JPS6391538A - Illumination apparatus - Google Patents
Illumination apparatusInfo
- Publication number
- JPS6391538A JPS6391538A JP23870086A JP23870086A JPS6391538A JP S6391538 A JPS6391538 A JP S6391538A JP 23870086 A JP23870086 A JP 23870086A JP 23870086 A JP23870086 A JP 23870086A JP S6391538 A JPS6391538 A JP S6391538A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- optical fiber
- mirror
- fiber bundle
- 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
- 238000005286 illumination Methods 0.000 title claims description 22
- 239000013307 optical fiber Substances 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 150000002736 metal compounds Chemical class 0.000 abstract description 2
- 238000007740 vapor deposition Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 12
- 238000011179 visual inspection Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000011027 product recovery Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、とくに医薬品（錠剤、カプセル等）、食品
、機械部品、電子部品等の外観を検査するための外観検
査装置に適用する照明装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lighting device particularly applicable to an appearance inspection device for inspecting the appearance of pharmaceuticals (tablets, capsules, etc.), foods, mechanical parts, electronic parts, etc. It is related to.
第５図は錠剤外観検査装置を示す説明図であり、この検
査装置は錠剤である被検査物ｍの水平搬送方向に沿って
ホッパ４０．バイブレータ４１を存するフィーダ４２、
振動トラフ４３、錠剤整流装置４４、ベルトコンベア４
５、第１の搬送装置Ｘ１、第２の搬送装置Ｘ２および錠
剤選別機構４６がこの順に配列されて構成される。錠剤
選別機構４６の下方には良品回収ダクト４７と不良品回
収用ダクト４８とが設けられる。FIG. 5 is an explanatory diagram showing a tablet appearance inspection device, and this inspection device moves the inspection object m, which is a tablet, through a hopper 40. a feeder 42 containing a vibrator 41;
Vibrating trough 43, tablet straightening device 44, belt conveyor 4
5. The first transport device X1, the second transport device X2, and the tablet sorting mechanism 46 are arranged in this order. Below the tablet sorting mechanism 46, a non-defective product recovery duct 47 and a defective product recovery duct 48 are provided.
前記搬送装置Ｘ１．Ｘ２はバキュームコンベアで被検査
物ｍをそのコンベア上に吸着した状態で搬送する。そし
て、搬送過程において、外観検査装置Ｔ、−Ｔ、で被検
査物ｍの外観の欠損の有無を検出し、これに基づいて錠
剤選別機構４６で被検査物ｍの振り分けが行われる。か
かる外観検査装置Ｔ、〜Ｔ６では、被検査物ｍを盪像す
るイメージセンサ（ラインセンサカメラ）と被検査物ｍ
を照明する照明装置とが設けられ、搬送される被検査物
ｍを均質に照明しながらイメージセンサで被検査物ｍの
外観の欠損を検出する。Said transport device X1. X2 is a vacuum conveyor that conveys the object to be inspected m while being attracted to the conveyor. During the transportation process, the appearance inspection devices T and -T detect the presence or absence of defects in the appearance of the objects m to be inspected, and based on this, the objects m to be inspected are sorted by the tablet sorting mechanism 46. These visual inspection devices T, to T6 include an image sensor (line sensor camera) that images the inspected object m, and an image sensor (line sensor camera) that images the inspected object m.
A lighting device is provided to uniformly illuminate the transported object to be inspected m, and an image sensor detects defects in the appearance of the object to be inspected m.
この場合、照明装置としては、■光源からの光で直接被
検査物ｍを照明する装置、■被検査物ｍの検査面より均
質な反射光を得るために光源からの光をドーム内で反射
分散させて間接照明する装置、■光ファイバ束を多数分
岐させて光源の光を多方向に分けて任意の角度から照明
し均質な照明が得られるようにした装置等がある。In this case, the illumination device is: (1) a device that directly illuminates the object m to be inspected with light from the light source, (2) a device that reflects the light from the light source within the dome to obtain more homogeneous reflected light from the inspection surface of the object m to be inspected. There are devices that provide indirect illumination by dispersion, and (2) devices that split the light from a light source into multiple directions by branching into multiple optical fiber bundles to illuminate from any angle to provide homogeneous illumination.
