Glare must not be caused by lamps or luminaires (direct glare) nor by reflections of high luminance values on glossy surfaces (reflected glare). In special cases, e.g. when lighting entrance halls or festive spaces, higher and stimulating luminance values and increased contrast to the surroundings can be desirable as long as the light sources serve primarily as decorative elements. In order to avoid mistakes, fatigue and accidents, it is important to limit glare. At indoor workstations, psychological glare can be caused either directly by bright luminaires or by windows. As long as the limits for psychological glare are observed, there is usually no significant physiological glare either.
Glare must not be caused by lamps or luminaires (direct glare) nor by reflections of high luminance values on glossy surfaces (reflected glare). In special cases, e.g. when lighting entrance halls or festive spaces, higher and stimulating luminance values and increased contrast to the surroundings can be desirable as long as the light sources serve primarily as decorative elements. In order to avoid mistakes, fatigue and accidents, it is important to limit glare. At indoor workstations, psychological glare can be caused either directly by bright luminaires or by windows. As long as the limits for psychological glare are observed, there is usually no significant physiological glare either.
