JPH09231821A - Luminaire and method for maintaining illuminance - Google Patents

Luminaire and method for maintaining illuminance

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Publication number
JPH09231821A
JPH09231821A JP8349996A JP8349996A JPH09231821A JP H09231821 A JPH09231821 A JP H09231821A JP 8349996 A JP8349996 A JP 8349996A JP 8349996 A JP8349996 A JP 8349996A JP H09231821 A JPH09231821 A JP H09231821A
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Prior art keywords
layer
facial
lighting
deg
lamp
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JP8349996A
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Japanese (ja)
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Toshiya Watabe
俊也 渡部
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Toto Ltd
東陶機器株式会社
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F2003/1664Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by sterilisation
    • F24F2003/1667Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by sterilisation using UV light
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00Coatings; Surface treatments
    • F28F2245/02Coatings; Surface treatments hydrophilic

Abstract

PROBLEM TO BE SOLVED: To enhance the washing effect with water to a great extent by specifying the thickness of a light emitting tube or cover or the like to enclose the tube, forming on the external surface a facial layer containing photo- semiconductor particles, and thereby giving hydrophilic property to the facial layer. SOLUTION: Anatase type titanium sol of ammonia peptizing type and colloidal silica sol are mixed together in a solid-converted mol proportion of 88:12. and the obtained mixture is applied to the surface of a fluorescent lamp 1 and subjected to a baking process at 450 deg.C for 30min so that a facial layer 2 consisting of TiO2 and SiO2 is 3μm thick. The thickness of the tubing of this fluorescent lamp 1 should be, for example 2mm, which does not constitute hindrance to ultraviolet rays emitted from the lamp to reach the facial layer 2. The contact angle of the layer immediately after baking to the water is 15deg., but once the lighting is started, it becomes zero deg. after approx. one hr, and remains under five deg. within one week approximately after stopping of the lighting. When the invention is applied to a street lighting, it is self- cleaned with rain precipitation, and the illuminance will not drop for one month or more.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は清掃性及び自己浄化性に優れた照明器具とその照度維持方法に関する。 The present invention relates to the excellent luminaire cleanability and self-cleaning with respect to the illuminance maintenance methods.

【0002】 [0002]

【従来の技術】蛍光灯等の照明器具の表面に酸化チタン(TiO 2 )膜を形成して、自己浄化性を高める提案が、 Surface titanium oxide of the Prior Art Lighting fixtures such as a fluorescent lamp (TiO 2) film to form, is proposed to enhance the self-cleaning properties,
学会予稿集(第2回シンポジウム「光触媒の最近の展開」、1995年12月25日 於:東京大学)、特開平6−2 Conference proceedings ( "Recent Developments of light catalyst" the second Symposium, December 25, 1995 at: The University of Tokyo), JP-A-6-2
5857号公報、特開平7−51646号公報及び特開平7−111104号公報になされている。 5857 JP, have been made in JP-A-7-51646 and JP-A-7-111104 JP.

【0003】前記学会予稿集では、酸化チタン微粒子を分散した液剤及びゾルゲル用液剤を蛍光ランプ外面に塗布することで、ランプ表面に付着しているインクや油等の汚れが分解され、また同時に悪臭成分も分解されることが報告されている。 [0003] In the above conference proceedings, by applying the dispersed solution and the sol-gel solutions of titanium oxide fine particles to the fluorescent lamp external surface, ink smears or oil, etc. adhering is decomposed to the lamp surface and simultaneously malodorous it has been reported that components are also degraded. 特開平6−25857号公報には、気体状のチタンイソプロポキシドを蛍光体粒子表面に噴霧して表面に酸化チタン膜を形成することで、高湿度下でも輝度低下の少ない蛍光灯を得ることが記載されている。 JP-A-6-25857, by forming a gaseous titanium isopropoxide titanium oxide film on a surface by spraying the surfaces of phosphor particles, also under high humidity obtain small fluorescent lamps with reduced brightness There has been described. 特開平7−51646号公報には、酸化チタン膜をガラス等の表面に形成し、この酸化チタン膜に紫外線を照射することで、ヤニや油脂成分等の汚れを分解することが開示されている。 JP-A-7-51646, a titanium oxide film is formed on the surface of glass or the like, by irradiating ultraviolet light to the titanium oxide film, it is disclosed that decompose dirt such as tar or oil components . 特開平7−111104号公報には、照明カバーの内側面に酸化チタン膜を形成することで、悪臭成分や有毒成分を分解するとともに、有害な紫外線を蛍光灯から放出しないようにすることが開示されている。 JP-A-7-111104, by forming a titanium oxide film on the inner surface of the light cover, as well as decomposing the malodorous components and toxic components, disclosure is possible not to emit harmful UV from the fluorescent lamp It is.

