DK159088B - SCANNING TO DETECT AN ORIGINAL - Google Patents

SCANNING TO DETECT AN ORIGINAL Download PDF

Info

Publication number
DK159088B
DK159088B DK185088A DK185088A DK159088B DK 159088 B DK159088 B DK 159088B DK 185088 A DK185088 A DK 185088A DK 185088 A DK185088 A DK 185088A DK 159088 B DK159088 B DK 159088B
Authority
DK
Denmark
Prior art keywords
lens system
ccd unit
ccd
spindle
guide
Prior art date
Application number
DK185088A
Other languages
Danish (da)
Other versions
DK185088A (en
DK185088D0 (en
DK159088C (en
Inventor
Kaj O Nielsen
Original Assignee
Oce Helioprint As
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 Oce Helioprint As filed Critical Oce Helioprint As
Priority to DK185088A priority Critical patent/DK159088C/en
Publication of DK185088D0 publication Critical patent/DK185088D0/en
Priority to PCT/DK1989/000077 priority patent/WO1989010036A1/en
Priority to JP50408689A priority patent/JPH03503704A/en
Priority to EP19890904524 priority patent/EP0410992A1/en
Publication of DK185088A publication Critical patent/DK185088A/en
Publication of DK159088B publication Critical patent/DK159088B/en
Application granted granted Critical
Publication of DK159088C publication Critical patent/DK159088C/en

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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—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 flat picture-bearing surfaces
    • H04N1/1013—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 flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
    • H04N1/1021—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 flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components using a lead screw or worm
    • 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
    • H04N1/10—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 flat picture-bearing surfaces
    • H04N1/1013—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 flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
    • 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
    • H04N1/10—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 flat picture-bearing surfaces
    • H04N1/1013—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 flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
    • H04N1/1039—Movement of the main scanning components
    • H04N1/1043—Movement of the main scanning components of a sensor array
    • 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
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/393—Enlarging or reducing
    • 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
    • H04N1/191—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 one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
    • H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays

Landscapes

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

Description

iin

DK 159088BDK 159088B

Den foreliggende opfindelse omhandler en skanner til optisk af tastning af en original, nærmere betegnet en skanner, med hvilken det er muligt at ændre reproduktionsgraden for originalen ved aftastning.The present invention relates to a scanner for optically scanning an original, more particularly a scanner, with which it is possible to change the reproduction rate of the original upon scanning.

5 Der kendes skannere af forskellig art, og som typisk repræsentant for disse kan ses af det i EP-offentliggørelsesskrift nr. 173.099 beskrevne apparat, hvor en lineær CCD-enhed bevæges i en forskydelig linses fokuseringsplan for med variabelt reproduktionsfor-10 hold at aftaste det i fokuseringsplanet dannede billede af originalen.Scanners of various kinds are known, and can be seen as a typical representative of them by the apparatus disclosed in EP Publication No. 173,099, in which a linear CCD unit is moved in the focus plane of a displaceable lens to scan it with variable reproduction ratio. in the focus plane formed image of the original.

Dette offentliggørelsesskrift beskriver ikke nogen løsning på det væsentlige problem, der består i at få linsesystemet og CCD-enheden til, trods kurve- eller 15 linearitetsuregelmæssigheder i føringerne, at indtage den samme position i forhold til hinanden, således at skanneren altid vil kunne arbejde med optimal opløsningsevne .This publication does not disclose any solution to the major problem of causing the lens system and CCD unit to occupy the same position relative to each other, despite curve or linearity irregularities, so that the scanner will always be able to work with optimum resolution.

Det er formålet med den foreliggende opfindelse 20 at angive en skanner, hvor det er muligt frit at vælge reproduktionsforhold inden for et forudbestemt område uden linseskift og således, at skanneren altid arbejder på en sådan måde, at dens opløsningsevne udnyttes optimalt, og således at CCD-enheden og linsesystemet al-25 tid indtager den samme position i forhold til hinanden.It is the object of the present invention to provide a scanner where it is possible to freely select reproduction ratios within a predetermined range without lens switching and so that the scanner always operates in such a way that its resolving power is optimally utilized and so that CCD the unit and the lens system always occupy the same position relative to each other.

Dette formål opnås ifølge den foreliggende opfindelse ved at udforme skannerens føringer, som det er angivet i krav l's kendetegende del. ved at opbygge skanneren som her angivet, bliver det muligt med ét 30 linsesystem at opnå et stort reproduktionsforholdsområde samtidig med, at skannerens opløsningsevne bibeholdes .This object is achieved according to the present invention by designing the scanner guides as set forth in the characterizing part of claim 1. By constructing the scanner as set forth herein, it is possible with one lens system to achieve a large range of reproduction while maintaining the resolution of the scanner.

Ved at udforme det mekaniske system som angivet i krav 2's kendetegnende del, bliver vandringerne for i 35 det mindste den anden spindel meget kort, og herved reduceres indstillingstiden væsentligt.By designing the mechanical system as set forth in the characterizing part of claim 2, the travel of at least the second spindle becomes very short, thereby greatly reducing the adjustment time.

DK 15 9 O 8 8 BDK 15 9 O 8 8 B

22

Opfindelsen skal nu beskrives nærmere med henvisning- til tegningen, der viser et perspektivisk billede af skanneren ifølge den foreliggende opfindelse.The invention will now be described in more detail with reference to the drawing which shows a perspective view of the scanner of the present invention.

Tegningen viser de væsentligste dele af skanne-5 ren, der hovedsageligt består af et originalbord 1, en første bevægelig del 2 og en anden bevægelig del 3. Den bevægelige del 2 er indrettet til at bevæge sig vinkelret på originalbordet 1, og styres i denne bevægelse af føringen 4 og drives i denne bevægelse 10 af en motor 5, der trækker en spindel 6. Spindelen 6 er i indgreb med en møtrik, der er fastgjort på delen 2. Denne møtrik er ikke vist på figuren.The drawing shows the main parts of the scanner, consisting mainly of an original table 1, a first movable portion 2 and a second movable portion 3. The movable portion 2 is arranged to move perpendicular to the original table 1 and is controlled therein. movement of the guide 4 and driven in this movement 10 by a motor 5 pulling a spindle 6. The spindle 6 engages a nut attached to the part 2. This nut is not shown in the figure.

Delen 3 kan ligeledes- bevæges i retning vinkelret på originalbordet 1, styret af føringen 4, 15 drevet af en motor 7, der er fastgjort på delen 2.The part 3 can also be moved in a direction perpendicular to the original table 1, guided by the guide 4, 15 driven by a motor 7 fixed on the part 2.

Denne motor 7 driver en spindel 8, der er i indgreb med en mø-trik 9, der er fastgjort på delen 3.This motor 7 drives a spindle 8 which engages a nut 9 attached to the part 3.

Delen 3 bærer et objektiv 10, der tjener til at fokusere et billede af en på originalbordet 1 anbragt 20 original 11 på en CCD-enhed 12, der indgår i et CCD-modul Γ3, der er fastgjort til delen 2. Dette CCD-modul vil blive beskrevet nærmere nedenfor.The part 3 carries a lens 10 which serves to focus an image of an original 20 placed on the original table 1 on a CCD unit 12 included in a CCD module Γ3 attached to the part 2. This CCD module will be described in more detail below.

