JPH03297044A - Discharge lamp device - Google Patents
Discharge lamp deviceInfo
- Publication number
- JPH03297044A JPH03297044A JP9919690A JP9919690A JPH03297044A JP H03297044 A JPH03297044 A JP H03297044A JP 9919690 A JP9919690 A JP 9919690A JP 9919690 A JP9919690 A JP 9919690A JP H03297044 A JPH03297044 A JP H03297044A
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- ultraviolet rays
- ultraviolet
- glass bulb
- discharge
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052753 mercury Inorganic materials 0.000 abstract description 3
- 229910001507 metal halide Inorganic materials 0.000 abstract description 3
- 150000005309 metal halides Chemical class 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 201000000849 skin cancer Diseases 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は放電ランプを光源とする放電ランプ装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a discharge lamp device using a discharge lamp as a light source.
〔従来技術及び発明の解決しようとする課題〕最近の自
動車用ランプ業界では、発光効率及び演色性が良好で、
しかも寿命が長いという点から放電ランプが注目されて
いる。しかし、例えば放電ランプの一種であるメタルハ
ライドランプでは、放電空間内の封止ガス（水銀、沃化
物、Ｘｅガス）の関係上１発光時に可視光線とともに多
量の紫外線を発生する。そして波長域２４０〜２９０
ｎ ｍの紫外線はたんばく質の分子を破壊し、波長域２
９０〜３２０ｎｍの紫外線は皮膚がん発生の原因となり
、波長域３６０〜３７０ｎｍの紫外線は樹脂材を破壊す
る等といわれている。このように放電ランプの発光は人
体等に有害な紫外線を含むことから、長時間にわたって
照射を受けると健康上好ましくなく、また放電ランプ周
辺の樹脂部材も劣化が早いという問題があった。[Prior art and problems to be solved by the invention] In the recent automotive lamp industry, lamps with good luminous efficiency and color rendering properties,
Furthermore, discharge lamps are attracting attention because of their long lifespan. However, for example, a metal halide lamp, which is a type of discharge lamp, generates a large amount of ultraviolet light as well as visible light during one light emission due to the sealing gas (mercury, iodide, Xe gas) in the discharge space. and wavelength range 240-290
nm ultraviolet rays destroy protein molecules, and wavelength range 2
It is said that ultraviolet rays in the wavelength range of 90 to 320 nm cause skin cancer, and ultraviolet rays in the wavelength range of 360 to 370 nm destroy resin materials. As described above, since the light emitted from the discharge lamp contains ultraviolet rays that are harmful to the human body, there is a problem in that exposure to the irradiation over a long period of time is not good for health, and the resin members around the discharge lamp deteriorate quickly.
本発明は前記従来技術の問題点に鑑みなされたもので、
その目的は放電ランプから発生する紫外線を低減するこ
とのできる放電ランプ装置を提供することにある。The present invention has been made in view of the problems of the prior art,
The purpose is to provide a discharge lamp device that can reduce ultraviolet light emitted from the discharge lamp.
前記目的を達成するために、本発明に係る放電ランプ装
置においては、密閉ガラス球内に放電電極が対設された
放電空間が形成され、一端を前記放電電極に接続した一
対のリード線が、前記密閉ガラス球に一体化された一対
のピンチ部にそれぞれ封着されて外部に導出する構造の
放電ランプを備えた放電ランプ装置において、前記放電
ランプの少なくとも密閉ガラス球外周面に紫外線遮蔽膜
を形成するようにしたものである。In order to achieve the above object, in the discharge lamp device according to the present invention, a discharge space in which discharge electrodes are disposed opposite to each other is formed in a sealed glass bulb, and a pair of lead wires having one end connected to the discharge electrode, In a discharge lamp device comprising a discharge lamp configured to be guided to the outside by being sealed to a pair of pinch parts integrated with the sealed glass bulb, an ultraviolet shielding film is provided on at least the outer peripheral surface of the sealed glass bulb of the discharge lamp. It was designed so that it could be formed.
