JP2003168308A - Lighting system - Google Patents
Lighting systemInfo
- Publication number
- JP2003168308A JP2003168308A JP2001367295A JP2001367295A JP2003168308A JP 2003168308 A JP2003168308 A JP 2003168308A JP 2001367295 A JP2001367295 A JP 2001367295A JP 2001367295 A JP2001367295 A JP 2001367295A JP 2003168308 A JP2003168308 A JP 2003168308A
- Authority
- JP
- Japan
- Prior art keywords
- electrodeless discharge
- discharge lamp
- lighting
- lamp
- light emitting
- 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
- Circuit Arrangements For Discharge Lamps (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光触媒膜を有する
照明装置に関する。TECHNICAL FIELD The present invention relates to a lighting device having a photocatalytic film.
【０００２】[0002]
【従来の技術】従来、例えばトンネル用照明器具や道路
灯などの汚れが付着しやすい屋外で使用される照明器具
では、器具本体およびガラスなどの透光性部材でランプ
を収納する外囲器を構成し、透光性部材の外面に光触媒
膜を形成し、この光触媒膜の光触媒作用で透光性部材に
付着する汚れを分解する構成が知られている。2. Description of the Related Art Conventionally, for lighting equipment used outdoors such as tunnel lighting equipment and road lights where dirt is liable to adhere, an enclosure for housing the lamp in a main body of the equipment and a transparent member such as glass is used. A configuration is known in which a photocatalytic film is formed on the outer surface of a translucent member, and the photocatalytic action of the photocatalytic film decomposes dirt adhering to the translucent member.
【０００３】このような照明器具に用いられるランプ
は、紫外線を放出して光触媒膜を活性化させるために、
例えば高圧ナトリウムランプや水銀ランプなどの高輝度
放電ランプであるＨＩＤランプが多く使用されている。
このＨＩＤランプは、ガラス製の外管内に、発光面が棒
状で比較的小さい内管である発光管を収納した構成にな
っている。The lamp used in such a lighting fixture emits ultraviolet rays to activate the photocatalytic film,
For example, HID lamps, which are high-intensity discharge lamps such as high-pressure sodium lamps and mercury lamps, are often used.
This HID lamp has a configuration in which an arc tube, which is a relatively small inner tube having a rod-shaped light emitting surface, is housed in an outer tube made of glass.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、透光性
部材の外面全体に光触媒膜が形成されているのに対し、
この光触媒膜のランプの発光面に対して最も近くに対向
する位置ではランプから照射される紫外線量が多いが、
ランプの発光面から離れた位置ではランプからの紫外線
量が著しく低下する傾向がある。However, while the photocatalytic film is formed on the entire outer surface of the translucent member,
At the position closest to the light emitting surface of the lamp of this photocatalytic film, the amount of ultraviolet rays emitted from the lamp is large,
At a position away from the light emitting surface of the lamp, the amount of ultraviolet rays from the lamp tends to be remarkably reduced.
【０００５】すなわち、ランプの発光面に対して最も近
くに対向する光触媒膜の位置では、ランプから照射され
る紫外線量が多く、光触媒膜の活性が高く、汚れの分解
能力が高いが、ランプの発光面から離れた光触媒膜の位
置では、ランプからの紫外線量が著しく少なくなり、光
触媒膜の活性が弱く、汚れの分解能力が低下する傾向が
ある。That is, at the position of the photocatalyst film closest to the light emitting surface of the lamp, the amount of ultraviolet rays emitted from the lamp is large, the activity of the photocatalyst film is high, and the ability to decompose dirt is high. At the position of the photocatalyst film away from the light emitting surface, the amount of ultraviolet rays from the lamp is significantly reduced, the activity of the photocatalyst film is weak, and the ability to decompose dirt tends to decrease.
【０００６】そのため、従来の発光面が棒状で比較的小
さいナトリウムランプや水銀ランプなどのＨＩＤランプ
を用いた照明装置では、光触媒膜によって汚れを十分に
分解できる範囲がランプの発光面に対して最も近くに対
向する狭い範囲に限られ、ランプの発光面から離れた光
触媒膜の位置では汚れが堆積しやすく、透光性部材の光
透過率が低下し、照射効率が低下する問題がある。Therefore, in a conventional lighting device using an HID lamp such as a sodium lamp or a mercury lamp, which has a rod-shaped light emitting surface and is relatively small, the range where the photocatalytic film can sufficiently decompose the dirt is the most with respect to the light emitting surface of the lamp. There is a problem that dirt is likely to be accumulated at a position of the photocatalyst film far from the light emitting surface of the lamp, which is confined to a narrow area facing the vicinity, and the light transmittance of the light transmissive member is lowered, and the irradiation efficiency is lowered.
【０００７】また、トンネル用照明器具や道路灯などで
は、ランプ交換の際に車両の通行を止めたり、高所で作
業をしなければならないため、ランプ交換の頻度を少な
くしたい要望がある。[0007] Further, in the case of tunnel lighting equipment, road lights, etc., there is a demand to reduce the frequency of lamp replacement, because it is necessary to stop the traffic of the vehicle or to work at a high place when replacing the lamp.
【０００８】本発明は、このような点に鑑みなされたも
ので、光触媒膜によって汚れを十分に分解できる範囲を
拡大し、照射効率の低下を防止でき、しかも、ランプ交
換の頻度を少なくできる照明装置を提供することを目的
とする。The present invention has been made in view of the above points, and the range in which stains can be sufficiently decomposed by the photocatalytic film is expanded, the reduction of irradiation efficiency can be prevented, and the frequency of lamp replacement can be reduced. The purpose is to provide a device.
