RU2247897C2 - Method of decorative illumination - Google Patents

Abstract

FIELD: lighting fixtures for decorative illumination of various objects, such as cafes, restaurants, fountains, swimming pools.

SUBSTANCE: proposed method includes formation of lighting flux from three lighting sources of different color which are located inside lighting object and are fed from different generators according to triangle law varying in time at voltages shifted in phase. Lighting object is illuminated by lights built in its elements which refract light; each light consists of three sources of different color; each light source is fed from its generator at voltage varying in time. Lighting object is additionally illuminated by external lights from three light sources of different color; they are made on base of light-emitting diodes; each lighting source is fed from generator at voltage varying in time.

EFFECT: enhanced efficiency.

2 cl, 7 dwg

Description

The claimed invention relates to lighting equipment designed to create decorative lighting effects on objects of various purposes, for example, when decorating interiors of office buildings, train stations, fountains, pools and theatrical performances, cafes, restaurants, etc.

A known method of decorative illumination, consisting in the fact that the color of the light flux emitted by the light source changes when passing through rotating diffraction gratings (see, for example, RF patent No. 2029908, MKI F 21 P 3/00 "Laser light-efficient device", publ. 02/27/1996, in BI No. 6).

The known method allows you to create on the screen a dynamic pattern of luminous points.

Its disadvantage is the presence of rotating elements, which reduces its reliability. In addition, the possible combination of colors is limited.

Closer in technical essence and adopted as a prototype, is the decorative lighting method described in the patent of the Russian Federation No. 2020376, MKI F 21 P 3/00 "Decorative lamp", publ. 09/30/1994 in BI No. 16. The essence of the known technical solution is that the illumination of the luminous object is formed as a result of the addition of the light flux of three-color light sources, powered by different generators with voltage shifted in a symmetrical triangular shape, shifted in phase.

The known method allows you to smoothly change the color of the radiation. Its disadvantage is the relatively limited color gamut of radiation and, as a result, the limited range of applications.

The aim of this invention is to increase the decorative effect and versatility of the luminous object.

This goal is achieved by the fact that in the known method of decorative illumination, which consists in the formation of illumination from three light sources located inside a luminous object and powered by different generators with voltage shifted in phase symmetrical triangular shape, according to the invention, the object is illuminated by lamps built in elements of a luminous object that refract light.

In a variant of the technical solution, the luminous object is additionally illuminated by external lights.

In a technical solution, the luminaires built into the refracting elements consist of three multi-colored light sources and, each light source receives power from its generator with a voltage that varies with time.

In a variant of the technical solution, external lights consist of three light sources of different colors, and each light source receives power from a generator with a voltage that varies with time.

In a variant of the technical solution, the laws of variation of the voltage of the generators are different.

In a technical solution, decorative light sources are connected to voltage generators according to a scheme based on a mathematical method of permutation so that the total luminous fluxes of decorative lamps differ from each other.

In the known device for decorative illumination, comprising a housing with three-color light sources switched on by phase and voltage generators, according to the invention, three-color light sources are integrated into transparent structural elements made of light-refracting materials, external lights with three multi-colored light sources are installed outside the housing and each source receives power from a generator with a time-varying voltage.

Illumination of a luminous object by lamps built into the elements that refract light increases the decorative properties of a luminous object.

The illumination of the luminous object from external lights provides greater color and play of light on the light-refracting elements even when the light source is turned off.

Illumination of the object from the built-in elements of light-emitting diodes and external lamps with three-color light sources installed on different sides of the object, changing their color and brightness allows you to get the resulting light flux with a kaleidoscopic gamut of colors, which significantly increases the decorative effect.

An even greater decorative effect is created when the laws of variation of the voltage of the generators are different.

Connecting the light sources of decorative lamps to voltage generators according to a scheme based on the mathematical method of permutation so that the total luminous fluxes of decorative lamps differ from each other, reduce the number of generators while maintaining the dynamic range of color and brightness of the light flux coming from various lamps.

The proposed technical solution due to the variety of decorative lighting effects can be widely used for decorative illumination of a variety of objects, which expands the scope of this solution.

The description is illustrated by drawings.

Figure 1 shows a view of a decorative pendant with a built-in lamp - an LED.

Figure 2 presents a variant of the luminous object with structural elements and suspension elements, refracting light.

Figure 3 shows a luminous object with illumination from external lights.

Figure 4 is a schematic diagram of the inclusion of LEDs with a different emission spectrum.

Figure 5 shows the nature of the dependence of voltage on time for generators supplying LEDs with a different emission spectrum.

In Fig.6 there is a graph of the light output of the LEDs depending on the current.

Figure 7 presents a schematic electrical diagram of an option to turn on light sources from generators.

Elements common to all figures are denoted identically.

The luminous object according to the method of decorative illumination is made as follows. A chandelier with decorative light-refracting elements in the form of garlands was used as a model for description. The upper elements 1 (Fig. 1) of garlands made, for example, of plastic with a high refractive index, have in their upper part built-in lights in the form of LEDs 2. Below, the entire garland of refractive elements is suspended. The total number n of LEDs of series 2; 2 ₁ -2 _n depends on the device of the chandelier, the number of garlands and the method of their suspension. The lower index in the designation of recessed LEDs corresponds to the number of the highlighted garland.

In the embodiment of the technical solution, each lamp 2 is based on three-color LEDs, for example, with red (2 _n ''), green (2 _n '') and blue (2 _n ''') emission spectra, arranged in one housing.

The chandelier contains a ceiling 3 (figure 2), the main light sources 4, structural elements 5 and decorative garlands 6. Elements 5 and 6 are made of light-refracting material. In the bowl 7 is a decorative lamp, consisting of three-color light sources 8, which performs the function of illuminating the decorative elements of the chandelier.

As a decorative luminaire 8, a single-housing tri-color LED with red (8 ’), green (8’ ’) and blue (8’ ’’) emission spectra can be used.

The chandelier assembly 9 (Fig. 3) is illuminated by external multi-colored lights 10, 11, 12 and 13, suspended on the walls or ceiling of the room.

In an embodiment of the technical solution, the lights 10, 11, 12 and 13 are based on three-color LEDs with red 10 ’, 11’, 12 ’, 13’; green 10 ’’, 11 ’’, 12 ’’, 13 ’’ and blue 10 ’’ ’, 11’ ’’ ’, 12’ ’’ ’, 13’ ’’ ’emission spectra built into the common lamp housing.

All the light sources are connected to its generator, e.g., 2 ₁ '2 _1' '2 _1' ', 2 _n', 2 _n '', 2 _n ''',8', 8 '', 8 ''' are connected respectively to the generators 16, 15, 14, 19, 18, 17, 22, 21, 20 (Fig. 4), which, in turn, are connected to a common converter 23 and have a switch 24. The total number of generators is equal to the number of light sources . So, if in this example the total number of decorative illuminated light sources is 6, then the number of generators should be the same, and taking into account the light sources of external lamps, the total number of generators is 15. + 3n, where n is the number of illuminated garlands.

Generators 14-22, like others, provide different voltage graphs for light sources with a different emission spectrum, for example for generator 14 this graph is indicated by 25 (Fig. 5), for generator 15 by 26 and by generator 16 by 27 The voltage variation graphs of the remaining generators are similar, but differ in the duration of the ascending and descending lines.

The dependence between the magnitude of the current Iph flowing through the LED and the light flux emitted by it Ф is almost linear and is indicated in Fig. 6 by the number 28.

