KR20160049318A - Surface lighting apparatus using led - Google Patents
Surface lighting apparatus using led Download PDFInfo
- Publication number
- KR20160049318A KR20160049318A KR1020140146282A KR20140146282A KR20160049318A KR 20160049318 A KR20160049318 A KR 20160049318A KR 1020140146282 A KR1020140146282 A KR 1020140146282A KR 20140146282 A KR20140146282 A KR 20140146282A KR 20160049318 A KR20160049318 A KR 20160049318A
- Authority
- KR
- South Korea
- Prior art keywords
- led
- mounting portion
- base surface
- reflection
- angle
- Prior art date
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Classifications
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21V7/041—Optical design with conical or pyramidal surface
-
- 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
- F21V7/05—Optical design plane
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
BACKGROUND OF THE
In general, in indoor lighting, fluorescent lamps are used to directly or indirectly illuminate a room. However, in recent years, an LED having a low power consumption and a high luminance has been developed, so that an indoor lighting device using a light emitting diode The use is gradually increasing.
The LED has a problem that the area of the light emitting portion is much smaller than other light sources including the fluorescent lamp, and the point light source emits a large amount of light in a small portion.
It is preferable that the indoor illumination device using LEDs is illuminated by a surface emitting illumination device using a light guide plate and a diffusion plate because it is not suitable for use as an indoor illumination due to high eye fatigue when an LED as a light source is exposed.
1, the
That is, the
However, the surface-emitting LED illumination device has been developed as a backlight unit for displaying various color information and contrast on a screen by illuminating light with a liquid crystal panel of a liquid crystal display device.
Since the back light unit is required to reflect light evenly to the edge of the liquid crystal panel, light emitting means is provided at the edge of the
In addition, the surface-emitting LED illumination device has a problem in that efficiency of illumination and uniformity is low due to surface emission through the light-
In addition, there is a problem that the light emitting region is wide and the luminance is high, and the frequency of reflection of the light is high in the offending zone.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a surface-emitting LED lighting device which improves the illuminance and uniformity of light emitted by an LED and emits light of a maximum vertical LED in a vertical direction to suppress glare when used in a room.
The above and other objects can be accomplished by the provision of a base body member having a base surface and provided with a first LED mounting portion and a second LED mounting portion protruding from the base surface on at least both sides thereof,
A first LED module mounted on the first LED mounting portion so as to be inclined toward the base surface;
A second LED module mounted on the second LED mounting portion so as to be inclined toward the base surface;
A first reflecting member provided on the base surface and having a first reflecting surface inclined with respect to the base surface and reflecting the light emitted from the first LED module;
A second reflective member provided on the base surface, the second reflective member having a second reflective surface inclined with respect to the base surface and reflecting light emitted from the second LED module; And
And a diffusing plate member mounted to be spaced apart from the first reflecting portion and the second reflecting portion.
In the present invention, the first reflection surface has an inclined surface that gradually increases in height from the first LED mounting portion side to the center portion of the base surface, and the second reflection surface is located on the side of the second LED mounting portion to the center of the base surface Wherein the first LED module and the second LED module are inclined toward the first reflection surface and the second reflection surface.
In the present invention, the first reflection surface is inclined with a first reflection angle with respect to a first reference plane, and the first LED module has a first LED angle with respect to a second reference plane perpendicular to the first reference plane And the second reflective surface is inclined with a second reflective angle with respect to a second reference plane of the plane, and the second LED module is inclined with respect to a second reference plane perpendicular to the second reference plane, Lt; / RTI >
In the present invention, the first reflection angle and the first LED angle have the same angle, and the second reflection angle and the second LED angle have the same angle.
In the present invention, the first reflection angle, the second reflection angle, the first LED angle, and the second LED angle are 10 ° to 20 °, respectively.
In the present invention, the base body member may further include another LED mounting portion on which the first LED mounting portion and the second LED mounting portion are inclinedly mounted to form a polygonal mounting portion, and the other LED mounting portion Further comprising another reflecting member having a tilted reflecting surface for reflecting the light emitted from the other LED module mounted on the first reflecting surface and the second reflecting surface, The slope is divided by a line connecting the both end portions of the respective LED mounting portions at the center of the base surface.
The first LED mounting portion may include a first vertical cover portion provided on the base surface and a first horizontal cover portion projecting inwardly from an upper end of the first vertical cover portion and disposed laterally, The mounting portion includes a second vertical cover portion provided on the base surface and a second horizontal cover portion protruding inward from an upper end of the second vertical cover portion and disposed laterally.
The present invention reflects light emitted from the LED and uniformly reflects light to the front surface of the diffuser plate, thereby improving the illumination efficiency by improving uniformity of light intensity and lightness without using a light guide plate.
In addition, since the present invention illuminates the LED light by emitting the light as far as possible from the direction in which the light is emitted, it is possible to prevent the glare and efficiently use the light in the room lighting or the like, thereby widening the utilization of the LED illumination and improving the merchantability of the LED illumination will be.
1 is a perspective view showing a conventional surface light emitting LED illumination device.
2 is a cross-sectional view illustrating a surface-emitting LED illumination device according to the present invention.
Fig. 3 is an enlarged view of a portion A in Fig. 2
Fig. 4 is an enlarged view of a part B in Fig. 2
5 is a perspective view showing another embodiment of the surface-emitting LED lighting device according to the present invention.
The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.
2 to 4, the surface-emitting LED illumination apparatus according to the present invention includes a
The
That is, the first LED mounting portion and the second
The first LED mounting portion includes a first
The second
The
Although not shown, the LED package includes a package substrate, an LED mounted on the package substrate, a hollow portion accommodating the LED, and a package reflector for reflecting the light emitted from the received LED .
The
The
The LED package may be arranged in a single row or a plurality of rows spaced along the longitudinal direction of the main board.
That is, the
The
The first reflecting
The first reflecting
The
More specifically, the
The
The first reference surface C and the second reference surface E coincide with the
The first reference plane C is a virtual reference plane for clarifying the inclined angle of inclination of the
The first reflection angle alpha 1 and the first LED angle beta 1 have the same angle with respect to a first reference plane C and a plane perpendicular to the first reference plane C, The second reflection angle α 2 and the second LED angle β 2 have the same angle with respect to the second reference plane E and the reference plane F perpendicular to the second reference plane E, .
The inclination angle of the first reflecting
The angle of inclination of the second reflecting
This is because the light emitted from the
The first reflecting
The vertical direction means that the vertical direction is reflected in the vertical direction with respect to the direction of light emitted from the
The first
It is preferable that the first reflection angle alpha 1 , the second reflection angle alpha 2 , the first LED angle beta 1 and the second LED angle beta 2 be 10 ° to 20 °, respectively . When the first reflection angle alpha 1 , the second reflection angle alpha 2 , the first LED angle beta 1 and the second LED angle beta 2 are less than 10 degrees, diffusion occurs due to the straightness of the LED. The brightness of light emitted through the
When the first reflection angle α 1 , the second reflection angle α 2 , the first LED angle β 1 and the second LED angle β 2 are more than 20 °, the diffusing
A
The diffusing
That is, the light emitted from the
The
As the light transmitting sheet, a frosted glass, an acrylic sheet, or a scattered film may be used.
The diffusing
5, the
In this case, the
Further comprising another reflecting member for reflecting light emitted from another LED module mounted on the other LED mounting portion, and the other reflecting member has respective reflecting surfaces inclined to reflect light emitted from the other LED module.
Each of the reflection surfaces provided on the other reflection member and the other reflection member is inclined to be equal to the slope of the other LED module. The slope of the inclination is different from the inclination of the
The first reflecting
5, the first
In this case, the
The
The third reflecting
The first reflecting
The second reflecting
The first reflecting
The present invention reflects the light emitted from the LED with the reflection plate and then reflects the light uniformly to the front surface of the
In addition, since the present invention illuminates the LED light by directly emitting the light in the emitting direction, it can prevent glare and efficiently use it in an indoor lighting and the like, thereby widening the utilization of the LED illumination and improving the merchantability of the LED illumination.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.
10: base body member 11: first LED mounting part
11a: first
12: second
12b: second horizontal cover part 13: third LED mounting part
14: fourth
20: first LED module 30: second LED module
40: first reflecting member 41: first reflecting surface
50: second reflecting member 51: second reflecting surface
60: diffuser plate member 70: third LED module
80: third reflecting member 81: third reflecting surface
90: fourth reflection member 91: fourth reflection surface
Claims (7)
A first LED module mounted on the first LED mounting portion so as to be inclined toward the base surface;
A second LED module mounted on the second LED mounting portion so as to be inclined toward the base surface;
A first reflecting member provided on the base surface and having a first reflecting surface inclined with respect to the base surface and reflecting the light emitted from the first LED module;
A second reflective member provided on the base surface, the second reflective member having a second reflective surface inclined with respect to the base surface and reflecting light emitted from the second LED module; And
And a diffusing plate member mounted to the first reflecting portion and the second reflecting portion so as to be spaced apart from each other.
Wherein the first reflection surface has an inclined surface that gradually increases in height from the first LED mounting portion side toward the central portion of the base surface,
The second reflection surface has an inclined surface that gradually increases in height from the second LED mounting portion side to the central portion of the base surface,
Wherein the first LED module and the second LED module are inclined toward the first reflection surface and the second reflection surface.
Wherein the first reflection surface has a first reflection angle with respect to a first reference plane,
Wherein the first LED module is tilted with a first LED angle with reference to a second reference plane perpendicular to the first reference plane,
Wherein the second reflective surface is inclined with a second reflective angle with respect to a second reference plane of the plane and the second LED module is inclined with a second LED angle with respect to a second reference plane perpendicular to the second reference plane And a light emitting diode (LED).
Wherein the first reflection angle and the first LED angle have the same angle, and the second reflection angle and the second LED angle have the same angle.
Wherein the first reflection angle, the second reflection angle, the first LED angle, and the second LED angle are 10 ° to 20 °, respectively.
The base body member may further include another LED mounting portion on which an LED module other than the first LED mounting portion and the second LED mounting portion is inclinedly mounted on the base surface to form a polygonal mounting portion,
Further comprising another reflective member having a tilted reflective surface for reflecting light emitted from another LED module mounted on the other LED mounting portion,
Wherein each of the reflection surfaces of the first reflection surface, the second reflection surface, and the other reflection member is divided by a line connecting the opposite ends of the respective LED mounting portions at the center of the base surface. Illuminated LED illumination device.
The first LED mounting portion includes a first vertical cover portion provided on the base surface and a first horizontal cover portion protruding inward from an upper end of the first vertical cover portion and disposed laterally,
Wherein the second LED mounting portion includes a second vertical cover portion provided on the base surface and a second horizontal cover portion protruding inward from an upper end of the second vertical cover portion and disposed laterally, .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140146282A KR20160049318A (en) | 2014-10-27 | 2014-10-27 | Surface lighting apparatus using led |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140146282A KR20160049318A (en) | 2014-10-27 | 2014-10-27 | Surface lighting apparatus using led |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20160049318A true KR20160049318A (en) | 2016-05-09 |
Family
ID=56020360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140146282A KR20160049318A (en) | 2014-10-27 | 2014-10-27 | Surface lighting apparatus using led |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20160049318A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114635864A (en) * | 2020-12-16 | 2022-06-17 | 技嘉科技股份有限公司 | Fan assembly |
CN114688053A (en) * | 2020-12-30 | 2022-07-01 | 技嘉科技股份有限公司 | Luminous fan assembly |
-
2014
- 2014-10-27 KR KR1020140146282A patent/KR20160049318A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114635864A (en) * | 2020-12-16 | 2022-06-17 | 技嘉科技股份有限公司 | Fan assembly |
CN114635864B (en) * | 2020-12-16 | 2024-03-08 | 技嘉科技股份有限公司 | Fan assembly |
CN114688053A (en) * | 2020-12-30 | 2022-07-01 | 技嘉科技股份有限公司 | Luminous fan assembly |
CN114688053B (en) * | 2020-12-30 | 2024-03-08 | 技嘉科技股份有限公司 | Luminous fan assembly |
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