KR101352053B1 - Light reflecting device package and illumination device using the same - Google Patents

Abstract

A light reflecting structure is disclosed, wherein the light reflecting structure includes: a reflector having a reflecting surface formed therein; A plurality of light source mounting parts disposed along a lower circumference of the reflecting part; Light sources mounted on the plurality of light source mounting units, respectively; And a mounting part in which the reflecting part and the plurality of light source mounting parts are mounted, wherein the plurality of light source mounting parts are provided such that the light sources mounted on the respective light sources face the reflective surface.

Description

LIGHT REFLECTING DEVICE PACKAGE AND ILLUMINATION DEVICE USING THE SAME}

The present application relates to a light reflecting structure and an illumination device including the same.

In general, LED (Light Emitting Diode) light source is a point light source, the light diffusion range is narrow. Therefore, a large number of LEDs had to be arranged in order to emit light in a wide range in three dimensions through conventional bulb type LED lighting.

However, in this case, although a sufficient amount of light may be provided, the heat generation becomes severe due to the large number of LED arrays, manufacturing costs increase, and power consumption increases. In addition, there is a problem that LED spots are generated due to direct irradiation of the LED light source, causing glare. Accordingly, there has been a demand for development of lighting device technology having a new concept and structure.

The present application is to solve the above-mentioned problems of the prior art, the light reflection structure that can uniformly emit light in three dimensions with only a small number of light sources, reduce power consumption and heat generation, and prevent the occurrence of LED spot and An object of the present invention is to provide a lighting device including the same.

As a technical means for achieving the above technical problem, the light reflecting structure according to the first aspect of the present application, the reflecting portion is formed with a reflective surface around; A plurality of light source mounting parts disposed along a lower circumference of the reflecting part; Light sources mounted on the plurality of light source mounting units, respectively; And a mounting part in which the reflecting part and the plurality of light source mounting parts are mounted, wherein the plurality of light source mounting parts may be provided such that the light sources mounted on each of the light source mounting parts face the reflective surface.

On the other hand, the lighting apparatus according to the second aspect of the present application, the light reflecting structure according to the first aspect of the present application; A heat dissipation unit disposed under the light reflecting structure; A printed circuit board electrically connected to the light source; And it may include a power supply for supplying power to the light source.

According to the above-described problem solving means of the present application, the light reflecting structure and the lighting apparatus including the same by providing a reflecting portion formed with a reflective surface around the light source mounting portion disposed along the lower circumference of the reflecting portion so that the light source faces the reflecting surface, Even through a small number of light sources, it is possible to form an illumination having a predetermined amount of light emitted in a wide range in three dimensions, thereby greatly reducing heat generation from the light source, lowering manufacturing costs, and reducing power consumption. In addition, since the spot is not generated due to direct light irradiation as an indirect lighting method, glare can be prevented, and uniform illumination of high light efficiency can be realized.

1 is a schematic front view of a lighting apparatus including a light reflecting structure according to an embodiment of the present disclosure.
FIG. 2 is a conceptual diagram illustrating the light reflection structure of FIG. 1.
3 is a plan view of the ring structure of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when a part is referred to as being "connected" to another part, it is not limited to a case where it is "directly connected" but also includes the case where it is "electrically connected" do.

Throughout this specification, when a member is " on " another member, it includes not only when the member is in contact with the other member, but also when there is another member between the two members.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. The terms "about "," substantially ", etc. used to the extent that they are used throughout the specification are intended to be taken to mean the approximation of the manufacturing and material tolerances inherent in the stated sense, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure. The word " step (or step) "or" step "used to the extent that it is used throughout the specification does not mean" step for.

Throughout this specification, the term " combination thereof " included in the expression of the machine form means one or more combinations or combinations selected from the group consisting of the constituents described in the expression of the machine form, And the like.

For reference, the terms related to direction or position (upper side, lower side, etc.) in the description of the embodiments of the present application are set based on the arrangement state of each structure shown in the drawings. For example, as seen in FIG. 1, the upper side may be an upper side, the lower side may be a lower side, and the direction on a plane formed over front, rear, left, and right may be a horizontal direction. However, in various practical applications of the light reflecting structure and the lighting apparatus including the same according to an embodiment of the present application, the bottom surface may be disposed in various directions such as to face upward.

