JPS571906A - Discriminator for surface and reverse side of article - Google Patents

Discriminator for surface and reverse side of article

Info

Publication number
JPS571906A
JPS571906A JP7589980A JP7589980A JPS571906A JP S571906 A JPS571906 A JP S571906A JP 7589980 A JP7589980 A JP 7589980A JP 7589980 A JP7589980 A JP 7589980A JP S571906 A JPS571906 A JP S571906A
Authority
JP
Japan
Prior art keywords
article
reverse side
reliability
irradiated
ratio
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
JP7589980A
Other languages
Japanese (ja)
Inventor
Toshio Takenaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7589980A priority Critical patent/JPS571906A/en
Publication of JPS571906A publication Critical patent/JPS571906A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sorting Of Articles (AREA)

Abstract

PURPOSE:To improve the reliability of the discrimination result, by detecting the light reflected from an article irradiated by a lighting apparatus, from two or more directions different from each other, and obtaining the ratio of said output signals. CONSTITUTION:An article 1 is irradiated by a lighting apparatus 3. The rays reflected therefrom are detected by using lenses 4a and 4b and photoelectric transducers 5a and 5b. The outputs a1 and a2 therefrom are inputted to a divider 7 to obtain a ratio. Said output (c) is compared with a previously set reference voltage in a compatator to discriminate between the surface and the reverse side of the article 1. Thereby, the reliability of the discrimination result improves.
JP7589980A 1980-06-04 1980-06-04 Discriminator for surface and reverse side of article Pending JPS571906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7589980A JPS571906A (en) 1980-06-04 1980-06-04 Discriminator for surface and reverse side of article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7589980A JPS571906A (en) 1980-06-04 1980-06-04 Discriminator for surface and reverse side of article

Publications (1)

Publication Number Publication Date
JPS571906A true JPS571906A (en) 1982-01-07

Family

ID=13589630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7589980A Pending JPS571906A (en) 1980-06-04 1980-06-04 Discriminator for surface and reverse side of article

Country Status (1)

Country Link
JP (1) JPS571906A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029606A (en) * 1983-07-28 1985-02-15 Shinko Electric Co Ltd Attitude discriminating method of parts
JPH01131409A (en) * 1987-08-04 1989-05-24 Kawasaki Steel Corp Measuring instrument for maximum irregular reflection intensity
JPH03172740A (en) * 1989-11-30 1991-07-26 Hooya Shiyotsuto Kk Surface reflected light measurement device for moving body
US5099522A (en) * 1989-05-29 1992-03-24 Rohm Co., Ltd. Method and apparatus for performing head-tail discrimination of electronic chip components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029606A (en) * 1983-07-28 1985-02-15 Shinko Electric Co Ltd Attitude discriminating method of parts
JPH01131409A (en) * 1987-08-04 1989-05-24 Kawasaki Steel Corp Measuring instrument for maximum irregular reflection intensity
US5099522A (en) * 1989-05-29 1992-03-24 Rohm Co., Ltd. Method and apparatus for performing head-tail discrimination of electronic chip components
JPH03172740A (en) * 1989-11-30 1991-07-26 Hooya Shiyotsuto Kk Surface reflected light measurement device for moving body

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