搬送装置Ｘ１．Ｘ２によって高速度で搬送される被検査
物ｍをイメージセンサを用いて高精度な外観検査を行う
ためには、高精度でしかも被検査物ｍの表面形状に応じ
た均質照明可能な照明装置が必要となる。とくに、ライ
ンセンサカメラを用いて高速外観検査を行う場合、走査
周期が短くなり、検査上充分なゲインを得るためには、
高輝度でかつ均質な照明が必要となる。Conveying device X1. In order to use an image sensor to conduct a highly accurate visual inspection of the inspected object m being conveyed at high speed by the It becomes necessary. In particular, when performing high-speed visual inspection using a line sensor camera, the scanning period becomes short, and in order to obtain sufficient gain for inspection,
High brightness and uniform illumination is required.
しかしながら、被検査物ｍを光源からの光で直接照明す
る従来の装置では、直接光による被検査物ｍの表面の明
度差が大きく均質照明が困難であり、また均質化のため
には多数の光源を必要とするため、経済上の問題があっ
た。However, with conventional devices that directly illuminate the object m to be inspected with light from a light source, there is a large difference in brightness on the surface of the object m due to the direct light, making it difficult to achieve uniform illumination. There was an economic problem because it required a light source.
また、間接照明による他の照明装置では、均質照明効果
が得られるものの、被検査物ｍの表面が低輝度であるた
め検査に必要な高い光量が得られないため、高速外観検
査ができないという問題があった。。In addition, other lighting devices that use indirect lighting can achieve a homogeneous lighting effect, but because the surface of the object to be inspected m has low luminance, it is not possible to obtain the high amount of light necessary for inspection, which makes high-speed visual inspection impossible. was there. .
これに対して、光ファイバ束を用いた、いわゆるマルチ
ファイバ照明によるときは、被検査物ｍの表面形状に応
じて多方向から均質な照明を行うことができる。ところ
が、被検査物ｍを高輝度で照明するために高輝度ランプ
を長時間にわたって使用すると、光ファイバ束の受光部
端面が加熱され破損されるという問題があった。On the other hand, when using so-called multi-fiber illumination using an optical fiber bundle, uniform illumination can be performed from multiple directions depending on the surface shape of the object m to be inspected. However, when a high-intensity lamp is used for a long period of time to illuminate the object m to be inspected with high brightness, there is a problem in that the end face of the light-receiving part of the optical fiber bundle is heated and damaged.
すなわち、光ファイバ束を用いた従来の照明装置では、
高輝度ランプの光を直接光ファイバ束の受光部端面に入
射させていたため、受光部端面に熱の蓄積が起こり、こ
れが光ファイバ束に焼損等の悪影響を与えていた。と（
に、光ファイバ束として一般に用いられるプラスチフ゛
クフ１イバは耐熱性に劣るため、高温状態での使用は不
可能であり、このためランプ出力が５０〜７５Ｗ程度の
ランプを使用するのが一般的であった。In other words, in a conventional lighting device using an optical fiber bundle,
Since the light from the high-intensity lamp was directly incident on the end face of the light receiving part of the optical fiber bundle, heat was accumulated on the end face of the light receiving part, which had an adverse effect on the optical fiber bundle, such as burning out. and(
Furthermore, the plastic fibers commonly used as optical fiber bundles have poor heat resistance and cannot be used at high temperatures.For this reason, it is common to use lamps with a lamp output of about 50 to 75 W. Ta.
したがって、この発明の目的は、光ファイバ束を用いて
被検査物等を照明するにあたり光源として高輝度ランプ
を用いて貰輝度下でかつ長時間にわたって照明すること
ができる照明装置を提供することである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an illumination device that can illuminate an object to be inspected using an optical fiber bundle using a high-intensity lamp as a light source at low brightness for a long period of time. be.
この発明の照明装置は、光源と、この光源の前面に配置
され光源からでた光を熱線と可視光とに分離する選択透
過ミラーと、この選択透過ミラーで分離した前記可視光
を受ける受光部を一端に有し他端に照明用の投光部を有
する光ファイバ束と、この光ファイバ束の受光部、前記
選択透過ミラーおよび光源を空冷する冷却用ファンとを
備えたものである。The illumination device of the present invention includes a light source, a selective transmission mirror arranged in front of the light source that separates the light emitted from the light source into heat rays and visible light, and a light receiving section that receives the visible light separated by the selective transmission mirror. The device includes an optical fiber bundle having one end thereof and a light projecting section for illumination at the other end, a light receiving section of the optical fiber bundle, a cooling fan that air-cools the selective transmission mirror and the light source.
