WO2017191941A1 - 조명 장치 - Google Patents

조명 장치 Download PDF

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Publication number
WO2017191941A1
WO2017191941A1 PCT/KR2017/004543 KR2017004543W WO2017191941A1 WO 2017191941 A1 WO2017191941 A1 WO 2017191941A1 KR 2017004543 W KR2017004543 W KR 2017004543W WO 2017191941 A1 WO2017191941 A1 WO 2017191941A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
circuit board
disposed
cover
diffusion member
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/004543
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
임창혁
김성도
제부관
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Innotek Co Ltd
Original Assignee
LG Innotek Co Ltd
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 LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Priority to JP2018557116A priority Critical patent/JP6956112B2/ja
Priority to US16/098,197 priority patent/US10578273B2/en
Publication of WO2017191941A1 publication Critical patent/WO2017191941A1/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F21K9/60—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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like 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
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/20—Light sources with three-dimensionally disposed light-generating elements on convex supports or substrates, e.g. on the outer surface of spheres
    • 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]

Definitions

  • Embodiments of the present invention relate to a lighting device.
  • LEDs Light emitting diodes
  • LEDs are a type of semiconductor device that converts electrical energy into light.
  • Light emitting diodes have 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, a lot of research is being conducted to replace the existing light source with a light emitting diode.
  • a lighting apparatus using a light emitting diode as a light source includes a light source member including a printed circuit board (PCB) on which a light emitting diode is mounted.
  • PCB printed circuit board
  • the lighting apparatus has a high luminance in a region facing the light emitting diode, and thus it is difficult to improve the luminance uniformity.
  • the present invention has been made in an effort to provide an illumination device with improved luminance uniformity.
  • Illumination apparatus of an embodiment of the present invention comprises a first body having an inner peripheral surface and an outer peripheral surface; A diffusion member disposed on the first body; A cover disposed on the first body to cover the diffusion member; A second body disposed between the diffusion member and the cover, the second body including a lower surface and a side surface surrounding the lower surface; And a first circuit board disposed on a lower surface of the second body, a second circuit board surrounding a side surface of the second body, and at least one first mounted on the first circuit board to face the diffusion member. And a light source member including a light source and at least one second light source mounted on the second circuit board to face an inner surface of the cover.
  • a lighting apparatus in another embodiment, includes a first body having an inner circumferential surface and an outer circumferential surface; A diffusion member disposed on the first body; A cover disposed on the first body to cover the diffusion member; A convex second body disposed between the diffusion member and the cover and protruding toward the diffusion member; And a light source member including a circuit board disposed outside the second body and at least one light source mounted on the circuit board.
  • the lighting apparatus includes a first circuit board including at least one first light source mounted toward the light emission direction of the diffusion member, and a second circuit including at least one second light source mounted toward the edge of the cover. And a light source member comprising a substrate. Therefore, the brightness uniformity of the lighting apparatus can be improved, and the quality of the lighting apparatus can be improved.
  • FIG. 1 is a bottom perspective view of the lighting apparatus of the present invention.
  • FIG. 2A is an exploded perspective view of FIG. 1 according to an exemplary embodiment of the present invention.
  • FIG. 2B is an enlarged perspective view of the second body and the light source member of FIG. 2A fastened.
  • 3A is a cross-sectional view taken along line II ′ of FIG. 1 according to an exemplary embodiment of the present invention.
  • 3B is a cross-sectional view illustrating the light emission of FIG. 3A.
  • FIG. 4A is a perspective view of a second body in another embodiment of the present invention.
  • FIG. 4B is a cross-sectional view taken along the line II ′ of FIG. 4A with the light source member fastened.
