沿っ
て導電性無機物質成分濃度が傾斜的に変化することによ
って導電性部分と絶縁性部分が形成された略柱状の傾斜
機能材料から構成されており、かつ前記閉塞管が溶着封
止される被溶着部外端に連続して外周面に溝部を形成し
てあり、該閉塞管は該閉塞体の被溶着封止部分よりも長
い長さを有していることを特徴とする管球とする。Further, according to a third aspect of the present invention, there is provided a bulb having an arc tube, an obstruction tube connected to the arc tube, and an obstruction for obstructing the obstruction tube, wherein the obstruction is made of a conductive inorganic material. Component and an insulating inorganic material component, and is formed of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by a gradient of the conductive inorganic material component concentration along the axial direction. And a groove is formed on the outer peripheral surface continuously to the outer end of the portion to be welded in which the closing tube is welded and sealed, and the closing tube has a longer length than the welded and sealed portion of the closing body. It is a tube characterized by having.
【００１５】そして、請求項４記載の発明は、発光管と
該発光管に連設された閉塞管と該閉塞管を閉塞する閉塞
体を有する管球において、該閉塞体は、導電性無機物質
成分および絶縁性無機物質成分からなり、軸方向に沿っ
て導電性無機物質成分濃度が傾斜的に変化することによ
って導電性部分と絶縁性部分が形成された略柱状の傾斜
機能材料から構成されており、かつ前記閉塞管が溶着封
止される被溶着部外端より外方にかけての部分の外径を
被溶着封止部分の外径より小さくなるように外周面に段
差を付けてあり、該閉塞管は該閉塞体の被溶着封止部分
よりも長い長さを有していることを特徴とする管球とす
る。According to a fourth aspect of the present invention, there is provided a bulb having an arc tube, an obstruction tube connected to the arc tube, and an obstruction for obstructing the obstruction tube, wherein the obstruction is made of a conductive inorganic material. Component and an insulating inorganic material component, and is formed of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by a gradient of the conductive inorganic material component concentration along the axial direction. And a step is provided on the outer peripheral surface so that the outer diameter of a portion extending from the outer end of the welded portion to which the closed pipe is welded and sealed is smaller than the outer diameter of the welded sealed portion. The closed tube has a length longer than a welded sealed portion of the closed body.
【００１６】また、請求項５に記載の発明は、前記閉塞
管が溶着封止される被溶着部外端の導電性無機物質成分
濃度が０体積％以上３体積％以下であることを特徴とす
る請求項１または請求項２に記載の閉塞体とする。Further, the invention according to claim 5 is characterized in that the concentration of the conductive inorganic substance component at the outer end of the portion to be welded to which the closed tube is welded and sealed is 0% by volume or more and 3% by volume or less. The closing body according to claim 1 or claim 2.
【００１７】[0017]
【作用】閉塞管が溶着封止される被溶着部外端に連続し
て外周面に溝部を形成したり、閉塞管が溶着封止される
被溶着部外端近傍より外方にかけての部分の外径を被溶
着部分の外径より小さくなるように外周面に段差をつけ
た閉塞体とすると、被溶着部外端に形成されるエッジ部
のエッジ角度の鋭さが軽減されるので管球にかかる応力
に対しての閉塞体のエッジ部の機械的強度が増し、管球
の機械的強度も増す。A groove is formed on the outer peripheral surface continuously from the outer end of the welded portion where the closing tube is welded and sealed, or a portion extending from the vicinity of the outer end of the welded portion where the closing tube is welded and sealed to the outside. When a closed body is provided with a step on the outer peripheral surface so that the outer diameter is smaller than the outer diameter of the welded portion, the sharpness of the edge angle of the edge formed at the outer end of the welded portion is reduced, so that the tube is The mechanical strength of the edge of the closing body against such stress increases, and the mechanical strength of the tube also increases.
【００１８】[0018]
【発明の実施の形態】次に図面を用いて本発明の実施の
形態を説明する。本発明の閉塞体を構成する傾斜機能材
料の製造方法については概略次の通りである。絶縁性無
機物質成分粉末と導電性無機物質成分粉末との混合割合
が異なった混合粉末体を複数種類用意し、有機バインダ
を含む溶剤とともに混合した後、造粒された絶縁性無機
物質成分粉末と導電性無機物質成分粉末との混合割合毎
に均一組成層を積層し加圧して円柱状の成形体とする。Embodiments of the present invention will now be described with reference to the drawings. The method for producing the functionally gradient material constituting the closing body of the present invention is roughly as follows. After preparing a plurality of types of mixed powders having different mixing ratios of the insulating inorganic material component powder and the conductive inorganic material component powder, mixing them with a solvent containing an organic binder, and granulating the insulating inorganic material component powder, A uniform composition layer is laminated for each mixing ratio with the conductive inorganic substance component powder and pressed to form a columnar molded body.