First, a light reflecting structure (hereinafter referred to as a 'main light reflecting structure') according to an embodiment of the present application will be described.

1 is a plan view of a lighting apparatus including a light reflecting structure according to an embodiment of the present application, Figure 2 is a conceptual diagram illustrating the light reflecting structure of FIG.

The light reflecting structure 10 includes a reflector 100.

Referring to FIG. 1, a reflective surface 111 is formed around the reflective part 100.

Referring to FIG. 2, the reflector 100 may include a plurality of reflecting surface arrangement units 110 disposed adjacent to each other along a circumference. That is, referring to FIGS. 1 and 2, the reflective surface 111 is included in the reflective surface arrangement unit 110 provided around the reflective portion 100, whereby the reflective surface 111 is formed around the reflective portion 100. Can be formed.

Meanwhile, as shown in FIG. 2, the reflective surface 111 is coated on the reflective surface arrangement 110, such that the reflective surface 111 may be included in the reflective surface arrangement 110. However, the method in which the reflective surface 111 is included in the reflective surface arranging unit 110 is not limited to the coating, and the fine pattern structure 113 is formed on the reflective surface arranging unit 110 by the MEMS process technology. The reflective surface 111 may be included in the reflective surface arrangement 110 in various ways, such as the slope arrangement 110 and the reflective surface 111 are integrally provided.

Referring to FIG. 2, the reflective surface 111 may have a fine pattern structure 113 that emits light emitted from the light source 210 in a predetermined direction. Here, the predetermined direction may refer to an upper direction and an outer direction of the circumference of the reflector 100.

In addition, the fine pattern structure 113 may be formed through a MEMS process technology. Through this technology, since light may be incident in any direction according to a fine pattern, light may be reflected in a specific direction, thereby realizing excellent lighting in terms of light efficiency without a functional film, and lowering manufacturing costs. In addition, the specific direction mentioned herein may be determined by the shape of each of the fine patterns and the pitch between the fine patterns in the fine pattern structure 113 shown in FIG. 2. In addition, the shape of the fine pattern structure 113 may be provided in various shapes that can increase the reflection efficiency toward the diffusion layer 700.

The reflector 100 may have a pillar shape. As shown in FIG. 1, the main bus line with respect to the pillar may have an obliquely inclined angle b, and the cross-sectional area thereof becomes narrower toward the top. For example, the reflector 100 may be provided in the form of a hollow pyramid or truncated cone. Alternatively, the reflector 100 may be provided in a horn shape (not shown in the figure) with a sharp top. The angle b of the bus bar in the pillar shape of the reflector 100 may be provided at various angles to increase the reflection efficiency toward the diffusion layer 700.

The shape of the reflector 100, that is, the size, shape, inclination, and the like of the circumferential surface may be organic along with the angle of the light source 210 facing the reflective surface 111 and the shape and pitch of the fine pattern structure 113. By being considered and determined as, the three-dimensional divergence range of light, uniformity of light divergence, light divergence efficiency, and the like can be adjusted and determined.

By the way, as mentioned above, the conventional light bulb type LED lighting must arrange a large number of light sources in order to emit light in three dimensions extensively. However, in this case, although a sufficient amount of light can be provided, there is a disadvantage in that heat generation becomes severe, manufacturing costs increase, and power consumption increases. In addition, there was a problem that the spot is caused by the direct irradiation of the light source, causing glare

On the other hand, by providing a reflector 100 having a three-dimensional shape as described above, the light emitted from the light source 210 is totally reflected at the reflective surface 111 spaced apart from the light source 210 and transmitted through the diffusion layer 700. By using this, a small number of light sources can be used to form illumination that emits widely in three dimensions. In addition, since spots are not generated due to direct light irradiation, glare may be prevented, and uniform illumination of high light efficiency may be realized while reducing eye fatigue.

In addition, the light reflecting structure 10 includes a light source mounting portion 200.

