KR101781162B1 - LED lighting apparatus - Google Patents

LED lighting apparatus Download PDF

Info

Publication number
KR101781162B1
KR101781162B1 KR1020160004502A KR20160004502A KR101781162B1 KR 101781162 B1 KR101781162 B1 KR 101781162B1 KR 1020160004502 A KR1020160004502 A KR 1020160004502A KR 20160004502 A KR20160004502 A KR 20160004502A KR 101781162 B1 KR101781162 B1 KR 101781162B1
Authority
KR
South Korea
Prior art keywords
plate
reflection
grooves
led
housing
Prior art date
Application number
KR1020160004502A
Other languages
Korean (ko)
Other versions
KR20170085203A (en
Inventor
윤재두
Original Assignee
이엔이엘이디 주식회사
주식회사 엘티엘
윤재두
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이엔이엘이디 주식회사, 주식회사 엘티엘, 윤재두 filed Critical 이엔이엘이디 주식회사
Priority to KR1020160004502A priority Critical patent/KR101781162B1/en
Publication of KR20170085203A publication Critical patent/KR20170085203A/en
Application granted granted Critical
Publication of KR101781162B1 publication Critical patent/KR101781162B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1204—Optical Diode
    • H01L2924/12041—LED

Abstract

The transparent plate provided at the opening of the housing is made of a transparent material so that more than 99% of the light emitted from the LED module can pass therethrough and at the same time, the shading phenomenon occurring in the conventional diffusion plate of translucent or milky material can be improved The light emitted from the LED module is reflected and refracted by the reflection curved surface portion, and at the same time, the diameter of the reflection curved surface portion increases toward the circular plate portion. Thus, the LED light diffusing property and the area of the light distribution curve can be increased. By forming the first grooves and the second grooves which are formed in the same lattice pattern on the both sides and have different directions, the irregular reflection of the LED light is induced through the first grooves and the second grooves, The coupling between the reflection plate and the transmission plate, and the coupling between the reflection plate and the housing are configured to be robust without a separate coupling tool So that assembly and disassembly are facilitated.

Description

{LED lighting apparatus}

The present invention relates to an LED light fixture, and more particularly, to an LED light fixture which is capable of effectively preventing shading by not using a translucent or milky diffusion plate, and a reflective plate and a transmissive plate in front of the LED module, And to improve the light efficiency and facilitate the assembly of the LED illumination lamp.

As the lighting infrastructure is expanded and the interest in lighting is increasing, the demand for lighting is increasing to account for 20% of the total electricity consumption.

Particularly, LED illumination is a light emitted by using a light emitting diode as a light source. Due to advantages such as long lifetime, low maintenance ratio, and environment-friendly effect, the types and applications of LED lights are gradually expanding. Such LEDs are generally excellent in luminance and straightness , And the diffusibility is low.

Accordingly, a solution for solving the disadvantages of the LED is as follows: 1) a diffusion plate which is installed in front of the LED to diffuse the light emitted from the LED, 2) a lens which is installed outside the LED and refracts the LED light to diffuse the light Has been studied and widely used.

First, as for the diffuser plate, the conventional diffuser plate is formed of a plate material of a milky or translucent material so as to be spaced apart from the front of the LED module, thereby diffusing light emitted from the LED module.

However, since the conventional diffusing plate is formed of a translucent or milky white plate material, it has a disadvantage of lowering the illumination efficiency of the lighting fixture because it has a structural limit of passing only 65 to 75% of the LED light.

1 (a) is a side sectional view showing a conventional LED illumination lamp apparatus, and FIG. 1 (b) is a plan view of (a).

As shown in FIG. 1 (a), a conventional LED illumination lamp 100 includes an illumination unit 101 including LED modules 111, an electric element, and a power supply unit, a housing 101 having a front surface, A diffusion plate 105 formed at an opening of the housing 103 and formed with an opening at the center thereof and provided at an opening of the housing 103 to form a diffusion plate 105 And a heat dissipating unit 109 for dissipating the heat generated from the LED module 111. [

The conventional LED light fixture 100 having the above-described structure can solve the disadvantage of the LED that diffuses light because the light emitted from the LED modules 111 is refracted by the diffusion plate 105.