Som det fremgår af ovenstående, kan delene 2 og 3 bevæges i en retning vinkelret på originalbordet 25 1. Denne bevægelse styres af en fælles føring 4, og bevægelserne frembringes af motorerne 5 og 7. Da der altid ønskes en fokusering af den på originalbordet 1 anbragte original . 11 på· CCD-enheden 12 uanset reproduktionsforholdet, skal der altid være et forud-30 bestemt forhold mellem afstandene mellem enheden 3 og originalbordet 1 og enheden 3 og enheden 2. Dette udnyttes· ifølge den foreliggende opfindelse, idet de midler, 7, 8, 9, der tjener til at bestemme afstanden mellem enheden 2 og 3 er fastgjort til enheden 2.As can be seen from the above, the parts 2 and 3 can be moved in a direction perpendicular to the original table 25 1. This movement is controlled by a common guide 4 and the movements are produced by the motors 5 and 7. Since it is always desired to focus it on the original table 1 placed original. 11 on the CCD unit 12 regardless of the reproduction ratio, there must always be a predetermined ratio between the distances between the unit 3 and the original table 1 and the unit 3 and the unit 2. This is utilized according to the present invention, the means 7, 8 , 9, which serves to determine the distance between the unit 2 and 3 is attached to the unit 2.

35 Herved opnås det, at motoren 7 kan gøres væsentligt mindre end motoren 5, og dermed billigere, samtidig35 It is thus achieved that the motor 7 can be made substantially smaller than the motor 5, and thus cheaper, at the same time.

Claims (2)

