KR102171552B1 - Light generating assembly and lighting apparatus including the same - Google Patents

Abstract

The present invention is a light source module that emits light toward the front, is disposed to support the light source module, and has a protrusion on a second surface opposite to the first surface facing the light source module, and the base of the base. It is disposed so as to protrude from two sides, and has a support hole into which the protrusion is inserted, and provides an optical assembly having a plurality of radiating fins.

Description

Light generating assembly and lighting apparatus including the same

Embodiments of the present invention relate to an optical assembly and a lighting device including the same, and to an optical assembly having improved assembly properties and improved heat dissipation function, and a lighting device having the same.

Currently, research on lighting devices for energy saving and efficient light control is continuously being conducted.

Lighting devices exist in various forms depending on the type of light source, and light sources such as halogen lamps, fluorescent lamps, mercury lamps, high-pressure sodium lamps, and light emitting diodes (LEDs) are mainly used.

Such lighting devices are also used for home use, but due to their high energy efficiency, they are widely used for industrial use or street lights. In addition, as leisure activities in the outdoors increase in recent years, the utilization thereof is gradually increasing, for example in parks, golf courses, or other sports facilities.

On the other hand, in order for the lighting device to illuminate the light-transmitting space as brightly as possible, it is necessary to concentrate several light sources in one place. Therefore, the manufacturing of the lighting device may involve assembling several light sources and accessories, and in this process, the number of fastening parts such as screws and bolts increases innumerably.

In addition, since a large amount of heat is generated in the lighting device when several light sources are disposed adjacent to each other, it is also a very important problem to solve the heat generation problem.

The present invention has been made to solve various problems including the above problems, and an object thereof is to provide an optical assembly with improved assembly properties and improved heat dissipation function, and a lighting device having the same. However, these problems are exemplary, and the scope of the present invention is not limited thereby.

According to an aspect of the present invention, a light source module that emits light toward the front, is disposed to support the light source module, and has a protrusion on a second surface opposite to the first surface facing the light source module, and An optical assembly is provided that is disposed to protrude from the second surface of the base and has a support hole into which the protrusion is inserted, and includes a plurality of radiating fins.

The plurality of radiating fins may be disposed radially with respect to the center of the light source module.

It is coupled to the second surface of the base so as to correspond to the center of the light source module, and may further include a central portion for supporting one end of the plurality of radiating fins.

The central portion has a cylindrical shape and includes a plurality of extension grooves formed to be spaced apart from each other in a circumferential direction on a wall surface, and the one end of the plurality of radiating fins may be inserted into the plurality of extension grooves.

A cover plate extending across the center of the light source module and disposed to cover the center may be further provided.

The base may include a plurality of protrusions, and the protrusions may be disposed along an edge of the base.

A width of a portion of the protrusion protruding from the support hole may be greater than a width of the support hole.

The plurality of radiating fins are disposed to be spaced apart from each other on the base, have a protruding thin plate shape, and are bent from the fin part and the fin part to transfer heat generated from the light source module to the outside to It is seated on and may have a support portion in which the support hole is formed.

The fin portion may include a plurality of slits through which air flowing on the base passes.

The support portion has a fan shape, and a width may increase from the center of the base to the edge of the base.

The pin portion and the support portion may be disposed perpendicular to each other.

The light source module may include a light transmitting unit including a light source for generating light, a circuit board on which the light transmitting unit is mounted, and a waterproof packing disposed to surround an outer surface of the circuit board.

According to another aspect of the present invention, there is provided a lighting device having at least one light assembly as described above.

According to an embodiment of the present invention made as described above, the number of fastening parts can be reduced to improve assembly performance.

In addition, it is possible to improve the heat dissipation function of the lighting device.

In addition, it is possible to improve the convenience of installation outdoors or in a narrow space.

Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view schematically showing an optical assembly according to an embodiment of the present invention.
FIG. 2 is a perspective view schematically showing a rear surface of the optical assembly of FIG. 1.
3 is an exploded perspective view schematically showing a state in which the optical assembly of FIG. 1 is assembled.
4 is an exploded perspective view schematically illustrating a state in which some parts of the optical assembly of FIG. 1 are coupled to each other.
5A to 5C are cross-sectional views schematically illustrating processes in which portion A of FIG. 4 is combined.
6 is a schematic cross-sectional view of a part of an optical assembly according to another embodiment of the present invention.
7 is a perspective view schematically showing a state in which a lighting device according to an embodiment of the present invention is mounted.
8 is a perspective view schematically showing a state in which a lighting device according to another embodiment of the present invention is mounted.
9 is a perspective view schematically showing a state in which a lighting device according to another embodiment of the present invention is mounted.

Since the present invention can apply various transformations and have various embodiments, specific embodiments are illustrated in the drawings, and will be described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Terms such as first and second used in the present specification may be used to describe various components, but the components should not be limited by terms. The terms are only used for the purpose of distinguishing one component from another component.

In the present specification, when a part such as a layer, film, region, plate, etc. is said to be "on" or "on" another part, this includes not only the case where the other part is "directly over" but also the case where there is another part in the middle. do.

The x-axis, y-axis, and z-axis used in the present specification are not limited to three axes on a Cartesian coordinate system, and may be interpreted in a broad sense including them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings, and in the description with reference to the drawings, substantially identical or corresponding components are given the same reference numbers, and redundant descriptions thereof will be omitted. do. In the drawings, the thicknesses are enlarged to clearly express various layers and regions. In addition, in the drawings, the thicknesses of some layers and regions are exaggerated for convenience of description.

1 is a perspective view schematically showing an optical assembly according to an embodiment of the present invention, FIG. 2 is a perspective view schematically showing a rear surface of the optical assembly of FIG. 1, and FIG. 3 is It is an exploded perspective view schematically showing the assembled state. Also, FIG. 4 is an exploded perspective view schematically illustrating a state in which some components of the optical assembly of FIG. 1 are coupled to each other.

1 to 4, the optical assembly LA1 includes a light source module LM1, a base BP1, and a plurality of radiating fins HP1.

The light source module LM1 is disposed on the front surface of the optical assembly LA1. The light source module LM1 has a light-transmitting portion LP1 equipped with a light source for generating light, and emits light generated by the light source in the front (-Y direction). At this time, the types of light sources may be various, for example, the light source may be in the form of a light emitting diode (LED) having high luminous efficiency.

In an embodiment, the light source module LM1 may be formed in a form in which at least one light emitting diode is mounted on the circuit board PM1. The circuit board PM1 may function to control the blinking operation of the light emitting diode and prevent occurrence of an overcurrent.

In this case, the waterproof packing WP1 may be disposed to surround the outer surface of the circuit board PM1. The waterproof packing WP1 may be formed of a flexible and dense material such as rubber, and may be disposed to surround the outer edge of the circuit board PM1. In this way, since the waterproof packing WP1 is provided on the light source module LM1, it is possible to prevent moisture from flowing into the circuit board PM1 from rain or snow even when the lighting device is used outdoors.

In addition, a light-transmitting cover (not shown) may be disposed on the front surface of the light source module LM1 so as to overlap with the light source module LM1. The light-transmitting cover part has a material that can easily transmit light emitted from the light-transmitting part LP1, and may be formed of, for example, a light-transmitting resin-based material or a glass material. Accordingly, the light-transmitting cover part protects the light source module LM1 from external impacts and scratches applied during use.

The light source module LM1 as described above is supported by the base BP1. The base BP1 has a first surface S1 and a second surface S2 that is opposite to the first surface S1, wherein the first surface S1 is a surface adjacent to the rear surface of the light source module LM1 Means. The light source module LM1 is coupled to the first surface S1 of the base BP1. In this case, a separate fastening member may be used to couple the light source module LM1 and the base BP1.

Meanwhile, in FIG. 1 and the like, the base BP1 and the light source module LM1 are shown to have a disk shape, but are not limited thereto. That is, the base BP1 and the light source module LM1 may be formed in, for example, a polygonal plate shape, and both may be formed to have different shapes.

The base BP1 includes a material having high strength and high rigidity enough to sufficiently support the light source module LM1 and a plurality of heat dissipation fins HP1 to be described later, and may be formed of, for example, a metal or a dense polymer.

Meanwhile, a protrusion PR1 is formed on the second surface S2 of the base BP1. The protrusion PR1 serves as a fastening member for coupling the plurality of radiating fins HP1 to the base BP1. Therefore, in order to strengthen the assembly fastening force, it is preferable to form the number of protrusions PR1 to correspond to the number of the plurality of radiating fins HP1. However, this is only an example, and the protrusion PR1 may be omitted for some of the plurality of radiating fins HP1.

A plurality of protrusions PR1 may be disposed along the edge of the base BP1. In this case, the protrusion PR1 may be disposed at a position corresponding to each of the plurality of radiating fins HP1. A more specific shape of the protrusion PR1 will be described later with reference to FIGS. 5A to 5C and 6.

A plurality of radiating fins HP1 are disposed on the second surface S2 of the base BP1 to protrude upward. The plurality of radiating fins HP1 may be formed in the form of a thin plate protruding from the top of the base BP1.

In an embodiment, the plurality of radiating fins HP1 may be radially disposed with respect to the center of the light source module LM1. Accordingly, by discharging heat generated from the light source module LM1 in various directions, material deformation due to overheating and disconnection due to overload can be prevented. Hereinafter, for convenience of description, an embodiment in which a plurality of radiating fins HP1 are radially disposed on the base BP1 will be described in detail.

Meanwhile, referring to the enlarged view on the left side of FIG. 3, the heat dissipation fin HP1 includes a fin portion FP1 and a support portion SP1.

The fin part FP1 is a part that substantially performs a heat dissipation function by transferring heat generated from the light source module LM1 to the outside. Accordingly, the pin portion FP1 may be formed to protrude outward from the second surface S2 of the base BP1. In addition, the fin portion FP1 may be formed in a thin plate shape to maximize a heat transfer area, and may be formed to include a material having high thermal conductivity, such as a metal.

A plurality of slits SL1 may be provided in the pin part FP1. The plurality of slits SL1 are through holes penetrating the fin part FP1 in the thickness direction, and thereby, air flowing on the base BP1 passes through to help heat dissipation in the lighting device. It goes without saying that the number and arrangement of the slits SL1 may be modified in various forms according to the shape and number of the heat dissipation fins HP1.

The support part SP1 is connected to the pin part FP1. The support part SP1 is a part that couples the pin part FP1 to the base BP1, and in this case, the support part SP1 is bent from the pin part FP1 to be seated on the second surface S2 of the base BP1. In an embodiment, the pin portion FP1 may be bent in a direction substantially perpendicular to the support portion SP1.

Specifically, the support part SP1 is seated in the spaced space between the adjacent fin parts FP1, and the support part SP1 may be formed to have an approximately fan shape to correspond to the shape of the spaced space. That is, the width may increase from the center of the base BP1 to the edge of the base BP1.

A support hole SH1 is formed in the support part SP1. The support hole SH1 is a hole into which the protrusion PR1 formed in the base BP1 is inserted, and serves as a fastening member together with the protrusion PR1. In this way, by using the protrusion PR1 and the support hole SH1, not only can the plurality of heat dissipation fins HP1 be firmly coupled to the base BP, but also manufacturing cost and assembly process due to the omission of a significant number of fastening parts. You can reduce the number.

In FIG. 2 and the like, it is shown that one support hole SH1 is formed in the support part SP1, but is not limited thereto, and the number of support holes SH1 may be increased to two or more to improve fastening force. In this case, as the number of support holes SH1 increases, the number of protrusions PR1 formed in the base BP1 also increases.

As shown in FIG. 4, in order to support the plurality of radiating fins HP1, the central part CT1 may be coupled to the second surface S2 of the base BP1. Specifically, the central portion CT1 is positioned to correspond to the center of the light source module LM1 and may support one end of the plurality of radiating fins HP1. At this time, the central portion CT1 may be coupled to the base BP1 using a fastening member (not shown) so that the central portion CT1 may be fixed to the base BP1.

In one embodiment, the central portion CT1 has a cylindrical shape, and a plurality of extension grooves GR1 may be formed on a wall surface of the central portion CT1 in the circumferential direction. The plurality of extension grooves GR1 may be formed to extend in the longitudinal direction (+Y direction) of the center CT1. One end of the plurality of pin portions FP1 may be inserted into the plurality of extension grooves GR1, and the lengths of the plurality of extension grooves GR1 may be variously modified according to the size of the end.

As the plurality of pin portions FP1 are disposed to be spaced apart from each other, the plurality of extension grooves GR1 may also be formed to be spaced apart from each other on the wall surface of the center CT1. Accordingly, the cross section of the center CT1 has an approximately cogwheel shape, and a spaced apart between the plurality of extension grooves GR1 may vary according to the number of the plurality of radiating fins HP1.

A cover plate CN1 may be disposed on the center CT1. The cover plate CN1 is a member for preventing the plurality of radiating fins HP1 from being separated from the base BP1. Specifically, the cover plate CN1 extends to cross the center of the light source module LM1 and may be disposed to cover the center CT1. In this case, the cover plate CN1 may be coupled to the upper portion of the center CT1 using a fastening member (not shown).