However, in the conventional LED lighting fixture 100, the diffusion plate 105 is formed to be semitransparent or milky, and at the same time, the diffuse plate 105 is shaded as shown in FIG. 1 (b) Are repeatedly formed in such a manner as to intersect with each other, and such shading deteriorates the uniformity of the light and deteriorates the function as illumination.

That is, in the conventional LED light fixture 100, light is concentrated in the region 151 of the diffusion plate 105 disposed immediately under the LED module 111, but the light is concentrated in the space 151 between the adjacent LED modules 111 Shadows are formed in the region 153 of the diffuser plate 105 disposed directly underneath.

As a method for improving the shade of the LED illumination lamp apparatus, there is a method of forming the diffusion plate as a transparent material or closely arranging the LED modules 111 closely. However, when the diffusion plate is formed of a transparent material, It is disadvantageous in that the number of unnecessary LED modules is increased and economic efficiency and efficiency are deteriorated when the LED modules 111 are closely arranged closely.

Meanwhile, the method of installing the lens outside the LED can increase the diffusing property of the LED light as the LED light is refracted by the lens, but only 70 ~ 85% of the LED light passes through the lens, The manufacturing cost and the manufacturing cost increase due to the manufacturing of the lens according to the size and shape of the lens.

Korean Patent No. 10-1525425 discloses a lighting device capable of attaching and detaching a transmission cover to a housing through a simple operation in a lighting device equipped with a cover having an assembled property and a high bonding force, As described above, since the transmission cover is formed of translucent or milky material, not only the light efficiency is lowered but also the transmission cover is shaded.

1) It is possible to improve the light efficiency and improve the shading phenomenon by forming the diffuser plate in a transparent material, 2) LED illuminator that can increase the diffusing property of LED light without using the conventional diffuser plate of translucent or milky material Research on the mechanism is urgent.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method of manufacturing an LED module in which a transparent plate provided in an opening of a housing is made of a transparent material, Which is capable of remarkably improving the shading phenomenon occurring in the conventional diffuser plate of the present invention.

Another object of the present invention is to provide an LED module which is capable of increasing the diameter of the reflection curved surface portion by increasing the diameter of the reflection curved surface portion toward the circular plate portion while reflecting and refracting the light emitted from the LED module by the reflection curved surface portion, Which can increase the brightness of the LED illumination lamp.

Further, another object of the present invention is to maximize the utilization of the reflecting means for the light emitted from each of the LED modules regardless of the position of the LED module by providing one reflecting means outside each of the LED modules, , An illumination range, and a uniformity of light can be remarkably improved.

Further, another object of the present invention is to provide a method of manufacturing a light emitting device that induces irregular reflection of LED light through first grooves and second grooves by forming first grooves and second grooves which are formed in the same lattice pattern on both sides of a transmissive plate, So that the light diffusing property and the light distribution curve area can be further increased.

In addition, another object of the present invention is to provide an LED lighting fixture which can be assembled and disassembled easily by combining the reflection plate and the transmission plate, and the reflection plate and the housing together without any separate coupling tool.

According to an aspect of the present invention, there is provided an LED lighting apparatus including a substrate on which LED modules are mounted, and a housing having a front surface and an opening in which the substrate is installed, the apparatus comprising: A reflection plate installed at a front side of the modules, the reflection plate being formed at one side of the plate with a circular shape inwardly and having reflection gaps with an LED exposure hole formed at an end thereof at intervals; The reflective plate is formed of a transparent plate material and is provided on the reflective plate. The reflective plate includes irregular reflection portions formed of a grating pattern groove on one surface thereof, and diffused reflection grooves formed on the other surface, And the diffusive reflection parts and the irregular reflection grooves are formed to correspond to the positions of the reflection curved surfaces of the reflection plate.

In addition, in the present invention, the diffusive reflection parts are formed on the one surface of the permeable plate so as to protrude outward, grooves having lattice pattern on the protruding surface, and the irregular reflection grooves are formed on the other surface of the permeable plate, Grooves are formed in the reflection plate, and the diffusing portions are inserted into the reflection curved surface portions of the reflection plate when the transmission plate is assembled.

