JPH09161532A - Discharge lamp device - Google Patents
Discharge lamp deviceInfo
- Publication number
- JPH09161532A JPH09161532A JP7318193A JP31819395A JPH09161532A JP H09161532 A JPH09161532 A JP H09161532A JP 7318193 A JP7318193 A JP 7318193A JP 31819395 A JP31819395 A JP 31819395A JP H09161532 A JPH09161532 A JP H09161532A
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- lens
- rare gas
- lens body
- cover
- 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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は放電灯装置に関
し、特にファクシミリ,イメ−ジスキャナ,コピ−機な
どのOA機器に適用される原稿照射装置における集光機
能を有する放電灯装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp device, and more particularly to an improvement of a discharge lamp device having a light condensing function in a document irradiation device applied to OA equipment such as a facsimile, an image scanner and a copy machine.
【0002】[0002]
【従来の技術】一般に、原稿照射装置は、例えば図7に
示すように、放電灯1からの放射光を原稿面Pに照射
し、原稿面Pからの反射光をCCD素子よりなるライン
センサ−Sにて受光するように構成されている。2. Description of the Related Art Generally, as shown in FIG. 7, a document irradiating device irradiates a document surface P with light emitted from a discharge lamp 1 and reflects light from the document surface P with a line sensor composed of CCD elements. The light is received at S.
【0003】この装置に適用される放電灯としては、装
置の稼働態勢に応じて直ちに点灯し、かつその光量も極
めて短時間に所定の光量以上例えば100%程度にまで
達することが要求されており、図8に示す希ガス放電灯
が提案されている。The discharge lamp applied to this device is required to be immediately turned on according to the operating condition of the device, and its light amount to reach a predetermined light amount or more, for example, about 100% in an extremely short time. , The noble gas discharge lamp shown in FIG. 8 has been proposed.
【0004】同図において、希ガス放電灯1は、両端が
封止され、管径が例えば5〜10mm程度の直管形のガ
ラスバルブ2と、このガラスバルブ2の内面に形成され
た蛍光体よりなる発光層3と、ガラスバルブ2の外周面
に、それの長手方向に沿って適宜の間隔を保って形成さ
れた一対の帯状の外部電極4,5とから構成されてお
り、ガラスバルブ内の密閉空間には例えばキセノンガス
を主成分とする希ガスが封入されている。In the figure, a rare gas discharge lamp 1 is sealed at both ends and has a straight tube type glass bulb 2 having a tube diameter of, for example, about 5 to 10 mm, and a phosphor formed on the inner surface of the glass bulb 2. And a pair of strip-shaped external electrodes 4 and 5 formed on the outer peripheral surface of the glass bulb 2 at appropriate intervals along the longitudinal direction thereof. The enclosed space is filled with, for example, a rare gas containing xenon gas as a main component.
【0005】この希ガス放電灯1は、外部電極4,5に
高周波高電圧(例えば25KHzで2500Vp−p)
を印加することによりキセノンガスの放電が生じ、キセ
ノンガスの励起線(147nm)によって発光層3が励
起されて発光するものであり、光は外部電極4,5の間
の光放出部2aから放出される。特に、この放電灯1に
は水銀が用いられていないために、点灯後における光量
の立ち上がりが急峻であり、ほぼ点灯と同時に光量が1
00%近くにまで達する上、光量や放電電圧が周囲温度
の影響を殆んど受けないという特徴を有している。In this rare gas discharge lamp 1, high frequency high voltage (for example, 2500 Vp-p at 25 KHz) is applied to the external electrodes 4 and 5.
Is applied to generate a discharge of xenon gas, the light-emitting layer 3 is excited by the excitation line (147 nm) of the xenon gas to emit light, and light is emitted from the light emitting portion 2a between the external electrodes 4 and 5. To be done. In particular, since mercury is not used in the discharge lamp 1, the light amount rises sharply after lighting, and the light amount is almost 1
It has a characteristic that the light amount and the discharge voltage are hardly affected by the ambient temperature in addition to reaching nearly 100%.
【0006】従って、この希ガス放電灯1を図7に示す
原稿照射装置に、光放出部2aが原稿面Pに対向し、か
つ原稿面Pとの間隔が6〜12mm程度となるように配
置した場合には、原稿面Pにおける照度はほぼ2000
0(lx)程度であり、原稿の読取りを確実に行なうこ
とができるものである。Therefore, the rare gas discharge lamp 1 is arranged in the original document irradiation device shown in FIG. 7 so that the light emitting portion 2a faces the original document surface P and the distance from the original document surface P is about 6 to 12 mm. In this case, the illuminance on the document surface P is almost 2000.