The light source mounting part 200 is disposed in plural along the lower circumference of the reflecting part 100. The plurality of light source mounting units 200 are provided such that the light sources 210 mounted on the light sources 210 face the reflective surfaces 111.

Referring to FIG. 1, each of the plurality of light source mounting units 200 may be disposed around the lower side of the reflecting unit 100 so as to correspond to each reflecting surface 111 formed around the reflecting unit 100. In exemplary embodiments, the light source mounting portion 200 may have a rectangular cross section.

In addition, referring to FIG. 1, the light source mounting part 200 may look at the reflecting part 100 while having a specific angle a. Herein, the specific angle a may be determined at various angles to increase reflection efficiency toward the diffusion layer 700.

That is, as described above, in order to adjust the light divergence range of the light reflection structure 10 and to increase the light reflection efficiency and the light divergence uniformity, the pitch of the fine pattern in the fine pattern structure 113 of the reflective surface 111 and The shape of the fine pattern can be adjusted, respectively, the pillar shape of the reflector 100 and the angle (b) of the bus bar with respect to the pillar of the reflector 100 can be adjusted, respectively, to have a look at the reflector 100 A specific angle (a) of the light source mounting portion 200 can be adjusted. By organically controlling the micropattern structure 113 of the reflective surface 111, the shape of the reflective portion 100, and the mounting angle of the light source 210 of the light source mounting portion 200 together, the present light reflective structure 10 is It may be implemented as a light reflecting structure 10 having other light divergence characteristics according to the installation conditions and the like.

In addition, the light reflecting structure 10 includes a light source 210.

The light source 210 is mounted to the light source mounting part 200.

For example, referring to FIG. 1, one or more light sources 210 may be disposed in the center of the light source mounting part 200. The light source 210 may use an LED.

In addition, the light reflecting structure 10 includes a mounting unit 300.

The mounting part 300 is equipped with a reflecting part 100 and a plurality of light source mounting parts 200.

1 and 2, the mounting unit 300 may be located under the light source mounting unit 200.

Meanwhile, hereinafter, the lighting apparatus 1000 (hereinafter, referred to as “the present lighting apparatus”) according to the exemplary embodiment of the present application using the light reflecting structure 10 according to the exemplary embodiment of the present application will be described. However, the same reference numerals are used for the same or similar components as those described in the light reflecting structure 10 according to an embodiment of the present invention, and the overlapping description will be briefly or omitted.

3 is a plan view of the ring structure of FIG. 1 viewed from above.

The present lighting device 1000 includes a light reflecting structure 10 according to an embodiment of the present invention prior to salping.

In addition, the lighting device 1000 includes a heat radiating unit 400.

The heat radiating unit 400 is disposed below the light reflecting structure 10.

Referring to FIG. 1, the heat dissipation unit 400 may include a plurality of ring structures 410 spaced apart from each other. In addition, the heat dissipation unit 400 may further include a spacing member 430 that separates the plurality of ring structures 410 from each other. In addition, referring to FIGS. 1 and 3, the ring structure 410 may have a donut shape. On the other hand, the heat dissipation unit 400 is not limited to such a shape, but may be provided in a variety of forms, such as a square, it may be provided in various forms to increase the heat dissipation effect.

Referring to FIG. 1, the heat dissipation unit 400 serves to space the printed circuit board 500 and the power supply unit 600 from the light source 210 to facilitate heat dissipation. In addition, since the ring structures 410 of the heat dissipation unit 400 are also spaced apart from each other, and each ring structure 410 also has a central portion of the through hole, the ring structures 410 are formed in the light source 210 by free convection between the spaces. The heat is easily radiated to the outside can further enhance the heat dissipation effect.

Particularly, according to the light reflecting structure 10, the light emitting efficiency can be ensured by a predetermined number or more even with only a few light sources 210, and the heat generated by the few light sources 210 is also the heat dissipation unit 400 as described above. The heat dissipation structure of) allows for easy heat dissipation.

The ring structure 410 may be made of a metal material having excellent thermal conductivity such as aluminum or an iron-based alloy. The heat dissipation effect can be further improved by using a metal material which can easily absorb and release heat. On the other hand, the material of the ring structure 410 is not limited to a metal material, it may be made of a variety of materials that can increase the heat dissipation effect.

Since the heat dissipation unit 400 is provided, it is possible to prevent the life of the light source, which is a problem of the conventional lighting device, and the reduction of the light energy of the LED. In addition, in the conventional lighting device, the heat sink is large due to the heat generation of the light source, thereby preventing an increase in weight.

In addition, the present lighting apparatus 1000 includes a printed circuit board 500.

The printed circuit board 500 is electrically connected to the light source 210.

Referring to FIG. 1, the printed circuit board 500 may be disposed under the heat dissipation unit 400.

The printed circuit board 500 may be made of a metal material having excellent thermal conductivity. However, the material of the printed circuit board 500 is not limited to a metal material, but may be made of various materials that can increase the heat dissipation effect.

In addition, the lighting device 1000 includes a power supply unit 600.

The power supply unit 600 supplies power to the light source 210.

For example, although not shown in the drawing, the power supply unit 600 may include a switched-mode power supply (SMPS) and a base electrode unit 610 for applying external power to the SMPS. For example, the base electrode unit 610 may apply an external 110V or 220V power source to the SMPS, and the SMPS may convert the applied power source into a constant voltage and an electrodeless power source and supply the same to the light source 210. Since the structure and function of the base electrode part 610 and the SMPS itself are obvious to those skilled in the art, detailed description thereof will be omitted.

In addition, an injection molding may be provided to surround the SMPS, and the injection molding functions to protect the SMPS from external impact or moisture. The base electrode part 610 may be mounted on the injection molded product. In this case, the base electrode part 610 may use a socket of a screw type. However, the socket is not limited to a socket-type socket, but a socket-type socket can be used in various forms.

In addition, the lighting device 1000 may further include a diffusion layer 700 surrounding the circumference and the upper side of the light reflection structure 10 so that the light that is reflected and reached through the reflection surface 101 is diffused.

It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: light reflecting structure 100: reflecting unit
110: reflection surface arrangement 111: reflection surface
113: fine pattern structure 200: light source mounting portion
210: light source 300: mounting portion
400: heat dissipation unit 410: ring structure
430: space member 600: power supply
610: base electrode portion 700: diffusion layer
1000: lighting device a: specific angle
b: angle of busbar to column

Claims (11)

In the light reflecting structure,
A reflector formed with a reflective surface around the perimeter;
A plurality of light source mounting parts disposed along a lower circumference of the reflecting part;
Light sources mounted on the plurality of light source mounting units, respectively; And
Including the mounting portion is mounted to the reflector and the plurality of light source mounting portion,
The plurality of light source mounting portions are provided so that the light sources mounted on each of them face the reflective surface,
The reflecting surface has a light reflecting structure having a fine pattern structure for emitting light emitted from the light source in a predetermined direction. delete The method of claim 1,
The predetermined direction is a light reflecting structure of the upper direction and the outer direction of the reflecting portion. The method of claim 1,
The fine pattern structure is a light reflecting structure that is formed through a MEMS process. The method of claim 1,
The reflector includes a plurality of reflecting surface arrangement disposed adjacent to each other along the circumference. The method of claim 1,
The reflector is in the form of a column,
The pillar shape is a light reflecting structure that is a form that the cross-sectional area becomes narrower toward the top. In the lighting device,
The light reflecting structure according to claim 1;
A heat dissipation unit disposed under the light reflecting structure;
A printed circuit board electrically connected to the light source; And
Lighting device including a power supply for supplying power to the light source. The method of claim 7, wherein
The radiator includes a plurality of ring structures are stacked spaced apart from each other. 9. The method of claim 8,
The radiating unit further comprises a spacer for separating the plurality of ring structures from each other. The method of claim 7, wherein
And the printed circuit board is disposed under the heat dissipation unit. The method of claim 7, wherein
And a diffuser layer surrounding a circumference and an upper side of the light reflecting structure such that the light reached through the reflecting surface is diffused.

Images