【0004】 [0004]

【発明が解決しようとする課題】上記したいずれの先行例にあっても、照明器具の発光管若しくはカバーに直接酸化チタン膜を形成し、この酸化チタン膜に紫外線を照射することによる光触媒作用或いは光半導体作用で汚れ成分等を化学的に分解するものであり、汚れ成分の量が多量であって光触媒分解作用が追い付かないような極めて劣悪な環境下での使用には対処できない。 In any of the preceding example described above INVENTION SUMMARY is], the arc tube or directly titanium oxide film to cover the lighting equipment is formed, photocatalytic action or by irradiating ultraviolet rays to the titanium oxide film optical semiconductor and a soil components such as to chemically degraded by the action, for use in a very poor environment, such as the amount of soil components can not keep up photocatalytic decomposition action a large amount can not be handled. 更に、汚れが付着した場合の雨水や洗浄水等による洗浄を効果的に行わせるものではない。 Furthermore, not to effectively perform the washing with rain water or washing water or the like in the case where stains are adhered.

【0005】 [0005]

【課題を解決するための手段】上記課題を解決すべく本発明に係る照明器具は、発光管または発光管を覆うカバーの外表面に光半導体粒子を含有する表面層を形成し、 In order to solve the above problems SUMMARY OF THE INVENTION The lighting device according to the present invention, to form a surface layer containing an optical semiconductor particles on the outer surface of the cover that covers the arc tube or arc tube,
またこの表面層が形成される発光管または発光管を覆うカバーの厚みを、発光源からの照明光が前記光半導体粒子を励起して表面層に親水性を付与し得る厚さとした。 The thickness of the cover for covering the arc tube or arc tube the surface layer is formed, the illumination light from the light emitting source has a thickness capable of imparting hydrophilicity to the surface layer to excite the optical semiconductor particles.

【0006】ここで、前記表面層としては、例えばSi [0006] Here, as the surface layer, for example, Si
−O結合を有する樹脂(SiO 2 )中に酸化チタンが分散して存在する構造が考えられる。 Titanium oxide in a resin (SiO 2) having a -O bond is considered structure present in the dispersion.

【0007】また、上記の構造の他に、発光管または発光管を覆うカバー類の表面に、アルカリ金属(Na等) Further, in addition to the above structure, the surface of the cover such that covers the arc tube or arc tube, an alkali metal (Na, etc.)
の拡散を防止する下地層を形成し、この下地層を介して光半導体粒子からなる表面層を形成する構造でもよい。 Diffusion forming the base layer to prevent the, or a structure forming a surface layer consisting of the optical semiconductor particles through the underlying layer.
尚プラスチック等の基材上に形成する下地層としてはS Note The base layer formed on a substrate such as plastic S
i−O結合を有する樹脂が好ましく、ガラス等の基材上に形成する下地層としては二酸化ケイ素が好ましい。 Preferably resins having a i-O bonds, silicon dioxide is preferred as a base layer formed on a substrate such as glass.

【0008】もともと酸化チタン単独でも多少の親水性を有するのであるが、下地層を形成することで、発光管または発光管を覆うカバー類中に含まれる不純物が酸化チタンに拡散し表面層の親水化を阻害することを防ぐ効果がある。 [0008] Although than originally have some hydrophobic or titanium oxide alone, the formation of the underlying layer, the hydrophilic light-emitting tube or impurities contained in covers, for covering the arc tube is diffused into the titanium oxide surface layer it is effective to prevent the inhibiting of.

【0009】一方、本発明に係る照度維持方法は、発光管またはこの発光管を覆うカバーの外表面に光半導体粒子を含有する表面層が形成されている照明器具を点灯して、前記光半導体粒子の励起波長以下の波長の照明光を前記発光管またはこの発光管を覆うカバーを透過せしめて表面層に照射し、光半導体粒子を励起することで前記表面層を親水性にし、この親水性を呈するようになった表面層に雨水あるいは洗浄水をかけることで、表面層に付着している異物を除去するようにした。 On the other hand, illuminance maintenance method according to the present invention is to light the lighting fixture surface layer containing an optical semiconductor particles on the outer surface of the cover that covers the arc tube or arc tube is formed, the optical semiconductor irradiating the surface layer an illumination light having a wavelength of less than the excitation wavelength of particles allowed transmission cover for covering the arc tube or arc tube, and the surface layer hydrophilic by exciting the optical semiconductor particles, the hydrophilic by applying a rainwater or washing water to the surface layer adapted to exhibit, and to remove the foreign matter adhering to the surface layer.

【0010】また、本発明に係る別の照度維持方法は、 [0010] In addition, another of the illuminance maintenance method according to the present invention,
発光管またはこの発光管を覆うカバーの外表面に光半導体粒子を含有する表面層が形成されている照明器具を点灯して、前記光半導体粒子の励起波長以下の波長の照明光を前記発光管またはこの発光管を覆うカバーを透過せしめて表面層に照射し、光半導体粒子を励起することで前記表面層を親水性にして表面層に付着する洗浄水、露または雨水などの水分を水滴にすることなく薄い水膜とし、この薄い水膜状態の水分を乾燥せしめるようにした。 Lit the luminaire surface layer containing an optical semiconductor particles on the outer surface of the cover that covers the arc tube or arc tube is formed, the luminous bulb illumination light having a wavelength of less than the excitation wavelength of the optical semiconductor particles or by irradiating the surface layer allowed transmitting cover covering the arc tube, the washing water of the surface layer by exciting the optical semiconductor particles attached to the surface layer in the hydrophilic, moisture such as dew or rain water drops a thin water film without and so allowed to dry moisture of the thin water film state.

