KR20150112326A - lighting device - Google Patents

Abstract

The present invention relates to a lighting device, capable of being used for a variety of purposes such as indoor lighting or outdoor lighting. The device includes a light emitting engine part installed in a storage space, and emitting light to the outside; and a reflector installed in the light emitting engine part, and reflecting the light, emitted from the light emitting engine part, in a lighting direction. The light emitting engine part includes a plate formed to face the storage space; a first transparent slope panel installed in a first side part of the plate, and inclined at a first angle in the lighting direction; a second transparent slope panel installed in a second side part of the plate, and inclined at a second angle in the lighting direction; and a light emitting module installed between the first slope panel and the second slope panel, and emitting the light to the storage space.

Description

Lighting device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus, and more particularly, to a lighting apparatus that can be used for a variety of lighting applications such as indoor lighting and outdoor lighting.

A light emitting diode (LED) is a kind of semiconductor device that can emit light of various colors by forming a light emitting source through the formation of a PN diode of a compound semiconductor. Such a light emitting device has a long lifetime, can be reduced in size and weight, and can be driven at a low voltage. In addition, these LEDs are resistant to shock and vibration, do not require preheating time and complicated driving, can be packaged after being mounted on a substrate or lead frame in various forms, so that they can be modularized for various purposes and used as a backlight unit A lighting device, and the like.

Conventional flat type lighting devices generally use direct type and edge type as typical ones. In the case of edge type, LGP, reflector sheet and diffuser plate are required in a necessary manner. there was.

That is, in the case of the direct method, there is a disadvantage in that a large number of LEDs are required to realize uniformity, and a luminance unevenness occurs when the LED interval is distant.

In addition, in the case of a conventional flat panel lighting device, there is a power supply device (SMPS) on the outside, and a protective case or the like should be additionally mounted on the exterior due to a stability problem, and a protruding type The structure shall be installed. There is a problem in that the additional cost is consumed and the aesthetic appearance is deteriorated due to the protruding shape in terms of structure.

In addition, even in such an indirect lighting apparatus, there is a disadvantage that the thickness of the product is thicker than that of the other types due to the reflection path of light, thereby increasing the size and weight of the product. In particular, since the light is controlled by using a flat or curved reflector, there is a difficulty in controlling the uniformity and light distribution of the light emitting portion of the product.

SUMMARY OF THE INVENTION The present invention has been made to solve the various problems including the above problems, and it is an object of the present invention to provide a structure without LGP and reflector sheets required in the conventional edge method, It is possible to reduce the quantity of LEDs that have been used by using Reflector type structure, and it has excellent aesthetics with built-in power supply, it can save additional cost, and it is possible to install the power supply (SMPS) (Pyramid, hemisphere, cone, etc.) can be installed to control the light to a desired position, thereby improving the light uniformity. An object of the present invention is to provide a lighting apparatus. However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided an illumination device including a light emitting engine unit having a receiving space therein and emitting light to the outside; And a reflector installed in the light emitting engine unit and reflecting the light emitted from the light emitting engine unit in an illumination direction, wherein the light emitting engine unit comprises: a flat plate having a reflecting surface formed toward the receiving space; A first inclined plate of translucent material provided on a first side of the flat plate and inclined at a first angle toward the illumination direction; A second inclined plate of a translucent material provided on a second side of the flat plate and inclined at a second angle toward the illumination direction; And a light emitting module installed between the first inclined plate and the second inclined plate and emitting light toward the accommodation space.

According to an aspect of the present invention, the light emitting engine unit further includes a power supply unit installed in an intermediate portion of the flat plate or the accommodation space, and the light emitting engine unit may include a box- Wherein the reflection plate is a rectangular panel or a circular panel which is installed so as to surround the periphery of the light emitting engine unit, wherein the first swash plate and the second swash plate are a diffuser plate, A bar substrate or a disk-shaped module substrate on which heat radiation fins are exposed; And a light emitting device mounted on the module substrate.

According to an aspect of the present invention, the light emission engine unit may include a light guide plate provided between the first inclined plate and the flat plate and / or between the second inclined plate and the flat plate, And a guide member for guiding the guide member in the direction of the second swash plate. The guide member may be formed by selecting at least one of a concave concave surface, a vertical surface, a slope surface, and a combination thereof.

According to an aspect of the present invention, the first swash plate and / or the second swash plate may be rhombic.

