JPS5922680B2 - UV irradiation device - Google Patents
UV irradiation deviceInfo
- Publication number
- JPS5922680B2 JPS5922680B2 JP52000785A JP78577A JPS5922680B2 JP S5922680 B2 JPS5922680 B2 JP S5922680B2 JP 52000785 A JP52000785 A JP 52000785A JP 78577 A JP78577 A JP 78577A JP S5922680 B2 JPS5922680 B2 JP S5922680B2
- Authority
- JP
- Japan
- Prior art keywords
- mercury lamp
- slit
- microwave
- ultraviolet rays
- microwave power
- 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
Landscapes
- Printing Methods (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Description
【発明の詳細な説明】
本発明はマイクロ波電力を用いて水銀ランプを点灯させ
、塗料、印刷インクなどを光重合反応を起して硬化させ
る装置に利用する紫外線照射装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an ultraviolet irradiation device used in a device for curing paints, printing inks, etc. by causing a photopolymerization reaction by lighting a mercury lamp using microwave power.
ここで紫外線の利用法を述べると、紫外線エネルギを利
用して光重合反応を起し印刷、塗装用インキを速やかに
乾燥させるのに利用する。Here, we will discuss how ultraviolet rays are used.Ultraviolet energy is used to cause a photopolymerization reaction and to quickly dry printing and painting inks.
従来印刷、塗装用インキを乾燥するには自然乾燥の他、
ガスオープン、電熱、赤外線などによる加熱乾燥が広く
使われているが、紫外線を用いた乾燥装置を使用するこ
とにより、（支）硬化、乾燥時間が早い。Conventional methods for drying printing and painting inks include natural drying,
Heat drying using gas open, electric heat, infrared rays, etc. is widely used, but curing and drying times are faster by using drying equipment that uses ultraviolet rays.
（ヨ 設備費が比較的安い。(Yo) Equipment costs are relatively low.
作業面積が小さい。。（３）加熱に不適当な紙、プラス
チックにも使えると共に熱容量の大きい金属にも使える
。（４）通常、溶剤を含まない塗料を使用するので、溶
剤放出などの公害を起さない。Small working area. . (3) Can be used with paper and plastics that are unsuitable for heating, as well as metals with large heat capacity. (4) Since paints that do not contain solvents are usually used, they do not cause pollution such as solvent emissions.
などの特徴がある。It has such characteristics.
このような特徴を有する紫外線を出す放電管として通常
水銀ランプが使用される。従来、水銀ランプなどの放電
管を点灯するには、放電を開始させるために高い電圧を
発生させると共に、その放電を安定させるための安定器
が必要であつた。A mercury lamp is usually used as a discharge tube that emits ultraviolet light having such characteristics. Conventionally, in order to light a discharge tube such as a mercury lamp, it has been necessary to generate a high voltage to start the discharge and also to have a ballast to stabilize the discharge.
もちろん水銀ランプは電極を必要とするが、最近無電極
の水銀ランプなどの放電管をマイクロ波電力を用いて点
灯するものが開発された。これは第１図に示すようなも
ので、マイクロ波発振装置１にて発生したマイクロ波電
力を導波管２によりマイクロ波オープン４に伝送・供給
する。マイクロ波オープン４内には細長い水銀ランプ３
が取り付けられており、供給されたマイクロ波電力によ
り放電点灯するものである。水銀ランプ３が放電を開始
すると紫外線が発生し、被処理物５に照射する。シール
ド網６はマイクロ波電力はしや断するが紫外線は透過さ
せるものである。このような装置を利用すると、水銀ラ
ンプは点灯するが、マイクロ波オープン４内の電力密度
が下がるため水銀ランプ３を効率良＜点灯出来ない。こ
のため紫外線の発生量が少ない。またマイクロ波放射口
が１ケ所であるため水銀ランプに均一にマイクロ波電力
が照射されず、発光強度が均一でなく、被処理物５ＶＣ
対して均一な処理ができないなどの欠点がある。本発明
は、以上のような事情にもとづいてなされたもので、水
銀ランプに電力密度の均一なマイクロ波電力を照射して
放電させうる紫外線照射装置を提供するものである。Of course, mercury lamps require electrodes, but recently electrodeless mercury lamps and other discharge tubes have been developed that use microwave power to light them. This is as shown in FIG. 1, in which microwave power generated in a microwave oscillator 1 is transmitted and supplied to a microwave opener 4 through a waveguide 2. Inside the microwave opener 4 is a slender mercury lamp 3.
is attached to the lamp, and the lamp is lit by discharge using the supplied microwave power. When the mercury lamp 3 starts discharging, ultraviolet rays are generated and are irradiated onto the object 5 to be treated. The shielding net 6 cuts off microwave power but allows ultraviolet rays to pass through. When such a device is used, the mercury lamp lights up, but the power density inside the microwave opener 4 decreases, so the mercury lamp 3 cannot be lit efficiently. Therefore, the amount of ultraviolet rays generated is small. In addition, since there is only one microwave emission port, the microwave power is not uniformly irradiated to the mercury lamp, and the emission intensity is not uniform.