【0011】本願発明にあっては、化学的な作用に加え物理的な作用によって汚れを除去する。 [0011] In the present invention, to remove the dirt by physical action in addition to the chemical action. 即ち、化学的な作用では、酸化チタン等の光半導体粒子にバンドギャップ以上のエネルギーを有する光(紫外線)を照射することで、光励起により伝導帯に電子を、荷電子帯に正孔を生じせしめ、電子の持つ還元力、正孔の持つ酸化力によって汚れ成分等を分解する。 That is, in the chemical action, by irradiating light (ultraviolet light) having an energy greater than the band gap to the optical semiconductor particles such as titanium oxide, electrons in the conduction band by photoexcitation, allowed cause holes in valence band , reducing power with electron degrades soil components such as the oxidizing power possessed by the positive holes. これに加え物理的な作用では、光半導体粒子にバンドギャップ以上のエネルギーを有する光を照射することで、表面層表面の極性が増して、物理吸着水量が増加することにより、親水性が向上し、これにより汚れを分解することなく、雨水や洗浄水とともにそのまま照明器具の表面から剥離して除去する。 The physical action addition, by irradiating light having an energy greater than the band gap to the optical semiconductor particles, increasing the polarity of the surface of the surface layer, by physical adsorption amount of water increases, improved hydrophilicity , thereby without disassembling the dirt, it is removed by peeling from the surface of the luminaire with rainwater and cleaning water. この作用により、著しい量の汚れが付着し化学的な分解作用では分解できない場合でも、容易に汚れを除去でき、照明機能を維持できる。 This action, even if a significant amount of dirt can not be degraded in chemical decomposition and deposition can be easily removed dirt can be maintained lighting function.

【0012】 [0012]

【発明の実施の形態】以下に本発明の実施の形態を説明する。 Describing the embodiments of the present invention in the following DETAILED DESCRIPTION OF THE INVENTION. (実施例1)アンモニア解膠型のアナターゼ型チタンゾル(石原産業製STS−11、溶質濃度35重量%、平均結晶粒子径17nm)と、コロイダルシリカゾル(日産化学製スノーテクスO、溶質濃度20重量%、平均結晶粒子径15nm、pH3)を固形分のモル比で88: (Example 1) Ammonia peptization-type anatase sol (manufactured by Ishihara Sangyo STS-11, the solute concentration of 35 wt%, average crystal grain size 17 nm) and colloidal silica sol (manufactured by Nissan Chemical Snowtex O, solute concentration of 20 wt% , the average crystal grain size 15 nm, pH 3) at a molar ratio of solids 88:
12になるように混合した後、図1(a)に示す蛍光灯1(東芝FL20SW)の表面にディッピング法にて塗布し、450℃で30分焼成し、同図(b)に示すように蛍光灯1の表面にTiO 2とSiO 2とからなる表面層2 Were mixed so that a 12, was applied by a dipping method on the surface of the fluorescent lamp 1 shown in FIG. 1 (a) (Toshiba FL20SW), and baked 30 minutes at 450 ° C., as shown in FIG. (B) surface layer 2 made of TiO 2 and SiO 2 Metropolitan on the surface of the fluorescent lamp 1
を3μmの厚さで形成した。 It was formed to a thickness of 3 [mu] m. また、蛍光灯1の管体の厚みは2mmでこの厚さは白色蛍光灯から発せられる紫外線が表面層2に到達するのを妨げない厚さである。 Further, the tube having a thickness of the fluorescent lamp 1 is the thickness at 2mm in thickness ultraviolet emitted from the white fluorescent lamp is not prevented from reaching the surface layer 2. 上記によって得られた蛍光灯の焼成直後の表面層の水との接触角は15°であった。 Contact angle with water of the surface layer immediately after baking the resulting fluorescent lamps by the above was 15 °. また、上記蛍光灯を暗所に1週間放置した後に点灯し、点灯してからの経過時間と接触角の変化を測定した結果、1週間暗所に放置しても水との接触角は変化せず15°のままであり、更に点灯を開始すると、1時間程度で接触角は0°(超親水化)され、点灯中は常時接触角は0°であった。 Also, the fluorescent lamp was lit after standing for 1 week in the dark, lit elapsed time and measurement results of the change in contact angle from the contact angle change of the water even when left to 1 week dark remains 15 ° without, further starts lighting, contact angles of about 1 hour is 0 ° (superhydrophilic) is lit was the constant contact angle 0 °. また、点灯を停止しても1週間程度は接触角は5°未満であった。 Further, about one week to stop lighting and the contact angle was less than 5 °. この蛍光灯を街路において使用した場合、降雨によってセルフクリーニングされることにより、1ヵ月後も全く照度低下を生じなかった。 In this case the fluorescent lamp used in street, by being self-cleaned by rainfall, did not produce at all illumination intensity even after 1 month.