Also, in the present invention, the grooves of the diffusive reflection parts and the grooves of the irregular reflection grooves are formed in the same lattice pattern and formed in different directions.

Also, in the present invention, it is preferable that the grooves of the diffusive reflection parts and the grooves of the irregular reflection grooves form a 45 ° rotation state in a plane.

Also, in the present invention, it is preferable that one end of the reflection curved surface portions is formed on one side of the reflection plate, while the other side protrudes outward from the other side of the reflection plate.

Also, in the present invention, it is preferable that the radius of curvature of the reflection curved surface portions decreases toward the outer side.

Further, in the present invention, the reflection plate may further include an extension portion extending from the outer periphery to the outer periphery of the reflection plate, the extension portions being spaced apart from each other by the engagement grooves passing through the both sides, And the engaging portions of the transmissive plate are inserted into the engaging groove of the reflective plate so that the transmissive plate is coupled to the reflective plate.

In the present invention, it is preferable that the LED lighting lamp further includes a cover, and the housing has a latching protrusion formed on an inner wall connected to a front surface thereof, the extension portion is seated on a latching jaw of the housing, The one surface facing the housing presses the transmission plate coupled to the reflection plate.

According to the present invention having the above-mentioned problems and solutions, it is possible to make the transparent plate provided at the opening of the housing made of a transparent material so that more than 99% of the light emitted from the LED module passes through the transparent plate, The shading phenomenon that occurs can be remarkably improved.

In addition, according to the present invention, the light emitted from the LED module is reflected and refracted by the reflection curved surface portion, and at the same time, the diameter of the reflection curved surface portion increases toward the disc portion, thereby increasing the diffusing property of the LED light and the area of the light distribution curve.

According to the present invention, the first grooves and the second grooves, which are formed in the same lattice pattern and have different directions, are formed on both sides of the transmission plate, thereby inducing the diffuse reflection of the LED light through the first grooves and the second grooves, It is possible to further increase the area of the gender and the light distribution curve.

According to the present invention, since one reflection means is provided outside each of the LED modules, utilization of the reflection means for light emitted from each of the LED modules is maximized irrespective of the position of the LED module, The uniformity of the light can be remarkably improved.

According to the present invention, the coupling of the reflection plate and the transmission plate, and the coupling of the reflection plate and the housing are configured to be robust without any separate coupling tool, thereby facilitating assembly and disassembly.

1 (a) is a side sectional view showing a conventional LED illumination lamp apparatus, and FIG. 1 (b) is a plan view of (a).
2 is a perspective view showing an LED illumination lamp apparatus according to an embodiment of the present invention.
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
4 is a side sectional view of Fig.
5 is a perspective view showing the reflection plate of Fig. 3;
FIG. 6 is a perspective view of FIG. 5 viewed from another angle. FIG.
7 is a sectional view taken along the line A-A 'in Fig.
Fig. 8 is a perspective view showing the transmissive plate of Fig. 3;
9 is a sectional view taken along the line B-B 'in Fig.
10 (a) is a plan view showing the first groove in Fig. 8, and Fig. 10 (b) is a plan view showing the second groove in Fig.
11 is an exemplary view for explaining the flow of light emitted from the LED module of the present invention.
12 is a side view showing a second embodiment of the reflector of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a perspective view showing an LED illumination lamp apparatus according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 4 is a side sectional view of FIG.

2 to 4 includes a housing 3, an illumination unit 4, a reflection plate 5, a transmission plate 7, and a cover 9. The LED lighting fixture 1 shown in Figs.

The illumination unit 4 includes LED modules 41 and a substrate 43 on which the LED modules 41 are installed. At this time, the substrate 43 may be formed of various polygonal or circular plate materials. In the present invention, the substrate 43 is formed of a circular plate corresponding to the shape of the housing 3, for example.

The lighting unit 4 includes a power source, an electric element, and a circuit for driving the LED modules 41. [

The illumination unit 4 is installed inside the housing 3 so that light emitted from the LED module 41 passes through the opening of the housing 3. [

The housing 3 is formed in a cylindrical shape having a front opening and a receiving space inside.