It is about 0 (lx), and it is possible to reliably read the document.
【0007】しかしながら、近時、OA機器は、その処
理能力を高め、事務処理の効率化を図るために、原稿の
送り速度をさらに高速化する傾向にあり、原稿の読取り
精度(解像度)が損なわれる方向にある。However, in recent years, in order to improve the processing capability and improve the efficiency of office processing, the OA equipment tends to further increase the document feeding speed, which impairs the document reading accuracy (resolution). There is a direction.
【0008】従って、原稿の送り速度の高速化に対応す
るには、原稿面Pの照度を高めるように、放電灯の光出
力(光量)を増加すればよい。例えば放電灯1の管径を
15mm程度以上に太くすると共に管入力(電力)を増
加させれば、比較的容易に光量を増加させることができ
るものの、この種装置では原稿面Pと放電灯との間隔が
6〜12mm程度と狭いために、かかる間隔以上に太い
管径の放電灯は配置が難しくなる。Therefore, in order to cope with the increase in the document feeding speed, the light output (light amount) of the discharge lamp may be increased so as to increase the illuminance on the document surface P. For example, if the tube diameter of the discharge lamp 1 is made thicker than about 15 mm and the tube input (electric power) is increased, the light quantity can be relatively easily increased. Since the interval is narrow at about 6 to 12 mm, it becomes difficult to arrange a discharge lamp having a tube diameter larger than the interval.
【0009】かといって、サイズを変更しないで現状の
放電灯の管入力を増加させれば、それに伴って光量も増
加させることはできるものの、管入力を増加させる割に
は光量の増加割合が少なく、十分な読取り精度が得られ
る程度の原稿面照度を得ることはできないものである。However, if the tube input of the current discharge lamp is increased without changing the size, the light quantity can be increased accordingly, but the increase rate of the light quantity is proportional to the increase of the tube input. However, the illuminance of the document surface cannot be obtained to the extent that sufficient reading accuracy is obtained.
【0010】[0010]
【発明が解決しようとする課題】従って、本出願人は、
先に図9〜図10に示す放電灯装置を提案した。この放
電灯装置は、例えば希ガス放電灯1の外周面における光
放出部(外部電極4,5の間)2aに集光機能を有する
長尺状のレンズ体6を、レンズ部7の端部に一体的に形
成した対をなす脚部8,9にてガラスバルブ2を挟持す
るように装着して構成されている。Therefore, the applicant of the present invention is
Previously, the discharge lamp device shown in FIGS. 9 to 10 was proposed. In this discharge lamp device, for example, an elongated lens body 6 having a light collecting function is provided on a light emitting portion (between the external electrodes 4 and 5) 2a on the outer peripheral surface of the rare gas discharge lamp 1, and an end portion of the lens portion 7 is provided. The glass bulb 2 is mounted so as to be sandwiched by paired leg portions 8 and 9 integrally formed with each other.
【0011】この放電灯装置によれば、希ガス放電灯1
の外周面にレンズ体6が近接ないし密接するように配置
されているために、希ガス放電灯1から放出される光が
レンズ体6によって効果的に集光される。従って、原稿
面Pにおける照度を大幅に増加させることができ、OA
機器の原稿送り速度の高速化にも十分に対応できるもの
である。According to this discharge lamp device, the rare gas discharge lamp 1 is used.
Since the lens body 6 is arranged close to or in close contact with the outer peripheral surface of the, the light emitted from the rare gas discharge lamp 1 is effectively condensed by the lens body 6. Therefore, the illuminance on the document surface P can be significantly increased, and the OA
It can sufficiently cope with the increase in the document feeding speed of the device.
【0012】しかしながら、レンズ体6は希ガス放電灯
1に対して、爪状の脚部8,9にて挟持されているだけ
であるために、装着後に振動,衝撃などが付与される
と、正規の取り付け位置からずれ易いという問題があ
る。However, since the lens body 6 is only sandwiched by the claw-shaped legs 8 and 9 with respect to the rare gas discharge lamp 1, if vibration or impact is applied after mounting, There is a problem that it is easily displaced from the regular mounting position.
