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Author Bullough, J.D.; Skinner, N.P.; Plummer, T.T. url  doi
openurl 
  Title Assessment of an Adaptive Driving Beam Headlighting System: Visibility and Glare Type Journal Article
  Year 2016 Publication Transportation Research Record: Journal of the Transportation Research Board Abbreviated Journal Transportation Research Record: Journal of the Transportation Research Board  
  Volume 2555 Issue Pages 81-85  
  Keywords Lighting  
  Abstract Recent developments in solid-state lighting, sensor, and control technologies make new configurations for vehicle forward lighting feasible. Adaptive driving beam (ADB) systems build on systems that automatically switch from high- to low-beam headlights in the presence of oncoming vehicles. ADB systems can detect oncoming headlights and preceding taillights and reduce their intensity only in the direction of the other lights, while they maintain higher levels of illumination throughout the remainder of the field of view. The nominal benefit of ADB systems is the provision of high-beam levels of illumination in the forward scene, while glare is reduced to oncoming and preceding drivers, who perceive low-beam illumination levels. In this study, two dynamic field experiments were conducted: one experiment measured the ability of observers to identify the walking direction of roadside pedestrian targets with and without the use of the ADB system; the other experiment evaluated the discomfort glare elicited by the ADB system compared with the glare from conventional low- and high-beam headlights. The findings from both experiments were consistent with previous analytical and static field tests and suggested that ADB systems can offer safety benefits beyond those offered by conventional headlight systems.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0361-1981 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1618  
Permanent link to this record
 

 
Author Valentová, M.; Quicheron, M.; Bertoldi, P. url  doi
openurl 
  Title LED Projects and Economic Test Cases in Europe Type Journal Article
  Year 2015 Publication International Journal of Green Energy Abbreviated Journal International Journal of Green Energy  
  Volume 12 Issue 8 Pages 843-851  
  Keywords Economics; Lighting  
  Abstract Solid-State Lighting (SSL) is a fast evolving, promising energy-efficient technology, offering a wide range of potential uses. The article presents the status of the existing light emitting diode (LED) pilot actions in Europe, analyzing 106 LED test cases from 17 European countries. Projects from the public and commercial sectors form the focus of this article, with special attention devoted to the economics of LED projects – particularly in terms of energy savings. The results of the test cases demonstrate wide variation. Installations offer energy savings of 59% on average (savings range from 10% to more than 90%). In many applications, LEDs are competitive (with payback time ranging from two to 10 years), yet a large number of projects are still in the trial phase. From the test cases reviewed, the most successful applications are, in terms of savings and economic considerations, replacement of both (1) incandescent light bulbs in traffic light systems, and (2) halogen spotlights in indoor applications. The LED projects bring many co-benefits, including lower maintenance costs, improved lighting characteristics, or improved ambience. Some challenges remain to be addressed, such as to improve the quality characteristics of LEDs and the quality of information and data provided by manufacturers/suppliers, and optimality of LED technology for existing street lighting systems.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1543-5075 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1631  
Permanent link to this record
 

 
Author Shih, K.-T.; Liu, J.-S.; Shyu, F.; Yeh, S.-L.; Chen, H.H. url  doi
openurl 
  Title Blocking harmful blue light while preserving image color appearance Type Journal Article
  Year 2016 Publication ACM Transactions on Graphics Abbreviated Journal Tog  
  Volume 35 Issue 6 Pages 1-10  
  Keywords Lighting; Vision  
  Abstract Recent study in vision science has shown that blue light in a certain frequency band affects human circadian rhythm and impairs our health. Although applying a light blocker to an image display can block the harmful blue light, it inevitably makes an image look like an aged photo. In this paper, we show that it is possible to reduce harmful blue light while preserving the blue appearance of an image. Moreover, we optimize the spectral transmittance profile of blue light blocker based on psychophysical data and develop a color compensation algorithm to minimize color distortion. A prototype using notch filters is built as a proof of concept.  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0730-0301 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1640  
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Author Price, L.L.A.; Lyachev, A.; Khazova, M. url  openurl
  Title Optical performance characterization of light-logging actigraphy dosimeters Type Journal Article
  Year 2017 Publication Journal of the Optical Society of America. A, Optics, Image Science, and Vision Abbreviated Journal J Opt Soc Am A Opt Image Sci Vis  
  Volume 34 Issue 4 Pages 545-557  
  Keywords Human Health, Lighting  
  Abstract There are several wearable products specially developed or marketed for studying sleep, circadian rhythms, and light levels. However, new recommendations relating to human physiological responses to light have changed what measurements researchers may demand. The performances of 11 light-logging dosimeters from eight manufacturers were compared. The directional and spectral sensitivities, linearity, dynamic range, and resolution were tested for seven models, and compared along with other published data. The sample mainly comprised light-logging actigraphy dosimeters wearable as badges, in accordance with measurement protocols for larger-scale field studies. A proposed standard for optical performance assessments is set out.  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1084-7529 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28375324 Approved no  
  Call Number SU @ spitschan @ Serial 1649  
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Author Galatanu, C.D. url  doi
openurl 
  Title Study of Facades with Diffuse Asymmetrical Reflectance to Reduce Light Pollution Type Journal Article
  Year 2017 Publication Energy Procedia Abbreviated Journal Energy Procedia  
  Volume 112 Issue Pages 296-305  
  Keywords Lighting  
  Abstract  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1876-6102 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1651  
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