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CIE 232:2019 Discomfort Caused by Glare from Luminaires with a Non-Uniform Source Luminancestandard by Commission Internationale de L'Eclairage, 06/01/2019 |
| Format | Language | Price | Avaliablity |
|---|---|---|---|
| Secure PDF | English | € 108.00 EUR | Immediate Download |
| Printed Edition | English | € 108.00 EUR | Ships in 1-2 business days |
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
In 1995 the CIE Technical Committee 3-13 developed the Unified Glare Rating (UGR) to predict discomfort glare for indoor lighting systems. For practical reasons, the UGR is based on the average source luminance. The introduction of LEDs in general lighting enabled many new luminaire designs, sometimes with unprecedented high luminance contrasts. The literature review presented in this report shows that UGR tends to underestimate the discomfort provoked by such luminaires with highly non-uniform source luminance. Several UGR correction methods are evaluated by comparison to experimental data on experienced discomfort from uniform and non-uniform light sources. The preferred method involves a precise definition of the glare source area based on a luminance image of the source. This method solves the discrepancies between UGR and perceived glare from non-uniform light sources. To guide future work on glare prediction methods, the remaining shortcomings of UGR are briefly reviewed.
Product Details
Published:06/01/2019
ISBN(s):9783902842152
Number of Pages:41
File Size:1 file , 2.3MB