Electric lamp and discharge devices: systems – Plural load device systems
Patent
1998-10-27
2000-09-12
Wong, Don
Electric lamp and discharge devices: systems
Plural load device systems
315294, 315318, 315316, 315324, 362233, H05B13700
Patent
active
061182311
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates to a system and a control device and to a use of the system for controlling the brightness of a room illuminated by a plurality of light sources or a plurality of groups of light sources.
DESCRIPTION OF THE RELATED ART
More recent lighting systems operate with a plurality of different light sources, in particular direct and indirect light sources. Previously the light sources, such as for example lamps or light fittings, could be dimmed or switched only independently of one another. Consequently it was not possible, or possible only with great difficulty, for example to change the ratio between direct and indirect light and at the same time to keep the overall brightness constant.
In practice a light management system of the Applicant is already known which, in the form of an "intelligent" light control system, can individually create different lighting moods in a room and at the same time take into account the prevailing incoming daylight. This system has been described for example in the scientific article "Light Management Brings Numerous Advantages" by C. Tropp in "etz", Vol. 113, 1992, no. 2, p. 84-87 and in the scientific article "Integrated Light Management Provides Optimal Use of Energy" in "Licht", Vol. 7-8,/1995, p. 578-580.
In the case of the known light management system of the Applicant, the user can activate, switch on and off, and dim individual lights and groups of lights, i.e. create his own lighting moods, via an infrared remote control device or an operating device. By the depression of pushbuttons a plurality of stored lighting moods can be called up in accordance with different office activities. The data transmission to the individual lights and groups of lights is effected by a bus system based on modern two-wire control technology.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a system and a control device for controlling the brightness of a room with extended adjustment facilities for the user, which permits the coupling of the different light sources or groups of light sources so that the light intensities of the individual light sources or groups of light sources can be controlled adapted to one another in accordance with the user settings, i.e. the user need only set parameters of the overall system and not however the parameters of each individual light source.
This object is achieved by a system and control device for controlling the brightness of a room illuminated by a plurality of light sources or a plurality of groups of light sources, wherein the ratio of the light intensities of the individual light sources or groups of light sources can be set or changed and additionally the overall brightness of the room can be set or changed while maintaining a constant ratio of the light intensities of the individual light sources or groups of light sources.
A possible application of the system according to the invention consists in its use in a light fitting comprising at least two separately actuatable lighting means, where one lighting means serves for the direct lighting of the room and a further lighting means serves for the indirect lighting of the room.
Further developments and embodiments of the invention are described in the further detail herein.
BRIEF DESCRIPTION OF THE DRAWINGS
The construction and mode of functioning of an exemplary embodiment of the invention will now be explained making reference to the drawing wherein:
FIG. 1 schematically illustrates an exemplary embodiment of the system according to the invention;
FIG. 2 is a block circuit diagram of a simplified system according to FIG. 1;
FIGS. 3a, b show two diagrams in explanation of the logic relationship between the control values of the control device and the brightness;
FIGS. 4a, b illustrate two diagrams in explanation of the mode of functioning of the system according to the invention and
FIG. 5 is a flow diagram in explanation of the mode of functioning of the system according to the inventio
REFERENCES:
patent: 4772825 (1988-09-01), Tabor et al.
patent: 5010459 (1991-04-01), Taylor et al.
patent: 5254908 (1993-10-01), Alt et al.
patent: 5406176 (1995-04-01), Sugden
patent: 5530322 (1996-06-01), Ference et al.
patent: 5648656 (1997-07-01), Begemann et al.
patent: 5714808 (1998-02-01), Ansel et al.
Clemens Troop, "Lichtmanagement bringt zahlreiche Vorteile", ("Light Management Brings Numerous Advantages") , etz, vol. 113, 1992, No. 2, pp. 84-87.
"Integriertes Lichtmanagement bringt optimalen Energieeinsatz", (Integrated Light Management Provides Optimal Use of Energy) LICHT, 7-8, 1995, pp. 578-580.
Geiginger Joachim
Heim Armin
Jahn Gerhard
Lee Wilson
Wong Don
Zumtobel Staff GmbH
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