【０００９】[0009]
【課題を解決するための手段】請求項１記載の照明装置
は、環状の発光面を有する無電極放電灯と；無電極放電
灯を点灯させる点灯回路と；無電極放電灯および点灯回
路を収納する器具本体と；器具本体に設けられ、器具本
体に収納された無電極放電灯と対向された透光性部材
と；透光性部材の表面に設けられた光触媒膜と；を具備
しているものである。An illumination device according to claim 1, wherein an electrodeless discharge lamp having an annular light emitting surface; a lighting circuit for lighting the electrodeless discharge lamp; and an electrodeless discharge lamp and a lighting circuit are housed. And a light-transmitting member provided in the device body and facing the electrodeless discharge lamp housed in the device body; and a photocatalytic film provided on the surface of the light-transmitting member. It is a thing.
【００１０】そして、この構成では、環状の発光面を有
する無電極放電灯を用い、この無電極放電灯の広い環状
の発光面が光触媒膜を設けた透光性部材に対向するの
で、広い範囲の光触媒膜の活性を高め、この光触媒膜に
よって汚れを十分に分解できる範囲を拡大し、照射効率
の低下を防止する。しかも、寿命が長い無電極放電灯を
用いて、無電極放電灯の交換頻度を少なくする。In this structure, an electrodeless discharge lamp having a ring-shaped light emitting surface is used, and the wide ring-shaped light emitting surface of the electrodeless discharge lamp faces the light-transmissive member provided with the photocatalyst film. The activity of the photocatalyst film is increased, the range in which stains can be sufficiently decomposed by the photocatalyst film is expanded, and reduction in irradiation efficiency is prevented. Moreover, the frequency of replacement of the electrodeless discharge lamp is reduced by using the electrodeless discharge lamp having a long life.
【００１１】請求項２記載の照明装置は、環状の発光面
を有する複数の無電極放電灯と；複数の無電極放電灯を
収納する器具本体と；器具本体に設けられ、器具本体に
収納された各無電極放電灯と対向された透光性部材と；
透光性部材の表面に設けられた光触媒膜と；複数の無電
極放電灯を個別に点灯させる複数の点灯回路と；複数の
無電極放電灯のうち点灯させる無電極放電灯と消灯させ
る無電極放電灯とを周期的に切り換える制御手段と；を
具備しているものである。An illumination device according to a second aspect of the present invention includes: a plurality of electrodeless discharge lamps having an annular light emitting surface; an instrument body for accommodating the plurality of electrodeless discharge lamps; provided in the instrument body and accommodated in the instrument body. A translucent member facing each electrodeless discharge lamp;
A photocatalyst film provided on the surface of the translucent member; a plurality of lighting circuits that individually light a plurality of electrodeless discharge lamps; an electrodeless discharge lamp that is turned on and an electrodeless that is turned off And a control means for periodically switching between the discharge lamp and the discharge lamp.
【００１２】そして、この構成では、環状の発光面を有
する複数の無電極放電灯を用い、これら各無電極放電灯
の広い環状の発光面が光触媒膜を設けた透光性部材に対
向するので、広い範囲の光触媒膜の活性を高め、この光
触媒膜によって汚れを十分に分解できる範囲を拡大し、
照射効率の低下を防止する。しかも、複数の無電極放電
灯のうち点灯させる無電極放電灯と消灯させる無電極放
電灯とを周期的に切り換えるので、寿命の長い無電極放
電灯を用いたうえでさらに各無電極放電灯を長期間にわ
たって使用可能とし、無電極放電灯の交換頻度を少なく
する。In this structure, a plurality of electrodeless discharge lamps having an annular light emitting surface are used, and the wide annular light emitting surface of each of the electrodeless discharge lamps faces the translucent member provided with the photocatalytic film. , Increase the activity of a wide range of photocatalyst film, and expand the range where stains can be sufficiently decomposed by this photocatalyst film,
Prevents reduction of irradiation efficiency. Moreover, among the plurality of electrodeless discharge lamps, the electrodeless discharge lamp to be turned on and the electrodeless discharge lamp to be turned off are periodically switched, so that each electrodeless discharge lamp can be further used after using the electrodeless discharge lamp with a long life. It can be used for a long period of time and the frequency of electrodeless discharge lamp replacement is reduced.
【００１３】請求項３記載の照明装置は、請求項２記載
の照明装置において、各点灯回路の温度を検知する検知
手段を備え、制御手段は、無電極放電灯を点灯させてい
る点灯回路の温度を監視し、この温度が所定の上限温度
に達したら点灯中の無電極放電灯を消灯させるとともに
別の消灯中の無電極放電灯を点灯させるものである。According to a third aspect of the present invention, there is provided an illumination device according to the second aspect, further comprising detection means for detecting the temperature of each lighting circuit, and the control means includes a lighting circuit for lighting the electrodeless discharge lamp. The temperature is monitored, and when the temperature reaches a predetermined upper limit temperature, the lit electrodeless discharge lamp is turned off and another lit electrodeless discharge lamp is lit.
【００１４】そして、この構成では、無電極放電灯を点
灯させている点灯回路の温度を監視し、この温度が所定
の上限温度に達したら点灯中の無電極放電灯を消灯させ
るとともに別の消灯中の無電極放電灯を点灯させるの
で、照明を維持したまま点灯回路の過熱を防止する。Further, in this configuration, the temperature of the lighting circuit for lighting the electrodeless discharge lamp is monitored, and when the temperature reaches a predetermined upper limit temperature, the lighting electrodeless discharge lamp is turned off and another is turned off. Since the electrodeless discharge lamp inside is turned on, overheating of the lighting circuit is prevented while maintaining illumination.
