描述了CIE光度测量辅助系统，该系统根据任何级别的比较亮度关系来评估灯光。该系统引入了等效亮度的概念来描述光或物体在任何水平（包括中间层）的亮度。该系统开发了一个光度模型，通过使用现有光度和色度量的三个分量（明视亮度，L，暗视亮度，L？）和色度对亮度的贡献，c，即亮度与亮度比（B/L））计算与亮度相关的等效亮度，其组合中的一些权重因子取决于适应水平。文中还介绍了该系统的使用和计算实例。附录中给出了用实验亮度匹配数据测试系统的结果。 该出版物以英文写成，并附有法文和德文的简短摘要。共21页，5图1表

The CIE Supplementary System of Photometry, which evaluates lights in terms of comparative brightness relationship at any level, is described. The system introduces the concept of equivalent luminance to describe brightness of a light or an object at any level including mesopic levels. The system develops a photometric model to calculate brightness-related equivalent luminance by using three components of existing photometric and colorimetric quantities (photopic luminance, L, scotopic luminance, L?, and chromatic contribution to brightness, c, i.e. brightness-to-luminance ratio (B/L)) with some weighting factors in their combinations that depend on the adaptation level. The use of the system and an example of calculation are also described. Results of testing the system with experimental brightness matching data are given in an appendix.The publication is written in English, with a short summary in French and German. It consists of 21 pages with 5 figures and 1 table