JPS6321889Y2 - - Google Patents
Info
- Publication number
- JPS6321889Y2 JPS6321889Y2 JP17387682U JP17387682U JPS6321889Y2 JP S6321889 Y2 JPS6321889 Y2 JP S6321889Y2 JP 17387682 U JP17387682 U JP 17387682U JP 17387682 U JP17387682 U JP 17387682U JP S6321889 Y2 JPS6321889 Y2 JP S6321889Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- getter
- bulb
- diameter part
- anode
- 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.)
- Expired
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 38
- 239000000463 material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052724 xenon Inorganic materials 0.000 description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 6
- 229910052594 sapphire Inorganic materials 0.000 description 5
- 239000010980 sapphire Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- PMTRSEDNJGMXLN-UHFFFAOYSA-N titanium zirconium Chemical compound [Ti].[Zr] PMTRSEDNJGMXLN-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Description
【考案の詳細な説明】
本考案は、短アーク形キセノンランプ、超高圧
水銀ランプ、および超高圧メタルハライドランプ
等の超高圧放電灯に関する。[Detailed Description of the Invention] The present invention relates to ultra-high pressure discharge lamps such as short-arc xenon lamps, ultra-high pressure mercury lamps, and ultra-high pressure metal halide lamps.
陽極および陰極の先端部が収納される球状部の
両側に、ピンチシール部を設けた透明石英ガラス
製バルブを備える従来の短アーク形キセノンラン
プに代えて、小形でかつ耐衝撃性に優れるととも
に、製造容易で、しかも、より高輝度な特性を得
ることも必要により可能とした高輝度放電灯を、
本出願人は開発し、既に特願昭56−180621号（特
開昭58−82454号）として出願済である。この高
輝度放電灯は封入ガスが封じ込められるバルブを
単結晶サフアイヤ等の透光性アルミナにより直管
形に形成して、このバルブの両端に電極を支持し
た口金を夫々継手管を介して封着し、一方の口金
には排気管を取付けたことを特徴としたものであ
る。この特徴により電極対バルブの接触をなくし
て、これらの熱膨脹差による影響を除去し、かつ
バルブの物理的特性および排気構造により、バル
ブから球状部を除去できる。 It replaces the conventional short-arc xenon lamp, which is equipped with a transparent quartz glass bulb with pinch seals on both sides of the spherical part where the tips of the anode and cathode are housed, and is compact and has excellent impact resistance. A high-intensity discharge lamp that is easy to manufacture and can also achieve higher brightness characteristics when necessary.
The present applicant has developed and already filed an application as Japanese Patent Application No. 180621/1982 (Japanese Unexamined Patent Publication No. 82454/1983). This high-intensity discharge lamp has a bulb in which the gas is sealed, formed into a straight tube shape using translucent alumina such as single-crystal sapphire, and a base that supports electrodes at both ends of the bulb, which are sealed via joint tubes. However, it is characterized by having an exhaust pipe attached to one of the caps. This feature eliminates electrode-to-bulb contact, eliminating the effects of these differential thermal expansions, and the physical characteristics of the valve and the exhaust structure allow the bulb to be removed from the valve.
ところで、この新規な超高圧放電灯は未だ公知
ではないが、本考案者による試験の結果光量減衰
特性および点火特性が良くないことが分つた。光
量減衰特性は第７図中曲線Ａに示され、点火特性
は第８図中点線Ｂおよび二点鎖線Ｃで示されてい
る。なお、光量減衰試験は、連続点灯させた超高
圧放電灯から水平距離にして１ｍの所に照度計を
置いて、経時的に照度変化を測定したものであ
る。また、点火試験は適当な点灯積算時間の各経
過後に１時間消灯してから再点火する毎に、点火
するまでに要した高圧パルスの印加数を計つたも
のである。但し、点線Ｂの試験品の各点灯積算時
間は、０，28，36，42，67時間であり、二点鎖線
Ｃの試験品の各点灯積算時間は、０，16，39，
62，85時間であつた。 By the way, although this new ultra-high pressure discharge lamp is not yet publicly known, as a result of tests conducted by the present inventor, it was found that the light intensity attenuation characteristics and ignition characteristics are poor. The light quantity attenuation characteristic is shown by curve A in FIG. 7, and the ignition characteristic is shown by dotted line B and two-dot chain line C in FIG. In the light intensity attenuation test, an illuminance meter was placed at a horizontal distance of 1 m from an ultra-high pressure discharge lamp that was continuously lit, and changes in illuminance were measured over time. In addition, the ignition test was conducted by counting the number of high-voltage pulses required to ignite each time the light was turned off for one hour after an appropriate cumulative lighting time had elapsed and the light was re-ignited. However, the cumulative lighting time of the test product indicated by dotted line B is 0, 28, 36, 42, and 67 hours, and the cumulative lighting time of the test product indicated by two-dot chain line C is 0, 16, 39,
It was 62.85 hours.
