JP6405792B2 - Light emitting module, lighting lamp, and street light - Google Patents

Description

  The present invention relates to a light emitting module in which a light source such as an LED is mounted, an illumination lamp using the light emitting module, and a street lamp provided with the illumination lamp.

  Conventionally, for an illumination lamp having a light emitting unit using an LED as a semiconductor light emitting element and having a light distribution extending all around, a light emitting module on which the LED is mounted and a globe provided to cover the light emitting module are provided. There was something to have. The LED, which is the light emitting part of the light emitting module, faces the inner surface of the globe and is disposed close to the globe. Light emitted from the LED is transmitted through the globe and emitted.

Japanese Unexamined Patent Publication No. 2011-070971

  In a conventional illumination lamp, an LED, which is a light emitting part of a light emitting module, is disposed opposite to the inner surface of the globe and in proximity to the globe. Therefore, not only when the globe is made of a transparent material, but also when the globe is made of a diffusive transmission material, the luminous intensity directly above the LED is high, and there is a possibility of causing glare. Glare refers to “glare” that causes the user to feel uncomfortable or difficult to see, and is caused by the brightness level of the light source, the balance with the brightness of the surroundings, brightness differences, and the like.

  The present invention has been made to solve the above-described problems, and its purpose is to suppress glare by preventing a high luminance range emitted from a light source LED or the like from being emitted directly to the outside. Another object is to provide a light emitting module and an illumination lamp.

Emitting module and an illumination lamp according to the present invention comprises a plurality of the substrate on which the light-emitting elements are arranged a light source, the substrate of the multiple, the light emitting elements are arranged on at least one surface along the central axis Rutotomoni, the substrate to each other adjacent is held radially to form a central angle of less than 90 degrees, the light emitting element, the front of the front Symbol light emitting element arranged on one of the substrates in the substrate adjacent The light emitted to the front is disposed at a position where it is blocked by the other substrate disposed in front of the light emitting element.

  According to the present invention, among the light emitted from the light emitting element that is a light source, in particular, high-luminance light emitted in front of the light emitting element is blocked by another substrate and directly to the outside of the illumination lamp. Since the light emitting element is arranged on the substrate so as not to be emitted, the maximum luminance of the irradiation light emitted from the illumination module to the outside of the illumination lamp can be reduced, and glare can be suppressed.

It is a perspective view which shows the external appearance of the illumination lamp which concerns on Embodiment 1 of this invention. It is the front view and side view which show the structure of the whole illumination lamp which concerns on Embodiment 1 of this invention. It is a figure which shows the electrical connection relationship between the LED mounting board | substrate and base substrate in the light emitting module which concerns on Embodiment 1 of this invention. In the light emitting module which concerns on Embodiment 1 of this invention, it is a figure for demonstrating the emission angle of the emitted light radiate | emitted directly out of a light emitting module from LED. It is a figure which shows an example of the directional characteristic of LED mounted in the light emitting module which concerns on Embodiment 1 of this invention. It is a figure which shows the relative luminance level of the light directly radiate | emitted from the light emitting module which concerns on Embodiment 1 of this invention. It is a figure which shows the example which changed the arrangement position of LED in the LED mounting board | substrate of the light emitting module which concerns on Embodiment 1 of this invention. In the light emitting module which concerns on Embodiment 1 of this invention, it is a figure which shows the range of the emission angle with which the emitted light radiate | emitted from LED is interrupted | blocked by the other LED mounting board | substrate arrange | positioned ahead. It is a figure which shows the assembly structural example of the light emitting module which concerns on Embodiment 2 of this invention. It is a figure which shows the assembly structural example of the light emitting module which concerns on Embodiment 3 of this invention. It is a figure which shows the shape of the LED mounting board | substrate of the light emitting module which concerns on Embodiment 4 of this invention. It is a figure which shows the output angle directly radiate | emitted from the light emitting module at the time of reducing the angle difference between the board | substrates which comprise the light emitting module which concerns on this invention. It is a figure which shows the example which mounted LED in the both surfaces in the LED mounting board of the light emitting module which concerns on Embodiment 5 of this invention. It is the side view seen from the top direction of the light emitting module which concerns on Embodiment 6 of this invention. It is a figure which shows the emission angle and luminance level of the light emitting module which concern on Embodiment 6 of this invention. It is a figure which shows the structure of the street lamp which concerns on Embodiment 7 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof may be omitted or simplified as appropriate. In addition, this invention is not limited by the form of drawing shown below. In the description of the embodiment, the directions such as “top”, “bottom”, “left”, “right”, “front”, “back”, “front”, “back” are as such for convenience of explanation. However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like. And about the structure as described in a specification, the material, a shape, and a magnitude | size can be suitably changed within the scope of this invention.