【００１９】図９に傾斜機能材料を成形するときの加圧
方法を示すが、円柱状の成形空間を有する金型２０の底
部材２２の上面上に、導電性無機物質成分濃度の最も低
い混合粉末を層状に充填して、ついで２番目に低い導電
性無機物質成分濃度の混合粉末を層状に充填し、そのよ
うに順に導電性無機物質成分濃度を変えた混合粉末を層
状に必要な層数充填し、その後加圧体２１で加圧して成
形することにより、複数層が一体に積層された成形層積
層体２３を形成する。図９では５層の状態が示されてい
る。その後、有機バインダを除去する仮焼結を行なう。FIG. 9 shows a pressurizing method for molding the functionally graded material. On the upper surface of the bottom member 22 of the mold 20 having a cylindrical molding space, a mixture having the lowest concentration of the conductive inorganic substance component is placed. The powder is filled in layers, then the mixed powder having the second lowest concentration of the conductive inorganic substance is filled in layers, and the mixed powder having the conductive inorganic substance concentration changed in this order is required in the number of layers. Filling and then pressurizing with a pressurizing body 21 to form a formed layer laminate 23 in which a plurality of layers are integrally laminated. FIG. 9 shows a state of five layers. After that, temporary sintering for removing the organic binder is performed.
【００２０】仮焼結後、成形層積層体２３の絶縁性側端
面の略中心に該端面表面から該閉塞体の導電性部分まで
いたる電極芯棒と略同径の電極芯棒挿入用の孔を加工す
る。After provisional sintering, a hole for inserting an electrode core rod having substantially the same diameter as the electrode core rod from the surface of the end surface to the conductive portion of the closing body is provided substantially at the center of the insulating side end surface of the molded layer laminate 23. To process.
【００２１】次に、本発明においては閉塞管が溶着封止
される閉塞体の被溶着封止部外端に連続した外周面を旋
盤を使用して削って溝きりするか、同じく旋盤で閉塞体
の封止されない部分の外周面を削る。そして、電極芯棒
挿入用の孔に電極芯棒を挿入してから本焼結する。Next, in the present invention, the outer peripheral surface continuous to the outer end of the sealed portion to be welded of the closed body in which the closed tube is welded and sealed is cut by using a lathe to form a groove, or the same is used for closing with a lathe. Shaving the outer peripheral surface of the unsealed part of the body. After the electrode core rod is inserted into the hole for inserting the electrode core rod, main sintering is performed.
【００２２】なお、図１１に示したハロゲンランプ等の
白熱電球の場合には、電極芯棒６に替えて内部リード棒
１６を閉塞体の孔に挿入して本焼結をする。In the case of an incandescent lamp such as a halogen lamp shown in FIG. 11, the internal lead rod 16 is inserted into the hole of the closing body in place of the electrode core rod 6, and the main sintering is performed.
【００２３】他に本発明の閉塞体の作り方としては、例
えば図１０に示すように完成後の閉塞体の形（閉塞体の
溶着されない部分の径を被溶着部分の径より小さくした
形）にした内面形状の金型２０を使用してそれぞれが均
一組成の複数層が一体に積層された均一層積層体を形成
してもよい。As another method of manufacturing the closing body of the present invention, for example, as shown in FIG. 10, the completed closing body has a shape (a shape in which the diameter of the non-welded portion of the closing body is smaller than the diameter of the portion to be welded). A uniform layer laminate in which a plurality of layers each having a uniform composition are integrally laminated may be formed using the mold 20 having the inner surface shape described above.
【００２４】そして出来上がった閉塞体は放電ランプの
閉塞管部に酸水素バーナー等の火炎バーナーで溶着封止
される。The completed closure is welded and sealed to the closure tube of the discharge lamp with a flame burner such as an oxyhydrogen burner.
