CN105179982A - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN105179982A CN105179982A CN201510698533.6A CN201510698533A CN105179982A CN 105179982 A CN105179982 A CN 105179982A CN 201510698533 A CN201510698533 A CN 201510698533A CN 105179982 A CN105179982 A CN 105179982A
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- Prior art keywords
- power supply
- group
- luminescence unit
- lighting device
- unit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
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- 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
- F21V23/023—Power supplies in a casing
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- 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
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The embodiment of the invention discloses a lighting device. The purpose is to solve the problem that in the prior art, illumination light emitted by a lighting device lacks layering feeling. The lighting device comprises a shell, a light source module and a power module. The light source module is installed on the shell, the light source module comprises two light emitting units, and the power module is electrically connected with the light source module. The light source module is arranged to output different currents to all the light emitting units. According to the technical scheme, the two light emitting units are arranged, different currents are output to the light emitting units, the light emitting units emit illumination light different in brightness, and therefore the lighting device emits illumination light in a layering mode.
Description
Technical field
The present invention relates to lighting technical field, particularly a kind of lighting device.
Background technology
Current, lighting device generally sends irradiation light by power-actuated luminescence unit to irradiated object, realizes illuminating irradiated object.Due to lighting device send the equal positive correlation of current value of irradiating the brightness of light and the quantity of luminescence unit and supply luminescence unit, existing lighting device send by raising lighting device the brightness of irradiation light, the luminescence unit of a greater number generally can be set.
But in existing lighting device, the electric current supplying all luminescence units is all the same, make all luminescence units to send the brightness of irradiating light consistent, lack bright blindstory, reduce Consumer's Experience.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of lighting device, all luminescence units of the lighting device for solving prior art send the brightness of irradiating light and lack the problem of level.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of lighting device, comprising:
Housing;
Light source module, is mounted to described housing, and described light source module comprises two groups of luminescence units;
Power supply module, is electrically connected with described light source module, and described power supply module is configured to export different electric currents to each group of luminescence unit.
Preferably, described power supply module comprises power supply unit, and described power supply unit comprises a power supply, two groups of separate supply lines and connects the power supply management device of Liang Zu supply line and power supply; Often organize described supply line and one group of luminescence unit is electrically connected, described power supply management device is configured to control power supply and exports different electric currents to Ge Zu supply line.
Preferably, described power supply module comprises power supply unit, and described power supply unit comprises two relatively independent power supplys and Liang Zu supply line, and each power supply is all electrically connected by one group of supply line and one group of luminescence unit.
Preferably, described power supply unit comprises the power supply management device of connection two power supplys, and described power supply management device is configured to control two power supplys and exports different electric currents.
Preferably, described power supply module is configured to export relative scale is that 1:2,4:3,2:1 or 4:1 electric current is to each group of luminescence unit.
Preferably, described lens are arranged to any combination of annular, side annular, triangle, hexagon or former figures.
Preferably, described two groups of luminescence units are arranged to any combination of the different annular of size, side annular, triangle, hexagon or former figures.
Preferably, described two groups of luminescence units are arranged to size difference and the annular of the concyclic heart.
Preferably, described two groups of luminescence units comprise the first luminescence unit group being positioned at inner ring and the second luminescence unit group being positioned at outer shroud, described first luminescence unit group is configured to the irradiation light sending diffusion, and described second luminescence unit group is configured to the irradiation light sending convergence.
The technical scheme provided from the above embodiment of the present invention, luminescence unit is divided at least two groups by the lighting device of the embodiment of the present invention, and different electric currents is exported to each group of luminescence unit, each group of luminescence unit sends the irradiation light of different brightness, makes luminescence unit send irradiation light and has bright blindstory.
The object of the embodiment of the present invention is to provide a kind of lighting device, all luminescence units of the lighting device for solving prior art send that to irradiate light can be only consistent brightness and the problem that cannot adjust.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of lighting device, comprising:
Housing;
Light source module, is mounted to described housing, and described light source module comprises at least two group luminescence units, often organizes luminescence unit and coordinates with same lens;
Power supply module, is electrically connected with described light source module, and described power supply module comprises:
Power supply unit, is electrically connected with each group of luminescence unit, and for outputing current to each group of luminescence unit, described power supply unit has the first powering mode and the second powering mode; At the first powering mode, described power supply unit exports same current to each group of luminescence unit, and at the second powering mode, described power supply unit exports different electric current to each group of luminescence unit;
Mode switch element, switches between described first powering mode and the first powering mode for controlling power supply unit.
