JP3304396B2 - Reflector - Google Patents
ReflectorInfo
- Publication number
- JP3304396B2 JP3304396B2 JP13289492A JP13289492A JP3304396B2 JP 3304396 B2 JP3304396 B2 JP 3304396B2 JP 13289492 A JP13289492 A JP 13289492A JP 13289492 A JP13289492 A JP 13289492A JP 3304396 B2 JP3304396 B2 JP 3304396B2
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- reflecting mirror
- film
- weather resistance
- composite
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、照明器具用反射鏡と
して利用できる反射効率の高い反射鏡に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector having high reflection efficiency which can be used as a reflector for lighting equipment.
【０００２】[0002]
【従来の技術】従来の反射効率の高い反射鏡（以下、適
宜「高効率反射鏡」と言う）は、下地塗装を施した基板
の表面に光輝金属材料（アルミニウム，銀など）を蒸着
することにより形成した光輝金属膜（アルミニウム膜，
銀膜など光輝金属膜）の上に有機塗装皮膜あるいは無機
系皮膜（ＳｉＯ2 膜、Ａｌ2 Ｏ3 膜、ＭｇＦ2 膜など）
を保護膜として設けた構成である。勿論、光輝金属膜の
表面が反射面となる光輝金属面であり、保護膜は光透過
性のよいものである。なお、基板表面の下地塗装は施さ
ない場合もある。2. Description of the Related Art A conventional reflecting mirror having high reflection efficiency (hereinafter referred to as "high efficiency reflection mirror" as appropriate) is to deposit a bright metal material (aluminum, silver, etc.) on the surface of a substrate coated with an undercoat. Metal film (aluminum film,
Organic paint film or inorganic film (SiO 2 film, Al 2 O 3 film, MgF 2 film, etc.) on a bright metal film such as a silver film)
Is provided as a protective film. Of course, the surface of the bright metal film is a bright metal surface serving as a reflection surface, and the protective film has good light transmittance. In some cases, the substrate surface is not coated with a base.
【０００３】ただ、この反射鏡は、一般屋内用としての
使用は可能であるが、雨や雪に晒される屋外や、Ｃ
ｌ2 ，Ｈ2 Ｓ，ＮＨ3 などの腐食性ガスを微量だけども
含む環境（プール、温泉、トイレ、台所など）、多湿環
境（風呂場など）および塩水のかかる環境（沿岸地帯）
での使用には適さない。これは、反射面を保護する保護
膜はピンホールをなくすことが難しくて、保護膜のピン
ホールで防食性等の耐環境性が低下しているからであ
る。従来のこの種の反射鏡は厳しい環境の使用には向い
ていないのである。[0003] Although this reflector can be used for general indoor use, it can be used outdoors or exposed to rain or snow.
Environments containing trace amounts of corrosive gases such as l 2 , H 2 S, and NH 3 (pools, hot springs, toilets, kitchens, etc.), humid environments (bathrooms, etc.) and environments subject to salt water (coastal zones)
Not suitable for use in This is because it is difficult for the protective film that protects the reflective surface to eliminate pinholes, and the pinholes of the protective film deteriorate environmental resistance such as corrosion resistance. Conventional mirrors of this type are not suitable for use in harsh environments.
【０００４】保護膜を厚くすればピンホールの発生を抑
えられるのであるが、保護膜を厚くすると、鏡全体でみ
た反射率の低下や保護膜の耐久性低下、さらには製造コ
ストの上昇などという別の問題が出てくる。[0004] A thicker protective film can suppress the occurrence of pinholes. However, a thicker protective film lowers the reflectance of the entire mirror, lowers the durability of the protective film, and increases the manufacturing cost. Another problem comes up.