【0013】かといって、希ガス放電灯1とレンズ部7
及び爪状の脚部8,9とを接着剤やテ−プなどで補助的
に固定すれば、位置ずれは完全に防止することができる
ものの、接着剤の乾燥・硬化に長い時間を要し、量産性
の観点から好ましくないものである。On the other hand, the rare gas discharge lamp 1 and the lens portion 7
And if the nail-shaped legs 8 and 9 are supplementarily fixed with an adhesive or tape, the positional displacement can be completely prevented, but it takes a long time to dry and cure the adhesive. However, this is not preferable from the viewpoint of mass productivity.
【0014】それ故に、本発明の目的は、簡単な構成に
よってレンズ体の放電灯に対する位置関係を安定に維持
できる放電灯装置を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a discharge lamp device which can stably maintain the positional relationship of the lens body with respect to the discharge lamp with a simple structure.
【0015】[0015]
【課題を解決するための手段】従って、本発明は、上述
の目的を達成するために、直管形の放電灯と、集光機能
を有する長尺状のレンズ部の少なくとも一端にカバ−部
を一体的に形成してなるレンズ体とを具備し、前記放電
灯の少なくとも一端をレンズ体のカバ−部に収納すると
共に、放電灯の外周面にレンズ体のレンズ部を密接ない
し近接して配置したものであり、本発明の第2の発明
は、前記レンズ体を、レンズ部の両端にカバ−部を一体
的に形成したものであり、第3の発明は、前記レンズ体
におけるカバ−部の内部空間を絶縁部材にて充実させた
ことを特徴とする。SUMMARY OF THE INVENTION Therefore, in order to achieve the above object, the present invention provides a straight tube type discharge lamp and a cover portion at least at one end of an elongated lens portion having a light collecting function. A lens body integrally formed with the discharge lamp, at least one end of the discharge lamp is housed in the cover portion of the lens body, and the lens portion of the lens body is closely or close to the outer peripheral surface of the discharge lamp. According to a second aspect of the present invention, the lens body is integrally formed with cover portions at both ends of the lens portion, and the third aspect is the cover of the lens body. It is characterized in that the internal space of the section is filled with an insulating member.
【0016】又、本発明の第4の発明は、内面に発光層
を有するガラスバルブの外周面に一対の帯状の外部電極
を離隔して配置し、かつガラスバルブ内に希ガスを封入
してなる希ガス放電灯と、集光機能を有する長尺状のレ
ンズ部の少なくとも一端にカバ−部を一体的に形成して
なるレンズ体とを具備し、前記希ガス放電灯の少なくと
も一端をレンズ体のカバ−部に収納すると共に、希ガス
放電灯の外周面における外部電極間にレンズ体のレンズ
部を密接ないし近接して配置したことを特徴とする。さ
らに、本発明の第5の発明は、内面に発光層を有するガ
ラスバルブの外周面に一対の帯状の外部電極を離隔して
配置し、かつガラスバルブ内に希ガスを封入してなる希
ガス放電灯と、希ガス放電灯の外部電極の端部から導出
したリ−ド線と、集光機能を有する長尺状のレンズ部の
両端にカバ−部を一体的に形成してなるレンズ体とを具
備し、前記希ガス放電灯の端部をレンズ体のカバ−部に
収納すると共に、リ−ド線をカバ−部の外周部分に形成
した導出孔から導出し、かつ希ガス放電灯の外周面にお
ける外部電極間にレンズ体のレンズ部を密接ないし近接
して配置したことを特徴とする。According to a fourth aspect of the present invention, a pair of strip-shaped external electrodes are arranged apart from each other on the outer peripheral surface of a glass bulb having a light emitting layer on the inner surface, and a rare gas is sealed in the glass bulb. A rare gas discharge lamp, and a lens body in which a cover part is integrally formed on at least one end of an elongated lens part having a condensing function, and at least one end of the rare gas discharge lamp is a lens. It is characterized in that it is housed in the cover part of the body, and the lens part of the lens body is arranged closely or close to between the external electrodes on the outer peripheral surface of the rare gas discharge lamp. Furthermore, a fifth aspect of the present invention is a rare gas in which a pair of strip-shaped external electrodes are spaced apart from each other on the outer peripheral surface of a glass bulb having a light emitting layer on the inner surface, and a rare gas is enclosed in the glass bulb. A lens body in which a discharge lamp, a lead wire led from an end portion of an external electrode of a rare gas discharge lamp, and an elongated lens portion having a light collecting function are integrally formed with cover portions at both ends. The end portion of the rare gas discharge lamp is housed in the cover portion of the lens body, and the lead wire is led out from the lead-out hole formed in the outer peripheral portion of the cover portion, and the rare gas discharge lamp is provided. The lens portion of the lens body is disposed between the external electrodes on the outer peripheral surface of the lens in close contact or in proximity.