【0013】図2(a)は紫外線を照射する前の表面層の概念図であり、この図に示すように、Si原子にアルキル基(R)が結合しているため、紫外線を照射する前の表面層は疎水性を示す。 [0013] FIG. 2 (a) is a conceptual view of the surface layer prior to irradiation with ultraviolet rays, as shown in this figure, the alkyl group (R) are bonded to Si atoms, before irradiation with ultraviolet light surface layer of the exhibits hydrophobicity. そして、表面層に紫外線を照射すると、図2(b)に示すように、TiO 2の光半導体効果或いは光触媒効果によってアルキル基(R)が水酸基(OH)に換わり、この水酸基(OH)に水素結合によって物理吸着水が結合し、表面層の表面に薄い水膜が形成され、親水性が発揮される。 When irradiated with ultraviolet rays in the surface layer, as shown in FIG. 2 (b), TiO 2 optical semiconductor effect or an alkyl group with photocatalytic effect (R) is instead a hydroxyl group (OH), hydrogen to the hydroxyl groups (OH) physically adsorbed water is bound by the binding, a thin water film on the surface of the surface layer is formed, hydrophilicity is exhibited.

【0014】(実施例2)図3(a)に示す白熱灯3 [0014] (Example 2) incandescent lamp 3 shown in FIG. 3 (a)
(三菱LW100V19W)の表面にシリコンアルコキシドをコーティングした。 It was coated with a silicon alkoxide on the surface of the (Mitsubishi LW100V19W). コーティングの手順は、先ずテトラエトキシシラン、36%塩酸、純水、エタノールを6:2:6:86(重量比)で混合し、1時間放置して混合による発熱がおさまった後、これをディッピングにより白熱灯3の表面に塗布した。 Procedure of the coating, first tetraethoxysilane, 36% hydrochloric acid, purified water, ethanol 6: 2: 6: 86 mixture (weight ratio), after subsided heating by mixing for 1 hour, dipping this It was applied to the surface of the incandescent lamp 3 by. 次に、チタンアルコキシドをその上にコーティングした。 Next, it was coated with a titanium alkoxide on it. コーティングの手順は、先ずテトラエトキシシランとエタノールを1:9 Procedure of the coating, first of tetraethoxysilane and ethanol 1: 9
(重量比)で混合したものに、更に加水分解速度を抑制するために36%塩酸をテトラエトキシシランに対し1 In a mixture (weight ratio), with respect to tetraethoxysilane 36% hydrochloric acid in order to further suppress the hydrolysis rate 1
0重量%添加して作製した。 It was prepared by adding 0%. 次に乾燥空気中でこの溶液を上記シリコンアルコキシド層の上にディッピングした。 Then this solution in dry air and dipping on said silicon alkoxide layer. コーティング量は酸化チタン換算で45μg/cm 45μg / cm in the coating amount in terms of titanium oxide
2とした。 2 and it was. 次に、1〜10分乾燥処理することによりシリコンアルコキシド層及びチタンアルコキシド層の加水分解、脱水縮合を促進し、シリカ層及び無定形酸化チタン層を形成し、その後450℃で焼成し、図3(b)に示すように白熱灯3の表面にSiO 2層4とTiO 2層5からなる表面層2を形成した。 Next, hydrolysis of the silicon alkoxide layer and a titanium alkoxide layer by 10 minutes drying, promote dehydration condensation to form a silica layer and amorphous titanium oxide layer, and baked thereafter 450 ° C., 3 to form a surface layer 2 made of SiO 2 layer 4 and the TiO 2 layer 5 on the surface of the incandescent lamp 3 as shown in (b).

【0015】上記によって作製した白熱灯をトイレにおいて1週間点灯せずに放置したところ、水との接触角は30°となった。 [0015] was allowed to stand without lighting 1 week in toilet incandescent produced by the above, the contact angle with water became 30 °. これを点灯させたところ、6時間で接触角は0°となった。 Was lit this, the contact angle became 0 ° for 6 hours.