In the present invention, the housing 3 is formed in a cylindrical shape for convenience of explanation. However, it is needless to say that the shape of the housing 3 is not limited thereto, but may be a polyhedron.

The lighting unit 4 is installed in the housing 3 so that the LED modules 41 emit light toward the opening.

A reflection plate 5, a transmission plate 7, and a cover 9 are provided in order in the opening of the housing 3. At this time, the housing 3 has a bolt hole 311 formed at the edge of the front surface 31 forming the opening, and the cover 9 is coupled by bolts (not shown).

The housing 3 is formed with a locking protrusion 331 on the inner wall 33 connected to the front face 31 and the locking protrusion 331 extends along the inner circumferential face of the inner wall 33 so that both ends are connected to each other . The hook 331 is formed to have the same size as the outer diameter of the extended portion 53 of the reflector 5 of FIGS. 5 to 7 described later. Thus, the hook 333 is formed with the extended portion 53 of the reflector 5, As shown in Fig.

The cover 9 is formed of a circular plate having an opening at its center, and is bolted to the front face 31 of the housing 3.

The outer diameter of the cover 9 is the same as that of the front surface of the housing 3, and the inner diameter of the cover 9 is smaller than the outer diameter of the transmitting plate 7. The cover 9 is attached to the front face 31 of the housing 3 at the time of assembly so that the inner end of the cover 9 as seen in a plan view is in contact with the inner end of the engaging jaw 331 of the housing 3 So that one side of the rim presses the rim of the transmissive plate 7 which is in contact with the reflective plate 5 which is seated on the latching jaw 331 of the housing 3. [

In other words, the cover 9 is formed to have a width larger than the width of the rim of the front surface 31 of the housing 3, so that the reflection plate 5 and the transmission plate 5, which are seated on the latching jaw 331 of the housing 3, The rim of the housing 7 can be pressed by the cover 9 so that the reflecting plate 5 and the transmitting plate 7 can be coupled to the housing 3. The opening of the cover 9 is closed by the transparent plate 7 so that the light from the LED modules 41 passes through the openings of the transparent plate 7 and the cover 9 and exits to the outside.

FIG. 5 is a perspective view showing the reflection plate of FIG. 3, FIG. 6 is a perspective view of FIG. 5 viewed from another angle, and FIG. 7 is a sectional view taken along line A-A 'of FIG.

5 to 7, the reflection plate 5 includes a disc portion 51 formed of a circular plate member having a thickness and an extension portion (not shown) extending outward from the outer periphery of one surface of the disc portion 51 53).

The rim of the extension portion 53 of the reflection plate 5 is seated on the latching jaw 331 of the inner wall 33 of the housing 3 during assembly.

The disk portion 51 is formed of a circular plate having a high light reflectance and a thickness. At this time, the outer diameter of the disc portion 51 is formed to be larger than the inner diameter of the opening of the cover 9.

In addition, circular plate portions 51 are formed on one surface with circular curved surface portions 511 spaced inwardly. At this time, the reflection curved surface portions 511 are formed on one surface of the disc portion 51 at one end and protrude outward from the other surface of the disc portion 51 at the other end.

The reflection curved surface portions 511 are formed with LED exposing holes 515 at the end portion protruding from the disk portion 51.

In addition, the reflection curved surface portions 511 are formed so as to have a smaller diameter from the disk portion 51 toward the outside.

In other words, the reflection plate portion 51 has a reflection curved surface portion 511 on its one side, a reflection curved surface portion 511 on its other side and a reflection curved surface portion 511 protruding from the other surface of the circular plate portion 51, Is formed in a conical shape whose diameter decreases toward the outside.

In addition, the reflector 5 is assembled with the extension portion 53 at the assembling jaw 331 of the inner wall 33 of the housing 3, and the reflection curved surface portion 511 of the reflector 5 has an outer end, (Not shown). The projection length of the reflection curved surface portion 511 protruding from the other surface of the circular plate portion 51 of the reflection plate 5 is formed to be the same as the distance from the substrate 43 of the illumination portion 4 to the reflection plate 5.