3 DK 159088 B med at spindelen 8 også bliver kort, og derved kan givne nøjagtighedskrav overholdes. CCD-modulet 13 omfatter, som det fremgår, en CCD-enhed 12, en motor 14, en spindel 15 og fø-5 ringsmidler 16. Motoren 14 tjener til, ved hjælp af spindelen 15, at forskyde CCD-enheden 12 i objektivet 10's fokuseringsplan, hvorved det er muligt at aftaste billedet af originalen 11. Det kredsløbskort 17, på hvilket CCD-enheden 12 er fastgjort, bærer 10 også kredsløb til forbehandling af signalerne fra CCD-.enheden. Motorerne 5, 7 og 14 er alle såkaldte steppermotorer, og ved at udnytte disse motorers velkendte egenskaber, er det muligt at positionere de enkelte de-15 le i forhold til hinanden, ved at tælle antallet af drivimpulser, der tilføres motorerne. Ved at lade delene 2 og 3 styres af en fælles føring 4, der som vist kan omfatte to lodretstillede parallelle H-profiler 18,19, hvis mod hinanden venden-20 de indvendige spor 20,21 tjener som føringsspor for den ene del, fx enheden 3, medens de fra hinanden bortvendende udvendige spor 22,23 tjener som føringsspor for den anden del, fx enheden 2, opnås at de til de respektive enheder 2,3 hørende føringselementer, 25 fx hjulene 24,25, kan placeres i nogenlunde samme højde på føringerne, og dermed den fordel, at de to dele følges ad, hvis der er små kurve- eller linearitetsuregelmæssigheder i føringerne 4. Derved sikres det, at objektivet 10 og CCD-enheden 12 altid indta-30 ger den samme position i forhold til hinanden.3 DK 159088 B with the spindle 8 also becoming short, and thus given accuracy requirements can be complied with. The CCD module 13 comprises, as will be seen, a CCD unit 12, a motor 14, a spindle 15 and guide means 16. The motor 14 serves, by means of the spindle 15, to displace the CCD unit 12 in the lens 10 focusing plane, whereby it is possible to scan the image of the original 11. The circuit board 17 to which the CCD unit 12 is attached also carries circuitry for pre-processing the signals from the CCD unit. The motors 5, 7 and 14 are all so-called stepper motors, and by utilizing the well-known characteristics of these motors, it is possible to position the individual parts relative to each other by counting the number of drive pulses supplied to the motors. By allowing the parts 2 and 3 to be guided by a common guide 4, which as shown may comprise two vertical parallel H-profiles 18,19, the facing 20 of which face the inner grooves 20,21 serving as a guide groove for one part, e.g. the unit 3, while the distant outer grooves 22,23 serve as guide grooves for the second part, e.g. height of the guides, and thus the advantage that the two parts are followed if there are slight curve or linearity irregularities in the guides 4. This ensures that the lens 10 and the CCD unit 12 always occupy the same position in relation to to each other. 1. Skanner til aftastning af en original, hvil-35 ken skanner omfatter et originalbord (1), et linsesystem (10) og et CCD-element (12), hvilken skanner er af DK 159088B 4 den art, hvor aftastningen fremkommer ved at bevæge CCD-elementet (12) i linsesystemets fokuseringsplan, vinkelret på linsesystemets længdeakse, hvori linsesystemet (10) og CCD-enheden (12) i afhængighed af hinan-5 den, bevæges langs linsesystemets (10) længdeakse til opnåelse af forskellige reproduktionsforhold, således at CCD-enhedens (12) lysfølsomme areal forbliver i linsesystemets (10) fokuseringsplan uafhængigt af det valgte reproduktionsforhold, kendetegnet 10 ved, at CCD-enhedens (12) og linsesystemets (10) forskydning langs linsesystemets (10) længdeakse kontrolleres af en fælles føring {4), hvilken fælles føring (4) omfatter separate føringsspor (20-23) for CCD-enheden (12) og linsesystemet (10), og at føringsele-15 mentter (24, 25) hørende til henholdsvis CCD-enheden (12) og linsesystemet (10) er placeret i det væsentlige i samme niveau i de separate føringsspor (20-23).A scanner for scanning an original, the scanner comprising an original table (1), a lens system (10) and a CCD element (12), which scanner is of the kind in which the scanning is obtained by: moving the CCD element (12) in the focus plane of the lens system, perpendicular to the longitudinal axis of the lens system, wherein the lens system (10) and the CCD unit (12), depending on each other, are moved along the longitudinal axis of the lens system (10) to obtain different reproduction ratios, thus the light-sensitive area of the CCD unit (12) remains in the focus plane of the lens system (10) independently of the selected reproduction ratio, characterized in that the displacement of the CCD unit (12) and the lens system (10) along the longitudinal axis of the lens system (10) is controlled by a common guide. (4), the common guide (4) comprising separate guide grooves (20-23) for the CCD unit (12) and the lens system (10), and the guide elements (24, 25) of the CCD unit (12), respectively ) and lens cyst the gauge (10) is located substantially at the same level in the separate guide grooves (20-23). 2. Skanner ifølge krav 1, kendetegnet ved, at CCD-enhedens (12) forskydning langs linsesyste-20 mets (10) længdeakse styres af en første spindel (6), der er fast i forhold til originalbordet (1), og at linsesystemets (10) forskydning langs linsesystemets (10) længdeakse styres af en anden spindel (8), der er fastgjort til CCD-enheden (12).Scanner according to claim 1, characterized in that the displacement of the CCD unit (12) along the longitudinal axis of the lens system (10) is controlled by a first spindle (6) fixed relative to the original table (1) and the lens system (10) displacement along the longitudinal axis of the lens system (10) is controlled by a second spindle (8) attached to the CCD unit (12).
DK185088A 1988-04-06 1988-04-06 SCANNING TO DETECT AN ORIGINAL DK159088C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK185088A DK159088C (en) 1988-04-06 1988-04-06 SCANNING TO DETECT AN ORIGINAL
PCT/DK1989/000077 WO1989010036A1 (en) 1988-04-06 1989-04-06 Scanner for scanning an original document
JP50408689A JPH03503704A (en) 1988-04-06 1989-04-06 Scanner for document scanning
EP19890904524 EP0410992A1 (en) 1988-04-06 1989-04-06 Scanner for scanning an original document

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK185088A DK159088C (en) 1988-04-06 1988-04-06 SCANNING TO DETECT AN ORIGINAL
DK185088 1988-04-06

Publications (4)

Publication Number Publication Date
DK185088D0 DK185088D0 (en) 1988-04-06
DK185088A DK185088A (en) 1989-10-07
DK159088B true DK159088B (en) 1990-08-27
DK159088C DK159088C (en) 1991-01-28

Family

ID=8108532

Family Applications (1)

Application Number Title Priority Date Filing Date
DK185088A DK159088C (en) 1988-04-06 1988-04-06 SCANNING TO DETECT AN ORIGINAL

Country Status (4)