【0016】(実施例3)シリカゾル(日本合成ゴム社製のグラスカA)中のシリカ分重量と正味のトリメトキシメチルシラン(日本合成ゴム社製のグラスカB)重量が3:1となるように混合し、全溶質濃度20重量%とした液状物を、図4(a)に示すポリカーボネートの照明カバー6(厚み2mm)に塗布した。 [0016] (Example 3) silica sol (Japan Synthetic Rubber Co. Gurasuka A) Weight (Gurasuka B of Japan Synthetic Rubber Co., Ltd.) Silica content weight and net trimethoxymethylsilane in 3: to be 1 mixing the liquid prepared by the total solute concentration of 20 wt% was applied to the light cover 6 (thickness 2 mm) polycarbonate shown in Figure 4 (a). その後、100 After that, 100
℃で加熱固化し、膜厚5μmの樹脂層7を形成した。 Heated solidified ° C., to form a resin layer 7 having a thickness of 5 [mu] m. 次に、アナターゼ型酸化チタンゾル(日産化学社製 TA Then, anatase titanium oxide sol (manufactured by Nissan Chemical Industries, Ltd. TA
−15 溶質濃度10重量%)に上記シリカゾルを添加し、エタノールで希釈後、上記トリメトキシメチルシランを添加した溶液を上記樹脂層7の上に塗布した。 -15 was added the silica sol solute concentration 10 wt%), diluted with ethanol, and the solution was added the trimethoxymethylsilane is applied onto the resin layer 7. その後、150℃で加熱固化し、膜厚0.5μmの表面層2 Thereafter, by heating and solidified at 0.99 ° C., the surface of the film thickness 0.5μm layer 2
を形成した。 It was formed. ここで、シリカとトリメトキシメチルシランの固形分重量(樹脂重量)と酸化チタン固形分重量の和に対する酸化チタン固形分重量の比率は50%とした。 Here, silica and solid weight (resin weight) of the trimethoxymethylsilane and the ratio of the titanium oxide solid weight to the sum of titanium oxide solid weight was 50%.

【0017】上記によって作製した表面層の接触角は当初90°であったが、点灯してから1週間後の接触角は0°になった。 The contact angle of the surface layer produced by the above was initially 90 °, but the contact angle after 1 week lit becomes 0 °. この照明カバーを付設した照明器具を台所において使用したところ、飛散した油汚れがカバーに付着しても、水洗いによって容易に除去可能であった。 When using the luminaire attached the light cover in the kitchen, even scattered oil stains may adhere to the cover, it was readily removed by washing.

【0018】尚、実施例にあっては照明器具の発光管自体またはカバーの外表面に表面層を形成した例を示したが、照明ルーバー、反射板等のカバー類の表面に表面層を形成してもよい。 [0018] Incidentally, although the working example shows an example of forming a surface layer in the light emitting tube itself or an outer surface of the cover of the luminaire, the surface layer to the lighting louver, the surface of the cover such reflector such it may be.

【0019】 [0019]

【発明の効果】以上に説明した如く本発明に係る照明器具は、発光管または発光管を覆うカバーの外表面に酸化チタン等の光半導体粒子を含有するSi−O結合を有する樹脂等からなる表面層を形成し、或いは発光管または発光管を覆うカバー類に含まれるアルカリ金属の拡散を防止する下地層を介して光半導体粒子の層を形成し、更にこの表面層が形成される発光管または発光管を覆うカバーの厚みを、発光源からの照明光が前記光半導体粒子を励起して表面層に親水性を付与し得る厚さとしたので、確実に光半導体粒子を励起せしめる照明光を光半導体粒子に到達せしめることができる。 Lighting device according to the present invention as has been described above, according to the present invention is made of a resin or the like having a Si-O bond containing an optical semiconductor particles such as a light emitting tube or titanium oxide on the outer surface of the cover that covers the arc tube to form a surface layer, or a light-emitting tube or via an underlying layer of preventing diffusion of alkali metal contained in the cover such that covers the arc tube to form a layer of the optical semiconductor particles, further arc tube the surface layer is formed or the thickness of the cover for covering the arc tube, since the illumination light from the light emitting source has a thickness capable of imparting hydrophilicity to the surface layer to excite the optical semiconductor particles, the illumination light reliably allowed to excite the optical semiconductor particles it can be allowed to reach the optical semiconductor particles.

【0020】そして、光半導体粒子を含有する表面層に光半導体粒子を励起せしめる照明光が到達することで、 [0020] Then, when the illumination light allowed to excite the optical semiconductor particles to the surface layer containing the optical semiconductor particles reach,
表面層が親水性となり、この親水性を呈するようになった表面層に雨水あるいは洗浄水をかけることで、表面層に付着している異物を物理的にも除去することが可能になり、洗浄効果が大幅に向上する。 Surface layer is hydrophilic, the hydrophilic by applying a rainwater or washing water to the surface layer adapted to exhibit, also becomes possible to remove the foreign matter adhering to the surface layer to the physical, washed effect can be greatly improved.