【0017】[0017]
【発明の実施の形態】次に、本発明の1実施例について
図1〜図4を参照して説明する。尚、図7〜図10に示
す従来例と同一部分には同一の参照符号を付し、その詳
細な説明は省略する。本発明の特徴部分は、集光機能を
有する長尺状のレンズ部7の少なくとも一端にカバ−部
11を一体的に形成してなるレンズ体6Aと直管形の放
電灯1とを、放電灯1の少なくとも一端がカバ−部11
に収納されると共に、放電灯1の外周面にレンズ部7が
密接ないし近接して配置されるように組み立てたことで
ある。BEST MODE FOR CARRYING OUT THE INVENTION Next, one embodiment of the present invention will be described with reference to FIGS. The same parts as those in the conventional example shown in FIGS. 7 to 10 are designated by the same reference numerals, and detailed description thereof will be omitted. The characteristic part of the present invention is to discharge a straight tube type discharge lamp 1 and a lens body 6A formed by integrally forming a cover portion 11 on at least one end of an elongated lens portion 7 having a light collecting function. At least one end of the electric lamp 1 has a cover portion 11
That is, the lens portion 7 is assembled in such a manner that the lens portion 7 is placed in close contact with or close to the outer peripheral surface of the discharge lamp 1.
【0018】この放電灯1としては、通常の反射形,ア
パ−チャ形などの蛍光ランプを適用することができる
が、図8に示すような希ガス放電灯が好適する。この希
ガス放電灯1における外部電極4,5の端部には端子4
a,5aが一体的に形成されており、これらの端子4
a,5aにはリ−ド線10,10が接続されている。As the discharge lamp 1, an ordinary reflection type or aperture type fluorescent lamp can be applied, but a rare gas discharge lamp as shown in FIG. 8 is preferable. Terminals 4 are provided at the ends of the external electrodes 4 and 5 in the rare gas discharge lamp 1.
a and 5a are integrally formed, and these terminals 4
Lead wires 10 and 10 are connected to a and 5a.
【0019】一方、上述のレンズ体6Aは、例えばポリ
カ−ボネイト又はアクリル樹脂にて成形されており、凸
レンズなどのように集光機能を有する長尺状のレンズ部
7と、レンズ部7の両端に一体的に形成されたカバ−部
11,11とから構成されている。そして、レンズ体6
Aのカバ−部11,11は少なくとも前面側に開口する
ほぼ筒状に構成されている。例えば、カバ−部11の側
面部11aの基部の両側面にはOA機器への取り付け用
の係止溝12,12がそれぞれ形成されており、背面部
11bの例えば中央部分には後述する絶縁部材の注入孔
13が形成されており、さらに底面部(外周部分)11
cにはリ−ド線10を導出するための導出孔14が形成
されている。このカバ−部11の内部には希ガス放電灯
1の端部が収納できる程度の空間部が形成されている。On the other hand, the above-mentioned lens body 6A is formed of, for example, polycarbonate or acrylic resin, and has a long lens portion 7 having a light-condensing function such as a convex lens, and both ends of the lens portion 7. And cover portions 11 and 11 formed integrally with each other. And the lens body 6
The cover portions 11 and 11 of A are formed in a substantially cylindrical shape that opens at least on the front side. For example, locking grooves 12, 12 for attaching to an OA device are formed on both side surfaces of the base of the side surface portion 11a of the cover portion 11, respectively, and an insulating member to be described later is provided, for example, in the central portion of the rear surface portion 11b. Injection hole 13 is formed, and the bottom surface portion (outer peripheral portion) 11 is formed.
A lead-out hole 14 for leading out the lead wire 10 is formed in c. Inside the cover portion 11, there is formed a space portion that can accommodate the end portion of the rare gas discharge lamp 1.
