High-speed photometer for measuring light intensity distributions

Code of Practice for Road Lighting BS 5489 Parts 1, 2 and 3 (1987 onwards)

Greenhill J.E. and Simons R.H. Testing Luminaires Lighting Res. Technol. 3(3) 190 (1971)

Bean A.R. and Simons R.H. Lighting fittings perfomance and design (Oxford : Pergamon) (1968)

BS5225:1975 Specification for photometric data for luminaires: Part 1: Photometric measurements (London: British Standards Institutions) (1975)