【０００５】[0005]
【発明が解決しようとする課題】この発明は、上記事情
に鑑み、実質的に保護膜の厚み増加を伴わずに耐環境性
が向上した一般照明器具用に使用可能な反射鏡を提供す
ることを課題とする。SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a reflector which can be used for general lighting equipment with improved environmental resistance without substantially increasing the thickness of a protective film. As an issue.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、この発明は、反射面となる光輝金属面が保護膜で覆
われている反射鏡において、前記保護膜が、保護膜材と
耐候性改善材とを同時に蒸発させて堆積させた複合体の
蒸着層を含む。以下、この発明の反射鏡を、その構成例
をあらわす図１を適宜参照しながら具体的に説明する。In order to solve the above-mentioned problems, the present invention relates to a reflecting mirror in which a bright metal surface serving as a reflecting surface is covered with a protective film, wherein the protective film is made of a material having a protective film and weather resistance. Of the composite deposited by evaporating the
Including a vapor deposition layer . Hereinafter, the reflecting mirror of the present invention will be specifically described with reference to FIG.
【０００７】図１にみるように、この発明の反射鏡１で
は、普通、基板２の上に下地塗装３を施した上に光輝金
属膜４を設け、その上に保護膜５を形成するという形態
をとる。まず、反射鏡１で使われる基板２としては、金
属基板、プラスチック基板、さらにはガラス基板やセラ
ミック基板などが挙げられる。金属基板には、Ａｌ（ア
ルミニウム）、Ａｌ合金、Ｆｅ（鉄）、Ｆｅ合金、ＳＵ
Ｓ等の板状材をプレス成形やヘラ絞り成形等の成形方法
によって所定の鏡形状に仕上げたものが例示される。基
板の表面は研磨（下地処理）などで極力滑らかにしてお
くことが好ましいが、必須ではない。プラスチック基板
やガラス基板には、プラスチック材（ポリカーボネイ
ト、ナイロン、ポリイミドなど）やガラス材を金型成形
（射出成形やプレス成形）により所定の鏡形状に仕上げ
たものが例示される。As shown in FIG. 1, in a reflecting mirror 1 of the present invention, usually, a base metal 3 is applied on a substrate 2, a bright metal film 4 is provided, and a protective film 5 is formed thereon. Take the form. First, the substrate 2 used in the reflecting mirror 1 includes a metal substrate, a plastic substrate, a glass substrate, a ceramic substrate, and the like. Al (aluminum), Al alloy, Fe (iron), Fe alloy, SU
An example is a plate-like material such as S that has been finished to a predetermined mirror shape by a molding method such as press molding or spatula drawing. Preferably, the surface of the substrate is made as smooth as possible by polishing (base treatment), but this is not essential. Examples of the plastic substrate and the glass substrate include those obtained by finishing a plastic material (polycarbonate, nylon, polyimide, or the like) or a glass material into a predetermined mirror shape by die molding (injection molding or press molding).
【０００８】上記の基板２に下地塗装３を先に施してお
いて（ガラス基板などの場合は下地塗装無しでもよ
い）、その上にアルミニウムや銀などで光輝金属膜４を
反射膜として形成する。この光輝金属膜の表面が反射面
となる。光輝金属膜は、真空蒸着法、イオンプレーティ
ング法、スパッタリング法などを用いて金属層を堆積形
成することで作製できる。上記の光輝金属膜を使う他、
成形した光輝金属基板（アルミニウム板）の表面を羽布
研磨後、化学研磨や電解研磨して仕上げた面を反射面用
の光輝金属面にする形態もある。The undercoat 3 is first applied to the substrate 2 (in the case of a glass substrate or the like, the undercoat may not be applied), and a bright metal film 4 is formed thereon as a reflective film using aluminum or silver. . The surface of the bright metal film becomes a reflection surface. The bright metal film can be manufactured by depositing and forming a metal layer using a vacuum deposition method, an ion plating method, a sputtering method, or the like. In addition to using the above bright metal film,
There is also a mode in which after polishing the surface of a formed bright metal substrate (aluminum plate) with a feather cloth, the surface finished by chemical polishing or electrolytic polishing is used as a bright metal surface for a reflection surface.
【０００９】そして、光輝金属面の上に透明の保護膜５
を形成する。この発明の場合、保護膜５が、保護膜材と
耐候性改善材の複合体である。保護膜材としては、透明
誘電体膜に出来るＳｉＯ2 ，ＴｉＯ2 ，Ａｌ2 Ｏ3 が挙
げられるし、これ以外にＭｇＦ2 なども挙げられ、耐候
性改善材としては、フッ素化合物（フルオロアルキルシ
ラン、四フッ化エチレンやフッ素樹脂など）、アクリル
系化合物、ジメチルシリコーン樹脂等が挙げられる。こ
れらの耐候性改善材は、保護膜の透光性・密着性を損な
うことなく撥水性があってピンホールによる不具合を抑
える働きをする。Then, a transparent protective film 5 is formed on the bright metal surface.
To form In the case of the present invention, the protective film 5 is a composite of a protective film material and a weather resistance improving material. Examples of the protective film material include SiO 2 , TiO 2 , and Al 2 O 3 that can be formed into a transparent dielectric film, and MgF 2 and the like. In addition, as a weather resistance improving material, a fluorine compound (fluoroalkylsilane) is used. , Ethylene tetrafluoride, fluorine resin, etc.), acrylic compounds, dimethyl silicone resin and the like. These weather resistance improving materials have water repellency without impairing the translucency and adhesion of the protective film, and work to suppress problems caused by pinholes.
【００１０】保護膜用の複合体の具体的形態としては、
耐候性改善材（例えば、フッ素化合物）が複合体（全体
で１００wt％）中に２０wt％以下の含有量で混在してお
り、厚みが０．３〜１．０μｍ程度の範囲のものが適当
である。耐候性改善材の含有量が２０wt％を越すと保護
膜の反射面に対する密着性低下や保護膜の硬度低下が問
題になる。膜厚みが０．３μｍ未満だと十分な保護性能
が得難く、１．０μｍを越すと反射率の低下や密着性の
低下を招来する。この場合、加えて、光輝金属面との間
に厚み１００〜５００Å程度の純耐候性改善材薄層（例
えば、純フッ素化合物層）を有するとともに表面側に厚
み１０００〜５０００Å程度の純耐候性改善材薄層（例
えば、純フッ素化合物層）を有する複合体がより好まし
い。例えば、低分子フッ素化合物のガス雰囲気で最初の
数分だけ保護膜材の堆積を止めて純フッ素化合物層を形
成し、ついで、保護膜材の堆積を行い低分子フッ素化合
物の混在する層を形成し、再び、保護膜材の堆積を止め
て純フッ素化合物層を形成するようにする。Specific examples of the composite for the protective film include:
A weather resistance improving material (for example, a fluorine compound) is mixed in the composite (100 wt% in total) at a content of 20 wt% or less, and a material having a thickness in the range of about 0.3 to 1.0 μm is suitable. is there. If the content of the weather resistance improving material exceeds 20% by weight, there is a problem in that the adhesion of the protective film to the reflective surface is reduced and the hardness of the protective film is reduced. If the film thickness is less than 0.3 μm, it is difficult to obtain sufficient protection performance, and if it exceeds 1.0 μm, the reflectivity and the adhesion are reduced. In this case, in addition, a pure weather resistance improving material thin layer (for example, a pure fluorine compound layer) having a thickness of about 100 to 500 ° is provided between the bright metal surface and the pure weather resistance improving material having a thickness of about 1000 to 5000 ° on the surface side. A composite having a thin material layer (for example, a pure fluorine compound layer) is more preferable. For example, the deposition of the protective film material is stopped for only the first few minutes in a gas atmosphere of a low molecular fluorine compound to form a pure fluorine compound layer, and then the protective film material is deposited to form a layer containing a low molecular fluorine compound. Then, the deposition of the protective film material is stopped again to form a pure fluorine compound layer.
【００１１】保護膜用の複合体の具体的形態は、上記の
場合に限らない。純保護膜材層の上に純耐候性改善材が
積層形成された２層構成の形態や、純保護膜材層の上下
に純耐候性改善材が積層形成された３層構成の形態も挙
げられる。この発明の反射鏡の用途としては、一般照明
用器具用の反射鏡が挙げられるが、これ以外の用途に使
われてもよい。The specific form of the composite for a protective film is not limited to the above case. A two-layer configuration in which a pure weather resistance improving material is laminated on a pure protective film material layer, and a three-layer configuration in which a pure weather resistance improving material is laminated above and below a pure protective film material layer are also given. Can be Examples of the use of the reflector of the present invention include a reflector for general lighting equipment, but it may be used for other purposes.
