JPS57197513A - Reader - Google Patents

Reader

Info

Publication number
JPS57197513A
JPS57197513A JP56082682A JP8268281A JPS57197513A JP S57197513 A JPS57197513 A JP S57197513A JP 56082682 A JP56082682 A JP 56082682A JP 8268281 A JP8268281 A JP 8268281A JP S57197513 A JPS57197513 A JP S57197513A
Authority
JP
Japan
Prior art keywords
original
plane
positioning
ratio
opening
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
JP56082682A
Other languages
Japanese (ja)
Inventor
Tetsushi Nose
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56082682A priority Critical patent/JPS57197513A/en
Priority to US06/309,380 priority patent/US4539482A/en
Priority to DE19813140217 priority patent/DE3140217A1/en
Publication of JPS57197513A publication Critical patent/JPS57197513A/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
    • H04N1/0306—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a plurality of optical elements arrayed in the main scan direction, e.g. an array of lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4255—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application for alignment or positioning purposes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4272—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
    • G02B27/4277—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path being separated by an air space
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/1951—Scanning picture elements spaced apart from one another in at least one direction in one direction
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19526—Optical means
    • H04N1/19536—Refracting elements
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19526—Optical means
    • H04N1/19547—Apertures
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19573—Displacing the scanned image

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Facsimile Heads (AREA)

Abstract

PURPOSE:To obtain a reader with higher accuracy for positioning and higher S/N ratio, by disposing an opening of slit shape on an original plane and between the original plane and a zone plate used in place of an image forming lens. CONSTITUTION:Images of parts 141 and 142 of pictures and calligraphic works drawn on an original 13 are formed on this film sensors 171 and 172 on a transparent base 19 with zone plates 151 and 152 provided on a transparent base 18. A reference pattern is provided on the transparent bases 18 and 19 for the positioning of the zone plates 151 and 152 and the thin film sensors 171 and 172. On the other hand, to increase the S/N ratio through reduced flair rate on the sensor plane, the original reading plane is restricted to the opening having W in slit width.
JP56082682A 1980-10-09 1981-05-29 Reader Pending JPS57197513A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56082682A JPS57197513A (en) 1981-05-29 1981-05-29 Reader
US06/309,380 US4539482A (en) 1980-10-09 1981-10-07 Reading apparatus
DE19813140217 DE3140217A1 (en) 1980-10-09 1981-10-09 "READER"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082682A JPS57197513A (en) 1981-05-29 1981-05-29 Reader

Publications (1)

Publication Number Publication Date
JPS57197513A true JPS57197513A (en) 1982-12-03

Family

ID=13781188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082682A Pending JPS57197513A (en) 1980-10-09 1981-05-29 Reader

Country Status (1)

Country Link
JP (1) JPS57197513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212960A (en) * 1985-03-19 1986-09-20 Toshiba Corp Picture reader

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396618A (en) * 1977-02-02 1978-08-24 Nippon Telegr & Teleph Corp <Ntt> Solid photoelectric converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396618A (en) * 1977-02-02 1978-08-24 Nippon Telegr & Teleph Corp <Ntt> Solid photoelectric converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212960A (en) * 1985-03-19 1986-09-20 Toshiba Corp Picture reader

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