Technical Reports and Guides

CIE 233:2019

Calibration, Characterization and Use of Array Spectroradiometers

standard by Commission Internationale de L'Eclairage, 06/01/2019

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Secure PDF English € 162.00 EUR Immediate Download
Printed Edition English € 162.00 EUR Ships in 1-2 business days
Printed Edition + PDF English € 206.60 EUR Immediate Download

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

Array spectroradiometers are used pervasively in light measurement. However, their properties are not widely understood by users. CIE 233:2019 seeks to educate users in the characteristics of array spectroradiometers that are important to obtaining accurate measurement results. Moreover, performance indices are proposed that will enable users to rank instruments according to the properties that affect their applications. In many cases, if the array spectroradiometer is properly characterized, correction can be made to measurements that will improve the accuracy. Details of the nature and use of these corrections are given. Calibration procedures and uncertainties are discussed for various common quantities, giving a sound foundation to measurements. Background information, underlying the discussions, is found in the annexes and references.

Product Details

Published:06/01/2019

ISBN(s):9783902842756

Number of Pages:103

File Size:1 file , 4.7MB





 

CIE 232:2019

Discomfort Caused by Glare from Luminaires with a Non-Uniform Source Luminance

standard by Commission Internationale de L'Eclairage, 06/01/2019

FormatLanguagePriceAvaliablity
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





 

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