On the other hand, there are drawbacks such as the inability to perform uniform processing. The present invention has been made based on the above circumstances, and provides an ultraviolet irradiation device that can irradiate a mercury lamp with microwave power having a uniform power density to cause the lamp to discharge.
以下本発明の実施例を図面を参照しながら説明する。Embodiments of the present invention will be described below with reference to the drawings.
第２図、第３図に示す装置は、マイクロ波発振装置１１
にて発生したマイクロ波電力が発振装置保護用アイソレ
ータ１２，！！合器１３を介してスリツトアンテナ導波
管４に伝送される。The device shown in FIGS. 2 and 3 is a microwave oscillation device 11.
The microwave power generated in the oscillator protection isolator 12,! ! The signal is transmitted to the slit antenna waveguide 4 via the combiner 13.
スリツトアンテナ導Ｔｎｌ４はその側面にマイクロ波電
力を放射するための複数のスリツト１４ａが整列して設
けられている。スリツトの形状はすべてのスリツトから
均一にマイクロ波電力が水銀ランプ１５に放射されるよ
うに形成されている。矢印ａはマイクロ波の放射をあら
れしている。スリツトアンテナ導波管１４のスリツト近
傍にはほぼスリツト部全体の長さとほぼ同一の長さの放
電管例えば水銀ランプ１５が照射オーブン１６内に装着
されている。マイクロ波電力の照射を受けた水銀ランプ
１５は瞬時に発光し紫外線を発する。マイク口波電力は
しや断し紫外線は透過させるシールド網１７を介して紫
外線は被処理物１８に照射される。照射オーブン１６の
底部１６ａは紫外線の作業者への影響を無くするための
ものである。被処理物１８は照射オープン１６を通過し
ながら連続的に処理される。照射オープン１６の形状は
被処理物１８に紫外線を効率良く照射するために、放射
面、円形面６楕円面などを用いる。The slit antenna conductor Tnl4 has a plurality of slits 14a aligned on its side surface for radiating microwave power. The slits are shaped so that microwave power is uniformly radiated from all the slits to the mercury lamp 15. Arrow a indicates microwave radiation. Near the slit of the slit antenna waveguide 14, a discharge tube such as a mercury lamp 15 having a length substantially equal to the length of the entire slit portion is installed in the irradiation oven 16. The mercury lamp 15 irradiated with microwave power instantly emits light and emits ultraviolet rays. The ultraviolet rays are irradiated onto the object to be processed 18 via a shield net 17 that transmits the ultraviolet rays through the microphone mouth wave power. The bottom portion 16a of the irradiation oven 16 is provided to eliminate the influence of ultraviolet rays on workers. The object to be processed 18 is continuously processed while passing through the irradiation opening 16. The shape of the irradiation opening 16 is a radiation surface, a circular surface 6, an elliptical surface, etc. in order to efficiently irradiate the object 18 with ultraviolet rays.
放電管である水銀ランプ１５はそれぞれの曲面のほぼ光
学的な焦点位置に配する。こうすることにより例えば放
物面を用いた場合６紫外線は第３図の矢印ｂのごとく被
処理物１８に均等に照射される。上方へ照射された紫外
線は放物面の頂点部に当ク水銀ランプ１５に舞い戻つて
きて被処理物１８には照射されない。本発明の場合この
放物面の頂点部にスリツトアンテナ導波管１４のスリツ
ト１４ａを配したことが特徴である。本発明のような紫
外線照射装置を使用すれば６放電管である水銀灯に均一
にマイクロ波電力が照射されるため発光が全体にわたつ
で均一であるため被処理物への紫外線照射１がほぼ均一
にできる。A mercury lamp 15, which is a discharge tube, is arranged at approximately the optical focal point of each curved surface. By doing this, for example, when a paraboloid is used, the object to be treated 18 is uniformly irradiated with the 6 ultraviolet rays as indicated by the arrow b in FIG. The upwardly irradiated ultraviolet rays return to the mercury lamp 15 at the apex of the paraboloid and are not irradiated onto the object 18 to be treated. The present invention is characterized in that the slit 14a of the slit antenna waveguide 14 is arranged at the apex of this paraboloid. When the ultraviolet irradiation device of the present invention is used, the mercury lamp, which is a six-discharge tube, is uniformly irradiated with microwave power, and the light emission is uniform over the entire area, so that the ultraviolet irradiation of the object to be treated is approximately 1. Can be done evenly.