【００１２】[0012]
【作用】この発明の反射鏡の場合、保護膜が、保護膜材
と耐候性改善材の複合体であるため、保護膜を実質的に
厚くすることなく、耐環境性を向上させられる。その結
果、この発明の反射鏡は、雨や雪に晒される屋外や、Ｃ
ｌ2 ，Ｈ2 Ｓ，ＮＨ3 などの腐食性ガスを微量だけども
含む環境（プール、温泉、トイレ、台所など）、多湿環
境（風呂場など）および塩水のかかる環境（沿岸地帯）
など悪環境でも使用可能になり、一般照明器具用として
の適性も有するようになる。In the reflector according to the present invention, since the protective film is a composite of the protective film material and the weather resistance improving material, the environmental resistance can be improved without substantially increasing the thickness of the protective film. As a result, the reflecting mirror of the present invention can be used outdoors or under exposure to rain or snow.
Environments containing trace amounts of corrosive gases such as l 2 , H 2 S, and NH 3 (pools, hot springs, toilets, kitchens, etc.), humid environments (bathrooms, etc.) and environments subject to salt water (coastal zones)
It can be used even in a bad environment, and has suitability for general lighting equipment.
【００１３】[0013]
【実施例】以下、反射鏡の実施例を説明する。但し、実
施例のうち、この発明の実施例は、実施例１−３および
実施例５であり、実施例４は、この発明の技術範囲から
は外れる参考技術である。 −実施例１− 実施例１の反射鏡は図２に示す層構成をとる。基材であ
る板状のアルミニウム材をヘラ絞り成形により、パラボ
ラ状反射鏡形状とした後、アルカリ脱脂および化学研磨
をしてから、アクリルメラミン系塗料（大日本塗料社製
商品名：テクノン♯１０００）をスプレー法で塗布し
てから、熱風焼付炉で１８０℃、４０分焼成して厚み１
５μｍの下地塗装（アンダーコート）を施した。EXAMPLES Hereinafter, an embodiment of the anti Ikyo. However,
Among the embodiments, the embodiment of the present invention includes Embodiments 1-3 and
Example 5 is Example 5, and Example 4 is based on the technical scope of the present invention.
Is a reference technology that comes off. -Example 1-The reflecting mirror of Example 1 has a layer configuration shown in Fig. 2. A plate-shaped aluminum material as a base material is shaped into a parabolic reflector by spatula drawing, then alkali-degreased and chemically polished, and then an acrylic melamine-based paint (Dai Nippon Paint Co., Ltd. product name: Technon # 1000) ) Is applied by a spray method, and then baked at 180 ° C. for 40 minutes in a hot air baking furnace to obtain a thickness 1
An undercoat of 5 μm was applied.
【００１４】その後、真空蒸着法を用い、到達真空度１
×１０-5Torrとしタングステン線を用いた抵抗加熱法で
アルミニウムを蒸発させて反射膜用の光輝金属膜を形成
した。さらに、同様に真空蒸着法を用い、その上に保護
膜として、フルオロアルキルシラン添加後８×１０-5To
rrの操作圧力で電子銃（ＥＢ）を用いて保護膜材である
ＳｉＯ2 を蒸発させ、フルオロアルコキシシラン混入の
ＳｉＯ2 膜（複合体）を厚み５０００Åで形成し反射鏡
を得た。Thereafter, the ultimate vacuum degree of 1
Aluminum was evaporated by a resistance heating method using a tungsten wire at × 10 -5 Torr to form a bright metal film for a reflective film. Further, similarly, a vacuum evaporation method was used, and as a protective film thereon, 8 × 10 -5 To
The protective film material, SiO 2, was evaporated using an electron gun (EB) at an operating pressure of rr to form a SiO 2 film (composite) mixed with fluoroalkoxysilane with a thickness of 5000 ° to obtain a reflecting mirror.
