JPS58105201A - Reflective mirror - Google Patents
Reflective mirrorInfo
- Publication number
- JPS58105201A JPS58105201A JP56204864A JP20486481A JPS58105201A JP S58105201 A JPS58105201 A JP S58105201A JP 56204864 A JP56204864 A JP 56204864A JP 20486481 A JP20486481 A JP 20486481A JP S58105201 A JPS58105201 A JP S58105201A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- reflective mirror
- ester
- isotropic graphite
- thermal expansion
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
Abstract
Description
【発明の詳細な説明】
本発明は、高エネルギー密度の光を反射するのに好適な
反射鏡に係シ、特に、等方性黒鉛の表面に有機エステル
化金属の熱分解によって生成した均一の酸化物薄膜を形
成し、該酸化物薄膜の上にアルミニウム等を蒸着して反
射面とし、もって、有機エステル化金属の熱分解によっ
て生成した酸化物薄膜によって耐熱性及び表面の均一性
を保証し、等方性黒鉛によって熱膨張ゼ化及び放熱性を
保証するようにしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reflecting mirror suitable for reflecting high energy density light, and particularly relates to a reflecting mirror suitable for reflecting high energy density light. A thin oxide film is formed, and aluminum or the like is deposited on the oxide thin film to form a reflective surface, thereby ensuring heat resistance and surface uniformity due to the oxide thin film generated by thermal decomposition of the organic esterified metal. , isotropic graphite ensures thermal expansion and heat dissipation.
本出願人は、先に、太陽光エネルギーを集束して光導体
内に導入し、該光導体を通して任意所望の筒所へ伝達シ
、照明その他の種々の用途に供することについて提案し
た。而して、太陽光エネルギーを集束する手段として、
レンズ系によって集束する方式と、反射鏡によって集束
する方式があるが、反射鏡１（よって集束する場合、ま
ず、受光面積の広い例えばパラボラ反射鏡で太陽光を受
け、該パラボラ反射鏡の焦点近傍に第２の反射鏡を設け
、前記パラボラ反射鏡で集束した太陽光を前記第２の反
射鏡で集束し、更には、該第２の反射鏡の焦点近傍に第
３の反射鏡を設け、これらの反射鏡によって太陽光を集
束して直径の小さな光導体内に導入するようにしている
。しかし、このように反射鏡を多段に縦続接続して使用
する場合、太陽光が集束されるにつれて光エネルギー密
度が高くなり、従来、次のような問題があった。The applicant has previously proposed that solar energy be focused and introduced into a light guide through which it can be transmitted to any desired location for use in lighting, lighting, and various other uses. Therefore, as a means of focusing solar energy,
There is a method of focusing using a lens system and a method of focusing using a reflecting mirror.In the case of focusing using the reflecting mirror 1, first, sunlight is received by a parabolic reflecting mirror with a large light receiving area, and then the sunlight is focused near the focal point of the parabolic reflecting mirror. a second reflecting mirror is provided, the sunlight focused by the parabolic reflecting mirror is focused by the second reflecting mirror, and further a third reflecting mirror is provided near the focal point of the second reflecting mirror, These mirrors focus the sunlight into a small diameter light guide. However, when using multiple mirrors in cascade, the light becomes more concentrated as the sunlight is focused. Conventionally, the energy density has increased, causing the following problems.
（１）反射鏡は耐熱性に弱く、該反射鏡の熱膨張等。(1) Reflecting mirrors have poor heat resistance, such as thermal expansion of the reflecting mirrors.
によって光学系路が資化してしまい、集光能率が低下す
る。As a result, the optical system path becomes utilized, and the light collection efficiency decreases.
１１ノ）反射鏡の熱膨張率が比較的大きく、光エネルギ
ー密度にむらがある場合、局部的な膨張によって砲裂し
てしまう。11) If the coefficient of thermal expansion of the reflecting mirror is relatively large and the optical energy density is uneven, the reflecting mirror will burst due to local expansion.
（３）急激な温度変化に耐えられず、例えば、パイレッ
クス耐熱性ガラスにおいては、爆発する危険がある。(3) It cannot withstand sudden temperature changes, and there is a risk of explosion in Pyrex heat-resistant glass, for example.
（４）石英ガラスの場合には、硬すぎて加工が困難であ
り、また、高価である。(4) In the case of quartz glass, it is too hard and difficult to process, and it is also expensive.
本発明は、上述のごとき実情に鑑みてなされたもので、
特に、等方性黒鉛からな−る基板の表面に有機エステル
化金属の熱分解により均一の酸化物薄膜を生成し、該酸
化物薄膜の上にアルミニウム等を蒸着して反射膜を形成
し、もって、耐熱性に優れ、熱膨張、熱変形、熱爆発等
がなく、シかも、熱伝導性及び光反射性能の優れた反射
鏡を提供しようとするものである。The present invention was made in view of the above-mentioned circumstances, and
In particular, a uniform oxide thin film is generated on the surface of a substrate made of isotropic graphite by thermal decomposition of an organic esterified metal, and aluminum or the like is deposited on the oxide thin film to form a reflective film. Thus, the present invention aims to provide a reflecting mirror that has excellent heat resistance, is free from thermal expansion, thermal deformation, thermal explosion, etc., and has excellent thermal conductivity and light reflecting performance.
図は、本発明による反射鏡の一実施例を説明するだめの
側断面図で、図中、１は等方性黒鉛等の熱伝導率の優れ
た基板、２は有機エステル化金属の熱分解によって均一
に生成された酸化物薄膜、３はアルミニウム等の蒸着反
射膜で、前記酸化物薄膜２は、等方性黒鉛からなる基板
１の上に、有機エステル化金属（例えばチタン）の醋酸
エステル溶液（Ｔｉｅ２濃度約５％）をはけ、スプレー
等によって塗布した後乾燥し、次いで、Ｎ２ 等の不
活性ガスをキャリアガスとするハロゲンガスの流通雰囲
気中にセットし、１℃／ｍｉｎ以下の極めてゆるやかな
昇温速度で加熱し、所望温度に所定時間保持した後徐冷
し、次いで、所望温度の真空中で加熱保持した後徐冷す
る。斯様にして有機エステル化金属を熱分解して生成し
た酸化物薄膜は、従来のコーテング薄膜に比して耐熱性
が非常に高く、シかも、表面が均一に形成されるので、
その上にアルミニウム等を均一に蒸着することは容易で
あり、従って、反射効率の優れた反射面を形成すること
ができる。また、本ｙｋ−４４においては、上述のごと
き反射面を耐熱及び熱伝導性の優れた等方性黒鉛の上に
設けるようにしたので、熱膨張、熱変形、熱爆発等の虞
れもない。−なお、熱の放散を更によくするために、等
方性黒鉛にフィン等の放熱面を形成したＹ１該等方性黒
鉛を水冷或いは空冷するようにしてもよいことは容易に
理解できよう。The figure is a side cross-sectional view for explaining one embodiment of the reflecting mirror according to the present invention. The oxide thin film 3 is a vapor-deposited reflective film made of aluminum or the like, and the oxide thin film 2 is made of an acetic acid ester of an organic esterified metal (for example, titanium) on a substrate 1 made of isotropic graphite. Brush the solution (Tie2 concentration about 5%), apply it by spraying, etc., dry it, then set it in a halogen gas circulation atmosphere with an inert gas such as N2 as a carrier gas, and heat it at a rate of 1°C/min or less. It is heated at a very slow rate of temperature increase, maintained at a desired temperature for a predetermined period of time, and then slowly cooled, then heated and maintained in a vacuum at the desired temperature, and then slowly cooled. The oxide thin film produced by thermally decomposing the organic esterified metal in this way has much higher heat resistance than conventional coating thin films, and also has a uniform surface.
It is easy to uniformly deposit aluminum or the like thereon, and therefore a reflective surface with excellent reflection efficiency can be formed. In addition, in this YK-44, the above-mentioned reflective surface is provided on isotropic graphite, which has excellent heat resistance and thermal conductivity, so there is no risk of thermal expansion, thermal deformation, thermal explosion, etc. . - It is easily understood that in order to further improve heat dissipation, the Y1 isotropic graphite in which heat dissipation surfaces such as fins are formed on the isotropic graphite may be water-cooled or air-cooled.
図は、本発明による反射鏡の一実施例を説明するだめの
側断面図である。
１・・等方性黒鉛の基板、２山酸化物薄膜、３・・・ア
ルミニウム蒸着膜？The figure is a side sectional view illustrating an embodiment of a reflecting mirror according to the present invention. 1... Isotropic graphite substrate, bilayer oxide thin film, 3... Aluminum evaporated film?
Claims (1)
解により生成した均一の酸化物薄膜を有し、該酸化物薄
膜の表面にアルミニウム等の蒸着薄膜を有することを特
徴とする反射鏡。 １′と）、前記等方性黒鉛に冷却手段を設けたことを特
徴とする特許請求の範囲第（１）項に記載の反射鏡。(1) Reflection characterized by having a uniform oxide thin film generated by thermal decomposition of an organic esterified metal on the surface of 8-isotropic graphite, and having a vapor-deposited thin film of aluminum or the like on the surface of the oxide thin film. mirror. 1'), the reflecting mirror according to claim 1, further comprising a cooling means for the isotropic graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56204864A JPS58105201A (en) | 1981-12-18 | 1981-12-18 | Reflective mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56204864A JPS58105201A (en) | 1981-12-18 | 1981-12-18 | Reflective mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58105201A true JPS58105201A (en) | 1983-06-23 |
Family
ID=16497656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56204864A Pending JPS58105201A (en) | 1981-12-18 | 1981-12-18 | Reflective mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58105201A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120204A (en) * | 1982-01-11 | 1983-07-18 | Takashi Mori | Optical path changeover switch |
| KR100496363B1 (en) * | 2001-04-13 | 2005-06-21 | 가부시키가이샤 히타치세이사쿠쇼 | Light source for projection device and projection type image display device using the same |
-
1981
- 1981-12-18 JP JP56204864A patent/JPS58105201A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120204A (en) * | 1982-01-11 | 1983-07-18 | Takashi Mori | Optical path changeover switch |
| KR100496363B1 (en) * | 2001-04-13 | 2005-06-21 | 가부시키가이샤 히타치세이사쿠쇼 | Light source for projection device and projection type image display device using the same |
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