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Proceedings Paper

Diffraction and photometric limits in today's miniature digital camera systems
Author(s): Andreas Brückner; Michael Schöberl
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Paper Abstract

Image sensors for digital cameras are built with ever decreasing pixel sizes. The size of the pixels seems to be limited by technology only. However, there are also hard theoretical limits for classical miniature camera systems: During a certain exposure time only a certain number of photons will reach the sensor. The resulting shot noise thus limits the signal-to-noise ratio. On the other hand, diffraction sets another limit for image resolution in case that there is enough brightness in the scene. In this work we show that current sensors are already surprisingly close to these limits.

Paper Details

Date Published: 13 March 2013
PDF: 17 pages
Proc. SPIE 8616, MOEMS and Miniaturized Systems XII, 861617 (13 March 2013); doi: 10.1117/12.2003819
Show Author Affiliations
Andreas Brückner, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Michael Schöberl, Fraunhofer-Institut für Integrierte Schaltungen (Germany)

Published in SPIE Proceedings Vol. 8616:
MOEMS and Miniaturized Systems XII
Wibool Piyawattanametha; Yong-Hwa Park, Editor(s)

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