CN103672634A - Modular panel lamp - Google Patents

Modular panel lamp Download PDF

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Publication number
CN103672634A
CN103672634A CN201310236704.4A CN201310236704A CN103672634A CN 103672634 A CN103672634 A CN 103672634A CN 201310236704 A CN201310236704 A CN 201310236704A CN 103672634 A CN103672634 A CN 103672634A
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CN
China
Prior art keywords
flat lamp
lgp
light
heat sink
guide board
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.)
Granted
Application number
CN201310236704.4A
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Chinese (zh)
Other versions
CN103672634B (en
Inventor
徐志明
李明锁
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.)
JIANGSU RUIFENG ELECTRONIC PRODUCTS Co Ltd
Original Assignee
JIANGSU RUIFENG ELECTRONIC PRODUCTS 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 JIANGSU RUIFENG ELECTRONIC PRODUCTS Co Ltd filed Critical JIANGSU RUIFENG ELECTRONIC PRODUCTS Co Ltd
Priority to CN201310236704.4A priority Critical patent/CN103672634B/en
Priority to CN201610687955.8A priority patent/CN106247217B/en
Priority to CN201610682626.4A priority patent/CN106247234B/en
Publication of CN103672634A publication Critical patent/CN103672634A/en
Application granted granted Critical
Publication of CN103672634B publication Critical patent/CN103672634B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/04Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening 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
    • F21V17/12Fastening 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 by screwing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/22Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape

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

Abstract

The invention relates to a modular panel lamp comprising at least one panel lamp module. The panel lamp module comprises a PCB and a light guide board arranged at the lower end of the PCB. An inner ring of a central through hole of the light guide board turns upwards and is vertically adjacent to LEDs which are arranged on the PCB in an annular mode and evenly distributed. The light guide board is provided with a plurality of folding edges distributed in a central symmetry mode so that the repeated steering light guiding function can be achieved, light irradiates out of the light guide board for lighting, the light is distributed in a multi-layer mode, then the light scattering area is enlarged, and the light is soft and even. Meanwhile, if several LEDs are damaged, the visual effect of the whole light guide board is not affected. A single-ring or multi-ring light emission structure is adopted, and the light guide board can be designed to be square or circular or be in other shapes. The light guide board is just provided with light reflection painting, the structures such as diffusion points, reflection boards or films and diffusion boards are not needed, assembling is convenient, and cost is lowered. The lighting effect is not affected by dust accumulated inside the light guide board.

