KR20110076682A - The lighting device using light emission diode - Google Patents

The lighting device using light emission diode Download PDF

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Publication number
KR20110076682A
KR20110076682A KR1020090133438A KR20090133438A KR20110076682A KR 20110076682 A KR20110076682 A KR 20110076682A KR 1020090133438 A KR1020090133438 A KR 1020090133438A KR 20090133438 A KR20090133438 A KR 20090133438A KR 20110076682 A KR20110076682 A KR 20110076682A
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KR
South Korea
Prior art keywords
light emitting
emitting diode
light
present
line
Prior art date
Application number
KR1020090133438A
Other languages
Korean (ko)
Inventor
김태민
정태호
Original Assignee
김태민
정태호
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Filing date
Publication date
Application filed by 김태민, 정태호 filed Critical 김태민
Priority to KR1020090133438A priority Critical patent/KR20110076682A/en
Publication of KR20110076682A publication Critical patent/KR20110076682A/en

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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
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention relates to a light emitting diode lighting apparatus, and includes a plate on which at least one light emitting diode line consisting of a plurality of light emitting diodes arranged in a line and at least one supporting line is formed so as to be provided with a light emitting diode line, respectively. The plate further comprises a region capable of reflecting light generated from the light emitting diodes and further comprising a heat dissipation structure for dissipating heat generated from the light emitting diodes.

The light emitting diode illumination device of the present invention can increase the luminous efficiency by widening the area that can be irradiated with light emitted from the light source when the lighting is turned on.

Light Emitting Diode, Light Source, Reflector, Tilt

Description

Light emitting diode lighting device {The lighting device using Light Emission Diode}

The present invention relates to a light emitting diode lighting apparatus, and more particularly, to a light emitting diode lighting apparatus having a novel structure to improve the straightness of the light irradiated from the light emitting diode.

Recently, due to the remarkable growth of semiconductor devices, the use of light emitting diodes (LEDs) among semiconductor devices has been made in various fields. In particular, it is used as a light source of the lighting used in the dark close to our life to ensure a certain illuminance or more.

In particular, it is considered as a lighting means that can replace the existing fluorescent lamps with its advantages of semi-permanent life and low power consumption.

As the next-generation lighting material, the light emitting diode has been used as a lighting device such as an automobile headlight because the light emitting diode has a strong straightness in which the light emission direction is concentrated in one place instead of in all directions.

However, there are also various problems caused by the strong feature of this light straightness.

For example, when the light emitting diode is applied to a street lamp, the bottom of the street lamp is bright, but the peripheral area between the lamp posts becomes very dark.

In addition, there is a disadvantage in that it causes visual optical illusions to pedestrians or drivers who pass through the section where the light and dark sections are repeated, causing walking and traffic accidents.

In order to solve the problems of the prior art as described above, the present invention provides a light emitting diode lighting apparatus of a new structure that can improve the straightness of the light emitting diode lighting to increase the area that can be irradiated with light emitted from the light source when the lighting is turned on. I would like to.

The present invention for solving the above problems includes a plate on which at least one light emitting diode line consisting of a plurality of light emitting diodes arranged in a line and at least one support line is formed so that the light emitting diode lines may be provided, respectively, The plate further includes a region capable of reflecting light generated from the light emitting diodes, and further comprising a heat dissipation structure for dissipating heat generated from the light emitting diodes.

In particular, the LED device according to an aspect of the present invention is characterized in that a plurality of LEDs are provided at two or more different angles.

In particular, the LED device according to the present invention is characterized in that when two or more LED lines are provided, the cross-sectional angles of the two or more LED lines are provided at different angles.

In particular, the LED device according to a feature of the present invention is characterized in that the plate is formed in a step shape so that each LED line is arranged, the cross section of the LED lighting device is provided in a sawtooth shape.

In particular, the LED device according to an aspect of the present invention, the plate, characterized in that the surface provided with the LED line is coated with a reflective material.

In particular, the light emitting diode device according to the feature of the present invention is characterized in that the light emitting diode lines form a circle.