2 and the like, the cover plate CN1 is shown to have two extensions extending to both sides with the center CT1 as the center, but the number of the extensions can be changed as much as necessary.

5A to 5C are cross-sectional views schematically illustrating processes in which portion A of FIG. 4 is combined, and FIG. 6 is a cross-sectional view schematically illustrating a portion of an optical assembly according to another embodiment of the present invention.

First, as shown in FIG. 5A, the protrusion PR1 formed in the base BP1 is inserted into the support hole SH1 formed in the support part SP1 of the radiating fin. Specifically, the protrusion PR1 is inserted into the support hole SH1 so that the support part SP1 is disposed on the second surface S2 of the base BP1. Here, the second surface S2 means a surface opposite to the first surface S1 facing the light source module as described above.

In this case, when the value of the width of the support hole SH1 is d1, the value of the width of the protrusion PR1 may also be approximately d1. That is, in this step, the width of the protrusion PR1 may be substantially constant along the protrusion direction (+Y direction) of the protrusion PR1. Strictly, of course, the width of the support hole SH1 will be slightly larger than the width of the protrusion PR1 so that the protrusion PR1 can be inserted into the support hole SH1.

Next, a step of applying pressure to the upper end protruding from the support part SP1 of the protrusion PR1 may be performed using a tool or a mechanical device. That is, as shown in FIG. 5B, pressure may be applied to the upper end of the protrusion PR1 by using the pressure member P.

For example, the pressure member P may be a hammer, and in this case, it may sequentially strike the plurality of protrusions PR1. As an alternative embodiment, pressure may be simultaneously applied to the plurality of protrusions PR1 by using a press device having a plurality of pressure members P.

Accordingly, as shown in FIG. 5C, the width of the upper end of the protrusion PR1 may be increased. For example, if the value of the width of the support hole SH1 is d1 and the value of the width of the upper end of the protrusion PR1 is d2, d2 is greater than d1. Accordingly, in the protrusion PR1, the width of the upper end protruding from the support hole SH1 and the width of the lower end inserted into the support hole HS1 are different, making it difficult to separate the protrusion PR1 from the support hole SH1. do. As a result, the fastening force between the base BP1 and the support SP1 may be improved.

As an alternative embodiment, the upper surface of the protrusion PR1, that is, the upper surface exposed through the support hole SH1 may have a flat surface. In addition, as another example, it may have a surface of various shapes according to the type of the pressure member P.

As an alternative embodiment, the process of applying pressure to the protrusion PR1 may not be performed. That is, the protrusion PR1 may be maintained in the state shown in FIG. 5A. In this case, when the protrusion PR1 is inserted into the support hole SH1, the gap or space between the protrusion PR1 and the support hole SH1 may be relatively small. For example, the protrusion PR1 is the support hole SH1. It can also be inserted so as to be in close contact with.

In addition, as another embodiment, as shown in FIG. 6, the upper end of the protrusion PR1 ′ may be formed to have a substantially round rivet shape. The protrusion PR1 ′ of FIG. 6 may be formed using various methods, may include a process of applying pressure, and may also include an additional molding process. In this case, as in the embodiment shown in FIG. 5C, when the value of the width of the support hole SH1 is d1 and the value of the width of the upper end of the protrusion PR1' is d2', d2' is greater than d1. I can.

In addition, as an optional embodiment, the process of applying pressure to the protrusion PR1 ′ is omitted, so that the upper end shape of the protrusion PR1 ′ is substantially the same as the width of the support hole SH1. You can also keep it.

Although not shown, in addition to the structure of the protrusions PR1 and PR1' shown in Figs. Applicable to example.

7 is a perspective view schematically showing a state in which a lighting device according to an embodiment of the present invention is mounted, and FIG. 8 is a perspective view schematically illustrating a state in which a lighting device according to another embodiment of the present invention is mounted, 9 is a perspective view schematically showing a state in which a lighting device according to another embodiment of the present invention is mounted.

A lighting device according to embodiments of the present invention includes at least one light assembly and a housing supporting the at least one light assembly. In this case, the number of optical assemblies provided in the lighting device may be variously modified, and the arrangement of the optical assemblies and the shape of the housing may vary according to the number of optical assemblies. Hereinafter, modified embodiments according to the number of optical assemblies will be described in detail with reference to FIGS. 7 to 9.

