CN110242873A - A kind of direct-illumination type panel lamp - Google Patents
A kind of direct-illumination type panel lamp Download PDFInfo
- Publication number
- CN110242873A CN110242873A CN201910652360.2A CN201910652360A CN110242873A CN 110242873 A CN110242873 A CN 110242873A CN 201910652360 A CN201910652360 A CN 201910652360A CN 110242873 A CN110242873 A CN 110242873A
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- Prior art keywords
- pedestal
- direct
- snap arm
- illumination type
- back box
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- 238000005286 illumination Methods 0.000 title claims abstract description 36
- 239000011324 bead Substances 0.000 claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 40
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 230000006872 improvement Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 206010023126 Jaundice Diseases 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
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- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- 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]
Abstract
The present invention provides a kind of direct-illumination type panel lamps, belong to panel light technical field, it include: back box, it is arranged in rectangle, the side of the back box extends outward to form flanging, and the bottom inside face of the back box is provided with several LED light bars disposed in parallel, is provided with several LED lamp beads in the LED light bar, lens are provided in the LED lamp bead, the lens by the light that LED lamp bead issues for breaing up and passing through diffusion panel；Top frame；Press strip, including bottom edge, side and overhead kick protrusion two, the side, which is disposed in parallel relation to one another and is vertically installed on bottom edge, constitutes card slot, the card slot is corresponding with indent, the overhead kick protrusion two is set on the free end outer wall of side, the overhead kick protrusion two engages with overhead kick protrusion one, and press strip is fixed with top frame, and the one end on the bottom edge is tilted to card slot direction；Diffusion panel is installed in side of the back box far from LED light bar.It is good that the present invention has the characteristics that design rationally, without screw assembles effect.
Description
Technical field
The invention belongs to panel light technical fields, are related to a kind of direct-illumination type panel lamp.
Background technique
The advantages that LED has power consumption low, and luminous intensity is big, energy conservation and environmental protection, it is traditional compared to incandescent lamp and fluorescent lamp etc.
Lamps and lanterns are increasingly by the preference of user.But the panel light of the prior art has following defects: most of 1 panel light is side
Photo structure can use this optical material of light guide plate, and the material of light guide plate is PMMA or PS, and above-mentioned material is using a period of time
It will appear the rotten problem of jaundice afterwards, and then influence product quality and illuminating effect；2 existing side optic panel lamps are all to use
More than 30 screws are fixed, and the inefficiency in production assembling process increases unnecessary cost.And the spelling of the prior art
Binding structure, assembling is difficult, under efficiency.
In conclusion to solve the deficiency of existing panel light in structure, the present invention devise a kind of design rationally, nothing
The direct-illumination type panel lamp for needing screw assembly effect good.
Summary of the invention
The present invention in order to solve the problems existing in the prior art, provide a kind of design rationally, good straight of illumination and decoration effect
Following formula panel light.
The purpose of the present invention can be achieved through the following technical solutions: a kind of direct-illumination type panel lamp, comprising:
Back box is arranged in rectangle, and the side of the back box extends outward to form flanging, and the bottom inside face of the back box is set
Several LED light bars disposed in parallel are equipped with, several LED lamp beads are provided in the LED light bar, are provided in the LED lamp bead
Lens, the lens by the light that LED lamp bead issues for breaing up and passing through diffusion panel；
Top frame, by four end to end compositions of frame, the frame includes indent and flanging, the inner wall pair of the indent
Title is provided with overhead kick protrusion one, and the indent is set in flanging, and the free end of the flanging is tilted to indent direction, the pressure
It is provided on the inside of side and parallel with indent supports item；
Press strip, including bottom edge, side and overhead kick protrusion two, the side are disposed in parallel relation to one another and are vertically installed on bottom edge
Card slot is constituted, the card slot is corresponding with indent, and the overhead kick protrusion two is set on the free end outer wall of side, the overhead kick protrusion
Two engage with overhead kick protrusion one, and press strip is fixed with top frame, and the one end on the bottom edge is tilted to card slot direction；
Diffusion panel is installed in side of the back box far from LED light bar.
