JPS5223381A - Method of detecting transparent objects - Google Patents

Method of detecting transparent objects

Info

Publication number
JPS5223381A
JPS5223381A JP9862975A JP9862975A JPS5223381A JP S5223381 A JPS5223381 A JP S5223381A JP 9862975 A JP9862975 A JP 9862975A JP 9862975 A JP9862975 A JP 9862975A JP S5223381 A JPS5223381 A JP S5223381A
Authority
JP
Japan
Prior art keywords
transparent objects
detecting transparent
absence
detected
detecting
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
JP9862975A
Other languages
Japanese (ja)
Inventor
Tohei Kawakami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9862975A priority Critical patent/JPS5223381A/en
Publication of JPS5223381A publication Critical patent/JPS5223381A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/171—Physical features of handled article or web
    • B65H2701/1712—Transparent

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To detect the presence of absence of an object to be detected by passing the object to be detected through light at an angle to optical axis and expanding the difference in the optical axis according to the presence or absence of the film.
JP9862975A 1975-08-15 1975-08-15 Method of detecting transparent objects Pending JPS5223381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9862975A JPS5223381A (en) 1975-08-15 1975-08-15 Method of detecting transparent objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9862975A JPS5223381A (en) 1975-08-15 1975-08-15 Method of detecting transparent objects

Publications (1)

Publication Number Publication Date
JPS5223381A true JPS5223381A (en) 1977-02-22

Family

ID=14224799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9862975A Pending JPS5223381A (en) 1975-08-15 1975-08-15 Method of detecting transparent objects

Country Status (1)

Country Link
JP (1) JPS5223381A (en)

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