Description

The CIE and other organizations have conducted international comparisons of measurements of the spectral power distribution of light sources, including fluorescent tubes. In these comparisons, some unexpectedly large differences were found between the results reported by different laboratories. CIE specialists concluded that before further large-scale international comparisons of measurements are organized, a method (or a few basic methods) should be agreed upon that would result in better accuracy and, hence, closer agreement between the measurements of participating laboratories. International agreement on such methods would also serve as a guide in setting up new spectroradiometric laboratories. 

The first part of the report covers, in a general way, the use of a spectroradiometer for measuring the spectral power distribution of light sources, with particular reference to the determination of photometric and colorimetric properties. 

The second part relates to the measurement of individual lamp types, particularly tubular fluorescent lamps. The report is designed to assist workers in industrial standards laboratories, but is not intended for use as a textbook. 

The report consists of 61 pages and 8 figures.

Description

The report covers the problems of, and the approach to solutions for, daylighting and electric lighting of indoor and outdoor swimming pools. The main emphasis is on rectangular pools designed for recreational swimming, as well as training and competition pools. Private pools for special uses and private or public leisure pools are not covered specifically. However, many of the general principles and recommendations are applicable for these areas as well. The report also includes information on the special problems posed by color television coverage of outdoor and indoor swimming events. The wide variety of lighting techniques used is dictated by the structure of the buildings; the balance of daylight and electric lighting; and economic as well as practical considerations, such as installation and maintenance. The lighting designer must, in close collaboration with the architect, devise individual solution that meet the performance requirements proposed in this report for each and every project. 

The publication contains 20 pages, 6 figures and 2 tables.