【００１５】[0015]
【発明の実施の形態】以下、本発明の一実施の形態を図
面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
【００１６】図１ないし図４に第１の実施の形態を示
し、図１は照明装置の正面図であり、図２は照明装置の
底面図であり、図３は照明装置においてランプ種類によ
る紫外線分布図の相違を示し、(a)は無電極放電灯の点
灯時の紫外線分布図、(b)は比較例として高圧ナトリウ
ムランプの点灯時の紫外線分布図である。1 to 4 show a first embodiment, FIG. 1 is a front view of an illuminating device, FIG. 2 is a bottom view of the illuminating device, and FIG. 3 is an ultraviolet ray according to a lamp type in the illuminating device. Differences in distribution charts are shown, (a) is an ultraviolet distribution chart when the electrodeless discharge lamp is lit, and (b) is an ultraviolet distribution chart when the high-pressure sodium lamp is lit as a comparative example.
【００１７】図１および図２において、11は照明装置
で、この照明装置11は、屋外用の密閉型の照明器具であ
り、トンネルの壁面に設置されるトンネル用照明装置を
構成している。In FIGS. 1 and 2, reference numeral 11 denotes a lighting device, and this lighting device 11 is an outdoor closed type lighting fixture and constitutes a tunnel lighting device installed on the wall surface of the tunnel.
【００１８】照明装置11は、例えばステンレス製で前面
が開口したケース12およびこのケース12の前面を開閉可
能に覆う例えばステンレス製のカバー13によって構成さ
れる左右の両端方向に長い長方形箱状の器具本体14を備
えている。ケース12の後面には、壁面に設置する設置金
具15が取り付けられている。カバー13は、上部に設けら
れた複数のヒンジ16によってケース12に回動可能に軸支
されているとともに、下部に設けられたラッチ体17によ
ってケース12に着脱可能に結合され、このラッチ体17に
よる結合状態でケース12内が液密に密閉された状態に保
持される。The illuminating device 11 is, for example, a case 12 made of stainless steel and having a front opening, and a cover 13 made of, for example, a stainless steel which covers the front surface of the case 12 so as to be openable and closable, and is a rectangular box-shaped instrument long in both left and right directions. It has a main body 14. On the rear surface of the case 12, an installation fitting 15 to be installed on the wall surface is attached. The cover 13 is rotatably supported on the case 12 by a plurality of hinges 16 provided on the upper portion thereof, and is detachably coupled to the case 12 by a latch body 17 provided on the lower portion. The case 12 is held in a liquid-tightly sealed state in the joined state by.
【００１９】カバー13には、左右の両端方向に長い長方
形の窓孔20が形成され、この窓孔20がガラス製で長方形
板状の前面ガラスである透光性部材21によって液密に密
閉した状態に覆われている。この透光性部材21の表面で
あって少なくとも外面には、光触媒作用を有する光触媒
膜22が形成されている。この光触媒膜22は、例えば、酸
化チタン（ＴｉＯ2）を主成分とし、透光性部材21の外
面に酸化チタンの微粒子の懸濁液を塗布し、乾燥後、加
熱、焼成して形成されている。The cover 13 is formed with a rectangular window hole 20 which is long in both left and right directions, and the window hole 20 is liquid-tightly sealed by a light-transmissive member 21 which is made of glass and is a rectangular plate-shaped front glass. The state is covered. A photocatalytic film 22 having a photocatalytic action is formed on at least the outer surface of the translucent member 21. The photocatalyst film 22 is formed, for example, by using titanium oxide (TiO 2 ) as a main component, applying a suspension of titanium oxide fine particles to the outer surface of the translucent member 21, drying, and then heating and firing. There is.
【００２０】器具本体14のケース12内には、環状に設け
られた無電極放電灯25が、その環状の発光面26を前面側
の透光性部材21に略平行に対向させて収納され、電磁コ
イルを兼ねた対の取付金具27によってケース12側に着脱
可能に取り付けられている。この無電極放電灯25は、例
えば、オスラム製のＥＮＤＵＲＡ（商品名）などの無電
極放電ランプが用いられ、略長方形環状で環状の発光面
26を形成するガラス製のバルブ28を有し、このバルブ28
内には電極が設けられず放電媒体が封入されるとともに
バルブ28の内壁面に蛍光体層が形成されている。そし
て、バルブ28の外部に設けられる電磁コイルを兼ねた対
の取付金具27に高周波電流を供給することにより、バル
ブ28内の放電媒体が放電し、この放電で放出される紫外
線で蛍光体層の蛍光体物質が励起され、紫外線が可視光
に変換されて発光面26から外部に照射される。A ring-shaped electrodeless discharge lamp 25 is housed in the case 12 of the instrument body 14 with its ring-shaped light emitting surface 26 facing the front-side translucent member 21 substantially in parallel. It is detachably attached to the case 12 side by a pair of attachment fittings 27 that also serve as electromagnetic coils. As the electrodeless discharge lamp 25, for example, an electrodeless discharge lamp such as ENDURA (trade name) manufactured by OSRAM is used, and a substantially rectangular ring-shaped light emitting surface.
It has a glass bulb 28 forming 26
No electrodes are provided inside, a discharge medium is enclosed, and a phosphor layer is formed on the inner wall surface of the bulb 28. Then, by supplying a high-frequency current to a pair of fittings 27 also serving as an electromagnetic coil provided outside the bulb 28, the discharge medium in the bulb 28 is discharged, and the ultraviolet rays emitted by this discharge cause the phosphor layer to form The phosphor substance is excited, ultraviolet rays are converted into visible light, and the light is emitted from the light emitting surface 26 to the outside.
【００２１】器具本体14のケース12内には、無電極放電
灯25に光学的に対向して無電極放電灯25から器具本体14
内に照射される光を透光性部材21へ向けて反射させる反
射体31が取り付けられている。In the case 12 of the appliance body 14, the electrodeless discharge lamp 25 is optically opposed to the electrodeless discharge lamp 25, and
A reflector 31 is attached which reflects the light emitted inside toward the translucent member 21.