この発明によれば、光源の光は選択透過ミラーで熱＆ｉ
ｌ （赤外線）と可視光とに分離されるので、分離され
た可視光のみを光ファイバ束の受光部で受けることによ
り、受光部が光源からでる熱線で加熱され焼損するおそ
れがなくなる。その結果、光源として、高出力の高輝度
ランプの使用が可能となり、高輝度で被検査物等を照明
することができ、また連続照明も可能になる。According to this invention, the light from the light source is transmitted through a selectively transmitting mirror.
Since the light is separated into infrared light and visible light, only the separated visible light is received by the light receiving section of the optical fiber bundle, eliminating the risk of the light receiving section being heated and burned out by the hot rays emitted from the light source. As a result, it is possible to use a high-output, high-intensity lamp as a light source, and the object to be inspected can be illuminated with high brightness, and continuous illumination is also possible.
また、光ファイバ束の受光部１選択透過ミラーおよび光
源を含む領域が冷却用ファンによって空冷されるので、
光ファイバ束の受光部端面の温度上昇を防ぎ、装置内の
熱の蓄積が確実に防止される。加えて、選択透過ミラー
や光源、場合によっては光ファイバ束の受光部端面にｍ
埃が堆積するのがファンによって防止されるため、高輝
度照明を長時間にわたって確実に維持することができる
。In addition, since the area including the selective transmission mirror of the light receiving part 1 of the optical fiber bundle and the light source is air-cooled by the cooling fan,
This prevents a rise in temperature at the end face of the light receiving part of the optical fiber bundle, and reliably prevents heat from accumulating within the device. In addition, a selective transmission mirror, a light source, and in some cases, a m
Since the fan prevents dust from accumulating, high-intensity illumination can be maintained reliably for a long time.
この発明の一実施例を第１図〜第４図に基づいて説明す
る。すなわち、この実施例の照明装置は錠剤等の外Ｖ＆
検査装置に適用されたものであって、第１図に示すよう
に、光源１の前面に選択透過ミラー２を配置し、この選
択透過ミラー２で前記光源１から入射した光のうち熱線
は選択透過ミラー２を透過させ（透過した熱線を矢印Ａ
で示す）、可視光は選択透過ミラー２で反射させて（反
射した可視光を矢印Ｂで示す）熱線と可視光とを分離す
るとともに、分離した可視光を光ファイバ束３の受光部
４で受け、他端の分岐した複数の投光部５・・・で被検
査物ｍを多方向から照明し、さらに前記光ファイバ束３
の受光部４、選択透過ミラー２および光ｔＡ１を冷却用
ファン１０で空冷するようにしたものである。An embodiment of the present invention will be described based on FIGS. 1 to 4. That is, the illumination device of this embodiment can be used for tablets, etc.
This is applied to an inspection device, and as shown in FIG. 1, a selectively transmitting mirror 2 is placed in front of a light source 1, and the selectively transmitting mirror 2 selects heat rays from the light incident from the light source 1. Pass through the transmission mirror 2 (the transmitted heat rays are indicated by arrow A)
), the visible light is reflected by the selective transmission mirror 2 (reflected visible light is shown by arrow B) and separated into heat rays and visible light, and the separated visible light is transmitted to the light receiving part 4 of the optical fiber bundle 3. The object m to be inspected is illuminated from multiple directions by a plurality of light emitting sections 5 branched at the other end, and the optical fiber bundle 3
The light receiving section 4, the selective transmission mirror 2, and the light tA1 are air-cooled by a cooling fan 10.
前記光源１としては、選択透過ミラー２の採用により出
力の高い高輝度ランプが使用可能になり、このため被検
査物ｍを高速外観検査するのに充分な光量を得ることが
できる。As the light source 1, a high-output, high-intensity lamp can be used by employing the selective transmission mirror 2, and therefore a sufficient amount of light can be obtained for high-speed visual inspection of the object m to be inspected.