Each of the LED modules 41 is inserted into the LED exposure hole 515 of the reflective curved surface portion 511 protruding from the other surface of the disk 51 at the time of assembling the reflector 5 and exposed to the outside. That is, the reflection curved surface portions 511 of the reflection plate 5 are formed in the same position and quantity as the positions and the quantity of each of the LED modules 41, so that each of the LED modules 41 during assembly includes the LEDs 41 of the reflection curved surface portion 511 The light emitted from the LED module 41 is refracted and reflected by the reflecting surface of the reflection curved surface portion 511 of the reflection plate 5 to be diffused .

The extension portion 53 is formed in a strip shape extending from the outer periphery to the outer periphery of the other surface of the disk portion 51. In this case, the other surface of the disc portion 51 means a surface on which the reflection curved surface portion 511 protrudes.

Further, the extending portion 53 is formed with spacing grooves 531 passing through both sides. At this time, the engaging portion 73 of the transmitting plate 7 is inserted into the latching groove 531, so that the transmitting plate 7 and the reflecting plate 5 are engaged with each other.

The LED module 41 of the present invention is exposed to the outside through the LED exposure holes 515 of the reflection curved surface portions 511 of the reflection plate 5 and the LED modules 41 Is surrounded by the reflection surface which is the inner circumferential surface of the reflection curved surface portion 511 whose diameter increases toward the disk portion 51. Therefore, the area of the light distribution curve due to the LED light is the same as the reflection curved surface formed on one surface of the disk portion 51 And increases in proportion to the diameter of the portion 511.

8 is a cross-sectional view taken along the line B-B 'in FIG. 8, FIG. 10 (a) is a plan view showing the first groove in FIG. 8, Is a plan view showing the second groove of Fig.

The permeable plate 7 shown in Figs. 8 and 9 includes a permeable plate body 71 formed in a circular plate shape and a plurality of engaging portions 73 disposed perpendicularly to the outer peripheral edge of the permeable plate body 71 and spaced apart from each other .

The transparent plate body 71 is formed of a transparent plate, and one surface of the transparent plate body 71 is placed on one surface of the reflector 5 during assembly.

In addition, the transmissive plate body 71 is protruded on the one surface with irregular reflection portions 711 spaced therebetween.

At this time, the irregular reflection portions 711 are formed corresponding to the position, size and quantity of the reflection curved surface portion 511 formed on one surface of the reflection plate 5, do.

The transparent plate body 71 is formed on the other surface with circularly irregularly reflecting grooves 716 spaced from the other surface inwardly.

In addition, lattice pattern grooves are formed on the outer surface of the diffusive reflection part 711 of the transparent plate body 71 and the bottom surface of the irregularly reflective groove part 716.

As shown in FIGS. 10A and 10B, the grooves 713 formed on the protruding surface of the diffusive reflecting portion 711 and the grooves 718 formed on the bottom surface of the irregularly reflecting grooves 716 The light reflected and reflected by the reflective curved surface portion 511 of the outgoing reflector 5 from the LED module 41 is diffusely reflected to form a light reflection surface 511, It is possible to increase uniformity and diffusibility.

In other words, the light emitted from the LED module 41 is reflected and refracted by the reflection curved surface portion 511 while passing through the LED exposure hole 515 of the reflection curved surface portion 511 of the reflection plate 5, The diffused light passes through the grooves 713 of the diffusive reflection part 711 and the grooves 718 of the irregularly reflecting grooves 716 of the transmissive plate 7 to further increase irregular reflection and increase the uniformity of light.

8 and 9 are inserted into each of the engagement grooves 531 of the reflection plate 5 during assembly.

When the lighting unit 4 is installed inside the housing 3 so that the light emitted from the LED module 41 passes through the opening of the housing 3, The extended portion 53 of the reflector 5 is seated in the engaging protrusion 331 of the housing 3 with the retaining portion 73 of the transmitting plate 7 inserted into the retaining groove 531 of the reflecting plate 5 .

When the cover 9 and the housing 3 are bolted together in this state, the rim of the cover 9 presses the rim region of the transmitting plate body 71 of the transmitting plate 7, 7 are coupled to the housing 3.

11 is an exemplary view for explaining the flow of light emitted from the LED module of the present invention.

