ATA577679A - Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative - Google Patents

Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative

Info

Publication number
ATA577679A
ATA577679A AT577679A AT577679A ATA577679A AT A577679 A ATA577679 A AT A577679A AT 577679 A AT577679 A AT 577679A AT 577679 A AT577679 A AT 577679A AT A577679 A ATA577679 A AT A577679A
Authority
AT
Austria
Prior art keywords
microfilm
punch
determining
optical density
recording camera
Prior art date
Application number
AT577679A
Other languages
English (en)
Other versions
AT368304B (de
Original Assignee
Welp Entwicklungs Kg Dr
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 Welp Entwicklungs Kg Dr filed Critical Welp Entwicklungs Kg Dr
Priority to AT0577679A priority Critical patent/AT368304B/de
Priority to DE19803001977 priority patent/DE3001977A1/de
Priority to DE19808001396 priority patent/DE8001396U1/de
Priority to FR8018576A priority patent/FR2469738A1/fr
Priority to GB8027904A priority patent/GB2060916A/en
Publication of ATA577679A publication Critical patent/ATA577679A/de
Application granted granted Critical
Publication of AT368304B publication Critical patent/AT368304B/de

Links

Classifications

    • 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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/74—Positioning exposure meters in the apparatus
    • 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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/725—Optical projection devices wherein the contrast is controlled electrically (e.g. cathode ray tube masking)

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
AT0577679A 1979-08-29 1979-08-29 Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative AT368304B (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT0577679A AT368304B (de) 1979-08-29 1979-08-29 Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative
DE19803001977 DE3001977A1 (de) 1979-08-29 1980-01-21 Mikrofilm-lochkartenkamera
DE19808001396 DE8001396U1 (de) 1979-08-29 1980-01-21 Mikrofilm-lochkartenkamera
FR8018576A FR2469738A1 (fr) 1979-08-29 1980-08-27 Camera pour microfilms destinee a des cartes a fenetre
GB8027904A GB2060916A (en) 1979-08-29 1980-08-28 Adjusting optical density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0577679A AT368304B (de) 1979-08-29 1979-08-29 Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative

Publications (2)

Publication Number Publication Date
ATA577679A true ATA577679A (de) 1982-01-15
AT368304B AT368304B (de) 1982-10-11

Family

ID=3579489

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0577679A AT368304B (de) 1979-08-29 1979-08-29 Mikrofilm-lochkarten-aufnahmekamera und verfahren zum ermitteln der optischen dichte der in mikrofilm-lochkarten enthaltenen negative

Country Status (2)

Country Link
AT (1) AT368304B (de)
DE (2) DE3001977A1 (de)

Also Published As

Publication number Publication date
AT368304B (de) 1982-10-11
DE8001396U1 (de) 1980-05-14
DE3001977A1 (de) 1981-03-26

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee