JPS5861408A - Transmission type optical coupler - Google Patents
Transmission type optical couplerInfo
- Publication number
- JPS5861408A JPS5861408A JP16059481A JP16059481A JPS5861408A JP S5861408 A JPS5861408 A JP S5861408A JP 16059481 A JP16059481 A JP 16059481A JP 16059481 A JP16059481 A JP 16059481A JP S5861408 A JPS5861408 A JP S5861408A
- Authority
- JP
- Japan
- Prior art keywords
- light
- photoconductors
- transmission type
- passes
- type optical
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 238000007740 vapor deposition Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は光導体を利用した透過形光結合装置に関するも
ので、対向した二つの光導体の上記対向側とは反対の各
端に発光素子と受光素子を付設することにより、上記対
向光導体の間にある物体を容易に検出できる透過形光セ
ンサを提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transmission type optical coupling device using light guides, in which a light emitting element and a light receiving element are attached to each end of two opposing light guides opposite to the above-mentioned opposing sides. Accordingly, it is an object of the present invention to provide a transmission type optical sensor that can easily detect objects located between the opposing light guides.
従来の透過形光センサは第１図で示すように、発光素子
１と受光素子２とを互の光軸を合わせて対向させてハウ
ジングケースと称される保持体３に一体化して組み込み
、これらの発光・受光作用によって光学的に物体４を検
出していた。As shown in FIG. 1, a conventional transmission type optical sensor has a light-emitting element 1 and a light-receiving element 2, which are integrated into a holder 3 called a housing case, with their optical axes aligned and facing each other. The object 4 was detected optically by the light emitting and light receiving action of the light emitting and light receiving functions.
すなわち、かかる光センサにおいて、発光素子１からの
光は開口部６から出射し、開口部ｅを通って受光素子２
に到達する。その際、検出物体４があるときは光がしゃ
断される。しかるに、かかる方式の光センサでは、この
光センサ自体の大きさが発光素子１と受光素子２および
ノ・ウジングケ〜ス３の大きさで制限され、取付は場所
のせまい所には使えないという欠点があった。また、光
の通る開口部６，６は、一般に、通孔であシ、この中に
粉塵、ゴミなどがつまり、これによって、感度め低下を
生じたり、あるいは、誤動作をおこしやすい欠点があっ
た。That is, in this optical sensor, light from the light emitting element 1 is emitted from the opening 6, passes through the opening e, and reaches the light receiving element 2.
reach. At that time, when the detection object 4 is present, the light is cut off. However, the disadvantage of this type of optical sensor is that the size of the optical sensor itself is limited by the sizes of the light emitting element 1, the light receiving element 2, and the housing case 3, and it cannot be installed in a small space. was there. In addition, the openings 6, 6 through which the light passes are generally through holes, which have the drawback of being clogged with dust, dirt, etc., which may cause a decrease in sensitivity or cause malfunctions. .
本発明は上記の欠点をとりのぞき、狭い場所でも物体検
出が可能な透過形光センサを提供するものである。以下
、本発明の透過形光センサの構成を図面とともに説明す
る。The present invention eliminates the above-mentioned drawbacks and provides a transmission type optical sensor capable of detecting objects even in narrow spaces. Hereinafter, the configuration of the transmission type optical sensor of the present invention will be explained with reference to the drawings.
第２図は本発明の透過形光センサの一実施例を示してい
る。本発明の透過形光センサは発光素子１、受光素子２
．ハウジングケース３２発光素子１からの光を導出する
光導体７、受光素子２に光を導入する光導体８とから構
成されている。FIG. 2 shows an embodiment of the transmission type optical sensor of the present invention. The transmission type optical sensor of the present invention includes a light emitting element 1 and a light receiving element 2.
．． The housing case 32 is composed of a light guide 7 that guides light from the light emitting element 1 and a light guide 8 that introduces light to the light receiving element 2.
