JP2839037B2 - Light beam heating device - Google Patents
Light beam heating deviceInfo
- Publication number
- JP2839037B2 JP2839037B2 JP2340878A JP34087890A JP2839037B2 JP 2839037 B2 JP2839037 B2 JP 2839037B2 JP 2340878 A JP2340878 A JP 2340878A JP 34087890 A JP34087890 A JP 34087890A JP 2839037 B2 JP2839037 B2 JP 2839037B2
- Authority
- JP
- Japan
- Prior art keywords
- reflecting mirror
- light
- heated
- light beam
- optical fiber
- 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 - Fee Related
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Control Of Resistance Heating (AREA)
- Laser Beam Processing (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、半田付け用加熱、細径ポリウレタン線の皮
膜除去、樹脂の加熱加工などに利用される光ビーム加熱
装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light beam heating apparatus used for heating for soldering, removing a thin polyurethane wire film, and heating a resin.
従来の技術 近年、光ビーム加熱装置は非接触で安定した局部加熱
ができなくなることから、表面実装部品等の回路基板へ
の半田付けや、細径ポリウレタン線の皮膜除去、或いは
樹脂の加熱加工等に用いられ、その有用性が認められつ
つある。2. Description of the Related Art In recent years, since a light beam heating device cannot perform stable local heating without contact, it has been difficult to solder a surface-mounted component to a circuit board, remove a thin polyurethane wire film, or heat a resin. And its usefulness is being recognized.
従来の光ビーム加熱装置の構成を第３図、第４図によ
り説明する。The configuration of a conventional light beam heating device will be described with reference to FIGS.
第３図において、11はクセノンランプ等の発光ラン
プ、12は楕円反射鏡、13は楕円反射鏡12の第１焦点、14
は第２焦点であり、第１焦点13に配置された発光ランプ
11から放射された光エネルギーを楕円反射鏡12にて反射
し、第２焦点14の近傍に集光させる。この第２焦点14に
は光ファイバ15の一端が配置され、光ファイバ15の他端
にはレンズホルダ16にて集光レンズ17が対向配置されて
おり、光ファイバ15の一端に入射した光エネルギーをそ
の他端から出射させ、集光レンズ17にて被加熱物18に集
光させて照射し、その照射部位を加熱する。In FIG. 3, reference numeral 11 denotes a light-emitting lamp such as a xenon lamp, 12 denotes an elliptical reflecting mirror, 13 denotes a first focal point of the elliptical reflecting mirror 12,
Is a second focal point, and a light emitting lamp arranged at the first focal point 13
The light energy radiated from 11 is reflected by the elliptical reflecting mirror 12 and collected near the second focal point 14. One end of an optical fiber 15 is disposed at the second focal point 14, and a condensing lens 17 is disposed opposite to the other end of the optical fiber 15 by a lens holder 16. Is emitted from the other end, and is condensed and irradiated on the object to be heated 18 by the condenser lens 17 to heat the irradiated area.
第４図は光ファイバを用いずに第２焦点14の近傍に被
加熱物18を配置し、この被加熱物18を直接加熱するよう
にしたものである。FIG. 4 shows an arrangement in which an object to be heated 18 is arranged near the second focal point 14 without using an optical fiber, and the object to be heated 18 is directly heated.
そして、楕円反射鏡12には、発光ランプ11において発
光した光エネルギーを有効に利用するため、反射効率が
よく、耐久性に優れた反射鏡が用いられている。As the elliptical reflecting mirror 12, a reflecting mirror having good reflection efficiency and excellent durability is used in order to effectively use light energy emitted from the light emitting lamp 11.
発明が解決しようとする課題 ところで、このような光ビーム加熱装置においては、
使用目的によって光エネルギーの利用波長領域が異なる
場合がある。例えば、光ビーム加熱装置を半田付け目的
のために使用する場合は、可視波長から赤外線波長領域
の光が有効であり、紫外領域の光はプリント基板を焦が
すことが多く、この領域の光は遮断した方が良い結果が
得られる。一方、耐熱性皮膜の除去には、紫外波長領域
の光が高分子材料の分解に有効であり、積極的に紫外領
域の波長成分を利用する必要がある。Problems to be Solved by the Invention By the way, in such a light beam heating device,
The use wavelength range of light energy may differ depending on the purpose of use. For example, when a light beam heating device is used for soldering purposes, light in the visible to infrared wavelength range is effective, and light in the ultraviolet range often burns the printed circuit board, blocking light in this range. Better results are obtained. On the other hand, in the removal of the heat-resistant film, light in the ultraviolet wavelength region is effective for decomposing the polymer material, and it is necessary to actively use the wavelength component in the ultraviolet region.
このように、単に光エネルギーの反射効率だけを考慮
した光ビーム加熱装置では、加熱対象の特徴や使用目的
に応じて有効かつ効率的に加熱することができないとい
う問題があった。As described above, in the light beam heating apparatus that simply considers the reflection efficiency of light energy, there is a problem that heating cannot be effectively and efficiently performed according to the characteristics of the object to be heated or the purpose of use.
本発明は加熱対象に適した波長領域の光エネルギーを
用いて有効かつ効率的に加熱することができる光ビーム
加熱装置を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a light beam heating device capable of effectively and efficiently heating using light energy in a wavelength region suitable for a heating target.
課題を解決するための手段 上記問題点を解決するために、本発明の第１発明は、
発光ランプと楕円反射鏡を備え、発光ランプの発光部を
楕円反射鏡の第１焦点に位置させ、楕円反射鏡の第２焦
点に集光された光にて被加熱物を加熱する光ビーム加熱
装置において、楕円反射鏡の反射面を、加熱対象に適応
した波長の光エネルギーを選択的に反射する金属材料の
メッキ層にて構成したことを特徴とする。Means for Solving the Problems To solve the above problems, a first invention of the present invention is:
A light beam heating device comprising a light emitting lamp and an elliptical reflecting mirror, wherein a light emitting portion of the light emitting lamp is positioned at a first focal point of the elliptical reflecting mirror, and the object to be heated is heated by light collected at a second focal point of the elliptical reflecting mirror. The apparatus is characterized in that the reflecting surface of the elliptical reflecting mirror is constituted by a plating layer of a metal material that selectively reflects light energy having a wavelength suitable for the object to be heated.
又、本発明の第２発明は上記構成に加えて楕円反射鏡
の第２焦点に光ファイバの一端を配置し、この光ファイ
バの他端にコーン状反射鏡と集光用レンズを配置し、コ
ーン状反射鏡の反射面を、加熱対象に適応した波長の光
エネルギーを選択的に反射する金属材料のメッキ層にて
構成したことを特徴とする。According to a second aspect of the present invention, in addition to the above configuration, one end of an optical fiber is arranged at a second focal point of the elliptical reflecting mirror, and a cone-shaped reflecting mirror and a condensing lens are arranged at the other end of the optical fiber. The reflecting surface of the cone-shaped reflecting mirror is constituted by a plating layer of a metal material that selectively reflects light energy having a wavelength suitable for a heating target.
作 用 本発明によれば、発光ランプからの光は楕円反射鏡に
より反射、集光される。その際に楕円反射鏡の反射面が
加熱対象に対応した金属材料のメッキ層にて構成されて
いることによって、加熱対象に適応した波長の光エネル
ギーが選択的に反射され、加熱対象を有効にかつ効率的
に加熱する。According to the present invention, light from a light-emitting lamp is reflected and condensed by an elliptical reflecting mirror. At that time, the reflecting surface of the elliptical reflecting mirror is made of a plating layer of a metal material corresponding to the object to be heated, so that light energy having a wavelength suitable for the object to be heated is selectively reflected, and the object to be heated can be effectively used. And heat efficiently.
また、第２焦点に配した光ファイバの一端から入射し
て他端から出射した光は、コーン状の反射鏡にて無駄な
く集光用レンズに入射され、この集光用レンズにより集
光されて加熱対象に照射される。その際にもコーン状反
射鏡の反射面で加熱対象に適応した波長の光エネルギー
が選択的に反射され、加熱対象を有効にかつ効率的に加
熱する。Light incident from one end of the optical fiber disposed at the second focal point and emitted from the other end is incident on the condenser lens without waste by the cone-shaped reflecting mirror, and is collected by the condenser lens. The heating target is irradiated. At that time, light energy having a wavelength suitable for the object to be heated is selectively reflected by the reflecting surface of the cone-shaped reflecting mirror, and the object to be heated is effectively and efficiently heated.
実施例 以下、本発明の一実施例について第１図及び第２図を
参照して説明する。Embodiment An embodiment of the present invention will be described below with reference to FIG. 1 and FIG.
第１図において、１はクセノンランプ等の発光ラン
プ、２は楕円反射鏡である。３は楕円反射鏡２の第１焦
点、４は楕円反射鏡２の第２焦点であり、第１焦点３に
配置された発光ランプ１から放射された光エネルギーは
楕円反射鏡２によって反射されて第２焦点４に向けて集
光される。この第２焦点４には光ファイバ５の一端の入
射端5aが配置され、この光ファイバ５の他端の出射端5b
にはコーン状反射鏡６と、集光用レンズ７を内部に保持
したホルダー８が装着されており、光ファイバ５の入射
端5aに入射した光エネルギーをその出射端5bから出射さ
せ、コーン状反射鏡６にて反射させて無駄なく集光レン
ズ17に入射させてるとともに集光レンズ17にて集光して
被加熱物９に照射し、その照射部位を加熱する。In FIG. 1, 1 is a light-emitting lamp such as a xenon lamp, and 2 is an elliptical reflecting mirror. Reference numeral 3 denotes a first focal point of the elliptical reflecting mirror 2, 4 denotes a second focal point of the elliptical reflecting mirror 2, and light energy emitted from the light emitting lamp 1 disposed at the first focal point 3 is reflected by the elliptical reflecting mirror 2. The light is focused toward the second focal point 4. At the second focal point 4, an input end 5a at one end of the optical fiber 5 is disposed, and an output end 5b at the other end of the optical fiber 5.
A cone-shaped reflecting mirror 6 and a holder 8 holding a condensing lens 7 therein are mounted on the optical fiber 5, and light energy incident on an input end 5a of the optical fiber 5 is emitted from an output end 5b thereof, and a cone-shaped The light is reflected by the reflecting mirror 6 and is incident on the condenser lens 17 without waste. The light is condensed by the condenser lens 17 and is irradiated on the object 9 to be heated, thereby heating the irradiated portion.
楕円反射鏡２の反射面は、被加熱物９の加熱目的によ
り、適当に選択された金属材料のメッキ層11にて構成さ
れており、コーン状反射鏡６の反射面も同様の金属材料
のメッキ層12にて構成されている。これらの反射面を構
成するメッキ層11、12には、例えば半田付け用の加熱目
的には金メッキが、高分子化合物の絶縁皮膜を除去する
目的にはアルミニウムメッキが選択される。The reflecting surface of the elliptical reflecting mirror 2 is constituted by a plating layer 11 of a metal material appropriately selected for the purpose of heating the object 9 to be heated, and the reflecting surface of the cone-shaped reflecting mirror 6 is formed of the same metal material. It is composed of a plating layer 12. For the plating layers 11 and 12 constituting these reflecting surfaces, for example, gold plating is selected for the purpose of heating for soldering, and aluminum plating is selected for the purpose of removing the insulating film of the polymer compound.
第２図に各種金属材料の反射特性の波長依存性を示し
てある。第２図から明らかなように、半田付け加熱の場
合など、赤外領域の光エネルギーが必要な場合には、反
射鏡の反射面に金メッキを行うことによって、赤外領域
のエネルギーを有効に利用し、不要な紫外領域のエネル
ギーを遮断することができる。また、細径ポリウレタン
線の皮膜除去などの高分子化合物の絶縁皮膜の除去の場
合など紫外領域の光エネルギーが必要な場合には、反射
鏡の反射面にアルミニウムメッキを行うことによって紫
外領域の光エネルギーまで有効に利用することができ
る。FIG. 2 shows the wavelength dependence of the reflection characteristics of various metal materials. As is evident from FIG. 2, when light energy in the infrared region is required, such as in the case of heating by soldering, the energy in the infrared region is effectively used by plating the reflecting surface of the reflecting mirror with gold. In addition, unnecessary energy in the ultraviolet region can be cut off. When light energy in the ultraviolet region is required, such as when removing the insulating film of a high molecular compound such as when removing the film of a thin polyurethane wire, the light in the ultraviolet region can be obtained by plating the reflecting surface of the reflector with aluminum. Energy can be used effectively.
このように、本実施例では被加熱物９の加熱目的に応
じて光エネルギーの必要な波長を選択して用いることが
でき、加熱対象に応じて有効にかつ効率的に加熱するこ
とができる。As described above, in the present embodiment, the required wavelength of the light energy can be selected and used according to the purpose of heating the object 9 to be heated, and the heating can be effectively and efficiently performed according to the object to be heated.
上記実施例では光ファイバ５を用いた例を示したが、
従来例の第４図と同様に、楕円反射鏡２で反射させて集
光した光を直接被加熱物９に照射させて加熱するように
してもよい。In the above embodiment, the example using the optical fiber 5 has been described.
As in the conventional example shown in FIG. 4, the object 9 may be heated by directly irradiating the object 9 with the light reflected and condensed by the elliptical reflecting mirror 2.
又、上記実施例では、楕円反射鏡２にその反射面を構
成するメッキ層11を一体的に形成した例を示したが、楕
円反射鏡２の本体部に対してメッキ層11を備えた反射体
を着脱可能に装着した構成とし、被加熱物の加熱目的に
応じて適当な反射体を任意に装着できるように構成する
ことができる。また、コーン状反射鏡６についても、ホ
ルダー８及び光ファイバ５に対して着脱可能に構成し
て、任意の金属材料のメッキ層12を備えたものと交換で
きるように構成することができる。Further, in the above embodiment, the example in which the plating layer 11 constituting the reflection surface is formed integrally with the elliptical reflecting mirror 2 has been described. The body can be configured to be detachably mounted, so that an appropriate reflector can be arbitrarily mounted according to the purpose of heating the object to be heated. Also, the cone-shaped reflecting mirror 6 can be configured so as to be detachable from the holder 8 and the optical fiber 5 so that it can be replaced with one having a plating layer 12 of an arbitrary metal material.
発明の効果 以上のように本発明によれば、楕円反射鏡の反射面が
加熱対象に適応した波長の光エネルギーを選択的に反射
する金属材料のメッキ層にて構成されているので、加熱
対象を有効にかつ効率的に加熱することができ、適用範
囲の広い光ビーム加熱装置を提供できる。Advantageous Effects of the Invention As described above, according to the present invention, since the reflecting surface of the elliptical reflecting mirror is formed of the plating layer of the metal material that selectively reflects the light energy having the wavelength suitable for the object to be heated, Can be effectively and efficiently heated, and a light beam heating apparatus having a wide application range can be provided.
又、第２発明によれば、光ファイバを用いた場合に、
その出射端から出射された光をコーン状の反射鏡にて無
駄なく集光用レンズに入射させて効率的に加熱でき、か
つそのコーン状反射鏡の反射面でも加熱対象に適応した
波長の光エネルギーが選択的に反射され、加熱対象を有
効にかつ効率的に加熱することができる。According to the second aspect, when an optical fiber is used,
The light emitted from the emission end can be efficiently incident on the condenser lens by the cone-shaped reflecting mirror and efficiently heated, and the light of the wavelength suitable for the object to be heated even on the reflecting surface of the cone-shaped reflecting mirror Energy is selectively reflected, and the object to be heated can be effectively and efficiently heated.
第１図は本発明の一実施例の光ビーム加熱装置の構造説
明図、第２図は各種金属材料の反射特性の波長依存性を
示す説明図、第３図は従来例の光ビーム加熱装置の構成
図、第４図は他の従来例の光ファイバを用いない光ビー
ム加熱装置の構成図である。 １……発光ランプ ２……楕円反射鏡 ５……光ファイバ ６……コーン状反射鏡 ７……集光レンズ ９……被加熱物 11、12……金属材料のメッキ層。FIG. 1 is a structural explanatory view of a light beam heating apparatus according to one embodiment of the present invention, FIG. 2 is an explanatory view showing the wavelength dependence of the reflection characteristics of various metal materials, and FIG. 3 is a conventional light beam heating apparatus. FIG. 4 is a block diagram of another conventional example of a light beam heating apparatus using no optical fiber. DESCRIPTION OF SYMBOLS 1 ... Light-emitting lamp 2 ... Elliptical reflecting mirror 5 ... Optical fiber 6 ... Conical reflecting mirror 7 ... Condensing lens 9 ... Heated object 11, 12 ... Metallic material plating layer.
フロントページの続き (72)発明者 越田 将悟 神奈川県横浜市栄区田谷町１番地 住友 電気工業株式会社横浜製作所内 (72)発明者 吉村 耕三 神奈川県横浜市栄区田谷町１番地 住友 電気工業株式会社横浜製作所内 (56)参考文献 特開 昭59−199187（ＪＰ，Ａ) 特開 平３−198989（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B23K 26/00 B23K 1/005 G02B 5/10Continued on the front page (72) Inventor Shogo Koshida 1 Tayacho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Inside Sumitomo Electric Industries, Ltd. (56) References JP-A-59-199187 (JP, A) JP-A-3-198989 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B23K 26/00 B23K 1/005 G02B 5/10
Claims (2)
プの発光部を楕円反射鏡の第１焦点に位置させ、楕円反
射鏡の第２焦点に集光された光にて被加熱物を加熱する
光ビーム加熱装置において、楕円反射鏡の反射面を、加
熱対象に適応した波長の光エネルギーを選択的に反射す
る金属材料のメッキ層にて構成したことを特徴とする光
ビーム加熱装置。A light-emitting lamp and an elliptical reflecting mirror; a light-emitting portion of the light-emitting lamp is positioned at a first focal point of the elliptical reflecting mirror; A light beam heating device for heating, wherein a reflection surface of an elliptical reflecting mirror is formed of a plating layer of a metal material that selectively reflects light energy having a wavelength suitable for a heating target.
を配置し、この光ファイバの他端にコーン状反射鏡と集
光用レンズを配置し、コーン状反射鏡の反射面を、加熱
対象に適応した波長の光エネルギーを選択的に反射する
金属材料のメッキ層にて構成したことを特徴とする請求
項１記載の光ビーム加熱装置。2. One end of an optical fiber is arranged at a second focal point of an elliptical reflecting mirror, and a cone-shaped reflecting mirror and a condenser lens are arranged at the other end of the optical fiber. 2. The light beam heating device according to claim 1, wherein the light beam heating device is constituted by a plating layer of a metal material that selectively reflects light energy having a wavelength suitable for a heating object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340878A JP2839037B2 (en) | 1990-11-30 | 1990-11-30 | Light beam heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340878A JP2839037B2 (en) | 1990-11-30 | 1990-11-30 | Light beam heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04210885A JPH04210885A (en) | 1992-07-31 |
| JP2839037B2 true JP2839037B2 (en) | 1998-12-16 |
Family
ID=18341144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2340878A Expired - Fee Related JP2839037B2 (en) | 1990-11-30 | 1990-11-30 | Light beam heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2839037B2 (en) |
-
1990
- 1990-11-30 JP JP2340878A patent/JP2839037B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04210885A (en) | 1992-07-31 |
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