In particular, the LED device according to an aspect of the present invention is characterized in that two or more LED lines are provided to be symmetric with each other.

In particular, the LED device according to an aspect of the present invention is characterized in that the irradiation directions of the two or more LED lines overlap each other.

 As described above, the LED lighting apparatus of the present invention uses a plate whose cross section is stepped so that the LED lighting provided therein is made in one or more directions so that the light emitted from the light source can be irradiated when the lighting is turned on. It can also be applied to street lights that need to illuminate large areas.

In addition, according to the LED lighting apparatus of the present invention, the stepped plate having a cross section adopted to enlarge the area of the LED lighting has a large contact area with air, and thus can effectively dissipate heat generated from the light source into the air. .

In addition, according to the diode lighting apparatus of the present invention, since the reflecting plate includes a plating layer, the light emitted from the light source can be irradiated in a direction different from the irradiation direction of the light from the light source when the lighting is turned on, so that the irradiation area of the light emitted from the light source Can be further enlarged. Accordingly, the expandability of the light of the LED lighting apparatus can be further improved.

In addition, according to the diode lighting apparatus of the present invention, a plurality of light sources are arranged to be symmetrical in one or more directions, so that light can be irradiated in one or more directions, thereby further improving the expandability of the light of the LED lighting apparatus. In this case, the irradiation directions of the light emitting diodes arranged to overlap each other are designed so that the irradiation areas of the light are not separated from each other, thereby extending the entire irradiation area of the LED lighting apparatus.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a conceptual view schematically illustrating a light emitting diode lighting apparatus according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the light emitting diode lighting apparatus according to the first embodiment of the present invention.

As shown in FIGS. 1 and 2, the LED lighting apparatus according to the first embodiment of the present invention includes a plate 100 and a light emitting diode 200.

As shown in FIGS. 1 and 2, the plate 100 includes a support area and a reflection area, each of which is provided in a line shape, in which the plurality of light emitting diodes 200 are arranged in a line shape. The reflection area is disposed adjacent to the support area to reflect a part of light emitted from the light emitting diode when the light emitting diode disposed in the support area emits light in a direction different from the irradiation direction of the light of the light emitting diode.

The LED lighting apparatus of the present invention may have a structure having more than one support area and a reflection area. In this case, each of the support area and the reflection area is preferably configured to be symmetrical to each other. This symmetry can be line or point symmetry. In FIG. 1, the support area and the reflection area have a line symmetry. In detail, the sawtooth supporting region 120a and the reflecting region 120b are formed in a symmetrical shape at regular intervals with respect to the center line 110. Through this structure, the light generated from the light source 200 is effectively reflected through the reflection area 120b.

The reflective plate 100 is made of aluminum (Al) or magnesium (Mg) material for the heat dissipation and light weight of the light emitted from the light source 200 to emit to the outside. In addition, the reflective plate 100 is further provided with heat dissipation by providing a plating layer (not shown) on the surface.

The light source 200 is arranged to face the center line 110 on the inner inclined surface 120a formed in the reflector 100 to emit light.

The light source 200 is attached to a light emitting diode chip (not shown) on the upper surface of the PCB (not shown), and protects the light emitting diode chip (not shown) by molding the upper surface with epoxy. In addition, the light emitting diode chip (not shown) is formed by electrically connecting the adjacent circuit patterns, that is, a pair of electrodes (not shown) in the PCB substrate (not shown) through wire bonding, and the PCB substrate ( Not shown) is formed of a material that effectively transfers the heat energy generated from the light emitting diode chip 220.

The LED chip (not shown) may use a red device (not shown), a green device (not shown), and a blue device (not shown) (hereinafter referred to as an RGB device) or a white device (not shown). However, the use of a white device (not shown) is not only expensive to manufacture, but also lowers the use efficiency of lower luminance than other red devices (not shown) and green devices (not shown). Therefore, it is preferable to use an RGB device that can reduce the manufacturing cost and increase the luminance of the light emitting diode chip (not shown).