Embodiment 1 FIG.
1A and 1B are perspective views showing the appearance of an illumination lamp according to Embodiment 1 of the present invention, in which FIG. 1A is a perspective view seen from the top (outer tube bulb tip) side of the illumination lamp, and FIG. It is the perspective view seen from the (base) side. 2 is a front view and a side view showing the overall configuration of the illumination lamp according to Embodiment 1 of the present invention, (a) is a side view seen from the top side of the illumination lamp, and (b) is a side view. Front view, (c) is a side view seen from the bottom side of the illumination lamp. Hereinafter, a description will be given with reference to FIGS. 1 and 2.

  The illumination lamp 100 includes an outer tube bulb 1 forming an outer surface thereof, a light emitting module 2 housed inside the outer tube bulb 1, a support portion 3 for supporting the light emitting module 2 in the outer tube bulb 1, an outer tube And a base 4 provided at an end of the valve.

  The outer tube bulb 1 is a glass cover that forms the outline of the illumination lamp 100, and one end of the cylindrical shape is closed in a hemispherical shape, and the other end side of the cylindrical shape is narrowed and the base 4 is fitted. The outer tube bulb 1 shown in FIGS. 1 and 2 uses transparent glass, but may be one that scatters light using ground glass or one that uses a light-transmitting resin.

  A light emitting module 2 is accommodated inside the outer tube bulb 1. The light emitting module 2 includes a single circular base substrate 5 and eight rectangular LED mounting substrates 7 on which five semiconductor light emitting elements (LEDs) 6 as light emitting elements are mounted. The base substrate 5 does not necessarily have a circular shape, and may have another shape such as a polygon. In the present embodiment, the LED mounting substrate 7 is composed of an aluminum base substrate, is erected vertically from the base substrate 5, and is attached to the base substrate 5 with screws 8 in a state of being radially disposed from the center of the base substrate 5. It is fixed.

  Power is supplied from the base 4 to the light emitting module 2 to the base substrate 5 by the substrate lead wire 9, and LED lighting power is supplied to each LED mounting substrate 7 through a pattern (not shown) laid on the base substrate 5. Is supplied. FIG. 3 shows an electrical connection relationship between the LED mounting board 7 and the base board 5. In this embodiment, the LED mounting boards 7 are electrically connected in series via the base board 5. ing. A specific electrical connection method between the base substrate 5 and the LED mounting substrate 7 may be a connector such as a quick connection terminal, or may be performed by screwing terminals or soldering.

  In each LED mounting substrate 7, the five LEDs 6 are arranged and mounted one by one at regular intervals in the longitudinal direction of the LED mounting substrate 7, and are electrically connected in series. Each LED 6 mounted on the LED mounting substrate 7 is disposed at a position where outgoing light emitted to the front in front of the center is blocked by another LED mounting substrate 7 disposed in front of the LED 6, and from the LED 6 to the front in front of the center. In this configuration, the light emitted from the illumination lamp 100 is not directly irradiated to the outside of the illumination lamp 100.

