Measurement of diffusion of retroreflectors & ref. standards

Project Description

Measurements at IEN of the photometric characteristics of retroreflectors are presently carried out in the visible range at the distances and observation angles which are requested by the norms in different fields (automobile, traffic, security, etc.). The collaboration project foresees a comparison between the techniques in use in the European laboratories. As a further point for collaboration IEN can supply calibrated retroreflectors in different colours to be used as reference standards.

Final Report 2018-01-22

There was no activity since 2003; therefore it was decided to close the project.

Progress report submitted in May 2003 advising of no action. Progress report available as of March 2003.

Photometry and Radiometry (PR)
Coordinating Institute
INRIM (Italy)
Participating Partners
NPL (United Kingdom)