Country Link
EP (1) EP0410992A1 (en)
JP (1) JPH03503704A (en)
DK (1) DK159088C (en)
WO (1) WO1989010036A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922512A1 (en) * 1989-07-08 1991-01-17 Kodak Ag DEVICE FOR CONVERTING LIGHT SIGNALS TO VIDEO SIGNALS
AU685728B1 (en) * 1997-05-19 1998-01-22 Umax Data Systems Inc. Auto-focus mechanism
DE10211760A1 (en) * 2002-03-14 2003-10-02 Werth Messtechnik Gmbh Arrangement and method for measuring geometries or structures of essentially two-dimensional objects by means of image processing sensors
AU2012222833B2 (en) 2011-03-03 2017-03-16 Zymeworks Inc. Multivalent heteromultimer scaffold design and constructs
JP6498601B2 (en) 2012-07-13 2019-04-10 ザイムワークス，インコーポレイテッド Multivalent heteromultimeric scaffold designs and constructs
AU2014262566A1 (en) 2013-05-08 2015-11-12 Zymeworks Inc. Bispecific HER2 and HER3 antigen binding constructs
CA2874083C (en) 2014-12-05 2024-01-02 Universite Laval Tdp-43-binding polypeptides useful for the treatment of neurodegenerative diseases

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH658325A5 (en) * 1982-01-21 1986-10-31 Rudolf Boehme Enlarger WITH STEADY FOCUSING ON MODIFICATION OF SCREEN SIZE BY ONE, ON A bridge circuit and an amplifier, CONTROLLED LENS.
EP0112403B1 (en) * 1982-12-24 1987-06-03 Ibm Deutschland Gmbh Opto-electronic scanning apparatus
SE446922B (en) * 1983-07-04 1986-10-13 Hasselblad Ab Victor PROCEDURE AND DEVICE FOR CONVERTING IMAGE AND FIGURE INFORMATION TO ELECTRICAL
JPS6157176A (en) * 1984-08-29 1986-03-24 Dainippon Screen Mfg Co Ltd Magnification variable control method

Also Published As

Publication number Publication date
DK185088A (en) 1989-10-07
EP0410992A1 (en) 1991-02-06
DK185088D0 (en) 1988-04-06
JPH03503704A (en) 1991-08-15
WO1989010036A1 (en) 1989-10-19
DK159088C (en) 1991-01-28

Similar Documents

Publication Publication Date Title
US4696062A (en) Fiber optic switching system and method
JP2518866B2 (en) Raster input scanning device calibration apparatus and method
JP3291906B2 (en) Scanning optical device
US5616909A (en) Method and apparatus for maintaining a scanning optical path length within a predetermined range
US5627670A (en) Scanning optical apparatus having beam scan controller
US5283681A (en) Scanning optical equipment
CA1086116A (en) Zoom lens
DK159088B (en) SCANNING TO DETECT AN ORIGINAL
US5286961A (en) Bar code reader producing two groups of vertical scan lines and two groups of inclined scan lines on a plane normal to the read window
US6330020B1 (en) Multiple light beam scanning optical system
EP0288970A2 (en) Optical system for flyingspot scanning system
US5845019A (en) Image reader
US4609818A (en) Opto-electronic scanning apparatus with rotary plate scanning element
US5268711A (en) Ophthalmoscope
US4794427A (en) Image scanning apparatus
JPS6041283B2 (en) Fine interval positioning device in information retrieval equipment
EP0458334B1 (en) Bar code reading apparatus
US6111666A (en) Image reading device
US6233067B1 (en) Method of and apparatus for reading image by flatbed scanning
GB2160668A (en) Focal position adjusting device for small variable magnification type copying machine with zoom lens
US4127779A (en) Device for photogrammetric evaluation of stereo-couples of photographs
JPS62209966A (en) Focus adjustment system
JPH0553059A (en) Confocal scanning microscope
CN110794653B (en) Automatic laser lens focal length alignment system and method based on digital circuit control
CN1145020C (en) Optical path converter