  Next, the support part 3 and the base 4 will be described. The support portion 3 includes a stem 10, a support column 11, a light emitting module support steel wire 12, and a base lead wire 13. The stem 10 is made of glass and has a cylindrical shape, and is fused to the base side of the outer tube valve 2. The support pillar 11 is a metal wire extending from the tip of the stem 10 toward the light emitting module 2, and the tip is perpendicular to the center of the light emitting module supporting steel wire 12 that supports the base substrate 5 of the light emitting module 2. It is welded to. The light emitting module supporting steel wire 12 has a brim-cap shape in which both end portions are welded to the back surface of the surface on which the LED mounting substrate 7 of the base substrate 5 is erected and the central portion rises toward the stem 10. It is welded to the support column 11 at the center. The base lead wires 13 are a pair of lead wires that penetrate the stem 10 in the longitudinal direction and are connected to the base 4. One end of the positive lead wire lead 13 a is soldered to the center of the tip of the base 4, the other end is connected to the positive substrate lead 9 a, and one negative lead lead wire 13 b is connected to the side of the base 4. The other end is connected to the negative electrode substrate lead 9b. As described above, the light emitting module 2 is held and fixed at a predetermined position inside the outer tube bulb 1 by the stem 10, the support pillar 11, and the light emitting module supporting steel wire 12, and supplied from the base 4. The transmitted electric power is transmitted to the light emitting module 2 through the base lead wire 13 to light the LED 6.

  FIG. 4 is a diagram for explaining an emission angle emitted directly to the outside of the light emitting module 2 out of the emitted light emitted from the LED 6 in the light emitting module 2 of the illumination lamp 100 according to the present embodiment. is there. In the present embodiment, as shown in FIG. 4, the eight LED mounting boards 7 on which the LEDs 6 that are light emitting elements are mounted are held so that the adjacent LED mounting boards 7 form a central angle of 45 degrees. Thus, a radial light emitting module 2 is configured.

  The LED 6 is disposed in a position where the emitted light emitted from the LED 6 to the front in front of the center thereof is blocked by another LED mounting board located in front of the LED mounting board 7 on which the LED 6 is mounted, that is, in front of the LED 6. The other LED mounting substrate is disposed on the center axis side of the light emitting module 2 with reference to a position p obtained by vertically projecting the end portion of the LED mounting substrate onto the LED mounting substrate 7.

  When the LED 6 is arranged as shown in FIG. 4, the emitted light from the LED 6 having an emission angle of θ1 or less is blocked by the LED mounting board in front of the LED 6 and directly emitted to the outside of the light emitting module 2. However, the emitted light directly emitted to the outside of the light emitting module 2 is limited to the emitted light having an emission angle in the range of θ1 to 90 degrees.

  FIG. 5 is a diagram illustrating an example of the directivity characteristics of the emitted light of the LED 6 in the present embodiment, L0 is an arrow indicating the intensity of light emitted from the LED 6 to the front front, and L1 is an emission angle from the LED 6. It is an arrow indicating the intensity of light emitted at θ1. The length of the arrow indicates the degree of light intensity. Further, FIG. 6 shows a relative luminance level corresponding to an emission angle of light emitted directly from the LED 6 to the outside of the light emitting module 2 in the present embodiment (light emitted at an emission angle of 0 degree (front front)). It is a figure which shows a luminance level as 1).

  In the present embodiment, the luminance level of the emitted light directly emitted from the LED 6 to the outside of the light emitting module 2 becomes the maximum value at the emission angle θ1, and in the example shown in FIG. On the other hand, the value is 0.5 or less. In this embodiment, the luminance level becomes smaller as the emission angle becomes larger (θ1 <θ2 <θ3) (B1> B2> B3).

  Further, as shown in FIG. 7, by arranging the LED 6 at a position close to the central axis of the light emitting module 2, the LED 6 emits directly to the outside of the light emitting module 2 without being blocked by the front LED mounting substrate 7. The minimum value θ4 of the emission angle of the emitted light is larger than the minimum value θ1 of the direct emission light of FIG. 5 and further suppresses the luminance level of the emission light directly emitted from the LED 6 to the outside of the light emitting module 2. can do.