【００２５】[0025]
【実施例】次に本発明の実施例を具体的に説明する。傾
斜機能材料としては、絶縁性無機物質成分としてシリカ
（ＳｉＯ２）を、導電性無機物質成分としてモリブデン
（Ｍｏ）を使用した。平均粒径１．０μｍのモリブデン
粉末と平均粒径５．６μｍのシリカ粉末を準備し、シリ
カの体積割合を変えた混合粉末体を調製し、その混合粉
末体にステアリン酸を混合して造粒体とし、図９に示し
た金型２０内にシリカの体積割合の多い順に積層し、加
圧体２１によって１．５ｔ／ｃｍ２の荷重で軸方向に圧
縮し、円柱状の成形層積層体２３を得た。そして、成形
層積層体２３を水素ガス中、１２００℃で３０分仮焼結
し、有機バインダを除去した。Next, an embodiment of the present invention will be described specifically. As the gradient functional material, silica (SiO 2 ) was used as an insulating inorganic substance component, and molybdenum (Mo) was used as a conductive inorganic substance component. A molybdenum powder having an average particle size of 1.0 μm and a silica powder having an average particle size of 5.6 μm are prepared, a mixed powder having a different volume ratio of silica is prepared, and the mixed powder is mixed with stearic acid to granulate. 9 and laminated in the mold 20 shown in FIG. 9 in ascending order of volume ratio of silica, and compressed in the axial direction with a load of 1.5 t / cm 2 by the pressurizing body 21 to obtain a cylindrical shaped layer laminate. 23 was obtained. Then, the molded layer laminate 23 was temporarily sintered in a hydrogen gas at 1200 ° C. for 30 minutes to remove the organic binder.
【００２６】仮焼結後、傾斜機能材料製閉塞体のシリカ
側端面に電極芯棒挿入用の孔開け加工を施した。そし
て、閉塞体の被溶着封止部外端に連続する外周面を旋盤
を使用して削って溝きりした。傾斜機能材料製閉塞体の
寸法は軸方向の全長が１２ｍｍ、径方向の外径が２．１
ｍｍである。溝の深さは０．１〜０・５ｍｍが適当な深
さであり、本実施例においては０．２乃至０．３ｍｍと
した。また、溝きりした箇所の位置はシリカ側端面から
５ｍｍとした。なお、傾斜機能材料のモリブデン濃度が
濃すぎると閉塞管と封止したときに閉塞体にクラックが
入ることから、溝位置は傾斜機能材料製造の設計の際に
決まる軸方向のモリブデン濃度分布に依存する。After the preliminary sintering, a hole for inserting an electrode core rod was formed on the silica-side end surface of the blocker made of a functionally graded material. Then, the outer peripheral surface continuous to the outer end of the sealed portion to be welded of the closing body was cut and grooved using a lathe. The dimensions of the functionally-graded material closing body are such that the overall length in the axial direction is 12 mm and the outer diameter in the radial direction is 2.1.
mm. The appropriate depth of the groove is 0.1 to 0.5 mm, and in the present embodiment, it is 0.2 to 0.3 mm. The position of the grooved portion was 5 mm from the silica-side end face. If the molybdenum concentration of the functionally graded material is too high, the closed body will crack when sealed with the closed tube, so the groove position depends on the molybdenum concentration distribution in the axial direction determined when designing the functionally graded material. I do.
【００２７】次に、タングステン製電極芯棒を電極芯棒
挿入用の孔に挿入し、真空雰囲気において１８２０℃で
５分間加熱して電極芯棒を焼き嵌める本焼結処理を行な
った。Next, a tungsten electrode rod was inserted into a hole for inserting the electrode rod, and heated at 1820 ° C. for 5 minutes in a vacuum atmosphere to perform a final sintering process of shrink-fitting the electrode rod.
【００２８】傾斜機能材料製閉塞体を閉塞管と溶着する
場合、閉塞体の絶縁性部分で溶着するが、閉塞管材料で
あるシリカと溶着される閉塞体の部分の熱膨張係数の関
係から、従来は、傾斜機能材料のモリブデン濃度が体積
％で０％〜１．７％の領域までが閉塞管との溶着封止可
能領域とみなされていた。しかし、発明者等の鋭意研究
の結果、傾斜機能材料のモリブデン濃度が体積％で１．
７％を超え３％の領域までは閉塞体にクラックが入らず
に閉塞管と溶着できることを確認した。すなわち、モリ
ブデン濃度０〜３ｗｔ％までの範囲で閉塞体を閉塞管に
封止可能であり、封止領域の幅を比較的広くとることが
でき、一層気密な溶着封止ができる。When the obstruction body made of a functionally graded material is welded to the obstruction pipe, it is welded at the insulating portion of the obstruction body. Conventionally, a region in which the molybdenum concentration of the functionally gradient material is 0% to 1.7% by volume% is regarded as a region that can be welded and sealed to the closed tube. However, as a result of diligent research by the inventors, the molybdenum concentration of the functionally graded material is 1% by volume.
It was confirmed that up to a region of more than 7% and up to 3%, the closed body could be welded to the closed tube without cracking. That is, the closed body can be sealed in the closed tube in the range of the molybdenum concentration of 0 to 3 wt%, the width of the sealed region can be made relatively wide, and more airtight sealing can be performed.