1 and 2 will be described in detail an embodiment of a light emitting diode lighting apparatus according to a first embodiment of the present invention. 3 is a first embodiment of the LED lighting apparatus according to the first embodiment of the present invention,

The LED lighting apparatus according to the first embodiment of the present invention is mounted on the side street lamp 300 to which the lamp is coupled to the side.

The LED lighting device is coupled to the inner surface of the lampshade 310 of the side street lamp 300, the reflector 100 is mounted on the inner surface serves to radiate heat and reflect light, the light source 200 is a center line ( On the basis of 110, different inclined surfaces are symmetrically oriented and at the same time facing the externally open surface.

Accordingly, when the light source 200 is turned on, the support area 120a and the reflection area 120b formed on the reflector 100 reflect the light generated from the light source 200 to illuminate the ground of a wider area.

On the other hand, such a light emitting diode lighting device can be used by replacing the existing streetlight device.

4 is a conceptual view schematically illustrating a light emitting diode lighting apparatus according to a second embodiment of the present invention, and FIG. 5 is a cross-sectional view of the light emitting diode lighting apparatus according to the second embodiment of the present invention.

As shown in FIGS. 4 to 5, the LED lighting apparatus according to the second embodiment of the present invention includes a plate 400 and a light emitting diode 500.

As shown in FIGS. 4 to 5, the plate 400 includes a support area 420a and a reflection area 420b which are each provided in a circular shape, and a plurality of light emitting diodes 500 are provided in the support area. The reflective area is arranged in a line shape, and the reflection area is adjacent to the support area to reflect a part of light emitted from the light emitting diode in a direction different from that of the light emitting diode when the light emitting diode disposed in the support area emits light. Are arranged.

The LED lighting of the present invention may have a structure in which the support area and the reflection area are abnormally provided. In this case, each of the support area and the reflection area is preferably configured to be symmetrical to each other. Such symmetry can be line or point symmetry. In FIG. 4, the support area and the reflection area have a line symmetry. Specifically, the sawtooth-shaped support region 420a and the reflective region 420b are formed based on the center at regular intervals based on the center point 410. Through this structure, the light emitted from the light emitting diode 500 is effectively reflected through the reflective region 420b.

The reflective plate 400 is made of aluminum (Al) or magnesium (Mg) material for the heat dissipation and light weight of the light emitted from the light source 500 to emit to the outside. In addition, the reflective plate 400 is further provided with heat dissipation by providing a plating layer (not shown) on the surface.

The light source 500 is arranged to face the center point 410 on the inner inclined surface 420a formed in the reflector 400 to emit light.

The light source 500 is a light emitting diode chip (not shown) is attached to the upper surface of the PCB substrate (not shown), and the upper surface is molded with an epoxy (not shown) to process the light emitting diode chip (not shown). Protect. In addition, the light emitting diode chip (not shown) is formed by electrically connecting the adjacent circuit patterns, that is, a pair of electrodes (not shown) in the PCB substrate (not shown) through wire bonding, and the PCB substrate ( Not shown) is formed of a material that effectively transfers the heat energy generated from the light emitting diode chip (not shown).

The LED chip (not shown) may use a red device (not shown), a green device (not shown), and a blue device (not shown) (hereinafter referred to as an RGB device) or a white device (not shown). However, the use of a white device (not shown) is not only expensive to manufacture, but also lowers the use efficiency of lower luminance than other red devices (not shown) and green devices (not shown). Therefore, it is preferable to use an RGB device (not shown) that can reduce the manufacturing cost and increase the brightness of the light emitting diode chip (not shown).

 6 and 5, the embodiment of the LED lighting apparatus according to the second embodiment of the present invention will be described in detail. 6 is a second embodiment of the LED lighting apparatus according to the second embodiment of the present invention.

The LED lighting apparatus according to the second embodiment of the present invention is mounted on a side street lamp, the lamp of which is coupled to the side.