The reflector may further include: a left inclined portion located on the left side of the light emitting engine portion; A right inclined portion located on the right side of the light emitting engine portion; A forward inclined portion positioned forward of the light emitting engine portion; And a rear inclined portion located behind the light emitting engine portion.

The left inclined portion, the right inclined portion, the forward inclined portion, and the backward inclined portion are integrally formed in a reflector shape, and the left inclined portion and the right inclined portion are each a diamond plate having a rhombic shape, The inclined portion and the backward inclined portion may be flat plates of two triangles each.

The illumination device according to the present invention may further include a fastening member provided between the light emitting engine and the reflector so that the light emitting engine can be detachably coupled to the reflector, , A contact portion, an uneven surface, a penetrating window, an interference fit groove, an interference fit projection, a screw, a bolt, a nut, a fixing pin, a magnet, a Velcro tape, a snap button and a combination thereof.

According to an aspect of the present invention, the reflecting surface of the flat plate may be at least one selected from the group consisting of a pyramid, a roof, a triangular-pyramid, a quadrangular pyramid, a hemisphere, a cone, a cone and combinations thereof so as to reflect light in various directions The reflection protrusions may be formed by size.

According to an aspect of the present invention, the light emitting element may include: a first light emitting element having a main emission axis at a first irradiation angle; And a second light emitting element having a main emission axis at a second irradiation angle.

According to an aspect of the present invention, the light emission engine portion may include: a third inclined plate disposed on a third side of the flat plate, the third inclined plate being made of a translucent material and formed to incline at a third angle toward the illumination direction; And a fourth inclined plate provided on a fourth side of the flat plate and made of a translucent material and inclined at a fourth angle toward the illumination direction, wherein the reflector includes a left inclined portion located on the left side of the light emitting engine, ; A right inclined portion located on the right side of the light emitting engine portion; A forward inclined portion positioned forward of the light emitting engine portion; And a rear inclined portion located behind the light emitting engine portion. The left inclined portion, the right inclined portion, the forward inclined portion, and the rear inclined portion may each be a diamond plate.

According to some embodiments of the present invention as described above, it is possible to reduce the manufacturing cost by reducing the number of parts, reduce the amount of LEDs installed, and provide a beautiful appearance by incorporating a power supply device, It is possible to increase the stability, improve the efficiency of assembly, and improve the light uniformity. Of course, the scope of the present invention is not limited by these effects.

1 is an exploded cross-sectional view of a part of a lighting device according to some embodiments of the present invention.
2 is a cross-sectional view showing an assembled state of the illumination device of FIG.
3 is a bottom perspective view showing the lighting apparatus of Fig. 1 in an inverted state.
Fig. 4 is a side view showing the illumination device of Fig. 3; Fig.
Fig. 5 is a bottom view showing the illumination device of Fig. 3;
FIG. 6 is an exploded perspective view of a part of the light emitting engine of the lighting apparatus of FIG. 3;
Fig. 7 is a perspective view showing the reflector of the illumination device of Fig. 3;
8 is a cross-sectional view illustrating a lighting apparatus according to some alternative embodiments of the present invention.
9 is a cross-sectional view illustrating a lighting apparatus according to still another embodiment of the present invention.
10 is a cross-sectional view illustrating a lighting apparatus according to still another embodiment of the present invention.
11 to 13 are perspective views showing various embodiments of the reflecting projection of the illumination device of FIG.
14 is a cross-sectional view showing a lighting device according to still another embodiment of the present invention.
15 is a cross-sectional view illustrating a lighting apparatus according to still another embodiment of the present invention.
16 is a cross-sectional view illustrating a lighting apparatus according to still another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, if the element is inverted in the figures, the elements depicted as being on the upper surface of the other elements will have a direction on the lower surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

1 is a fragmented cross-sectional view of a lighting device 100 according to some embodiments of the present invention. 2 is a cross-sectional view showing the assembled state of the illumination device 100 of Fig.

First, as shown in FIGS. 1 and 2, the lighting apparatus 100 according to some embodiments of the present invention may include a light emitting engine unit 10 and a reflector 20.

Here, the light emitting engine unit 10 may include an accommodation space A for introducing light and accommodating various components therein, and may be a box-shaped structure capable of emitting light to the outside.

