KR102014174B1 - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- KR102014174B1 KR102014174B1 KR1020130039836A KR20130039836A KR102014174B1 KR 102014174 B1 KR102014174 B1 KR 102014174B1 KR 1020130039836 A KR1020130039836 A KR 1020130039836A KR 20130039836 A KR20130039836 A KR 20130039836A KR 102014174 B1 KR102014174 B1 KR 102014174B1
- Authority
- KR
- South Korea
- Prior art keywords
- heat dissipation
- light
- cover
- substrate
- disposed
- Prior art date
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
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
-
- 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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/235—Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps
-
- 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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
-
- 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
- F21K9/69—Details of refractors forming part of the light source
-
- 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
- F21V17/104—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 using feather joints, e.g. tongues and grooves, with or without friction
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Embodiments relate to a lighting device.
A lighting device according to an embodiment includes a heat sink including an upper surface and an outer circumferential portion surrounding the upper surface; A light source module including a substrate disposed on the upper surface and a portion of the outer circumferential portion and a light emitting element disposed on the substrate; And a hemispherical cover disposed on the light source module, wherein the cover includes a first cover part disposed on the substrate and a second cover part connected to an outer circumference of the first cover part. The light reflectance of the cover part is greater than the light reflectance of the second cover part, and the first cover part and the second cover part include an optical part that reflects at least a part of the light from the light emitting element outside the upper surface of the substrate. In addition, the outer peripheral portion transmits at least a part of the incident light. According to the lighting apparatus according to this embodiment, the optical performance can be improved, specifically, the post-light distribution performance can be improved, and the light distribution angle can be further widened.
Description
Embodiments relate to a lighting device.
Light emitting diodes (LEDs) are a type of semiconductor device that converts electrical energy into light. Light emitting diodes have the advantages of low power consumption, semi-permanent life, fast response speed, safety and environmental friendliness compared to conventional light sources such as fluorescent and incandescent lamps. Accordingly, many researches are being conducted to replace conventional light sources with light emitting diodes, and the use of light emitting diodes is increasing as a light source for lighting devices such as various lamps, liquid crystal displays, electronic displays, and street lamps that are used indoors and outdoors. .
Embodiments provide an illumination device capable of improving optical performance.
In addition, it provides an illumination device that can improve post-light distribution performance.
In addition, there is provided an illumination device that can further widen the light distribution angle.
An illumination device according to an embodiment includes a light source module including a substrate and a light emitting element disposed on the substrate; And a hemispherical cover disposed on the light source module, wherein the cover includes a first cover part disposed on the substrate and a second cover part connected to an outer circumference of the first cover part. The light reflectance of the cover part is greater than the light reflectance of the second cover part, and the first cover part and the second cover part include an optical part that reflects at least a part of the light from the light emitting element outside the upper surface of the substrate. According to the lighting apparatus according to this embodiment, the optical performance can be improved, specifically, the post-light distribution performance can be improved, and the light distribution angle can be further widened.
A lighting device according to an embodiment includes a heat sink including an upper surface and an outer circumferential portion surrounding the upper surface; A light source module including a substrate disposed on the upper surface and a portion of the outer circumferential portion and a light emitting element disposed on the substrate; And a cover coupled to the outer circumferential portion and disposed on the light source module, wherein the cover includes a lower end coupled to the outer circumferential portion and an upper end portion disposed on the lower end and having a light diffusion rate higher than that of the lower end. Wherein the upper end and the lower end include an optical part that reflects a part of the light from the light emitting element to the outer peripheral part, and the outer peripheral part transmits at least a part of the incident light. According to the lighting apparatus according to this embodiment, the optical performance can be improved, specifically, the post-light distribution performance can be improved, and the light distribution angle can be further widened.
By using the lighting apparatus which concerns on embodiment, optical performance can be improved.
In addition, there is an advantage that can improve post-light distribution performance.
In addition, there is an advantage that can widen the light distribution angle.
1 is a perspective view from above of a lighting device according to an embodiment;
2 is a perspective view from below of the lighting device shown in FIG. 1;
3 is an exploded perspective view of the lighting apparatus shown in FIG.