As a further improvement, it is additionally provided with groove on the press strip, is removably provided with locking on the groove
Mechanism.
As a further improvement, the retaining mechanism includes pedestal and hook, and the hook is L-type, the hook with
Pedestal is connected and hook is tilted to the direction far from pedestal, and the angle of the pedestal and the hook is a, meets quantitative relation:
130°≦a≦150°。
As a further improvement, the both ends of the pedestal are respectively arranged with snap arm one and snap arm two, the snap arm one to
Direction far from hook is arranged and perpendicular to pedestal, and one end of the snap arm one is fixed with pedestal, the other end of the snap arm one
It is provided with welt, the welt connect with snap arm one and is parallel to pedestal.
As a further improvement, the snap arm two is to the direction setting far from hook and perpendicular to pedestal, the snap arm
Two one end is fixed with pedestal, and the other end of the snap arm two extends outwardly for bearing surface, and one end of the bearing surface is to downward
It stretches and is tilted to the inside of pedestal.
As a further improvement, the equal length of the snap arm two and the snap arm one.
As a further improvement, power pack is removably provided on the press strip.
As a further improvement, arc groove is provided between the flanging and back box.
Compared with prior art, structure of the invention design rationally, is embedded lamp bar by back box medial surface, while installing diffusion
Plate uniformly dissipates convenient for light, promotes radiation response；The setting of card slot and indent is so that barb protrusion two and the raised phase of barb
Mutually engaging, ensure that and be completely embedded between diffuser plate and top frame, press strip, it is ensured that integral installation quality, using effect are good.Under this is straight
The assembling structure of formula panel light compares the assembling structure of the prior art without using bolt, and assembly efficiency is promoted, and eliminates and beats spiral shell
The process of silk, retaining mechanism can be directly caught in mounting groove, reach quick assembling, stable connection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 2 is the back box structural schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 3 is the layering structure schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 4 is the left view of the press strip of direct-illumination type panel lamp of the present invention；
Fig. 5 is the press strip and top frame structural schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 6 is the power pack structural schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 7 is the top view of the power pack of direct-illumination type panel lamp of the present invention；
Fig. 8 is the locking mechanism structure schematic diagram of direct-illumination type panel lamp of the present invention；
Fig. 9 is another viewing angle constructions schematic diagram of retaining mechanism of direct-illumination type panel lamp of the present invention；
Figure 10 is the back box and LED lamp strip structure schematic diagram of direct-illumination type panel lamp of the present invention；
Figure 11 is the cross-sectional view of direct-illumination type panel lamp of the present invention；
Figure 12 is the partial enlarged view of the cross-sectional view A of direct-illumination type panel lamp of the present invention；
In figure, 1- back box, 11-LED lamp bar, 12- flanging, 13- arc groove, 2- diffusion panel, 3- top frame, 31- frame,
311- indent, 312- flanging, 313- overhead kick protrusion one, 314- support item, 4- press strip, the bottom edge 41-, the side 42-, 43- overhead kick protrusion
Two, 44- card slot, 45- mounting groove, 5- retaining mechanism, 51- grab, 52- pedestal, 521- snap arm one, 5211- welt, 522- snap arm
Two, 5221- bearing surface, 6- power pack, 7- direct-illumination type panel lamp.
Specific embodiment
Below with reference to examples and drawings, technical solution of the present invention is further elaborated.