【００１５】−実施例２− 実施例２の反射鏡は図３に示す層構成をとる。保護膜の
形成を、真空蒸着法を用い、フルオロアルキルシラン添
加後５×１０ -5Torrの操作圧力で電子銃（ＥＢ）を用い
て保護膜材であるＴｉＯ2 を蒸発させ、フルオロアルコ
キシシラン混入のＴｉＯ2 膜（複合体）を厚み８０００
Åで形成した他は、実施例１と同様にして反射鏡を得
た。Embodiment 2 The reflecting mirror of Embodiment 2 has a layer configuration shown in FIG. Protective film
The formation was carried out using a fluoroalkylsilane
5 × 10 after addition -FiveUsing an electron gun (EB) at operating pressure of Torr
TiO which is a protective film materialTwoEvaporate the fluoroalcohol
TiO with xysilaneTwoA membrane (composite) with a thickness of 8000
A reflector was obtained in the same manner as in Example 1 except that
Was.
【００１６】−実施例３− 実施例３の反射鏡は図４に示す層構成をとる。実施例１
と同様にして下地塗装を施したあと、高周波イオンプレ
ーティング法（２００Ｗ）でアルミニウムを蒸発させて
反射膜用の光輝金属膜を形成した。ついで、同様に高周
波イオンプレーティング法を用い、その上に保護膜とし
て、フルオロアルキルシラン添加後３×１０-4Torrの操
作圧力で電子銃（ＥＢ）を用いて保護膜材であるＳｉＯ
2 を蒸発させ、フルオロアルコキシシラン混入のＳｉＯ
2 膜（複合体）を厚み５０００Åで形成してから続けて
フルオロアルコキシシランだけの膜を厚み約５００Åで
形成し反射鏡を得た。Embodiment 3 The reflecting mirror of Embodiment 3 has a layer configuration shown in FIG. Example 1
After the undercoating was performed in the same manner as described above, aluminum was evaporated by a high-frequency ion plating method (200 W) to form a bright metal film for a reflection film. Next, a high-frequency ion plating method is used in the same manner, and a protective film is formed thereon by using an electron gun (EB) at an operation pressure of 3 × 10 −4 Torr after addition of fluoroalkylsilane.
2 is evaporated and the fluoroalkoxysilane mixed SiO
After two films (composite) were formed at a thickness of 5000 °, a film of only fluoroalkoxysilane was formed at a thickness of about 500 ° to obtain a reflecting mirror.
【００１７】−実施例４− 実施例４の反射鏡は図５に示す層構成をとる。実施例１
と同様にして下地塗装を施したあと、高周波イオンプレ
ーティング法（５００Ｗ）でアルミニウムを蒸発させて
反射膜用の光輝金属膜を形成した。ついで、同様に高周
波イオンプレーティング法を用い、その上に保護膜とし
て、アクリルモノマー添加後１×１０-4Torrの操作圧力
で電子銃（ＥＢ）を用いて保護膜材であるＡｌ2 Ｏ3 を
蒸発させ、アクリル混入Ａｌ2 Ｏ3 膜（複合体）を厚み
１．０μｍで形成し反射鏡を得た。Embodiment 4 The reflecting mirror of Embodiment 4 has a layer configuration shown in FIG. Example 1
After a base coat was applied in the same manner as described above, aluminum was evaporated by a high-frequency ion plating method (500 W) to form a bright metal film for a reflective film. Then, similarly using a high-frequency ion plating method, a protective film thereon, Al 2 O 3 at an operating pressure of 1 × 10 -4 Torr after adding acrylic monomer is a protective film material by using an electron gun (EB) Was evaporated to form an acrylic-mixed Al 2 O 3 film (composite) having a thickness of 1.0 μm to obtain a reflecting mirror.
【００１８】−実施例５− 実施例５の反射鏡は図６に示す層構成をとる。保護膜の
形成を、高周波イオンプレーティング法（５００Ｗ）を
用い、フルオロアルキルシラン添加後１×１０-4Torrの
操作圧力で電子銃（ＥＢ）を用いて保護膜材であるＭｇ
Ｆ2 を蒸発させ、フルオロアルコキシシラン混入のＭｇ
Ｆ2 膜（複合体）を厚み８０００Åで形成した他は、実
施例１と同様にして反射鏡を得た。Embodiment 5 The reflecting mirror of Embodiment 5 has a layer configuration shown in FIG. The protective film was formed using a high-frequency ion plating method (500 W), and after adding the fluoroalkylsilane, using an electron gun (EB) at an operating pressure of 1 × 10 −4 Torr and using an electron gun (EB) as the protective film material.
F 2 is evaporated and Mg containing fluoroalkoxysilane is mixed.
