JPH04285034A - Bronze-colored mirror - Google Patents
Bronze-colored mirrorInfo
- Publication number
- JPH04285034A JPH04285034A JP7470891A JP7470891A JPH04285034A JP H04285034 A JPH04285034 A JP H04285034A JP 7470891 A JP7470891 A JP 7470891A JP 7470891 A JP7470891 A JP 7470891A JP H04285034 A JPH04285034 A JP H04285034A
- Authority
- JP
- Japan
- Prior art keywords
- film
- color tone
- bronze
- mirror
- tone control
- 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.)
- Granted
Links
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010974 bronze Substances 0.000 claims abstract description 12
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical group [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011521 glass Substances 0.000 abstract description 8
- 239000011651 chromium Substances 0.000 abstract description 7
- 229910052804 chromium Inorganic materials 0.000 abstract description 7
- 238000001771 vacuum deposition Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 31
- 235000019646 color tone Nutrition 0.000 description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ブロンズ色ミラーに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to bronze-colored mirrors.
【０００２】0002
【従来の技術及びその課題】従来より、ブロンズ色ミラ
ーでは、その断面図である図５に示すように、一般にガ
ラス基板１０とクロム等の反射膜１１との間に色調コン
トロール膜として酸化チタン（ＴｉＯ２）の薄膜１２を
設け、この酸化チタン薄膜１２とクロム反射膜１１の界
面での反射光の干渉によって像をブロンズ色に着色して
いた。このタイプのミラーでは、ブロンズ色に着色する
ために酸化チタン膜の膜厚は１５０〜３００Å程度に設
定されるが、その場合、Ａ光源反射率が約３８〜２５％
と低く、反射像が暗く見にくいという問題があった。BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 5, which is a cross-sectional view of a bronze-colored mirror, titanium oxide (titanium oxide) is generally used as a color tone control film between a glass substrate 10 and a reflective film 11 made of chromium or the like. A thin film 12 of TiO2) was provided, and the image was colored bronze by interference of reflected light at the interface between the titanium oxide thin film 12 and the chromium reflective film 11. In this type of mirror, the thickness of the titanium oxide film is set to about 150 to 300 Å to give it a bronze color, but in that case, the A light source reflectance is about 38 to 25%.
The problem was that the reflected image was dark and difficult to see.
【０００３】したがって、本発明の解決すべき技術的課
題は、ブロンズ色ミラーにおける反射率を向上させ、像
を見やすくすることである。[0003] Therefore, the technical problem to be solved by the present invention is to improve the reflectance of a bronze-colored mirror to make the image easier to see.
【０００４】0004
【課題を解決するための手段】上述の技術的課題を解決
するために、本発明に係るブロンズ色ミラーでは、色調
コントロール膜が酸化ケイ素から構成され、その組成を
ＳｉＯｘと表したときに、ｘの値が、０．８≦ｘ≦１．
２の範囲内に設定されている。なお、この色調コントロ
ール膜は、ガラス基板と反射膜の間だけでなく、ガラス
基板の表面に設けてもよい。[Means for Solving the Problems] In order to solve the above-mentioned technical problems, in the bronze mirror according to the present invention, the color tone control film is composed of silicon oxide, and when the composition is expressed as SiOx, x The value of 0.8≦x≦1.
It is set within the range of 2. Note that this color tone control film may be provided not only between the glass substrate and the reflective film but also on the surface of the glass substrate.
【０００５】[0005]
【作用】この構成の色調コントロール膜では、波長が約
５００ｎｍ以下の光が吸収される割合が高い。したがっ
て、このミラーでは５００ｎｍよりも波長の長い光の分
光反射率が高くなり、像がブロンズ色に着色される。な
お、ｘの値が小さくなるほど光の吸収率が高くなるので
、色調コントロール膜の膜厚を薄くすることができる。[Function] In the color tone control film having this structure, a high proportion of light having a wavelength of about 500 nm or less is absorbed. Therefore, this mirror has a high spectral reflectance for light with a wavelength longer than 500 nm, and the image is colored bronze. Note that the smaller the value of x, the higher the light absorption rate, so the thickness of the color tone control film can be made thinner.
【０００６】[0006]
【実施例】以下に、図１から図４に示した本発明の１実
施例に係るブロンズ色ミラーについて詳細に説明する。
図１は、このミラーの要部断面図である。図において、
１はガラス基板、２はクロム反射膜（膜厚５０ｎｍ）、
３は酸化ケイ素からなる色調コントロール膜である。こ
の色調コントロール膜３は、真空蒸着により１１０ｎｍ
の膜厚で形成したものであり、屈折率の測定値は１．７
９である。DESCRIPTION OF THE PREFERRED EMBODIMENTS A bronze mirror according to an embodiment of the present invention shown in FIGS. 1 to 4 will be described in detail below. FIG. 1 is a sectional view of essential parts of this mirror. In the figure,
1 is a glass substrate, 2 is a chrome reflective film (film thickness 50 nm),
3 is a color tone control film made of silicon oxide. This color tone control film 3 has a thickness of 110 nm by vacuum evaporation.
