WO2004032253A1

WO2004032253A1 - Light-emitting member and lighting lamp using same

Info

Publication number: WO2004032253A1
Application number: PCT/JP2003/012819
Authority: WO
Inventors: Masayoshi Hoshino
Original assignee: W. M. B Co.
Priority date: 2002-10-07
Filing date: 2003-10-07
Publication date: 2004-04-15
Also published as: AU2003268781A1; JP2004128408A; JP3682449B2

Abstract

A light-emitting member which is small as a whole and has a highly compatible socket and a lighting lamp using such a light-emitting member are disclosed. A plurality of light-emitting devices, which are light emitting diodes (LED) having different luminescent colors, are respectively connected to an integrated circuit which controls respective emissions of the light-emitting devices. The integrated circuit and the light-emitting devices are integrally housed in a bulb, thereby forming an integrated light-emitting member.

Description

Description Light-emitting member and lighting lamp using the same

The present invention relates to a light emitting member that emits light of a plurality of colors, in particular, a light emitting member using a light emitting element such as a light emitting diode, and an illumination lamp using the same. Background art

Light-emitting members with light-emitting diode (LED) elements have features such as higher brightness, lower power consumption and longer lifespan than incandescent light bulbs, and the use of colored self-luminous elements for clearer colors. It is used for various purposes. In addition, LED elements that emit blue light have been developed, and it has become possible to achieve full-color LEDs by simultaneously emitting multiple colors and mixing the emission colors, and the applicability of LEDs is expanding at a stretch.

In such a light-emitting member using colorful LED elements, multiple LED elements of different colors are enclosed in the same package (bulb) to emit light of multiple colors at the same time or to emit light of each color. By doing so, light emitting members that express different colors are well known. The specific configuration is as described in the patent document (Japanese Laid-Open Utility Model Publication No. 52-63374). In such a light emitting member, as described in Patent Document 1, a plurality of LED elements are sealed in the same package (bulb), and a lead electrode for power supply and switching of each LED element is an LED. One set of two electrodes for each element (one of the lead electrodes may be common to all LED elements), and at least three electrodes (for two-color emission) It will have.

However, such a light emitting member has the following problems. First, a light emitting member as described in Patent Document 1 requires at least three lead electrodes (for example, two on the anode side and one on the cathode side (shared)) for two-color light emission. Socket is It becomes necessary. In addition, in the case of three-color light emission, at least four wires are required, but they are not compatible with sockets of light-emitting members that emit two colors.

Also, in order to emit light of multiple colors, it is necessary to externally control the terminal, such as whether or not voltage is supplied to the terminal, or to control the intensity, and a control circuit for the attached LED element must be provided separately for each lighting. Did not. This was a factor that hindered the downsizing of lighting equipment, and it was sometimes difficult to apply it to compact lighting equipment. The present invention has been made in order to solve the problems of the related art, and an object of the present invention is to provide a light-emitting member having high socket compatibility and a compact overall size, and an illumination lamp using the same. Disclosure of the invention

A light emitting member according to the present invention includes: a plurality of light emitting elements having different emission colors; an integrated circuit connected to the plurality of light emitting elements to control light emission of each of the plurality of light emitting elements; And a light-transmitting bulb for protecting the plurality of light-emitting elements, wherein the plurality of light-emitting elements and the integrated circuit comprise: It is housed integrally in the rev.

According to the light emitting member of the present invention, the light emitting elements such as a plurality of light emitting diode elements having different emission colors such as red, green, and blue are integrated so that the light emission of each of the plurality of light emitting elements is controlled. Each connected to a circuit. In the integrated circuit, the order of lighting the light emitting elements, the combination of the light emitting elements to be turned on (including simultaneous lighting and independent lighting), the lighting time, the intensity of lighting (current adjustment), and the like are set in advance. The integrated circuit and the outside (socket) can be connected via a pair of lead electrodes, and power is supplied from the lead electrodes to the integrated circuit. When power is supplied from the lead electrode, power is supplied to each of the light emitting elements based on the setting of the integrated circuit, and various color changes are realized.

