RU2285860C1 - Light diode illuminator and method of illuminating surface - Google Patents

Abstract

FIELD: non-portable lighting devices or systems.

SUBSTANCE: light diode illuminator comprises frame, fastening members, wires, and light source composed of main and auxiliary light diodes. The panel is made of a flat disk provided with at least three tabs. The main light diodes are secured to the front side of the panel so that their light beams are predominantly directed to the surface to be illuminated. The auxiliary light diodes are mounted on the back side of the panel, and their light beams are directed predominantly counter to these of the main light diodes. The tubs are provided with mechanisms for rotating the tubs around the axis that passes through the center of the disk and axes of symmetry of the tubs. The fastening members are provided with wires, and disk has inner opening.

EFFECT: expanded functional capabilities.

11 cl, 10 dwg

Description

The claimed invention relates to lighting equipment and may find application as a light source for lighting various surfaces, as well as to create decorative lighting effects, for example, when decorating the interiors of common areas. In addition, the proposed illuminator can be used as emergency or emergency lighting.

Known LED illuminator described in the patent of the Russian Federation No. 2202731 "Light device with LEDs", IPC F 21 5/00, publ. 04/20/2003 in BI No. 11.

Known LED illuminator contains a light source with LEDs, assembled and connected to each other on a flat panel, connecting wires and a power source.

A disadvantage of the known LED illuminator is that it has a complex structure, which increases the cost of production and leads to an increase in the cost of the product.

Closer in technical essence and adopted for the prototype is an LED illuminator described in RF patent No. 2178588, IPC G 12 B 11/00 "Light panel", publ. 12.12.2000, in BI No. 12.

Known LED illuminator consists of a flat panel made of transparent material, LEDs mounted on the panel, power supply, lead wires and fasteners.

A disadvantage of the known illuminator is that in it the luminous flux of the LEDs is directed along the luminous surface of the panel. This circumstance leads to a decrease in the luminous flux directed perpendicular to the luminous surface. In addition, it is impossible to change the direction of the light flux in it.

The objective of the invention is to provide an easy-to-manufacture multifunctional LED lighting device with improved consumer properties, with an increased luminous flux, the direction of which can be adjusted. In addition to this, the proposed illuminator helps to improve the living environment.

The problem is solved in that in the known LED illuminator comprising a panel, fasteners, power supply, conductive wires and a light source consisting of LEDs according to the invention, the panel is made in the form of a flat disk with petals and resembles an epicycloid in which the number of branches ( petals) m is within m≥3. The LEDs are divided into main and auxiliary, the main LEDs are mounted on the front side of the panel so that their light fluxes are directed mainly towards the illuminated surface, and the auxiliary LEDs are installed on the rear side of the panel, their light fluxes are directed mainly in the direction opposite to the light fluxes of the main LEDs, moreover, the fastening elements also contain conductive wires. The disk has an internal hole.

In a variant of the technical solution, the auxiliary LEDs have a radiation spectrum different from the main LEDs.

In the embodiment of the technical solution, the petals with the main LEDs are made in the form of separate parts and articulated with a disk on the back and hinges made like door hinges, and the adjacent end surfaces of the petals and disk have bevels diverging from the front surface.

In the technical solution, each petal contains a mechanism that allows you to change the position of the plane of the petal, rotating it around an axis passing through the center of the disk and the axis of symmetry of the petal, in which each petal is equipped with a separate part, the end surface of which, with the possibility of rotation, has a threaded connection with a stud , the pin is rigidly articulated with the adjacent end surface of the disk. On the other hand, the part is articulated with a petal with a hinge, made like door hinges.

In an embodiment of the technical solution, the petals are made of heat-conducting material, for example, bronze, and the disk is made of transparent material, and additional LEDs are inserted from the side of the inner hole at the end to the inside of the disk.

In an embodiment of the technical solution, the main LEDs are divided into groups differing in emission spectra, and each group of LEDs is connected to its own voltage regulator with an adjustable voltage and each regulator is connected to a master programming device.

In an embodiment of the technical solution, the groups consist of LEDs with a different emission spectrum.

In the embodiment of the technical solution, single-case tri-color LEDs with red, green, and blue emission spectra are used as the light source.

In an embodiment of the technical solution, the LEDs are equipped with a device that generates a traveling wave of light, in which each group of LEDs is located on a particular lobe, the groups are connected to a separate controller and each individual controller is connected to a master programming device.

