TY - JOUR T1 - Obstacle detection: A pilot study investigating the effects of lamp type, illuminance and age JO - LIGHTING RES TECHNOL PY - 2009/09/02 AU - Fotios S AU - Cheal C ED - DO - DOI: 10.1177/1477153509102343 VL - 41 IS - 4 SP - 321 EP - 342 Y2 - 2025/11/15 ER -