As shown in Figures 1 to 12,
A kind of direct-illumination type panel lamp, comprising:
Back box 1 is arranged in rectangle, and the side of the back box 1 extends outward to form flanging 12, in the bottom of the back box 1
Side is provided with several LED light bars disposed in parallel 11, and several LED lamp beads, the LED light are provided in the LED light bar 11
Lens are provided on pearl, the lens by the light that LED lamp bead issues for breaing up and passing through diffusion panel；
Top frame 3, by four end to end compositions of frame 31, the frame includes indent 311 and flanging 312, the pressure
The inner wall of slot 311 is symmetrically arranged with overhead kick protrusion 1, and the indent is set in flanging, the free end of the flanging 312 to
The inclination of indent direction, the inside of the flanging 312 are provided with parallel with indent to item 314；
Press strip 4, including bottom edge 41, side 42 and overhead kick protrusion 2 43, the side is disposed in parallel relation to one another and is vertically arranged
In constituting card slot 44 on bottom edge, the card slot 44 is corresponding with indent, and the overhead kick protrusion two is set on the free end outer wall of side,
Overhead kick protrusion 2 43 engages with overhead kick raised one, and press strip 4 is fixed with top frame 3, and the one end on the bottom edge 41 is to card slot
Direction inclination；
Diffusion panel 2 is installed in the side of the back box 1 far from LED light bar.
The advantages that LED has power consumption low, and luminous intensity is big, energy conservation and environmental protection, it is traditional compared to incandescent lamp and fluorescent lamp etc.
Lamps and lanterns are increasingly by the preference of user.But the panel light of the prior art has following defects: most of 1 panel light is side
Photo structure can use this optical material of light guide plate, and the material of light guide plate is PMMA or PS, and above-mentioned material is using a period of time
It will appear the rotten problem of jaundice afterwards, and then influence product quality and illuminating effect；2 existing side optic panel lamps are all to use
More than 30 screws are fixed, and the inefficiency in production assembling process increases unnecessary cost.And the spelling of the prior art
Binding structure, assembling is difficult, under efficiency.
For this purpose, the present invention devises a kind of direct-illumination type panel lamp, this material of light guide plate is eliminated, uses lens instead for light
It breaks up, achievees the effect that uniform in light emission, also avoid the mass defect of traditional side optic panel lamp.
As shown in figure 9, being provided with several LED lamp beads in LED light bar 11, lens are provided in LED lamp bead, which is used for
The light that LED lamp bead issues is broken up and passes through diffusion panel；7 parallel LED light bars 11 at equal intervals are specially provided with, often
Be provided with 8 LED lamp beads in a LED light bar 11, be provided with lens in LED lamp bead, lens at work, by LED lamp bead
Diffusion panel 2 is broken up and passed through to the light of sending, eliminates light guide plate, so that direct-illumination type panel lamp will not be sent out in use
Xanthochromia matter, and lens break up light, and so that uniform in light emission, illumination efficiency is high.
As shown in figure 5, top frame 3, by four end to end compositions of frame 31, press strip 4 and top frame 3 pass through 311 He of indent
The mutual cooperation of card slot 44, is assembled, and is specifically mutually clamped for barb protrusion 2 43 and barb protrusion 1, so that card
Slot 44 is caught in indent 311, compares the splicing construction of the prior art, the snap fit group of indent 311 of the invention and card slot 44
Dress is simple, high-efficient.
As shown in Figure 10, after mounting, it is tilted due to 41 one end of bottom edge of press strip 4 to 44 direction of card slot, bottom edge 41 is inclined
Splay end contacts with the flanging 12 of back box 1 and pushes down flanging 12, due to the cooperation of card slot 44 and indent 311, realizes consolidating for back box 1
It is fixed.During the work time, due to bottom edge 41, to the inclination of card slot direction, there are two effects: 1, realizing the fixation of back box 1,2, freedom
Inclined bottom edge 41 is held to make during the work time, light irradiation avoids light leakage, and using effect is good.Wherein, after mounting, due to
The inside of flanging 312 be provided with it is parallel with indent support item 314, contacted to item 314 with diffuser plate 2, and the freedom of flanging 312
Light leakage when holding to indent direction and tilt, further make good fixing effect, and can be avoided light irradiation, conducive to light
Diverging.
As a further improvement, it is additionally provided with mounting groove 45 on the press strip 4, is removably set on the mounting groove 45
It is equipped with retaining mechanism 5.When retaining mechanism 5 is used as safety hook so that this direct-illumination type panel lamp is installed, safety is promoted.