このような好ましくない特性は、種々の実験の
結果、新規な超高圧放電灯の口金およびろう付け
部等が、バルブ内のガスに触れる状態にあるとい
う構造と相まつて、陽極に装着したゲツタの作用
に不都合があるためと推測される。つまり、点灯
動作中の電子衝撃および熱拡散の影響で口金等か
らも有害ガス（H2，O2，H2O，CO，CO2，N2
等）が放出されるため、バルブが球状部を有する
従来の放電灯に比較して、有害ガスの放出量が遥
かに多い。そして、ゲツタは、点灯中の陽極温度
が800℃〜1000℃程度になるため、吸着した有害
ガスのうちのH2成分、つまり吸着H2ガスを約
700℃以上で再放出する。したがつて、点灯中に
おいてはH2ガスが多量にバルブ内に存在し、こ
のことが光量の減衰を促進し、点火性能を悪くし
ていると推測された。 As a result of various experiments, these undesirable characteristics were found to be due to the structure of the new ultra-high-pressure discharge lamp, in which the base and brazed parts come into contact with the gas inside the bulb, and the fact that the getter attached to the anode It is presumed that this is due to the inconvenience in its action. In other words, harmful gases (H 2 , O 2 , H 2 O, CO, CO 2 , N 2
etc.), the amount of harmful gases emitted is much higher than in conventional discharge lamps whose bulbs have spherical parts. Since the anode temperature of Getsuta during lighting is approximately 800℃ to 1000℃, the H2 component of the adsorbed harmful gas, that is, the adsorbed H2 gas,
Re-releases above 700℃. Therefore, it was assumed that a large amount of H 2 gas existed inside the bulb during lighting, which accelerated the attenuation of the light amount and worsened the ignition performance.
本考案は上記の事情のもとに案出されたもの
で、その目的は、光量減衰特性および点火特性を
改善できるとともに、この改善を実現するゲツタ
の取付けが簡単で、かつゲツタを定位置に確実に
保持できるようにした超高圧放電灯を提供するこ
とにある。 The present invention was devised under the above circumstances, and its purpose is to improve the light attenuation characteristics and ignition characteristics, and to make it easy to install the getter that achieves this improvement, and to keep the getter in a fixed position. To provide an ultra-high pressure discharge lamp that can be held securely.
すなわち、本考案は、透光性アルミナよりなる
直管形バルブの両端に電極を支持した口金を夫々
継手管を介して封着し、一方の口金には排気管を
取付け、かつバルブ内に封入ガスを封じ込んでな
る超高圧放電灯において、陽極および陰極のいず
れか一方にゲツタの小径部を直巻きして装着する
とともに、この小径部に一体に連なるゲツタの大
径部をバルブ内周面に接して装着したことを特徴
とする。 That is, in the present invention, caps supporting electrodes are sealed at both ends of a straight tube-shaped bulb made of translucent alumina via joint tubes, and an exhaust pipe is attached to one cap, and the bulb is sealed inside the bulb. In ultra-high pressure discharge lamps that contain gas, the small diameter part of the geta is directly wound around either the anode or the cathode, and the large diameter part of the geta, which is integrally connected to the small diameter part, is attached to the inner peripheral surface of the bulb. It is characterized by being worn in contact with.
