ITTV20100070A1 - ROTATION SYSTEM FOR LUMINOUS FLOW CONVEYOR WITH REFERENCE FEET. - Google Patents

Description

DESCRIPTION OF INDUSTRIAL INVENTION Title: System for modifying the inclination of the axis of the light beam produced by an LED.

The present application relates to a system for modifying the inclination of the axis of the light beam produced by an LED according to multiple values and by means of suitable rotation of a luminous flux conveyor with an inclined axis with respect to the luminous axis of the LED.

Nowadays, the problem is felt of being able to illuminate streets, parking lots, urban areas and even interiors and exteriors of residential, work, commercial, sports, recreational buildings, using LED systems in such a way as to have an illuminated surface. as uniform as possible, with adequate luminous intensity and in line with regulations.

LED lighting, although it offers the possibility of an important containment in energy consumption and in the durability of the LEDs themselves, much higher than the other technologies of greater use on the market, on the other hand it presents a problem given by the geometric characteristics of the beam. luminous produced by that device.

In fact, the angle of emission of this light beam normally takes on very low values and this makes this type of light tending to a point light, otherwise known as a spot effect. This determines, for lighting devices equipped with LEDs only and without lenses or optics placed in front of the LED itself, the impossibility of illuminating sufficiently large surfaces in a homogeneous way.

To partially obviate this problem, it is known to use light flux conveyors, in transparent plastic material, preferentially in the shape of a truncated cone and with a geometric and optical axis coaxial to that of the LED itself or inclined by a certain angle with respect to aN axis of the aforementioned LED. With these flux conveyors, opening the light beam, an increase in the emission angle of the light produced by the LED is achieved, thus distributing the light over a larger surface.

However, these flow conveyors have a major limitation given by the fact that it is in any case impossible to adequately illuminate sufficiently large and decentralized surfaces only by using these types of devices; this however large may be the opening angle of the truncated cones that make up the geometry of the flow conveyors themselves. In fact, even by considerably increasing the cone opening angle, the light output on the ground that would be obtained by doing so would end up being very low especially at the edges of the illuminated parts and therefore further away from the source. bright. This low brightness would then be completely insufficient and inadequate to allow the luminous device to comply with the requirements of the street and urban lighting regulations.

With these types of flux conveyors, as per known techniques, the luminous flux is deflected by a determined fixed and non-modifiable angle.

This characteristic leads to the need, during the design phase, to determine exactly and in a non-modifiable way the desired angles of deflection of the light in order to achieve adequate illumination of the target as required by the regulations. Since these flow conveyors are obtained mostly by injection molding, it is clear that for each mathematically determined angle of inclination, it is necessary to create a specific flow conveyor and therefore a specific injection mold or in any case suitable equipment.

It is therefore often forced to limit the number of molds and thus the number of flow conveyors to be produced, but in this way it is no longer possible to illuminate optimally and it is difficult to respect the reference values provided for by the regulations in force. . In fact, to remedy this, it would be necessary to be able to vary the aforementioned angle of inclination of the flow of light produced by the LED continuously according to multiple, almost infinite positions.

Otherwise, and to confirm the above, in order to have the many necessary inclinations of the luminous fluxes, it would be necessary to create a mold for each of the many inclinations identified, naturally with a great waste of money and time.

It should also be said that the known types of fixed vertical or inclined axis flux conveyors do not allow the carrying out of those small but very useful adjustments of the inclinations of the luminous fluxes produced by the various LEDs once the optics have been mounted on the electronic board. Since these are fixed axis flux conveyors, the same cannot in fact be modified to obtain those indispensable calibrations regarding the correct inclination of the luminous fluxes produced by the various LEDs mounted on the board.

Another big problem in LED lighting systems with known types of flux conveyors is that the end user is not given the possibility to change the inclination of the luminous flux to make it more suitable for their lighting needs. This is because all the systems mentioned and not part of this invention, after being mounted on the electronic board, do not allow any further modification of the inclination of the luminous axis of the light produced by each LED. In this way, any possibility for the end user to modify the inclination of the axis of the light coming from each LED is precluded.

There are also patents filed which deal with devices with LEDs but which fall outside the scope of the present invention and which therefore cannot be considered as prior art.

A case of this type is given by patent no. EP 2 039 990 A1 of 25 March 2009 which is not relevant to the subject of the present invention since the rotation of the device indicated in different positions thanks to the presence of the pegs, does not lead to the result of changing the inclination of the axis of the luminous flux, since the rotating device is not an inclined axis flux conveyor

A further case of this type is given by patent no. US 2005/0024744 A1 of February 3, 2005 which is not relevant to the subject of the present invention since the indicated device, not having an inclined optical axis, is not able to modify the inclination of the axis of the luminous flux produced by the LED, and all the more reason to do it in more positions and therefore obtaining more inclinations of the luminous flux axis. The indicated device is only able to open the light beam but this is beyond the scope of the present invention.

