DE308592C - - Google Patents

Info

Publication number
DE308592C
DE308592C DENDAT308592D DE308592DA DE308592C DE 308592 C DE308592 C DE 308592C DE NDAT308592 D DENDAT308592 D DE NDAT308592D DE 308592D A DE308592D A DE 308592DA DE 308592 C DE308592 C DE 308592C
Authority
DE
Germany
Prior art keywords
slot
film
shutter
images
flight
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.)
Active
Application number
DENDAT308592D
Other languages
German (de)
Publication of DE308592C publication Critical patent/DE308592C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B9/00Exposure-making shutters; Diaphragms
    • G03B9/08Shutters
    • G03B9/28Roller blind or flexible plate
    • G03B9/30Single blind with multiple slots or other aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Claims (1)

Für Geländeaufnahmen vom Flugzeug aus gemäß Patent 298086 kommt es darauf an, einen möglichst breiten Geländestreifen während eines Fluges zu photographieren. Die Objektive zeichnen jedoch bisher, zufolge der Anwendung|der am Objektiv^ vorbeischnellenden Schlitzbelichtung, Bilder auf^die an den beiden seitlichen Rändern lichtschwächer sind.For terrain surveys from the aircraft according to patent 298086, it is important photograph as wide a strip of terrain as possible during a flight. The lenses draw, however, up to now, according to the application | of the ones whizzing past the lens ^ Slit exposure, images on ^ which are fainter on the two lateral edges. Um den^bei Ausnutzung eines sehr großen Bildwinkels sich ergebenden Belichtungsunterschied für derartige Reihenbilder auszugleichen und BilderJrnit4 gleichmäßiger Lichtstärke der ganzen Bildfläche zu erzielen, wird gemäß der Erfindung derJ:Schlitz des unmittelbar 'vor der Platte oder dem Film ablaufenden Momentverschlusses nach außen nach den beiden Enden hin entsprechend erweitert.To compensate for the ^ when utilizing a very wide angle of view resulting difference in exposure for such a series of images and to achieve 4 uniform light intensity throughout the image area BilderJrnit, of the invention the J, according to: slot of the immediately 'in front of the plate or the film running torque closure outwardly by the two The ends are widened accordingly. Ein Ausführungsbeispiel ist durch die Zeichdargestellt, wobei angees sich um eine Rollfilm-One embodiment is illustrated by the drawings, wherein angees a roll film nung schematisch
nommen ist, daß
kamera handelt.
schematically
is assumed that
camera acts.
α bezeichnet den Film, & den Schlitzverschluß, und c den Schlitz, der in der Richtung nach beiden Seiten hin sich erweitert, also nicht mehr die normale, ,strichpunktiert angedeutete Gestalt eines langgezogenen Rechtecks aufweist. Mit ι ist die Bewegungsrichtung des Verschlusses, mit 2 die Flugrichtung, und mit 3 die Abrollrichtung des Films angedeutet. α denotes the film, & the slot shutter, and c the slot which widens in the direction towards both sides, i.e. no longer has the normal, dash-dotted shape of an elongated rectangle. The direction of movement of the shutter is indicated with ι, the direction of flight with 2, and the direction of unwinding of the film with 3. Paten τ-An sprtjch:Paten τ-An sprtjch: Schlitzverschluß für photographische Aufnahmen von Flugzeugen aus gemäß Patent 298086, dadurch ^gekennzeichnet, daß der Schlitz nach beiden Enden hin erweitert 3^ ist. , ■Focal plane shutter for photographic images from airplanes according to Patent 298 086 characterized in ^ that the slot by both ends extended through 3 ^. , ■ Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DENDAT308592D Active DE308592C (en)

Publications (1)

Publication Number Publication Date
DE308592C true DE308592C (en)

Family

ID=561829

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT308592D Active DE308592C (en)

Country Status (1)

Country Link
DE (1) DE308592C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456052A (en) * 1944-11-02 1948-12-14 Fairchild Camera Instr Co Curtain for focal plane shutters
DE1095653B (en) * 1953-04-28 1960-12-22 Charles Vinten Endless camera fastening tape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456052A (en) * 1944-11-02 1948-12-14 Fairchild Camera Instr Co Curtain for focal plane shutters
DE1095653B (en) * 1953-04-28 1960-12-22 Charles Vinten Endless camera fastening tape

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