1 and 2, the light emitting engine unit 10 includes a flat plate P, a first swash plate 11, a second swash plate 12, And a light emitting module 15.

1 and 2, the flat plate P may be a kind of panel made of a material such as metal or resin having a reflection surface Pa formed toward the accommodation space A. The flat plate P is not necessarily limited to the drawings, and may be manufactured in various shapes and various materials.

The reflective surface Pa may also be formed by an exposed surface of the flat plate P, a reflection-treated surface, a separate reflective coating layer, a reflective layer, or the like.

1 and 2, the first inclined plate 11 is provided on the first side P-1 of the flat plate P, that is, for example, on the left side, That is, an inclined panel made of a translucent material formed to be inclined at a first angle K1 toward an object of illumination. Here, the translucent material is a material that can transmit even a small amount of light, and can include both transparent and semitransparent materials.

1 and 2, the second swash plate 12 is provided on the second side P-2 of the flat plate P, that is, for example, on the right side, That is, an inclined panel of a translucent material formed to be inclined at a second angle K2 toward an object of illumination.

For example, the first swash plate 11 and the second swash plate 12 may be a diffuser plate. In addition, the first swash plate 11 and the second swash plate 12 may be provided with at least one or more layers of various panels such as various types of prism sheets, polarizing filters, color filters, and diffusion sheets.

More specifically, for example, as shown in FIG. 6, the first inclined plate 11 and / or the second inclined plate 12 may be rhombic to correspond to the inclined reflector 20.

1 and 2, the light emitting module 15 is installed between the first swash plate 11 and the second swash plate 12, and is disposed toward the accommodation space A And may be various types of light emitting members capable of emitting light.

More specifically, for example, as shown in FIGS. 1 and 2, the light emitting module 15 may include a module substrate 15-1 and a light emitting device 15-2.

6 is an exploded perspective view of the light emitting engine unit 10 of the lighting apparatus 100 of Fig.

1, 2 and 6, the module substrate 15-1 of the light emitting module 15 is formed with a radiating fin F which is exposed to the outside of the receiving space A Or a bar type substrate in which a plurality of the light emitting devices 15-2 are mounted inside.

The module substrate 15-1 may be made of a material or a conductive material having appropriate mechanical strength and insulation that can sufficiently support or accommodate the light emitting device 15-2.

For example, the module substrate 15-1 may be formed of a metal material such as aluminum, copper, zinc, tin, lead, gold, or silver which is insulated and processed by pressing, cutting, (F) may be formed.

Here, although not shown, various fixing members such as screws, bolts, constraining bumps, interference grooves, adhesives, and tapes may be provided to fix the above-described components to each other.

Meanwhile, the module substrate 15-1 is not limited to the drawing, and may be a lead frame in which a first electrode is provided in one direction with respect to the electrode separation space, and a second electrode is provided in the other direction.

In addition, the module substrate 15-1 may be a molding resin structure in which an electrode layer is formed. In addition, a printed circuit board (PCB) in which an epoxy resin sheet is formed in multiple layers may be applied to the module substrate 15-1. The module substrate 15-1 may be a Flexible Printed Circuit Board (FPCB) made of a flexible material.

In addition, the module substrate 15-1 may be a synthetic resin substrate such as a resin or a glass epoxy, or a ceramic substrate in consideration of thermal conductivity.

The module substrate 15-1 may be formed of at least one of EMC (Epoxy Mold Compound), PI (polyimide), ceramic, graphene, glass synthetic fiber and combinations thereof May be selected.

Therefore, the heat generated by the light emitting device 15-2 can be easily released to the outside, thereby enhancing the durability of the product, And the reliability can be improved.

Such an effect is different from conventional luminaires in which a light emitting module is incorporated, and may be one of the advantages that can be obtained in a lighting apparatus according to the technical idea of the present invention.

6, the light emitting module 15 is inserted into a guide groove G formed in an inclined surface 31 of the guide member 30, which will be described later, installed on the flat plate P, And the first swash plate 11 and the second swash plate 12 can also be held in contact with the inclined surface 31 of the guide member.

Meanwhile, as shown in FIGS. 1 and 2, the light emitting device 15-2 may be an LED mounted on the module substrate 15-1.

The light emitting device 15-2 may be a light emitting diode (LED) in the form of a flip chip having a first pad and a second pad.