First, referring to FIG. 7, a lighting device 100 according to an embodiment of the present invention includes two optical assemblies LA1 and LA2, that is, a first optical assembly LA1 and a second optical assembly LA2. can do.

In addition, the lighting device 100 may include a housing 110 that supports the two light assemblies LA1 and LA2. There may be various ways of supporting the optical assemblies LA1 and LA2 on the housing 110. As an embodiment, as shown in FIG. 7, the first optical assembly LA1 and the second optical assembly LA2 ) A method of connecting between the housings 110 may be used.

In this embodiment, the housing 110 only needs to support the two optical assemblies LA1 and LA2, so that the size of the housing 110 can be relatively minimized. For example, the housing 110 may be formed in a strip shape capable of connecting the two optical assemblies LA1 and LA2 to each other.

In an embodiment, a coupling part 120 may be disposed on one side of each of the two optical assemblies LA1 and LA2. Here, the term "one side of the optical assembly" refers to the opposite side of the side connected by the housing 110 of the optical assemblies LA1 and LA2. The coupling part 120 may be coupled to a part of the housing 110 or may be formed integrally with the housing 110, and in this case, the housing 110 is located on the one side of each of the optical assemblies LA1 and LA2. It may include a portion to be disposed.

The lighting device 100 may further include a mounting part 150, and the housing 110 may be stably mounted on the ground by using the mounting part 150.

In one embodiment, the mounting portion 150 may be hinged to each of the coupling portions 120 to extend toward the ground. At this time, the mounting portion 150 may further include a portion that connects the extended portions as described above but is seated on the ground. As a result, the mounting part 150 supports the lighting device 100 on the ground, while variously adjusting the mounting angles of the optical assemblies LA1 and LA2 with respect to the ground.

Next, referring to FIG. 8, a lighting device 200 according to another embodiment of the present invention includes three optical assemblies LA1, LA2, and LA3, that is, a first optical assembly LA1 and a second optical assembly LA2. ) And a third optical assembly LA3.

In addition, the lighting device 200 may include a housing 210 supporting the three optical assemblies LA1, LA2, and LA3. There may be various ways of supporting the optical assemblies LA1, LA2, and LA3 on the housing 210. In one embodiment, a first light is provided to each of the plurality of through portions (not shown) formed in the housing 210. A method in which the assembly LA1, the second optical assembly LA2, and the third optical assembly LA3 are inserted may be used. In this case, the optical assemblies LA1, LA2, and LA3 are disposed to be spaced apart from each other, and thus, the plurality of through portions may be formed to be spaced apart from each other in the housing 210.

The lighting device 200 of this embodiment may further include a mounting part 250, and the mounting part 250 is a coupling part 220 disposed at both ends of the housing 210 similar to the embodiment shown in FIG. 7. ) Can be combined.

In one embodiment, the mounting portion 250 may be hinged to each of the coupling portions 220 to extend toward the ground. At this time, the mounting portion 250 may further include a portion to be mounted on the ground while connecting the extended portions as described above. As a result, the mounting unit 250 supports the lighting device 200 on the ground, while variously adjusting the mounting angles of the optical assemblies LA1, LA2, and LA3 with respect to the ground.

Next, referring to FIG. 9, the lighting device 300 according to another embodiment of the present invention includes four optical assemblies LA1, LA2, LA3, and LA4, that is, a first optical assembly LA1 and a second light. An assembly LA2, a third optical assembly LA3, and a fourth optical assembly LA4 may be provided.

In addition, the lighting device 300 may include a housing 310 supporting the four optical assemblies LA1, LA2, LA3, and LA4. There may be various ways of supporting the optical assemblies LA1, LA2, LA3, and LA4 on the housing 310. In one embodiment, a plurality of through portions (not shown) formed in the housing 310 are provided. A method in which the first optical assembly LA1, the second optical assembly LA2, the third optical assembly LA3, and the fourth optical assembly LA4 are inserted may be used. This is in the same or similar manner as the embodiment shown in FIG. 8, the optical assemblies LA1, LA2, LA3, and LA4 of the present embodiment are also arranged to be spaced apart from each other, so the plurality of through portions It can be formed to be spaced apart.

However, since the number of optical assemblies is greater than that of the embodiment illustrated in FIG. 8, a central penetrating portion 310CH penetrating the central portion of the housing 310 may be further provided to improve heat dissipation characteristics. As a result, it is possible to improve the heat dissipation characteristics of the lighting device 300 by smoothing the air flow to the front or the rear of the lighting device 300, while reducing the effect of shaking caused by strong winds during outdoor installation.