【0020】又、レンズ体6Aにおけるカバ−部11,
11の空間部には、例えばシリコ−ン系,アクリル系接
着剤などの絶縁部材15が、カバ−部11の内面と希ガ
ス放電灯1との間に充実されるように注入される。尚、
この絶縁部材15には絶縁性のフィラ−を適宜に混入さ
せることができる。Further, the cover portion 11 of the lens body 6A,
An insulating member 15, such as a silicone-based or acrylic-based adhesive, is injected into the space 11 so as to be filled between the inner surface of the cover 11 and the rare gas discharge lamp 1. still,
An insulating filler can be appropriately mixed into the insulating member 15.
【0021】これら希ガス放電灯1,レンズ体6Aは次
のように組み立てられる。まず、カバ−部11,11の
導出孔14,14に希ガス放電灯1の端部を対向させる
と共に、それの光放出部2aをレンズ部7に対向するよ
うに位置修正する。この状態で、希ガス放電灯1をレン
ズ体6Aに向けて移動させ、それぞれの端部をカバ−部
11,11の空間部に収納する。そして、希ガス放電灯
1の光放出部2aをレンズ部7の入光側(内側)に密接
ないし近接させると共に、リ−ド線10を導出孔14か
ら外部に導出させる。尚、光放出部2aとレンズ部7と
の位置修正は、この段階で行なうこともできる。The rare gas discharge lamp 1 and the lens body 6A are assembled as follows. First, the end portions of the rare gas discharge lamp 1 are made to face the outlet holes 14, 14 of the cover portions 11, 11 and the light emitting portion 2 a of the end portion is corrected so as to face the lens portion 7. In this state, the rare gas discharge lamp 1 is moved toward the lens body 6A, and the respective end portions are housed in the space portions of the cover portions 11, 11. Then, the light emitting portion 2a of the rare gas discharge lamp 1 is brought into close contact with or close to the light incident side (inner side) of the lens portion 7, and the lead wire 10 is led out from the lead-out hole 14. The position of the light emitting portion 2a and the lens portion 7 can be corrected at this stage.
【0022】次に、カバ−部11の空間部には、それの
背面部11bの注入孔13から例えばシリコ−ン系接着
剤を主成分とする絶縁部材15が注入され、カバ−部1
1の内面と希ガス放電灯1との間が充実される。尚、光
放出部2aとレンズ部7との位置修正は、この段階で行
なうこともできる。然る後、カバ−部11,11を例え
ば80℃程度に加熱し、絶縁部材15を硬化させる。こ
れによって、希ガス放電灯1及びレンズ体6はカバ−部
11,11の内部において絶縁部材15を介して接着・
固定され、組み立てを完了する。Next, in the space of the cover portion 11, an insulating member 15 containing, for example, a silicone-based adhesive as a main component is injected from the injection hole 13 of the back surface portion 11b thereof, and the cover portion 1 is formed.
The space between the inner surface of 1 and the rare gas discharge lamp 1 is enhanced. The position of the light emitting portion 2a and the lens portion 7 can be corrected at this stage. After that, the cover portions 11 and 11 are heated to, for example, about 80 ° C. to cure the insulating member 15. As a result, the rare gas discharge lamp 1 and the lens body 6 are bonded to each other inside the cover portions 11 and 11 via the insulating member 15.
It is fixed and the assembly is completed.
【0023】この実施例によれば、レンズ体6Aは、レ
ンズ部7の両端にカバ−部11,11を一体的に成形し
て構成されているために、原稿照射装置に適用した状態
において、振動,衝撃などが作用してもレンズ部7がカ
バ−部11から位置ずれすることは全くない。According to this embodiment, since the lens body 6A is formed by integrally forming the cover portions 11 and 11 on both ends of the lens portion 7, when the lens body 6A is applied to the original irradiating apparatus, The lens portion 7 is never displaced from the cover portion 11 even if vibration, impact or the like is applied.
【0024】その上、レンズ部7とカバ−部11,11
とは一体的に成形して構成されているために、放電灯装
置の構成部品点数が少なくできる。このために、コスト
ダウンを図ることができるのみならず、組み立て性も改
善できる。In addition, the lens portion 7 and the cover portions 11, 11
And are integrally molded, the number of constituent parts of the discharge lamp device can be reduced. Therefore, not only the cost can be reduced, but also the assemblability can be improved.