前記選択透過ミラー２は、たとえば透明なガラス反射板
の表面に、屈折率の異なる金属化合物（たとえば酸化チ
タン等の金属酸化物等）を多層に真空１着するなどして
形成されたものであって、この実施例では光源１からで
た光のうち可視光を入射光に対して直角に反射させ、光
ファイバ束３の受光部４に集光させる。一方、熱線はそ
の殆どが熱線透過ミラー２を透過するため、高出力の高
輝度ランプを使用することによる受光部４での熱の蓄積
が低減され、受光部４が熱により焼損するのを防ぐこと
ができる。The selective transmission mirror 2 is formed, for example, by vacuum-depositing multiple layers of metal compounds with different refractive indexes (for example, metal oxides such as titanium oxide) on the surface of a transparent glass reflection plate. In this embodiment, visible light out of the light emitted from the light source 1 is reflected at right angles to the incident light and focused on the light receiving section 4 of the optical fiber bundle 3. On the other hand, since most of the heat rays pass through the heat ray transmitting mirror 2, the accumulation of heat in the light receiving section 4 due to the use of a high-output, high-intensity lamp is reduced, and the light receiving section 4 is prevented from being burnt out due to heat. be able to.
第２図はこの実施例における照明装置の要部を示す概略
破断斜視図であり、第３図は扉（図示せず）を取り外し
た状態での正面図、第４図はその側断面図である。第２
図に示すように、光源１は箱形のケージジグ１１内でラ
ンプ支持台１２によって上向きに支持され、その上方に
は選択透過ミラー２が保持具１３によって設置される。Fig. 2 is a schematic cutaway perspective view showing the main parts of the lighting device in this embodiment, Fig. 3 is a front view with the door (not shown) removed, and Fig. 4 is a side sectional view thereof. be. Second
As shown in the figure, a light source 1 is supported upward by a lamp support 12 within a box-shaped cage jig 11, and a selective transmission mirror 2 is installed above it by a holder 13.
また、ケーシング１１の側板には光ファイバ束３が、背
板にはファン１０がそれぞれ取付けられる。選択透過ミ
ラー２は第３図に示すように光源１からの光の入射角が
４５°となるように傾斜姿勢で取付けられている。そし
て、光源１から選択透過ミラー２に入射し反射した可視
光が当たるケーシング１１の内面には光ファイバ束３の
受光部４が位置している。前記ケーシング１１は熱の放
散を促すために多数の穴あけ加工を施したものが使用さ
れる。Further, an optical fiber bundle 3 is attached to the side plate of the casing 11, and a fan 10 is attached to the back plate. As shown in FIG. 3, the selective transmission mirror 2 is installed in an inclined position so that the incident angle of light from the light source 1 is 45°. A light-receiving section 4 of the optical fiber bundle 3 is located on the inner surface of the casing 11, where the visible light incident on the selective transmission mirror 2 and reflected from the light source 1 hits. The casing 11 used has a large number of holes drilled in it to promote heat dissipation.
前記ファン１０はその空冷領域内に前記光源１の側面、
選択透過ミラー２および光ファイバ束３の受光部４の端
面があるように配置されている。The fan 10 has a side surface of the light source 1 in its air cooling area,
The selective transmission mirror 2 and the end face of the light receiving section 4 of the optical fiber bundle 3 are disposed.
このため、ケーシング１１内の熱の蓄積が防止され、受
光部４の端面が高温になって焼損するのを防ぎ、かつ選
択透過ミラー２を空冷し、さらに光源として用いた高輝
度ランプの劣化を低減させる。This prevents heat from accumulating within the casing 11, prevents the end face of the light receiving section 4 from becoming hot and burning out, and also air-cools the selective transmission mirror 2, and further prevents deterioration of the high-intensity lamp used as a light source. reduce
これによりケーシング１１内の雰囲気温度を一定に保つ
ことができる。ちなみに、プラスチフ゛クファイバを用
いた光ファイバ束で直接光源から光を受けていた場合は
光源のランプ出力は５０〜７５Ｗ程度のものしか使用で
きなかったのに対して、この実施例の照明装置では光源
１のランプ出力を１５０Ｗまで上げることができ、しか
も２４時間の連続運転が可能であった。まｈ・、ファン
１０によって、選択透過ミラー２や光ａ１、場合によっ
ては光ファイバ束３の受光部４端面に塵埃が堆積するの
が防止され、高輝度照明を長時間にわたって確実に維持
することができる。Thereby, the atmospheric temperature within the casing 11 can be kept constant. By the way, if an optical fiber bundle using plastic fibers were to receive light directly from a light source, the lamp output of the light source could only be about 50 to 75 W, but with the lighting device of this example, The lamp output of light source 1 could be increased to 150 W, and continuous operation for 24 hours was possible. Mah. The fan 10 prevents dust from accumulating on the selective transmission mirror 2, the light a1, and in some cases on the end face of the light receiving part 4 of the optical fiber bundle 3, thereby reliably maintaining high-intensity illumination for a long time. Can be done.
