Erco guide

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Guide Lighting technology | Luminaire technology | Colour mixing Varychrome

Introduction

The addition of the name ‚varychrome‘ to ERCO luminaires identifies those luminairs whose colour can be changed dynamically. These luminaires are electroni­cally controlled to generate variable light colours by additive colour mixing of the primary colours red, green and blue (RGB technology). They enable an infinitely variable adjustment of different light colours. The advantages of colour mixing using coloured lamps are that complex mechanical components are not needed and colour filters with low transmission are avoided. The term ‚varychrome‘ refers to the mixing of colours. It is derived from the Latin adjective ‚varius‘ meaning different and the Greek word ‚chroma‘ for colour.

Technology

In principle, the colours of the fluorescent lamps can be chosen at will. A multitude of colours can be mixed from the coloured fluorescent lamps in red, green and blue. The saturation and the chromaticity location of the lamps determine the size and shape of the resulting colour triangle. The lamps in warm white, neutral white and daylight white can ­create various different white light colours. The fluorescent lamps primarily produce diffuse light with low brilliance.

Fluorescent lamps

The luminaires with LEDs feature a high colour density, which therefore results in a large colour triangles. Characteristic for LEDs are low luminous flux, compact dimensions and long service life.

LED

Edition: 03/01/2010 | Updated version at www.erco.com

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