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Method for regulating or controlling ceiling lamp used for illuminating working region in room, involves dimming up direct light portion and subsequently indirect light portion of lamp during reducing radiation of foreign lights in region
Method for regulating or controlling ceiling lamp used for illuminating working region in room, involves dimming up direct light portion and subsequently indirect light portion of lamp during reducing radiation of foreign lights in region
The method involves dimming down an indirect light portion (Li) and subsequently a direct light portion (Ld) of a lamp (2) by a lamp control system (1) during increasing radiation of foreign lights (Ff) e.g. day lights, in a working region (A). The indirect light portion of light radiated by the lamp is dim down to an illuminance of zero or approximately zero. The direct light portion and subsequently indirect light portion of the lamp are dim up during reducing radiation of the foreign lights in the region. The direct light portion of the light is dim up to a preset upper border illuminance. An independent claim is also included for a light control system.
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