Preferably, described power supply module comprises power supply unit, and described power supply unit comprises a power supply, two groups of separate supply lines and connects the power supply management device of Liang Zu supply line and power supply; Often organize described supply line and one group of luminescence unit is electrically connected, described power supply management device is configured to control power supply and exports similar and different electric current to Ge Zu supply line.
Preferably, described power supply module comprises power supply unit, described power supply unit comprises two relatively independent power supplys, Liang Zu supply line and connects the power supply management device of two power supplys, each power supply is all electrically connected by one group of supply line and one group of luminescence unit, and described power supply management device is configured to control two power supplys and exports similar and different electric current.
Preferably, wireless connections between described mode switch element and power supply unit.
The technical scheme provided from the above embodiment of the present invention, luminescence unit is divided at least two groups by the lighting device of the embodiment of the present invention, optionally can export identical or different electric current to each group of luminescence unit, luminescence unit be sent irradiate light both can be consistent and also can have bright blindstory time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of lighting device in the embodiment of the present invention;
Fig. 2 is the sectional view of lighting device in the embodiment of the present invention;
Fig. 3 is the explosive view of power supply module in the embodiment of the present invention;
Fig. 4 is the explosive view of lighting device in another embodiment of the present invention;
Fig. 5 is the explosive view of lighting device in further embodiment of this invention.
Detailed description of the invention
The embodiment of the present invention provides a kind of lighting device.
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
In prior art may there is the problem of irradiating light and lacking bright blindstory time in lighting device, the invention provides a kind of lighting device solving foregoing problems, describe this lighting device in detail below in conjunction with accompanying drawing.
Shown in ginseng Fig. 1, lighting device 100 comprises housing 10, light source module 20, power supply module 30.
Housing 10 by the such as hard material such as plastics, metal preparation, can prepare the selection of material to ensure premised on its Stability Analysis of Structures.
Housing 10 comprises printing opacity face shield 11 and mounting seat 12, can be connected mutually therebetween by the various ways such as buckle, thread lock.
Printing opacity face shield 11 can be prepared by light-passing plastic, also can be prepared by glass material; Mounting seat 12 comprises buckle structure conventional in the industry or helicitic texture, for being mounted to the region such as body of wall, ceiling.
Shown in composition graphs 2 and Fig. 3, in the embodiment of the present invention, housing 10 inside forms a host cavity (non-label), after light source module 20 and power supply module 30 are electrically connected mutually, is co-located in described host cavity.Light source module 20 sends irradiation light after obtaining power supply module 30 output powers, irradiates light and arrives at irradiated object through printing opacity face shield 11.
In the embodiment of the present invention, light source module 20 comprises two groups of luminescence units, is the first luminescence unit group 21 and the second luminescence unit group 22 respectively.
First luminescence unit group 21 and the second luminescence unit group 22 are all obtained by several luminescence units of base plate carrying.Luminescence unit can be the photophore of LED or other types, and the first luminescence unit group 21 can be identical with the quantity of luminescence unit in the second luminescence unit group 22, also can be different, sets, do not repeat at this according to lighting demand.
Certainly, in other embodiments of the invention, light source module 20 also can comprise the luminescence unit of more groups, its structure and aforementioned similar, does not repeat at this.
In the embodiment of the present invention, light source module 20 also comprises the first lens 23 and the second lens 24, first lens 23 and the first luminescence unit group 21 and coordinates, and the second lens 24 and the second luminescence unit group 24 coordinate, and adjust corresponding luminescence unit group respectively and send irradiation light.
Certainly, in other embodiments of the invention, when light source module 20 comprises the luminescence unit of more groups, accommodation lens numbers.Even say, multi-group light-emitting unit also coordinates by same lens, only needs the size strengthening lens, makes it cover these luminescence units, do not repeat at this.
In the embodiment of the present invention, the first luminescence unit group 21 and the second luminescence unit group 22 all can be arranged to annular.Preferably, the first luminescence unit group 21 and the second luminescence unit group 22 form the different and concyclic heart of the radius of annulus.