A reflecting mirror was obtained in the same manner as in Example 1 except that the F 2 film (composite) was formed at a thickness of 8000 °.
【００１９】−比較例１− 比較例１の反射鏡は図７に示す層構成をとる。実施例１
においてフルオロアルキルシランを混入せず、純ＳｉＯ
2 膜とするようにした他は同様にして反射鏡を得た。な
お、実施例１〜５の保護膜中のフッ素化合物やアクリル
の含有量は２０wt％以下であった。上で用いたフルオロ
アルキルシランの代表例として、化学式：ＣＦ3 （ＣＦ
2 ）5 ＣＨ2 ＣＨ2 ＳｉＣｌ3 であらわされる下記の構
造式で示されるペンタオクタフルオロトリクロロシラン
（東芝シリコン社製 商品名：ＴＳＬ８５２６）が挙げ
られる。Comparative Example 1 The reflecting mirror of Comparative Example 1 has a layer structure shown in FIG. Example 1
Pure SiO without mixing fluoroalkylsilane
A reflecting mirror was obtained in the same manner except that two films were used. In addition, the content of the fluorine compound and the acryl in the protective films of Examples 1 to 5 was 20% by weight or less. As a representative example of the fluoroalkylsilane used above, the chemical formula: CF 3 (CF
2 ) Pentaoctafluorotrichlorosilane (trade name: TSL8526, manufactured by Toshiba Silicon Corporation) represented by the following structural formula represented by 5 CH 2 CH 2 SiCl 3 .
【００２０】[0020]
【化１】 Embedded image
【００２１】実施例および比較例の反射鏡について、耐
食性試験、耐熱性試験、および、実用点灯試験を行っ
た。耐食性試験は、ＪＩＳ Ｚ ２３７１に準じた塩水
噴霧試験であり、データは耐久時間を示す。耐熱性試験
は、期間１８０日で１２０℃と２００℃の場合について
行い、試験前と試験後の反射率（波長５５５ｎｍ）を、
反射率測定装置（島津製作所ＵＶ−３５０）を使用して
測定した。With respect to the reflectors of Examples and Comparative Examples, a corrosion resistance test, a heat resistance test, and a practical lighting test were performed. The corrosion resistance test is a salt spray test according to JIS Z 2371, and the data indicate the durability time. The heat resistance test was performed for 120 days and 200 ° C. for a period of 180 days, and the reflectance (wavelength 555 nm) before and after the test was determined.
It measured using the reflectance measuring device (Shimadzu UV-350).
【００２２】実用点灯試験は、１ｋＷの水銀灯投光器に
装着し７３０日後の状態について、、外観で○（良
好）、×（不良）を判定した。 測定結果 試験結果 耐熱性（％） 耐食性試験 実用点灯試験 試験前 １２０℃ ２００℃ 実施例１ ５２８時間 ○ ８９ ８６ ８２ 実施例２ ５７６時間 ○ ８７ ８５ ８２ 実施例３ ５７６時間 ○ ８９ ８７ ８１ 実施例４ ５５２時間 ○ ８６ ８４ ８０ 実施例５ ５２８時間 ○ ８８ ８５ ８０ 比較例１ １９２時間 ○ ８９ ７１ ６３ 実施例と比較例の結果を比べれば、実施例の反射鏡は、
耐環境性が向上していることがよく分かる。In the practical lighting test, 装着 (good) and × (poor) were judged by appearance when the lamp was mounted on a 1 kW mercury lamp floodlight and after 730 days. Measurement result Test result Heat resistance (%) Corrosion resistance test Practical lighting test Before test 120 ° C. 200 ° C. Example 1 528 hours ○ 89 86 82 Example 2 576 hours ○ 87 85 82 Example 3 576 hours ○ 89 87 81 Example 4 552 hours ８６ 86 84 80 Example 5 528 hours ８８ 88 85 80 Comparative Example 1 192 hours 89 71 63 Comparing the results of the example and the comparative example,
It can be clearly seen that the environmental resistance is improved.