A further case of this type is given by patent no. . WO 2004/070839 A2 of 19 August 2004 which is not relevant to the object of the present invention since the indicated device, not having an inclined optical axis, is not able to modify the inclination of the axis of the luminous flux produced by the LED, nor even more so to do it in more positions and therefore obtaining more inclinations detracted from the luminous flux. The indicated device is only able to open the light beam but this is beyond the scope of the present invention.

A further case of this type is given by patent no. DE 20 2006 018081 U1 of 8 February 2007 which is not relevant to the subject of the present invention since the indicated device, not having an inclined optical axis, is not able to modify the inclination of the 'axis of the luminous flux produced by the LED, nor even more so to do it in more positions and therefore obtaining more inclinations of the luminous flux axis

A further case of this type is given by patent no. DE 10 2006 032428 A1 of 5 April 2007 which is not relevant to the object of the present invention since the indicated device, not having an inclined optical axis, is not able to modify the inclination of the axis of the luminous flux produced by the LED, nor even more so to do it in more positions and therefore obtaining more inclinations of the luminous flux axis

The main task of what forms the subject of the present application is therefore that of solving the technical problems highlighted, eliminating the drawbacks described above in the known techniques.

This important task is accomplished by a rotation system of the luminous flux conveyor with an inclined optical axis, with respect to the luminous axis of the LED according to multiple values and by creating pegs on the same optic that allow it to be oriented in different positions. and in correspondence with corresponding holes created in an advantageous way in the electronic board. This system allows to modify the inclination projected in plan of the inclined axis of the flow conveyor placed in correspondence with the LED. This allows multiple inclination angles to be attributed to the axis of the flux conveyor itself with respect to the axis of the LED in order to allow different inclinations of the luminous flux axis. In this way it is possible to illuminate in an adjustable and optimal way the surfaces of greater extension and decentralized with respect to the lighting body.

It is also possible to illuminate, with efficiencies unknown to the previous systems of the known techniques, areas that are decentralized with respect to the luminous body, which otherwise would remain in the shade or with insufficient lighting. Furthermore, a fundamental technical solution is available for compliance with the requirements envisaged by the regulations on urban and street lighting. The manufacturer can thus adjust the inclination of the luminous fluxes produced by each LED even after mounting the flux conveyors on the board, for a correct final calibration of the lighting system. Furthermore, for particular applications, the end user is given the possibility to modify the inclination of each conveyor himself and therefore each luminous flux. light, object of the present invention, capable of guaranteeing multiple inclinations of the flow, in place of the realization of multiple flow conveyors each with its own fixed inclination of the optical axis (and therefore expensive multiple production equipment such as injection molds ). Obviously, this advantage also has a positive effect on the development times of the projects which are considerably shorter thanks to the new invention.

The aforementioned task and purposes, as well as others that will appear more clearly later, are achieved by a rotation system consisting of one or more pins obtained on the basis of the flow conveyor placed in contact with the electronic board and which are corresponding seats in special centering holes previously appropriately obtained in the electronic board. These holes are arranged around an ideal circumference concentric to the pivot point of the flow conveyor itself. By positioning the inclined axis luminous flux conveyor by means of the aforementioned pegs on the electronic board and in correspondence with the holes relating to the desired inclination in the plan, different positioning of the luminous flux conveyor and therefore different orientations of the light beam itself are obtained.

By doing so, while maintaining constant the inclination of the inclined axis of the flow conveyor with respect to a vertical axis and perpendicular to the electronic board, a variation in the plan inclination of the aforementioned axis is obtained, intended as a plan projection of the same .

Further characteristics and advantages of the invention with respect to what has been said previously, will become clearer from the detailed description of some particular but not exclusive embodiments, illustrated by way of non-limiting example, in the attached drawings.

Fig. 1 shows, in a sectional view, the inclined axis light flux conveyor, mounted on the electronic board, in correspondence with the LED and centered thanks to the use of the pins positioned in the respective seats. Fig. 2 shows, in an enlarged detailed section, a pin in the relative seat obtained in the electronic board.

Fig. 3 shows, in a plan view, two inclined axis flow conveyors fixed at different inclinations on the electronic board.

Fig. 4 is a three-quarter view of the flow conveyor positioned on the electronic board.

Fig. 5 illustrates, in a three-quarter view, the flow conveyor with the pins in evidence.

Fig. 6 is an exploded three-quarter view of the inclined axis flow conveyor and the electronic board with the relative pins and the corresponding seats.

Fig. 7 illustrates, in an exploded view, the light flow conveyor with an inclined axis and the electronic board with a seat with a different shape.

Fig. 8 shows, in a three-quarter view, the inclined axis luminous flux conveyor mounted on the board according to the solution referred to in the previous point.

With reference to the aforementioned figures, A indicates the luminous flux conveyor with an inclined axis, with t-t the optical axis of the luminous flux conveyor inclined at an angle alpha with respect to the vertical, rotating around the Nâ € ™ s-s axis of the LED and resting on the electronic board B. The letter C indicates the LED.

With M the pins have been indicated and with Q the relative seat-holes. Z indicates the seat for the rungs with a different embodiment.

Given this, in fig. 1 the operation of the present invention is described where the inclined axis flow conveyor is positioned on the electronic board in correspondence with the LED and centered thanks to the use of the pins M positioned in correspondence with corresponding holes Q.

The realization of multiple holes Q with relative centers arranged along an ideal circumference concentric to the axis of the LED, allows to obtain the seats suitable for accommodating the centering pins of the flow conveyor A in multiple positions. These different positions of the flow conveyor allow to obtain a variation of the inclination beta of the optical axis of the inclined axis flow conveyor t-t projected in plan according to t-t2. This therefore allows to direct the light beam deviated from the optical axis of the flux conveyor no longer according to a fixed and non-modifiable inclination of the light axis t-t projected in plan but otherwise according to multiple orientations.

Thanks therefore to the action carried out by this invention, the deviation of the luminous axis s-s produced by the LED C caused by the inclination of the axis of the inclined axis flow conveyor t-t is allowed with the same values but in rotation with respect to to a vertical axis to the support surface. In this way the rotation of the flow conveyor A1 around the support A2 is allowed in multiple directions and no longer according to a single fixed inclination as per known technique.

Naturally, the shape of the pins and that of the relative seats may differ as, by way of example, indicated in figs. 7 and 8. It can be seen how, in this case, the seats of the pegs are no longer simple holes but instead take the form of suitably shaped slots.

Obviously, the solution described above can find other embodiments, always within the scope of the present invention.

It was thus found that the invention has achieved the intended aim and objects, having devised a system for rotating the optical axis of a luminous flux conveyor around the luminous axis of the LED and therefore capable of deflecting the € ™ optical axis of the light beam produced by the LED according to multiple inclinations and no longer according to only a fixed and non-modifiable angle, as with previous known techniques. In this way it was possible to better and optimally illuminate large and decentralized surfaces with respect to the luminous body. Multiple flux conveyors are no longer necessary, each of which has its own unique angle of inclination of the optical axis, but it is sufficient to use a single type of luminous flux conveyor developed with the rotation system referred to in this invention. For each of these inclined axis flux conveyors, all identical to each other, an appropriate angle of inclination with respect to the axis of the LED is set.

In this way, a single type of flow conveyor is realized in place of the many previously necessary. The number of molds required is thus drastically reduced with a consequent significant reduction in terms of costs and production times. Now it is also possible for both the manufacturer and the end user to make all the necessary corrections to the inclination of the inclined axis flow conveyor and therefore of the output luminous flux without having to change the flow conveyor itself with one different.

Naturally the invention is susceptible of numerous modifications and variations, all of which are within the scope of the same inventive concept.

Naturally, the materials as well as the dimensions that make up the individual components of the invention may also be the most pertinent according to specific needs.

Claims (2)

CLAIMS 1) System for modifying the inclination of the axis of the light beam produced by an LED according to multiple values and by rotating a luminous flux conveyor with an inclined optical axis, with respect to the luminous axis of the LED and which is characterized by the fact that on the support base to the electronic board of the flow conveyor one or more pins are integrally obtained, movably interconnected to corresponding holes obtained in the electronic board. 2 System for modifying the inclination of the axis of the light beam produced by an LED which is characterized by the fact that the aforementioned fons are arranged with the centers positioned in correspondence with a concentric circumference to the axis of the LED 3 System for modifying the inclination of the axis of the light beam produced by an LED as per claims 1) and 2), which is characterized by the fact that the shape of the pegs and the relative seats made in the electronic board can take on forms different and appropriate to the SCOpO. System for modifying the inclination of the axis of the light beam produced by an LED as per claims 1), 2) and 3) which is characterized by the fact that the luminous flux conveyor consists of a hollow body with reflective internal surfaces instead of full and transparent. } System for modifying the inclination of the axis of the light beam produced by an LED as per claims 1), 2), 3), 4) which is characterized by the fact that the pins are obtained or applied on the electronic board and the relative female seats are obtained in the luminous flux conveyor. 6) System for modifying the inclination of the axis of the light beam produced by an LED as per claims 1), 2), 3), 4) and 5) which is characterized by the fact that the inclination of the of the luminous flux conveyor can assume one or more values