As shown in FIGS. 1 and 2, the light emitting device 15-2 may be made of a semiconductor. For example, LEDs of blue, green, red, and yellow light emission, LEDs of ultraviolet light emission, and LEDs of infrared light emission, which are made of a nitride semiconductor, can be applied.

The light emitting element 15-2 may be formed of a nitride semiconductor such as InN, AlN, InGaN, AlGaN, or InGaAlN on a sapphire substrate for growth or a silicon carbide substrate by a vapor phase growth method such as MOCVD And then epitaxially grown. The light emitting element 1 may be formed using a semiconductor such as ZnO, ZnS, ZnSe, SiC, GaP, GaAlAs or AlInGaP in addition to the nitride semiconductor. These semiconductors can be stacked in the order of an n-type semiconductor layer, a light emitting layer, and a p-type semiconductor layer. The light emitting layer (active layer) may be a laminated semiconductor having a multiple quantum well structure or a single quantum well structure or a laminated semiconductor having a double hetero structure. Further, the light emitting device 15-2 can be selected to have an arbitrary wavelength depending on applications such as display use and illumination use.

Here, as the growth substrate, an insulating, conductive or semiconductor substrate may be used if necessary. For example, the growth substrate may be sapphire, SiC, Si, MgAl 2 O 4, MgO, LiAlO 2, LiGaO 2, GaN. A GaN substrate, which is a homogeneous substrate, is preferable for epitaxial growth of a GaN material, but a GaN substrate has a problem of high production cost due to its difficulty in manufacturing.

Sapphire and silicon carbide (SiC) substrates are mainly used as the different substrates. Sapphire substrates are more utilized than expensive silicon carbide substrates. When using a heterogeneous substrate, defects such as dislocation are increased due to the difference in lattice constant between the substrate material and the thin film material. Also, due to the difference in the thermal expansion coefficient between the substrate material and the thin film material, warping occurs at a temperature change, and warping causes a crack in the thin film. This problem may be reduced by using a buffer layer between the substrate and the GaN-based light emitting laminate.

Further, although not shown, the light emitting element 15-2 may be a flip chip type having a signal transmission medium such as a pump or a solder in addition to the pad. In addition, a bonding wire may be applied to the terminal, A light emitting element to which a bonding wire is applied only to a terminal or a second terminal, a horizontal or vertical type light emitting element, or the like can be applied.

In addition, the first pad and the second pad may be modified into various shapes other than the shapes shown in FIG. 1, and may have a finger structure having a plurality of fingers on one arm, for example.

As shown in FIG. 6, a plurality of the light emitting devices 15-2 may be arranged in a line on the module substrate 15-1. However, the light emitting device 15-2 is not limited to the drawings, but may be installed in various numbers or in various forms.

Although not shown, the light emitting device 15-2 may be in the form of a package in which various substrates, phosphors, transparent encapsulants, reflective encapsulants, lenses, and the like are additionally provided.

1 and 2, the light emitting engine unit 10 further includes a power supply unit 16 installed in the middle portion of the flat plate P or in the accommodation space A . Here, the power supply unit 16 may further include a switching mode power supply (SMPS), and various power supply units may be used.

Therefore, since the power supply unit 16 is installed in the accommodating space A and is not separately installed or protruded from the outside, it is excellent in aesthetic appearance, and it is possible to reduce the cost and time for assembling parts, have.

Therefore, it is possible to realize a simple structure in which the SMPS is embedded in the light emitting engine unit 10 so that only the AC power supply line can be extended to the outside as if there is no separate power supply unit in appearance of the product.

1, 2 and 6, the light emitting engine unit 10 of the lighting apparatus 100 according to some embodiments of the present invention includes the first inclined plate 11 and the flat plate 11, (P) and / or between the second inclined plate (12) and the flat plate (P), and the light reflected by the flat plate (P) is transmitted between the first inclined plate (11) and / 12) of the guide member 30. The guide member 30 may be formed of a metal plate.

Here, as shown in Figs. 1 and 2, the guide member 30 may be an inclined surface 31 having a reflective surface.

Therefore, the light generated by the light emitting engine unit 10 or the light reflected by the reflective surface Pa of the flat plate P is reflected by the inclined plane 31 to the first inclined plate 11 and the second inclined plate 11, And can be guided in the direction of the swash plate 12.

