A unit of measurement of the amount of brightness that comes from a light source. The standard lumen rating of a data projector is the average of photometer readings at several points on a full white image on the screen.
Technically, lumens measure "luminous flux." A wax candle generates 13 lumens; a 100 watt bulb generates 1,200. The lumen rating is a critical specification when choosing a data projector. In a darkened room, 500 lumens may be ample; however, in a conference room with normal lighting, 1,000 lumens would be better. In a room with bright daylight, 2,000 lumens is preferred.
Euro Display Srl - VAT Nr: IT06279920018 - R.E.A. Torino n. 775476 - Reg. Imp. Torino IT06279920018
©1998-2014 Euro Display Srl. All rights reserved. Last Update: 23/4/2014