JPS57113311A - Measuring device for surface coarseness of object - Google Patents

Measuring device for surface coarseness of object

Info

Publication number
JPS57113311A
JPS57113311A JP18857380A JP18857380A JPS57113311A JP S57113311 A JPS57113311 A JP S57113311A JP 18857380 A JP18857380 A JP 18857380A JP 18857380 A JP18857380 A JP 18857380A JP S57113311 A JPS57113311 A JP S57113311A
Authority
JP
Japan
Prior art keywords
light
irradiated
picture
photographer
convexity
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
JP18857380A
Other languages
Japanese (ja)
Other versions
JPS6248163B2 (en
Inventor
Masayuki Nakagawa
Shinji Okamoto
Satoshi Furukawa
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP55188573A priority Critical patent/JPS6248163B2/ja
Publication of JPS57113311A publication Critical patent/JPS57113311A/en
Publication of JPS6248163B2 publication Critical patent/JPS6248163B2/ja
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/30Measuring arrangements characterised by the use of optical means for measuring roughness or irregularity of surfaces
    • G01B11/306Measuring arrangements characterised by the use of optical means for measuring roughness or irregularity of surfaces for measuring evenness

Abstract

PURPOSE:To reliably measure height and position of concavity and convexity on a surface of an object, by a method wherein light from a cylindrical convex lens is reflected by a half-mirror to irradiated the object surface with the reflection light, and a light picture is detected by a scanning photographer. CONSTITUTION:Parallel light irradiated from an approximately rectangular surface light source 1 is converted into a focusing light by means of a cylindrical convex lens 2, and a surface 5 of an object 4 is irradiated with the focusing light through a half-mirror 3. An approximately rectangular light picture focused on the surface 5 of the object 4 is photographed by a scanning system photographer 7. The degree of fuzz of the light picture formed on the surface 5 of the object 4 is measured, and this permits the automatic measurement and evaluation of the concavity and convexity on the object surface 5.
JP55188573A 1980-12-29 1980-12-29 Expired JPS6248163B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188573A JPS6248163B2 (en) 1980-12-29 1980-12-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188573A JPS6248163B2 (en) 1980-12-29 1980-12-29

Publications (2)

Publication Number Publication Date
JPS57113311A true JPS57113311A (en) 1982-07-14
JPS6248163B2 JPS6248163B2 (en) 1987-10-13

Family

ID=16226042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188573A Expired JPS6248163B2 (en) 1980-12-29 1980-12-29

Country Status (1)

Country Link
JP (1) JPS6248163B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694688A (en) * 1985-02-08 1987-09-22 Hitachi, Ltd. Crank angle sensor
JPH01502849A (en) * 1987-03-24 1989-09-28
JP2008282689A (en) * 2007-05-11 2008-11-20 Iwasaki Electric Co Ltd Luminaire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133602A (en) * 1980-03-24 1981-10-19 Ritsuo Hasumi Noncontacting optical roughness gauge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133602A (en) * 1980-03-24 1981-10-19 Ritsuo Hasumi Noncontacting optical roughness gauge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694688A (en) * 1985-02-08 1987-09-22 Hitachi, Ltd. Crank angle sensor
JPH01502849A (en) * 1987-03-24 1989-09-28
JP2008282689A (en) * 2007-05-11 2008-11-20 Iwasaki Electric Co Ltd Luminaire

Also Published As

Publication number Publication date
JPS6248163B2 (en) 1987-10-13

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