11, the LED lighting device 1 according to an embodiment of the present invention is configured such that the LED module 41 is exposed to the outside through the LED exposure hole 515 of the reflection curved surface portion 511, The light emitted from the light source 41 is reflected and refracted on the inner peripheral surface of the reflection curved surface portion 511. At this time, the reflection curved surface portion 511 is formed to have an increased diameter toward the circular plate portion 51 with the LED exposing hole 515 as a vertex, so that the area of the light distribution curve can be increased.

The LED light that is refracted and reflected by the reflection curved surface portion 511 as the diffusive reflection portion 711 of the transmission plate body 71 of the transmission plate 7 is inserted into the reflection curved surface portion 511 passes through the transmission plate body 71 Diffused and scattered by the groove 713 of the diffuse reflection part 711 of the diffuse reflection part 711.

The LED light which is irregularly reflected by the groove 713 of the diffusive reflection part 711 passes through the adjacent transmission plate body 71 or passes through the groove 718 of the irregular reflection groove part 716 formed on the other surface of the transmission plate body 71, And scattered again.

That is, according to the LED lighting device 1 of the present invention, the diffusing property of the LED light is increased by the reflection plate 5 and the transmission plate 7 to increase the light distribution area, and at the same time, the diffusion plate of an opaque material is not used, By using the transmissive plate 7, it is possible to reliably remove the shade formed on the diffusing plate.

12 is a side view showing a second embodiment of the reflector of the present invention.

The reflection plate 6 shown in Fig. 12 includes a second disk portion 61 formed of a circular plate member and a second extended portion 63 extending outwardly from the outer peripheral surface of one surface of the second disk portion 61.

The second disk portion 61 is formed of a circular plate having a high light reflectance and a thickness. At this time, the second disk portion 61 is formed to have an outer diameter larger than the inner diameter of the opening portion of the cover 9.

In addition, the second disc portion 61 is formed with the same reflection curved surface portions 511 on one surface at intervals as described above with reference to FIGS.

 In addition, the second circular plate portion 61 is formed with the second reflection curved surface portions 620 in a conical shape between the adjacent reflection curved surface portions 511 among the reflection curved surface portions 511 formed on one surface.

At this time, the second curved surface portions 62 are formed into a conical shape whose diameter decreases from the second circular plate portion 61 toward the outside.

In other words, conical convex curved surface portions 511 and second convex curved surface portions 620 are formed on both sides of the second disk portion 61 so as to protrude outward from both sides and have a smaller diameter toward the outside.

That is, the LED module 41 is exposed to the outside through the LED exposure hole 615 of the reflection curved surface portion 611 at the time of assembling the reflector 6, and on the outside of the exposed LED module 41, The light emitted from the LED module 41 is refracted and reflected by the reflection curved surface portion 611 of the reflection plate 6 and the light refracted and reflected by the reflection curved surface portion 611 is reflected by the reflection surface 611 of the W And is configured to be refracted and reflected again by the second reflection curved surface portion 620, whereby the diffusibility of the LED light can be remarkably increased.

1: LED lighting device 3: housing 4: lighting part
5: reflector 7: transmission plate 9: cover
31: front panel 41: LED module 43: substrate
51: disc portion 53: extension portion 511:
515: LED exposure hole 71: transmission plate body 73:
711: diffuse reflection part 713: groove 716: diffuse reflection groove
718: Home

Claims (8)

