JPS56129985A - Photoelectric converter - Google Patents

Photoelectric converter

Info

Publication number
JPS56129985A
JPS56129985A JP3230580A JP3230580A JPS56129985A JP S56129985 A JPS56129985 A JP S56129985A JP 3230580 A JP3230580 A JP 3230580A JP 3230580 A JP3230580 A JP 3230580A JP S56129985 A JPS56129985 A JP S56129985A
Authority
JP
Japan
Prior art keywords
cellophane
area
surface reflection
photodetectors
mail
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
JP3230580A
Other languages
Japanese (ja)
Inventor
Shuji Kizu
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3230580A priority Critical patent/JPS56129985A/en
Publication of JPS56129985A publication Critical patent/JPS56129985A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition

Abstract

PURPOSE:To enable to detect the luster area on the object to be read in, by detecting the surface reflection waves from the object to be read in different plurality of directions through the provision of a plurality of photodetectors and adding the output signal of each photodetector. CONSTITUTION:The mail 2 is illuminated with the 1st and 2nd illumination light sources 41, 42 in a given angle theta from orthogonal direction to the carrying direction (a), the surface reflection light from the cellophane area is detected at the 1st and 2nd photodetectors 71, 72 respectively toward the said both directions, and the output signal of the detectors 71, 72 is summed at the signal addition circuit 8. Thus, even if unevenness or folds is present on cellophane paper on the mail 2, the surface reflection light from the cellophane area is surely detected, allowing accurately to detect the cellophane area.
JP3230580A 1980-03-14 1980-03-14 Photoelectric converter Pending JPS56129985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3230580A JPS56129985A (en) 1980-03-14 1980-03-14 Photoelectric converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3230580A JPS56129985A (en) 1980-03-14 1980-03-14 Photoelectric converter

Publications (1)

Publication Number Publication Date
JPS56129985A true JPS56129985A (en) 1981-10-12

Family

ID=12355231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3230580A Pending JPS56129985A (en) 1980-03-14 1980-03-14 Photoelectric converter

Country Status (1)

Country Link
JP (1) JPS56129985A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048578A (en) * 1983-08-25 1985-03-16 Hitachi Ltd Pattern detector
EP2048493A1 (en) * 2007-10-08 2009-04-15 Siemens Aktiengesellschaft Method and device for automatic checking of whether an item is covered in a film.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048578A (en) * 1983-08-25 1985-03-16 Hitachi Ltd Pattern detector
EP2048493A1 (en) * 2007-10-08 2009-04-15 Siemens Aktiengesellschaft Method and device for automatic checking of whether an item is covered in a film.

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