Fig. 3 is a bottom perspective view showing the lighting device 100 of Fig. 1 in an inverted state, Fig. 4 is a side view showing the lighting device 100 of Fig. 3, Fig. 5 is a bottom view of the lighting device 100 of Fig. 6 is an exploded perspective view showing the parts of the light emitting engine 10 of the lighting apparatus 100 shown in Fig. 3 and Fig. 7 is a perspective view showing the reflector 20 of the lighting apparatus 100 shown in Fig.

3 to 7, the light emitting engine unit 10 of the lighting apparatus 100 according to some embodiments of the present invention may have a box shape or a conical shape that is formed long in the longitudinal direction as a whole, The reflector 20 may be a partially inclined rectangular panel provided around the periphery of the light emitting engine unit 10. [

1 to 7, the reflector 20 is installed so as to surround the periphery of the light emitting engine unit 10, and is configured to emit light emitted from the light emitting engine unit 10 It may be a reflective panel that reflects in the illumination direction.

More specifically, for example, as shown in Figs. 1 to 7, the reflector 20 includes a left inclined portion 20-1 located on the left side of the light emitting engine portion 10, A right side slope part 20-2 located on the right side of the light emitting engine part 10 and a forward slope part 20-3 located on the front side of the light emitting engine part 10, And may include a rearwardly inclined portion 20-4.

3, 5 and 7, the left inclined portion 20-1, the right inclined portion 20-2, the forward inclined portion 20-3, and the rearward portion 20-2, The inclined portion 20-4 is a single integrated reflector and the left inclined portion 20-1 and the right inclined portion 20-2 are each a diamond plate having a shape of a rhombus and the forward inclined portion 20 -3) and the rear inclined portion 20-4 may be a triangular flat plate with two pieces each.

2, the operation of the illumination device 100 according to some embodiments of the present invention will be described. First, the light emitting device 15-2 of the light emitting module 15 generates The reflected light is reflected by the reflection surface Pa provided on the inner surface of the flat plate P so that a part thereof reaches the first inclined plate 11 and the other part reaches the second inclined plate 11, (12).

The light reaching the first inclined plate 11 is diffused so that a part of the light can be irradiated to the object to be illuminated and the other part is reflected to the left inclined portion 20-1 of the reflector 20, The light reaching the second swash plate 12 is diffused so that a part of the light can be irradiated to the object to be illuminated and the other part is reflected to the right inclined portion 20-2 of the reflector 20, And can be irradiated onto the object to be illuminated.

Therefore, the present invention is a kind of flat plate or the like in which the light emitting engine unit 10 and the reflector 20 are combined, and the light generated from the light emitting device 15-2 is firstly applied to the flat plate P And uniformly irradiated by the first inclined plate 11 and the second inclined plate 12 to finally realize a flat plate or the like having the optimum uniformity in the final stage .

Here, the first inclined plate 11, the second inclined plate 12, the left inclined portion 20-1, the right inclined portion 20-2, the forward inclined portion 20-3 And the rear slope part 20-4 can be changed or changed to have various orientation angles (60, 120, etc.).

1 to 7, the lighting apparatus 100 according to some embodiments of the present invention may be configured such that the light emitting engine unit 10 is detachably fastened to the reflector 20 And a fastening member 40 installed between the light emitting engine unit 10 and the reflector 20.

7, the fastening member 40 may include at least the contact portion 41, the uneven surface 42, and the penetrating window 43. As shown in FIG.

Therefore, the operator can assemble the light emitting engine unit 10 by fitting them to the contact portion 41, the uneven surface 42, and the through window 43 provided on the reflector 20, , The fastening member 40 may be formed by selecting at least one of a bonding member, a constraining groove, an engaging projection, a screw, a bolt, a nut, a fixing pin, a magnet, a Velcro tape, a snap button, .

8 is a cross-sectional view illustrating a lighting device 200 according to some alternative embodiments of the present invention.

8, the inductive member 30 of the illumination device 200 according to some other embodiments of the present invention may have a concave concave surface 32, having a reflective surface.

Therefore, the light generated by the light emitting engine unit 10 or the light reflected by the reflection surface Pa of the flat plate P can be reflected by the first inclined plate 11 and the second inclined plate 11, 2 swash plate 12, as shown in Fig.

9 is a cross-sectional view illustrating a lighting device 300 in accordance with some further embodiments of the present invention.