Description

Modular flat lamp
Technical field
The present invention relates to a kind of light fixture, particularly relate to the modular flat lamp that adopts LED or other miniature lamp bead to form.
Background technology
Existing LED flat lamp is divided into according to illumination mode: two kinds of side entering type and straight-down negative LED flat lamp.
Side entering type LED flat lamp is mainly by frame support, the diffuser plate setting gradually up and down, reflector, LGP, and a plurality of lamp bars that are oppositely arranged with the edge of LGP respectively, and drive and form.The topmost function of LGP is will be by the direction of light navigation designing, and optical material has PS polystyrene, the poly-carbonic acid vinegar of PC, PMMA (poly-methyl methacrylate vinegar) acrylic material etc.The deficiency of side entering type flat lamp is mainly: the first, and it is very high that efficiency is not allowed to be easy to do, and area more greatly is not more allowed to be easy to do.The second, weight is heavier, and price is higher.LGP is the core of side entering type flat lamp, and it is high that cost ratio straight-down negative is wanted; The 3rd, higher to LGP quality requirement, if design badly, bright in the middle of there will be, both sides are dark, or enter plain edge and have bright border, or the phenomenon such as different angles brightness is inconsistent, affect lighting quality.The 4th, unfailing performance is relatively poor, because LGP, reflective ink and reflectance coating are in higher temperature all the time, is easy to aging yellowing, causes light emission rate to reduce, and lamp life is had a greatly reduced quality.The 5th, lamp bar arranges in opposite directions, and light source utilization rate is lower.
Straight-down negative LE D flat lamp is comprised of frame support, diffuser plate, the plane that drives, be furnished with LED particle.Straight-down negative LED flat lamp structure and side entering type are similar, just light source be evenly distributed on diffuser plate after, compare side entering type, can not do very thinly, the distance of light source and diffuser plate can not be too near, so whole lamp size is thicker, but efficiency is high more a lot of than side entering type.The main weak point of straight-down negative flat lamp is to do too thinly, between LED light source and diffuser plate, will have certain spacing, otherwise light fixture can produce bright spot, this certainly will cause the thickness of light fixture to increase, the cost of lamp outer casing is and then increased, and it is not good that the outward appearance of light fixture also can seem.And thickness increased, just increased the delivering path of light, the efficiency of light fixture is reduced.Because lamp pearl is to be fixed on postnotum, if postnotum full wafer aluminium base, cost will be very high so, if with the aluminium base of bar shaped, fixing and location etc. is again a problem.If the postnotum of straight-down negative flat lamp is used the aluminium sheet of large face, also to consider to lift for a long time the problems such as postnotum bending.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of simple in structure, module number can arbitrarily increase and decrease, it is convenient to change, modular flat lamp that light source utilization rate is higher.
In order to address the above problem, the invention provides a kind of modular flat lamp, comprise at least one flat lamp module; This flat lamp module comprises: pcb board, is suitable for the LGP of this pcb board lower end; The inner ring of the center through hole of LGP upwards turnover and with pcb board on ringwise and the neighbouring setting of equally distributed LED; On LGP, there are a plurality of flangings that Central Symmetry distributes, to realize the function that repeatedly turns to leaded light, realized multi-turn ray structure, light is penetrated to LGP illumination as far as possible, and make light Multi-layers distributing, and then expanded emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP.
As preferred embodiment, described pcb board is fixed on the bottom of a heat sink, and this heat sink is connected on frame support by insulating part.
As further preferred embodiment, the part in the center through hole in LGP on described pcb board is also provided with a plurality of LED; The center through hole of described LGP is provided with inner ring light conductor, and the lower surface of this inner ring light conductor is suitable for covering the center through hole of described LGP.
As further preferred embodiment, described inner ring light conductor central authorities are fixed with bolt, this inner ring light conductor by described bolt be threaded io described heat sink bottom, described LGP is fixed on to described heat sink bottom simultaneously.
As further preferred embodiment, described LGP is rounded or square.
As further preferred embodiment, between heat sink and frame support, there are a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures, form heat dissipation channel, cold air enters from each ventilation pod apertures, after heat exchange, from above-mentioned ventilating opening, discharges.
As further preferred embodiment, on described heat sink, be fixed with power supply, described frame support is provided with backboard, and described power supply is located at this backboard below.
As further preferred embodiment, the end face of described LGP and inner ring light conductor is coated with reflectance coating.
As further preferred embodiment, the part away from described center through hole of described LGP is provided with at least 2 flangings.
As further preferred embodiment, each power supply in the flat lamp module of described a plurality of adjacent settings is in parallel, according to module number, selects the power supply of respective numbers; Due to a plurality of lower powered power supply price sums, be less than the price of single large power supply, therefore can further save cost.
The present invention has positive effect with respect to prior art:
(1) illuminator of the present invention is the design of changeable type module, can realize and install, changes or upgrading without instrument;
(2) in the present invention's employing, mind-set surrounding light guide module designs and vertically turns horizontal leaded light design, makes module fixing simple, can utilize the flat lamp of any block size of module realization;
(3) flat lamp of the present invention is safe: heat sink is connected on frame support by insulating part, has realized electrical body and the space isolation that can contact housing parts, stops the various electric shock risks that may cause;
(4) flat lamp radiating effect of the present invention is fabulous: full base plate heat radiation, and thermal convection holes is set, can easily realize powerful lighting requirement (as the flat lamp of 60*60cm can be realized power more than 100W);
(5) the present invention adopts superthin structure design, can built-in power, without furred ceiling or open installing hole, do not need mounting bracket directly to carry out veneer installation on ceiling or metope, greatly facilitate use;
(6) flat lamp of the present invention is easy to maintenance, does not need instrument or professional electrician's knowledge, can easily change any parts are convenient;
(7) the present invention adopts single-turn or multi-turn ray structure, square, circular or other shapes that LGP can be designed to.LGP of the present invention is designed to only have reflecting coating, does not need to spread the structure of point, reflecting plate or film, diffuser plate etc., ease of assembly and reduced cost.The inner dust stratification of LGP, does not affect illuminating effect;
(8) on LGP, there are a plurality of flangings that Central Symmetry distributes, to realize the function that repeatedly turns to leaded light, light is penetrated to LGP illumination as far as possible, reduce as far as possible the light that is incident upon LGP end face, improved light utilization, and make light Multi-layers distributing, and then expanded emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP;
(9) flat lamp of the present invention adopts with light-emitting area and is equal to big or small heat sink, between heat sink and frame support, there are a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures, form heat dissipation channel, cold air enters from each ventilation pod apertures, after heat exchange, from above-mentioned ventilating opening, discharge, so good heat dissipation effect and uniform heat distribution, the heat island problem that side leaded light flat lamp of the prior art can only utilize frame heat radiation to form solved.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present invention and than the technical advantage of existing product, below by means of accompanying drawing by a possible embodiment of limiting examples explanation of the described principle of application.In the drawings:
Fig. 1 is the end face structure figure of modular flat lamp of the present invention, and LGP is wherein square;
Fig. 2 is the another kind of end face structure figure of modular flat lamp of the present invention, and LGP is wherein rounded;
Fig. 3 is the cross-sectional view of the modular flat lamp in above-mentioned Fig. 1 or Fig. 2;
Reference numeral: 1: illuminating module support, 2: bracket screw, 3:LED, 4:PCB plate, 5: backboard, 6: heat sink, 7: power supply, 8: frame support, 9: insulating part, 10: reflective coating, 11: LGP, 12: inner ring light conductor, 13: bolt, 14: flat lamp module.
The specific embodiment
Embodiment mono-
The modular flat lamp of the present embodiment, comprises at least one flat lamp module 14 as shown in Figure 3; This flat lamp module 14 comprises: pcb board 4, is suitable for the LGP 11 of these pcb board 4 lower ends; The inner ring of the center through hole of LGP 11 upwards turnover and with pcb board 4 on ringwise and the neighbouring setting of equally distributed LED3; On LGP 11, there are a plurality of flangings that Central Symmetry distributes, to realize the function that repeatedly turns to leaded light, light is penetrated to LGP illumination as far as possible, and make light Multi-layers distributing, realized multi-turn ray structure, and then expanded emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP.
Described pcb board 4 is fixed on the bottom of a heat sink 6, and this heat sink 6 is connected on frame support 8 by insulating part 9.Between heat sink 6 and frame support 8, there are a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures.
Part in the center through hole in LGP 11 on described pcb board 4 is also provided with a plurality of LED; The center through hole of described LGP 11 is provided with inner ring light conductor 12, and the lower surface of this inner ring light conductor 12 is suitable for covering the center through hole of described LGP 11.
Described inner ring light conductor 12 central authorities are fixed with bolt 13, and this inner ring light conductor 12 is by described bolt 13 and be threaded io described heat sink 6 bottoms, described LGP 11 is fixed on to described heat sink 6 bottoms simultaneously.
On described heat sink 6, be fixed with power supply 7, described frame support 8 is provided with backboard 5, and described power supply 7 is located at this backboard 5 belows.
The end face of described LGP 11 and inner ring light conductor 12 is coated with reflectance coating 10.
The part away from described center through hole of described LGP 11 is provided with at least 2 flangings.
Each power supply 7 parallel connections in the flat lamp module 14 of described a plurality of adjacent settings, according to the power supply of module number selection respective numbers; Due to a plurality of lower powered power supply price sums, be less than the price of single large power supply, therefore can further save cost.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation that spirit of the present invention extended out or change still among protection scope of the present invention.