As a further improvement, the retaining mechanism 5 includes pedestal 52 and hook 51, and the hook 51 is L-type, described
Hook 51 is connected with pedestal 52 and hook is tilted to the direction far from pedestal, and the angle of the pedestal and the hook is a, meets
Quantitative relation: 130 °≤a≤150 °.The both ends of the pedestal 52 are respectively arranged with snap arm 1 and snap arm 2 522, the card
For arm 1 to the direction setting far from hook 51 and perpendicular to pedestal 52, one end of the snap arm 1 and pedestal 52 are fixed,
The other end of the snap arm 1 is provided with welt 5211, and the welt 5211 connect with snap arm 1 and is parallel to pedestal
52.The snap arm 2 522 is to the direction setting far from hook 51 and perpendicular to pedestal 52, one end and bottom of the snap arm 2 522
Seat 52 is fixed, and the other end of the snap arm 2 522 extends outwardly for bearing surface 5221, and one end of the bearing surface 5221 is to downward
It stretches and is tilted to the inside of pedestal 52.
As shown in FIG. 7 and 8, specifically install when, retaining mechanism 5 realizes locking by snap arm 1 and snap arm 2 522
The fixation of mechanism 5 and press strip 4 is provided with mounting groove 45 on press strip 4, snap arm 1 is put into mounting groove 45 first, then will card
Arm 2 522 is pressed into mounting groove 45, since the other end of the snap arm 2 522 extends outwardly for bearing surface 5221, the abutting
The one end in face 5221 extends downwardly and tilts to the inside of pedestal 52.Bearing surface 5221 is contacted with press strip 4, bearing surface 5221 from
It is contacted by holding with flanging 312, for the fixation between retaining mechanism 5 and direct-illumination type panel lamp without using screw, assembly is simple.
As a further improvement, the equal length of the snap arm 2 522 and the snap arm 1.
As a further improvement, power pack 6 is removably provided on the press strip 4.The end construction of power pack 6 with
The structure of retaining mechanism 5 is similar, and assembly is simple, is readily disassembled.More specifically, it is produced in use in power pack in order to prevent
Raw cracking loosens, and the two sides of power pack 6 are symmetrically arranged with fixing end 61, and fixing end 61 is equipped with fixation hole, in assembly, leads to
The fixation that screw realizes power pack 4 and back box 1 is crossed, being arranged such in use process will not cracking or loosen.
As a further improvement, arc groove 13 is provided between the flanging 12 and back box 1.The arcwall face of arc groove 13
It can be contacted with diffusion panel 2, bottom edge 41 is contacted with the flanging 12 of back box 1 at this time.When above structure enables to light to irradiate,
It avoids being completely embedded between light leakage and assembling structure, it is ensured that the quality of installation, using effect are good.
This direct-illumination type panel lamp is reasonable in design, is embedded lamp bar 11 by 1 medial surface of back box, while installing diffuser plate 2
It is uniformly dissipated convenient for light, promotes radiation response；The setting of card slot and indent is so that barb protrusion 2 43 and barb protrusion 1
It is mutually clamped, ensure that and be completely embedded between diffuser plate 2 and top frame 3, press strip 4, it is ensured that integral installation quality, using effect are good.
The assembling structure of this direct-illumination type panel lamp compares the assembling structure of the prior art without using bolt, and assembly efficiency is promoted, removed from
The process to screw, retaining mechanism 5 can be directly caught in mounting groove, reach quick assembling, stable connection.
Described herein is only the preferred embodiment of the present invention, but protection scope of the present invention is not limited to
This.The similar side of the modify or supplement or adopt that those skilled in the art in the invention carry out described specific embodiment
Formula replacement, should all be covered by within protection scope of the present invention.