In a variant of the technical solution, the illuminator is equipped with a mechanism that allows you to change the distribution of the radiation flux on the illuminated surface. This mechanism is arranged as follows. LEDs are divided into groups that differ in the angle of distribution of the radiation flux in space, and place them next to each other. The axis of symmetry of the light fluxes of the LEDs should be parallel. Each group of LEDs is turned on in a specific sequence. LEDs of all groups are located on the moving petals. If you direct the planes of these petals so that the centers of the axes of the light flux are projected at one point, then by varying the inclusion of groups of LEDs, you can get the light effect of converging and diverging light circles.

The use of a disk-shaped framework with petals resembling an epicycloid gives the illuminator a good presentation and allows you to place a larger number of light sources on a more developed surface of the illuminator. In addition, the proposed design improves the cooling of light sources, since the processes associated with natural convection become more intense.

A certain range in the number of petals allows you to create on the basis of this proposal a large assortment of products with different consumer properties. The presence of primary and secondary LEDs makes it possible to distribute the light flux in different directions relative to the surface of the panel. Auxiliary LEDs illuminate the upper hemisphere. This reduces the contrast between the light illuminated surface and the dark opposite background, which reduces visual fatigue. The presence of a round hole in the center of the board allows you to conveniently place the elements of the suspension and conductive wires. This improves the appearance of the product and reduces its material consumption.

If auxiliary LEDs have a radiation spectrum different from the main LEDs, then such a illuminator has enhanced environmental properties. In particular, the use of auxiliary LEDs with a blue emission spectrum creates the illusion of natural light emanating from a blue sky.

The movable connection of the petals with the disk makes it possible to change the direction of the light flux of each petal in different directions.

The execution of the petals of a heat-conducting material contributes to the solution of two problems. On the one hand, the appearance of the product improves, on the other hand, the heat-conducting material acts as a heat sink, which allows the use of more powerful LEDs.

If the panel disk is made of transparent material and additional LEDs are inserted into its body from the perimeter side of the hole, such a backlight enhances the decorative properties of the illuminator and at the same time reduces the contrast that is harmful to vision between the illuminated surfaces and the surface of the illuminator itself.

Dividing the LEDs into groups with different emission spectra and connecting each group of LEDs to its own voltage regulator makes it possible to adjust the total emission spectrum, which expands the possibilities of using the illuminator, using it, for example, for medical purposes. The decorative effect, in which the total light and color flow changes according to an unpredictable law, expands the range of application of the illuminator, allowing it to be used in cafes, bars, etc.

The use of single-case tri-color LEDs with red, green and blue emission spectra simplifies the installation of illuminator elements.

A traveling light wave, on the one hand, can be used to increase the decorative properties of a product, and on the other hand, it is used for emergency signaling, in which the direction of a traveling light wave can be coordinated with an indication of the exit from the room.

In a variant of the technical solution, when the illuminator is equipped with a mechanism that allows you to change the distribution of the radiation flux on the illuminated surface, the range of its application is also expanded. In particular, such a illuminator can be used in public places to create specific visual effects.

Due to the variety of design options and the presence of lighting effects, the proposed illuminator can be widely used to illuminate a wide variety of objects, which expands the scope of this proposal.

Figure 1 shows the front panel with three petals with LEDs.

Figure 2 shows a fragment of a panel with LEDs.

Figure 3 presents the front side of the panel with six petals.

Figure 4 shows the front side of the panel with 12 petals.

Figure 5 shows an embodiment of a panel with petals having a swivel connection to the disk (side view).

Figure 6 shows the design of the panel, in which the petals can rotate in the longitudinal and transverse planes (side view).

Figure 7 is a view of a petal with two rotation mechanisms (view from the back).

On Fig there is a picture of the location of the LEDs, differing in the angle of distribution of the radiation flux in space.

Figure 9 has a circuit diagram of the inclusion of LEDs.

Figure 10 shows a circuit diagram of the inclusion of LEDs with a master programming device.

Elements common to all figures are denoted identically.