4 is an exploded perspective view of the lighting apparatus shown in FIG. 2;
FIG. 5 is a sectional perspective view of the lighting apparatus shown in FIG. 1. FIG.
6 and 7 are perspective views illustrating a state in which the
FIG. 8 is a conceptual diagram illustrating an electrical connection between the
9 is a view for explaining the coupling structure of the
10 to 11 are views for explaining the coupling structure of the
In the drawings, the thickness or size of each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. In addition, the size of each component does not necessarily reflect the actual size.
In the description of the embodiment according to the present invention, when one element is described as being formed on the "on or under" of another element, it is either above or below. (On or under) includes both two elements are directly in contact with each other (directly) or one or more other elements are formed indirectly between the two elements (indirectly). In addition, when expressed as 'on or under', it may include the meaning of the downward direction as well as the upward direction based on one element.
Hereinafter, a lighting apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
1 is a perspective view from above of a lighting device according to an embodiment, FIG. 2 is a perspective view from below of a lighting device shown in FIG. 1, FIG. 3 is an exploded perspective view of the lighting device shown in FIG. 1, and FIG. 2 is an exploded perspective view of the lighting apparatus illustrated in FIG. 2, and FIG. 5 is a cross-sectional perspective view of the lighting apparatus illustrated in FIG. 1.
1 to 5, the lighting apparatus according to the embodiment may include a
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The diameter of the
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The material of the
The light diffusion rate of the
In addition, when the light diffusion rate of the
The light reflectance of the
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The shape of the
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The shape of the
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6 and 7 are perspective views illustrating a state in which the
3 to 8, the
Here, as shown in FIG. 8, the height D1 or the
The shape of the first hole H1 may correspond to the shape of the
Again, referring to FIGS. 3 to 5, the
The plurality of light emitting
The
The
A lens (not shown) may be disposed on the
When the
Natural light (white light) may be realized by including only the yellow phosphor in the light-transmissive resin, but may further include a green phosphor or a red phosphor in order to improve the color rendering index and reduce the color temperature.
When various kinds of phosphors are mixed in the light-transmissive resin, the addition ratio according to the color of the phosphor may use more green phosphors than red phosphors and more yellow phosphors than green phosphors. Yellow phosphors include garnet-based YAG, silicate and oxynitrides, green phosphors use silicate and oxynitrides, and red phosphors use nitrides. have. In addition to mixing various kinds of phosphors in the light-transmissive resin, a layer having a red phosphor, a layer having a green phosphor, and a layer having a yellow phosphor may be separately divided.
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The material of the first
In addition, the first
In addition, the first thermal conductivity W / (mk) or W / m ° C. of the material constituting the first
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The first
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The shape of the
The shape of the
A third hole H3 through which the
A fourth hole H4 may be formed in the
The
Between the top 311 and the
The
The
The
The
A pin or embossing structure (not shown) may be disposed on at least one of an outer surface or an inner surface of the
The upper 311 and the lower 313 may be integral. In the present specification, the
The second
The first
The second
The second
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9 is a view for explaining a coupling structure of the
9, the
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When the protruding
1 to 5, the first
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In order to integrally form the first
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10 to 11 are views for explaining the coupling structure of the
10 to 11, the first and
The intervals W1 and W2 between the
At the entrance of the
On the bottom surface of the
A
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The plurality of
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Although the above description has been made mainly on the embodiments, these are merely examples and are not intended to limit the present invention, and those of ordinary skill in the art to which the present invention pertains should not be exemplified above unless they depart from the essential characteristics of the present embodiments. It will be appreciated that many variations and applications are possible. For example, each component specifically shown in embodiment can be modified and implemented. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.
100: cover
200: light source module
300: radiator
400: power supply unit
500: socket
Claims (10)
A light source module including a substrate disposed on the upper surface and a portion of the outer circumferential portion and a light emitting element disposed on the substrate; And
And a hemispherical cover disposed on the light source module.
The cover includes a first cover part disposed on the substrate and a second cover part connected to an outer circumference of the first cover part.
The light reflectance of the first cover part is greater than the light reflectance of the second cover part,
The first cover part includes an optical part that reflects at least a portion of the light from the light emitting element outside the upper surface of the substrate,
The outer periphery is a lighting device that transmits at least a portion of the incident light.