Claims (8)
1. a kind of direct-illumination type panel lamp characterized by comprising
Back box (1) is arranged in rectangle, and the side of the back box (1) extends outward to form flanging (12), the bottom of the back box (1)
Portion's medial surface is provided with several LED light bars disposed in parallel (11), is provided with several LED lamp beads, institute on the LED light bar (11)
It states and is provided with lens in LED lamp bead, the lens by the light that LED lamp bead issues for breaing up and passing through diffusion panel；
Top frame (3), by four end to end compositions of frame (31), the frame includes indent (311) and flanging (312), institute
The inner wall for stating indent (311) is symmetrically arranged with overhead kick protrusion one (313), and the indent is set in flanging, the flanging (312)
Free end tilted to indent direction, be provided on the inside of the flanging (312) parallel with indent to item (314)；
Press strip (4), including bottom edge (41), side (42) and overhead kick protrusion two (43), the side are disposed in parallel relation to one another and vertically
It is set to bottom edge and constitutes card slot (44), the card slot (44) is corresponding with indent, and the overhead kick protrusion two is set to the free end of side
On outer wall, the overhead kick protrusion two (43) engages with overhead kick protrusion one, and press strip (4) is fixed with top frame (3), the bottom edge
One end is tilted to card slot direction；
Diffusion panel (2) is installed in the side of the back box (1) far from LED light bar.
2. a kind of direct-illumination type panel lamp according to claim 1, which is characterized in that be additionally provided with peace on the press strip (4)
Tankage (45) is removably provided with retaining mechanism on the mounting groove (45).
3. a kind of direct-illumination type panel lamp according to claim 2, which is characterized in that the retaining mechanism (5) includes pedestal
(52) and hook (51), the hook (51) is L-type, and the hook (51) is connected with pedestal (52) and hook is to separate pedestal
The angle of direction inclination, the pedestal and the hook is a, meets quantitative relation: 130 °≤a≤150 °.
4. a kind of direct-illumination type panel lamp according to claim 3, which is characterized in that the both ends of the pedestal (52) are set respectively
Be equipped with snap arm one (521) and snap arm two (522), the snap arm one (521) to the direction setting far from hook (51) and perpendicular to
Pedestal (52), one end and pedestal (52) of the snap arm one (521) are fixed, and the other end of the snap arm one (521) is provided with patch
Side (5211), (5211 connect with snap arm one (521) and are parallel to pedestal (52) welt.
5. a kind of direct-illumination type panel lamp according to claim 4, which is characterized in that the snap arm 2 is 522) to far from hook
(51) direction is arranged and perpendicular to pedestal (52), and one end and pedestal (52) of the snap arm two (522) are fixed, the snap arm two
(522) the other end extends outwardly for bearing surface (5221), and one end of the bearing surface (5221) extends downwardly and to pedestal
(52) inside inclination.
6. a kind of direct-illumination type panel lamp according to claim 5, which is characterized in that the snap arm two (522) and the card
The equal length of arm one (521).
7. a kind of direct-illumination type panel lamp according to claim 3, which is characterized in that removably set on the press strip (4)
It is equipped with power pack (6).
8. a kind of direct-illumination type panel lamp according to claim 1, which is characterized in that the flanging (12) and back box (1) it
Between be provided with arc groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652360.2A CN110242873A (en) | 2019-07-18 | 2019-07-18 | A kind of direct-illumination type panel lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652360.2A CN110242873A (en) | 2019-07-18 | 2019-07-18 | A kind of direct-illumination type panel lamp |
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| Publication Number | Publication Date |
|---|---|
| CN110242873A true CN110242873A (en) | 2019-09-17 |
Family
ID=67892822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910652360.2A Pending CN110242873A (en) | 2019-07-18 | 2019-07-18 | A kind of direct-illumination type panel lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021081812A1 (en) * | 2019-10-30 | 2021-05-06 | 浙江优码诺光电科技有限公司 | Direct-lit panel light |
| US11396995B2 (en) * | 2020-07-17 | 2022-07-26 | Xiamen Leedarson Lighting Co., Ltd | Panel light apparatus |
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| US11396995B2 (en) * | 2020-07-17 | 2022-07-26 | Xiamen Leedarson Lighting Co., Ltd | Panel light apparatus |
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