The integrated circuit and the plurality of light emitting elements are integrally housed in a common bulb to form an integrated light emitting member. As described above, since power is supplied to each light-emitting element via the integrated circuit, a pair of lead electrodes for supplying power to the light-emitting member has a positive electrode and a negative electrode regardless of the number of light-emitting elements.

One by one (one pair) is sufficient. Therefore, even if the light emitting members have different numbers of light emitting elements, they can be interchanged with the same socket. Accordingly, the lighting device of the present invention can be easily changed to a lighting device of a plurality of colors by attaching the light emitting member of the present invention in place of the light emitting member of the single color.

In addition, since various color changes can be expressed without using external control means, the present invention can be applied to a compact lighting apparatus having no room for external control means.

Preferably, it is configured to further include a signal electrode connected to the integrated circuit and for externally controlling the integrated circuit.

In this case, the type, time, and the like of the light emitting element to be turned on are set in advance in the integrated circuit by a predetermined control signal (such as a pulse signal) from the signal electrode. When power is supplied from the lead electrodes to the integrated circuit and a control signal is input from the outside through the signal electrode separately from the lead electrodes, the integrated circuit is controlled to express a color change based on the control signal. I do. Thus, even after the formation of the light emitting member of the present invention, the color change pattern can be changed. It is also possible to sequentially control the color change by an external control signal. Therefore, a wider color change pattern can be controlled. Furthermore, since the control signal from the outside only needs to change the frequency of each signal pulse, the external control unit does not need a complicated one and keeps the compactness to the extent that compaction is not hindered. be able to.

The number of signal electrodes may be one or more.

Further, the illumination lamp according to the present invention is configured such that at least one of the light-emitting members, a light-transmitting container for housing the light-emitting members, and the lead electrode of the light-emitting members are electrically connected to each other. And a base attached to the container, wherein the container has a light for reflecting light from the light emitting member to at least a part of the inside of the container. A reflection unit is provided.

According to the illumination lamp of the present invention, at least one of the light-emitting members is accommodated in the light-transmitting container. In addition, the lead electrode of the light emitting member and the base are connected to enable external energization. The base and the container are attached to form an integrated lighting lamp. Further, a light reflecting portion for reflecting light from the light emitting member is formed in at least a part of the inside of the container.

When the light-emitting member is turned on, in the light-transmitting container, the light from the light-emitting member proceeds straight in the irradiation direction of the light-emitting member. On the other hand, in the light reflecting portion, the light of the light emitting member is reflected, so that the shape of the light reflecting portion appears to emerge (mainly looks shiny). In this way, the light-reflecting part in the container appears to be raised by the lighting of the light-emitting member, so that the light emission is changed by using a conventional solid resin containing a diffusing material as the container. Various changes can be realized as compared with those that have been made. In addition, since the light reflecting portion is not uniform like a diffusing material and can be formed in various shapes, the degree of freedom of creativity can be increased. Furthermore, a decorative illumination lamp in which a plurality of colors change vividly can be obtained by the integrated circuit in the light emitting member.c The color of the light reflecting portion is accommodated in the loaded light emitting member. It is preferably one of the colors produced by the plurality of light emitting elements. This is because light having the same wavelength as the color of the light reflecting portion is mainly reflected. Note that a plurality of colors may be used for the light reflecting portion.

Preferably, the light reflecting portion is configured to be formed along a direction in which the light emitting member emits light.

In this case, the light from the light emitting member is less likely to be blocked by the light reflecting portion, and the light from the light emitting member can be reflected by the light reflecting portion while transmitting the light through the entire container. Therefore, the reflection at the light reflecting portion is also uniformed, and a decorative illumination lamp that changes more vividly can be obtained.

Here, the light reflecting portion along the light irradiation direction of the light emitting member may be a tubular body parallel to the light irradiation direction of the light emitting member, or a plurality of the tubular body divided in the circumferential direction. Ah Alternatively, a plate-like body that extends long in parallel with the light irradiation direction of the light-emitting member may be provided with a vertical twist in the longitudinal direction.