密閉ガラス球内の放電空間からの発光は、密閉ガラス球
外周面に形成されている紫外線遮蔽膜を透過する際に紫
外線だけがカットされる。When the light emitted from the discharge space inside the sealed glass bulb passes through the ultraviolet shielding film formed on the outer peripheral surface of the sealed glass bulb, only the ultraviolet rays are blocked.
次に、本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第１図及び第２図は、放電ランプ装置の一実施例を示す
もので、第１図は放電ランプ装置の一部を断面で示す側
面図、第２図は同ランプ装置に使用される放電ランプの
拡大縦断面図である。Figures 1 and 2 show an embodiment of a discharge lamp device. Figure 1 is a side view showing a part of the discharge lamp device in cross section, and Figure 2 is a discharge lamp device used in the lamp device. FIG. 3 is an enlarged vertical cross-sectional view of the lamp.
放電ランプ装置１ｏは１発光部である放電ランプ１２と
、Ｌ字形状のソケット２０から突設されて放電ランプ１
２を支持するリードサポート２２゜２４とから主として
構成されている。The discharge lamp device 1o includes a discharge lamp 12 which is a light emitting part, and a discharge lamp 1 which is protruded from an L-shaped socket 20.
The lead supports 22 and 24 support the lead supports 2 and 2.
放電ランプ１２は、石英ガラス管の両端部がピンチされ
て、楕円体形状の密閉ガラス球１３の両端部にピンチ部
１４．１４が形成された構造で、ガラス球１３内には始
動用希ガス、水銀及び金属ハロゲン化物が封入された放
電空間Ｓが形成されている。また放電空間Ｓ内にはタン
グステン製の放電電極１５．１５が対向配置されており
、放電電極１５．１５はピンチ部１４．１４に封着され
たモリブデン箔１６に接続され、ピンチ部１４の端部か
らはモリブデン箔１６に接続されたリード線１８．１８
が導出している。そしてリード線１８．１８はソケット
２０内の絶縁性ベースにインサート成形されてベース前
方に突出する長短一対のリードサポート２２．２４に金
属支持体１９Ａ。The discharge lamp 12 has a structure in which pinched portions 14 and 14 are formed at both ends of an ellipsoidal sealed glass bulb 13 by pinching both ends of a quartz glass tube. , a discharge space S is formed in which mercury and metal halides are sealed. Further, a discharge electrode 15.15 made of tungsten is disposed facing each other in the discharge space S, and the discharge electrode 15.15 is connected to a molybdenum foil 16 sealed to the pinch part 14. A lead wire 18.18 is connected to the molybdenum foil 16 from the
is derived. The lead wires 18.18 are inserted into an insulating base in the socket 20 and are attached to a metal support 19A on a pair of long and short lead supports 22.24 that protrude in front of the base.
１９Ｂを介して支持されており、放電ランプ１２はリー
ド線１８．１８を介してリードサポート２２．２４に両
端支持された構造となっている。なお符号１７はリード
ステー２２に嵌合されたセラミック製の放電防止用絶縁
筒体である。19B, and the discharge lamp 12 is supported at both ends by lead supports 22.24 via lead wires 18.18. Note that the reference numeral 17 is an insulating cylindrical body made of ceramic and fitted to the lead stay 22 for preventing discharge.
符号２５はソケット２０に一体に形成されている焦点リ
ングで、この放電ランプ装置１０を自動車用ヘッドラン
プのバルブとして使用する際に、放電ランプ装置１０の
リフレクタ−３０に対する位置決め部材として作用する
。また焦点リング２５の外周には３個の爪２５ａが突設
されており、この爪２５ａがリフレクタ−に形成されて
いるソケット挿着孔形成壁３２とソケットフィクチャー
３４間に挾持されることにより、放電ランプ装置１０が
バルブ挿着孔３１に固定保持される。絶縁性ベースを収
容するソケット基部２６の外周にはシール用の○リング
２７が装着されており、ソケット基部２６とバルブ挿着
孔３１との係合部におけるシールを確保するようになっ
ている。Reference numeral 25 denotes a focus ring that is integrally formed with the socket 20, and acts as a positioning member for the reflector 30 of the discharge lamp device 10 when the discharge lamp device 10 is used as a bulb for an automobile headlamp. Three claws 25a are protruded from the outer periphery of the focusing ring 25, and these claws 25a are held between the socket fixture 34 and the socket insertion hole forming wall 32 formed in the reflector. , the discharge lamp device 10 is fixedly held in the bulb insertion hole 31. A sealing ring 27 is attached to the outer periphery of the socket base 26 that accommodates the insulating base to ensure a seal at the engagement portion between the socket base 26 and the bulb insertion hole 31.