  • 4C is a cross-sectional view in which the second body to which the light source member is fastened is disposed in the cover.
  • Figure 5a is a perspective view of a second body of another embodiment of the present invention.
  • FIG. 5B is a cross-sectional view taken along the line II ′ of FIG. 5A with the light source member fastened.
  • 5C is a cross-sectional view in which a second body to which the light source member is fastened is disposed in the cover.
  • first and second may be used to describe various components, but the components are not limited by the terms. The terms are used to distinguish one component from another component.
  • the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.
  • FIG. 1 is a bottom perspective view of the lighting apparatus of the present invention
  • Figure 2a is an exploded perspective view of Figure 1 according to an embodiment of the present invention
  • 2B is an enlarged perspective view in which the second body and the light source member of FIG. 2A are fastened
  • 3A is a cross-sectional view taken along line II ′ of FIG. 1 according to an exemplary embodiment of the present invention.
  • the lighting apparatus 1000 has a first body 100 having an inner circumferential surface and an outer circumferential surface, and a diffusion member 110 disposed on the first body 100. ), A cover 140 disposed on the first body 100 to cover the diffusion member 110, and a side surface disposed between the diffusion member 110 and the cover 140 and surrounding the lower surface and the lower surface.
  • a first circuit board 130a disposed on the second body 120 and the lower surface of the second body 120 and including at least one first light source 135a mounted to face the diffusion member 110;
  • the second circuit board 130b surrounding the outer surface of the second body 120 and including at least one second light source 135b mounted on the second circuit board 130b to face the inner surface of the cover 140. It includes a light source member 130, including.
  • the first body 100 may have a ring shape having a first inner circumferential surface and a first outer circumferential surface.
  • the first body may include an opening h, and the opening h may be located at the center of the first body.
  • the first body 100 may be a plastic material and may be formed through an injection method.
  • the first body 100 may include polycarbonate (PC). If the first body 100 is made of plastic, the weight is lighter than that of the case where the first body 100 is made of metal, and manufacturing cost can be reduced.
  • the material of the first body 100 is not limited thereto.
  • the diffusion member 110 may be exposed through the opening h of the first body 100.
  • the diffusion member 110 may have an exposed area equal to the area of the opening h of the first body 100.
  • the diffusion member 110 may be formed in a plate shape.
  • the diffusion member 110 may be coupled to the first inner circumferential surface of the first body 100. For example, an edge of the diffusion member 110 may be seated on the first body 100. Accordingly, the light generated by the light source member 130 may be diffused through the diffusion member 110 exposed to the lower portion of the first body 100 to be emitted to the outside.
  • the cover 140 may have a dome shape in which the inside is concave.
  • the first hole 140a may be formed on the upper surface of the cover 140.
  • external power may be supplied to the light source member 130 through the first hole 140a.
  • the edge of the cover 140 may be fastened to the first body 100.
  • the edge of the cover 140 and the first body 100 may be fastened through a fastening member such as a screw, or may be bonded through an adhesive member, but is not limited thereto.
  • the cover 140 may include a material having high reflectance to reflect the light emitted from the light source member 130 to the diffusion member 110.
  • the cover 140 may include white silicone, such as phenyl silicone and methyl silicone, and reflect particles to the white silicone to improve reflectance. May be a more included structure.
  • the cover 140 may be glass in which TiO 2 is dispersed, but is not limited thereto.
  • the cover 140 may diffuse reflection of light emitted from the light source member 130 from the inner side, and the light incident on the cover 140 may be directed toward the diffusion member 110. lambertian).
  • the cover 140 may be formed of a material such as glass, plastic, polypropylene (PP), polyethylene (PE), polycarbonate (PC), or the like.
  • the inner surface of the cover 140 may further be applied in the form of a coating, coating, printing or film is a material that reflects light, such as silver (Ag), aluminum (Al).
  • the cover 140 may include various materials, without being limited thereto.