【００２９】図２は従来から使用されている円柱状の傾
斜機能材料製閉塞体を閉塞管の封止に使用した、閉塞管
を閉塞体の被溶着封止部分よりも長くした放電ランプの
断面図を示しており、被溶着封止部分の外径Ａは溶着封
止されない部分の外径Ｂと等しい（Ａ＝Ｂ）。それに対
して、図４乃至図８および図１１は本発明の管球用閉塞
体を放電ランプに適用した実施例を示す部分断面図であ
る。図６中のＣは溝部の外径である。図４の例ではＡ＞
Ｂであり、図６の例ではＡ＝ＢかつＡ＞Ｃ、図７の例で
はＡ＞Ｂ＞Ｃの関係にある。図８の例では、閉塞体の発
光空間に面した側にテーパー部１４を形成しており、発
光管内ガス耐圧が強くなっている。このテーパー部は閉
塞体を旋盤にかけて超硬バイトの刃を閉塞体の斜めから
当てて切削することによって形成した。図１１は白熱電
球としてのハロゲンランプに本発明の閉塞体を使用した
例である。FIG. 2 is a cross-sectional view of a discharge lamp in which a conventionally used columnar closing member made of a functionally graded material is used for sealing a closing tube, and the closing tube is longer than a sealed portion to be welded of the closing member. The figure shows that the outer diameter A of the portion to be welded and sealed is equal to the outer diameter B of the portion that is not welded and sealed (A = B). On the other hand, FIGS. 4 to 8 and 11 are partial sectional views showing an embodiment in which the tube closing member of the present invention is applied to a discharge lamp. C in FIG. 6 is the outer diameter of the groove. In the example of FIG.
B, A = B and A> C in the example of FIG. 6, and A>B> C in the example of FIG. In the example of FIG. 8, the tapered portion 14 is formed on the side of the closed body facing the light emitting space, and the gas withstand pressure in the light emitting tube is increased. The tapered portion was formed by turning the closing body on a lathe and cutting the blade with a carbide tool obliquely from the closing body. FIG. 11 shows an example in which the closing body of the present invention is used for a halogen lamp as an incandescent lamp.
【００３０】次に、本発明の傾斜機能材料製閉塞体とそ
の閉塞体を使用した本発明の管球としての放電ランプと
従来の円柱状傾斜機能材料製閉塞体とその閉塞体を使用
した放電ランプを実際に製作した際の破損割合を調べた
結果を説明する。本発明の閉塞体を使用した放電ランプ
は図４に示した形状であり、従来の閉塞体を使用した放
電ランプは図２に示した形状である。Next, an obstruction made of a functionally graded material of the present invention, a discharge lamp as a bulb using the obstruction of the present invention, a conventional obstruction made of a columnar functionally graded material and a discharge using the obstruction The result of examining the damage ratio when the lamp is actually manufactured will be described. The discharge lamp using the closed body of the present invention has the shape shown in FIG. 4, and the discharge lamp using the conventional closed body has the shape shown in FIG.
【００３１】製作した放電ランプに使用した閉塞体の寸
法は次の通りである。 [従来品] 全長：１２ｍｍ 外径：２．１ｍｍ [本発明品] 全長：１２ｍｍ 被溶着封止部分の外径：２．１ｍｍ 溶着封止されない部分の外径：１．８ｍｍ 溝深さ：０．２ｍｍ 溝 幅：１ｍｍThe dimensions of the closure used in the manufactured discharge lamp are as follows. [Conventional product] Overall length: 12 mm Outer diameter: 2.1 mm [Product of the present invention] Overall length: 12 mm Outer diameter of welded and sealed portion: 2.1 mm Outer diameter of unwelded portion: 1.8 mm Groove depth: 0 .2mm groove width: 1mm
【００３２】準備した閉塞体は従来品５０個、本発明品
１００個であり、比較検討のためにそれぞれの閉塞体を
使用して放電ランプを製作した。従来型の閉塞体を放電
ランプの閉塞体として使用したとき、閉塞体と閉塞管の
溶着封止の工程で、放電ランプ５０本中１０本の閉塞体
が被溶着封止部外端のエッジ部で折れて破損した。さら
に溶着封止工程の際に残った４０本において、口金を取
りつけたりするランプ組立製作の間に５本が破損した。
つまり、５０本中１５本が破損した。The prepared plugs were 50 conventional products and 100 products of the present invention. For comparison, a discharge lamp was manufactured using each of the plugs. When the conventional closing member is used as the closing member of the discharge lamp, in the step of welding and sealing the closing member and the closing tube, ten closing members of 50 discharge lamps are edged at the outer end of the sealed portion to be welded. Breaked and damaged. Further, among the 40 lamps remaining during the welding and sealing step, 5 lamps were damaged during the manufacture of the lamp assembly for attaching the base.
