JPH0333389U - - Google Patents

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Publication number
JPH0333389U
JPH0333389U JP9362089U JP9362089U JPH0333389U JP H0333389 U JPH0333389 U JP H0333389U JP 9362089 U JP9362089 U JP 9362089U JP 9362089 U JP9362089 U JP 9362089U JP H0333389 U JPH0333389 U JP H0333389U
Authority
JP
Japan
Prior art keywords
light
optical fiber
receiving
sensor head
incident
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
Application number
JP9362089U
Other languages
Japanese (ja)
Other versions
JPH086307Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989093620U priority Critical patent/JPH086307Y2/en
Publication of JPH0333389U publication Critical patent/JPH0333389U/ja
Application granted granted Critical
Publication of JPH086307Y2 publication Critical patent/JPH086307Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ａは本考案に係る光センサの一実施例を
示すセンサヘツド断面図、第１図ｂは第１図ａの
受光用光フアイバの受光面となるキヤツプのスリ
ツトを示す正面図、第２図は本考案の光センサに
よる検出距離に対する受光量の関係を示す特性図
である。第３図は光センサの従来例を示す概略構
成図、第４図は第３図の光センサの検出距離に対
する受光量の関係を示す特性図である。 １１……センサヘツド、１３……投光用光フア
イバ、１７……集光レンズ、１８……受光用光フ
アイバ、２２……集光レンズ、２３……受光面、
ｌ１，ｌ２……光軸、θ……所定の角度、Ｌ１…
…投射光、Ｌ２……入射光、ｎ……交差部分。 FIG. 1a is a sectional view of a sensor head showing an embodiment of the optical sensor according to the present invention, FIG. The figure is a characteristic diagram showing the relationship between the amount of light received and the detection distance by the optical sensor of the present invention. FIG. 3 is a schematic configuration diagram showing a conventional example of an optical sensor, and FIG. 4 is a characteristic diagram showing the relationship between the amount of light received and the detection distance of the optical sensor of FIG. DESCRIPTION OF SYMBOLS 11...Sensor head, 13...Optical fiber for light emission, 17...Condenser lens, 18...Optical fiber for light reception, 22...Condensing lens, 23...Light receiving surface,
l 1 , l 2 ... optical axis, θ ... predetermined angle, L 1 ...
... Projection light, L 2 ... Incident light, n ... Intersection.

Claims (1)

【実用新案登録請求の範囲】 投光素子から延びる投光用光フアイバの前方に
、その光フアイバからの投射光を集束させる集光
レンズを配置すると共に、受光素子から延びる受
光用光フアイバの前方に、その光フアイバへの入
射光を集束させる集光レンズを配置することによ
り、光の投射方向に対して受光方向に所定の角度
を持たせたセンサヘツドを有し、光の投射範囲と
受光範囲の交差部分からの反射光による受光出力
が所定のレベルを越えるか否かによつて物体を識
別するものであつて、 上記受光用光フアイバの受光面を、投射光と入
射光による交差部分のセンサヘツドから遠い位置
で反射した入射光を受光する部位から、上記交差
部分のセンサヘツドから近い位置で反射した入射
光を受光する部位へ向かつて、その受光面積が連
続的に漸減するような形状としたことを特徴とす
る光センサ。[Claims for Utility Model Registration] A condenser lens for converging the projection light from the optical fiber is disposed in front of the light-emitting optical fiber extending from the light-emitting element, and in front of the light-receiving optical fiber extending from the light-receiving element. By arranging a condensing lens that focuses the light incident on the optical fiber, the sensor head has a predetermined angle in the light receiving direction with respect to the light projection direction, and the light projection range and light receiving range can be adjusted. Objects are identified based on whether the received light output from the intersection of the projected light and the incident light exceeds a predetermined level, and the light receiving surface of the light receiving optical fiber is The shape is such that the light-receiving area gradually decreases from the part that receives reflected incident light at a position far from the sensor head to the part that receives reflected incident light at a position close to the sensor head at the intersection. An optical sensor characterized by:
JP1989093620U 1989-08-08 1989-08-08 Optical sensor Expired - Lifetime JPH086307Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989093620U JPH086307Y2 (en) 1989-08-08 1989-08-08 Optical sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989093620U JPH086307Y2 (en) 1989-08-08 1989-08-08 Optical sensor

Publications (2)

Publication Number Publication Date
JPH0333389U true JPH0333389U (en) 1991-04-02
JPH086307Y2 JPH086307Y2 (en) 1996-02-21

Family

ID=31642987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989093620U Expired - Lifetime JPH086307Y2 (en) 1989-08-08 1989-08-08 Optical sensor

Country Status (1)

Country Link
JP (1) JPH086307Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07208919A (en) * 1994-01-26 1995-08-11 Mitsubishi Rayon Co Ltd Limited reflection type optical fiber sensor head
JP2009047433A (en) * 2007-08-13 2009-03-05 Ihi Corp Sensitivity adjustment method of laser distance measurement apparatus, and laser distance measurement apparatus
JP2015518144A (en) * 2012-04-04 2015-06-25 ヴァレオ・シャルター・ウント・ゼンゾーレン・ゲーエムベーハー Optoelectronic sensor device, in particular a laser scanner, with an adapted receiver for an optimized reduction of the reception level

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112783A (en) * 1988-10-21 1990-04-25 Hokuyo Automatic Co Photosensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112783A (en) * 1988-10-21 1990-04-25 Hokuyo Automatic Co Photosensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07208919A (en) * 1994-01-26 1995-08-11 Mitsubishi Rayon Co Ltd Limited reflection type optical fiber sensor head
JP2009047433A (en) * 2007-08-13 2009-03-05 Ihi Corp Sensitivity adjustment method of laser distance measurement apparatus, and laser distance measurement apparatus
JP2015518144A (en) * 2012-04-04 2015-06-25 ヴァレオ・シャルター・ウント・ゼンゾーレン・ゲーエムベーハー Optoelectronic sensor device, in particular a laser scanner, with an adapted receiver for an optimized reduction of the reception level

Also Published As

Publication number Publication date
JPH086307Y2 (en) 1996-02-21

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