Claims (10)

1. a modular flat lamp, is characterized in that comprising at least one flat lamp module; This flat lamp module comprises: pcb board, is suitable for the LGP of this pcb board lower end; The inner ring of the center through hole of LGP upwards turnover and with pcb board on ringwise and the neighbouring setting of equally distributed LED; On LGP, there are a plurality of flangings that Central Symmetry distributes.
2. modular flat lamp according to claim 1, is characterized in that: described pcb board is fixed on the bottom of a heat sink, and this heat sink is connected on frame support by insulating part.
3. modular flat lamp according to claim 2, is characterized in that: the part in the center through hole in LGP on described pcb board is also provided with a plurality of LED; The center through hole of described LGP is provided with inner ring light conductor, and the lower surface of this inner ring light conductor is suitable for covering the center through hole of described LGP.
4. modular flat lamp according to claim 3, it is characterized in that: described inner ring light conductor central authorities are fixed with bolt, this inner ring light conductor is by described bolt and be threaded io described heat sink bottom, described LGP is fixed on to described heat sink bottom simultaneously.
5. modular flat lamp according to claim 1, is characterized in that: described LGP is rounded or square.
6. modular flat lamp according to claim 2, is characterized in that: between described heat sink and frame support, have a plurality of ventilating openings, be evenly distributed with a plurality of ventilation pod apertures on heat sink.
7. modular flat lamp according to claim 1, is characterized in that: on described heat sink, be fixed with power supply, described frame support is provided with backboard, and described power supply is located at this backboard below.
8. modular flat lamp according to claim 3, is characterized in that: the end face of described LGP and inner ring light conductor is coated with reflectance coating.
9. modular flat lamp according to claim 3, is characterized in that: the part away from described center through hole of described LGP is provided with at least 2 flangings.
10. modular flat lamp according to claim 3, is characterized in that: each power supply in the flat lamp module of described a plurality of adjacent settings is in parallel.
CN201310236704.4A 2013-06-14 2013-06-14 Modular panel lamp Expired - Fee Related CN103672634B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310236704.4A CN103672634B (en) 2013-06-14 2013-06-14 Modular panel lamp
CN201610687955.8A CN106247217B (en) 2013-06-14 2013-06-14 Using LED, module number can rubato flat lamp
CN201610682626.4A CN106247234B (en) 2013-06-14 2013-06-14 Using LED flat lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310236704.4A CN103672634B (en) 2013-06-14 2013-06-14 Modular panel lamp

