Optical in-situ analysis of secondary reflectors in solar tower plants

A. Timinger*, T. Smith, M. Walther, W. Spirkl, A. Kribus, H. Ries, P. Doron

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


An optical measurement for radiation concentrators is proposed. A Lambertian light source is placed in the exit aperture of the concentrator. By taking pictures of the concentrator as seen from a remote location one gets the transmission patterns which carry the information of transmission with the four-dimensional resolution of the phase space of geometric optics. By matching ray tracing simulations to the measurement, one can achieve detailed and accurate information about the geometry of the concentrator. The reflectivity can be inferred by very simple means with 2% accuracy. This method has the potential to provide a handy tool to get automatically all optical information about a real size concentrator in situ.

Original languageEnglish
Pages (from-to)Pr3-117 - Pr3-122
JournalJournal De Physique. IV : JP
Issue number3
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1998 9th SolarPaces International Symposium on Solar Thermal Concentrating Technologies,STCT 9 - Font-Romeu
Duration: 22 Jun 199826 Jun 1998


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