Description

This CIE Symposium was held in the Auditorio Municipal of León, Spain on 21 May 2005, as a satellite meeting of the CIE Midterm Meeting and the International Lighting Congress: Lighting in the XXI Century. The present volume contains the text of the 13 papers read at the meeting.

The first paper by Prof. Halonen summarizes the findings of a European consortium that had as its task to develop a model based on different task performance experiments. Details of these experiments are contained in three subsequent papers.

Dr. Sagawa's paper showed progress in the other area of mesopic photometry based on brightness matching, and presents the outlines of a supplementary system of photometry.

Professor Berman's paper discusses some fundamental problems mesopic lighting and vision research is faced with, due to the non-linearity and non-additivity of visual perception in the mesopic range.

A further group of papers lead by the invited paper by Professor Rea discusses the US version of a task performance based mesopic photometry. Several other papers discuss application items based on one or the other new mesopic model.

CIE is progressing to define a task performance based photometric system, and anybody who is interested in the fundamental visual mechanism of mesopic vision, or would like to know in which direction the street lighting most probably will move, and which measuring instruments will be needed to evaluate mesopic lighting systems, should read the papers presented at this meeting.

The proceedings is written in English, with a short summary in French and German, consists of 70 pages with 31 figures and 9 tables.

Description

27-29 May 2009, Budapest, Hungary

In May 2009 the Light and Lighting Conference took place in conjunction with the CIE Midterm Meeting. The conference dealt with all aspects of light and lighting, with special emphasis on LEDs and Solid State Lighting, covering vision and health as well as the measurement of these modern devices and their application.

From the large number of oral and poster presentations in the scientific program of the conference 24 papers were selected by CIE experts for this CIE publication. These selected papers cover the whole range of the conference topics, i.e. latest achievements obtained in light and lighting, their consequences in photometry and colorimetry, their health aspects, and applications, both indoor and outdoor.