Certainly, for coordinating the hobby of different user, the quantity also adaptability adjustment of luminescence unit group, each group luminescence unit also can be arranged as such as side's annular, triangle, hexagon, or any combination of former figures, and the shape of each group luminescence unit also can be inconsistent; Nested styles is not defined as between each group of luminescence unit, also can be side by side regular, even unordered layout.Such as, five groups of luminescence units can be arranged, it is all arranged as circle, and be arranged as Olympic Five Ring pattern and be mounted to again within lighting device.Or can arrange four groups of luminescence units, by the two groups of luminescence unit side of being configured to annulars, two groups of luminescence units are arranged as annular, are mounted within lighting device after being spaced by each group of luminescence unit again.
Can same shape be arranged to the lens corresponding to each group of luminescence unit, also can be arranged to difformity.Such as, the first luminescence unit group 21 is arranged to annular, then the first corresponding with it lens 23 can be configured to annular, also can the side's of being configured to annular, only needs each luminescence unit in guarantee first luminescence unit group 21 to be all typically covered by a lens.
In the embodiment of the present invention, the shape of the first lens 23 and the second lens 24 be configured such that the first luminescence unit group 21 being positioned at inner ring send and irradiate light diffusion, and make to be positioned at the second luminescence unit group 22 of outer shroud send and irradiate light and converge, make lighting device 100 send the brightness of irradiating light can be consistent.
Certainly, the shape of the cross sectional shape of the first lens 23 and the second lens 24, height and exiting surface or incidence surface all can be set as identical or different according to demand, does not repeat at this.
In the embodiment of the present invention, after power supply module 30 and light source module 20 are electrically connected, for powering to luminescence unit in light source module 20.
To comprise the first luminescence unit group 21 and the second luminescence unit group 22 in light source module 20, power supply module 30 is configured to export different electric current to the first luminescence unit groups 21 and the second luminescence unit group 22.
Because the first luminescence unit group 21 and the second luminescence unit group 22 obtain different electric currents, its luminous flux produced is also different, by adjusting the layout of the first luminescence unit group 21 and the second luminescence unit group 22, then can obtain the irradiation light of 2 levels in lighting device.
Such as, the first luminescence unit group 21 and the second luminescence unit group 22 are arranged to two annulus of the concyclic heart, when the first luminescence unit group 21 and the second luminescence unit group 22 obtain different electric currents, thus obtain stratified two bright rings of brightness.
Certainly, in other embodiments of the invention, when light source module 20 comprises the luminescence unit of more groups, power supply module 30 also can be configured to export different electric current to each group of luminescence unit, does not repeat at this.
Power supply module 30 comprises power supply 31, power supply management device 32, first supply line 33 and the second supply line 34.
In the embodiment of the present invention, power supply 31 can be dc source, also can be AC power, carries out adjusting according to the use scenes of lighting device.
Power supply 31 and the first supply line 32 and the second supply line 33 are electrically connected by power supply management device 32.Power supply 31 and the first luminescence unit group 21 are electrically connected by the first supply line 32; Power supply 31 and the second luminescence unit group 22 are electrically connected by the second supply line 33, realize the electric current of power supply 31 being exported to the first luminescence unit group 21 and the second luminescence unit group 22.
In the embodiment of the present invention, the first supply line 32 and the second supply line 33 are parallel with one another, can adjust current value in Liang Tiao supply line by power supply management device 32, realize exporting different electric current to the first luminescence unit groups 21 and the second luminescence unit group 22.
Power supply management device 32 can be distributing switch conventional in the industry, and its element consists of routine techniques in the industry, does not repeat at this.
Two annulus of the concyclic heart are still arranged to for the first luminescence unit group 21 and the second luminescence unit group 22, then by adjusting the current ratio of supply first luminescence unit group 21 and the second luminescence unit group 22, the brightness ratio of the first luminescence unit group 21 and the second luminescence unit group 22 also changes, specifically as shown in table 1.
| Electric current ratio | 1:2 | 1:1 | 4:3 | 2:1 | 4:1 |
| Brightness ratio | 1.12 | 0.72 | 0.61 | 0.49 | 0.36 |
Table 1
Certainly, in other embodiments of the invention, when light source module 20 comprises the luminescence unit of more groups, in power supply module 30, the quantity of supply line also does accommodation, by the control to each supply line's electric current, brightness between each group of luminescence unit can be realized equally there is level.
