NDLI: Lighting for projector use in school classrooms to improve visibility

Content Provider	IEEE Xplore Digital Library
Author	Sheng Peng Yawen Chen Xiaodan Tang Heynderickx, I.
Copyright Year	2014
Description	Author affiliation: Philips Res. Labs., Eindhoven Tech. Univ., Eindhoven, Netherlands (Heynderickx, I.) \|\| Philips Res. China, Shanghai, China (Sheng Peng; Yawen Chen; Xiaodan Tang)
Abstract	Projectors have become very popular in school classrooms in China. However traditional lighting design does not consider lighting influence on the visibility of projection screen. The aim of this study was to investigate the current lighting conditions in classrooms when watching a projection screen, and then to search for lighting conditions providing better visibility. A survey was carried out to collect desk illuminance, projection screen luminance and contrast from eight schools in four cities in China. Based on the survey, an experiment was designed and performed with three ambient illumination conditions (i.e., 0lux, 300lux, daylight), five different projection screen luminance levels (i.e., 50, 100, 150, 200, 260 $cd/m^{2}),$ and five seating positions. The results indicate that the ambient illumination, the projection screen luminance, and the seating position all have a significant influence on the visibility of gratings on the projection.
Starting Page	9
Ending Page	13
File Size	9015041
Page Count	5
File Format	PDF
ISBN	9781479966967
e-ISBN	9781479966974
DOI	10.1109/SSLCHINA.2014.7127209
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Lighting Position measurement Cities and towns Fluorescence Frequency measurement Gratings
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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