JPS5574408A - Optical inspection device for object surface - Google Patents

Optical inspection device for object surface

Info

Publication number
JPS5574408A
JPS5574408A JP14823078A JP14823078A JPS5574408A JP S5574408 A JPS5574408 A JP S5574408A JP 14823078 A JP14823078 A JP 14823078A JP 14823078 A JP14823078 A JP 14823078A JP S5574408 A JPS5574408 A JP S5574408A
Authority
JP
Japan
Prior art keywords
slit
photocells
photocell
inspection device
object surface
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
Application number
JP14823078A
Other languages
Japanese (ja)
Inventor
Kenichiro Uehara
Yoshihiro Nasu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP14823078A priority Critical patent/JPS5574408A/en
Publication of JPS5574408A publication Critical patent/JPS5574408A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE: To inspect the surface of object by means of a photoelectric output by providing a pair of slit-shaped photocell the electric output of which is differentially formed so that the surface of object is imaged on the photocell through a optical system.
CONSTITUTION: A pencil of light rays 2 is applied to the object 1, images are formed on the slit-shaped photocells 4, 4' arranged perpendicularly to the moving direction of object. Both the photocells are parallel to each other and respective areas are the same, their outputs 6, 7 are fed to the differential amplifier 8, and when its difference signal output becomes a fixed value or more, a warning is given by a buzzer.
COPYRIGHT: (C)1980,JPO&Japio
JP14823078A 1978-11-29 1978-11-29 Optical inspection device for object surface Pending JPS5574408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14823078A JPS5574408A (en) 1978-11-29 1978-11-29 Optical inspection device for object surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14823078A JPS5574408A (en) 1978-11-29 1978-11-29 Optical inspection device for object surface

Publications (1)

Publication Number Publication Date
JPS5574408A true JPS5574408A (en) 1980-06-05

Family

ID=15448174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14823078A Pending JPS5574408A (en) 1978-11-29 1978-11-29 Optical inspection device for object surface

Country Status (1)

Country Link
JP (1) JPS5574408A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746854U (en) * 1980-08-30 1982-03-16
JPS57144054U (en) * 1981-03-04 1982-09-09
JPS59174743A (en) * 1983-03-17 1984-10-03 シ−メンス，アクチエンゲゼルシヤフト Optical type testing device for surface flaw detection of cable and conductor
JPS62200254A (en) * 1986-02-28 1987-09-03 Toho Rayon Co Ltd Defect detection of filament
JPS62173044U (en) * 1986-04-22 1987-11-04

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746854U (en) * 1980-08-30 1982-03-16
JPS57144054U (en) * 1981-03-04 1982-09-09
JPS59174743A (en) * 1983-03-17 1984-10-03 シ−メンス，アクチエンゲゼルシヤフト Optical type testing device for surface flaw detection of cable and conductor
JPS62200254A (en) * 1986-02-28 1987-09-03 Toho Rayon Co Ltd Defect detection of filament
JPS62173044U (en) * 1986-04-22 1987-11-04
JPH0439566Y2 (en) * 1986-04-22 1992-09-16

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