光ファイバ束３は、反射した可視光を減衰させることな
く高輝度な状態で被検査物ｍの表面に導くためのもので
あって、多数本の光ファイバを束ねて構成される。光フ
ァイバ束３の分岐した複数の投光部５・・・は光ファイ
バ束３が可撓性を有するために自由な立体配置が可能で
あり、被検査物ｍを多方向から照明することができる。The optical fiber bundle 3 is for guiding the reflected visible light to the surface of the object m to be inspected in a high brightness state without attenuating it, and is constructed by bundling a large number of optical fibers. Since the optical fiber bundle 3 has flexibility, the plurality of light emitting parts 5 branched from the optical fiber bundle 3 can be freely arranged three-dimensionally, and the object to be inspected m can be illuminated from multiple directions. can.
また、かかる投光部５・・・と被検査物ｍとの間には、
被検査物ｍを覆うようにドーム状になった拡散透光性部
材６が介在する。この拡散透光性部材６は通常のタイプ
用紙や透光性プラスチックシートやフィルムなどから構
成、され、光ファイバ束３の投光部５・・・からでた可
視光を拡散させ、被検査物ｍの照明をより均質化させる
ものである。この場合、前記投光部５・・・は拡散透光
性部材６の外側近傍にあるのが好ましい。また、拡散透
光性部材６の頂部にはのぞき窓となる孔７が形成され、
底部には被検査物ｍの通過口８が設けられる。孔７の上
方にはイメージセンサ９が配置され、孔７を経て被検査
物ｍを撮像する。Moreover, between the light projecting unit 5... and the object to be inspected m,
A dome-shaped diffused light-transmitting member 6 is interposed so as to cover the inspection object m. This diffused translucent member 6 is made of ordinary type paper, translucent plastic sheet, film, etc., and diffuses the visible light emitted from the light emitting part 5 of the optical fiber bundle 3, This makes the illumination of m more uniform. In this case, it is preferable that the light projecting section 5 is located near the outside of the diffused light-transmitting member 6. Further, a hole 7 serving as a peephole is formed at the top of the diffused translucent member 6,
A passage port 8 for the object to be inspected m is provided at the bottom. An image sensor 9 is arranged above the hole 7 and images the object m to be inspected through the hole 7.
なお、この実施例では熱線を透過し可視光を反射する選
択透過ミラー２を用いたが、可視光を透過して熱線を反
射する選択透過ミラーを用いてもよいことは勿論である
。In this embodiment, a selective transmission mirror 2 that transmits heat rays and reflects visible light is used, but it goes without saying that a selective transmission mirror that transmits visible light and reflects heat rays may be used.
また、光ファイバ束３の投光部は分岐しないものであっ
てもよい。さらに、この発明の照明装置は検査用のみな
らず通常の照明等にも適用可能であることはいうまでも
ない。Further, the light projecting portion of the optical fiber bundle 3 may not be branched. Furthermore, it goes without saying that the illumination device of the present invention can be applied not only to inspection purposes but also to ordinary illumination and the like.
この発明によれば、光源の光は選択透過ミラーで熱線（
赤外線）と可視光とに分離されるので、分離された可視
光のみを光ファイバ束の受光部で受けることにより、受
光部が光源からでる熱線で加熱され焼損するおそれがな
くなる。その結果、光源として、高出力の高輝度ランプ
の使用が可能となり、高輝度で被検査物等を照明するこ
とができ、また連続照明も可能になる。According to this invention, the light from the light source is passed through a selectively transmitting mirror through a heat ray (
Since the visible light is separated into (infrared rays) and visible light, only the separated visible light is received by the light receiving section of the optical fiber bundle, thereby eliminating the risk of the light receiving section being heated and burned out by the hot rays emitted from the light source. As a result, it is possible to use a high-output, high-intensity lamp as a light source, and the object to be inspected can be illuminated with high brightness, and continuous illumination is also possible.