【００２２】器具本体14のケース12内には、無電極放電
灯25の電磁コイルに高周波電流を供給して無電極放電灯
25を点灯させる点灯回路34が配設されている。A high-frequency current is supplied to the electromagnetic coil of the electrodeless discharge lamp 25 in the case 12 of the main body 14 of the appliance to discharge the electrodeless discharge lamp.
A lighting circuit 34 for lighting 25 is provided.
【００２３】そして、この照明装置11では、無電極放電
灯25の点灯により、無電極放電灯25から放出される光
が、透光性部材21へ直接向かうか、反射体31で反射して
透光性部材21へ向かい、この透光性部材21を透過して外
部へ照射される。無電極放電灯25から放出される光には
紫外線が含まれ、この紫外線によって光触媒膜22が活性
化され、この光触媒膜22の光触媒作用で透光性部材21の
外面に付着する汚れが分解される。In the lighting device 11, when the electrodeless discharge lamp 25 is turned on, the light emitted from the electrodeless discharge lamp 25 goes directly to the translucent member 21 or is reflected by the reflector 31 and transmitted. The light is transmitted to the light-transmitting member 21, passes through the light-transmitting member 21, and is emitted to the outside. The light emitted from the electrodeless discharge lamp 25 contains ultraviolet rays, and the ultraviolet rays activate the photocatalyst film 22, and the photocatalytic action of the photocatalyst film 22 decomposes dirt adhering to the outer surface of the translucent member 21. It
【００２４】無電極放電灯25からの紫外線の放出を確認
するために、紫外線の強度および分布を測定し、その測
定結果である紫外線分布図を図３(a)に示す。図３(b)に
は比較例として高圧ナトリウムランプについて紫外線の
強度および分布を測定した測定結果の紫外線分布図を示
す。In order to confirm the emission of ultraviolet rays from the electrodeless discharge lamp 25, the intensity and distribution of ultraviolet rays were measured, and the ultraviolet ray distribution chart as the measurement result is shown in FIG. 3 (a). As a comparative example, FIG. 3 (b) shows an ultraviolet distribution chart of the measurement results of the ultraviolet light intensity and distribution measured for a high-pressure sodium lamp.
【００２５】無電極で環状の無電極放電灯25は、例え
ば、入力電圧が１５０Ｗ、バルブ28の管径が５４ｍｍ、
環状の発光面26の見掛け上の面積が３５０×１３９ｍｍ
程度であり、高圧ナトリウムランプに比べて５倍程度大
きい面積がある。The electrodeless and annular electrodeless discharge lamp 25 has, for example, an input voltage of 150 W, a tube diameter of the bulb 28 of 54 mm,
The apparent area of the ring-shaped light emitting surface 26 is 350 x 139 mm.
The area is about 5 times larger than that of the high-pressure sodium lamp.
【００２６】紫外線測定器は、波長３５０ｎｍに感度の
ピークを有するものを使用した。測定場所は、無電極放
電灯25と反射体31、高圧ナトリウムランプと反射体のみ
の状態で正面から見たとき、それら無電極放電灯25およ
び高圧ナトリウムランプの中心部を中心として約４６ｍ
ｍピッチで均等割付し、これにより長手方向に７〜９
点、短手方向に５点の領域について測定した。As the ultraviolet ray measuring instrument, one having a sensitivity peak at a wavelength of 350 nm was used. When measuring from the front with the electrodeless discharge lamp 25 and the reflector 31 and the high-pressure sodium lamp and the reflector alone, the measuring place is about 46 m centering on the center of the electrodeless discharge lamp 25 and the high-pressure sodium lamp.
Evenly distributed at m pitches, which results in 7-9 in the longitudinal direction.
The measurement was carried out on a region of 5 points in the lateral and lateral directions.
【００２７】図３(a)(b)中、Ａ領域内の紫外線量は０．
３〜０．４ｍＷ／ｃｍ2、Ｂ領域内の紫外線量は０．２
〜０．３ｍＷ／ｃｍ2、Ｃ領域内の紫外線量は０．１〜
０．２ｍＷ／ｃｍ2、Ｄ領域内の紫外線量は０．０〜
０．１ｍＷ／ｃｍ2である。In FIGS. 3 (a) and 3 (b), the amount of ultraviolet rays in the area A is 0.
3 to 0.4 mW / cm 2 , the amount of ultraviolet rays in the B region is 0.2
~ 0.3 mW / cm 2 , the amount of ultraviolet rays in the C region is 0.1
0.2 mW / cm 2 , the amount of ultraviolet rays in the D region is 0.0 to
It is 0.1 mW / cm 2 .
【００２８】その結果、高圧ナトリウムランプの紫外線
強度は、高圧ナトリウムランプの中心部つまり外管内に
収納される発光管に対向する位置においてＡ領域の０．
３〜０．４ｍＷ／ｃｍ2であるが、そのＡ領域の分布範
囲は狭く、発光管から離れるのにしたがって著しく低下
している。これは、高圧ナトリウムランプが外管内に棒
状で比較的小さい発光管を収納した構成であることがそ
の理由と考えられる。As a result, the ultraviolet intensity of the high-pressure sodium lamp is 0. A in the area A at the center of the high-pressure sodium lamp, that is, at a position facing the arc tube housed in the outer tube.
Although it is 3 to 0.4 mW / cm 2 , the distribution range of the A region is narrow and it is remarkably reduced as it is separated from the arc tube. This is probably because the high-pressure sodium lamp has a configuration in which a rod-shaped relatively small arc tube is housed in the outer tube.
