JPS5918474A - Reflection type detector - Google Patents
Reflection type detectorInfo
- Publication number
- JPS5918474A JPS5918474A JP57127910A JP12791082A JPS5918474A JP S5918474 A JPS5918474 A JP S5918474A JP 57127910 A JP57127910 A JP 57127910A JP 12791082 A JP12791082 A JP 12791082A JP S5918474 A JPS5918474 A JP S5918474A
- Authority
- JP
- Japan
- Prior art keywords
- light
- arrow
- emitting element
- reflective
- detected
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
- G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、検出装置に関するものであり、詳しくは、紙
、フィルム等の検出に用いる反射式検出装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detection device, and more particularly to a reflective detection device used for detecting paper, film, and the like.
従来、この種の検出装置には、無接触で薄紙、ガラス、
プラスチック等の透明な被検出物体の有無の検出を行な
える反射型ホトセンサが使用されてきた。Conventionally, this type of detection device uses thin paper, glass,
Reflective photosensors that can detect the presence or absence of transparent objects such as plastic have been used.
反射型ホトセンサを用いた検出装置は、従来、第３図の
ように、発光素子１１と受光素子１２の光軸が同一平面
内である距離を隔てて交わるように発光素子１１、受光
素子１２が併置された反射型ホトセンサが使用されてい
る。第３図ｕ）Ｖｉ、従来例の検出状態であり、発光素
子１１から出た光は、矢印Ｅの方向に進入、被検出物体
４にあたる。Conventionally, in a detection device using a reflective photosensor, the light emitting element 11 and the light receiving element 12 are arranged such that the optical axes of the light emitting element 11 and the light receiving element 12 intersect at a certain distance in the same plane, as shown in FIG. Co-located reflective photosensors are used. FIG. 3 u) Vi shows the detection state of the conventional example, in which light emitted from the light emitting element 11 enters in the direction of arrow E and hits the object 4 to be detected.
そこで反射された光が、矢印Ｆの方向に進入、受光素子
１２により検出される。しかし第３図の）のように、検
出位置の制約により検出位置直後に、フレーム等の物体
５があると、被検出物体がなくても、発光素子１１から
出た光は、一体５にあたり反射され、矢印ＧＨの光路を
と９受光素子１２が検出してしまい、被検出物体の有無
を検出するのが不可能になった９、また、積出可能であ
るが被検出物体の有無による受光素子の出力の電位差か
小さく、検出製雪後片の検出回路の構成が困難になると
いう欠点があった。The light reflected there enters in the direction of arrow F and is detected by the light receiving element 12. However, as shown in Figure 3), if there is an object 5 such as a frame immediately after the detection position due to the restriction of the detection position, the light emitted from the light emitting element 11 will be reflected by the body 5 even if there is no object to be detected. 9, the light receiving element 12 detects the optical path of the arrow GH, making it impossible to detect the presence or absence of the object to be detected. The disadvantage is that the potential difference between the outputs of the elements is small, making it difficult to construct a circuit for detecting snowflakes.
本発明は、かかる欠点を除去したもので、その目的は、
検出位置直接の物体の有無にかかわらず被検出物体の有
無を検出することが可能な、検出能力の向上した反射式
検出装置を得ることにある。The present invention eliminates such drawbacks, and its purpose is to:
An object of the present invention is to obtain a reflection type detection device with improved detection ability, which can detect the presence or absence of an object to be detected regardless of the presence or absence of an object directly at a detection position.
本発明による反射式検出装置は、光軸が同一平面内にあ
るが交差しない方向に併置された発光素子、受光素子を
もつ反射型ホトセンサ、および、反射型ホトセンサ前方
の四部をもつ反射壁から構成されていることを％黴とし
ている。The reflective detection device according to the present invention is composed of a reflective photosensor having a light emitting element and a light receiving element, which are arranged side by side so that their optical axes are in the same plane but do not intersect, and a reflective wall having four parts in front of the reflective photosensor. It is said that it is % mold.
本発明を図面により詳しく駅間すると、第１図は、本発
明による一実施例であり、第１図（ａ）は被検出物体が
無いときの光路を示す。発光素子１から出九光は矢印Ａ
の方向に進んで、反射壁３αにあたり、矢印Ｂの方向に
進入、次に反射壁３ｂにあたり反射されて矢印Ｃに示す
ように受光素子２に入射して検出される。第１図の）は
、被検出物体があるときの光路を示す。発光素子１から
出た光は、矢印Ａの方向に進み被検出物体４にあた９、
そこで反射されて矢印りの方向に進むため、受光素子２
では検出されない。このように本発明では被検出物体４
があるとき、受光素子２はオフの状態になり、被検出物
体４がないときオンの状態になる。To explain the present invention in more detail in the drawings, FIG. 1 shows one embodiment of the present invention, and FIG. 1(a) shows the optical path when there is no object to be detected. Nine lights emitted from light emitting element 1 are indicated by arrow A.
It travels in the direction of arrow B, hits the reflective wall 3α, enters in the direction of arrow B, then hits the reflective wall 3b, is reflected, enters the light receiving element 2 as shown by arrow C, and is detected. ) in FIG. 1 shows the optical path when there is an object to be detected. The light emitted from the light emitting element 1 travels in the direction of arrow A and hits the object to be detected 4.
It is reflected there and travels in the direction of the arrow, so the light receiving element 2
is not detected. In this way, in the present invention, the detected object 4
When there is no detected object 4, the light receiving element 2 is in an off state, and when there is no detected object 4, it is in an on state.
第２図は、本発明による他の実施例であり、上記の実施
例における反射壁を反射型ホトセンサのパッケージ１６
と一体化したもので、発光素子１から出た光は矢印Ａ、
Ｂ、Ｏの如く反射壁１３α。FIG. 2 shows another embodiment according to the present invention, in which the reflective wall in the above embodiment is used as a reflective photosensor package 16.
The light emitted from light emitting element 1 is shown by arrow A,
Reflective walls 13α as shown in B and O.
１３ｂにアタって反射し、受光素子２に入射して検出さ
れる。この場合、反射型ホトセンサと反射壁の位置合せ
が不要となる。13b, it is reflected, enters the light receiving element 2, and is detected. In this case, there is no need to align the reflective photosensor and the reflective wall.
本発明は、上記のように発光素子からの光が２回反射後
受光素子に入射するような凹面からなる反射壁を反射型
ホトセンサ前方に設けた構造になっているため、被検出
物体があるとき、受光素子に光を入射させず、被検出物
体がないとき、受光素子に確実に光を入射させることが
でき、被検出物体の有無を明確に検出する効果がある。As described above, the present invention has a structure in which a reflective wall made of a concave surface is provided in front of the reflective photosensor so that the light from the light emitting element is reflected twice and then enters the light receiving element. When no light is made to enter the light-receiving element and there is no object to be detected, the light can be reliably made to enter the light-receiving element, which has the effect of clearly detecting the presence or absence of the object to be detected.
以上説明したように、本発明による反射式検出装置は、
光軸が同一平面内にあるが交差しない方向に併置された
発光素子、受光素子をもつ反射型ホトセンサと、反射型
ホトセンサ前方の凹部をもつ反射壁を設けるという簡単
な構造で、検出位置直後に、被検出物体以外の物体があ
る場合でも、被検出物体の有無を明確に検出できる、検
出能力の向上した信頼性の高い反射式検出装置を提供す
るものである。As explained above, the reflective detection device according to the present invention has
This simple structure consists of a reflective photosensor with a light-emitting element and a light-receiving element placed side by side so that their optical axes lie in the same plane but do not intersect, and a reflective wall with a recess in front of the reflective photosensor. The present invention provides a highly reliable reflective detection device with improved detection ability that can clearly detect the presence or absence of an object even when there is an object other than the object to be detected.
第１図、第２図は、本発明による反射式検出装置の実施
例の縦断面図、第５図は従来例の縦断面図である。
１．１１・・・・・・発光素子 ２．１２・・・・・・
受光素子３ａ、 ３ｂ、１５ｂ・・・・・・反射壁４・
・・・・・被検出物体 ５・・・・・・物体６．２６
・・・・・・パッケージ
以 上
出願人 信州精器株式会社
代理人 弁理士 最 上 務
５ −
第１図1 and 2 are longitudinal sectional views of an embodiment of the reflective detection device according to the present invention, and FIG. 5 is a longitudinal sectional view of a conventional example. 1.11... Light emitting element 2.12...
Light receiving elements 3a, 3b, 15b...Reflecting wall 4.
...Detected object 5...Object 6.26
・・・・・・Package and above Applicant Shinshu Seiki Co., Ltd. Agent Patent Attorney Mogami Mutsu 5 - Figure 1
Claims (1)
う検出装置において、光軸が同一平面内にあるが交差し
ない方向に併置された発光素子、受光素子をもつ反射型
ホトセンサ、および反射型ホトセンサ前方の凹部をもつ
反射壁から構成されたことｔｌ−％徴とする反射式検出
装置。In a detection device that detects the presence or absence of an object using a reflective photosensor, there is a reflective photosensor that has a light-emitting element and a light-receiving element placed side by side in directions whose optical axes are in the same plane but do not intersect, and a reflective photosensor in front of the reflective photosensor. A reflective detection device comprising a reflective wall having a concave portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57127910A JPS5918474A (en) | 1982-07-22 | 1982-07-22 | Reflection type detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57127910A JPS5918474A (en) | 1982-07-22 | 1982-07-22 | Reflection type detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5918474A true JPS5918474A (en) | 1984-01-30 |
| JPH0415433B2 JPH0415433B2 (en) | 1992-03-17 |
Family
ID=14971672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57127910A Granted JPS5918474A (en) | 1982-07-22 | 1982-07-22 | Reflection type detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5918474A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145062U (en) * | 1984-03-08 | 1985-09-26 | 株式会社 寺岡精工 | label printer |
| JPH01255657A (en) * | 1988-04-02 | 1989-10-12 | Sumitomo Electric Ind Ltd | Coated hard alloy and its production |
| US5075181A (en) * | 1989-05-05 | 1991-12-24 | Kennametal Inc. | High hardness/high compressive stress multilayer coated tool |
| US5116694A (en) * | 1985-01-21 | 1992-05-26 | Sumitomo Electric Industries, Ltd. | Coated cemented carbides |
| US5232318A (en) * | 1990-09-17 | 1993-08-03 | Kennametal Inc. | Coated cutting tools |
| US5250367A (en) * | 1990-09-17 | 1993-10-05 | Kennametal Inc. | Binder enriched CVD and PVD coated cutting tool |
| US5266388A (en) * | 1990-09-17 | 1993-11-30 | Kennametal Inc. | Binder enriched coated cutting tool |
| JPH06210511A (en) * | 1985-09-06 | 1994-08-02 | Mitsubishi Materials Corp | Surface covered endmill excellent in anti-wear quality |
| US5364209A (en) * | 1990-09-17 | 1994-11-15 | Kennametal Inc. | CVD and PVD coated cutting tools |
| US5750247A (en) * | 1996-03-15 | 1998-05-12 | Kennametal, Inc. | Coated cutting tool having an outer layer of TiC |
| EP1431780A3 (en) * | 2002-12-21 | 2005-03-30 | Diehl AKO Stiftung & Co. KG | Diaphragm for optical sensor |
| JP2007093337A (en) * | 2005-09-28 | 2007-04-12 | Sunx Ltd | Photoelectric sensor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10866555B2 (en) | 2017-01-19 | 2020-12-15 | Canon Kabushiki Kaisha | Image forming apparatus capable of detecting sheet |
| US10838358B2 (en) | 2017-11-07 | 2020-11-17 | Canon Kabushiki Kaisha | Image forming apparatus that has sheet sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48100182U (en) * | 1972-02-26 | 1973-11-26 | ||
| JPS5526420U (en) * | 1978-07-26 | 1980-02-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231788A (en) * | 1975-09-04 | 1977-03-10 | Matsushita Electric Ind Co Ltd | Ultrasnic probe |
-
1982
- 1982-07-22 JP JP57127910A patent/JPS5918474A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48100182U (en) * | 1972-02-26 | 1973-11-26 | ||
| JPS5526420U (en) * | 1978-07-26 | 1980-02-20 |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145062U (en) * | 1984-03-08 | 1985-09-26 | 株式会社 寺岡精工 | label printer |
| JPH0243743Y2 (en) * | 1984-03-08 | 1990-11-20 | ||
| US5116694A (en) * | 1985-01-21 | 1992-05-26 | Sumitomo Electric Industries, Ltd. | Coated cemented carbides |
| JPH06210511A (en) * | 1985-09-06 | 1994-08-02 | Mitsubishi Materials Corp | Surface covered endmill excellent in anti-wear quality |
| JPH01255657A (en) * | 1988-04-02 | 1989-10-12 | Sumitomo Electric Ind Ltd | Coated hard alloy and its production |
| US5075181A (en) * | 1989-05-05 | 1991-12-24 | Kennametal Inc. | High hardness/high compressive stress multilayer coated tool |
| US5250367A (en) * | 1990-09-17 | 1993-10-05 | Kennametal Inc. | Binder enriched CVD and PVD coated cutting tool |
| US5266388A (en) * | 1990-09-17 | 1993-11-30 | Kennametal Inc. | Binder enriched coated cutting tool |
| US5232318A (en) * | 1990-09-17 | 1993-08-03 | Kennametal Inc. | Coated cutting tools |
| US5364209A (en) * | 1990-09-17 | 1994-11-15 | Kennametal Inc. | CVD and PVD coated cutting tools |
| US5395680A (en) * | 1990-09-17 | 1995-03-07 | Kennametal Inc. | Coated cutting tools |
| US5750247A (en) * | 1996-03-15 | 1998-05-12 | Kennametal, Inc. | Coated cutting tool having an outer layer of TiC |
| EP1431780A3 (en) * | 2002-12-21 | 2005-03-30 | Diehl AKO Stiftung & Co. KG | Diaphragm for optical sensor |
| JP2007093337A (en) * | 2005-09-28 | 2007-04-12 | Sunx Ltd | Photoelectric sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0415433B2 (en) | 1992-03-17 |
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