【0025】しかも、レンズ体6Aと希ガス放電灯1
は、その端部において絶縁部材15によって接着・固定
されているために、原稿照射装置に適用した状態におい
て、振動,衝撃などが作用してもレンズ部7と光放出部
2aとの位置関係がずれることはなく、適正な位置関係
を安定に維持することができる。Moreover, the lens body 6A and the rare gas discharge lamp 1
Since the end portion is adhered and fixed by the insulating member 15 in the end portion, the positional relationship between the lens portion 7 and the light emitting portion 2a is maintained even when vibration or impact is applied in the state applied to the document irradiation device. There is no deviation, and the proper positional relationship can be maintained stably.
【0026】特に、カバ−部11の内部空間は絶縁部材
15にて充実されているために、高周波高電圧が印加さ
れる端子4a,5aなどを被覆して保護できる。従っ
て、安全性を高めることができる。In particular, since the inner space of the cover portion 11 is filled with the insulating member 15, the terminals 4a, 5a to which a high frequency high voltage is applied can be covered and protected. Therefore, safety can be improved.
【0027】図5〜図6は、本発明の他の実施例を示す
ものであって、レンズ体6Bにおける一方のカバ−部1
1Aはその背面部11bに開口部13Aが形成され、底
面部11cを有する筒状に構成されている。又、他方の
カバ−部11Bは図1〜図4に示す実施例におけるカバ
−部11に底面部11cを付加した状態に構成されてい
る。尚、他方のカバ−部11Bは一方のカバ−部11A
と同様に構成することもできる。5 to 6 show another embodiment of the present invention, in which one cover portion 1 of the lens body 6B is used.
1A has an opening 13A formed on the back surface 11b thereof, and has a cylindrical shape having a bottom surface 11c. The other cover portion 11B is constructed by adding a bottom surface portion 11c to the cover portion 11 in the embodiment shown in FIGS. Incidentally, the other cover portion 11B is the one cover portion 11A.
It can also be configured similarly to.
【0028】この実施例では、次のように組み立てられ
る。まず、希ガス放電灯1は、図5において矢印で示す
ように、その他方の端部を一方のカバ−部11Aの開口
部13Aから挿入し他方のカバ−部11Bに収納する。
この状態で、希ガス放電灯1の一方の端部(リ−ド線1
0側)は一方のカバ−部11Aに収納される。次に、カ
バ−部11A,11Bの空間部には、それの背面部11
bの開口部13A及び注入孔13から例えばシリコ−ン
系接着剤を主成分とする絶縁部材15が注入され、カバ
−部11A,11Bの内面と希ガス放電灯1との間が充
実される。尚、光放出部2aとレンズ部7との位置修正
は、この段階で行なわれるが、これ以前の段階で行なう
こともできる。然る後、カバ−部11A,11Bを例え
ば80℃程度に加熱し、絶縁部材15を硬化させる。こ
れによって、希ガス放電灯1及びレンズ体6Bはカバ−
部11A,11Bの内部において絶縁部材15を介して
接着・固定され、組み立てを完了する。In this embodiment, it is assembled as follows. First, as shown by an arrow in FIG. 5, the rare gas discharge lamp 1 is inserted into the other cover portion 11B by inserting the other end portion from the opening portion 13A of the one cover portion 11A.
In this state, one end of the rare gas discharge lamp 1 (lead wire 1
The 0 side) is stored in one cover portion 11A. Next, in the space part of the cover parts 11A and 11B, the back part 11
An insulating member 15 containing, for example, a silicone-based adhesive as a main component is injected from the opening 13A and the injection hole 13 of b, and the space between the inner surfaces of the cover parts 11A and 11B and the rare gas discharge lamp 1 is enhanced. . The position correction of the light emitting portion 2a and the lens portion 7 is performed at this stage, but it may be performed at a stage before this. After that, the cover portions 11A and 11B are heated to, for example, about 80 ° C. to cure the insulating member 15. As a result, the rare gas discharge lamp 1 and the lens body 6B are covered.
The parts 11A and 11B are bonded and fixed to each other via the insulating member 15 to complete the assembly.