【００２３】[0023]
【発明の効果】この発明の反射鏡の場合、保護膜が、保
護膜材と耐候性改善材の複合体であるため、保護膜を実
質的に厚くすることなく、耐環境性が向上していて、悪
環境でも使用可能となり、一般照明器具用としての適性
も有するような実用性の高いものとなっている。According to the reflector of the present invention, since the protective film is a composite of the protective film material and the weather resistance improving material, the environmental resistance is improved without substantially increasing the thickness of the protective film. Therefore, it can be used even in a bad environment, and has high practicality that is suitable for general lighting equipment.
【図１】この発明の反射鏡の構成例をあらわす断面図で
ある。FIG. 1 is a cross-sectional view illustrating a configuration example of a reflecting mirror according to the present invention.
【図２】実施例１の反射鏡の層構成をあらわす断面図で
ある。FIG. 2 is a cross-sectional view illustrating a layer configuration of the reflecting mirror of the first embodiment.
【図３】実施例２の反射鏡の層構成をあらわす断面図で
ある。FIG. 3 is a cross-sectional view illustrating a layer configuration of a reflecting mirror according to a second embodiment.
【図４】実施例３の反射鏡の層構成をあらわす断面図で
ある。FIG. 4 is a cross-sectional view illustrating a layer configuration of a reflecting mirror according to a third embodiment.
【図５】実施例４の反射鏡の層構成をあらわす断面図で
ある。FIG. 5 is a cross-sectional view illustrating a layer configuration of a reflecting mirror according to a fourth embodiment.
【図６】実施例５の反射鏡の層構成をあらわす断面図で
ある。FIG. 6 is a cross-sectional view illustrating a layer configuration of a reflecting mirror according to a fifth embodiment.
【図７】比較例１の反射鏡の層構成をあらわす断面図で
ある。FIG. 7 is a cross-sectional view illustrating a layer configuration of a reflecting mirror of Comparative Example 1.
１ 反射鏡 ２ 基板 ３ 下地塗装 ４ 光輝金属膜 ５ 保護膜 DESCRIPTION OF SYMBOLS 1 Reflecting mirror 2 Substrate 3 Base coating 4 Bright metal film 5 Protective film
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G02B 5/08 - 5/10 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) G02B 5/08-5/10
Claims (2)
れている反射鏡において、前記保護膜が、保護膜材と耐
候性改善材とを同時に蒸発させて堆積させた複合体の蒸
着層を含み、 前記耐候性改善材がフッ素化合物であって、複合体中に
２０wt％以下の含有量で混在している ことを特徴とする
反射鏡。1. A reflecting mirror in which a bright metal surface serving as a reflecting surface is covered with a protective film, wherein the protective film is formed by evaporating a protective film material and a weather resistance improving material simultaneously and depositing a composite. look including the layer, the weather resistance improving agent is a fluorine compound, in the complex
A reflecting mirror characterized by being mixed at a content of 20 wt% or less .
Ａｌ2 Ｏ3 ，ＭｇＦ2 のうちの少なくとも一つである請
求項１に記載の反射鏡。2. The method according to claim 1, wherein said protective film material is made of SiO 2 , TiO 2 ,
Reflector according to Al 2 O 3, claim 1 is at least one of MgF 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13289492A JP3304396B2 (en) | 1992-05-25 | 1992-05-25 | Reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13289492A JP3304396B2 (en) | 1992-05-25 | 1992-05-25 | Reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05323108A JPH05323108A (en) | 1993-12-07 |
| JP3304396B2 true JP3304396B2 (en) | 2002-07-22 |
Family
ID=15092041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13289492A Expired - Lifetime JP3304396B2 (en) | 1992-05-25 | 1992-05-25 | Reflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3304396B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6059420B2 (en) * | 2011-03-25 | 2017-01-11 | 真人 佐々木 | Mirror manufacturing method |
| EP2725392A1 (en) * | 2012-10-29 | 2014-04-30 | Xxentria Technology Materials Co., Ltd. | Weatherproof high-reflection plate and manufacturing method thereof |
| CN113463037B (en) * | 2021-07-19 | 2022-10-11 | 秦皇岛本征晶体科技有限公司 | Method for coating reflecting film on outer surface of fluoride special-shaped light guide rod |
-
1992
- 1992-05-25 JP JP13289492A patent/JP3304396B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05323108A (en) | 1993-12-07 |
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