Preferably, the light reflecting portion is configured such that a plurality of rods parallel to a light irradiation direction of the light emitting member are arranged in a ring shape.

In this case, the balance between the light transmitted through the transparent container and the light reflected by the light reflecting portion is good, and an illumination lamp that changes vividly without lowering the illuminance can be formed.

In addition, the number of rods as the light reflecting portion, the diameter of the ring to be disposed, and the like can be variously adopted from the diameter of the rods, the size of the container, and the like. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic diagram of a light emitting member according to the first embodiment of the present invention. FIG. 2 is a diagram showing an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG.

FIG. 3 is a schematic diagram of a light emitting member according to a second embodiment of the present invention. FIG. 4 is a diagram showing an example of mounting a light emitting element and an integrated circuit on the light emitting member of FIG.

FIG. 5 is a schematic diagram of a light emitting member according to a third embodiment of the present invention. FIG. 6 is a schematic sectional view of an illumination lamp according to a fourth embodiment of the present invention. FIG. 7 is a schematic sectional view of another embodiment of the illumination lamp according to the present invention. FIG. 8 is a schematic sectional view of another embodiment of the illumination lamp according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic diagram of a light emitting member according to a first embodiment of the present invention. Figure 1 (a) is a view of the light emitting member viewed from the side, and Figure 1 (b) is a view of the light emitting member viewed from below (lead electrode side). FIG.

As shown in FIG. 1, the light-emitting member 10 of the present embodiment includes a plurality of light-emitting elements 1 having different emission colors, and is connected to the plurality of light-emitting elements 1. A pair of lead electrodes 4a and 4n in which an integrated circuit 2 for controlling the circuit and an external (socket) and the integrated circuit 2 are electrically connected; and a light transmissivity for protecting the plurality of light emitting elements 1. Valve 3 is provided. The plurality of light emitting elements 1 and the integrated circuit 2 are integrally sealed in the bulb 3. Although the bulb 3 of the present embodiment uses a colorless and transparent resin, a colored resin or a translucent resin may be used as long as it has a light transmitting property. According to the light emitting member 10 of FIG. 1, the light emitting element 1 which is a plurality of light emitting diode (LED) elements having different emission colors such as red, green, blue, etc. Each is connected to an integrated circuit 2 whose emission control is performed. In the present embodiment, three light emitting elements 1 of different colors are mounted on one surface with the substrate 6 interposed therebetween, and the integrated circuit 2 is mounted on the other surface.

FIG. 2 is a diagram showing an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. FIG. 2 (a) is a diagram showing the light emitting element side (upper surface in FIG. 1 (a)), and FIG. 2 (b) is a diagram showing the integrated circuit side (lower surface in FIG. 1 (a)). As shown in FIG. 2 (a), the light-emitting elements lr (red), lg (green), and lb (blue) are provided on the substrate 6. Each of the light emitting elements 1r, 1g, 1b emits light when the anodes 8ra, 8ga, 8ba and the cathodes 8rn, 8gn, 8bn, which are electrodes, are energized. Further, as shown in FIG. 2B, the integrated circuit 2 is provided on the back surface of the substrate 6. The integrated circuit 2 has power supply terminals 7 a and 7 n for power supply, and outputs to the anodes 8 &, 8 ga, 8 ぉ and the cathodes 8 1, 8 gn, 8 bn of the light emitting elements 1 r, 1 g, 11. Terminals 9 ra, 9 ga, 9 ba, 9 n are provided. In the present embodiment, the cathode-side output terminal 9n is configured by bundling the cathodes 8rn, 8gn, and 8bn of the light-emitting elements 1r, 1g, and lb into one. Here, in the present embodiment, a plurality of light emitting elements 1 and integrated circuits 2 are installed on both sides of one substrate 6, but each of a plurality of light emitting elements 1 and integrated circuit 2 is It may be formed on a single substrate and connected by a bonding wire or the like.