LED illuminator is arranged as follows. The panel in plan is a flat disk 1 (figures 1, 3, 4) with petals 2 and resembles an epicycloid (see: Polytechnical Dictionary / A.Yu. Ishlinsky. - M.: Soviet Encyclopedia, 1989, p. 626 ), in which the number of branches m (petals) is within m≥3. The main LEDs 3 are mounted on the front surface of the panel so that their light fluxes are directed mainly towards the illuminated surface. On the rear side of the panel are auxiliary LEDs 4 (figure 2). Their light fluxes are directed mainly in the direction opposite to the light fluxes of the main LEDs. The emission spectra of the auxiliary LEDs may be different from the emission spectrum of the main LEDs. For example, the main LEDs 3 emit white light, and the auxiliary LEDs 4 have a blue emission spectrum. The disk 1 has an internal hole 5. The fastening elements (not shown) are connected to the disk in places 6 along the contour of the internal hole 5. Electrically conductive wires 7 passing along the rear side of the panel are also fed through the elements.

The number of panel blades depends on the type and power of the LEDs used. In particular, if LEDs with a rectangular housing are used, a panel with three petals is better suited (Fig. 1). In the event that relatively high-power LEDs with a round casing are used, an embodiment of a panel with six petals can be used (Fig. 3).

Often, at the request of the consumer, relatively cheap and low-power LEDs are used. To create a sufficient luminous flux, it is necessary to install a large number of LEDs. To do this, the surface of the panel must be sufficiently developed. Figure 4 shows such a panel consisting of 12 petals. The main LEDs 3 can be installed on the front surface of the disk 1 and the petals 2.

In a variant of the technical solution, the disk 1 is made of a transparent material. From the side of the inner hole 5, at the end inside the disk 1, luminous elements of additional LEDs 4 'are inserted.

In an embodiment of the technical solution, the petals 2 are made of a heat-conducting material, for example, bronze.

In an embodiment of the technical solution, the petals 2 are articulated with the disk 1 by hinges 8 (Fig. 5), made like door hinges, and the adjacent end surfaces of the petals 2 and the disk 1 have bevels diverging from the front surfaces of the disk and the petals (not indicated). In this case, a disk without petals takes the form of a polyhedron. Figure 5 also shows the elements of the suspension 9, connecting with the fastening elements 6.

In the technical solution, each petal 2 contains a mechanism that allows you to change the position of the plane of the petal, rotating it around an axis passing through the center of the disk and the axis of symmetry of the petal. For this, each petal is equipped with a separate part 10 (Fig.6). The end surface of the part 10, with the possibility of rotation, has a threaded connection with the stud 11. The stud 11, in turn, is rigidly articulated with the adjacent end surface of the disk. In this case, the petals 2 can be rotated through an angle of 90 ° in both directions along the thread of the stud. On the other hand, the parts 10 are articulated with the petals 2 (Fig. 7) of the hinges 8 previously described in accordance with Fig. 5. In this case, the electric wires have a certain margin in length, allowing for a change in the position of the petals. Thus, the petals are a turntable rotating around a longitudinal and transverse axis.

All places of movable joints should have some internal friction, sufficient to prevent spontaneous changes in the position of the petals, but allowing, with little effort, to change their position.

In a variant of the technical solution, the illuminator is equipped with a mechanism that allows you to change the distribution of the radiation flux on the illuminated surface. For this, the main LEDs 3, located on the surface of the panel, are divided into groups that differ in the angle of distribution of the radiation flux in space. LEDs are placed next to each other. For example, on each petal 2 (Fig. 8) four groups of LEDs are installed, three in each group. The axis of symmetry of their light fluxes are parallel. And each group differs from the other by changing the angle of distribution of the radiation flux. For example, one group of LEDs has a distribution angle of 10 °, the second 20 °, the third 30 ° and the fourth 40 °. There can be more groups of LEDs. Each group of LEDs may differ in the spectrum of radiation.

In a simplified version of the electrical circuit (Fig. 9), the main 3 and additional 4 'LEDs are connected to the voltage converter 12 through a common switch 13. Auxiliary LEDs 4 are connected to the voltage converter 12 through a switch 14 and a voltage regulator 15.

In another embodiment of the electric circuit, the groups consist of LEDs 3 with a different emission spectrum, for example, with red 3 ', green 3' ', blue 3' '', etc. (Fig.10) radiation spectra. Each group of LEDs is connected to its own voltage regulator, respectively, 16, 17, 18, 19, etc., which, in turn, are connected to the converter 15. The voltage regulators receive control signals from the master programming device 20. Auxiliary LEDs 4 and additional LEDs 4 'are turned on similarly to Fig. 9.

In the embodiment of the technical solution, single-case tri-color LEDs with red, green, and blue emission spectra are used as light sources. The connection diagram remains the same as in FIG. 10.

The voltage regulators 16-19 on the signals of the programming device 20 provide various graphs of voltage changes. They can also be programmed for specific on and off cycles. The number of LEDs in a group depends on the required light intensity and the power of the devices used.

In the embodiment of the technical solution, the groups consist of LEDs with a different emission spectrum, for example, LEDs 3 ', 3' 'and 3' '', etc. are connected in one branch.

To obtain the effect of changing the distribution of the radiation flux on the illuminated surface, the LEDs are divided into groups that differ in the angle of distribution of the radiation flux in space. Such LEDs turn on similarly to LEDs with a different emission spectrum (Fig. 10). On the circuit diagram (Fig. 10) they are denoted in the same way as LEDs that differ only in the spectrum of radiation.

LED illuminator operates as follows. LEDs 3 create light flux directed away from the front surface of the panel. In this case, the panel can be used as a chandelier or wall lamp with nightlight functions, or as an element of emergency or emergency lighting. If the switching circuit according to Fig. 9 is used, then when the switch 13 is turned on, the main LEDs 3 and the additional 4 'begin to shine. The main LEDs create the main light flux, and additional softly illuminate the ceiling from the inside. Thus, two functions are performed: the decorative properties of the illuminator are increased and at the same time, the contrast harmful to vision between the illuminated surfaces and the surface of the illuminator itself is reduced. When the switch 14 is turned on, auxiliary LEDs 4 receive power, which create a luminous flux directed in the direction opposite to the luminous flux of the main LEDs. In this case, the contrast between the light illuminated surface and the dark opposite background is reduced, which reduces visual fatigue. Auxiliary LEDs are also used as a night lamp with a dimmable brightness adjustable from regulator 15. Particularly favorable lighting is created if auxiliary LEDs with blue glow are used. Blue light is preferable for night illumination, and for the formation of a blue background of the upper hemisphere, creating the illusion of a sky. This circumstance creates a more environmentally friendly indoor environment, i.e. appropriate natural.

The second variant of the electric circuit (Fig. 10) using groups of multi-color LEDs or LEDs with different angles of distribution of light fluxes is more universal. The luminous flux turns out to be more diverse if groups of LEDs of different colors are connected to separate and different generators with a varying voltage diagram, which is dictated by a programming programmer 20. In this case, a kaleidoscopic effect of a constant change in light and color on the front surface of the panel is provided. Such a lamp can be used in places of entertainment, bars, restaurants, etc.

Voltage regulators 16-19 may be a traveling light wave device. To do this, each group of LEDs is located on one or another lobe, connected to a separate controller and each individual controller is connected to the master programming device 20. If the controllers work in a certain order, and the LEDs in the groups are arranged in a certain sequence, then a traveling light wave, speed the movement of which sets the master programming device. A traveling light wave can be formed on the basis of LEDs with a different emission spectrum.

The use of single-case LEDs with red, green and blue emission spectra simplifies the installation of light sources.

Dividing the LEDs into groups with different emission spectra and connecting each group of LEDs to its own voltage regulator makes it possible to adjust the total emission spectrum. This expands the possibilities of using the illuminator, using it, for example, for medicinal purposes. It is known, for example, that the blue color helps with headaches, with mental exhaustion, the purple color helps, with problems with the gall bladder, the orange color helps, etc. Using the regulators 16-19 (figure 10), you can form almost any color of radiation.

The execution of the petals of a heat-conducting material contributes to the solution of two problems. On the one hand, the appearance of the product improves, and on the other hand, the heat-conducting material acts as a heat sink, which allows the use of more powerful LEDs.

The duty lighting mode is ensured due to the fact that only part of the LEDs is turned on.

Each petal is a rotary platform (5, 7), which can be rotated so that the light flux from the light source placed on it will be directed to any point in space. Thus, the movable connection of the petals with the disk makes it possible to redistribute the direction of the light flux of each illuminator and, if necessary, concentrate it in one direction or, conversely, disperse it over a large space. It is possible, for example, to distribute light glare from LEDs located on the petals, on the walls or ceiling, or floor. For emergency situations, the LEDs can be turned on in a certain sequence so that a traveling wave of light is formed, showing the direction of movement towards the exit from the room.

