Tridonic Gmbh Co. Kg

Markus Künzli

Roger Kistler

Eduardo Pereira

John Schönberger

Frank Horn

Huang Pengcheng

Thomas Kuch

Hans Schlumpf

The present invention relates to a luminaire (), comprising a housing () having a diffusion panel () as light emission surface, comprising at least one illuminant () which is arranged within the housing () such that it is set up to emit light through the diffusion panel () to the area outside of the housing (), and comprising at least two light sensors (S, S) arranged within the housing (), the light sensors being set up to detect light. The at least two light sensors (S, S) have different detection regions (B, B) within the housing () and are set up to detect light (E) which enters through the diffusion panel () into the housing interior from the area outside of the housing (), wherein, on account of the different detection regions (B, B), one of the at least two light sensors (S, S) detects light (E) that was emitted by the at least one illuminant () and reflected from at least one wall of the housing interior. The invention further relates to a lighting system having at least one such luminaire and to a method for detecting the ambient light of such a luminaire.

Ambient light detection by means of two light sensors arranged within a luminaire

The invention relates to a signaling device () for use in a DALI system () with a DALI bus (B), wherein, according to the DALI standard, an upper voltage value range (DH) is established for the bus voltage of the DALI bus (B) for transmitting a high-level DALI signal via the DALI bus, and the bus voltage of the DALI bus (B) lies within the upper voltage value range (DH) in the idle state, wherein the signaling device () is configured for being connected to the DALI bus (B) of the DALI system (), and wherein, in the connected state, the signaling device () is configured to change the bus voltage of the DALI bus to a predetermined voltage value (U) within the upper voltage value range (DH) in the idle state. The invention also relates to a DALI device () for use in a DALI system () with a DALI bus (B), which is configured for registering the above-mentioned signaling using the signaling device () according to the invention.

Extended signaling capacity in a DALI system

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Clarus, Switzerland

Markus Künzli