  FIG. 8 shows a range of emission angles in which the emitted light emitted from the LED 6 is blocked by another LED mounting substrate arranged in front of the light emitting module 2 according to the present embodiment (on the central axis side of the light emitting module 2: emitted). The angle is 0 degree to θ5, the outer peripheral side of the light emitting module 2: 0 degree to θ1, θ1 <θ5). In the present embodiment, part of the light emitted from the LED 6 and incident on the LED mounting substrate 7 disposed in the front is specularly reflected and partly diffusely reflected. A part of the specularly reflected or diffusely reflected light is emitted to the outside of the light emitting module 2 and the remaining reflected light is incident on the LED mounting substrate 7 on which the LED 6 is mounted, and a part of the reflected light is specularly reflected. , Some are diffusely reflected. In this way, the light having repeated regular reflection or diffuse reflection has a lower peak luminance level than light emitted directly from the LED 6.

  Here, the LED mounting substrate 7 may be an aluminum base substrate as it is, but in order to increase the diffuse reflectance, a substrate having a white paint applied to the back surface and the surface thereof may be used. In this case, the white paint can further improve the diffuse reflectance of the LED mounting substrate 7 by using a matte type. By increasing the diffuse reflectance in this way, the peak luminance level of the light emitted from the light emitting module 2 can be suppressed, and the average luminance level of the light emitted from the entire light emitting module can be increased. As a result, the light emitted from the light emitting module 2 not only suppresses the peak luminance level but also suppresses the luminance difference. That is, the light irradiated from the illumination lamp 100 can obtain high-quality irradiation light with suppressed glare and increased uniformity.

Embodiment 2. FIG.
FIG. 9 is a diagram illustrating an assembly configuration example of the light emitting module according to Embodiment 2. FIG. 9A shows the LED mounting substrate 7a and the base substrate 5a individually, and FIG. 9B shows the assembly of the light emitting module. The LED mounting substrate 7a is mounted with LEDs 6 as light emitting elements at a predetermined interval in the middle of one surface thereof, and has a connector terminal portion 14 coupled to the base substrate 5a at one end. The base substrate 5a has a circular shape, and eight substrate holding connectors 15 for holding and fixing the LED mounting substrate 7a radially from the center thereof are arranged and mounted. The connector terminal portion 14 of the LED mounting board 7a can be inserted into the board holding connector 15 of the base board 5a and held and fixed in the direction of the arrow shown in FIG. 9B. Thus, in the present embodiment, the plurality of LED mounting boards 7a are held and fixed in a radial manner without using a fastening member such as a screw, and the base board 5a and the base board 5a are electrically connected via the board holding connector 15 and the connector terminal portion 14. Connected.

Embodiment 3 FIG.
FIG. 10 is a diagram illustrating an assembly configuration example of the light emitting module according to Embodiment 3, in which a substrate support column 16 for supporting the LED mounting substrate 7a is provided at the center of the base substrate 5b. FIG. 10A shows a plan view when the substrate support column 16 is provided, and FIG. 10B shows a perspective view of the base substrate 5b with the substrate support column. In the direction of the arrow shown in FIG. 10B, the connector terminal portion 14 of the LED mounting board 7a is inserted into the board holding connector 15 of the base board 5b, and as shown in FIG. The end portion of the LED mounting substrate 7 a located on the side is sandwiched between the substrate holding portions 17 of the substrate support columns 16 and is held and fixed. Thus, in this Embodiment, since the long side edge part of LED mounting board | substrate 7a can be hold | maintained and fixed, several LED mounting board | substrates 7a arrange | positioned radially can be integrated, and it is further strong and stable holding and fixing. It can be.

Embodiment 4 FIG.
FIG. 11 is a diagram illustrating an example of the shape of the LED mounting substrate constituting the light emitting module according to Embodiment 4. As shown in FIGS. 11A to 11D, there are four LED mounting boards 7b, 7c, 7d, and 7e, and slits 18b to 18e are formed along the central axis, respectively. The LED mounting boards 7b, 7c, 7d, and 7e intersect at each slit portion, and can be formed into a radial shape as a whole by assembling the slits so as to fit each other. In the light emitting module having the LED mounting substrates 7b, 7c, 7d, and 7e, the LED mounting substrates 7b, 7c, 7d, and 7e are arranged radially around the slit 18, and the LED 6 is emitted from the LED 6 to the front front. The light is mounted at a position where the light is blocked by a substrate disposed in front of the LED 6. According to such a configuration, the positions of the LED mounting substrates can be specified by the slits 18 without using a substrate support column or the like, and a strong and stable holding and fixing can be achieved.

