Patent Application
20120007509
The present invention relates to a luminaire having at least one LED, a solar module, an accumulator, an electronic charger coupled between the solar module and the accumulator, and a drive circuit coupled to the accumulator, for the at least one LED, a fastening device that is configured to fasten the luminaire at an operating location, and an LED holding device that is configured to hold the at least one LED.
Known from the prior art are generic luminaires having at least one LED that are, for example, used to mark paths, as floating luminaires and as garden luminaires. In this case, the LED holding device is configured in one piece with the fastening device or is connected thereto in a fixed position.
The object of the present invention consists in developing a generic luminaire in such a way that further options for use are opened up thereby.
This object is achieved by a luminaire having the features of patent claim 1.
The present invention is based on the finding that this object can be achieved when there is coupled between the fastening device and the LED holding device a position varying device that is configured to vary the position of the at least one LED in relation to the fastening device. It is thereby possible, for example, to even out drilling inaccuracies when a plurality of inventive luminaires are wall mounted, in order to enable a cooperation of the multiplicity of luminaires for the display of patterns, plays of color or documents. Since each luminaire has a separate fastening device, mounting inaccuracies that disrupt the overall impression can be corrected by expanding around an inventive position varying device.
It is preferred for the position varying device to be configured to undertake a translational and/or a rotational variation in the position of the at least one LED in relation to the fastening device. Consequently, it is possible to correct the position of the at least one LED in all directions in a plane.
The luminaire preferably further has a receiver that is coupled to the accumulator and is configured to receive a radio signal, and a processing device that is coupled to the accumulator and the receiver and is configured to form at least one drive signal for the drive circuit from the data received with the radio signal. As a result, it becomes possible to drive an inventive luminaire by radio, for example for the purpose of switching the at least one LED on and off.
In accordance with one preferred embodiment, the position varying device has a first element that is coupled to the fastening device, and a second element that is coupled to the LED holding device. In this case, the first element preferably has a splined shaft profile, and the second element has a splined hub profile, or vice versa. Furthermore, it is preferred when the splined shaft profile constitutes a toothed wheel and the splined hub profile constitutes a gear ring.
It can be provided that the first element and the second element are configured to be assembled by a user at different relative positions from one another. A user can therefore undertake to position the at least one LED in relation to the fastening device. It is particularly preferred, however, when the luminaire further has an electric motor, preferably a stepping motor, that is coupled to the accumulator and is configured to vary the position of the first element in relation to the second element, or vice versa. It is particularly preferred for the luminaire to include a microcontroller which is coupled to the receiver and enables the electric motor to be driven by a radio signal.
In accordance with one preferred development, the luminaire further has an anti-theft protection that is configured to fix the first element and the second element in a mutually connected state, the anti-theft protection including an actuating device for detaching and attaching the anti-theft protection, which can be operated via a tool that is specific to a stipulated anti-theft protection, in particular is unique. It is thereby possible to attach a multiplicity of inventive luminaires in the open without having to worry about them being taken without permission.
It can be possible to rotate the first element in relation to the second element via a rotational axis, it being possible for the at least one LED to be positioned centrally or eccentrically in relation to the rotational axis.
In order to produce interesting optical phenomena, the second element and/or the LED holding device can have at least one wind wheel. Particularly in conjunction with a previously mentioned eccentric mounting of the at least one LED in relation to a rotational axis, it is possible thereby to produce interesting, novel effects.
Further advantageous embodiments follow from the subclaims.
An exemplary embodiment of an inventive luminaire is described below in more detail with reference to the attached drawings, in which:
Instead of initiating a rotation via radio signal and the electric motor 26, it is directly possible in the case of one embodiment without electric motor for the toothed wheel 14 to be plugged in a desired position through the gear ring 16 and fixed there by means of the anti-theft protection 32.
The electronics in block 18 can be configured to receive via a radio signal a succession of light sequences and associated positions of the LED 20, to store this in a storage device, and to execute it in response to a specific signal.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/EP07/58292 | 8/10/2007 | WO | 00 | 2/9/2010 |