【0021】また、表面層を親水性とすることで、表面層に付着する洗浄水、露または雨水などの水分が薄い水膜となるので、短時間のうちに乾燥せしめることができ、照明器具としての機能が向上する。 Further, by making the surface layer and the hydrophilic, wash water adhering to the surface layer, the moisture such as dew or rain becomes thin water film, it can be allowed to dry in a short time, the luminaire function as can be improved.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】(a)は実施例1に係る照明器具の全体図、 1 (a) is an overall view of a luminaire according to Example 1,
(b)はその拡大断面図 (B) is an enlarged sectional view thereof

【図2】(a)は疎水性表面の概念図、(b)は親水性表面の概念図 2 (a) is a conceptual diagram of a hydrophobic surface, conceptual view of (b) is hydrophilic surface

【図3】(a)は実施例2に係る照明器具の全体図、 3 (a) is an overall view of a luminaire according to Example 2,
(b)はその拡大断面図 (B) is an enlarged sectional view thereof

【図4】(a)は実施例3に係る照明器具の全体図、 4 (a) is an overall view of a lighting fixture according to the third embodiment,
(b)はその拡大断面図 (B) is an enlarged sectional view thereof

【符号の説明】 DESCRIPTION OF SYMBOLS

1…蛍光灯、2…表面層、3…白熱灯、4…SiO 2層、 1 ... fluorescent lamp, 2 ... surface layer, 3 ... incandescent lamps, 4 ... SiO 2 layer,
5…TiO 2層、6…カバー、7…樹脂層。 5 ... TiO 2 layer, 6 ... cover, 7 ... a resin layer.

Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 発光管または発光管を覆うカバー類の外表面に光半導体粒子を含有する表面層が形成され、またこの表面層が形成される発光管または発光管を覆うカバー類の厚みは、発光源からの照明光が前記光半導体粒子を励起して表面層に親水性を付与し得る厚さとされていることを特徴とする照明器具。 1. A surface layer containing an optical semiconductor particles are formed on the outer surface of the cover such that covers the arc tube or arc tube, also the thickness of the covers, for covering the arc tube or arc tube the surface layer is formed luminaire, characterized in that the illumination light from the light emitting source is a thickness capable of imparting hydrophilicity to the surface layer to excite the optical semiconductor particles.
  2. 【請求項2】 請求項1に記載の照明器具において、前記表面層はSi−O結合を有する樹脂中に酸化チタンが分散して存在することを特徴とする照明器具。 2. A luminaire A lighting instrument according to claim 1, wherein the surface layer, characterized in that the titanium oxide in a resin having Si-O bond is present dispersed.
  3. 【請求項3】 請求項1に記載の照明器具において、前記表面層は発光管または発光管を覆うカバー類に含まれるアルカリ金属の拡散を防止する下地層を介して形成されていることを特徴とする照明器具。 3. A luminaire as claimed in claim 1, wherein the surface layer is characterized by being formed through the base layer preventing diffusion of alkali metal contained in the cover such that covers the arc tube or arc tube lighting fixtures to.
  4. 【請求項4】 請求項3に記載の照明器具において、前記下地層はSi−O結合を有する樹脂または二酸化ケイ素からなり、また前記表面層は酸化チタンを含む層からなることを特徴とする照明器具。 A lighting instrument according to claim 3, lighting the underlying layer is made of a resin or silicon dioxide having a Si-O bond and said surface layer is characterized by comprising a layer containing titanium oxide instrument.
  5. 【請求項5】 発光管またはこの発光管を覆うカバー類の外表面に光半導体粒子を含有する表面層が形成されている照明器具を点灯して、前記光半導体粒子の励起波長以下の波長の照明光を前記発光管またはこの発光管を覆うカバー類を透過せしめて表面層に照射し、光半導体粒子を励起することで前記表面層を親水性にし、この親水性を呈するようになった表面層に雨水あるいは洗浄水をかけることで、表面層に付着している異物を除去することを特徴とする照度維持方法。 5. lit the luminaire luminous tube or surface layer containing an optical semiconductor particles on the outer surface of covers, covering the arc tube is formed, the wavelength of the following excitation wavelength of said optical semiconductor particles irradiating the surface layer illumination light allowed transmit covers, for covering the arc tube or arc tube, the surface layer by exciting the optical semiconductor particles made hydrophilic, it began to exhibit the hydrophilic surface by applying a rainwater or washing water to the layer, illuminance maintenance method characterized by removing foreign matter adhering to the surface layer.
  6. 【請求項6】 発光管またはこの発光管を覆うカバー類の外表面に光半導体粒子を含有する表面層が形成されている照明器具を点灯して、前記光半導体粒子の励起波長以下の波長の照明光を前記発光管またはこの発光管を覆うカバー類を透過せしめて表面層に照射し、光半導体粒子を励起することで前記表面層を親水性にして表面層に付着する洗浄水、露または雨水などの水分を薄い水膜とし、この薄い水膜状態の水分を乾燥せしめることを特徴とする照度維持方法。 6. lit the luminaire luminous tube or surface layer containing an optical semiconductor particles on the outer surface of covers, covering the arc tube is formed, the wavelength of the following excitation wavelength of said optical semiconductor particles irradiating the surface layer illumination light allowed transmit covers, for covering the arc tube or arc tube, the washing water of the surface layer by exciting the optical semiconductor particles attached to the surface layer in the hydrophilic, dew or water such as rain water and thin water film, illuminance maintenance method characterized by allowed to dry moisture of the thin water film state.
JP8349996A 1995-12-22 1996-04-05 Luminaire and method for maintaining illuminance Granted JPH09231821A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP35464995 1995-12-22
JP7-354649 1995-12-22
JP8349996A JPH09231821A (en) 1995-12-22 1996-04-05 Luminaire and method for maintaining illuminance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8349996A JPH09231821A (en) 1995-12-22 1996-04-05 Luminaire and method for maintaining illuminance