In the integrated circuit 2, the order in which the light emitting elements 1 are turned on, the combination of the light emitting elements 1 to be turned on (including simultaneous lighting and single lighting), the lighting time, the intensity of lighting (current adjustment), and the like are set in advance. I have. For example, red green → blue → yellow (red + green) → cyan (green + blue) → magenta (blue + red) white (red + green + blue) → red → ... (lighting time is 5 seconds each) ) Set to turn on. At this time, when the current adjustment is further performed, the illuminance of the adjusted light-emitting element 1 changes, so that the brightness and the saturation can be changed. Therefore, a light-emitting member capable of full-color light emission can be obtained.

The integrated circuit 2 and the outside (socket) can be connected through the lead electrodes 4a and 4n, and the power (constant) is supplied from the lead electrodes 4a and 4n to the integrated circuit 2 connected by the bonding wire 7. Is supplied. When power is supplied from the lead electrodes 4a and 4n, power is supplied to each of the light emitting elements 1 based on the settings of the integrated circuit 2, and various color changes are realized.

Then, the integrated circuit 2 and the plurality of light emitting elements 1 are integrally housed in a common valve 3 as shown in FIG. 1 to form an integrated light emitting member 10. In the present embodiment, an integral light-emitting member 10 is integrally formed in a bulb 3 made of a transparent resin.

Here, the bulb 3 of the present embodiment uses a cylinder having a size of 0.5 (diameter of 5 mm) and the upper part of the light emitting element 1 in a lens shape. Various diameters such as ø10 and ø10 sizes can be adopted, and any valve shape such as a prism can be adopted, and the presence or absence of a lens shape is not particularly limited.

As described above, since power is supplied to each light emitting element 1 via the integrated circuit 2, the lead electrodes 4a and 4n for supplying power to the light emitting member 10 are connected to the anode regardless of the number of the light emitting elements 1. 4a and one cathode 4n will suffice. Furthermore, a single color light emitting member (one By mounting the light emitting member of the present invention in place of a general monochromatic LED device, a lighting device capable of emitting light of multiple colors can be easily obtained. Therefore, even if the number of the light-emitting elements 1 is different, the same socket can be used for interchangeability.

Furthermore, since various color changes can be expressed without using an external control means, the present invention can be applied to a compact lighting apparatus having no room for external control means.

In the present embodiment, three light emitting elements 1 having different colors are used, but two, four, or more light emitting elements may be used. Further, this does not prevent the use of a plurality of light-emitting elements of the same color.

Next, a second embodiment according to the present invention will be described. FIG. 3 is a schematic diagram of a light emitting member according to a second embodiment of the present invention. Fig. 3 (a) is a diagram of the light emitting member viewed from the side, Fig. 3 (b) is a diagram of the light emitting member viewed from below (lead electrode side), and Fig. 3 (c) is a schematic diagram of the light emitting member. It is a perspective view. In FIG. 3C, the inside of the valve 3 is omitted. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The difference between the light emitting device 11 of the present embodiment and the first embodiment is that, as shown in FIG. 3, apart from the lead electrodes 4a and 4n, the light emitting device 11 is connected to the integrated circuit 2, That is, a signal electrode 5 for externally controlling the circuit 2 is further provided.

FIG. 4 is a diagram showing an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. Fig. 4 (a) shows the light emitting element side (upper side in Fig. 3 (a)), and Fig. 4 (b) shows the integrated circuit side (lower side in Fig. 3 (a)). . In the light emitting member 11 of the present embodiment, as shown in FIG. 4B, the integrated circuit 2 provided on the back surface of the substrate 6 is provided with a signal terminal 7 s for inputting an external signal. . The signal terminal 7s and the signal electrode 5 are connected by a bonding wire 7, similarly to the lead electrodes 4a and 4n.

The integrated circuit 2 in the present embodiment has a predetermined control signal from the signal electrode 5 in advance. (The number of pulse signals per unit time, voltage change, etc.) sets the type, time, etc. of the light emitting element 1 to be turned on. When power is supplied from the lead electrodes 4 a and 4 n to the integrated circuit 2 and a control signal is input from the outside through the signal electrode 5, the integrated circuit 2 is controlled to express a color change based on the control signal. I do. As described above, even after the formation of the light emitting member 11, the color change pattern can be changed. It is also possible to sequentially control the color change by an external control signal. Therefore, a wider color change pattern can be controlled. Furthermore, since external control signals can be easily controlled by controlling the voltage change, etc., the externally provided control unit does not need to be complicated and can be kept to a level that does not hinder compactness. it can.

The number of signal electrodes 5 may be one or more. When there are a plurality of signal electrodes 5, control from a plurality of control means, which are separate systems, can be transmitted simultaneously.

Further, in the present embodiment, as shown in FIG. 3 (c), the lead electrodes 4a, 4n and the signal electrodes 5 are formed in a row. In this case, the lead electrodes 4a, 4n and the signal electrode 5 can be easily manufactured by press-molding the tape-shaped metal at a time. Further, by forming these electrodes in a line, the bonding between the light emitting element 1 and the integrated circuit 2 can be simplified, and the production efficiency can be increased.

Another arrangement example of the lead electrodes 4a and 4n and the signal electrode 5 will be described. FIG. 5 is a schematic diagram of a light emitting member according to a third embodiment of the present invention. FIG. 5 (a) is a view of the light emitting member viewed from below (lead electrode side), and FIG. 5 (b) is a schematic perspective view of the light emitting member. In FIG. 5B, the inside of the valve 3 is omitted. Also in this embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted.

The light emitting member 12 shown in FIG. 5 shows another example of the arrangement of the lead electrodes 4a and 4n and the signal electrode 5, and the other configuration is the same as that of the second embodiment. As shown in Fig. 5, the lead electrodes 4a, 4n and the signal electrode 5 They are arranged so that they do not line up in a row, and spread radially around the mounting part. Since the lead electrodes 4a and 4n and the signal electrode 5 are not arranged in a line, a socket for the lead electrodes 4a and 4n and a socket for the signal electrode 5 can be provided separately. This enables external control while diverting a conventional single color socket. In addition, the structure shown in FIG. 5 facilitates surface mounting because when the present light emitting member 12 is surface-mounted on a pre-cited wiring board, it is not necessary to drill holes for the lead electrodes 4 a and 4 n and the signal electrode 5. Can be done.

Next, an illumination lamp using the light emitting member as described in the above embodiment will be described. FIG. 6 is a schematic sectional view of an illumination lamp according to a fourth embodiment of the present invention. Fig. 6 (a) is a diagram showing a cross section of the illumination lamp perpendicular to the mounting part (surface) of the housing and the base. FIG.

As shown in FIG. 6 (a), the illumination lamp according to the present embodiment includes at least one light-emitting member 10, and a light-transmitting housing 20 for housing the light-emitting member 10. And a base 24 attached to the housing 20 while being electrically connected to the lead electrodes 4 a and 4 n of the light emitting member 10. At least a portion is provided with a light reflecting portion 21 for reflecting light from the light emitting member 10.

In the present embodiment, the container 20 is formed of a transparent resin and is solidly formed, and at least one of the light-emitting member mounting portions 23, which is a portion covered by the base 24 (see FIG. 6 (a) has a plurality of loading holes 22. Further, the light emitting member 10 is loaded into at least one of the loading holes 22.

According to the illumination lamp of the present embodiment, at least one of the light-emitting members 10 is accommodated in the light-transmitting container 20. In addition, the lead electrodes 4a and 4n of the light emitting member 10 are connected to the base 24 to enable external energization. The base 24 and the container 20 are attached to form an integrated lighting lamp. Further, a light reflecting portion 21 for reflecting light from the light emitting member 10 is formed in at least a part of the inside of the container 20. The container 20 formed of a solid transparent resin has at least one (a plurality of holes in FIG. 6 (a)) loading hole 24 formed in the light emitting member mounting portion 23. One light emitting member 10 is loaded. Further, the light reflecting portion 21 is formed of a colored resin in at least a part of the inside of the container 20.

In the present embodiment, a rectifier circuit 25 for current adjustment (constant voltage) is connected between the light emitting member 10 and the base 24. Here, the base 24 in the present embodiment employs an E26 type base, but is not limited to this, and bases having other diameters and other shapes can be used. Further, in the present embodiment, the light emitting member 10 in the first embodiment is used as the light emitting member, but the light emitting member 11 in the second embodiment and the light emitting member 11 in the third embodiment are used. The light emitting member 12 may be used. At this time, a signal electrode terminal for controlling light emission may be provided outside the illumination lamp separately from the base 24, or as shown in FIG. 8, one or a plurality of terminals accommodated in the housing 20. The control circuit 26 for controlling the light emission of the light emitting member 11 (only one is shown in FIG. 8 for simplicity) may be provided in the housing 20.

When the light emitting member 10 is turned on, in the light-transmitting container 20, the light of the light emitting member 10 is irradiated in the irradiation direction of the light emitting member 10 (mainly in the irradiation direction above the light emitting member 10). L) Proceed immediately. On the other hand, the light reflecting portion 21 reflects the light from the light emitting member 10, so that when viewed from the side (the direction M which is a direction perpendicular to the irradiation direction L), the light reflecting portion appears to be raised ( It mainly looks shiny).

As described above, since the light reflecting portion 21 in the container 20 appears to be raised by the lighting of the light-emitting member 10, a conventional solid resin containing a diffusing material is used as the container. By using this, various changes can be realized as compared with those in which the light emission is changed. In addition, since the light reflecting portion 21 is not uniform like a diffusing material and can have various shapes, the degree of freedom of creativity can be increased. In addition, The integrated circuit 2 in the optical member 10 can provide a decorative illumination lamp in which a plurality of colors change vividly.

Although the light emitting member 10 in the present embodiment is loaded only in the center loading hole 22, it may be loaded in all of the plurality of loading holes 22, or may be loaded in the plurality of loading holes 22. Some may be loaded. When a plurality of light-emitting elements 10 are mounted, light-emitting members 10 having different combinations of light-emitting elements 1 may be mounted.

Further, the color of the light reflecting portion 21 is preferably one of the colors created by the plurality of light emitting elements 1 sealed in the loaded light emitting member 10. This is because light having the same wavelength as the color of the light reflecting portion 21 is mainly reflected. It is preferable that the light reflecting portion 21 be formed in white in order to make the light reflecting portion 21 stand out and show all the emission colors of the light emitting member 10. Note that a plurality of colors may be used for the light reflecting portion 21. In this case, if the shape of the light reflecting portion 21 is formed differently for each of a plurality of colors, the light reflecting portion 21 that emerges each time light of a color corresponding to the color of the light reflecting portion 21 is turned on. Since the shapes are different, it is possible to make the illumination lamp interesting.

Further, in the present embodiment, as shown in FIG. 6 (b), the light reflecting portion 21 includes a plurality of rods parallel to the light irradiation direction L of the light emitting member 10 in a ring shape. It is configured to be deployed.

In order to form the light reflecting portion 21 inside the solid container 20, a pipe having a diameter for forming the light reflecting portion was inserted inside the pipe having a diameter for forming the container. In this state, it is possible to apply a conventional method of pouring molten resin into the inside of each pipe and simultaneously extruding and forming the resin.

In this case, the balance between the light passing through the container 20 and the light reflected by the light reflecting portion 21 is good, and an illumination lamp that changes vividly without lowering the illuminance can be formed.

Note that the number of rods as the light reflecting portion 21 and the diameter of the arranged ring can be variously adopted depending on the diameter of the rods, the size of the container 20, and the like. Next, another embodiment of the illumination lamp according to the present invention will be described. FIG. 7 is a schematic sectional view of another embodiment of the illumination lamp according to the present invention. FIG. 7 (a) shows the fifth embodiment, FIG. 7 (b) shows the sixth embodiment, and FIG. 7 (c) shows the seventh embodiment. FIG. 7 shows a cross section of an illumination lamp corresponding to a cross section taken along line AA of FIG. 6A in the fourth embodiment.