The light emitting modules according to the first to third embodiments have eight LED mounting boards 7 (or LED mounting boards 7a), and the eight LED mounting boards 7 (or LED mounting boards 7a) are adjacent LED mounting boards. They are held and fixed radially so that they form a central angle of 45 degrees.
In addition, the light emitting module according to Embodiment 4 includes four LED mounting substrates 7b to 7e in total, and the LED mounting substrates that are radially intersected form a central angle of 45 degrees.

  However, among the emitted light emitted from the LED 6 mounted on the LED mounting substrate 7 (or 7a to 7e), the light emitted to the front front of the LED 6 is another LED mounting substrate arranged in front of the LED 6. The number of LED mounting substrates 7 is not limited to eight (or four) as long as the LED is not directly emitted to the outside of the light emitting module. In particular, as shown in FIG. 12, if the center angle between adjacent LED mounting boards is further reduced by increasing the number of LED mounting boards 7 or the like, the light emitted from the LEDs 6 is arranged in front of the LEDs 6. Further, the minimum value θ6 (lower limit) of the emission angle of the LED radiation directly emitted to the outside of the light emitting module without being blocked by another substrate or the like can be further increased. It is possible to further suppress the luminance level of the outgoing light that is directly emitted.

Embodiment 5. FIG.
In the light emitting modules according to the first to fourth embodiments, the LED 6 that is a light emitting element is mounted only on one side of the LED mounting substrate 7, and the substrate surface on which the LED 6 is mounted and the substrate surface on which the LED 6 is not mounted face each other. However, as shown in FIG. 13, the LED 6 may be mounted on both surfaces of the LED mounting substrate 7 so that the mounting surfaces on which the LEDs 6 are mounted face each other.

Embodiment 6 FIG.
FIG. 14 is a side view of the light emitting module 2a according to Embodiment 6 of the present invention as viewed from the top (bulb tip) side of the illumination lamp. In the light emitting module 2a of the present embodiment, as in the first embodiment, the plurality of LED mounting boards 7f are arranged radially such that adjacent LED mounting boards 7f form a central angle of less than 90 degrees (for example, 45 degrees). It is comprised so that it may hold | maintain. In the present embodiment, the LED mounting substrate 7f of the light emitting module 2a is provided with a standing portion 19 at the outer peripheral side end portion of the light emitting module 2a on the substrate surface opposite to the substrate surface on which the LED 6 is mounted. When this standing part 19 functions as a reflecting material that does not transmit light, the light emitted directly from the light emitting module 2a without being blocked by the standing part 19 out of the emitted light emitted from the LED 6 Since the minimum value θ7 of the emission angle is larger than the minimum value θ1 of the emission angle of light directly emitted to the outside of the light emitting module 2a when there is no standing portion 19 (without being blocked), the luminance The level is further suppressed and glare can be suppressed. FIG. 15 shows the relative luminance level (that is, the directivity characteristic of the emitted light) corresponding to the emission angle of the light directly emitted from the LED 6 to the outside of the light emitting module 2a, and the light with the emission angles θ1 and θ7. The difference of the brightness level compared in the case of is shown. Even when the standing portion 19 is made of a material having both light diffusibility and light transmittance such as ground glass, the light incident on the standing portion 19 from the LED 6 is transmitted while being diffused. The peak luminance level of light emitted from the module 2 is suppressed, and glare can be suppressed.

  According to the light emitting module 2a according to the present embodiment, among the emitted light emitted from the LEDs 6 mounted on the LED mounting substrate 7f, the light emitted in front of the LED is disposed in front of the LED 6 The LED 6 is not directly emitted from the light emitting module 2a by being blocked by 7f, and the standing portion 19 is provided at the outer peripheral side end of the LED mounting substrate 7f. The minimum value θ7 of the emission angle of the emitted light that is directly emitted to the outside can be increased, and the light emitting module 2a in which the glare is further suppressed can be obtained.