To reduce the number of generators, Fig. 7 shows a circuit for switching on 18 light sources - LEDs with different emission spectra from three generators. In order for all the decorative fixtures and lanterns to differ from each other by the color of the radiation, the diagram in Fig. 7 is based on the mathematical method of permutation, according to which the number of permutations Рm is equal to m !, where m is the total number of light sources of an individual decorative lamp. For six luminaires with 18 LEDs, the number of generators is three. For a larger number of fixtures, to ensure a difference in color, it is necessary to increase the number of generators. So in the diagram of FIG. 7, LEDs 2 ’, 8’, 10 ’’ ’, 11’ ’, 12’ ’, 13’ ’’ are connected to the generator 14. LEDs 2 ’’ ’, 8’ ’, 10’, 11 ’, 12’ ’’, 13 ’’ are connected to the generator 15. LEDs 2 ’’, 8 ’’ ’, 10’ ’, 11’ ’’, 12 ’, 13’ are connected to the generator 16. To reduce the number of generators in this circuit, LEDs of series 2 with the same color of radiation are connected in series. The order of turning on the LEDs is such that any type of decorative lamp has a resulting luminous flux that differs from others in color and brightness.

The chandelier according to the decorative lighting method operates as follows. LEDs 2 (figure 1), built into the upper elements of the suspension 1 of the garland have a luminous flux directed downward. At the same time, they provide illumination of the entire garland, thus creating, in combination with decorative lamps 8, a colorful effect of the play of light on the faces of the refracting elements 5 and 6 (Fig. 2). The design of the luminous object is not of particular importance.

In an embodiment of the technical solution, external lights 10, 11, 12 and 13 having differently colored light fluxes directed to the light refracting elements 5 and 6 create the effect of a play of light on the faces of the suspension elements, regardless of whether the main light sources 4 are lit or not. The combination of light fluxes from LEDs 2 and 8, as well as lights 10, 11, 12 and 13, makes the refracting elements of the chandelier glow with all the colors of the rainbow.

The LEDs in the decorative lamp 8, built into the lamps 2, as well as in the external lights 10, 11, 12, 13 receive power from individual generators, as in the diagram in figure 5. Generators change their voltage according to various laws, changing the current of the corresponding LED. When this changes its luminous flux (Fig.6) and brightness. In each three-color decorative lamp, the resulting luminous flux is created, determined by summing the three components, red (LEDs 2 ', 8', 10 ', 11', 12 ', 13') green (LEDs 2 '', 8 '', 10 '' , 11``, 12 '', 13``), and blue (LEDs 2 '' ', 8' '', 10 '' ', 11' '', 12`` ', 13' ''). As you know, any color is obtained as a result of a mixture of three colors - red, green and blue. By changing the light flux of the components, you can smoothly switch from one color to another. Thus, in the combination of multi-colored and constantly changing color and brightness of the light fluxes from the luminaires and external lights located on the luminous object, a kaleidoscopic, unique gamut of colors is created that provides an excellent play of light on the suspension elements of a chandelier or any other object.

In the embodiment of the technical solution presented in Fig. 7, with a practically similar effect, the number of generators is saved. In this case, their number is reduced from 18 to 3.

The technical and economic advantages of the proposed lamp with LED backlight are as follows.

1. Increases the versatility of the luminous object due to the possibility of a large selection of options for decorative lighting.

2. The decorative properties of the product are improved due to the play of light from a large number of fixtures with light fluxes that vary in brightness and color.

Claims (2)

1. The method of decorative illumination, which consists in the formation of light from three colorful sources located inside a luminous object and powered by different generators with time varying triangular law and phase-shifted voltages, characterized in that the object is illuminated by lamps built into the elements of the luminous object refracting light, each lamp consists of three light sources that differ in color and each light source receives power from its generator with time varying and the voltage, the luminous object is further illuminated by external lamps of three different color light sources based on LEDs executed, and each light source also receives power from a generator with a time-varying voltage. 2. The method of decorative illumination according to claim 1, characterized in that light sources with a different radiation spectrum are connected to each generator.

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