この特徴により、電極に直巻きされたゲツタの
小径部を、H2ガスを除く他の有害ガスに対して
活性な温度域で使用できるとともに、空冷作用を
受けるバルブ内周面に接したゲツタの大径部を、
バルブとの熱伝導でH2ガスに対して活性な温度
域で使用できる。このことにより、点灯に伴つて
口金等から多量に放出される有害ガスをゲツタに
吸着させて、バルブ内の封入ガスの純度を高めて
光量減衰特性および点火特性を改善できる。そし
て、ゲツタはその大径部と小径部が一体につなが
つているから、その取付け作業が１度で済み簡単
であるとともに、ゲツタはその小径部を電極に直
巻きすることで、その大径部を小径部並びにバル
ブによつて、バルブに対する定位置に保持でき、
したがつて、振動等によつて大径部が不用意に移
動するおそれがない。 This feature allows the small diameter part of the getter that is directly wound around the electrode to be used in a temperature range that is active against harmful gases other than H2 gas, and also allows the small diameter part of the getter that is directly wound around the electrode to be used in a temperature range that is active against harmful gases other than H2 gas. The large diameter part
It can be used in the temperature range where it is active against H2 gas due to heat conduction with the valve. This allows the getter to adsorb a large amount of harmful gas emitted from the cap or the like when the bulb is turned on, thereby increasing the purity of the gas sealed in the bulb and improving the light attenuation characteristics and ignition characteristics. Since the large diameter part and the small diameter part of the getter are connected as one, it is easy to install, as it only needs to be installed once. can be held in a fixed position relative to the valve by the small diameter part and the valve,
Therefore, there is no risk of the large diameter portion being moved inadvertently due to vibration or the like.
以下、本考案を図面に示す実施例を参照して説
明する。 Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.
第１図は本考案の一実施例に係る短アーク形キ
セノンランプを示し、図中１は両端を開口した直
管形のバルブである。バルブ１はアルミナ、単結
晶サフアイア、多結晶サフアイア等の透光性アル
ミナにより形成されている。本実施例は外径８mm
φ、長さ30.5mm、肉厚0.85mm単結晶サフアイアの
場合である。単結晶サフアイアの特性は従来の透
明石英ガラスと較べて次のように優れている。な
お、（ ）内は透明石英ガラスの値である。常温
での密度3.98gr／cm3（2.20gr／cm3）、常温でのモ
ース硬度９(6)、常温での圧縮強度21000Kg／cm2
（11500Kg／cm2）、常温でのヤング率（35〜42）×
105Kg／cm2（7.4×105Kg／cm2）、20℃、500℃およ
び1000℃での引張強度4060Kg／cm2（1130Kg／cm2）、
2800Kg／cm2（1160Kg／cm2）および3640Kg／cm2
（1310Kg／cm2）、常温での剛性率21×105Kg／cm2
（3.4×105Kg／cm2）、常温でのポアソン比0.254
（0.14）等である。 FIG. 1 shows a short arc xenon lamp according to an embodiment of the present invention, and in the figure, reference numeral 1 denotes a straight tube-shaped bulb with both ends open. The bulb 1 is made of a translucent alumina such as alumina, single crystal sapphire, or polycrystalline sapphire. In this example, the outer diameter is 8 mm.
This is the case of single crystal sapphire with a diameter of 30.5 mm and a wall thickness of 0.85 mm. The characteristics of single crystal sapphire are superior to those of conventional transparent quartz glass as follows. Note that the values in parentheses are for transparent quartz glass. Density at room temperature 3.98gr/cm 3 (2.20gr/cm 3 ), Mohs hardness at room temperature 9(6), compressive strength at room temperature 21000Kg/cm 2
(11500Kg/cm 2 ), Young's modulus at room temperature (35-42)×
10 5 Kg/cm 2 (7.4×10 5 Kg/cm 2 ), tensile strength at 20℃, 500℃ and 1000℃ 4060Kg/cm 2 (1130Kg/cm 2 ),
2800Kg/cm 2 (1160Kg/cm 2 ) and 3640Kg/cm 2
(1310Kg/cm 2 ), rigidity at room temperature 21×10 5 Kg/cm 2
(3.4×10 5 Kg/cm 2 ), Poisson's ratio 0.254 at room temperature
(0.14) etc.
このバルブ１のメタライズ加工を施された両端
部には夫々円筒状の継手管２がろう付けされてい
る。継手管２，２はチタン又はコバール（商品
名）等の鉄基合金等の金属材料で形成されてい
る。そして、継手管２，２には夫々Niメツキさ
れた口金３又は４が各別にろう付けまたは熔接さ
れている。口金３，４はいずれも純鉄または鉄基
合金等の金属材料で形成されている。一方の口金
３には圧入後ろう付けされて、バルブ１内におい
てこのバルブ１の軸方向に沿つて配置される陽極
５が支持されている。他方の口金４には圧入後ろ
う付けされて、バルブ１内においてこのバルブ１
の軸方向に沿つて配置されかつ陽極５に対向する
陰極６が支持されている。電極たる陽極５および
陰極６は、それぞれタングステン、トリユーテツ
ドタングステン等の耐熱性金属で形成されてい
る。そして、これら陽極５と陰極６間の電極間隙
ｇは適当に定められ、本実施例では例えば２cm以
下の短アーク用電極間隙ｇとしてある。なお、３
ａ，４ａは空気抜き用の通路である。また、いず
れか一方の口金例えば口金４にはバルブ１の内外
を連通する連通路７が形成され、この通路７に接
続してニツケル又は銅等からなる排気管８が口金
４にろう付けにより取付けられている。 Cylindrical joint pipes 2 are brazed to both metallized ends of the valve 1, respectively. The joint pipes 2, 2 are made of a metal material such as titanium or an iron-based alloy such as Kovar (trade name). A Ni-plated cap 3 or 4 is brazed or welded to the joint tubes 2, 2, respectively. The caps 3 and 4 are both made of a metal material such as pure iron or an iron-based alloy. One of the caps 3 supports an anode 5 which is press-fitted and brazed, and which is disposed within the bulb 1 along the axial direction of the bulb 1 . The other cap 4 is press-fitted and brazed, and this valve 1 is inserted into the valve 1.
A cathode 6 is supported, which is disposed along the axial direction of the anode 5 and faces the anode 5. The anode 5 and cathode 6, which are electrodes, are each made of a heat-resistant metal such as tungsten or tritated tungsten. The electrode gap g between the anode 5 and the cathode 6 is appropriately determined, and in this embodiment, the short arc electrode gap g is, for example, 2 cm or less. In addition, 3
a and 4a are air vent passages. Further, one of the caps, for example the cap 4, is formed with a communication passage 7 that communicates the inside and outside of the valve 1, and connected to this passage 7, an exhaust pipe 8 made of nickel, copper, etc. is attached to the cap 4 by brazing. It is being
また、バルブ１内には例えば陽極５側において
第３図および第４図に示す構造のゲツタ９又は第
５図および第６図に示す構造のゲツタ９が設けら
れている。つまり、第３図および第４図に例示の
ゲツタ９は、ゲツター材料を線材とし、この線材
をコイル状の小径部１０と、この小径部１０と一
体に連なるコイル状の大径部１１とに巻き加工し
て得たものである。なお、１２は大径部１１に巻
付けた短絡部材である。また、第５図および第６
図に例示のゲツタ９は、ゲツター材料を板材とし
て、この板材に第５図の展開図に示すように両端
に凹部９ａ、凸部９ｂを夫々形成するとともに、
長手方向に沿う切込線９ｃを設ける。次に、この
板材を凹部９ａと凸部９ｂとが係合するように巻
き加工して、この係合部をスポツト熔接により連
結することで大径部１１を形成するとともに、小
幅部９ｄを巻き加工して大径部１１と一体にに連
なる小径部１０を形成して得たものである。ゲツ
タ９の小径部１０はその内径が電極の径よりも若
干小さめに巻き加工され、かつ大径部１１はその
外径がバルブ１の内径に略等しく巻き加工されて
いる。そして、このゲツタ９は、その小径部１０
を陽極５に直巻して装着するとともに、大径部１
１をバルブ１の内周面に接して装着することによ
り、バルブ１内固定されている。勿論、ゲツタ９
はバルブ１と直交しかつ陰極点を通る面に対して
45゜未満の投光角度θ領域から外れた位置に配設
される。なお、ゲツタ９の装着は、バルブ１、口
金３、陽極５、一方の継手管２およびリング（後
述する。）を組立てた状態で、バルブ１の反陽極
５側の開口端から、治具を用いて挿入することで
行われ、この場合、バルブ１および継手管２のろ
う付け部と小径部１０とは、寸法ｌだけ離した状
態にして治具により位置決めされる。上記寸法ｌ
はゲツタ９のガス出しを高周波加熱により行う場
合、ろう付け部の加熱を防止するために設けられ
る。またゲツタ９は第２図に示したように、その
小径部１０を陰極６に直巻きして装着するととも
に、大径部１１をバルブ１の内周面に接して設け
てもよい。さらに、ゲツター材料には、例えば
Ti，Zr又はこれらを主成分とする合金、若しく