検出物体４が対向した２つの光導体７，８０間に設けら
れた所定の空間を通過したときに生じる光量変化により
この被検出物体４を検出することができる。第３図は光
導体７，８の一部を拡大した一例断面図である。光導体
７，８は光を透過する伝達部９，１ｏがガラスで構成さ
れ、光を反射する反射部１１．１２が同ガラス壁面に蒸
着形成されたアルミニウム被膜でなり、発光素子１から
の光１３は光導体７の反射部１１で反射しながら伝達部
９の内部を通過する。この光が対向して設置された光導
体８に入射しζ反射部１２で反射しながら伝達部１ｏの
内部を通過して受光素子２に入射する。本発明の上記実
施例透過形光センサによれば、光導体を細く小さくする
ことにより取付は場所の制約された狭い所にも容易に利
用できる。The object to be detected 4 can be detected by the change in the amount of light that occurs when the object to be detected passes through a predetermined space provided between the two opposing light guides 7 and 80. FIG. 3 is an enlarged cross-sectional view of a part of the light guides 7 and 8. As shown in FIG. In the light guides 7 and 8, the transmission parts 9 and 1o that transmit light are made of glass, and the reflection parts 11 and 12 that reflect light are made of an aluminum film deposited on the walls of the glass. 13 passes through the inside of the transmission section 9 while being reflected by the reflection section 11 of the light guide 7. This light enters the light guide 8 placed opposite to it, is reflected by the ζ reflection section 12, passes through the inside of the transmission section 1o, and enters the light receiving element 2. According to the transmission type optical sensor of the above embodiment of the present invention, by making the light guide thin and small, it can be easily installed even in a narrow place where space is restricted.
かつ、従来の透過形光センサのように通孔からなる開口
部を有しないことから防塵性を要求される用途にも優れ
た効果を奏する。In addition, since it does not have an opening consisting of a through hole unlike a conventional transmission type optical sensor, it is also excellent in applications that require dustproof properties.
以上の実施例は光導体としてガラスを用いた例であるが
、光導体として多成分系ガラス、プラスチック、透過性
の良好な樹脂を用いてもほぼ同様の効果を得ることがで
きる。また、本実施例は反射部“１１．１２としてへ２
蒸着を施した例であるが、反射率の良好なもの、たとえ
ば、めっき処理によって形成された金属性被膜で囲んで
もほぼ同様の効果を得ることができる。さらに−１光導
体７゜８の光の入射部および出射部をレンズ状に成型す
るとか、もしくは同先端部にレンズを付設すると、その
レンズの集光効果により検出分解能をあげることができ
る。Although the above embodiments are examples in which glass is used as the light guide, substantially the same effect can be obtained by using multi-component glass, plastic, or resin with good transparency as the light guide. In addition, in this embodiment, the reflection section "11.12" is
Although this is an example in which vapor deposition is applied, substantially the same effect can be obtained by surrounding it with a material having good reflectance, for example, a metallic film formed by plating. Furthermore, by molding the light incident and output parts of the -1 light guide 7.8 into lenses, or by attaching a lens to the tip thereof, the detection resolution can be increased due to the light condensing effect of the lens.
第１図は従来の透過形光センサを説明するための図、第
２図は本発明の一実施例における透過形光結合装置を説
明するための断面図、第３図は本発明の詳細な説明する
ための断面図である。
１・・・・・・発光素子、２・・・・・・受光素子、３
・・・・・・・ハウジングケース、４・・・・・・検出
物体、６，６・・・・・・開口部、７・・・・・・発光
素子からの光を導入する光導体、８・・・・・・受光素
子に光を導入する光導体、９，１ｏ・・・・・・光を透
過する伝達部、１１゜１２・・・・・・光を反射する反
射部、１３・・°°°°発光素子からの光、１４・・・
・・・受光素子への入射光。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名１８
１図
第３図FIG. 1 is a diagram for explaining a conventional transmission type optical sensor, FIG. 2 is a sectional view for explaining a transmission type optical coupling device according to an embodiment of the present invention, and FIG. 3 is a diagram for explaining a detailed transmission type optical sensor according to the present invention. It is a sectional view for explanation. 1... Light emitting element, 2... Light receiving element, 3
...... Housing case, 4... Detection object, 6, 6... Opening, 7... Light guide that introduces light from the light emitting element, 8... Light guide that introduces light into the light receiving element, 9, 1o... Transmission part that transmits light, 11° 12... Reflection part that reflects light, 13 ...°°°°Light from light emitting element, 14...
...Incidence light to the light receiving element. Name of agent: Patent attorney Toshio Nakao and 1 other person18
Figure 1 Figure 3
Claims (3)
わせ、前記第一の光路の一端に発光素子を、第二の光路
の一端に受光素子を付設するとともに、上記光導体は上
記光路を囲む高反射物質で囲１れた構造からなる透過形
光結合装置。(1) Both first and second optical paths formed by light guides are faced to each other, and a light emitting element is attached to one end of the first optical path and a light receiving element is attached to one end of the second optical path, and the light guide A transmission type optical coupling device consisting of a structure surrounded by a highly reflective material surrounding the optical path.
おける光の入射部および光の出射部以外の周面を反射率
の良好な物質で囲んだことを特徴とする特許請求の範囲
第１項記載の透過形光結合装置。(2) Claims characterized in that a transparent object that transmits light to the light guide is used, and the peripheral surface of the object other than the light entrance part and the light exit part is surrounded by a material with good reflectance. 2. The transmissive optical coupling device according to item 1.
にレンズを付設したことを特徴とする特許請求の範囲第
１項記載の透過形光結合装置。(3) The transmission type optical coupling device according to claim 1, wherein the tip of the light guide is formed into a lens shape or a lens is attached to the tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16059481A JPS5861408A (en) | 1981-10-07 | 1981-10-07 | Transmission type optical coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16059481A JPS5861408A (en) | 1981-10-07 | 1981-10-07 | Transmission type optical coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5861408A true JPS5861408A (en) | 1983-04-12 |
Family
ID=15718323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16059481A Pending JPS5861408A (en) | 1981-10-07 | 1981-10-07 | Transmission type optical coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5861408A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257507A (en) * | 1986-03-06 | 1986-11-15 | 酒井重工業株式会社 | Vibration mechanism of compaction mechine |
| JPH01102316A (en) * | 1987-10-03 | 1989-04-20 | Messerschmitt Boelkow Blohm Gmbh <Mbb> | Optical fiber sensor |
| DE3816045A1 (en) * | 1987-09-11 | 1989-05-24 | Flowtec Ag | Optical fibre device, in particular for mass flow rate meters |
| US5020380A (en) * | 1988-05-11 | 1991-06-04 | Flowtec Ag | Mass flow operating by the coriolis principle |
| WO1994008208A3 (en) * | 1992-10-02 | 1994-06-09 | Philip K Chin | Optical displacement sensor |
| WO1995004257A1 (en) * | 1993-07-30 | 1995-02-09 | Chin Philip K | Improved optical displacement sensor |
-
1981
- 1981-10-07 JP JP16059481A patent/JPS5861408A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257507A (en) * | 1986-03-06 | 1986-11-15 | 酒井重工業株式会社 | Vibration mechanism of compaction mechine |
| DE3816045A1 (en) * | 1987-09-11 | 1989-05-24 | Flowtec Ag | Optical fibre device, in particular for mass flow rate meters |
| JPH01102316A (en) * | 1987-10-03 | 1989-04-20 | Messerschmitt Boelkow Blohm Gmbh <Mbb> | Optical fiber sensor |
| US5020380A (en) * | 1988-05-11 | 1991-06-04 | Flowtec Ag | Mass flow operating by the coriolis principle |
| WO1994008208A3 (en) * | 1992-10-02 | 1994-06-09 | Philip K Chin | Optical displacement sensor |
| AU675082B2 (en) * | 1992-10-02 | 1997-01-23 | Philip K. Chin | Optical displacement sensor |
| EP1033558A1 (en) * | 1992-10-02 | 2000-09-06 | CHIN, Philip | Optical displacement sensor |
| WO1995004257A1 (en) * | 1993-07-30 | 1995-02-09 | Chin Philip K | Improved optical displacement sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4652745A (en) | Optical moisture sensor for a window or windshield | |
| KR920005443B1 (en) | Optical sensor | |
| JP2786030B2 (en) | Photoelectric sensor floodlight | |
| JP2003307658A (en) | Optical components for two-way optical communications | |
| JPS5861408A (en) | Transmission type optical coupler | |
| JP2001250979A (en) | Optical sensor | |
| GB2115175A (en) | Fibre optics head featuring core spacing to block specular reflection | |
| JPS6129077Y2 (en) | ||
| FR2588385A1 (en) | Detector of the passage of flat objects | |
| JPS5861407A (en) | Reflection type optical coupler | |
| JP3212485B2 (en) | Medium detection device | |
| JP2002181695A (en) | Leak sensor | |
| JP2851925B2 (en) | Reflective optical sensor | |
| JPS604844A (en) | Water-air discriminating apparatus | |
| JPH10307045A (en) | Transmission photosensor | |
| JP2522607Y2 (en) | Optical device using optical fiber | |
| KR920002352B1 (en) | Photo electric sensor | |
| JP2917197B2 (en) | Optical sensor device | |
| JPS6234459Y2 (en) | ||
| JP3863448B2 (en) | Liquid level detector | |
| JPH0257678B2 (en) | ||
| JPH06201456A (en) | Photoelectric sensor | |
| KR900007051B1 (en) | Semiconductor sensor | |
| JPS5948616A (en) | Optical type rotary encoder | |
| JPH10209490A (en) | Reflection-type optically coupled device |