更にスリツトアンテナ導波管からの水銀ランプへのマイ
クロ波電力の放射を集中して行なえるため、発光も強ま
ク紫外線Ｉが多くなる。よつて被処理物はよ勺早く処理
目的を達成することが出来る。なお本実施例では被処理
物をマイクロ波電力領域外を通過させるようにしたが、
第４図のように、水銀ランプ１５と被処理物１８の間に
あつたシールド網を取り外し、余つたマイクロ波電力で
被処理物１８を加熱しながら紫外線を照射しうるように
することもできる。また紫外線発生用放電管は、直線状
のものに限らずリング状その他の形状のものでも使用で
き、この場合は放電管に沿つて導波管のスリツトを形成
する。Furthermore, since the microwave power can be radiated from the slit antenna waveguide to the mercury lamp in a concentrated manner, the light emission is also strengthened and the amount of ultraviolet rays I is increased. Therefore, the object to be treated can achieve its processing purpose much more quickly. Note that in this example, the object to be processed was made to pass outside the microwave power range.
As shown in FIG. 4, it is also possible to remove the shielding net between the mercury lamp 15 and the object to be treated 18, so that the remaining microwave power can be used to heat the object to be treated and irradiate it with ultraviolet rays. . Further, the discharge tube for generating ultraviolet rays is not limited to a straight one, but can also be used in a ring shape or other shapes, and in this case, a waveguide slit is formed along the discharge tube.
第１図は従来例を示す横断面図、第２図は本発明の一実
施例を示す横断面略図．第３図は第２図のＡ−Ｂ断面略
図、第４図は本発明の他の実施例を示す断面略図である
。
１１；マイクロ波発振装置、１４；スリツトアンテナ導
波管６１４ａ：スリツト、１６：照射オープン、１５：
水銀ランプ、１８；被処理物。FIG. 1 is a cross-sectional view showing a conventional example, and FIG. 2 is a schematic cross-sectional view showing an embodiment of the present invention. 3 is a schematic cross-sectional view taken along the line AB in FIG. 2, and FIG. 4 is a schematic cross-sectional view showing another embodiment of the present invention. 11; microwave oscillator, 14; slit antenna waveguide 614a: slit, 16: irradiation open, 15:
Mercury lamp, 18; object to be treated.
Claims (1)
連設され側面にマイクロ波電力を放射する複数のスリッ
トを有するスリットアンテナ導波管と、前記スリットア
ンテナ導波管のスリット側に取付けられた照射オーブン
と、前記スリットアンテナ導波管のスリット近傍で前記
照射オーブン内に取り付けられた水銀ランプを有するこ
とを特徴とする紫外線照射装置。1. A microwave oscillation device, a slit antenna waveguide that is connected to the microwave oscillation device and has a plurality of slits on the side surface that radiates microwave power, and an irradiation device that is attached to the slit side of the slit antenna waveguide. An ultraviolet irradiation device comprising: an oven; and a mercury lamp installed in the irradiation oven near the slit of the slit antenna waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52000785A JPS5922680B2 (en) | 1977-01-10 | 1977-01-10 | UV irradiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52000785A JPS5922680B2 (en) | 1977-01-10 | 1977-01-10 | UV irradiation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5385979A JPS5385979A (en) | 1978-07-28 |
| JPS5922680B2 true JPS5922680B2 (en) | 1984-05-28 |
Family
ID=11483342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52000785A Expired JPS5922680B2 (en) | 1977-01-10 | 1977-01-10 | UV irradiation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5922680B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5760305U (en) * | 1980-09-27 | 1982-04-09 | ||
| JPS5760303U (en) * | 1980-09-27 | 1982-04-09 | ||
| JPS58175297A (en) * | 1982-04-07 | 1983-10-14 | 三菱電機株式会社 | Method of controlling microwave discharge light source |
| JPS58175298A (en) * | 1982-04-07 | 1983-10-14 | 三菱電機株式会社 | Method of controlling microwave discharge light source |
-
1977
- 1977-01-10 JP JP52000785A patent/JPS5922680B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5385979A (en) | 1978-07-28 |
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