  • the second body 120 may be fixed inside the cover 140 to be disposed between the cover 140 and the diffusion member 110.
  • the second body 120 may be made of the same material as the first body 100, but the second body 120 may have thermal conductivity such as aluminum (Al), copper (Cu), silver (Ag), gold (Au), or the like. It may be formed of this excellent material or the like to function as a heat sink.
  • the second body 120 may include a lower surface and a side surface surrounding the lower surface.
  • the lower surface of the second body 120 is circular, and the second body 120 is cylindrical, and the shape of the lower surface of the second body 120 can be easily changed.
  • the lower surface of the second body 120 may face the diffusion member 110.
  • the outer surface of the second body 120 may face the inner surface of the cover 140.
  • the upper surface of the second body 120 may be open.
  • the upper surface of the second body 120 may have a structure in which an area overlapping with the first hole 140a of the cover 140 is opened, or the front surface of the upper surface is opened as shown.
  • the power supply member 105 may be accommodated in the second body 120.
  • the power supply member 105 may be connected to a power line installed in the ceiling through a socket (not shown).
  • the overall thickness of the lighting device 1000 is reduced. Can be. This makes it possible to miniaturize the lighting device.
  • the power supply member 105 includes a DC converter for converting AC power provided from an external power source into DC power, a driving chip for controlling driving of the light source member 130, and an ESD (ElectroStatic discharge) to protect the light source member 130. ) Protection elements and the like, but is not limited thereto.
  • the second body 120 is provided. It may include a second hole (120a) penetrating the lower surface of the second body 120.
  • the first and second circuit boards 130a and 130b of the light source member 130 are double-sided circuit boards, the upper surface of the first circuit board 130a may be exposed by the second hole 120a.
  • the first circuit board 130a may be electrically connected to the power supply member 105 through the second hole 120a.
  • the first circuit board 130a and the power supply member 105 may be electrically connected using a conductive member such as a wire (not shown), and the conductive member is not limited thereto.
  • first circuit board 130a when the first circuit board 130a is a single-sided circuit board, a third hole (not shown) penetrating the first circuit board 130a may also be formed in the first circuit board 130a. In this case, the first circuit board 130a and the power supply member 105 may be electrically connected through the second hole 120a and the third hole (not shown).
  • the second circuit board 130b may be electrically connected to the first circuit board 130a through a conductive member 200 such as a wire to receive power, but is not limited thereto.
  • a conductive member 200 such as a wire to receive power, but is not limited thereto.
  • the first light source 135a and the second light source 135b may be driven at the same time.
  • a hole (not shown) penetrating the second body 120 may also be formed at a side surface of the second body 120 so that the second circuit board 130b and the power supply member 105 may be directly connected to each other. .
  • the first and second circuit boards 130a and 130b are mounted on the first and second circuit boards 130a and 130b.
  • the second light sources 135a and 135b may be individually driven.
  • the first circuit board 130a and the second circuit board 130b are made of polyethylene terephthalate (PET), glass, polycarbonate (PC), silicon (Si), and the like.
  • the printed circuit boards (PCBs) on which the 135A and 135B are mounted may be mounted.
  • the first circuit board 130a and the second circuit board 130b may be formed in a film form or may be selected from a single layer PCB, a multilayer PCB, a ceramic substrate, a metal core PCB, and the like.
  • the first circuit board 130a may have a plate shape
  • the second circuit board 130b may have a ring shape surrounding the outer surface of the second body 120. That is, the first circuit board 130a may be in close contact with the lower surface of the second body 120, and the second circuit board 130b may be in close contact with the outer surface of the second circuit board 130b. Therefore, the second circuit board 130b may be a flexible circuit board so that the adhesion between the second circuit board 130b and the second body 120 is improved. For example, the second circuit board 130b may be bent to surround the outer surface of the second body 120.
  • At least one light source may be mounted on the first and second circuit boards 130a and 130b.
