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VISUAL CLARITY AND BRIGHTNESS IN INDOOR AND OUTDOOR LIGHTING: EXPERIMENTS AND MODELLING

Bodrogi, Peter Zsolt and Khanh, Tran Quoc :
VISUAL CLARITY AND BRIGHTNESS IN INDOOR AND OUTDOOR LIGHTING: EXPERIMENTS AND MODELLING.
In: CIE 2017 Midterm Meeting, 21. - 28. Oktober 2017, Jeju, South Korea.
[Conference or Workshop Item] , (2017)

Abstract

In various indoor and outdoor lighting applications, a wide range of illuminance levels and correlated colour temperatures can be found. This results in very different levels of perceived visual clarity and spatial brightness impressions. These visual attributes are important to assure the acceptance and comfort of the lighting installation and for good visual performance. In the present paper, new descriptor quantities are defined for visual clarity (C) and brightness (B) combining numeric descriptors of the rod, cone and ipRGC signals computed from the spectrum. The quantities C and B were derived by re-analysing the results of two previous psychophysical experiments, one on photopic visual clarity and one on mesopic brightness.

Item Type: Conference or Workshop Item
Erschienen: 2017
Creators: Bodrogi, Peter Zsolt and Khanh, Tran Quoc
Title: VISUAL CLARITY AND BRIGHTNESS IN INDOOR AND OUTDOOR LIGHTING: EXPERIMENTS AND MODELLING
Language: English
Abstract:

In various indoor and outdoor lighting applications, a wide range of illuminance levels and correlated colour temperatures can be found. This results in very different levels of perceived visual clarity and spatial brightness impressions. These visual attributes are important to assure the acceptance and comfort of the lighting installation and for good visual performance. In the present paper, new descriptor quantities are defined for visual clarity (C) and brightness (B) combining numeric descriptors of the rod, cone and ipRGC signals computed from the spectrum. The quantities C and B were derived by re-analysing the results of two previous psychophysical experiments, one on photopic visual clarity and one on mesopic brightness.

Uncontrolled Keywords: Visual Clarity, Mesopic Brightness, Photoreceptor Signals, ipRGC signal, Modelling
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Light Technology
Event Title: CIE 2017 Midterm Meeting
Event Location: Jeju, South Korea
Event Dates: 21. - 28. Oktober 2017
Date Deposited: 05 Mar 2018 15:00
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