【００２９】一方、無電極放電灯25の紫外線強度は、高
圧ナトリウムランプと同等のＡ領域の０．３〜０．４ｍ
Ｗ／ｃｍ2を得られるばかりでなく、そのＡ領域の分布
が非常に広いという結果がでた。これは、無電極放電灯
25の環状の発光面26が広いためであると考えられる。On the other hand, the ultraviolet intensity of the electrodeless discharge lamp 25 is 0.3 to 0.4 m in the area A equivalent to that of the high pressure sodium lamp.
Not only was W / cm 2 obtained, but the distribution of the A region was very wide. This is an electrodeless discharge lamp
It is considered that this is because the annular light emitting surface 26 of 25 is wide.
【００３０】なお、無電極放電灯25の広い発光面26から
紫外線が放出されるが、その紫外線は透光性部材21の光
触媒膜22によって吸収されるので、外部への紫外線の放
出量は低減される。Although ultraviolet rays are emitted from the wide light emitting surface 26 of the electrodeless discharge lamp 25, the ultraviolet rays are absorbed by the photocatalytic film 22 of the translucent member 21, so the amount of ultraviolet rays emitted to the outside is reduced. To be done.
【００３１】このように、環状の発光面26を有する無電
極放電灯25を用い、この無電極放電灯25の広い環状の発
光面26が光触媒膜22を設けた透光性部材21に対向するの
で、広い範囲の光触媒膜22の活性を高めることができ、
この光触媒膜22の光触媒作用によって透光性部材21の汚
れを十分に分解できる範囲を拡大でき、照射効率の低下
を防止できる。そのため、照明装置11による十分な明る
さの照明を維持でき、照明装置11の清掃頻度を少なくで
きる。しかも、無電極放電灯25は、６００００時間の寿
命を有し、高圧ナトリウムランプなどの電極を有するラ
ンプに比べて寿命が約５倍程度長く、無電極放電灯25の
交換頻度を少なくできる。これにより、照明装置11をト
ンネル用照明器具や道路灯などとして使用すれば、清掃
頻度およびランプ交換頻度を少なくできるので、車両の
通行を止めたり、高所で作業しなければならない機会を
少なくできる。As described above, the electrodeless discharge lamp 25 having the annular light emitting surface 26 is used, and the wide annular light emitting surface 26 of the electrodeless discharge lamp 25 faces the translucent member 21 provided with the photocatalyst film 22. Therefore, the activity of the photocatalytic film 22 in a wide range can be increased,
Due to the photocatalytic action of the photocatalytic film 22, the range in which the stains on the translucent member 21 can be sufficiently decomposed can be expanded, and a decrease in irradiation efficiency can be prevented. Therefore, the illumination device 11 can maintain illumination with sufficient brightness, and the frequency of cleaning the illumination device 11 can be reduced. Moreover, the electrodeless discharge lamp 25 has a life of 60,000 hours, which is about 5 times longer than that of a lamp having electrodes such as a high-pressure sodium lamp, and the frequency of replacement of the electrodeless discharge lamp 25 can be reduced. As a result, if the lighting device 11 is used as a lighting device for a tunnel, a road light, or the like, the frequency of cleaning and the frequency of lamp replacement can be reduced, so that it is possible to reduce the chances of stopping the passage of vehicles or working in high places. .
【００３２】次に、図４に第２の実施の形態を示し、図
４は照明装置の正面図である。Next, FIG. 4 shows a second embodiment, and FIG. 4 is a front view of the illuminating device.
【００３３】この実施の形態では、器具本体14の長手方
向の寸法を長く形成し、この器具本体14内に、長手方向
に沿って２本の無電極放電灯25a，25bを着脱可能に収納
し、各無電極放電灯25a，25bに対応して反射体31a，31b
を配置し、各無電極放電灯25a，25bを個別に点灯させる
２つの点灯回路34a，34bを配置し、これら点灯回路34
a，34bに対する電源の供給を切り換えて２本の無電極放
電灯25a，25bの点灯と消灯とを制御する制御手段41を配
置する。各点灯回路34a，34bには、各点灯回路34a，34b
の温度を検知するための検知手段42a，42bを設ける。In this embodiment, the length of the instrument body 14 in the longitudinal direction is made long, and two electrodeless discharge lamps 25a, 25b are detachably housed in the instrument body 14 along the longitudinal direction. , Reflectors 31a, 31b corresponding to the electrodeless discharge lamps 25a, 25b
And two lighting circuits 34a, 34b for individually lighting the electrodeless discharge lamps 25a, 25b are arranged.
A control means 41 is arranged to switch the supply of power to a and 34b to control lighting and extinction of the two electrodeless discharge lamps 25a and 25b. Each lighting circuit 34a, 34b includes a respective lighting circuit 34a, 34b.
Detection means 42a, 42b for detecting the temperature of the are provided.
【００３４】制御手段41は、タイマ機能を有し、例えば
２４時間毎に、２本の無電極放電灯25a，25bのうち一方
を点灯させるとともに他方を消灯させる制御を周期的に
切り換える機能を有している。さらに、制御手段41は、
無電極放電灯25a，25bの一方を点灯させている点灯回路
34a，34bの一方の温度を検知手段42a，42bで監視し、こ
の温度が所定の上限温度に達したら点灯中の無電極放電
灯25a，25bの一方を消灯させるとともに別の消灯中の無
電極放電灯25a，25bの他方を点灯させる機能を有してい
る。所定の上限温度は、点灯回路34a，34b自体に定めら
れた上限温度が例えば７０℃程度である場合、その上限
温度が超えないために２〜３℃程度下げて設定すること
が好ましい。The control means 41 has a timer function and, for example, has a function of periodically switching the control for turning on one of the two electrodeless discharge lamps 25a and 25b and turning off the other one every 24 hours. is doing. Further, the control means 41 is
Lighting circuit that lights one of the electrodeless discharge lamps 25a and 25b
The temperature of one of the electrodes 34a, 34b is monitored by the detection means 42a, 42b, and when this temperature reaches a predetermined upper limit temperature, one of the electrodeless discharge lamps 25a, 25b that is lit is extinguished and another electrodeless electrodeless lamp that is extinguished. It has a function of lighting the other of the discharge lamps 25a and 25b. When the upper limit temperature set for the lighting circuits 34a and 34b itself is, for example, about 70 ° C., the predetermined upper limit temperature is preferably set lower by about 2 to 3 ° C. so that the upper limit temperature does not exceed.