9, the guiding member 30 of the illumination device 300 according to some other embodiments of the present invention may have a reflective surface and may be a vertical, vertical surface 33. As shown in FIG.

Therefore, the vertical surface 33 is excellent in workability and assemblability, and the light emitted from the light emitting engine unit 10 or the light reflected from the reflective surface Pa of the flat plate P So that the reflected light can be guided toward the first inclined plate 11 and the second inclined plate 12.

At this time, various attaching and detaching protrusions or attaching and detaching grooves are formed in the vertical surface 33 so that the light emitting engine unit 10 and the reflector 20 can be assembled in a deteriorated manner.

10 is a cross-sectional view illustrating a lighting device 400 according to some further embodiments of the present invention, and Figs. 11-13 illustrate various embodiments of a reflective projection T of the lighting device 400 of Fig. 10 It is a perspective view.

10 to 13, the reflective surface Pa of the flat plate P of the illumination device 400 according to some other embodiments of the present invention is configured to reflect light in various directions The reflective projection T formed by selecting at least one of pyramidal (T-1), hemispherical (T-2), conical (T-3), roof, triangular, May be sequentially formed.

Here, the size, numerical value, tilting angle, and shape of the reflection protrusion T can be designed optimally according to the reflection environment. For example, the light uniformity can be improved by adjusting the direction and number of the reflection protrusions T to increase the amount of reflected light in a region where the dark portions can be generated.

Therefore, according to the idea of the present invention, it is possible to provide design advantages and a more flexible structure for the light distribution control by using the slope part and the reflection projection (T) as well as the various number and shape of the inclined plate, have.

When the light emitted from the light emitting engine unit 10 is primarily reflected by the flat plate P, the reflection protrusions T of the 3D reflector structure having the above-described various shapes are used, By arranging the size and position at the optimal position, it is possible to improve the uniformity and to reflect the light to the portion where the dark portion is generated, thereby removing the dark portion.

14 is a cross-sectional view illustrating a lighting device 500 according to some further embodiments of the present invention.

14, the light emitting element 15-2 of the illumination device 500 according to some other embodiments of the present invention is arranged such that the main light emitting axis is a first light emitting element having a first light emitting angle Q1 The element 15-21 and the second light emitting element 15-22 having the main emission axis at the second irradiation angle Q2 may be included. The first light emitting device 15-21 and the second light emitting device 15-22 may be arranged in a row in the longitudinal direction of the module substrate 15-1.

Therefore, it is possible to improve the light uniformity by controlling a more accurate light distribution angle in consideration of the light distribution characteristics of the first light emitting device 15-21 and the second light emitting device 15-22.

15 is a cross-sectional view illustrating a lighting device 600 in accordance with some further embodiments of the present invention.

As shown in Fig. 15, in the lighting apparatus 600 according to still another embodiment of the present invention, both the light emitting engine unit 10 and the reflector 20 may be circular. In this case, the light emitting engine unit 10 and the reflector 20 may be integrally formed, and the first inclined plate and the second inclined plate may be formed integrally with each other.

Accordingly, the user can select the rectangular illumination device 100 or the circular illumination device 600 according to some embodiments of the present invention, depending on the installation environment, and install the ceiling or the wall.

16 is a cross-sectional view illustrating an illumination device 700 in accordance with some further embodiments of the present invention.

16, the light emitting engine unit 10 of the lighting apparatus 700 according to some other embodiments of the present invention is installed on the third side P-3 of the flat plate P A third swash plate 13 of a translucent material formed to be inclined at a third angle toward the illumination direction and a third swash plate 13 provided at the fourth side P-4 of the flat plate P, The light reflecting engine 20 further includes a left inclined portion 20-1 located on the left side of the light emitting engine portion 10 and a second inclined portion 20-1 located on the left side of the light emitting engine portion 10, A forward inclined portion 20-3 positioned at the front of the light emitting engine portion 10 and a rear inclined portion 20-2 located at the rear of the light emitting engine portion 10, And includes a left inclined portion 20-1, a right inclined portion 20-2, a front inclined portion 20-3 and a rear inclined portion 20-3 20-4) Each may be a flat plate of a rhombic shape.