  • the first light source 135a mounted on the first circuit board 130a and the second light source 135b mounted on the second circuit board 130b may be light emitting diode chips.
  • the light emitting diode chip may be composed of a blue LED chip or an ultraviolet LED chip or a package in which at least one or more of a red LED chip, a green LED chip, a blue LED chip, a yellow green LED chip, and a white LED chip is combined. It may be configured as.
  • 3B is a cross-sectional view illustrating the light emission of FIG. 3A.
  • the first circuit board 130a may be disposed to face the diffusion member 110.
  • the first circuit board 130a may be located on the bottom surface of the second body 120.
  • the circuit board 130a includes at least one first light source 135a facing the diffusion member 110.
  • the second circuit board 130b may be disposed to face the inner surface of the cover 140.
  • the second circuit board 130b may be located on the side of the second body 120.
  • the second circuit board 130b includes at least one second light source 135b facing the inner surface of the cover 140. That is, a part of the light emitted from the second light source 135b may be reflected at least once on the inner surface of the cover 140 to travel to the diffusion member 110.
  • the diffusion member 110 of the lighting apparatus 1000 may emit light emitted from the first emission region A and the second light source 135b to which light emitted from the first light source 135a is directly incident. It may include a second light emitting region (B) incident to the diffusion member 110.
  • a general lighting device may be driven in a direct manner in which the light sources are mounted facing the diffusing member or in an edge manner arranged so that the light sources face each other in the cover.
  • the direct type method the difference in luminance of the area facing the light source and the area not facing the light source is large.
  • the edge type since the light source is disposed only at the periphery of the lighting apparatus, the luminance of the central portion of the lighting apparatus is low. Moreover, it is difficult to connect the power supply member disposed in the central portion of the lighting device with the light source member disposed in the peripheral portion of the lighting device.
  • the light source member 130 is disposed to surround the lower surface and the outer surface of the second body 120, and the power supply member 105 is disposed inside the second body 120. Since it is arranged, the light source member 130 and the power supply member 105 can be easily connected. In addition, since the first light source 135a functions as a direct type light source and the second light source 135b functions as an edge type light source, luminance uniformity of the lighting apparatus may be improved.
  • FIG. 4A is a perspective view of a second body according to another embodiment of the present invention
  • FIG. 4B is a cross-sectional view taken along line II ′ of FIG. 4A to which a light source member is fastened
  • 4C is a cross-sectional view in which the second body to which the light source member is fastened is disposed in the cover.
  • the second body 220 has a lower surface 220a including at least one second hole 221, a ring-shaped side surface 220b, and a lower surface 220a and a side surface 220b. ) May include an inclined surface 220c.
  • the light source member 230 disposed on the outer surface of the second body 220 may include the first circuit board 230a and the second body disposed on the lower surface 220a of the second body 220. It may include a second circuit board 230b disposed on the side surface 220b of 220 and a third circuit board 230c disposed on the inclined surface 220c of the second body 220. In this case, the second and third circuit boards 230b and 230c may be bent to surround the side surface 220b and the inclined surface 220c of the second body 220. At least one light source 235a, 235b, or 235c may be mounted on each of the circuit boards 230a, 230b, and 230c.
  • first circuit board 230a, the second circuit board 230b, and the third circuit board 230c may be disposed on the first circuit board 230a, the second circuit board 230b, and the third circuit board 230c.
  • At least one light source 235a, 235b, and 235c disposed in the can be controlled in various ways.
  • the lighting apparatus may variously control the intensity of light.
  • at least one light source 235a, 235b, 235c may all emit light upon switching on on the first circuit board 230a, the second circuit board 230b and the third circuit board 230c. have.
  • light sources 235a, 235b, and 235c disposed on two of the first circuit board 230a, the second circuit board 230b, and the third circuit board 230c may emit light by switching on. Can be.
  • the light sources 235a and 235b disposed on one of the first circuit board 230a, the second circuit board 230b, and the third circuit board 230c. , 235c may be switched on to emit light.
  • the intensity of light emitted from the lighting device is set to the weakest, only the light source 235b disposed on the third circuit board 230b may be switched on to emit light.
  • the application of power to the light source may be controlled by selecting and controlling a desired circuit board among the first circuit board 230a, the second circuit board 230b, and the third circuit board 230c.
  • the light source intensity can be provided.
  • the intensity and the brightness of the light source may be controlled in one circuit board.
  • the lighting apparatus may provide various atmospheres by controlling the types of light sources disposed on the circuit board and the light sources to which power is applied. That is, the lighting device may be implemented emotional lighting control.
  • the first light source 235a mounted on the first circuit board 230a may emit the diffused light (see FIG. 3A). Proceed directly to 110).
  • the second light source 235b mounted on the second circuit board 230b a portion of the emitted light may be reflected at least once on the inner surface of the cover 140 to proceed to the diffusion member (110 of FIG. 3A).
  • the third light source 235c mounted on the third circuit board 230c a part of light may be emitted between the first emission region A and the second emission region B of FIG. 3B.
  • a part of the light may overlap the first emission area A and the second emission area B.
  • the luminance difference between the first emission region A and the second emission region B of FIG. 3B may be reduced.
  • FIG. 5A is a perspective view of a second body in accordance with still another embodiment of the present invention
  • FIG. 5B is a cross-sectional view taken along line II ′ of FIG. 5A to which a light source member is fastened
  • 5C is a cross-sectional view in which the second body to which the light source member is fastened is disposed in the cover.
  • the second body 320 may have a convex shape protruding in a downward direction in which a diffusion member (not shown) is disposed. And one or more second holes 321 penetrating the second body 320.
  • the light source member 330 may include a flexible integrated circuit board 330a to surround the outer surface of the second body 320. Therefore, as shown in FIG. 5C, when the second body 220 is disposed inside the cover 140, the light emitted from the light source 335a mounted on the circuit board 330a is diffused (110 in FIG. 3A). Proceed evenly to all areas.
  • the lighting apparatus includes the first circuit board 130a and the cover 140 including at least one first light source 135a mounted toward the light emission direction of the diffusion member 110. And a light source member 130 including a second circuit board 130b including at least one second light source 135b mounted toward an inner surface. Therefore, the brightness uniformity of the lighting apparatus can be improved, and the quality of the lighting apparatus can be improved.
  • the second body of another embodiment may control the first circuit board 130a and the second circuit board 130b to provide various illumination intensities, colors, and temperatures.
  • the power source is applied to the light source only through one of the first circuit board 130a and the second circuit board 130b, so that the illumination device is limited to the desired area. Can emit.
  • the lighting apparatus may be controlled to provide a variety of atmosphere by controlling the type of light sources disposed on the circuit board and the light source to which the power is applied.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
PCT/KR2017/004543 2016-05-02 2017-04-28 조명 장치 Ceased WO2017191941A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018557116A JP6956112B2 (ja) 2016-05-02 2017-04-28 照明装置
US16/098,197 US10578273B2 (en) 2016-05-02 2017-04-28 Lighting apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0053963 2016-05-02
KR1020160053963A KR20170124271A (ko) 2016-05-02 2016-05-02 조명 장치

Publications (1)

Publication Number Publication Date
WO2017191941A1 true WO2017191941A1 (ko) 2017-11-09

Family

ID=60202917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/004543 Ceased WO2017191941A1 (ko) 2016-05-02 2017-04-28 조명 장치

Country Status (4)

Country Link
US (1) US10578273B2 (enExample)
JP (1) JP6956112B2 (enExample)
KR (1) KR20170124271A (enExample)
WO (1) WO2017191941A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD861955S1 (en) 2017-05-12 2019-10-01 Rbw Studio, Llc Light
CN210979552U (zh) * 2019-10-15 2020-07-10 漳州立达信光电子科技有限公司 一种吸顶灯

Citations (5)

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KR20170124271A (ko) 2017-11-10

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