The lighting device 300 of the present embodiment may further include a mounting portion 350, and the mounting portion 350 is a coupling portion disposed at both ends of the housing 310 in the same or similar to the embodiment shown in FIG. Can be coupled to (320).

In one embodiment, the mounting portion 350 may be hinged to each of the coupling portions 320 to extend toward the ground. At this time, the mounting portion 350 may further include a portion that connects the extended portions as described above but is seated on the ground. As a result, the mounting unit 350 supports the lighting device 300 on the ground, while variously adjusting the mounting angles of the optical assemblies LA1, LA2, LA3, and LA4 with respect to the ground.

Meanwhile, in FIGS. 7 to 9, it is illustrated that a plurality of light assemblies are provided in the lighting device, but the present invention is not limited thereto. That is, the lighting device may have any number of light assemblies.

As described above, according to an embodiment of the present invention, it is possible to improve assembly performance by reducing the number of fastening parts of the lighting device. In addition, it is possible to improve the heat dissipation function of the lighting device, and it is possible to improve the convenience of installation outdoors or in a narrow space.

Although the present invention has been described with reference to an embodiment shown in the drawings, this is only exemplary, and those of ordinary skill in the art will understand that various modifications and variations of the embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

LA1, LA2, LA3, LA4: Optical assembly
LM1: light source module
BP1: Base
PR1, PR1': protrusion
HP1: heat dissipation fin
FP1: pin part
SP1: support
SH1: support hole
CT1; center
CN1: cover plate
100, 200, 300: lighting device
110, 210, 310: housing
120, 220, 320: coupling portion
150, 250, 350: mounting portion

Claims (10)

Including a light source module, a base, a plurality of radiating fins, a center and a cover plate,
The light source module is disposed to emit light toward the front,
The base is disposed to support the light source module, and has a protrusion on a second surface opposite to the first surface facing the light source module,
The plurality of radiating fins protrude from the second surface of the base, are radially disposed with respect to the center of the light source module, and have a support hole into which the protrusion is inserted, and the protrusion of the base is at least spaced apart from the light source module. Protruding in a direction away from the light source module as possible, including a region protruding from the base and having a first width, a region extending from the region having the first width and having a second width greater than the first width, the Among the regions of the support portion of the radiating fin, the region adjacent to the support hole is arranged to limit motion between the base and the region having the second width of the protrusion, and the region having the second width of the protrusion allows the radiating fin The support of the is fixed,
The central portion is coupled to the second surface of the base so as to correspond to the center of the light source module, and is formed to support one end of the plurality of radiating fins,
The cover plate has a shape elongated so as to cross at least the center of the light source module, is formed in a center region formed to cover the center and is coupled to the center, and a plurality of areas on side surfaces of the center region, and from the center region An optical assembly comprising a plurality of extensions extending in a direction away from each other and extending in a direction parallel to a length direction of at least one of the plurality of radiating fins. The method of claim 1,
The central portion has a cylindrical shape, and includes a plurality of extension grooves formed to be spaced apart from each other in a circumferential direction on the wall surface,
The optical assembly, wherein the one end of the plurality of radiating fins is inserted into the plurality of extension grooves. The method of claim 1,
The base has a plurality of the protrusions,
The protrusion is disposed along the edge of the base. The method of claim 1,
The optical assembly, wherein a width of a portion of the protrusion protruding from the support hole is greater than a width of the support hole. The method of claim 1,
The plurality of radiating fins,
A pin portion disposed to be spaced apart from each other on the base, having a protruding plate shape, and transferring heat generated from the light source module to the outside; And
And a support part bent from the pin part and seated on the second surface of the base, and having the support hole formed therein. The method of claim 5,
The optical assembly, wherein the pin portion has a plurality of slits for passing air flowing on the base. The method of claim 5,
The support has a fan shape,
The optical assembly, wherein the width increases from the center of the base to the edge of the base. The method of claim 5,
The optical assembly, wherein the pin portion and the support portion are disposed perpendicular to each other. The method of claim 1,
The light source module,
A light transmitting unit including a light source for generating light;
A circuit board on which the light transmitting part is mounted; And
And a waterproof packing disposed to surround the outer surface of the circuit board. A lighting device comprising at least one optical assembly according to any one of claims 1 to 9.

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