【００３５】そして、通常、制御手段41の制御により、
無電極放電灯25a，25bの一方を点灯させ、他方を消灯さ
せ、また、例えば２４時間毎の切換周期の時間に達した
ら、無電極放電灯25a，25bの一方を点灯状態から消灯さ
せ、他方を消灯状態から点灯させる。このように２本の
無電極放電灯25a，25bを周期的に交互に点灯させること
により、寿命の長い無電極放電灯25a，25bを用いたうえ
でさらに各無電極放電灯25a，25bを長期間にわたって使
用でき、無電極放電灯25a，25bの交換頻度を少なくでき
る。例えば、各無電極放電灯25a，25bの寿命が６０００
０時間であれば、最大１２００００時間の長寿命化が可
能であり、日数に換算すると１４年間の長寿命化ができ
る。Then, normally, by the control of the control means 41,
One of the electrodeless discharge lamps 25a and 25b is turned on and the other is turned off, and, for example, when the time of the switching cycle of every 24 hours is reached, one of the electrodeless discharge lamps 25a and 25b is turned off from the lighting state and the other is turned off. Is turned on from off. In this way, the two electrodeless discharge lamps 25a and 25b are alternately and periodically lit so that the electrodeless discharge lamps 25a and 25b having a long life can be used and the electrodeless discharge lamps 25a and 25b can be further extended. It can be used over a period of time, and the frequency of exchanging the electrodeless discharge lamps 25a and 25b can be reduced. For example, the life of each electrodeless discharge lamp 25a, 25b is 6000
If it is 0 hours, the life can be extended to a maximum of 120,000 hours, and in terms of days, it can be extended to 14 years.
【００３６】もちろん、環状の発光面26を有する複数の
無電極放電灯25a，25bを用い、これら各無電極放電灯25
a，25bの広い環状の発光面26が光触媒膜22を設けた透光
性部材21に対向するので、広い範囲の光触媒膜22の活性
を高めることができ、この光触媒膜22の光触媒作用によ
って透光性部材21の汚れを十分に分解できる範囲を拡大
でき、照射効率の低下を防止できる。そのため、照明装
置11による十分な明るさの照明を維持でき、照明装置11
の清掃頻度を少なくできる。しかも、２本の無電極放電
灯25a，25bを周期的に交互に点灯させることにより、各
無電極放電灯25a，25bに対応した透光性部材21の部分に
汚れが堆積するのを防止できる。Of course, a plurality of electrodeless discharge lamps 25a and 25b having a ring-shaped light emitting surface 26 are used.
Since the wide annular light emitting surface 26 of a and 25b faces the translucent member 21 provided with the photocatalyst film 22, the activity of the photocatalyst film 22 in a wide range can be enhanced, and the photocatalytic action of the photocatalyst film 22 allows the photocatalytic film 22 to transmit light. It is possible to expand the range in which stains on the light-sensitive member 21 can be sufficiently decomposed, and prevent a decrease in irradiation efficiency. Therefore, the illumination device 11 can maintain the illumination with sufficient brightness, and the illumination device 11
The cleaning frequency can be reduced. Moreover, by periodically lighting the two electrodeless discharge lamps 25a and 25b alternately, it is possible to prevent dirt from accumulating on the portions of the translucent member 21 corresponding to the electrodeless discharge lamps 25a and 25b. .
【００３７】また、無電極放電灯25a，25bの一方を点灯
させている点灯回路34a，34bの一方の温度を監視し、こ
の温度が所定の上限温度に達したら点灯中の無電極放電
灯25a，25bの一方を消灯させるとともに別の消灯中の無
電極放電灯25a，25bの他方を点灯させるので、照明を維
持したまま点灯回路34a，34bの過熱を防止できる。Further, the temperature of one of the lighting circuits 34a, 34b for lighting one of the electrodeless discharge lamps 25a, 25b is monitored, and when the temperature reaches a predetermined upper limit temperature, the electrodeless discharge lamp 25a being lit up. , 25b is turned off and the other electrodeless discharge lamps 25a, 25b that are being turned off are turned on, so that it is possible to prevent overheating of the lighting circuits 34a, 34b while maintaining illumination.
【００３８】なお、この第２の実施の形態において、無
電極放電灯は、３本以上を用い、これらを周期的に点灯
させてもよく、これにより無電極放電灯をより長期間に
わたって使用でき、無電極放電灯の交換頻度をより少な
くできる。In the second embodiment, three or more electrodeless discharge lamps may be used and these may be lit periodically, so that the electrodeless discharge lamp can be used for a longer period of time. The frequency of exchanging the electrodeless discharge lamp can be further reduced.
【００３９】なお、上述した各実施の形態において、無
電極放電灯は、長方形環状であったが、これに限らず、
円形や他の形状でも環状の発光面を有する形状であれば
よく、同様の作用効果が得られる。In each of the above-mentioned embodiments, the electrodeless discharge lamp has a rectangular ring shape, but the invention is not limited to this.
A circular or other shape may be used as long as it has a ring-shaped light emitting surface, and the same effect can be obtained.
【００４０】また、照明装置は、トンネル以外に、道路
灯やその他の照明装置にも適用でき、同様の作用効果が
得られる。Besides the tunnel, the lighting device can be applied to road lights and other lighting devices, and the same effects can be obtained.