【0029】尚、本発明は、何ら上記実施例にのみ制約
されることなく、例えばレンズ体におけるレンズ部とカ
バ−部との結合位置は原稿照射装置との関係で適宜に変
更できる。又、レンズ体と放電灯とは絶縁部材にて固定
する他、絶縁部材を用いないで接着剤,テ−プなどによ
って固定することもできる。さらに、レンズ部は放電灯
の有効光放出部の全長に亘って配置することが望ましい
が、使用態様によっては適用長さを適宜に調整すること
ができる。Incidentally, the present invention is not limited to the above-mentioned embodiment at all, and for example, the connecting position of the lens portion and the cover portion in the lens body can be appropriately changed in relation to the original irradiating device. Further, the lens body and the discharge lamp may be fixed by an insulating member, or may be fixed by an adhesive or tape without using the insulating member. Further, it is desirable that the lens portion is arranged over the entire length of the effective light emitting portion of the discharge lamp, but the application length can be appropriately adjusted depending on the usage mode.
【0030】[0030]
【発明の効果】以上のように、本発明によれば、レンズ
体は、レンズ部の両端にカバ−部を一体的に成形して構
成されているために、原稿照射装置に適用した状態にお
いて、振動,衝撃などが作用してもレンズ部がカバ−部
から位置ずれすることは全くない。As described above, according to the present invention, since the lens body is formed by integrally molding the cover portions on both ends of the lens portion, it is possible to apply it to the original irradiating apparatus. Even if vibration, impact or the like is applied, the lens portion is never displaced from the cover portion.
【0031】その上、レンズ部とカバ−部とは一体的に
成形して構成されているために、放電灯装置の構成部品
点数が少なくできる。このために、コストダウンを図る
ことができるのみならず、組み立て性も改善できる。Moreover, since the lens portion and the cover portion are integrally formed, the number of constituent parts of the discharge lamp device can be reduced. Therefore, not only the cost can be reduced, but also the assemblability can be improved.
【0032】又、レンズ体と放電灯とを、その端部にお
いて絶縁部材によって接着・固定すれば、原稿照射装置
に適用した状態において、振動,衝撃などが作用しても
レンズ部と光放出部との位置関係がずれることはなく、
適正な位置関係を安定に維持することができる。If the lens body and the discharge lamp are adhered and fixed at their ends by an insulating member, the lens section and the light emitting section will be applied even when vibration or shock is applied in the state of being applied to the document irradiation device. The positional relationship with
The proper positional relationship can be stably maintained.
【0033】特に、カバ−部の内部空間を絶縁部材にて
充実すれば、高周波高電圧が印加される端子などを被覆
して保護できる。従って、安全性を高めることができ
る。Particularly, if the inner space of the cover portion is filled with an insulating member, the terminals to which a high frequency high voltage is applied can be covered and protected. Therefore, safety can be improved.
【図1】本発明の1実施例を示す側断面図。FIG. 1 is a side sectional view showing an embodiment of the present invention.
【図2】図1の中央部分における縦断面図。FIG. 2 is a vertical cross-sectional view of the central portion of FIG.
【図3】図1のカバ−部材部分における縦断面図。FIG. 3 is a vertical sectional view of a cover member portion of FIG.
【図4】分解斜視図。FIG. 4 is an exploded perspective view.
【図5】本発明にかかる他の実施例を示す分解斜視図。FIG. 5 is an exploded perspective view showing another embodiment according to the present invention.
【図6】図5に示す実施例の側断面図。6 is a side sectional view of the embodiment shown in FIG.
【図7】従来の原稿照射装置の概略図。FIG. 7 is a schematic view of a conventional document irradiation device.
【図8】従来の原稿照射装置に使用される放電灯の断面
図。FIG. 8 is a cross-sectional view of a discharge lamp used in a conventional document irradiation device.
【図9】従来の放電灯装置の縦断面図。FIG. 9 is a vertical cross-sectional view of a conventional discharge lamp device.
【図10】図9に示すレンズ体の斜視図。FIG. 10 is a perspective view of the lens body shown in FIG.
