由于全世界都在为能源成本和与能源生产相关的环境后果而烦恼，人们对照明所消耗的能源表示了担忧。CIE在70年前构思的传统照明测量——光度测量——在照明工程实践中得到了很好的应用。然而，它们不足以描述光感的所有方面。CIE委员会正在根据全球研究活动制定额外的照明措施。研讨会的目的是突出这项工作，并提出今后的努力方向。阅读了八篇特邀论文，回顾了当前光度系统的缺点，并描述了在获得有意义的光度测量领域的最新研究。等效亮度的概念被证明是亮度感觉等效的有力描述，也可以用来评估其他视觉现象。 研讨会参与者制定了进一步研究的指导方针，并建议建立一个报告机构，就最严格的开放性问题向CIE提供建议。该出版物包含10篇受邀论文和12篇投稿论文，共170多页。

With the entire world troubled with both the cost of energy and environmental consequences related to energy production, concerns have been expressed regarding energy consumed by lighting. Traditional lighting measures - photometry - as conceived 70 years ago by CIE, are well anchored in illuminatin gengineering practice. They are, however, not adequate to describe all aspects of light sensation. CIE committees are working on additional lighting measures based on global research activities.The aim of the symposium was to bring this work into focus and propose future directions for efforts.Eight Invited Papers were read, reviewing shortcomings of the present photometric system and describing the most up-to-date research in the field of getting meaningful photometric measurements. The concept of equivalent luminance turned out to be a powerful descriptor of brightness sensation equivalent that could be used also to evaluate other visual phenomena. The symposium participants formulated guidelines for further research and recommended the establishment of a reportership to advise CIE on the most stringent open questions.The publication contains 10 Invited Papers and 12 Contributed Papers on over 170 pages.