JP2006350239A - Line light guide and manufacturing method therefor - Google Patents

Line light guide and manufacturing method therefor Download PDF

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JP2006350239A
JP2006350239A JP2005179743A JP2005179743A JP2006350239A JP 2006350239 A JP2006350239 A JP 2006350239A JP 2005179743 A JP2005179743 A JP 2005179743A JP 2005179743 A JP2005179743 A JP 2005179743A JP 2006350239 A JP2006350239 A JP 2006350239A
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light
line
light guide
fiber bundle
areas
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Kenji Umetsu
津 堅 治 梅
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Moritex Corp
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Moritex Corp
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Priority to JP2005179743A priority Critical patent/JP2006350239A/en
Priority to TW095120160A priority patent/TW200704987A/en
Priority to KR1020060051447A priority patent/KR20060133455A/en
Priority to CNA2006100946470A priority patent/CN1885073A/en
Publication of JP2006350239A publication Critical patent/JP2006350239A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To radiate bright light in uniform brightness, even if the irradiating area range becomes wide. <P>SOLUTION: The output ends (3out) of the fiber bundles (3A-3G) for guiding the light emitted from multiple light sources (2A to 2G) are arrange linearly at the light output (4). The light output (4) is divided into output areas (A<SB>1</SB>-A<SB>5</SB>), as many as are required. At the output ends of the fiber bundles (3A-3G), the optical fibers (6A-6G) constituting the fiber bundles (3A-3G) are sleaved and distributed to the output areas (A<SB>1</SB>-A<SB>5</SB>), as many as are required in the number matching the output areas (A<SB>1</SB>-A<SB>5</SB>). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、各光源から照射された光を案内する夫々のファイババンドルの光出射端がライン状の光出射部に配列されたラインライトガイド及びその製造方法に関する。   The present invention relates to a line light guide in which light emitting ends of respective fiber bundles for guiding light emitted from each light source are arranged in a line-shaped light emitting portion, and a method for manufacturing the same.

ラインライトガイドは、光をライン状に照射させるもので、各種製品の製造ラインにおける検査工程の検査用光源として使用されている。   The line light guide irradiates light in a line shape, and is used as an inspection light source in an inspection process in a production line of various products.

小型製品の検査に使用されるラインライトガイドは、光出射端をライン状に配列した一本のファイババンドルで形成され、光入射端から入射された光をライン状に照射するようになっている。
特開２００２−２８８６４４ A line light guide used for inspection of a small product is formed of a single fiber bundle in which light emitting ends are arranged in a line shape, and irradiates light incident from the light incident end in a line shape. .
JP 2002-288644 A

一方、検査部位の幅がある程度広くなると、一つの光源から照射された光だけでは全体が暗くなるため、図３及び図４に示すように、ラインライトガイド２０を複数連結して使用している。
すなわち、各光ファイバ２１の光出射端２１outをライン状に配列したファイババンドル２２を所要本数用いて、その光出射端２１outをライン状に連結して光出射部２３を形成し、夫々のファイババンドル２２…の光入射端２４…に光源２５…を配して、光出射部２３からライン状の光を照射するようになっている。 On the other hand, if the width of the examination region is increased to some extent, the whole is darkened only by the light emitted from one light source. Therefore, as shown in FIGS. 3 and 4, a plurality of line light guides 20 are connected and used. .
That is, by using the required number of fiber bundles 22 in which the light emission ends 21out of each optical fiber 21 are arranged in a line, the light emission ends 21out are connected in a line to form the light emission portion 23, and each fiber bundle is formed. Light sources 25 are disposed at the light incident ends 24 of the light beams 22 so that line-shaped light is emitted from the light emitting section 23.

このようにすれば、全体を明るく照らすことができるが、その一方で、夫々の光源に用いるランプ等に照度のバラツキがあると、夫々のラインライトガイド２０から照射される光に明暗が生じ、検査精度を低下させるという問題を生じた。   In this way, the whole can be illuminated brightly, but on the other hand, if there is a variation in illuminance among the lamps used for each light source, the light emitted from each line light guide 20 is light and dark, The problem of reducing the inspection accuracy occurred.

そこで本発明は、検査部位の幅が広くなっても、全体が明るく且つ均一な照度で光を照射できるようにすることを技術的課題としている。   In view of this, the present invention has a technical problem of enabling light to be irradiated with a uniform and uniform illuminance even when the width of an examination region is widened.