Publications (1)

Publication Number Publication Date
JPH09231821A true true JPH09231821A (en) 1997-09-05

Family

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JP8349996A Granted JPH09231821A (en) 1995-12-22 1996-04-05 Luminaire and method for maintaining illuminance
JP13408196A Expired - Lifetime JP3385850B2 (en) 1995-12-22 1996-04-19 Composites having a hydrophilic
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JP13408196A Expired - Lifetime JP3385850B2 (en) 1995-12-22 1996-04-19 Composites having a hydrophilic
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JP28280696A Pending JPH09228057A (en) 1995-12-22 1996-09-18 Wheel and its cleaning method
JP28453496A Expired - Lifetime JP3173391B2 (en) 1995-12-22 1996-09-19 Hydrophilic films, and methods of using and manufacturing method thereof
JP28453296A Pending JPH09227805A (en) 1995-12-22 1996-09-19 Photocatalytic hydrophilic coating composition
JP28453396A Pending JPH09227161A (en) 1995-12-22 1996-09-19 Pane, film for applying thereto and antifogging and cleaning thereof
JP28579796A Expired - Lifetime JP3697795B2 (en) 1995-12-22 1996-09-20 Display, and a method for cleaning
JP28895596A Expired - Lifetime JP3774955B2 (en) 1995-12-22 1996-09-25 Self-cleaning of the railing, and railing method of cleaning
JP28895496A Expired - Fee Related JP3588205B2 (en) 1995-12-22 1996-09-25 Self-cleaning properties guard fence, and cleaning of guard fence
JP28895696A Expired - Fee Related JP3588206B2 (en) 1995-12-22 1996-09-25 Self-cleaning properties for roads veneer, and cleaning methods for road veneer
JP29100596A Pending JPH09230031A (en) 1995-12-22 1996-09-26 Inter-vehicle distance detecting device and automobile having it
JP29100796A Pending JPH09225054A (en) 1995-12-22 1996-09-26 Gas mask and storing device for gas mask
JP29100696A Pending JPH09229767A (en) 1995-12-22 1996-09-26 Pyroelectric infrared detector
JP29724896A Pending JPH09227169A (en) 1995-12-22 1996-10-18 Transfer sheet, and transferring of photocatalytic and hydrophilic thin film
JP29823496A Pending JPH09226531A (en) 1995-12-22 1996-10-22 Rainy weather visibility securable vehicular mirror, automobile and two wheeler having it
JP29823596A Pending JPH09230119A (en) 1995-12-22 1996-10-22 Road mirror for assuring visual field in rainy weather
JP29823696A Pending JPH09227162A (en) 1995-12-22 1996-10-22 Vehicle pane for securing rainy weather view, and automobile mounted therewith
JP29823796A Pending JPH09229546A (en) 1995-12-22 1996-10-22 Door for refrigerated showcase having see-through ensuring property
JP30700096A Pending JPH09224800A (en) 1995-12-22 1996-11-01 Glassware and water-washing method
JP30699796A Pending JPH09226060A (en) 1995-12-22 1996-11-01 Lid for heating container having fog resistance
JP32351696A Pending JPH09241038A (en) 1995-12-22 1996-11-19 Photocatalytic hydrophilic member and its production
JP34047296A Expired - Fee Related JP3348613B2 (en) 1995-12-22 1996-12-05 Photocatalytic hydrophilic co - coating composition
JP34047096A Pending JPH09225387A (en) 1995-12-22 1996-12-05 Hydrophilic member and method to make surface of member hydrophilic
JP34047196A Expired - Lifetime JP3303696B2 (en) 1995-12-22 1996-12-05 Photocatalytic hydrophilic co - coating composition
JP34458596A Expired - Lifetime JP3141802B2 (en) 1995-12-22 1996-12-09 The hydrophilic member and a hydrophilic maintenance method
JP23956899A Expired - Lifetime JP3613085B2 (en) 1995-12-22 1999-08-26 Photocatalytic hydrophilic member
JP23956799A Expired - Lifetime JP3613084B2 (en) 1995-12-22 1999-08-26 Member exhibiting hydrophilicity according to photoexcitation of semiconductor
JP34300999A Expired - Fee Related JP3844182B2 (en) 1995-12-22 1999-12-02 Hydrophilic films, and methods of using and manufacturing method thereof
JP2000180301A Expired - Lifetime JP3414365B2 (en) 1995-12-22 2000-06-15 Outer wall for building materials
JP2000181286A Expired - Lifetime JP3414367B2 (en) 1995-12-22 2000-06-16 Outer wall for building materials
JP2000181284A Pending JP2001048679A (en) 1995-12-22 2000-06-16 Photocatalytic hydrophilic tile and its production
JP2000181287A Expired - Fee Related JP3465664B2 (en) 1995-12-22 2000-06-16 Outer wall for building materials
JP2000227055A Withdrawn JP2001089752A (en) 1995-12-22 2000-07-27 Member capable of obtaining hydrophilic nature in accordance with photoexcitation of optical semiconductor and manufacturing method thereof
JP2000227056A Pending JP2001129916A (en) 1995-12-22 2000-07-27 Photocatalytic hydrophilic member
JP2000247609A Pending JP2001122679A (en) 1995-12-22 2000-08-17 Antifouling tile
JP2001140242A Pending JP2002030258A (en) 1995-12-22 2001-05-10 Coated material and method for coating
JP2002020533A Expired - Fee Related JP3882625B2 (en) 1995-12-22 2002-01-29 Sound insulation walls and sound insulating wall cleaning method
JP2002244772A Pending JP2003113345A (en) 1995-12-22 2002-08-26 Antistatic coating composition

