Increasing dynamic range of cameras with Dynamic Sunlight Filter (DSF)

A. Donval, T. Fisher, D. Cheskis, Y. Ofir, M. Oron

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Todays battlefield is using imaging systems everywhere, starting from simple observation systems and up to very sophisticate warning and offensive systems. Cameras are integrated in almost all systems. Regulation and control of optical power in cameras presently requires an electronic feedback control or offline data processing, which introduces complex and expensive systems. We present a non-linear, solid-state passive dynamic sunlight filter (DSF) performing this process, yielding similar results - passively. When sunlight intensity increases, the DSF transmission decreases according to the amount of the incident lights, resulting in a darkened state, which is limited only to the over exposed area. The area returns to transparency once the amount of light decreases below a threshold level. We demonstrate here new experimental results showing an increase in the camera's dynamic range when using the DSF.

Original languageEnglish
Title of host publicationInfrared Technology and Applications XXXVII
StatePublished - 2011
Externally publishedYes
EventInfrared Technology and Applications XXXVII - Orlando, FL, United States
Duration: 25 Apr 201129 Apr 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceInfrared Technology and Applications XXXVII
Country/TerritoryUnited States
CityOrlando, FL


  • Anti-blooming
  • Camera
  • High dynamic range (HDR)
  • Regulating light
  • Sunlight filter


Dive into the research topics of 'Increasing dynamic range of cameras with Dynamic Sunlight Filter (DSF)'. Together they form a unique fingerprint.

Cite this