はTi−Zr合金等が用いられ、上記いずれのゲツ
タ９もZr製である場合を示している。 Further, within the bulb 1, for example, a getter 9 having the structure shown in FIGS. 3 and 4 or a getter 9 having the structure shown in FIGS. 5 and 6 is provided on the anode 5 side. That is, the getter 9 illustrated in FIGS. 3 and 4 uses a getter material as a wire, and this wire is formed into a coiled small diameter section 10 and a coiled large diameter section 11 that is integrally connected to the small diameter section 10. It is obtained by rolling it. Note that 12 is a short-circuiting member wrapped around the large diameter portion 11. Also, Figures 5 and 6
The getter 9 illustrated in the figure uses a getter material as a plate material, and as shown in the developed view of FIG.
A cut line 9c is provided along the longitudinal direction. Next, this plate material is wound so that the concave portion 9a and the convex portion 9b engage with each other, and the engaging portions are connected by spot welding to form the large diameter portion 11, and the narrow portion 9d is wound. It is obtained by processing to form a small diameter part 10 which is integrally connected to a large diameter part 11. The small diameter portion 10 of the getter 9 is wound so that its inner diameter is slightly smaller than the diameter of the electrode, and the large diameter portion 11 is wound so that its outer diameter is approximately equal to the inside diameter of the bulb 1. This getter 9 has a small diameter portion 10.
is installed by directly winding it around the anode 5, and the large diameter part 1
1 is mounted in contact with the inner circumferential surface of the valve 1, thereby being fixed within the valve 1. Of course, Getsuta 9
is for the plane perpendicular to bulb 1 and passing through the cathode point.
It is arranged at a position outside the range of light projection angle θ of less than 45°. To install the getter 9, insert the jig from the open end of the valve 1 on the side opposite to the anode 5 while the valve 1, the cap 3, the anode 5, one of the joint pipes 2, and the ring (described later) are assembled. In this case, the brazed portion of the valve 1 and the joint pipe 2 and the small diameter portion 10 are positioned with a distance l apart from each other using a jig. Above dimensions l
is provided to prevent the brazed portion from being heated when the getter 9 is vented by high-frequency heating. Further, as shown in FIG. 2, the getter 9 may have its small diameter portion 10 wrapped directly around the cathode 6 and mounted thereon, and its large diameter portion 11 may be provided in contact with the inner circumferential surface of the bulb 1. Additionally, getter materials include e.g.
The case is shown in which Ti, Zr, an alloy containing these as main components, a Ti-Zr alloy, or the like is used, and both getters 9 are made of Zr.
