Abstract
This paper provides an overview about the visibility condition in an auditorium of Universitas Negeri Manado. As a place used for holding official meetings and numerous formal activities, it requires proportional light distribution. An experimental simulation about lighting system in auditorium is carried out based on data analysis using AutoCAD and Dialux. The simulation resulted paucity of light intensity and bleak radiance distribution which, based on Indonesian national standards, is noncompliance. Several methods of lighting adjustment are proposed: enlargement of exposure by replacing and setting glass material proportional to the incoming sunlight, adjustment of reflectance equipment in the vicinity, applying lightselves and setting light spots. Enlarging exposure and adjusting reflectance equipment permits 15% larger comfort area for user, based on DIALux simulation. Adjusting the use of solar control glass and lightselves at the aperture will reduce ablaze of light by up to 20%. Using LED reliably light offers magnificent brightness and providential low voltage.
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