放電ランプ１２の外周面には、第２図に示されるように
、ＺｎＯよりなる紫外線遮蔽膜４０Ａがコーティングさ
れており、この紫外線遮蔽膜４０Ａが放電空間Ｓにおけ
る発光から紫外線を吸収し。As shown in FIG. 2, the outer peripheral surface of the discharge lamp 12 is coated with an ultraviolet shielding film 40A made of ZnO, and this ultraviolet shielding film 40A absorbs ultraviolet rays emitted from the discharge space S.
紫外線のカットされた可視光だけが放電ランプ１２から
出射されるようになっている。紫外線遮蔽膜４０Ａを形
成するには、ＺｎＯの微粒子を無機系バインダーに分散
させ（濃度２０〜３０％）、これをディッピングやスプ
レーや蒸着等の適宜方法で放電ランプ１２の表面に塗布
する。なお波長域３７０ｎｍより短い紫外線の透過率を
Ｏとするためには１．６μｍ以上の膜厚が必要で、剥離
防止という面からは５μｍ以下の膜厚とすることが望ま
しい。またカットできる紫外線の波長域は紫外線遮蔽膜
の周辺温度によって変化する（高温となるとカットされ
る波長域が長波長側にずれる）ため、少なくとも波長域
３７０〜３８０．ｇｍ以下の紫外線がカットできるよう
な膜厚に調整する。Only visible light from which ultraviolet rays have been cut is emitted from the discharge lamp 12. To form the ultraviolet shielding film 40A, fine particles of ZnO are dispersed in an inorganic binder (concentration 20 to 30%), and this is applied to the surface of the discharge lamp 12 by an appropriate method such as dipping, spraying, or vapor deposition. Note that in order to set the transmittance of ultraviolet rays in the wavelength range shorter than 370 nm to O, a film thickness of 1.6 μm or more is required, and from the standpoint of preventing peeling, a film thickness of 5 μm or less is desirable. Furthermore, the wavelength range of ultraviolet rays that can be cut varies depending on the ambient temperature of the ultraviolet shielding film (when the temperature becomes high, the wavelength range that can be cut shifts to the longer wavelength side), so at least the wavelength range of 370 to 380. Adjust the film thickness so that it can block ultraviolet rays below gm.
なお膜厚の調整は、ディッピング引き上げ速度を変える
ことにより行い、また塗布回数や蒸着回数を変えること
によっても可能である。Note that the film thickness can be adjusted by changing the dipping pulling speed, or by changing the number of times of coating and the number of times of vapor deposition.
なお前記した実施例では、紫外線遮蔽膜をＺｎＯによっ
て構成したが、ＺｎＯより紫外線吸収効果は劣るが、Ｔ
ｉ Ｏ，、Ｃａ Ｏ，Ｆ ｅ、Ｏ，等の紫外線吸収作
用のある化合物よりなる膜であってもよい。In the above-described embodiment, the ultraviolet shielding film was made of ZnO, but although its ultraviolet absorption effect is inferior to that of ZnO, T
The film may be made of a compound having an ultraviolet absorbing effect, such as i 2 O, Ca 2 O, Fe, O, or the like.
第３図は本発明の第２の実施例の要部を示すもので、放
電ランプの密閉ガラス球の一部を拡大して示す断面図で
ある。FIG. 3 shows the main parts of a second embodiment of the present invention, and is an enlarged sectional view of a part of a sealed glass bulb of a discharge lamp.