上記構造により両端を封止されたバルブ１内に
は、所定の圧力をもつて封入ガスが封じ込められ
ている。封入ガスには、キセノン、アルゴン又は
クリプトン等の不活性ガス、或いは選択された不
活性ガスに水銀、セシウム、ナトリウム、カリウ
ム、リチウム、ルビジウム等の金属蒸気を含ませ
た封入ガスが用いられ、実施例はキセノンガスを
10〜20気圧で封入した場合である。また、第１
図、第２図中１３は必要に応じてバルブ１と口金
３，４との間に挟設されるリングで、例えばセラ
ミツク材料製であり、１３ａは環状のろう材収納
溝である。さらに、１４は口金３，４の環状をな
すろう材収納溝、１５は金属製の排気管カバー、
１６はカバー１５を調整位置に固定する接着剤で
ある。 Enclosed gas is sealed at a predetermined pressure within the valve 1 whose both ends are sealed with the above structure. The sealed gas is an inert gas such as xenon, argon, or krypton, or a selected inert gas containing metal vapor such as mercury, cesium, sodium, potassium, lithium, or rubidium. An example is xenon gas.
This is the case when sealed at 10 to 20 atmospheres. Also, the first
In FIGS. 1 and 2, 13 is a ring that is inserted between the valve 1 and the caps 3 and 4 as required, and is made of, for example, a ceramic material, and 13a is an annular brazing material storage groove. Furthermore, 14 is an annular brazing material storage groove of the caps 3 and 4, 15 is a metal exhaust pipe cover,
16 is an adhesive that fixes the cover 15 in the adjusted position.
以上の構造の超高圧放電灯は、口金３および排
気管カバー１５、口金４を介して電極（つまり陽
極５および陰極６）に通電することにより、空冷
状態において点灯して使用される。 The ultra-high pressure discharge lamp having the above structure is lit and used in an air-cooled state by supplying electricity to the electrodes (that is, the anode 5 and the cathode 6) through the cap 3, the exhaust pipe cover 15, and the cap 4.
そして、この超高圧放電灯よれば光量減衰特性
を改善できる。つまり、超高圧放電灯の空冷能力
をバルブ１の陰極点に最も近い部分の表面温度が
約600℃となるようにすると、バルブ１の両端側
は約300〜400℃となるが、この低温部分にはZr
製ゲツタ９の大径部１１が内接して装着されてい
る。このため、バルブ１との熱伝導により大径部
１１の温度は、H2ガスに対して高い活性を示す
温度域になつて、バルブ１内のH2ガスを主とし
て吸着する。また、陽極５は点灯中800〜1000℃
になるため、ゲツタ９の小径部１０の温度が、有
害ガスに対して高い活性を示す高温域となつて、
バルブ１内のH2ガス以外の有害ガスを吸着する
とともに、昇温する過程で一度吸着したH2ガス
（なお、H2Oガスから分離されるH2ガスを含む）
を放出する。但し、H2Oガスの放出温度は700℃
以上であるが、約870℃ではH2ガスを吸着する。
勿論、この放出されたH2ガスは上記大径部１１
に吸着されることは言うまでもない。なお、小径
部１０を陰極６に直巻した場合も陰極６の中間部
が600〜900℃となるため、同様な有害ガスの吸着
作用が営まれる。 According to this ultra-high pressure discharge lamp, the light intensity attenuation characteristics can be improved. In other words, if the air cooling capacity of the ultra-high pressure discharge lamp is adjusted so that the surface temperature of the part of bulb 1 closest to the cathode spot is approximately 600°C, the temperature at both ends of bulb 1 will be approximately 300 to 400°C, but this low-temperature part Zr for
The large diameter portion 11 of the getter 9 is inscribed and installed. Therefore, due to heat conduction with the bulb 1, the temperature of the large diameter portion 11 becomes a temperature range showing high activity toward H 2 gas, and the large diameter portion 11 mainly adsorbs the H 2 gas inside the bulb 1. In addition, the anode 5 is heated to 800 to 1000℃ during lighting.
Therefore, the temperature of the small diameter portion 10 of the getter 9 becomes a high temperature range showing high activity against harmful gases,
In addition to adsorbing harmful gases other than H 2 gas in valve 1, H 2 gas that is once adsorbed during the temperature rising process (including H 2 gas separated from H 2 O gas)
emit. However, the release temperature of H 2 O gas is 700℃
As mentioned above, H 2 gas is adsorbed at about 870°C.