The LED lighting device is coupled to the inner surface of the lampshade 610 of the circular street light 600, the reflector 400 is mounted on the inner surface serves to radiate heat and reflect light, the light source 500 is the center 410 ), Symmetrically faces different inclined planes and toward the ground at the same time.

Accordingly, when the light source 500 is turned on, the direction of the light source faces in all directions, and the support area 420a and the reflection area 420b formed in the reflection plate 400 reflect light generated from the light source 500. You will be able to inspect a large area of land.

On the other hand, such a light emitting diode lighting device can be used in place of the existing circular streetlight device.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the technical idea of the present invention. Do.

1 is a conceptual diagram schematically illustrating a light emitting diode according to a first embodiment of the present invention;

2 is a cross-sectional view of the LED lighting apparatus according to the first embodiment of the present invention,

3 is a first embodiment of the LED lighting apparatus according to the first embodiment of the present invention,

4 is a conceptual diagram schematically illustrating a light emitting diode according to a second embodiment of the present invention;

5 is a cross-sectional view of a LED lighting apparatus according to a second embodiment of the present invention;

6 is a second embodiment of the LED lighting apparatus according to the second embodiment of the present invention.

<Explanation of Signs of Major Parts of Drawings>

100: plate 110: center line

200: light emitting diode 300: plate

400: light emitting diode 410: center point

Claims (8)

One or more light emitting diode lines each consisting of a plurality of light emitting diodes arranged in a row; And A plate on which one or more support lines are formed so that each of the light emitting diode lines may be provided; Including The plate further includes an area capable of reflecting light generated from the light emitting diodes, and further comprising a heat dissipation structure for dissipating heat generated from the light emitting diodes. The method of claim 1, The plurality of light emitting diodes are two or more light emitting diode illumination device, characterized in that provided at different angles. The method of claim 1, When the light emitting diode line is provided with two or more, the cross-sectional angle of the two or more light emitting diode line is provided with a different angle from each other. The method of claim 1, The plate is formed in a step shape so that each light emitting diode line is disposed, the light emitting diode illumination device, characterized in that the cross section of the light emitting diode illumination device is provided in a sawtooth shape. The method of claim 1, In the plate, the light emitting diode lighting apparatus, characterized in that the surface provided with the light emitting diode line is coated with a reflective material. The method of claim 1, The light emitting diode line is characterized in that the light emitting diode illumination device. The method of claim 2 or 3, The at least two light emitting diode line is a light emitting diode illumination device, characterized in that provided to be symmetrical to each other. The method of claim 2 or 3, The LED lighting apparatus, characterized in that the irradiation direction of each of the two or more LED lines are provided to overlap each other.
KR1020090133438A 2009-12-29 2009-12-29 The lighting device using light emission diode KR20110076682A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130021288A (en) * 2011-08-22 2013-03-05 엘지이노텍 주식회사 Light emitting module and light emitting apparatus having thereof
KR101436210B1 (en) * 2011-09-26 2014-09-01 가부시키가이샤 고이토 세이사꾸쇼 Vehicular lamp
KR102042395B1 (en) * 2018-07-05 2019-11-07 박성원 Road surface traffic lights unit with directivity and road surface traffic lights using the same
CN110867455A (en) * 2018-08-28 2020-03-06 乐金显示有限公司 Display device
CN110867455B (en) * 2018-08-28 2024-05-31 乐金显示有限公司 Display device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130021288A (en) * 2011-08-22 2013-03-05 엘지이노텍 주식회사 Light emitting module and light emitting apparatus having thereof
KR101436210B1 (en) * 2011-09-26 2014-09-01 가부시키가이샤 고이토 세이사꾸쇼 Vehicular lamp
KR102042395B1 (en) * 2018-07-05 2019-11-07 박성원 Road surface traffic lights unit with directivity and road surface traffic lights using the same
CN110867455A (en) * 2018-08-28 2020-03-06 乐金显示有限公司 Display device
CN110867455B (en) * 2018-08-28 2024-05-31 乐金显示有限公司 Display device

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