Related Child Applications (2)

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CN201610682626.4A Division CN106247234B (en) 2013-06-14 2013-06-14 Using LED flat lamp
CN201610687955.8A Division CN106247217B (en) 2013-06-14 2013-06-14 Using LED, module number can rubato flat lamp

Publications (2)

Publication Number Publication Date
CN103672634A true CN103672634A (en) 2014-03-26
CN103672634B CN103672634B (en) 2016-10-05

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CN201610687955.8A Expired - Fee Related CN106247217B (en) 2013-06-14 2013-06-14 Using LED, module number can rubato flat lamp
CN201310236704.4A Expired - Fee Related CN103672634B (en) 2013-06-14 2013-06-14 Modular panel lamp
CN201610682626.4A Expired - Fee Related CN106247234B (en) 2013-06-14 2013-06-14 Using LED flat lamp

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Application Number Title Priority Date Filing Date
CN201610687955.8A Expired - Fee Related CN106247217B (en) 2013-06-14 2013-06-14 Using LED, module number can rubato flat lamp

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Application Number Title Priority Date Filing Date
CN201610682626.4A Expired - Fee Related CN106247234B (en) 2013-06-14 2013-06-14 Using LED flat lamp

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CN109058817A (en) * 2018-07-18 2018-12-21 吴江友鑫新材料科技有限公司 A kind of ultra-thin LED flat panel lamp
JP2019149273A (en) * 2018-02-27 2019-09-05 パナソニックIpマネジメント株式会社 Lighting fixture
CN114263873A (en) * 2021-12-28 2022-04-01 重庆长安汽车股份有限公司 Automobile ceiling lamp

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CN107270242A (en) * 2017-07-21 2017-10-20 中国科学院上海光学精密机械研究所 Lift the amplifier architecture of xenon lamp transmission efficiency and distributing homogeneity
CN110764309B (en) * 2019-10-31 2022-07-15 深圳市德仓科技有限公司 Backlight module, display screen and terminal

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CN201582747U (en) * 2009-10-28 2010-09-15 福建鸿博光电科技有限公司 Combined LED ceiling lamp mounting support
US20130051066A1 (en) * 2011-08-24 2013-02-28 Panasonic Corporation Illumination apparatus
CN103104862A (en) * 2011-11-09 2013-05-15 株式会社东芝 Surface light source device
CN202533599U (en) * 2012-01-19 2012-11-14 东莞市康德五金电子有限公司 Light guide plate and backlight module having the light guide plate
JP2013229153A (en) * 2012-04-25 2013-11-07 Koito Mfg Co Ltd Lamp fitting for vehicle
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019149273A (en) * 2018-02-27 2019-09-05 パナソニックIpマネジメント株式会社 Lighting fixture
JP7122600B2 (en) 2018-02-27 2022-08-22 パナソニックIpマネジメント株式会社 lighting equipment
CN109058817A (en) * 2018-07-18 2018-12-21 吴江友鑫新材料科技有限公司 A kind of ultra-thin LED flat panel lamp
CN114263873A (en) * 2021-12-28 2022-04-01 重庆长安汽车股份有限公司 Automobile ceiling lamp
CN114263873B (en) * 2021-12-28 2023-06-06 重庆长安汽车股份有限公司 Car roof lamp

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Publication number Publication date
CN106247217A (en) 2016-12-21
CN106247217B (en) 2017-12-05
CN106247234A (en) 2016-12-21
CN106247234B (en) 2018-02-27
CN103672634B (en) 2016-10-05

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