JPS57170666A - Colored original reading device - Google Patents

Colored original reading device

Info

Publication number
JPS57170666A
JPS57170666A JP56054573A JP5457381A JPS57170666A JP S57170666 A JPS57170666 A JP S57170666A JP 56054573 A JP56054573 A JP 56054573A JP 5457381 A JP5457381 A JP 5457381A JP S57170666 A JPS57170666 A JP S57170666A
Authority
JP
Japan
Prior art keywords
lens
lenses
component
original
image forming
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
JP56054573A
Other languages
Japanese (ja)
Inventor
Jun Tokumitsu
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 JP56054573A priority Critical patent/JPS57170666A/en
Publication of JPS57170666A publication Critical patent/JPS57170666A/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
    • H04N1/46—Colour picture communication systems
    • H04N1/48—Picture signal generators
    • H04N1/486—Picture signal generators with separate detectors, each detector being used for one specific colour component

Abstract

PURPOSE:To enable accurate color discrimination using the same kind of lenses by providing plural sensors corresponding to plural color components of an original and changing the position of lenses that forms an image on the sensor for each color component. CONSTITUTION:For the surface of an original 1, a sensor face 2 for reading cyan component and a lens 4, and a sensor face 3 for red component and a lens 5 are arranged making the distance to respective sensor face and lens different. At this time, a cyan component transmitting filter 6 is inserted in the image forming light path of the lens 4 and a red component transmitting filter 7 is inserted in the image forming light path of the lens 5. Accordingly, focal length is not equal even if the same kind of lenses are used. Magnification of image forming is equalized by making the ratio of distances between the surface of original 1 and lenses 4, 5 equal to the ratio of power for cyan component to power for red component of each lens.
JP56054573A 1981-04-10 1981-04-10 Colored original reading device Pending JPS57170666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56054573A JPS57170666A (en) 1981-04-10 1981-04-10 Colored original reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56054573A JPS57170666A (en) 1981-04-10 1981-04-10 Colored original reading device

Publications (1)

Publication Number Publication Date
JPS57170666A true JPS57170666A (en) 1982-10-20

Family

ID=12974429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56054573A Pending JPS57170666A (en) 1981-04-10 1981-04-10 Colored original reading device

Country Status (1)

Country Link
JP (1) JPS57170666A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558357A (en) * 1982-06-23 1985-12-10 Canon Kabushiki Kaisha Color image reading method and apparatus
US4924302A (en) * 1987-09-18 1990-05-08 Fuji Photo Film Co., Ltd. CRT color video printer which eliminates magnification changes due to chromatic aberrations

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102614A (en) * 1976-02-25 1977-08-29 Ricoh Co Ltd Reading device for color facsimile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102614A (en) * 1976-02-25 1977-08-29 Ricoh Co Ltd Reading device for color facsimile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558357A (en) * 1982-06-23 1985-12-10 Canon Kabushiki Kaisha Color image reading method and apparatus
US4924302A (en) * 1987-09-18 1990-05-08 Fuji Photo Film Co., Ltd. CRT color video printer which eliminates magnification changes due to chromatic aberrations

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