That is, 15 out of 50 pieces were damaged.
【００３３】一方で、本発明品の閉塞体を放電ランプの
閉塞体として使用したとき、閉塞体と閉塞管の溶着封止
の工程で放電ランプ１００本中閉塞体が折れて破損した
のは０本であり、口金を取りつけたりするランプ組立製
作の間には１本しか破損しなかった。つまり、１００本
中破損したのはわずかに１本であった。このように、被
溶着封止部外端に連続して外周面に溝部を形成したこと
によって明らかに管球の封止工程および封止工程後の組
立製作過程において閉塞管部で折れて破損することの少
ない管球を得ることができることがわかる。On the other hand, when the plug of the present invention was used as a plug of a discharge lamp, in the process of welding and sealing the plug and the plug tube, the plug in 100 discharge lamps was broken and damaged. It was a book, and only one of the lamps was damaged during the manufacture of the lamp assembly for attaching the base. That is, only one of the 100 pieces was damaged. As described above, since the groove is formed on the outer peripheral surface continuously to the outer end of the sealed portion to be welded, the tube is obviously broken and broken at the closed tube portion in the sealing step of the bulb and the assembling and manufacturing process after the sealing step. It can be seen that a tube with less trouble can be obtained.
【００３４】これは、本願発明が図６のように被溶着部
外端であるエッジ部１２に連続する外周面に溝部１３
を、または図４に示すように被溶着部外端であるエッジ
部１２から導電性部分４１にかけて小径部を形成してあ
るので、図５に示すように被溶着部外端から閉塞管内面
と閉塞体外面のなす角（θ）が大きいものとなり、従来
の図３のように鋭いエッジ部がないことによるものであ
る。As shown in FIG. 6, the present invention has a groove 13 on the outer peripheral surface which is continuous with the edge 12 which is the outer end of the portion to be welded.
4, or as shown in FIG. 4, a small-diameter portion is formed from the edge portion 12, which is the outer end of the welded portion, to the conductive portion 41. Therefore, as shown in FIG. This is due to the fact that the angle (θ) formed by the outer surface of the closing body becomes large, and there is no sharp edge as in the conventional FIG.
【００３５】上述の実施例の説明では、シリカとモリブ
デンの組み合わせからなる傾斜機能材料製閉塞体で説明
したが、絶縁性無機物質成分としてはアルミナ、ジルコ
ニア、マグネシア、炭化ケイ素、窒化ケイ素、炭化チタ
ン、などが実用的材料として使用可能であり、導電性無
機物質成分としては、ニッケル、タングステン、タンタ
ル、クロム、白金などが実用的材料として使用可能であ
る。In the above description of the embodiment, the description has been made of the closure made of a functionally gradient material composed of a combination of silica and molybdenum. However, as the insulating inorganic substance component, alumina, zirconia, magnesia, silicon carbide, silicon nitride, titanium carbide , Etc. can be used as practical materials, and nickel, tungsten, tantalum, chromium, platinum, etc. can be used as practical materials as the conductive inorganic substance component.
【００３６】また、閉塞体形状も円柱型に限らず、軸に
垂直な断面が多角形状の角柱体であってもいい。ただ
し、多角形状の角柱体の場合は外径ではなく、断面の最
大寸法が被溶着封止部分より溶着封止されない部分の方
で小径であるということになる。The shape of the closing body is not limited to a columnar shape, but may be a prism having a polygonal cross section perpendicular to the axis. However, in the case of a polygonal prism, not the outer diameter, but the maximum dimension of the cross section is smaller at the portion that is not sealed by welding than at the portion to be sealed.
【００３７】[0037]
【発明の効果】以上詳細に説明したように、請求項１の
発明による管球用閉塞体を使用することによって、閉塞
管部の溶着封止部外端のエッジ部の角度の鋭さを軽減し
ランプの製造過程にランプが折れて破損することの無い
管球とすることができる。As described in detail above, the sharpness of the angle of the edge of the outer end of the welded sealing portion of the closed tube portion is reduced by using the tube closing member according to the first aspect of the present invention. The lamp bulb can be prevented from being broken and broken during the manufacturing process of the lamp.
【００３８】請求項２の発明による管球用閉塞体を使用
すれば、閉塞体の溶着されない部分の外径が小さいので
閉塞管の内径と接触することがなく、一層管球は破損に
強くなる。With the use of the tube closing member according to the second aspect of the present invention, since the outside diameter of the portion of the closing member that is not welded is small, it does not come into contact with the inside diameter of the closed tube, and the tube is more resistant to breakage. .