Of course, this released H 2 gas is transferred to the large diameter portion 11.
Needless to say, it is attracted to. Note that even when the small diameter portion 10 is wound directly around the cathode 6, the temperature at the middle portion of the cathode 6 is 600 to 900°C, so that a similar harmful gas adsorption effect is performed.
このようなH2ガスの吸着により、光量減衰特
性が第７図中曲線Ｄで示すように曲線Ａに対して
改善されることが、試験の結果確認された。 As a result of the test, it was confirmed that by adsorption of H 2 gas, the light intensity attenuation characteristic was improved as shown by curve D in FIG. 7 compared to curve A.
また、上記のようにゲツタ９が全ての有害ガス
を吸着することができるから、有害ガスによる陰
極６からの電子放出が妨げられることがない。こ
のことによつて点火性能も改善できる。ちなみ
に、23時間点灯し、次に１時間消灯した後に点灯
することを約21日間繰返した試験結果は、第８図
中点線Ｅで示されるように点灯積算時間の大小に
関係なく、高圧パルスを１回印加するだけで、毎
回点火することが確められた。 Furthermore, since the getter 9 can adsorb all harmful gases as described above, electron emission from the cathode 6 is not hindered by the harmful gases. This also improves ignition performance. By the way, the results of a test in which the lights were turned on for 23 hours, then turned off for 1 hour, and then turned on again for about 21 days, as shown by the dotted line E in the middle of Figure 8, showed that regardless of the size of the cumulative lighting time, high-voltage pulses were not applied. It was confirmed that ignition occurred every time with just one application.
さらに、上記構造の超高圧放電灯によれば、そ
のゲツタ９は電極５又は６に直巻きされている。
つまり小径部１０がその弾性力で電極５又は６を
巻締めた状態に設けられており、加えて大径部１
１がバルブ１に内接されているから、特別な保持
手段を必要とすることなくゲツタ９を定位置に保
持できる。 Furthermore, according to the ultra-high pressure discharge lamp having the above structure, the getter 9 is directly wound around the electrode 5 or 6.
In other words, the small diameter part 10 is provided in a state where the electrode 5 or 6 is wound tightly by its elastic force, and in addition, the large diameter part 1
1 is inscribed in the valve 1, the getter 9 can be held in a fixed position without requiring any special holding means.
なお、本考案の実施に当つては、考案の要旨に
反しない限り、バルブ、継手管、口金、陽極、陰
極、排気管、ゲツタ、小径部、大径部等の具体的
な構造、形状、位置、材質、並びに封入ガスの成
分等は、上記実施例に制約されず種々の態様に構
成して実施できることは勿論である。 In implementing the present invention, the specific structures, shapes, etc. of valves, joint pipes, caps, anodes, cathodes, exhaust pipes, getters, small diameter parts, large diameter parts, It goes without saying that the position, material, and components of the filled gas are not limited to the above embodiments, and can be implemented in various configurations.
以上説明した本考案は上記実用新案登録請求の
範囲に記載の構成を要旨とする。したがつて、バ
ルブに内接されてH2ガスに対して活性な温度域
で用いられる大径部と、電極に直巻きされてH2
ガス以外の有害ガスに対して活性な温度域で用い
られる小径部とからなるゲツタを備えたことによ
り、光減衰特性および点火特性を改善できる効果
がある。そして上記ゲツタは小径部と大径部とが
つながつた一体構造であるから、そのバルブ内へ
の取付けが簡単であるとともに、小径部が電極に
直巻きされかつ大径部がバルブに内接される構造
によつて、特別な固定保持手段を必要とすること
なく、ゲツタを定位置に確実に保持できる効果が
ある。 The gist of the present invention described above is the structure described in the scope of the above-mentioned utility model registration claims. Therefore, there is a large-diameter part that is inscribed in the bulb and used in a temperature range where H2 gas is active, and a large-diameter part that is directly wound around the electrode and used in a temperature range where H2 gas is active.