この図において、符号４０Ｂは放電ランプ１２の外周面
に形成されている紫外線遮蔽膜で、この紫外線遮蔽膜４
０Ｂは、Ｔ ｉ Ｏ２，Ｓ ｉ Ｏ２，Ｍ ｇＦ、Ｔａ
２０５等のそれぞれ屈折率を異にする紫外線吸収作用の
ある化合物よりなる誘電体多層膜によって構成されてい
る。図では、Ｔｉ０２層４０Ｂ１とＳｉ０２層４０Ｂ、
が交互に積層された誘電体多層膜によって紫外線遮蔽膜
４０Ｂが構成されており、波長域３６０ｎｍ以下の紫外
線が５ｉ０２暦、Ｔｉｅ、暦によってそれぞれ吸収され
、波長域３６０〜３８０ｎｍの紫外線は各誘電体層間境
界面での反射光との相殺によって打ち消される。In this figure, reference numeral 40B denotes an ultraviolet shielding film formed on the outer peripheral surface of the discharge lamp 12, and this ultraviolet shielding film 4
0B is T i O2, S i O2, M gF, Ta
The dielectric multilayer film is composed of a compound having an ultraviolet absorbing effect and having a different refractive index, such as 205. In the figure, a Ti02 layer 40B1, a Si02 layer 40B,
The ultraviolet shielding film 40B is made up of a dielectric multilayer film in which are alternately laminated, and ultraviolet rays in the wavelength range of 360 nm or less are absorbed by the 5i02 calendar, Tie, and Calendar, and ultraviolet rays in the wavelength range of 360 to 380 nm are absorbed by each dielectric. This is canceled out by the reflected light at the interlayer interface.
またＴｉ０２層に代えてＴａ２０６層とした多層膜、即
ち、Ｔａ、Ｏ，層とＳ ｉ Ｏ，層とが交互に積層され
た構造であってもよく、この場合には、波長域３００ｎ
ｍ以下の紫外線が各誘電体層によって吸収され、波長域
３００〜３８０ｎｍの紫外線は各誘電体層間境界面での
反射光との相殺によって打ち消される。さらにＴ ｉ
Ｏ２層とＭｇＦ層とが交互に積層された多層膜構造であ
ってもよい。即ち、各誘電体層（例えば４０Ｂ１．４０
Ｂ２）の膜厚ｄは、ｄ −ｎ ／ ４λ（λ：打ち消し
たい波長、ｎ：誘電体の屈折率）に設定されており、こ
の膜厚ｄを適切な値とすることにより、各誘電体層間境
界面での反射光の位相が入射光の位相に対し反転し、こ
の反射光が波長λの紫外線を打ち消すように作用する。In addition, a multilayer film with a Ta206 layer instead of the Ti02 layer, that is, a structure in which Ta, O, and SiO, layers are alternately laminated may be used. In this case, the wavelength range is 300 nm.
Ultraviolet rays having a wavelength of 300 to 380 nm are absorbed by each dielectric layer, and ultraviolet rays having a wavelength of 300 to 380 nm are canceled out by the reflected light at the interface between each dielectric layer. Furthermore, T i
A multilayer structure in which O2 layers and MgF layers are alternately laminated may be used. That is, each dielectric layer (for example, 40B1.40
The film thickness d of B2) is set to d - n / 4λ (λ: wavelength to be canceled, n: refractive index of the dielectric material), and by setting this film thickness d to an appropriate value, each dielectric material The phase of the reflected light at the interlayer interface is reversed with respect to the phase of the incident light, and this reflected light acts to cancel out the ultraviolet light having the wavelength λ.
