LED lighting device

Abstract

The invention relates to a high-power LED lighting device which is portable and ultra-light, comprising: a light (2) comprising a carbon board (21) to the outer face of which at least one high-power LED (23) plate (22) is attached; a tripod (3) formed from carbon to which the light can be coupled; and a power supply source (4) that can be connected to the light (2) and is housed in a carbon box.

Claims

1. An LED lighting device (1), comprising: a light (2) including a carbon board (21) having an outer face; at least one high-power LED (23) plate (22) attached to the outer face of the carbon board (21); a tripod (3) formed from carbon to which the light (2) can be coupled; and a power supply source (4) that can be connected to the light (2) and that is housed in a carbon box.

2. An LED lighting device (1) according to claim 1, wherein the at least one LED (23) plate (22) comprises twenty-eight LEDs (23).

3. An LED lighting device (1) according to claim 1, wherein the at least one LED (23) plate (22) comprises a plurality of LEDs (23), and wherein the LEDs (23) have a beam angle equal to or greater than 140°.

4. An LED lighting device (1) according to claim 1, wherein the at least one LED (23) plate (22) is attached to the carbon board (21) such that there is a space between the at least one LED (23) plate (22) and the carbon board (21) for air circulation.

5. An LED lighting device (1) according to claim 1, wherein an inner face of the at least one LED (23) plate (22) has a heat dissipation structure made of aluminum.

6. An LED lighting device (1) according to claim 1, wherein the carbon board (21) comprises rods (24) protruding from its outer face and provided with a magnet to enable coupling of color filters.

7. An LED lighting device (1) according to claim 1, wherein the carbon board (21) comprises slots (25) through which a hand-tightening Velcro strip (26) is provided for coupling the light (2) to the tripod (3).

8. An LED lighting device (1) according to claim 1, wherein an inner face of the carbon board (21) comprises an anti-slip zone configured to strengthen coupling of the light (2) to the tripod (3).

9. An LED lighting device (1) according to claim 1, wherein the power supply source (4) is adjustable to enable controlling a voltage applied to the at least one LED (23) plate (22).

10. An LED lighting device (1) according to claim 1, wherein the light (2) comprises a first light (2), the LED lighting device (1) further comprising a second light (2), a third light (2), and a fourth light (2).

11. An LED lighting device (1) according to claim 10, wherein each of the first light (2), the second light (2), the third light (2), and the fourth light (2) includes a respective said carbon board (21) attached to a respective said two LED (23) plates.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0021] FIG. 1 shows a perspective rear view of a particular example LED lighting device of the present invention.

[0022] FIG. 2 shows a front perspective view of the LED lighting device of FIG. 1.

[0023] FIGS. 3a and 3b show respectively a plan view and an elevation view of a light provided with two LED plates.

[0024] FIG. 4 shows a perspective view of a power supply.

PREFERRED EMBODIMENT OF THE INVENTION

[0025] A particular example of LED lighting device (1) according to the present invention will be now described with reference to the accompanying figures. As shown in FIGS. 1 and 2, the device (1) basically comprises one or more lights (2), in this case four, attached to a tripod (3) and powered by a power supply source (4).

[0026] FIGS. 3a and 3b show an example of light (2) in more detail so as to appreciate the different parts that compose it. Specifically, the light (2) in FIG. 2 is formed by a pure twill matte carbon plate (21) to which two plates (22) each having 28 LEDs (23), are attached. The attaching between the plates (22) and the plate (21) is carried out by means of 4 nylon supports and anti-locking nuts, leaving a space between the plates (22) and the plate (21) to allow the passage of air. In addition, each plate (22) has on its rear face an aluminum structure designed for the dissipation of the heat emitted by the LEDs (23) during their operation. LEDs (23) are 1 W of power. The total power of each plate (22) will then be 28 w, and the total power of each light (2) will be 56 w. The LED diodes (23) are chosen with a high beam angle, for example 140°. Each plate (22) has on its rear face a small power connector (not shown) to allow a rapid replacement if necessary.

[0027] The lights (2) also have four nylon rods (24) attached to the corners of the carbon board (21) by anti-locking nuts and having at their free end neodymium magnets inserted under pressure in the metric gap. Thereby, color filters (not shown) can be affixed to the lights (2) by means of small staples and/or magnets at their ends.

[0028] Each light (2) has a first female XT60 connector attached to the back face of the plate (21) for connection to the power supply source (4). Suitable electrical conductors distribute the received current in parallel between the two LED (23) plates (23) and exits again through a second female XT60 connector also attached to the rear face of the plate (21).

[0029] The tripod (3), which is formed by carbon tubes replacing conventional aluminum tubes, comprises a base formed by three tubes supporting a vertical mast to which the lights (2) are attached. For attaching the lights (2) to the mast of the tripod (3), the plate (21) has a series of through slots (25) in its central area through which a hand-tightening Velcro strip (26) passes. This Velcro strip (26) is wound around the mast of tripod (2) and tightened tightly. To prevent the lights (2) from sliding down by gravity, the center of the rear face of the plate (21) has an anti-slip zone (not shown) which, when pressed against the mast of tripod (3), prevents the sliding of the light (2).

[0030] In short, this design allows obtaining small compact lights (2) with very small dimensions (approximately 20×15×25 cm). At the same time, they are light and robust, since the carbon is lighter than the aluminum and more resistant than the steel to equal dimensions. Its approximate weight is 270 grams per light (2). In terms of light output, they can output up to 1600 Lux at 1 meter distance (5040 Lumens).

[0031] In relation to the power supply source (4), shown in FIG. 4, it is a 240 W regulated indoor power supply source housed inside a 2-mm pure twill carbon fiber box. As shown in FIG. 4, the power supply source (4) has a power switch, a status LED, a wheel for controlling the supplied current, and a display showing the current supplied at each moment. A standard AC plug with ground protection is used for connection to the mains and two female XT60 connectors for the current output to the lights (2).

[0032] The approximate dimensions of the power supply source (4) are 20×11×6 cm, and its weight is approximately 1148 grams. It is dimensioned to supply a power for up to 4 lights (2) as described previously, connected in parallel. Alternatively, it would be possible to accommodate in the carbon fiber box a power supply source (4) with a power of 480 w, which would allow powering 8 of such lights (2) with a single power supply source (4).

[0033] For the interconnection wiring of the lights (2), 18AWG silicone cable has been used, especially for its flexibility and high resistance, the ends of which have male XT60 connectors to avoid possible mistakes when connecting them to the lights (2) and the power supply source (4).

[0034] In short, the entire device (1) is highly maneuverable, compact and lightweight. Two devices (1) such as those shown in the accompanying figures comprise, in total, 8 lights (2), two tripods (3), 2 power supplies (4), several filters and 40 meters of cable. All these elements fit in an aluminum case of 45×33×15 cm, with a final weight of approximately 6 kg. These two devices (1) are capable of generating a light intensity of 12800 lux at 1 meter distance.