Here, in the illumination lamp of the fifth embodiment, as shown in FIG. 7A, the light reflecting portion 21 along the light irradiation direction L of the light emitting member 10 The illumination lamp according to the sixth embodiment is configured so as to be a tubular body parallel to the irradiation direction of the light, and as shown in FIG. The reflecting portion 21 is configured such that the tubular body of the second embodiment is divided into a plurality of pieces in the circumferential direction. In the seventh embodiment, as shown in FIG. The light reflecting portion 21 along the light irradiation direction L of the member 10 is a plate-like body that extends long parallel to the light irradiation direction L of the light-emitting member 10 and extends in the longitudinal direction of the plate-like body. It is configured so that it is provided with a twist perpendicular to it.

What is common to these embodiments is that the light reflecting portion 21 is formed along the light irradiation direction L of the light emitting member 10. The fourth embodiment is common in this respect.

In this case, the light from the light emitting member 10 is less likely to be blocked by the light reflecting portion 21, and the light from the light emitting member 10 can be reflected by the light reflecting portion 21 while being transmitted through the entire housing 20. . Therefore, the reflection in the light reflecting portion 21 is also made uniform, and a decorative illumination lamp that changes more vividly can be obtained.

Also in these embodiments, a plurality of colors may be used for the light reflecting portion 21. In particular, in the illumination lamp according to the seventh embodiment, as shown in FIG. 7 (c), the color is formed on one surface 211 and the other surface 212 of the light reflecting portion 21 which is a plate-like body. By making them different, it is possible to make the lighting lamp more interesting.

For example, while using the light reflecting portion 21 in which the surface 211 is yellow and the surface 211 is blue, Light-emitting member having two light-emitting elements 1 that emit light of color and blue (in the light-emitting member 10 of the first embodiment, the red light-emitting element 1r and the green light-emitting element 1g are caused to emit light simultaneously. May be controlled so as to realize yellow light emission). In this case, if the integrated circuit 2 is set so as to alternately emit the yellow light emission and the blue light emission, only the yellow surface 2 11 1 which is complementary to the blue color appears in the yellow light emission, and the blue light emission appears. Sometimes, only the blue surface 2 12, which is complementary to yellow, appears to float, and the surface 2 1 1 and the surface 2 1 2 emit light alternately, so that it is as if the light reflector 21 is rotating. It is possible to produce such an interest.

According to the light emitting member of the present invention, since power is supplied to the light emitting element via the integrated circuit, the lead electrodes for supplying power to the light emitting member are each of an anode and a cathode regardless of the number of light emitting elements. One by one will do. Therefore, even if the light emitting members have different numbers of light emitting elements, they can be interchanged with the same socket. Accordingly, the light emitting member of the present invention can be attached to the light emitting member of the present invention in place of the light emitting member of a single color, so that the lighting device of the single color light emission can be easily changed to the lighting device of the plural color light emission.

Claims

The scope of the claims

1. A plurality of light-emitting elements having different emission colors, an integrated circuit connected to the plurality of light-emitting elements, and controlling the light emission of each of the plurality of light-emitting elements, and the external circuit and the integrated circuit being electrically connected. A pair of lead electrodes disposed on the substrate, and a light-transmitting bulb for protecting the plurality of light-emitting elements,

The light emitting member, wherein the plurality of light emitting elements and the integrated circuit are integrally housed in the bulb.

2. The light emitting member according to claim 1, further comprising a signal electrode connected to the integrated circuit and for externally controlling the integrated circuit.

3. A light-emitting member according to claim 1 or 2, a light-transmissive container for housing the light-emitting member, and an electrically conductive connection to the lead electrode of the light-emitting member. A base attached to the container,

The illumination lamp, wherein a light reflecting portion for reflecting light from the light emitting member is provided in at least a part of the housing.

4. The illumination lamp according to claim 3, wherein the light reflecting portion is formed along a direction in which the light emitting member emits light.

5. The illumination lamp according to claim 3, wherein the light reflecting portion is formed by arranging a plurality of rods parallel to a light irradiation direction of the light emitting member in a ring shape.