また誘電体層の厚さは、発光部である放電空間Ｓからの
距離が遠くなる程、厚くされており、カットされる紫外
線の波長域が変わることを防止している。即ち、紫外線
遮蔽膜に吸収される紫外線の波長域は、膜への光の入射
角に比例して短波長側にずれる。このため、紫外線遮蔽
膜（誘電体多層膜）４０Ｂの膜厚ｔを放電ランプの長手
方向に均一とした場合には、放電ランプの前後端部にお
ける紫外線吸収作用が悪いという問題がある。さらに具
体的に言えば、放電空間に略正対し、光の入射角が略Ｏ
に近い密閉ガラス球領域に比べ、ピンチ部１４の端部側
径、紫外線遮蔽膜（誘電体多層膜）への光の入射角が大
きく、紫外線カツト作用が劣ることとなる。そこで、第
４図に示されるように、放電ランプのピンチ部１４にお
いては端部側径、各誘電体層４０Ｂｌ、４０Ｂ２の膜厚
を厚く（紫外線遮蔽膜４０Ｂの膜厚ｔを厚く）シ、放電
ランプ１２のどの位置においてもカットされる紫外線の
波長域が略同じとなるように調整されている。Further, the thickness of the dielectric layer increases as the distance from the discharge space S, which is the light emitting part, increases, thereby preventing the wavelength range of the ultraviolet rays to be cut from changing. That is, the wavelength range of ultraviolet light absorbed by the ultraviolet shielding film shifts toward shorter wavelengths in proportion to the angle of incidence of light on the film. Therefore, if the thickness t of the ultraviolet shielding film (dielectric multilayer film) 40B is made uniform in the longitudinal direction of the discharge lamp, there is a problem that the ultraviolet absorption effect at the front and rear ends of the discharge lamp is poor. More specifically, it is approximately directly facing the discharge space, and the incident angle of light is approximately O.
Compared to the closed glass bulb area close to the area, the end diameter of the pinch portion 14 and the incident angle of light to the ultraviolet shielding film (dielectric multilayer film) are larger, and the ultraviolet blocking effect is inferior. Therefore, as shown in FIG. 4, in the pinch portion 14 of the discharge lamp, the end diameter and the film thickness of each dielectric layer 40Bl, 40B2 are increased (the film thickness t of the ultraviolet shielding film 40B is increased). Adjustments are made so that the wavelength range of ultraviolet rays cut is approximately the same at any position of the discharge lamp 12.
第５図は本発明の第２の実施例の要部である放電ランプ
を示している。FIG. 5 shows a discharge lamp which is the main part of a second embodiment of the present invention.
この実施例では、放電ランプ１２のピンチ部１４の外周
面に、符号５０で示すブラックコートと呼ばれる遮光塗
装部が形成されており、放電空間Ｓにおける発光はピン
チ部１４からは出射できない。したがってこの第２の実
施例に示す放電ランプ装置をヘッドランプ用のバルブと
して使用する場合には、運転者等にとって有害な直射光
の発生がない。勿論、遮光塗装部５０では紫外線もカッ
トされる。なお遮光塗装部５０の形成領域は、０５７０
度であって、少なくともピンチ部１４の全面を隠すこと
のできる領域とする。In this embodiment, a light-shielding coating called a black coat, indicated by reference numeral 50, is formed on the outer circumferential surface of the pinch portion 14 of the discharge lamp 12, so that the light emitted in the discharge space S cannot be emitted from the pinch portion 14. Therefore, when the discharge lamp device shown in the second embodiment is used as a bulb for a headlamp, no direct light is generated that is harmful to the driver or the like. Of course, the light-shielding coating section 50 also blocks ultraviolet rays. Note that the formation area of the light-shielding coating portion 50 is 0570
The area is such that at least the entire surface of the pinch portion 14 can be hidden.
以上の説明から明かなように、本発明に係る放電ランプ
装置によれば、密閉ガラス球内の放電空間からの発光は
、密閉ガラス球外周面に形成されている紫外線遮蔽膜を
透過する際に紫外線だけがカットされるので、紫外線の
発生のない放電ランプ装置が得られる。As is clear from the above description, according to the discharge lamp device according to the present invention, light emitted from the discharge space inside the sealed glass bulb is transmitted through the ultraviolet shielding film formed on the outer peripheral surface of the sealed glass bulb. Since only ultraviolet rays are cut, a discharge lamp device that does not generate ultraviolet rays can be obtained.
