上列價格為CIE國際定價，向CIE-Taiwan訂購可享折扣優惠，CIE-Taiwan會員更享有會員優惠價，歡迎來電03-5743875或e-mail : cie_taiwan@itri.org.tw 洽詢。

Full Description

CIE 236:2019 concerns lighting for roads where pedestrians are the primary road user. Lighting guides recommend certain criteria for design such as target illuminances. The bases of these recommendations are, however, largely unstated or were not published in international magazines and got lost. The aim of this report is therefore to provide a summary of credible, empirical evidence of the effects of changes in lighting on the visual impressions and visual performance of pedestrians, as a basis for future revisions to design standards.

The publication is written in English, with a short summary in French and German.

Product Details

Published:12/12/2019

ISBN(s):9783902842626

Number of Pages:49

File Size:1 file , 1.9MB

Many regional standards and regulations require a manufacturer of directional light sources to publish the beam angle (or beam angles for non-symmetrical sources) and centre beam luminous intensity of their products as well as derived data such as the useful luminous flux or zonal lumen values. However, these data are calculated from the optical beam axis and therefore their determination requires a precise, repeatable and unambiguous method of identifying the optical beam axis of a light source.[more]