この課題を解決するために、本発明に係るラインライトガイドは、各光源から照射された光を案内する夫々のファイババンドルの光出射端がライン状の光出射部に配列されて成り、前記光出射部が所要数の出射エリアに分割されると共に、夫々のファイババンドルの出射端側で、前記ファイババンドルを構成する光ファイバが前記出射エリアの数に応じて所要本ずつ各出射エリアに分配されたことを特徴としている。   In order to solve this problem, the line light guide according to the present invention comprises light emitting ends of respective fiber bundles that guide the light emitted from each light source arranged in a line-shaped light emitting portion, and the light The exit section is divided into the required number of exit areas, and the optical fibers constituting the fiber bundle are distributed to each exit area according to the number of exit areas on the exit end side of each fiber bundle. It is characterized by that.

また、本発明に係るラインライトガイドの製造方法は、光出射部を予め所要数の出射エリアに分割しておき、夫々のファイババンドルの出射端側で、前記ファイババンドルを構成する光ファイバを前記出射エリアの数に応じて所要本ずつ各出射エリアに分配し、光出射部に固定することを特徴としている。   Further, in the method for manufacturing a line light guide according to the present invention, the light emitting portion is divided into a required number of emitting areas in advance, and the optical fibers constituting the fiber bundle are arranged on the emitting end side of each fiber bundle. According to the number of the emission areas, the required number is distributed to each emission area and fixed to the light emission part.

本発明のラインライトガイドによれば、ライン状に形成された光出射部が所要数の出射エリアに分割されており、複数の光源から照射された光を案内するバンドルファイバから分岐された分岐ファイバが、夫々の出射エリアに分配されているので、個々の出射エリアに全ての光源からの光が供給されて夫々の出射エリアから照射されるので、光源に明暗の差があっても、明るい部分、暗い部分が分散されるので、光出射部全体から明るさの均一な光を照射することができる。   According to the line light guide of the present invention, the light emitting portion formed in a line shape is divided into a required number of emitting areas, and is branched from a bundle fiber that guides light emitted from a plurality of light sources. However, since light from all light sources is supplied to each emission area and emitted from each emission area, even if there is a difference in light and dark, the bright part Since the dark part is dispersed, light with uniform brightness can be irradiated from the entire light emitting part.

本例では、検査部位の幅が広くなっても、全体が明るく且つ均一な照度で光を照射できるようにするという課題を達成するため、ライン状に形成された光出射部を所要数の出射エリアに分割し、夫々のファイババンドルを構成する光ファイバを各出射エリアに分配することにより実現した。   In this example, even if the width of the examination region is widened, the light emission part formed in a line shape has the required number of emission parts in order to achieve the problem of being able to irradiate light with a uniform and even illuminance as a whole. This was realized by dividing the optical fiber constituting each fiber bundle into each exit area.

図１は本発明に係るラインライトガイドの一例を示す説明図、図２はその正面図である。   FIG. 1 is an explanatory view showing an example of a line light guide according to the present invention, and FIG. 2 is a front view thereof.

図１及び図２に示すラインライトガイド１は、各光源２Ａ〜２Ｇから照射された光を案内する夫々のファイババンドル３Ａ〜３Ｇの光出射端３outが、ライン状の光出射部４に配列されて形成されている。
光源２Ａ〜２Ｇとしては任意の発光源を使用することができるが、本例では、ハロゲンランプがファイババンドル３Ａ〜３Ｇの各光入射端３inに対向して配されている。 In the line light guide 1 shown in FIGS. 1 and 2, the light emitting ends 3out of the respective fiber bundles 3A to 3G that guide the light emitted from the light sources 2A to 2G are arranged in the line-shaped light emitting unit 4. Is formed.
Although any light source can be used as the light sources 2A to 2G, in this example, a halogen lamp is arranged to face each light incident end 3in of the fiber bundles 3A to 3G.

光出射部４は、樹脂製のライトガイド用アレイ５Ｕ及び５Ｌの合せ面に直線ライン状に形成され、所要数（例えば五つ）の出射エリアＡ１〜Ａ５に分割されている。
そして、夫々のファイババンドル３Ａ〜３Ｇを構成する光ファイバ６Ａ〜６Ｇが出射エリアＡ１〜Ａ５の数に応じて所要本ずつに束ねられて分岐され、各出射エリアＡ１〜Ａ５に分配されている。 Light emitting portion 4 is formed in a straight line shape in the mating surface of the resin of the light guide array 5U and 5L, which is divided into emission areas A 1 to A 5 a required number (e.g., five).
Then, the optical fiber 6A~6G constituting the fiber bundle 3A~3G each are branched are bundled by a required book in accordance with the number of exit area A 1 to A 5, distributed to the emerging area A 1 to A 5 Has been.

