Publikation:

Diaphragm value recognition

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Datum

2012

Autor:innen

Kranz, Gerhard
Zielberg, Oliver
Lies, Ulrich

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Internationale Patentnummer

US8269882B2

Angaben zur Forschungsförderung

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Open Access-Veröffentlichung

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Mathematik und Statistik: Publikationen
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Patent
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Published

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Zusammenfassung

A method for determining the current camera aperture (work ing aperture) of lenses on digital cameras having a viewfinder eyepiece and internal exposure measurement through the lens is wherein a further external exposure measurement is carried out past the lens and the value of the working aperture is determined from a reference table stored in the digital camera from the difference ABV between the two measured exposure values BV (int) and BV (ext). A digital camera suitable for carrying out the method wherein outside the region covered by the lens tube, the housing of the digital camera has an additional window for a further exposure meter with an upstream optics that is directed onto the Subject and serves to restrict the shooting angle, and includes a memory for a reference table for determining the aperture value.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
510 Mathematik

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ISO 690KRANZ, Gerhard, Oliver ZIELBERG, Ulrich LIES, Robert DENK, 2012. Diaphragm value recognition
BibTex
@misc{Kranz2012Diaph-55530,
  year={2012},
  title={Diaphragm value recognition},
  url={https://patents.google.com/patent/US8269882B2/en},
  author={Kranz, Gerhard and Zielberg, Oliver and Lies, Ulrich and Denk, Robert}
}
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    <dcterms:abstract xml:lang="eng">A method for determining the current camera aperture (work ing aperture) of lenses on digital cameras having a viewfinder eyepiece and internal exposure measurement through the lens is wherein a further external exposure measurement is carried out past the lens and the value of the working aperture is determined from a reference table stored in the digital camera from the difference ABV between the two measured exposure values BV (int) and BV (ext). A digital camera suitable for carrying out the method wherein outside the region covered by the lens tube, the housing of the digital camera has an additional window for a further exposure meter with an upstream optics that is directed onto the Subject and serves to restrict the shooting angle, and includes a memory for a reference table for determining the aperture value.</dcterms:abstract>
    <dc:creator>Lies, Ulrich</dc:creator>
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Interner Vermerk

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Kontakt
URL der Originalveröffentl.
https://patents.google.com/patent/US8269882B2/en

Prüfdatum der URL

2021-11-10

Prüfungsdatum der Dissertation

Finanzierungsart

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