In the embodiment in which the LEDs are divided into groups that differ in the angle of distribution of the radiation flux in space, the same connection scheme is applied (Fig. 10) as for multi-color LEDs to change the distribution of the radiation flux on the illuminated surface. LEDs of all groups are located on the moving petals. If we direct the planes of the petals 2 so that the centers of the axes of the light flux from the LEDs of each petal are projected at one point, then by varying the inclusion of groups of LEDs, you can get the light effect of converging and diverging light circles.

Currently, the industry produces a huge range of LEDs that differ in power consumption, luminous flux, light patterns, overall dimensions: body shape, radiation color. The developer is faced with the task of manufacturing a lighter that is most acceptable to the consumer at a price - quality. The proposed design of the panel in this regard allows you to optimally implement this or that type of LEDs, respond flexibly to a variety of requests, changing the number of petals. In addition, various forms of panel execution (Figs. 1, 2, 4) expand the capabilities of the designer in the design of the illuminator. The presence of petals in the proposed design improves the cooling of light sources, since the processes associated with natural convection become more intense. Cooling air flows freely into the hole 5 of the disk 1 and between the petals.

The main advantages of this invention are:

Obtaining large light fluxes with an optimal arrangement of light sources.

The ability to adjust the direction of the light flux.

A wide range of color changes.

The ability to change the distribution of light flux over the surface.

Large range of possible applications.

Claims (11)

1. An LED illuminator comprising a panel, fasteners, a power source, electrically conductive wires and a light source consisting of LEDs, characterized in that the panel is made in the form of a flat disk with petals and resembles an epicycloid in which the number of branches (petals) m is in within m≥3, the LEDs are divided into main and auxiliary, the main LEDs are mounted on the front side of the panel so that their light fluxes are directed mainly towards the illuminated surface, and the auxiliary The LEDs are mounted on the rear side of the panel, their light fluxes are directed mainly in the direction opposite to the light fluxes of the main LEDs, and the fastening elements also contain electrically conductive wires, and the disk has an internal hole. 2. The LED illuminator according to claim 1, characterized in that the auxiliary LEDs have a radiation spectrum different from the main LEDs. 3. The LED illuminator according to claim 1, characterized in that the petals with the main LEDs are made in the form of separate parts and are connected to the disk on the back by hinges made like door hinges, and the adjacent end surfaces of the petals and disk have bevels diverging from the front surface . 4. The LED illuminator according to claims 1, 3, characterized in that each petal contains a mechanism that allows you to change the position of the plane of the petal, rotating it around an axis passing through the center of the disk and the axis of symmetry of the petal, in which each petal is equipped with a separate part, the end surface which, with the possibility of rotation, has a threaded connection with a hairpin, the hairpin is rigidly articulated with the adjacent end surface of the disk, on the other hand, the part is articulated with a petal with a hinge, made like door hinges. 5. The LED illuminator according to claim 1, characterized in that the petals are made of heat-conducting material, for example, bronze, and the disk is made of transparent material, and additional LEDs are inserted from the side of the inner hole, at the end, inside the disk. 6. The LED illuminator according to any one of claims 1, 3, characterized in that the main LEDs are divided into groups, each group of LEDs is located on one or another lobe, the groups are connected to a separate voltage regulator, and each regulator is connected to a master programming device. 7. The LED illuminator according to claim 1, characterized in that the groups consist of LEDs with a different emission spectrum, the groups are connected to a voltage regulator, and each regulator is connected to a master programming device. 8. The LED illuminator according to claim 1, characterized in that the single-case tri-color LEDs with red, green and blue emission spectra are used as the light source. 9. The LED illuminator according to claims 1, 2, characterized in that the LEDs are divided into groups differing in the angle of distribution of the radiation flux in space, the LEDs are placed adjacent to each other so that the axis of symmetry of their light fluxes are parallel, each group of LEDs is connected to the voltage regulator and each regulator is connected to a master programming device. 10. The method of forming the illumination of the surface, in which each light source changes the direction of the light flux, characterized in that the change in light flux is due to the fact that each light source is placed on flat petals and these petals are rotatable in the longitudinal and transverse directions around fixed disk. 11. The method according to claim 10, characterized in that the LEDs are divided into groups that differ in the angle of distribution of the radiation flux in space, the LEDs are placed on the petals next to each other so that the axis of symmetry of their light fluxes are parallel and each group of LEDs is included in a certain sequence.

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