A LED lighting apparatus including a substrate on which LED modules are installed, and a housing having a front surface opened and on which the substrate is installed, the apparatus comprising:
A reflection plate formed of a plate member of a light reflector and disposed in front of the LED modules, the reflection plate being formed on one side of the plate and circularly curved inside the LED plate,
The reflection plate is formed of a transparent plate material and is provided on the reflection plate. The reflection plate is formed on one side of the reflection plate and has irregular reflection portions formed of a grating pattern groove. / RTI >
Wherein the diffusive reflection parts and the irregular reflection grooves are formed to correspond to positions of the reflection curved surface parts of the reflection plate,
The irregularly reflecting portions are formed on the one surface of the transmitting plate so as to protrude outward and have grooves on the protruding surface. The irregularly reflecting grooves are formed on the other surface of the transmitting plate so that grooves Formed,
Wherein the transparent plate is inserted into the reflection curved surface portions of the reflection plate when the diffused reflection portions are assembled. delete The LED lighting device according to claim 1, wherein the grooves of the diffusive reflection parts and the grooves of the irregular reflection grooves are formed in the same grid pattern and are formed in different directions. The apparatus according to claim 3, wherein the grooves of the diffusive reflection parts and the grooves of the irregular reflection grooves form a planar 45 ° rotation state. The LED backlight unit according to any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19, wherein one end of the reflection curved surface portion is formed on one surface of the reflection plate, Instrument. 6. The LED lighting device as claimed in claim 5, wherein the reflection curved surface portions have a smaller diameter toward the outside. [Claim 6] The reflection plate of claim 6, wherein the reflection plate further includes an extension part extending from the outer periphery to the outer periphery and spaced apart from each other,
Wherein the permeable plate further includes engaging portions vertically protruding from an outer circumference at an outer circumference,
Wherein the engaging portions of the transmissive plate are inserted into the engaging groove of the reflector so that the transmissive plate is coupled to the reflector. The LED lighting apparatus according to claim 7, further comprising a cover,
The housing has a locking protrusion formed on an inner wall of the housing,
Wherein the reflector is configured such that the extension portion is seated in the latching jaw of the housing and the cover faces the housing when the cover faces the transmission plate coupled to the reflector.
KR1020160004502A 2016-01-14 2016-01-14 LED lighting apparatus KR101781162B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160004502A KR101781162B1 (en) 2016-01-14 2016-01-14 LED lighting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160004502A KR101781162B1 (en) 2016-01-14 2016-01-14 LED lighting apparatus

Publications (2)

Publication Number Publication Date
KR20170085203A KR20170085203A (en) 2017-07-24
KR101781162B1 true KR101781162B1 (en) 2017-09-22

Family

ID=59428978

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160004502A KR101781162B1 (en) 2016-01-14 2016-01-14 LED lighting apparatus

Country Status (1)

Country Link
KR (1) KR101781162B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003031003A (en) 2001-07-11 2003-01-31 Sony Corp Planar light source device and display device
JP2005197143A (en) 2004-01-09 2005-07-21 Sharp Corp Backlight device
WO2007037035A1 (en) 2005-09-28 2007-04-05 The Furukawa Electric Co., Ltd. Light box, light reflector for the same, and method for producing light reflector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003031003A (en) 2001-07-11 2003-01-31 Sony Corp Planar light source device and display device
JP2005197143A (en) 2004-01-09 2005-07-21 Sharp Corp Backlight device
WO2007037035A1 (en) 2005-09-28 2007-04-05 The Furukawa Electric Co., Ltd. Light box, light reflector for the same, and method for producing light reflector

Also Published As

Publication number Publication date
KR20170085203A (en) 2017-07-24

Similar Documents

Publication Publication Date Title
US8382354B2 (en) Lighting module and lighting apparatus including the same
KR101028201B1 (en) Lens and lighting unit having thereof
US8702270B2 (en) Tube type LED lighting assembly
JP2013045651A (en) Lighting fixture
JP2008293769A (en) Luminaire
JP5879548B2 (en) Lighting device
EP2314911A2 (en) Light source apparatus
US10119682B2 (en) Luminaire having improved uniformity of output
TW201307753A (en) Planar illumination light source apparatus using light emitter
JP2009158473A (en) Lighting device
EP2474776A1 (en) Light source device, illumination device, and display device
KR101502576B1 (en) Anti-glare LED lighting apparatus
KR101781162B1 (en) LED lighting apparatus
JP2014116206A (en) Illumination device
JP2011129405A (en) Lighting system
KR20090119572A (en) Lighting apparatus for light emitting diode
JP2019106370A (en) Lighting fixture
KR100933630B1 (en) Lighting apparatus using led
JP2018078001A (en) Luminaire
JP5968724B2 (en) LIGHTING MODULE AND LIGHTING DEVICE HAVING THE SAME
JP2017067831A (en) Lens and light-emitting device
WO2013187499A1 (en) Illumination device
CN215862932U (en) Lamp fitting
CN216643877U (en) Anti-dazzle lamp
CN216047226U (en) Ceiling lamp

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant