JP2006079897A - Electronic decoration fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein, in a conventional technique of an electronic decoration fixture for expressing flame by LED light-emitting elements, a small flame such as a candle indoors can be realized, but a large flame such as bonfire set outdoors or a realistic movement of a flame due to wind can not be expressed. <P>SOLUTION: The electronic decoration fixture 10 is provided with; a plurality of LED light-emitting elements 25; a transparent indented surface light diffusion plate 28 arranged at a required distance from the LED light-emitting elements; and a control part 18 carrying out brightness control of the LED light-emitting elements 25. The control part 18 expresses a realistic movement of a flame by changing over light-emitting patterns in a plurality of flame shapes in a required time interval. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic ornament using a plurality of LED light emitting elements, and more particularly to an electronic ornament that expresses a flame.

  Traditionally, flames have been used in various scenes of human life, such as candles used at Buddhist altars, or bonfires installed at restaurants, etc. It was.

  On the other hand, however, flames have problems in terms of safety, such as burns and sometimes fires if handled incorrectly.

  In view of the above problems, in recent years, electronic ornaments that are safe and look like an actual flame have been proposed by using LED light emitting elements.

  As such an electronic ornament, Patent Document 1 discloses a technology that realizes a flame such as a candle used for a Buddhist altar.

FIG. 11 shows an electronic flame lamp described in Patent Document 1. The electronic flame lamp 1 is placed close to the translucent plastic flame case 5 and the flame case 5 in an upward direction. LED light emitting elements 2 and 3 disposed in a state of being bent, a terminal is bent in a U-shape, LED light emitting element 4 is disposed downward, and a control board (not shown) made of an oscillation circuit, By causing the LED light-emitting elements 2 and 3 to blink irregularly and keeping the LED light-emitting element 4 in a constantly lit state, it looks like a candle flame.
JP 7-326212 A

  However, the conventional technique is a technique for expressing indoor flames, and the expression described in Patent Document 1 cannot express expressions such as the strength of a fire column in the outdoors or the right and left shaking by a wind. That is, the configuration described in Patent Literature 1 can express a relatively small movement of a flame, such as a candle flame, but cannot express a large flame such as a bonfire installed at a restaurant front or the like.

  As a countermeasure for this, it is conceivable to increase the number of LED light-emitting elements, but the manufacture and arrangement of LED light-emitting elements with different terminal shapes is complicated, and for upward LED light-emitting elements, an oscillation circuit is required individually. There are manufacturing problems such as complicated control circuits.

  In view of the above problems, an object of the present invention is to provide an electronic ornament that can more realistically express an outdoor flame with an LED light-emitting element and can be easily manufactured.

  In order to achieve the above object, the invention described in claim 1 includes a light emitting portion in which a plurality of LED light emitting elements are arranged in a plane, a light diffusing plate having transparency and an uneven surface shape, A control unit that controls blinking of each of the LED light emitting elements of the light emitting unit, and a storage unit that stores a program for operating the control unit and data of a plurality of flame light emission patterns that differ in flame shape. The light diffusion plate is disposed at a desired distance from the plurality of LED light emitting elements, and the control unit controls the blinking of the plurality of LED light emitting elements while switching the flame light emitting pattern at a desired time interval. It is an electronic ornament.

  According to such a configuration, the light diffusing plate can blur the light emitting portion of the lit LED light emitting element, and the LED light emitting element is arranged in a plane, so that the movement of the flame can be expressed realistically. It is possible to emit various patterns.

  According to a second aspect of the present invention, in the electronic ornament according to the first aspect, the luminance is set to be lower as it goes to the periphery of the flame shape in the flame emission pattern.

  According to such a configuration, a light color around the flame can be expressed, and a more realistic flame can be expressed.

  The invention according to claim 3 is the electronic ornament according to claim 1 or 2, wherein the flame light emission pattern is switched randomly.

  According to such a configuration, it is possible to express an irregular flame movement.

  According to a fourth aspect of the present invention, in the electronic ornament according to any one of the first to third aspects, the plurality of LED light emitting elements are light emitting elements having different emission colors.

  According to such a configuration, a more delicate hue can be expressed as compared with a case where light is emitted by a single color LED light emitting element.

  According to a fifth aspect of the present invention, there is provided the electronic ornament according to any one of the first to fourth aspects, further comprising a wind direction sensor, wherein the flame emission pattern is switched according to a detection value of the wind direction sensor.

  According to such a configuration, the flame emission pattern can be changed by the detection value of the wind direction sensor, and the movement of the flame due to the influence of the wind can be expressed.

  According to a sixth aspect of the present invention, in the electronic ornament according to any one of the first to fifth aspects, an electronic device comprising a wind speed sensor and changing a switching cycle of the flame emission pattern according to a detection value of the wind speed sensor. It is a decoration tool.

  According to such a configuration, it is possible to represent the movement of the flame due to the strength of the wind.

  As described above, according to the electronic decoration tool of the present invention, it is possible to express the strength of the fire column of the flame outdoors or the movement of the flame due to the wind.

  In addition, the electronic decoration device of the present invention can be realized by using the LED light emitting element arranged in a planar shape, and does not require a complicated manufacturing process such as bending the terminal of the LED light emitting element as in the past, and is easy. Can be assembled.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
A first embodiment of the present invention will be described.

  1A is a cross-sectional perspective view of the electronic decoration tool 10 of the present invention, FIG. 1B is a cross-sectional view showing the internal structure, and FIG. 2A is an arrow A in FIG. FIG. 2B is a cross-sectional view taken along the line BB in FIG. 1B viewed from the direction of arrow A. FIG.

  As shown in FIGS. 1A and 1B, the electronic decoration tool 10 includes a main body case 11 and a plurality of, for example, orange LED light emitting elements 25 as a light emitter on a substrate 17 and a bottom portion 32. A light emitting unit 12 arranged perpendicular to the control unit 18, a control unit 18 in which an electronic component 15 such as a CPU and a power circuit (not shown) are arranged on the substrate 14, and the control unit 18 are fixed to the main body case 11 Fixing fixture 20, a light diffusion plate 28 that is transparent and has a shape of irregularities 30 on the surface, and is disposed so that the distance 21 from the light emitting unit 12 is constant, the control unit 18, and the light emitting unit 12. And a power cord 31 for supplying power, and the unevenness 30 of the light diffusing plate 28 is arranged to be parallel to the bottom 32.

  Further, as shown in the internal block diagram of FIG. 3, the control unit 18 includes a power source unit 37 that converts a commercial power source into a voltage required for the internal circuit, a CPU 36 that controls the light emitting unit 12 by a program, and a CPU 36 Flashing control is performed based on signals from the CPU 36 of each LED light emitting element 25 disposed in the light emitting unit 12 and a storage unit 35 that stores a program for operation, flame light emission pattern data of the light emitting unit 12, and the like. In the brightness control of the LED light emitting element 25, the LED light emitting element 25 is controlled to blink by a pulse waveform signal as shown in FIG. Among them, the longer the “H” time, the higher the luminance.

  Further, the present invention includes a flame light emission pattern having a flame shape as shown in FIG. 5A, and the luminance of each LED light emitting element 25 is as a luminance table 50 as shown in FIG. 5B. The CPU 36 controls the luminance of each LED light emitting element 25 while referring to the luminance table 50.

  The numerical value of the luminance information 52 corresponding to each LED light emitting element 25 in the luminance table 50 indicates the luminance of each LED light emitting element 25. The larger the numerical value, the higher the luminance.

  Next, how the LED light emitting element 25 looks when the LED light emitting element 25 is caused to blink by the above configuration will be described.

  When viewed from the outside of the light diffusing plate 28, the light from the LED light emitting element 25 seems to extend in the direction of the arrow 61 with respect to the bottom 32 as shown in FIG. Since the brightness of the peripheral portion 60 gradually decreases, a light color can be expressed, and a plurality of flame emission patterns as shown in FIGS. 7A to 7E are switched at a time interval of 20 to 50 mS, for example. Due to the afterimage effect of the human eye, it looks as if the flame is burning inside the light diffusing plate 28.

  Further, since the brightness is gradually lowered as it goes in the direction of the arrows 52a and 52b in FIG. 5B, that is, as it goes to the periphery of the flame shape, a lighter color can be expressed, so that it looks more realistic.

  Further, by randomly switching the flame emission patterns of FIGS. 7A to 7E, irregular movement of the flame can be expressed.

  In addition, instead of configuring a plurality of LED light emitting elements with a single color, for example, by using yellow LED light emitting elements in various places, various colors can be expressed, so a more realistic flame expression can be achieved.