  As described above, in the second to sixth embodiments, the light emitting modules have been described. However, it is possible to configure the illumination lamp as described in the first embodiment using these light emitting modules. In other words, an illumination lamp including a light emitting module that emits light with suppressed peak luminance level and luminance difference can obtain high-quality irradiation light with reduced glare and increased uniformity. It is.

  In the above embodiment, a metal substrate such as an aluminum base substrate is suitable for the LED mounting substrate in order to conduct and diffuse the heat generated in the LED, but other highly conductive substrates such as a ceramic substrate. It may be. If the LED mounting substrate is an aluminum-based substrate, the reflectance is high to some extent and it also diffusely reflects, so it can be used as it is, but the reflectance can be increased by painting in white or pasting a white reflecting material. Can be improved. In particular, painting the facing surface of the LED mounting board facing the LED in white or pasting a white reflector is highly effective in improving the reflectance, and the placement surface on which the LEDs are placed is painted in white. Or by applying a white reflective material, the effect of further improving the reflectance can be obtained. As a result, the brightness and the light utilization efficiency are improved for the illumination lamp and the illumination device as a whole. Further, by increasing the diffuse reflectance using a matte type paint or reflector, the light emitted from the illumination lamp 100 can obtain high-quality irradiation light with suppressed glare and increased uniformity. Can do.

Embodiment 7 FIG.
In Embodiment 7, an aspect in which an illumination lamp including the light emitting module described in Embodiments 1 to 6 is used for a street lamp will be described. Conventionally, there is a street lamp using a high-intensity discharge lamp (HID lamp) such as a mercury lamp. In recent years, replacement of high-intensity discharge lamps used in these street lamps with illumination lamps using LEDs as light sources has been progressing.

FIG. 16 is a diagram illustrating an example of a street lamp.
In the present embodiment, the illumination lamp 100 is covered with a lamp cover 318.
The column 310 is erected on the ground with the lower end buried in the ground. The support post 310 is provided with a power supply device placement portion 311 for placing the power supply device at the lower portion and a socket placement portion 312 for placing the E-shaped socket 314 at the upper portion to electrically connect the power supply device and the E-shaped socket 314 2. The electric wire 313 in the column is accommodated inside. Each electric wire of the two in-post electric wires 313 is an electric wire having a cross-sectional area of 2.0 square mm or more. The two electric wires 313 in the column are electric wires having a dielectric strength that does not break down even when an alternating current of 1000 V or higher or 1500 V or higher is energized.

  The E-shaped socket 314 has the two functions of attaching the E-shaped base 4 of the illumination lamp 100 to hold and fix the illumination lamp 100 and supplying electric power for lighting the light source to the E-shaped base 4 of the illumination lamp 100. Have.

  One of the DC power supply device 315 and the AC stabilizer 316 is arranged in the power supply device arrangement unit 311. The DC power supply device 315 and the AC stabilizer 316 have two input terminals connected to a 100 VAC or 200 VAC commercial AC power line 317 that is buried in the ground and drawn from the lower end of the column 310.

  The DC power supply device 315 has a constant current DC circuit, and converts commercial AC power of 100 VAC or 200 VAC into DC power. And it has two output terminals which output the direct-current constant current of about 20V / 700mA (DC), 40V / 350mA (DC), and 80V / 200mA (DC) to two electric wires.

  The AC stabilizer 316 has an AC booster circuit, and converts commercial AC power of 100 VAC or 200 VAC to high frequency high voltage power of 1000 V or 1500 V. And it has two output terminals which output these high frequency high voltage electric power to two electric wires.

In the present embodiment, it is possible to replace an illumination lamp using an LED having a high energy consumption efficiency as a light source while making the best use of parts used in an existing street lamp.
In an illumination device using a high-intensity discharge lamp such as a mercury lamp installed on the ceiling of an indoor gymnasium, an AC stabilizer is installed near the ceiling. In contrast, the AC ballast for outdoor street lamps is usually placed at a position where the replacement work at the bottom of the column is easy to replace. Remove the cover and replace it with a DC power supply for lighting the LED, or add it. Can be easily done.

  The socket that holds and fixes the illumination lamp and is electrically connected is electrically connected by at least two electric wires. Conventionally, a high-frequency and high-voltage current for lighting a high-intensity discharge lamp such as a mercury lamp has flowed through the two wires, but a direct current constant for lighting the LED lamp is sent using these two wires. If there is no deterioration of parts and there is no problem from the viewpoint of safety and performance, the existing two electric wires will continue to be used, and only the illumination lamp will be used as the light source. It can be exchanged.

  As described above, the street lamp according to the present embodiment can be configured by exchanging the street lamp power supply device and the illumination lamp using a high-intensity discharge lamp such as an existing mercury lamp. In addition, by using the illumination lamp according to the present invention for a street lamp, it is possible to secure the illuminance as the whole lighting fixture while suppressing glare, and the temperature of the illumination lamp cover is set to a high-intensity discharge lamp such as a mercury lamp. Compared with the case where it was, it can suppress significantly.

  The aspect of the present invention is not limited to the above-described embodiments, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the above-described contents. That is, the scope of the present invention is defined not by the above-described embodiments but by the scope of claims, and the conceptual idea and spirit of the present invention derived from the contents defined in the scope of claims and equivalents thereof. Various additions, changes, and partial deletions are included without departing from the scope.

  100 illumination lamp, 1 outer bulb, 2 light emitting module, 3 support part, 4 base, 5 base substrate, 6 semiconductor light emitting element (LED), 7 LED mounting substrate, 8 screw, 9 substrate lead wire, 10 stem, 11 support Column, 12 Light emitting module support steel wire, 13 Cap lead wire, 14 Connector terminal portion, 15 Substrate holding connector, 16 Substrate support column, 17 Substrate holding portion, 18 Slit, 19 Standing portion, 20 Lead wire, 310 Post, 311 Power supply device arrangement section, 312 Socket arrangement section, 313 Electric wire in post, 314 E-type socket, 315 DC power supply apparatus, 316 AC ballast, 317 Commercial AC power supply line, 318 Lamp cover.

Claims (8)

Comprising a plurality of the substrate on which the light-emitting elements are arranged a light source, the substrate of the multiple, together with at least the light emitting element on either side along the central axis is disposed, the substrate to each other adjacent to each 90 degrees is held radially to form a central angle of less than, prior SL-emitting element, light emitted forward front of the front Symbol light emitting element arranged on one of the substrates in the substrate adjacent the light emitting A light emitting module, wherein the light emitting module is disposed at a position blocked by the other substrate disposed in front of the element.   The substrate disposed in front of the light emitting element is characterized in that a film of a material having a reflectance higher than that of the substrate is provided on an opposing surface facing the light emitting element. Item 2. The light emitting module according to Item 1. The light emitting module of claim 1 or claim 2 wherein the substrate is disposed in front of the light emitting element is characterized in that the facing surface facing the light emitting element is white. 2. The substrate on which the light emitting element is arranged is characterized in that a film of a material having a reflectance higher than that of the substrate is provided on an arrangement surface on which the light emitting element is arranged. The light emitting module according to claim 3. Before Kimoto plate, the light emitting module according to any one of claims 1 to 4, wherein the arrangement surface of the light emitting elements are arranged is white. In the substrate which is disposed in front of the light emitting element of claim 1 to claim 5, characterized in that a counter-radiation plate or diffusion transmission plate which is erected on the outer peripheral end surface opposite to the light emitting element The light emitting module of any one of Claims. An illumination lamp using the light emitting module according to any one of claims 1 to 6. An illumination lamp according to claim 7, having an E-shaped base,
And E-shaped socket for feeding the E-shaped the lighting lamp depending on installing an additional cap is fixed Rutotomoni from the E-shaped cap to the illumination lamp,
An electric wire in the column electrically connected to the E-shaped socket;
A DC power source for supplying DC power to the electric wire in the support;
And has a power supply arrangement portion for arranging the DC power supply at the bottom, it has a socket arrangement section for arranging the E-shaped socket at the top, a strut the strut in the wire is accommodated therein,
A street light characterized by having.