【００３９】請求項３の発明による管球は、閉塞体が被
溶着封止部外端部に連続する外周面に溝部を形成してい
るので、被溶着封止部のエッジ部の角度の鋭さがなくな
り、エッジ部の機械的強度が増すので折れにくく、また
閉塞管も閉塞体全体を覆っているので保護管として充分
機能する。In the tube according to the third aspect of the present invention, since the closing body forms the groove on the outer peripheral surface continuous with the outer end of the sealed portion to be welded, the sharpness of the angle of the edge of the sealed portion to be welded is sharp. And the mechanical strength of the edge portion is increased, so that the edge is hardly broken. In addition, since the obstruction tube covers the entire obstruction, it functions sufficiently as a protective tube.
【００４０】請求項４の発明による管球は、閉塞管が溶
着封止される閉塞体の被溶着部外端より外方にかけての
部分の外径を被溶着封止部分の外径より小さくなるよう
に外周面に段差を付けてあるので、被溶着封止部のエッ
ジ部の角度の鋭さがなくなり、エッジ部の機械的強度が
増すので折れにくく、また閉塞管も閉塞体全体を覆って
いるので保護管として充分機能する。In the bulb according to the fourth aspect of the present invention, the outer diameter of the portion of the closed body in which the closed pipe is welded and sealed from the outer end of the welded portion is smaller than the outer diameter of the welded sealed portion. Since the outer peripheral surface is stepped as described above, the sharpness of the angle of the edge portion of the sealed portion to be welded is eliminated, and the mechanical strength of the edge portion increases, so that it is difficult to break, and the closing pipe also covers the entire closing body Therefore, it functions well as a protection tube.
【００４１】請求項５の発明によれば、モリブデン濃度
０〜３ｗｔ％までの範囲で傾斜機能材料製閉塞体を閉塞
管に封止可能であり、溶着封止領域を広くとることがで
き、従来より一層気密な溶着封止ができる。According to the fifth aspect of the present invention, the obstruction body made of a functionally graded material can be sealed in the obstruction pipe within the range of the molybdenum concentration of 0 to 3 wt%, and the welding sealing area can be widened. Even more airtight sealing can be achieved.
【図１】放電ランプの閉塞体として傾斜機能材料を使用
した従来の放電ランプの例の部分断面図を示す。FIG. 1 shows a partial cross-sectional view of an example of a conventional discharge lamp using a functionally graded material as a closing body of the discharge lamp.
【図２】従来の傾斜機能材料製閉塞体を使用した放電ラ
ンプの部分断面図を示す。FIG. 2 is a partial cross-sectional view of a discharge lamp using a conventional functionally graded material closure.
【図３】図２で示した放電ランプの部分断面図のエッジ
部の拡大図を示す。FIG. 3 is an enlarged view of an edge part of a partial cross-sectional view of the discharge lamp shown in FIG. 2;
【図４】本発明にかかる傾斜機能材料製閉塞体を放電ラ
ンプに適用した実施例の部分断面図を示す。FIG. 4 shows a partial cross-sectional view of an embodiment in which the closure made of a functionally gradient material according to the present invention is applied to a discharge lamp.
【図５】図４で示した放電ランプの部分断面図のエッジ
部の拡大図を示す。5 is an enlarged view of an edge portion of the partial cross-sectional view of the discharge lamp shown in FIG.
【図６】本発明にかかる傾斜機能材料製閉塞体とそれを
用いた放電ランプの他の実施例の部分断面図を示す。FIG. 6 is a partial cross-sectional view of another embodiment of a closure made of a functionally graded material and a discharge lamp using the same according to the present invention.
【図７】本発明にかかる傾斜機能材料製閉塞体とそれを
用いた放電ランプの他の実施例の部分断面図を示す。FIG. 7 is a partial cross-sectional view of another embodiment of a closure made of a functionally gradient material and a discharge lamp using the same according to the present invention.
【図８】本発明にかかる傾斜機能材料製閉塞体とそれを
用いた放電ランプの他の実施例の部分断面図を示す。FIG. 8 is a partial cross-sectional view of another embodiment of a closure made of a functionally gradient material and a discharge lamp using the same according to the present invention.
【図９】傾斜機能材料製閉塞体を成形するときの一般的
加圧方法の図を示す。FIG. 9 shows a diagram of a general pressurizing method when molding an obstruction made of a functionally gradient material.
【図１０】本発明の傾斜機能材料製閉塞体を成形すると
きの一例としての加圧方法の図を示す。FIG. 10 shows a diagram of a pressurizing method as an example when forming the closed body made of a functionally graded material of the present invention.