Therefore, the light path in all directions of the front, rear, left, and right directions can be derived using the third swash plate 13 and the fourth swash plate 14, which are additionally provided.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

A: accommodation space
10:
20: reflector
20-1: Left side inclined portion
20-2: right side inclined portion
20-3: forward inclined portion
20-4: rear inclined portion
P: Reputation
Pa: Reflective surface
11: first swash plate
12: 2nd swash plate
13: third swash plate
14: fourth swash plate
15: Light emitting module
15-1: Module substrate
15-2: Light emitting element
15-21: First light emitting element
15-22: a second light emitting element
16: Power supply
F: Heat sink fin
30:
31:
32: concave surface
33: Vertical plane
40: fastening member
41:
42: uneven surface
43: Through window
T: Reflective projection
100, 200, 300, 400, 500, 600, 700: Lighting device

Claims (10)

A light emitting engine unit having a receiving space therein and emitting light to the outside; And
And a reflector installed in the light emitting engine unit and reflecting light emitted from the light emitting engine unit in an illumination direction,
The light-
A flat plate having a reflecting surface formed toward the accommodation space;
A first inclined plate of translucent material provided on a first side of the flat plate and inclined at a first angle toward the illumination direction;
A second inclined plate of a translucent material provided on a second side of the flat plate and inclined at a second angle toward the illumination direction; And
A light emitting module installed between the first swash plate and the second swash plate and emitting light toward the accommodation space;
. The method according to claim 1,
The light-
And a power supply device installed in the middle part of the flat plate or in the accommodation space,
The light emitting engine unit may have a box shape or a conical shape,
The reflector is a rectangular panel or a circular panel which is disposed around the periphery of the light emitting engine and is partially inclined,
The first swash plate and the second swash plate are Diffuser plates,
The light emitting module includes:
A bar substrate or a disk-shaped module substrate on which heat dissipation fins are exposed to the outside of the accommodation space; And
And a light emitting element that is seated on the module substrate. The method according to claim 1,
The light-
An induction member installed between the first inclined plate and the flat plate and / or between the second inclined plate and the flat plate and guiding the light reflected from the flat plate toward the first inclined plate and / or the second inclined plate Including,
Wherein the guide member is formed by selecting at least one of a concave concave surface, a vertical surface, an inclined surface, and a combination thereof. The method according to claim 1,
Wherein the first swash plate and / or the second swash plate are rhombic. The method according to claim 1,
The reflector
A left inclined portion positioned on the left side of the light emitting engine portion;
A right inclined portion located on the right side of the light emitting engine portion;
A forward inclined portion positioned forward of the light emitting engine portion; And
A rear inclined portion located behind the light emitting engine portion;
. 6. The method of claim 5,
Wherein the left inclined portion, the right inclined portion, the forward inclined portion, and the rear inclined portion are in the form of a reflector plate,
Wherein the left inclined portion and the right inclined portion are flat plates each having a rhombic shape and each of the forward inclined portion and the backward inclined portion is a triangular flat plate having two each. The method according to claim 1,
And a coupling member provided between the light emitting engine and the reflector so that the light emitting engine can be detachably coupled to the reflector,
The fastening member may include at least one selected from at least one of a contact portion, an uneven surface, a penetrating window, an interference fit groove, an interference fit projection, a screw, a bolt, a nut, a fixing pin, a magnet, a Velcro tape, a snap button, Lt; / RTI > 3. The method of claim 2,
The reflective surface of the flat plate is formed with a plurality of reflective protrusions formed by selecting at least one of a pyramid, a roof, a triangular-pyramid, a quadrangular pyramid, a hemisphere, a cone, a cone, and a combination thereof so as to reflect light in various directions Lt; / RTI > 3. The method of claim 2,
The light-
A first light emitting element having a main light emitting axis at a first irradiation angle; And
A second light emitting element having a main light emitting axis at a second irradiation angle;
. The method according to claim 1,
The light-
A third inclined plate provided on the third side of the flat plate and made of a translucent material so as to be inclined at a third angle toward the illumination direction; And
And a fourth swash plate disposed on a fourth side of the flat plate and made of a translucent material so as to be inclined at a fourth angle toward the illumination direction,
The reflector
A left inclined portion positioned on the left side of the light emitting engine portion;
A right inclined portion located on the right side of the light emitting engine portion;
A forward inclined portion positioned forward of the light emitting engine portion; And
A rear inclined portion located behind the light emitting engine portion;
/ RTI >
Wherein the left inclined portion, the right inclined portion, the forward inclined portion, and the backward inclined portion are each a rhomboid flat plate.

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