FR2443020B1 - - Google Patents

Info

Publication number
FR2443020B1
FR2443020B1 FR7833528A FR7833528A FR2443020B1 FR 2443020 B1 FR2443020 B1 FR 2443020B1 FR 7833528 A FR7833528 A FR 7833528A FR 7833528 A FR7833528 A FR 7833528A FR 2443020 B1 FR2443020 B1 FR 2443020B1
Authority
FR
France
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.)
Expired
Application number
FR7833528A
Other languages
French (fr)
Other versions
FR2443020A1 (en
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7833528A priority Critical patent/FR2443020A1/en
Publication of FR2443020A1 publication Critical patent/FR2443020A1/en
Application granted granted Critical
Publication of FR2443020B1 publication Critical patent/FR2443020B1/fr
Granted 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/0285—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array in combination with at least one reflector which is in fixed relation to the light source
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
    • 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/0287—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array using a tubular lamp or a combination of such lamps
    • 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Scanning Arrangements (AREA)
FR7833528A 1978-11-28 1978-11-28 Uniformly illuminating linear light source - has diaphragm or reflector shaped to compensate end effects of fluorescent tube Granted FR2443020A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7833528A FR2443020A1 (en) 1978-11-28 1978-11-28 Uniformly illuminating linear light source - has diaphragm or reflector shaped to compensate end effects of fluorescent tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833528A FR2443020A1 (en) 1978-11-28 1978-11-28 Uniformly illuminating linear light source - has diaphragm or reflector shaped to compensate end effects of fluorescent tube

Publications (2)

Publication Number Publication Date
FR2443020A1 FR2443020A1 (en) 1980-06-27
FR2443020B1 true FR2443020B1 (en) 1981-10-30

Family

ID=9215435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833528A Granted FR2443020A1 (en) 1978-11-28 1978-11-28 Uniformly illuminating linear light source - has diaphragm or reflector shaped to compensate end effects of fluorescent tube

Country Status (1)

Country Link
FR (1) FR2443020A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413903A (en) * 1982-03-15 1983-11-08 Xerox Corporation Document illumination system
DE3313186A1 (en) * 1983-04-12 1984-10-25 Computer Gesellschaft Konstanz Mbh, 7750 Konstanz LIGHTING DEVICE FOR AN ELECTROOPTIC SCANNER
EP0264300B1 (en) * 1986-07-08 1992-09-09 Noritsu Koki Co., Ltd. Light source assembly for use with an electrophotographic copying apparatus
JP2785274B2 (en) * 1988-07-07 1998-08-13 ソニー株式会社 Color image reader
FR2640399B1 (en) * 1988-12-09 1991-09-27 Alcatel Business Systems ILLUMINATION CORRECTION DEVICE FOR DOCUMENT ANALYZER
US5632547A (en) * 1995-09-19 1997-05-27 Ncr Corporation Device for correcting brightness roll-off at an end of a lamp
US5973815A (en) * 1998-01-13 1999-10-26 Hewlett-Packard Company Scanner carriage lamp reflector and method of using same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1097439A (en) * 1954-03-29 1955-07-05 Verrerie Scient Improvements to machines for reproducing plans

Also Published As

Publication number Publication date
FR2443020A1 (en) 1980-06-27

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Legal Events

Date Code Title Description
ST Notification of lapse