By providing a getter consisting of a small diameter portion that is used in a temperature range that is active against harmful gases other than gases, there is an effect that light attenuation characteristics and ignition characteristics can be improved. Since the above getter has an integral structure in which the small diameter part and the large diameter part are connected, it is easy to install it inside the valve, and the small diameter part is directly wound around the electrode and the large diameter part is inscribed in the valve. This structure has the effect of reliably holding the getter in place without requiring any special fixing and holding means.
第１図は本考案の一実施例に係る短アーク形キ
セノンランプを拡大して示す縦断側面図、第２図
はゲツタの配設態様を例示する一部の縦断側面
図、第３図および第４図は上記ランプに用いたゲ
ツタの一例を示し、第３図は側面図、第４図は第
３図中矢印方向から見た図、第５図および第６
図は他のゲツタを例示し、第５図は展開図、第６
図は斜視図、第７図は光量の減衰傾向を示す特性
図、第８図は点火性能を示す特性図である。
１……バルブ、２……継手管、３，４……口
金、５……陽極、６……陰極、８……排気管、９
……ゲツタ、１０……小径部、１１……大径部。
FIG. 1 is an enlarged longitudinal sectional side view of a short arc xenon lamp according to an embodiment of the present invention, FIG. Fig. 4 shows an example of the getter used in the above lamp, Fig. 3 is a side view, Fig. 4 is a view seen from the direction of the arrow in Fig. 3, Figs.
The figures illustrate other getters. Figure 5 is a developed view, and Figure 6 is a developed view.
The figure is a perspective view, FIG. 7 is a characteristic diagram showing the attenuation tendency of the amount of light, and FIG. 8 is a characteristic diagram showing ignition performance. 1... Valve, 2... Joint pipe, 3, 4... Base, 5... Anode, 6... Cathode, 8... Exhaust pipe, 9
...Getta, 10...Small diameter part, 11...Large diameter part.
Claims (1)
ブの両端部に、夫々継手管をろう付けするととも
に、これら継手管には夫々口金をろう付けまたは
熔接し、一方の口金にはバルブ内においてこのバ
ルブの軸方向に沿つて配置される陽極を支持し、
他方の口金にはバルブ内においてこのバルブの軸
方向に沿つて配置されて陽極に対向する陰極を支
持し、かついずれか一方の口金にはバルブ内と連
通する排気管を取付け、陽極および陰極のいずれ
か一方にゲツタの小径部を直巻きして装着すると
ともに、この小径部に一体に連なるゲツタの大径
部をバルブ内周面に接して装着し、バルブ内には
封入ガスを封じ込めてなることを特徴とする超高
圧放電灯。 Joint pipes are brazed to both ends of a straight bulb made of translucent alumina, and caps are brazed or welded to each of these coupling pipes, and one of the caps has this fitting inside the bulb. supports an anode disposed along the axial direction of the valve;
The other base supports a cathode that is arranged along the axial direction of the valve and faces the anode, and one of the bases is attached with an exhaust pipe that communicates with the inside of the valve, and the anode and cathode are connected to each other. The small diameter part of the getter is directly wrapped around either side and attached, and the large diameter part of the getter that is integrally connected to this small diameter part is attached in contact with the inner peripheral surface of the valve, and the sealed gas is sealed inside the valve. An ultra-high pressure discharge lamp characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17387682U JPS5977766U (en) | 1982-11-17 | 1982-11-17 | ultra high pressure discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17387682U JPS5977766U (en) | 1982-11-17 | 1982-11-17 | ultra high pressure discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5977766U JPS5977766U (en) | 1984-05-25 |
| JPS6321889Y2 true JPS6321889Y2 (en) | 1988-06-16 |
Family
ID=30378671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17387682U Granted JPS5977766U (en) | 1982-11-17 | 1982-11-17 | ultra high pressure discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5977766U (en) |
-
1982
- 1982-11-17 JP JP17387682U patent/JPS5977766U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5977766U (en) | 1984-05-25 |
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