第１図は本発明の第１の実施例である放電ランプ装置の
一部を断面で示す側面図、第２図は同ランプ装置に使用
される放電ランプの拡大縦断面図、第３図は紫外線遮蔽
膜の他の例を示す要部拡大断面図、第４図は紫外線遮蔽
膜の膜厚を調整する手段を説明する説明図、第５図は本
発明の他の実施例の要部である放電ランプの縦断面図で
ある。
１ｏ・・・放電ランプ装置、
１２・・・放電ランプ、
３・・・密閉ガラス球。
４・・・ピンチ部、
５・・・放電電極。
８・・・リード線、
ＯＡ、４０Ｂ・・・紫外線遮蔽膜、
・・・放電空間。FIG. 1 is a side view showing a part of a discharge lamp device according to a first embodiment of the present invention in cross section, FIG. 2 is an enlarged vertical cross-sectional view of a discharge lamp used in the lamp device, and FIG. FIG. 4 is an explanatory diagram illustrating means for adjusting the film thickness of the ultraviolet ray shielding film; FIG. 5 is an enlarged sectional view of the main part showing another example of the ultraviolet ray shielding film; FIG. 5 shows the main part of another embodiment of the present invention. FIG. 1 is a longitudinal cross-sectional view of a certain discharge lamp. 1o...discharge lamp device, 12...discharge lamp, 3...closed glass bulb. 4...Pinch portion, 5...Discharge electrode. 8...Lead wire, OA, 40B...Ultraviolet shielding film,...Discharge space.
Claims (1)
が形成され、一端を前記放電電極に接続した一対のリー
ド線が、前記密閉ガラス球に一体化された一対のピンチ
部にそれぞれ封着されて外部に導出する構造の放電ラン
プを備えた放電ランプ装置において、前記放電ランプの
少なくとも密閉ガラス球外周面に紫外線遮蔽膜が形成さ
れたことを特徴とする放電ランプ装置。(1) A discharge space with opposing discharge electrodes is formed in the sealed glass bulb, and a pair of lead wires, one end of which is connected to the discharge electrode, is connected to a pair of pinch parts integrated in the sealed glass bulb, respectively. 1. A discharge lamp device comprising a discharge lamp having a structure in which the discharge lamp is sealed and led to the outside, characterized in that an ultraviolet shielding film is formed on at least the outer peripheral surface of a sealed glass bulb of the discharge lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9919690A JPH03297044A (en) | 1990-04-17 | 1990-04-17 | Discharge lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9919690A JPH03297044A (en) | 1990-04-17 | 1990-04-17 | Discharge lamp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03297044A true JPH03297044A (en) | 1991-12-27 |
Family
ID=14240897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9919690A Pending JPH03297044A (en) | 1990-04-17 | 1990-04-17 | Discharge lamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03297044A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960011566A (en) * | 1994-09-12 | 1996-04-20 | 타실로 다우너, 조아킴 베르너 | Mercury vapor high pressure short arc discharge lamp, method and apparatus for exposing a semiconductor wafer to radiation emitted from the lamp |
| KR100375613B1 (en) * | 1994-01-18 | 2003-05-12 | 오스람-멜코 리미티드 | Metal halide lamp |
| KR100392387B1 (en) * | 2000-03-14 | 2003-07-23 | 도시바 라이텍쿠 가부시키가이샤 | An ultraviolet ray lamp, and sterilizers and cleaners using the lamp |
-
1990
- 1990-04-17 JP JP9919690A patent/JPH03297044A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100375613B1 (en) * | 1994-01-18 | 2003-05-12 | 오스람-멜코 리미티드 | Metal halide lamp |
| KR960011566A (en) * | 1994-09-12 | 1996-04-20 | 타실로 다우너, 조아킴 베르너 | Mercury vapor high pressure short arc discharge lamp, method and apparatus for exposing a semiconductor wafer to radiation emitted from the lamp |
| KR100392387B1 (en) * | 2000-03-14 | 2003-07-23 | 도시바 라이텍쿠 가부시키가이샤 | An ultraviolet ray lamp, and sterilizers and cleaners using the lamp |
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