【図１１】本発明の傾斜機能材料製閉塞体とそれを用い
た白熱電球の断面図を示す。FIG. 11 is a cross-sectional view of a functionally graded material closure according to the present invention and an incandescent lamp using the same.
１ 放電ランプ ２ 発光管 ３ 閉塞管 ４ 閉塞体 ５ 電極 ６ 電極芯棒 ７ 外部リード棒 ８ 溶接部 ９ 外部リード棒延長線 １０ 口金 １１ ロウ付け部 １２ エッジ部 １３ 溝部 １４ テーパー部 １５ フィラメント １６ 内部リード棒 １７ 接着材 ２０ 金型 ２１ 加圧体 ２２ 底部材 ２３ 成形層積層体 ４０ 絶縁性部分 ４１ 導電性部分 Ａ 閉塞体の被溶着封止部分の外径 Ｂ 閉塞体の溶着封止されない部分の外径 Ｃ 閉塞体の溝部の外径 DESCRIPTION OF SYMBOLS 1 Discharge lamp 2 Arc tube 3 Closed tube 4 Closed body 5 Electrode 6 Electrode core rod 7 External lead rod 8 Welding part 9 External lead rod extension line 10 Base 11 Brazing part 12 Edge part 13 Groove part 14 Taper part 15 Filament 16 Internal lead Rod 17 Adhesive material 20 Mold 21 Pressing body 22 Bottom member 23 Molded layer laminate 40 Insulating part 41 Conductive part A Outside diameter of welded and sealed part of closure B Outside of non-welded part of closure Diameter C Outer diameter of groove of closed body
Claims (5)
する管球用閉塞体であって、 導電性無機物質成分および絶縁性無機物質成分からな
り、軸方向に沿って導電性無機物質成分濃度が傾斜的に
変化することによって導電性部分と絶縁性部分が形成さ
れた略柱状の傾斜機能材料から構成されており、 かつ前記閉塞管が溶着封止される被溶着部外端に連続し
て外周面に溝部を形成したことを特徴とする管球用閉塞
体。1. A tube closing body for sealing a closing tube connected to an arc tube of a tube, comprising a conductive inorganic material component and an insulating inorganic material component, and conductive along an axial direction. Is formed of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by gradiently changing the concentration of a conductive inorganic substance component, and the outside of the welded portion where the closed tube is welded and sealed. A closed body for a tube, wherein a groove is formed on an outer peripheral surface continuously from an end.
する管球用閉塞体であって、 導電性無機物質成分および絶縁性無機物質成分からな
り、軸方向に沿って導電性無機物質成分濃度が傾斜的に
変化することによって導電性部分と絶縁性部分が形成さ
れた略柱状の傾斜機能材料から構成されており、 かつ前記閉塞管が溶着封止される被溶着部外端より外方
にかけての部分の外径を被溶着部分の外径より小さくな
るように外周面に段差を付けたことを特徴とする管球用
閉塞体。2. A closed body for a bulb for sealing a closed tube connected to an arc tube of a bulb, comprising a conductive inorganic material component and an insulating inorganic material component, and electrically conductive along an axial direction. Is formed of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by gradiently changing the concentration of a conductive inorganic substance component, and the outside of the welded portion where the closed tube is welded and sealed. A tube closing body characterized in that a step is provided on an outer peripheral surface so that an outer diameter of a portion from an end to an outer side is smaller than an outer diameter of a portion to be welded.
該閉塞管を閉塞する閉塞体を有する管球において、 該閉塞体は、導電性無機物質成分および絶縁性無機物質
成分からなり、軸方向に沿って導電性無機物質成分濃度
が傾斜的に変化することによって導電性部分と絶縁性部
分が形成された略柱状の傾斜機能材料から構成されてお
り、 かつ前記閉塞管が溶着封止される被溶着部外端に連続し
て外周面に溝部を形成してあり、 該閉塞管は該閉塞体の被溶着封止部分よりも長い長さを
有していることを特徴とする管球。3. A bulb having an arc tube, an obstruction tube connected to the arc tube, and an obstruction for obstructing the obstruction tube, wherein the obstruction comprises a conductive inorganic material component and an insulating inorganic material component. The conductive tube is made of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by gradiently changing the concentration of the conductive inorganic substance component along the axial direction, and the closed tube is welded. A groove is formed on the outer peripheral surface continuously to the outer end of the welded portion to be sealed, and the closing pipe has a length longer than the welded sealing portion of the closing body. Tube.