このとき、分配された光ファイバ６Ａ〜６Ｇの本数にかかわらず、その光ファイバ群を夫々の照射エリアＡ１〜Ａ５の一端側から他端側に向って順に配列させてもランダムに配列させてもよく、さらに、分配された光ファイバ６Ａ〜６Ｇが複数本ずつある場合に、夫々の光ファイバ６Ａ〜６Ｇを一本ずつバラしてランダムに配列させても良い。 At this time, regardless of the number of the distributed optical fibers 6A to 6G, even if the optical fiber group is arranged in order from one end side to the other end side of each irradiation area A 1 to A 5 , it is randomly arranged. Further, when there are a plurality of distributed optical fibers 6A to 6G, the optical fibers 6A to 6G may be separated and arranged randomly at a time.

以上が本発明の一例構成であって、次にその作用を説明する。
まず、ラインライトガイド１を製造する場合、ライトガイド用アレイ５Ｕ及び５Ｌに形成された光出射部４を予め同じ長さずつ、例えば五つの出射エリアＡ１〜Ａ５に等分割しておく。 The above is an example configuration of the present invention, and its operation will be described next.
First, when the line light guide 1 is manufactured, the light emitting portions 4 formed in the light guide arrays 5U and 5L are previously divided into equal parts, for example, into five emission areas A 1 to A 5 .

そして、複数の光源２Ａ〜２Ｇから照射された光を案内する夫々のファイババンドル３Ａ〜３Ｇの光出射端３out側で、ファイババンドル３Ａ〜３Ｇを構成する光ファイバ６Ａ〜６Ｇを出射エリアの数に応じて所要本ずつ束ねて分岐させる。
例えば、各ファイババンドル３Ａ〜３Ｇが夫々１００本の光ファイバ６Ａ〜６Ｇからなる場合に、出射エリアＡ１〜Ａ５が五つであるから、光ファイバ６Ａ〜６Ｇは２０本ずつ束ねられて分岐させる。 Then, the optical fibers 6A to 6G constituting the fiber bundles 3A to 3G are set to the number of exit areas on the light exit end 3out side of the respective fiber bundles 3A to 3G for guiding the light emitted from the plurality of light sources 2A to 2G. If necessary, bundle the required books and branch them.
For example, when each of the fiber bundles 3A to 3G is composed of 100 optical fibers 6A to 6G, since there are five exit areas A 1 to A 5 , 20 optical fibers 6A to 6G are bundled by 20 and branched. Let

そして、２０本ずつの各光ファイバ６Ａ〜６Ｇを各出射エリアＡ１〜Ａ５の一端側から他端側に向って順番に配列させ、全ての光ファイバ６Ａ〜６Ｇの分配作業が完了した後、ライトガイド用アレイ５Ｕ及び５Ｌと各光ファイバ６Ａ〜６Ｇを樹脂で固め、光出射部４（光出射端３out）を研磨し、最後にケーシング７を装着して完成する。 Then, after 20 optical fibers 6A to 6G are arranged in order from one end side to the other end side of each of the emission areas A 1 to A 5 , the distribution work of all the optical fibers 6A to 6G is completed. The light guide arrays 5U and 5L and the optical fibers 6A to 6G are hardened with resin, the light emitting portion 4 (light emitting end 3out) is polished, and finally the casing 7 is attached to complete.

このように製造されたラインライトガイド１の各光入射端３inに、ハロゲンランプなどの光源２Ａ〜２Ｇを対向させて配して、これを点灯させると、夫々の光はファイババンドル３Ａ〜３Ｇを構成する各光ファイバ６Ａ〜６Ｇを伝搬する。
光ファイバ６Ａ〜６Ｇはファイババンドル３Ａ〜３Ｇの光出射端３out側で、各出射エリアＡ１〜Ａ５に分配されているので、個々の出射エリアＡ１〜Ａ５には、全てのファイババンドル３Ａ〜３Ｇの光ファイバ６Ａ〜６Ｇが混在することとなる。
したがって、光源２Ａ〜２Ｇに明暗の差があっても、明るい部分、暗い部分が全体的に分散されることとなり、光出射部４全体から均一な明るさで光が照射される。 When light sources 2A to 2G such as halogen lamps are arranged facing each light incident end 3in of the line light guide 1 manufactured in this way and are turned on, the respective light bundles the fiber bundles 3A to 3G. It propagates through each optical fiber 6A-6G which comprises.
In the optical fiber 6A~6G light emitting end 3out side of the fiber bundle 3A-3G, because it is distributed to the emerging area A 1 to A 5, the individual emission areas A 1 to A 5, all the fiber bundle The 3A to 3G optical fibers 6A to 6G are mixed.
Therefore, even if there is a difference in brightness between the light sources 2A to 2G, the bright part and the dark part are dispersed as a whole, and light is emitted from the entire light emitting unit 4 with uniform brightness.