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JPH09224490A (en) 1997-09-02 application
JP3774955B2 (en) 2006-05-17 grant
JPH09229767A (en) 1997-09-05 application
JPH09225396A (en) 1997-09-02 application
JPH09225389A (en) 1997-09-02 application
JPH09227156A (en) 1997-09-02 application
JP2003113345A (en) 2003-04-18 application
JPH09227169A (en) 1997-09-02 application
JP3613084B2 (en) 2005-01-26 grant
JP2001129916A (en) 2001-05-15 application
JPH09227831A (en) 1997-09-02 application
JP3588205B2 (en) 2004-11-10 grant
JP2000127289A (en) 2000-05-09 application
JPH09228765A (en) 1997-09-02 application
JPH09224793A (en) 1997-09-02 application
JP3414365B2 (en) 2003-06-09 grant
JP2001122679A (en) 2001-05-08 application
JPH09230796A (en) 1997-09-05 application
JPH09230493A (en) 1997-09-05 application
JPH09230118A (en) 1997-09-05 application
JP3141802B2 (en) 2001-03-07 grant
JPH09226060A (en) 1997-09-02 application
JP2001089752A (en) 2001-04-03 application
JPH09227162A (en) 1997-09-02 application
JPH09228326A (en) 1997-09-02 application
JP3613085B2 (en) 2005-01-26 grant
JPH09229585A (en) 1997-09-05 application
JPH09227832A (en) 1997-09-02 application
JPH09226041A (en) 1997-09-02 application
JP3743075B2 (en) 2006-02-08 grant
JP2001048679A (en) 2001-02-20 application
JP3612896B2 (en) 2005-01-19 grant
JP2000136370A (en) 2000-05-16 application
JPH09230119A (en) 1997-09-05 application
JPH09228332A (en) 1997-09-02 application
JPH09225054A (en) 1997-09-02 application
JPH09226040A (en) 1997-09-02 application
JP3588206B2 (en) 2004-11-10 grant
JPH09231849A (en) 1997-09-05 application
JP3189682B2 (en) 2001-07-16 grant
JP3760509B2 (en) 2006-03-29 grant
JPH09232096A (en) 1997-09-05 application
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JP3697795B2 (en) 2005-09-21 grant
JP3277983B2 (en) 2002-04-22 grant
JPH09225388A (en) 1997-09-02 application
JP3303696B2 (en) 2002-07-22 grant
JPH09230106A (en) 1997-09-05 application
JPH09228022A (en) 1997-09-02 application
JP3173391B2 (en) 2001-06-04 grant
JP3588202B2 (en) 2004-11-10 grant
JP3075195B2 (en) 2000-08-07 grant
JPH09228331A (en) 1997-09-02 application
JPH09228134A (en) 1997-09-02 application
JPH09228545A (en) 1997-09-02 application
JPH09227805A (en) 1997-09-02 application
JP2002030258A (en) 2002-01-31 application
JPH09230107A (en) 1997-09-05 application
JP3003581B2 (en) 2000-01-31 grant
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JP3339304B2 (en) 2002-10-28 grant
JP3414367B2 (en) 2003-06-09 grant
JPH09231807A (en) 1997-09-05 application
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JPH09224800A (en) 1997-09-02 application
JPH09224957A (en) 1997-09-02 application
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JP3348613B2 (en) 2002-11-20 grant
JP3740736B2 (en) 2006-02-01 grant
JPH09241038A (en) 1997-09-16 application
JPH09228057A (en) 1997-09-02 application
JPH09226042A (en) 1997-09-02 application
JPH09227159A (en) 1997-09-02 application
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JP3063968B2 (en) 2000-07-12 grant
JPH09227161A (en) 1997-09-02 application
JP2001049829A (en) 2001-02-20 application
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JP2001049828A (en) 2001-02-20 application
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