該閉塞管を閉塞する閉塞体を有する管球において、 該閉塞体は、導電性無機物質成分および絶縁性無機物質
成分からなり、軸方向に沿って導電性無機物質成分濃度
が傾斜的に変化することによって導電性部分と絶縁性部
分が形成された略柱状の傾斜機能材料から構成されてお
り、 かつ前記閉塞管が溶着封止される被溶着部外端より外方
にかけての部分の外径を被溶着部分の外径より小さくな
るように外周面に段差を付けてあり、 該閉塞管は該閉塞体の被溶着封止部分よりも長い長さを
有していることを特徴とする管球。4. A bulb having an arc tube, an obstruction tube connected to the arc tube, and an obstruction for obstructing the obstruction tube, wherein the obstruction comprises a conductive inorganic material component and an insulating inorganic material component. The conductive tube is made of a substantially columnar functionally graded material in which a conductive portion and an insulating portion are formed by gradiently changing the concentration of the conductive inorganic substance component along the axial direction, and the closed tube is welded. A step is formed on the outer peripheral surface so that the outer diameter of a portion from the outer end of the welded portion to be sealed to the outside is smaller than the outer diameter of the welded portion, and the closed pipe is sealed by welding the closed body. A tube having a length longer than a stop portion.
端の導電性無機物質成分濃度が０体積％以上３体積％以
下であることを特徴とする請求項１または請求項２に記
載の閉塞体。5. The method according to claim 1, wherein the concentration of the conductive inorganic substance component at the outer end of the portion to be welded to which the closed tube is welded and sealed is 0% by volume or more and 3% by volume or less. The closure as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32398697A JP3827428B2 (en) | 1997-11-11 | 1997-11-11 | Tube closure and tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32398697A JP3827428B2 (en) | 1997-11-11 | 1997-11-11 | Tube closure and tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11144680A true JPH11144680A (en) | 1999-05-28 |
| JP3827428B2 JP3827428B2 (en) | 2006-09-27 |
Family
ID=18160853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32398697A Expired - Lifetime JP3827428B2 (en) | 1997-11-11 | 1997-11-11 | Tube closure and tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3827428B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002352770A (en) * | 2001-05-24 | 2002-12-06 | Toto Ltd | Sealing member structure for high-intensity discharge lamp |
-
1997
- 1997-11-11 JP JP32398697A patent/JP3827428B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002352770A (en) * | 2001-05-24 | 2002-12-06 | Toto Ltd | Sealing member structure for high-intensity discharge lamp |
| JP4556347B2 (en) * | 2001-05-24 | 2010-10-06 | Ｔｏｔｏ株式会社 | Sealing structure of high-intensity discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3827428B2 (en) | 2006-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6126889A (en) | Process of preparing monolithic seal for sapphire CMH lamp | |
| JP3019968B2 (en) | High pressure discharge lamp and manufacturing method thereof | |
| JP3465193B2 (en) | High pressure discharge lamp | |
| JP2008505442A (en) | System and method for designing projector lamps | |
| JPH06223781A (en) | Lamp | |
| WO2007005259A2 (en) | Ceramic lamps and methods of making same | |
| KR100533660B1 (en) | Lamp and lamp package made of functionally gradient material | |
| JP4454527B2 (en) | Arc tube and high pressure discharge lamp | |
| US7977885B2 (en) | High intensity discharge lamp having compliant seal | |
| EP0160316B1 (en) | Single-ended high intensity discharge lamp and manufacture | |
| JP3419275B2 (en) | Discharge lamp sealing method | |
| US6169366B1 (en) | High pressure discharge lamp | |
| JPH11144680A (en) | Bulb sealing body and bulb | |
| JP4228343B2 (en) | Metal vapor discharge lamp | |
| JP4696163B2 (en) | High pressure discharge lamp with ceramic discharge tube | |
| JP3264228B2 (en) | Electrode composite for sealing | |
| JPS59128753A (en) | Short arc rare gas discharge lamp | |
| JP3346372B2 (en) | Functionally graded sealing material for lamps | |
| JP4521870B2 (en) | Functionally graded material for sealing and tube | |
| JPH0652834A (en) | Tubular bulb | |
| JPH10289691A (en) | Closed body using functionally gradient material | |
| JP2006092946A (en) | Tube bulb and sealing member | |
| JPH0294278A (en) | Constant-voltage discharge tube for ignition device of internal combustion engine | |
| JPH087837A (en) | Metallic vapor discharge lamp | |
| JP2001236925A (en) | Lamp and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041105 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20041105 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20041108 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060316 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060404 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060529 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060620 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060704 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090714 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090714 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100714 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110714 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120714 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130714 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130714 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140714 Year of fee payment: 8 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |