JPS5614770A - Sheet for positioning photodetector - Google Patents

Sheet for positioning photodetector

Info

Publication number
JPS5614770A
JPS5614770A JP9063879A JP9063879A JPS5614770A JP S5614770 A JPS5614770 A JP S5614770A JP 9063879 A JP9063879 A JP 9063879A JP 9063879 A JP9063879 A JP 9063879A JP S5614770 A JPS5614770 A JP S5614770A
Authority
JP
Japan
Prior art keywords
photodetector
pattern
angle
parallel
flank
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
JP9063879A
Other languages
Japanese (ja)
Inventor
Shigeru Tani
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9063879A priority Critical patent/JPS5614770A/en
Publication of JPS5614770A publication Critical patent/JPS5614770A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Heads (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To make it easy and accurate to position a photodetector by forming on a light-transmissive film a taper pattern for focus adjustment and parallel patterns for rotation-angle adjustment. CONSTITUTION:Reference flank 6 of positioning film sheet 11 is positioned in contact with the reference flank of the unit and the photodetector is placed on orthgonal line 12 tapered. Then, focusing is carried out by edges of the black line and white line of this pattern. Next, cross pattern 13 is used to adjust the position of a read character. Next, the angle of rotation is adjusted by adjusting the angle of the photodetector so that the photodetector will agree with parallel lines 14 of different widths arrayed in parallel to reference flank 6. Next, the magnification of image formation is adjusted by magnification reference pattern 15. Consequently, it can be made easy and accurate to position the photodetector.
JP9063879A 1979-07-17 1979-07-17 Sheet for positioning photodetector Pending JPS5614770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9063879A JPS5614770A (en) 1979-07-17 1979-07-17 Sheet for positioning photodetector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9063879A JPS5614770A (en) 1979-07-17 1979-07-17 Sheet for positioning photodetector

Publications (1)

Publication Number Publication Date
JPS5614770A true JPS5614770A (en) 1981-02-13

Family

ID=14004033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9063879A Pending JPS5614770A (en) 1979-07-17 1979-07-17 Sheet for positioning photodetector

Country Status (1)

Country Link
JP (1) JPS5614770A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6961155B2 (en) 1998-08-18 2005-11-01 Fuji Photo Film Co., Ltd. Image reading apparatus, default value adjusting method of image reading apparatus, and chart original
CN103110270A (en) * 2013-03-17 2013-05-22 宣建民 Backpack device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6961155B2 (en) 1998-08-18 2005-11-01 Fuji Photo Film Co., Ltd. Image reading apparatus, default value adjusting method of image reading apparatus, and chart original
CN103110270A (en) * 2013-03-17 2013-05-22 宣建民 Backpack device

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