また、光ファイバ束の受光部１選択透過ミラーおよび光
源を含む領域が冷却用ファンによって空冷されるので、
光ファイバ束の受光部端面の温度上昇を防ぎ、装置内の
熱の蓄積が確実に防止される。加えて、選択透過ミラー
や光源、場合によっては光ファイバ束の受光部端面に塵
埃が堆積するのがファンによって防止されるため、高輝
度照明を長時間にわたって確実に維持することができる
。In addition, since the area including the selective transmission mirror of the light receiving part 1 of the optical fiber bundle and the light source is air-cooled by the cooling fan,
This prevents a rise in temperature at the end face of the light receiving part of the optical fiber bundle, and reliably prevents heat from accumulating within the device. In addition, since the fan prevents dust from accumulating on the selective transmission mirror, the light source, and in some cases on the end face of the light receiving section of the optical fiber bundle, high-intensity illumination can be reliably maintained for a long period of time.
第１図はこの発明の一実施例の説明図、第２図はその要
部を示す概略破断斜視図、第３図はその正面図、第４図
は側断面閲、第５図は錠剤の外観検査装置を示す説明図
である。Fig. 1 is an explanatory diagram of one embodiment of the present invention, Fig. 2 is a schematic cutaway perspective view showing the main parts, Fig. 3 is a front view thereof, Fig. 4 is a side sectional view, and Fig. 5 is a diagram of a tablet. It is an explanatory view showing an appearance inspection device.
Claims (2)
光を熱線と可視光とに分離する選択透過ミラーと、この
選択透過ミラーで分離した前記可視光を受ける受光部を
一端に有し他端に照明用の投光部を有する光ファイバ束
と、この光ファイバ束の受光部、前記選択透過ミラーお
よび光源を空冷する冷却用ファンとを備えた照明装置。(1) A light source, a selective transmission mirror placed in front of the light source that separates the light emitted from the light source into heat rays and visible light, and a light receiving section that receives the visible light separated by the selective transmission mirror at one end. An illumination device comprising: an optical fiber bundle having a light projection part for illumination at the other end; a light receiving part of the optical fiber bundle; a cooling fan that air-cools the selective transmission mirror and the light source.
出た可視光が前記選択透過ミラーを経て前記受光部にい
たる面に対して直交する方向となるように配置された特
許請求の範囲第（１）項記載の照明装置。(2) The cooling fan is arranged so that its blowing direction is perpendicular to a plane in which visible light emitted from the light source passes through the selective transmission mirror and reaches the light receiving section. The lighting device described in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23870086A JPS6391538A (en) | 1986-10-06 | 1986-10-06 | Illumination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23870086A JPS6391538A (en) | 1986-10-06 | 1986-10-06 | Illumination apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391538A true JPS6391538A (en) | 1988-04-22 |
Family
ID=17033990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23870086A Pending JPS6391538A (en) | 1986-10-06 | 1986-10-06 | Illumination apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391538A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245644A (en) * | 1989-03-17 | 1990-10-01 | Kao Corp | Foreign matter detector |
| JPH04134056U (en) * | 1991-05-30 | 1992-12-14 | 日本たばこ産業株式会社 | Portable infrared moisture measuring device |
| KR100482952B1 (en) * | 1998-07-29 | 2005-07-28 | 삼성전자주식회사 | Optical Characteristic Measuring Device for Reflective Liquid Crystal Display Device |
| JP2007033273A (en) * | 2005-07-27 | 2007-02-08 | Mayekawa Mfg Co Ltd | Apparatus for detecting foreign substance of white food |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59119246A (en) * | 1982-12-24 | 1984-07-10 | Matsushita Electric Works Ltd | Lighting device for body to be inspected |
| JPS6019954B2 (en) * | 1974-07-01 | 1985-05-18 | モービル・オイル・コーポレーシヨン | Lubricating grease manufacturing method |
-
1986
- 1986-10-06 JP JP23870086A patent/JPS6391538A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019954B2 (en) * | 1974-07-01 | 1985-05-18 | モービル・オイル・コーポレーシヨン | Lubricating grease manufacturing method |
| JPS59119246A (en) * | 1982-12-24 | 1984-07-10 | Matsushita Electric Works Ltd | Lighting device for body to be inspected |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245644A (en) * | 1989-03-17 | 1990-10-01 | Kao Corp | Foreign matter detector |
| JPH04134056U (en) * | 1991-05-30 | 1992-12-14 | 日本たばこ産業株式会社 | Portable infrared moisture measuring device |
| KR100482952B1 (en) * | 1998-07-29 | 2005-07-28 | 삼성전자주식회사 | Optical Characteristic Measuring Device for Reflective Liquid Crystal Display Device |
| JP2007033273A (en) * | 2005-07-27 | 2007-02-08 | Mayekawa Mfg Co Ltd | Apparatus for detecting foreign substance of white food |
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