  As described above, according to the electronic decoration tool 10 of the present invention, a large flame can be expressed by the plurality of LED light emitting elements 25 arranged in a planar shape, and flame light emission patterns having different shapes can be formed at desired time intervals. By switching at, the movement of the flame outdoors can be expressed realistically.

  Moreover, in the electronic ornament 10 of this invention, since the flame light emission pattern is controlled by the program, it becomes possible to express various flame light emission patterns.

  Moreover, in the electronic decoration tool 10 of this description, it does not need a special process such as changing the shape of the terminals of the plurality of LED light emitting elements 25, and can be easily assembled because it can be mounted on the substrate 17. .

(Embodiment 2)
A second embodiment of the present invention will be described with reference to the drawings.

  In the description of the drawings, the components already described are denoted by the same reference numerals and description thereof is omitted.

  As shown in the configuration diagram of FIG. 8, the electronic decorative tool 80 includes a wind direction sensor 81 for detecting the wind direction.

  With such a configuration, for example, as shown in FIG. 9A and FIG. 9B, the flame emission pattern can be changed depending on the wind direction, so that the flickering of the flame due to the wind can be expressed.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to the drawings.

  In the description of the drawings, the components already described are denoted by the same reference numerals and description thereof is omitted.

  As shown in the configuration diagram of FIG. 10, the electronic decoration device 100 includes a wind speed sensor 101 for detecting the wind speed.

  With such a configuration, the wind speed can be detected, so the switching cycle of the flame emission pattern according to the strength of the wind can be changed.If the wind speed is strong, the switching cycle of the flame emission pattern is increased, and if the wind speed is weak, the flame emission pattern. By slowing down the switching cycle, it is possible to express the movement of the flame due to the wind.

  As described above in detail, according to the present invention, various flames can be expressed, and a realistic flame can be expressed.

  In the above description, the color of the LED light emitting element is described as orange. However, the present invention is not limited to this, and an LED light emitting element having three primary colors of red, blue, and green may be used.

  The technology according to the present invention is useful for applications such as electronic ornaments that use a plurality of LED light-emitting elements to express a simulated flame.

(A) The cross-sectional perspective view which shows the internal structure of the electronic ornament of this invention, (b) The sectional view which shows the internal structure of the electronic ornament of this invention (A) External view of the electronic ornament of the present invention as seen from the front, (b) Cross-sectional view of the electronic ornament of the present invention as seen from the front The block diagram of the control part of the electronic ornament of this invention The figure which shows the signal waveform which concerns on the brightness control of the electronic ornament of this invention The figure which shows the flame light emission pattern of the electronic ornament of this invention Sectional drawing seen from the side of the electronic ornament of the present invention The figure which shows the flame light emission pattern of the electronic ornament of this invention The block diagram which shows the 2nd Embodiment of this invention The figure which shows the flame light emission pattern by the 2nd Embodiment of this invention The block diagram which shows the 3rd Embodiment of this invention The figure which shows one Example of the conventional electronic ornament

Explanation of symbols

1 Flame Case 2, 3, 4, 25 LED Light Emitting Element

Claims (6)

A light-emitting part in which a plurality of LED light-emitting elements are arranged, a light diffusion plate having transparency and an uneven surface shape, a control part for controlling blinking of the individual LED light-emitting elements of the light-emitting part, A storage unit storing a program for operating the control unit and data of a plurality of flame emission patterns different in flame shape, and the light diffusing plate is spaced apart from the plurality of LED light emitting elements by a desired distance. The electronic ornament is arranged, wherein the control unit controls the blinking of the plurality of LED light emitting elements while switching the flame light emitting pattern at a desired time interval. The electronic ornament according to claim 1, wherein the flame emission pattern decreases in brightness as it goes around a flame shape. The electronic ornament according to claim 1 or 2, wherein the flame emission pattern is switched randomly. 4. The electronic ornament according to claim 1, wherein the plurality of LED light emitting elements are light emitting elements having different emission colors. 5. The electronic ornament according to claim 1, further comprising a wind direction sensor, wherein the flame emission pattern is switched according to a detection value of the wind direction sensor. 6. The electronic ornament according to claim 1, further comprising a wind speed sensor, wherein a flame emission pattern switching cycle is changed according to a detection value of the wind speed sensor.

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