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Fotios, S. and Cheal, C. (2009) Obstacle detection: A pilot study investigating the effects of lamp type, illuminance and age. Lighting Research and Technology, 41 (4). 321 - 342. ISSN 1477-1535
Abstract
A novel apparatus was used to examine the effect of light source, illuminance and observer’s age on the ability to detect obstacles in peripheral vision, simulating a raised paving slab under mesopic visual conditions. The data collected were used to determine the height of obstacles above the paving surface required for 50% detection. From these detection heights it was determined that: (1) obstacle detection was influenced by illuminance, the 50% detection height being lower at 20 lux than at 0.2 lux, (2) the young observers (<45 years old) showed the smaller 50% detection height at 0.2 lux, but at 20 lux there was no difference in obstacle detection height between the younger and older (>60 years old) age groups, and (3) obstacle detection was affected by lamp type at 0.2 lux, with the 50% detection height decreasing as lamp S/P ratio increased, but at 2.0 and 20 lux there was no significant difference between the three test lamps.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2009 The Chartered Institution of Building Services Eng. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | MESOPIC LIGHT LEVELS; SYSTEM; PHOTOMETRY; MODEL |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > School of Architecture (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 31 Oct 2014 12:08 |
Last Modified: | 23 Jun 2023 21:42 |
Published Version: | http://dx.doi.org/10.1177/1477153509102343 |
Status: | Published |
Publisher: | Sage |
Refereed: | Yes |
Identification Number: | 10.1177/1477153509102343 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81119 |
Available Versions of this Item
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Obstacle detection: A pilot study investigating the effects of lamp type, illuminance and age. (deposited 05 Dec 2013 09:38)
- Obstacle detection: A pilot study investigating the effects of lamp type, illuminance and age. (deposited 31 Oct 2014 12:08) [Currently Displayed]