And the second cover portion further comprises an optical portion for reflecting at least a portion of light from the light emitting element out of an upper surface of the substrate.
The light diffusing rate of the first cover part is greater than the light diffusing rate of the second cover part.
A light source module including a substrate disposed on the upper surface and a portion of the outer circumferential portion and a light emitting element disposed on the substrate; And
And a cover coupled to the outer circumference and disposed on the light source module.
The cover includes a lower end coupled to the outer circumferential part, and an upper end disposed on the lower end and having a light diffusivity higher than that of the lower end.
At least one or more of the upper end portion and the lower end portion includes an optical portion for reflecting a part of the light from the light emitting element to the outer peripheral portion,
The outer periphery is a lighting device that transmits at least a portion of the incident light.
A first heat dissipation part including an upper part including the upper surface and a lower part connected to the upper part and having an accommodating part; And
And a second heat dissipation part including an inner part disposed in the accommodating part of the first heat dissipation part and an outer part surrounding the first heat dissipation part and having the outer circumferential part.
The second heat dissipation unit has a predetermined light transmittance,
And the first heat dissipation unit and the second heat dissipation unit are integrated.
Further comprising a power supply for providing power to the light source module,
The first heat dissipation part is a non-insulating material, and the second heat dissipation part is an insulating material,
And the second heat dissipation part includes an accommodating part accommodating the power supply part.
The power supply unit includes a support substrate and a plurality of parts disposed on the support substrate,
The support substrate may include an extension part which penetrates the inner part of the second heat dissipation part, the upper part of the first heat dissipation part, and the substrate, and is electrically connected to the substrate.
The power supply unit includes a support substrate and a plurality of parts disposed on the support substrate,
The second heat dissipation part further includes a connection part for coupling with the socket,
The connection portion has at least one hole,
The support substrate has a projection of the hook structure is inserted into the hole of the connecting portion.
The power supply unit includes a support substrate and a plurality of parts disposed on the support substrate,
The accommodating part of the second heat dissipation part includes a first guide part and a second guide part for guiding one side of the support substrate from both sides,
The interval between the first guide portion and the second guide portion is narrowed toward the bottom surface of the accommodating portion of the second heat dissipation portion from the inlet of the accommodating portion of the second heat dissipation portion.
And the optical portion is shaped like a prism.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130039836A KR102014174B1 (en) | 2013-04-11 | 2013-04-11 | Lighting device |
US14/223,629 US20140307427A1 (en) | 2013-04-11 | 2014-03-24 | Lighting device |
EP16162680.9A EP3064824B1 (en) | 2013-04-11 | 2014-03-27 | Lighting device |
EP14162130.0A EP2789893B1 (en) | 2013-04-11 | 2014-03-27 | Lighting device |
JP2014076274A JP6300607B2 (en) | 2013-04-11 | 2014-04-02 | Lighting device |
CN201410145433.6A CN104100862B (en) | 2013-04-11 | 2014-04-11 | Lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130039836A KR102014174B1 (en) | 2013-04-11 | 2013-04-11 | Lighting device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20140122864A KR20140122864A (en) | 2014-10-21 |
KR102014174B1 true KR102014174B1 (en) | 2019-08-26 |
Family
ID=51993794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130039836A KR102014174B1 (en) | 2013-04-11 | 2013-04-11 | Lighting device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR102014174B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120140491A1 (en) | 2010-12-01 | 2012-06-07 | Foxsemicon Integrated Technology, Inc. | Led lamp |
DE202012009071U1 (en) | 2012-09-21 | 2012-11-08 | Carsten Schmidt | LED light with improved reflection behavior |
-
2013
- 2013-04-11 KR KR1020130039836A patent/KR102014174B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120140491A1 (en) | 2010-12-01 | 2012-06-07 | Foxsemicon Integrated Technology, Inc. | Led lamp |
DE202012009071U1 (en) | 2012-09-21 | 2012-11-08 | Carsten Schmidt | LED light with improved reflection behavior |
Also Published As
Publication number | Publication date |
---|---|
KR20140122864A (en) | 2014-10-21 |
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