以上述べたように、本発明は、製品検査などにおいて、検査部位の幅が比較的広い部分に、均一な明るさでライン状のスポット光を照射する用途に適用することができる。   As described above, the present invention can be applied to an application of irradiating a line-shaped spot light with a uniform brightness to a portion having a relatively wide inspection site in a product inspection or the like.

本発明に係るラインライトガイドの一例を示す説明図。Explanatory drawing which shows an example of the line light guide which concerns on this invention. その正面図。The front view. 従来装置を示す説明図。Explanatory drawing which shows a conventional apparatus. その正面図。The front view.

符号の説明Explanation of symbols

１ ラインライトガイド
２Ａ〜２Ｇ 光源
３Ａ〜３Ｇ ファイババンドル
３out 光出射端
３in 光入射端
４ 光出射部
６Ａ〜６Ｇ 光ファイバ
Ａ１〜Ａ５ 出射エリア


1 Line light guide
2A~2G source 3A~3G fiber bundle 3out 4 light emitting portion light emitting end 3in light incident end 6A~6G optical fiber A 1 to A 5 exit area


Claims (3)

各光源から照射された光を案内する夫々のファイババンドルの光出射端がライン状の光出射部に配列されたラインライトガイドであって、
前記光出射部が所要数の出射エリアに分割されると共に、夫々のファイババンドルの出射端側で、前記ファイババンドルを構成する光ファイバが前記出射エリアの数に応じて所要本ずつ各出射エリアに分配されたことを特徴とするラインライトガイド。 A light output end of each fiber bundle that guides light emitted from each light source is a line light guide arranged in a line-shaped light output part,
The light exit section is divided into a required number of exit areas, and on the exit end side of each fiber bundle, the optical fibers constituting the fiber bundle are provided in each exit area according to the number of exit areas. Line light guide characterized by being distributed. 前記光出射部が、直線、曲線あるいは輪郭線からなるライン状に形成された請求項１記載のラインライトガイド。   The line light guide according to claim 1, wherein the light emitting portion is formed in a line shape including a straight line, a curve, or a contour line. 各光源から照射された光を案内する夫々のファイババンドルの光出射端がライン状の光出射部に配列されたラインライトガイドの製造方法であって、
前記光出射部を予め所要数の出射エリアに分割しておき、夫々のファイババンドルの出射端側で、前記ファイババンドルを構成する光ファイバを前記出射エリアの数に応じて所要本ずつ各出射エリアに分配し、光出射部に固定することを特徴とするラインライトガイドの製造方法。


A light output end of each fiber bundle that guides light emitted from each light source is a method for manufacturing a line light guide in which light output portions arranged in a line shape are arranged,
The light emitting section is divided in advance into a required number of emitting areas, and the optical fibers constituting the fiber bundle are arranged on the emitting end side of each fiber bundle according to the number of the emitting areas. A method for manufacturing a line light guide, characterized in that the line light guide is distributed and fixed to the light emitting portion.


JP2005179743A 2005-06-20 2005-06-20 Line light guide and manufacturing method therefor Pending JP2006350239A (en)

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JP2005179743A JP2006350239A (en) 2005-06-20 2005-06-20 Line light guide and manufacturing method therefor
TW095120160A TW200704987A (en) 2005-06-20 2006-06-07 Linear light guide and manufacturing method thereof
KR1020060051447A KR20060133455A (en) 2005-06-20 2006-06-08 Line light guide and manufacturing method thereof
CNA2006100946470A CN1885073A (en) 2005-06-20 2006-06-20 Linear light guide and method for producing same

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TWI471506B (en) * 2012-02-06 2015-02-01 All Real Technology Co Ltd Light outputting apparatus

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JP2004102189A (en) * 2002-09-13 2004-04-02 Mitsubishi Cable Ind Ltd Method for manufacturing optical fiber flux

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JPH11223733A (en) * 1998-02-06 1999-08-17 Oki Electric Ind Co Ltd Method for forming optical wiring
JP2004102189A (en) * 2002-09-13 2004-04-02 Mitsubishi Cable Ind Ltd Method for manufacturing optical fiber flux

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