The measured refractive index was 1.7.
It is 9.
【０００７】色調コントロール膜３は、このように蒸着
により形成する場合には、成分としての酸素とケイ素の
比率を連続的に変化させることが可能である。すなわち
、色調コントロール膜３の組成を仮にＳｉＯｘと表した
ときに、ｘの値（ケイ素に対する酸素の割合）を、Ｓｉ
ＯやＳｉＯ２のような１や２だけでなく、その間の任意
の値に設定することが可能である。一方、このようにし
てｘの値を変化させた場合は、屈折率も連続的に変化す
る。この対応関係を、図２において、ｘの値を縦軸に、
屈折率を横軸に取ったグラフで示している。上述したよ
うに本実施例の色調コントロール膜３の屈折率は１．７
９であるので、ｘの値はこのグラフから１．１３である
ことが読み取れる。When the color tone control film 3 is formed by vapor deposition as described above, it is possible to continuously change the ratio of oxygen and silicon as components. That is, when the composition of the color tone control film 3 is temporarily expressed as SiOx, the value of x (ratio of oxygen to silicon) is expressed as SiOx.
It is possible to set not only 1 or 2 such as O or SiO2 but also any value between them. On the other hand, when the value of x is changed in this way, the refractive index also changes continuously. This correspondence relationship is shown in Figure 2 with the value of x on the vertical axis.
It is shown in a graph with the refractive index on the horizontal axis. As mentioned above, the refractive index of the color tone control film 3 of this example is 1.7.
9, so the value of x can be read from this graph as 1.13.
【０００８】本実施例では、色調コントロール膜３の成
膜後にクロム反射膜２を成膜した。クロム反射膜２の成
膜前の透過分光特性と表面反射分光特性を図３に示して
いる。このように、本実施例の色調コントロール膜３で
は、波長が約４５０ｎｍ以下の光の透過率が低く、それ
よりも波長の長い光がよく透過する。また、図４は、ク
ロム反射膜２を形成した後の反射分光特性を示すグラフ
である。図示するように、このミラーでは、ブロンズ色
を得るのに必要な波長が約５００ｎｍ以上の光が約４６
％程度の割合で反射される。In this example, the chromium reflective film 2 was formed after the color tone control film 3 was formed. FIG. 3 shows the transmission spectral characteristics and surface reflection spectral characteristics of the chromium reflective film 2 before film formation. As described above, the color tone control film 3 of this embodiment has a low transmittance for light having a wavelength of approximately 450 nm or less, and transmits light having a longer wavelength well. Moreover, FIG. 4 is a graph showing the reflection spectral characteristics after forming the chromium reflective film 2. As shown in the figure, with this mirror, the light with a wavelength of about 500 nm or more required to obtain a bronze color is about 46 nm.
% is reflected.
【０００９】一方、比較例として、図５で説明したよう
に色調コントロール膜に酸化チタンを用いたブロンズ色
ミラーの反射分光特性を図６に示している。図示するよ
うに、このミラーでは、波長が約５００ｎｍ以上の光の
分光反射率は約３６％程度である。この値は、本実施例
のミラーよりも約１０％低い値である。On the other hand, as a comparative example, FIG. 6 shows the reflection spectral characteristics of a bronze-colored mirror using titanium oxide for the color tone control film as explained in FIG. As shown in the figure, this mirror has a spectral reflectance of about 36% for light having a wavelength of about 500 nm or more. This value is about 10% lower than the mirror of this example.
【００１０】次に、本実施例のミラーと比較例のミラー
の色調について説明する。本実施例のミラーの色調は、
Ｌａｂ表示（標準光源Ｃによる）によれば、Ｌ＝６８．
１２、ａ＝−２．１０、ｂ＝６．７４となる。また、比
較例のミラーの色調は、Ｌ＝６０．０７、ａ＝−２．１
４、ｂ＝７．０４となる。この表示法では、Ｌは明るさ
を表し、ａ及びｂは、それぞれ、赤と緑の間及び黄と青
の間の色調を示し、絶対値が大きくなるに従って、ａ表
示では赤（＋の値）あるいは緑（−の値）の度合いが強
くなり、ｂ表示では黄（＋の値）あるいは青（−の値）
の度合いが強くなる。したがって、本実施例のミラーが
、比較例のミラーに対して色調がほとんど変わらずに明
るさが向上したことが分かる。Next, the color tones of the mirror of this example and the mirror of a comparative example will be explained. The color tone of the mirror in this example is
According to the Lab display (based on standard illuminant C), L=68.
12, a=-2.10, b=6.74. In addition, the color tone of the mirror in the comparative example is L=60.07, a=-2.1
4, b=7.04. In this display method, L represents brightness, and a and b represent the hue between red and green and between yellow and blue, respectively. As the absolute value increases, in a display, red (+ value ) or green (-value) becomes stronger, and in b display, yellow (+ value) or blue (- value)
The degree of Therefore, it can be seen that the mirror of this example has improved brightness with almost no difference in color tone compared to the mirror of the comparative example.
【００１１】なお、このミラーでは色調コントロール膜
のｘの値は１．１３であったが、それ以外にも、この値
を０．８から１．２程度の範囲内に設定すれば、ミラー
におけるブロンズ色の色調を得るとともに明るさの低下
を防止できる。また、この実施例では色調コントロール
膜３をガラス基板１の表面に設けているが、ガラス基板
１とクロム反射膜２との間に設けてもよい。また、反射
膜としては、クロム以外にも、アルミニウム、銀、ニッ
ケル、銅等の金属、あるいはそれらの合金を用いてもよ
い。[0011] In this mirror, the value of x of the color tone control film was 1.13, but if this value is set within the range of about 0.8 to 1.2, It is possible to obtain a bronze tone and prevent a decrease in brightness. Further, although the color tone control film 3 is provided on the surface of the glass substrate 1 in this embodiment, it may be provided between the glass substrate 1 and the chrome reflective film 2. In addition to chromium, metals such as aluminum, silver, nickel, and copper, or alloys thereof may be used as the reflective film.
【００１２】0012
【発明の効果】以上説明したように、本実施例のミラー
では比較例のミラーに対して反射率が約１０％改善され
る。したがって、比較例に比べて、像が明るく見やすく
なる。As explained above, the reflectance of the mirror of this example is improved by about 10% compared to the mirror of the comparative example. Therefore, the image becomes brighter and easier to see than in the comparative example.
【図１】 本発明に係るブロンズ色ミラーの断面図で
ある。FIG. 1 is a sectional view of a bronze mirror according to the present invention.
【図２】 色調コントロール膜における酸素とケイ素
の成分比に対する屈折率の変化を示すグラフである。FIG. 2 is a graph showing changes in refractive index with respect to the component ratio of oxygen and silicon in a color tone control film.
【図３】 色調コントロール膜の透過分光特性及び表
面反射分光特性を示すグラフである。FIG. 3 is a graph showing transmission spectral characteristics and surface reflection spectral characteristics of a color tone control film.
【図４】 このミラーの反射分光特性を示すグラフで
ある。FIG. 4 is a graph showing the reflection spectral characteristics of this mirror.
【図５】 従来例に係るブロンズ色ミラーの断面図で
ある。FIG. 5 is a sectional view of a bronze mirror according to a conventional example.
【図６】 従来例に係るブロンズ色ミラーの反射分光
特性を示すグラフである。FIG. 6 is a graph showing the reflection spectral characteristics of a bronze mirror according to a conventional example.
１ ガラス基板 ２ クロム反射膜 ３ 色調コントロール膜 1 Glass substrate 2. Chrome reflective film 3. Color tone control film
Claims (1)
と、色調コントロール膜（３）とからなるブロンズ色ミ
ラーにおいて、上記色調コントロール膜（３）が酸化ケ
イ素で構成され、その組成をＳｉＯｘと表したときに、
ｘの値が、０．８≦ｘ≦１．２の範囲内に設定されたこ
とを特徴とするブロンズ色ミラー。[Claim 1] A transparent substrate (1) and a metal reflective film (2)
and a color tone control film (3), when the color tone control film (3) is composed of silicon oxide and its composition is expressed as SiOx,
A bronze mirror characterized in that the value of x is set within the range of 0.8≦x≦1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3074708A JP2561757B2 (en) | 1991-03-14 | 1991-03-14 | Bronze color mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3074708A JP2561757B2 (en) | 1991-03-14 | 1991-03-14 | Bronze color mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04285034A true JPH04285034A (en) | 1992-10-09 |
| JP2561757B2 JP2561757B2 (en) | 1996-12-11 |
Family
ID=13554999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3074708A Expired - Lifetime JP2561757B2 (en) | 1991-03-14 | 1991-03-14 | Bronze color mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2561757B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004100731A1 (en) * | 2003-05-14 | 2004-11-25 | Murakami Corporation | Anti-fog mirror |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5489866A (en) * | 1977-12-27 | 1979-07-17 | Asahi Glass Co Ltd | Colored mirror |
| JPS62108207A (en) * | 1985-11-06 | 1987-05-19 | Tokai Rika Co Ltd | Colored mirror |
| JPH03126644A (en) * | 1989-10-12 | 1991-05-29 | Asahi Optical Co Ltd | Production of reflecting mirror |
-
1991
- 1991-03-14 JP JP3074708A patent/JP2561757B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5489866A (en) * | 1977-12-27 | 1979-07-17 | Asahi Glass Co Ltd | Colored mirror |
| JPS62108207A (en) * | 1985-11-06 | 1987-05-19 | Tokai Rika Co Ltd | Colored mirror |
| JPH03126644A (en) * | 1989-10-12 | 1991-05-29 | Asahi Optical Co Ltd | Production of reflecting mirror |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004100731A1 (en) * | 2003-05-14 | 2004-11-25 | Murakami Corporation | Anti-fog mirror |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2561757B2 (en) | 1996-12-11 |
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