【００４１】[0041]
【発明の効果】請求項１記載の照明装置によれば、環状
の発光面を有する無電極放電灯を用い、この無電極放電
灯の広い環状の発光面が光触媒膜を設けた透光性部材に
対向するので、広い範囲の光触媒膜の活性を高め、この
光触媒膜によって汚れを十分に分解できる範囲を拡大
し、照射効率の低下を防止でき、しかも、無電極放電灯
は寿命が長く、無電極放電灯の交換頻度を少なくでき
る。According to the lighting device of the first aspect, an electrodeless discharge lamp having an annular light emitting surface is used, and the wide annular light emitting surface of the electrodeless discharge lamp is provided with a photocatalytic film. Since it opposes the photocatalyst film, the activity of the photocatalyst film in a wide range can be enhanced, the range in which stains can be sufficiently decomposed by the photocatalyst film can be expanded, and the reduction of irradiation efficiency can be prevented. The frequency of exchanging the electrode discharge lamp can be reduced.
【００４２】請求項２記載の照明装置によれば、環状の
発光面を有する複数の無電極放電灯を用い、これら各無
電極放電灯の広い環状の発光面が光触媒膜を設けた透光
性部材に対向するので、広い範囲の光触媒膜の活性を高
め、この光触媒膜によって汚れを十分に分解できる範囲
を拡大し、照射効率の低下を防止でき、しかも、複数の
無電極放電灯のうち点灯させる無電極放電灯と消灯させ
る無電極放電灯とを周期的に切り換えるので、寿命の長
い無電極放電灯を用いたうえでさらに各無電極放電灯を
長期間にわたって使用でき、無電極放電灯の交換頻度を
少なくできる。According to the illumination device of the second aspect, a plurality of electrodeless discharge lamps having an annular light emitting surface are used, and the wide annular light emitting surface of each electrodeless discharge lamp is provided with a photocatalytic film. Since it faces the member, it enhances the activity of the photocatalyst film in a wide range, expands the range where stains can be sufficiently decomposed by this photocatalyst film, prevents the reduction of irradiation efficiency, and lights up among multiple electrodeless discharge lamps. Since the electrodeless discharge lamp to be turned on and the electrodeless discharge lamp to be turned off are periodically switched, each electrodeless discharge lamp can be used for a long period of time even after using an electrodeless discharge lamp with a long life. The frequency of replacement can be reduced.
【００４３】請求項３記載の照明装置によれば、請求項
２記載の照明装置の効果に加えて、無電極放電灯を点灯
させている点灯回路の温度を監視し、この温度が所定の
上限温度に達したら点灯中の無電極放電灯を消灯させる
とともに別の消灯中の無電極放電灯を点灯させるので、
照明を維持したまま点灯回路の過熱を防止できる。According to the lighting device of the third aspect, in addition to the effect of the lighting device of the second aspect, the temperature of the lighting circuit for lighting the electrodeless discharge lamp is monitored, and this temperature has a predetermined upper limit. When the temperature is reached, the electrodeless discharge lamp that is lit is turned off and another electrodeless discharge lamp that is turned off is turned on.
It is possible to prevent overheating of the lighting circuit while maintaining the illumination.
【図１】本発明の第１の実施の形態を示す照明装置の正
面図である。FIG. 1 is a front view of an illumination device showing a first embodiment of the present invention.
【図２】同上照明装置の底面図である。FIG. 2 is a bottom view of the above illumination device.
【図３】同上照明装置においてランプ種類による紫外線
分布図の相違を示し、(a)は無電極放電灯の点灯時の紫
外線分布図、(b)は比較例として高圧ナトリウムランプ
の点灯時の紫外線分布図である。[Fig. 3] Fig. 3 shows the difference in the ultraviolet distribution map depending on the lamp type in the same lighting device. Fig. 3 (a) is an ultraviolet distribution map when the electrodeless discharge lamp is lit, and (b) is a comparative example of ultraviolet light when the high pressure sodium lamp is lit. It is a distribution map.
【図４】本発明の第２の実施の形態を示す照明装置の正
面図である。FIG. 4 is a front view of an illumination device showing a second embodiment of the present invention.
11 照明装置 14 器具本体 21 透光性部材 22 光触媒膜 25，25a，25b 無電極放電灯 26 発光面 34，34a，34b 点灯回路 41 制御手段 42a，42b 検知手段 11 Lighting device 14 Instrument body 21 Translucent member 22 Photocatalytic film 25,25a, 25b electrodeless discharge lamp 26 Light emitting surface 34, 34a, 34b lighting circuit 41 Control means 42a, 42b Detection means
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２１Ｗ 131:103 Ｆ２１Ｓ 1/00 Ｍ Ｆ２１Ｙ 101:00 Ｂ 1/10 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI theme code (reference) F21W 131: 103 F21S 1/00 M F21Y 101: 00 B 1/10 A
Claims (3)
無電極放電灯を点灯させる点灯回路と；無電極放電灯お
よび点灯回路を収納する器具本体と；器具本体に設けら
れ、器具本体に収納された無電極放電灯と対向された透
光性部材と；透光性部材の表面に設けられた光触媒膜
と；を具備していることを特徴とする照明装置。1. An electrodeless discharge lamp having an annular light emitting surface;
A lighting circuit for lighting the electrodeless discharge lamp; a fixture body for housing the electrodeless discharge lamp and the lighting circuit; and a translucent member provided in the fixture body and facing the electrodeless discharge lamp housed in the fixture body. A photocatalyst film provided on the surface of a translucent member;
灯と；複数の無電極放電灯を収納する器具本体と；器具
本体に設けられ、器具本体に収納された各無電極放電灯
と対向された透光性部材と；透光性部材の表面に設けら
れた光触媒膜と；複数の無電極放電灯を個別に点灯させ
る複数の点灯回路と；複数の無電極放電灯のうち点灯さ
せる無電極放電灯と消灯させる無電極放電灯とを周期的
に切り換える制御手段と；を具備していることを特徴と
する照明装置。2. A plurality of electrodeless discharge lamps having a ring-shaped light emitting surface; an instrument body for housing a plurality of electrodeless discharge lamps; and electrodeless discharge lamps provided in the instrument body and housed in the instrument body. A translucent member facing each other; a photocatalytic film provided on the surface of the translucent member; a plurality of lighting circuits for individually lighting a plurality of electrodeless discharge lamps; a lighting of a plurality of electrodeless discharge lamps A lighting device, comprising: a control unit that periodically switches between an electrodeless discharge lamp and an electrodeless discharge lamp that is turned off.