1 放電灯(希ガス放電灯) 2 ガラスバルブ 2a 光放出部 3 発光層 4,5 外部電極 6A,6B レンズ体 7 レンズ部 10 リ−ド線 11,11A,11B カバ−部 11a 側面部 11b 背面部(外周部) 11c 底面部(外周部) 13 注入孔 13A 開口部 14 導出孔 15 絶縁部材 DESCRIPTION OF SYMBOLS 1 Discharge lamp (rare gas discharge lamp) 2 Glass bulb 2a Light emission part 3 Light emitting layer 4,5 External electrode 6A, 6B Lens body 7 Lens part 10 Lead wire 11, 11A, 11B Cover part 11a Side part 11b Rear surface Part (outer peripheral part) 11c Bottom part (outer peripheral part) 13 Injection hole 13A Opening part 14 Outlet hole 15 Insulating member
Claims (6)
尺状のレンズ部の少なくとも一端にカバ−部を一体的に
形成してなるレンズ体とを具備し、前記放電灯の少なく
とも一端をレンズ体のカバ−部に収納すると共に、放電
灯の外周面にレンズ体のレンズ部を密接ないし近接して
配置したことを特徴とする放電灯装置。1. A discharge lamp of a straight tube type, and a lens body formed by integrally forming a cover portion on at least one end of an elongated lens portion having a light collecting function. A discharge lamp device characterized in that at least one end is housed in a cover portion of a lens body, and a lens portion of the lens body is arranged in close contact or close proximity to an outer peripheral surface of the discharge lamp.
−部を一体的に形成したことを特徴とする請求項1記載
の放電灯装置。2. The discharge lamp device according to claim 1, wherein the lens body has cover portions integrally formed at both ends of the lens portion.
間を絶縁部材にて充実させたことを特徴とする請求項1
又は2記載の放電灯装置。3. The inner space of the cover portion of the lens body is filled with an insulating member.
Or the discharge lamp device according to 2.
周面に一対の帯状の外部電極を離隔して配置し、かつガ
ラスバルブ内に希ガスを封入してなる希ガス放電灯と、
集光機能を有する長尺状のレンズ部の少なくとも一端に
カバ−部を一体的に形成してなるレンズ体とを具備し、
前記希ガス放電灯の少なくとも一端をレンズ体のカバ−
部に収納すると共に、希ガス放電灯の外周面における外
部電極間にレンズ体のレンズ部を密接ないし近接して配
置したことを特徴とする放電灯装置。4. A rare gas discharge lamp in which a pair of strip-shaped external electrodes are spaced apart from each other on the outer peripheral surface of a glass bulb having a light emitting layer on the inner surface, and a rare gas is sealed in the glass bulb.
A lens body having a cover portion integrally formed on at least one end of a long lens portion having a light collecting function,
At least one end of the rare gas discharge lamp has a lens body cover.
The discharge lamp device is characterized in that the lens portion of the lens body is disposed in close contact or in close proximity between the external electrodes on the outer peripheral surface of the rare gas discharge lamp while being housed in the portion.
周面に一対の帯状の外部電極を離隔して配置し、かつガ
ラスバルブ内に希ガスを封入してなる希ガス放電灯と、
希ガス放電灯の外部電極の端部から導出したリ−ド線
と、集光機能を有する長尺状のレンズ部の両端にカバ−
部を一体的に形成してなるレンズ体とを具備し、前記希
ガス放電灯の端部をレンズ体のカバ−部に収納すると共
に、リ−ド線をカバ−部の外周部分に形成した導出孔か
ら導出し、かつ希ガス放電灯の外周面における外部電極
間にレンズ体のレンズ部を密接ないし近接して配置した
ことを特徴とする放電灯装置。5. A rare gas discharge lamp in which a pair of strip-shaped external electrodes are spaced apart from each other on the outer peripheral surface of a glass bulb having a light emitting layer on the inner surface, and a rare gas is sealed in the glass bulb.
The lead wire led from the end of the external electrode of the rare gas discharge lamp and the cover at both ends of the elongated lens part having a light collecting function.
And a lead wire is formed on an outer peripheral portion of the cover portion while the end portion of the rare gas discharge lamp is housed in the cover portion of the lens body. A discharge lamp device, characterized in that a lens portion of a lens body is arranged in close contact or in close proximity with an external electrode on an outer peripheral surface of a rare gas discharge lamp, which is led out from a lead-out hole.
て充実させたことを特徴とする請求項4又は5記載の放
電灯装置。6. The discharge lamp device according to claim 4, wherein the inner space of the cover member is filled with an insulating member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7318193A JPH09161532A (en) | 1995-12-06 | 1995-12-06 | Discharge lamp device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7318193A JPH09161532A (en) | 1995-12-06 | 1995-12-06 | Discharge lamp device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09161532A true JPH09161532A (en) | 1997-06-20 |
Family
ID=18096488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7318193A Pending JPH09161532A (en) | 1995-12-06 | 1995-12-06 | Discharge lamp device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09161532A (en) |
-
1995
- 1995-12-06 JP JP7318193A patent/JPH09161532A/en active Pending
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