備え、 制御手段は、無電極放電灯を点灯させている点灯回路の
温度を監視し、この温度が所定の上限温度に達したら点
灯中の無電極放電灯を消灯させるとともに別の消灯中の
無電極放電灯を点灯させることを特徴とする請求項２記
載の照明装置。3. A detection means for detecting the temperature of each lighting circuit, wherein the control means monitors the temperature of the lighting circuit lighting the electrodeless discharge lamp, and lights when the temperature reaches a predetermined upper limit temperature. The lighting device according to claim 2, wherein the electrodeless discharge lamp in the inside is turned off and another electrodeless discharge lamp in the turned off state is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001367295A JP2003168308A (en) | 2001-11-30 | 2001-11-30 | Lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001367295A JP2003168308A (en) | 2001-11-30 | 2001-11-30 | Lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003168308A true JP2003168308A (en) | 2003-06-13 |
Family
ID=19177067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001367295A Pending JP2003168308A (en) | 2001-11-30 | 2001-11-30 | Lighting system |
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| Country | Link |
|---|---|
| JP (1) | JP2003168308A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007265899A (en) * | 2006-03-29 | 2007-10-11 | Matsushita Electric Ind Co Ltd | Electrodeless discharge lamp lighting device and electrodeless discharge lamp luminaire |
| JP2008059936A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Works Ltd | Electrodeless discharge lamp device, and lighting fixture |
| JP2008059937A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Works Ltd | Electrodeless discharge lamp device, and lighting fixture |
| JP2016536082A (en) * | 2013-09-27 | 2016-11-24 | 何志明 | Ultraviolet sterilizer and disposition method thereof |
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| JPS597599U (en) * | 1982-07-07 | 1984-01-18 | 株式会社日立製作所 | fluorescent lighting device |
| JPS6247990A (en) * | 1985-08-27 | 1987-03-02 | 松下電工株式会社 | Dimmer controller |
| JPS63124479A (en) * | 1986-11-13 | 1988-05-27 | Iwasaki Electric Co Ltd | Light source for display |
| JPH0794152A (en) * | 1993-09-27 | 1995-04-07 | Ikeda Electric Co Ltd | Electrodeless discharge lamp |
| JPH10106311A (en) * | 1996-09-24 | 1998-04-24 | Toto Ltd | Pollution-proof luminaire for tunnel |
| JPH10199311A (en) * | 1997-01-10 | 1998-07-31 | Toto Ltd | Lighting system for tunnel |
| JPH10511806A (en) * | 1995-09-15 | 1998-11-10 | パテント−トロイハント−ゲゼルシャフト フュール エレクトリッシェ グリューラムペン ミット ベシュレンクテル ハフツング | High power electrodeless low pressure light source |
| JPH11283410A (en) * | 1998-03-30 | 1999-10-15 | Toshiba Lighting & Technology Corp | Luminaire for tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597599U (en) * | 1982-07-07 | 1984-01-18 | 株式会社日立製作所 | fluorescent lighting device |
| JPS6247990A (en) * | 1985-08-27 | 1987-03-02 | 松下電工株式会社 | Dimmer controller |
| JPS63124479A (en) * | 1986-11-13 | 1988-05-27 | Iwasaki Electric Co Ltd | Light source for display |
| JPH0794152A (en) * | 1993-09-27 | 1995-04-07 | Ikeda Electric Co Ltd | Electrodeless discharge lamp |
| JPH10511806A (en) * | 1995-09-15 | 1998-11-10 | パテント−トロイハント−ゲゼルシャフト フュール エレクトリッシェ グリューラムペン ミット ベシュレンクテル ハフツング | High power electrodeless low pressure light source |
| JPH10106311A (en) * | 1996-09-24 | 1998-04-24 | Toto Ltd | Pollution-proof luminaire for tunnel |
| JPH10199311A (en) * | 1997-01-10 | 1998-07-31 | Toto Ltd | Lighting system for tunnel |
| JPH11283410A (en) * | 1998-03-30 | 1999-10-15 | Toshiba Lighting & Technology Corp | Luminaire for tunnel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007265899A (en) * | 2006-03-29 | 2007-10-11 | Matsushita Electric Ind Co Ltd | Electrodeless discharge lamp lighting device and electrodeless discharge lamp luminaire |
| JP2008059936A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Works Ltd | Electrodeless discharge lamp device, and lighting fixture |
| JP2008059937A (en) * | 2006-08-31 | 2008-03-13 | Matsushita Electric Works Ltd | Electrodeless discharge lamp device, and lighting fixture |
| JP4655009B2 (en) * | 2006-08-31 | 2011-03-23 | パナソニック電工株式会社 | Electrodeless discharge lamp device and lighting fixture |
| JP2016536082A (en) * | 2013-09-27 | 2016-11-24 | 何志明 | Ultraviolet sterilizer and disposition method thereof |
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