Shown in ginseng Fig. 4, in another embodiment of the present invention, compared with previous embodiment, difference is only: power supply module (non-label) comprising: two independently power supply 41a, 41b, two independently power supply management device 42a, 42b, two independently supply line 43a, 43b.
After power supply 41a, power supply management device 42a are connected successively with supply line 43a, be electrically connected with the first luminescence unit group 21, realize its power supply.
After power supply 41b, power supply management device 42b are connected successively with supply line 43b, be electrically connected with the first luminescence unit group 22, realize its power supply.
Because the first luminescence unit group 21 and the second luminescence unit group 22 are by different Power supplies, thus be easy to obtain different electric currents, aforementioned illuminating effect can be realized equally.
Shown in ginseng Fig. 5, in another embodiment of the present invention, compared with embodiment illustrated in fig. 3, difference is: power supply module 30, except comprising the power supply unit that is made up of power supply 31, power supply management device 32, first supply line 33 and the second supply line 34, also comprises mode switch element 35.
Only have an independently power supply 31 with power supply module 30, be respectively the first luminescence unit group 21 and the power supply of the second luminescence unit group 22 for example by the first supply line 33 and the second supply line 34, mode switch element 35 and power supply management device 32 are electrically connected.
In the embodiment of the present invention, power supply unit comprises the first powering mode and the second powering mode, and at the first powering mode, power supply management device 32 can control power supply 31 and export identical electric current in the first supply line 33 and the second supply line 34; Power supply management device 32 can control power supply 31 and export different electric currents in the first supply line 33 and the second supply line 34.
Mode switch element 35 switches between described first powering mode and the first powering mode for controlling power supply unit.
In the embodiment of the present invention, mode switch element 35 and power supply management device 32 are electrically connected, and it mode can send pattern switching command to power supply management device 32 manually or automatically.
Such as, mode switch element 35 can be one with the mechanical toggle of power supply management device 32 wired connection, by rotating toggle, power supply unit is switched between the first powering mode and the second powering mode, multiple supplied for electronic patterns that brightness ratio as described in Table 1 is different can also be segmented out among the second powering mode, do not repeat at this.
Certainly, mode switch element 35 can also by the mobile terminal with power supply management device 32 wireless connections, such as smart mobile phone or special remote control, adjusts the powering mode of power supply unit by user's preset mode switching push button on private client.
Even say, mode switch element 35 can also be positioned among lighting device 100 together with power supply unit, and it is by gathering ambient lighting environment light, and the use according to user is liked, and the powering mode of adjustment power supply unit, does not repeat at this automatically.
Luminescence unit is divided into many groups by the lighting device of the embodiment of the present invention, and exports different electric currents to each group of luminescence unit, and each group luminescence unit sends the irradiation light of different brightness, makes lighting device send irradiation light and has levels.
Each embodiment in this description all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
The foregoing is only embodiments of the invention, be not limited to the present invention.To those skilled in the art, the present invention can have various modifications and variations.All do within spirit of the present invention and principle any amendment, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (13)
1. a lighting device, is characterized in that, comprising:
Housing;
Light source module, is mounted to described housing, and described light source module comprises two groups of luminescence units;
Power supply module, is electrically connected with described light source module, and described power supply module is configured to export different electric currents to each group of luminescence unit.
2. lighting device as claimed in claim 1, it is characterized in that, described power supply module comprises power supply unit, and described power supply unit comprises a power supply, two groups of separate supply lines and connects the power supply management device of Liang Zu supply line and power supply; Often organize described supply line and one group of luminescence unit is electrically connected, described power supply management device is configured to control power supply and exports different electric currents to Ge Zu supply line.
3. lighting device as claimed in claim 1, it is characterized in that, described power supply module comprises power supply unit, and described power supply unit comprises two relatively independent power supplys and Liang Zu supply line, and each power supply is all electrically connected by one group of supply line and one group of luminescence unit.
4. lighting device as claimed in claim 3, it is characterized in that, described power supply unit comprises the power supply management device of connection two power supplys, and described power supply management device is configured to control two power supplys and exports different electric currents.
5. lighting device as claimed in claim 1, is characterized in that, it is that 1:2,4:3,2:1 or 4:1 electric current is to each group of luminescence unit that described power supply module is configured to export relative scale.
6. lighting device as claimed in claim 1, is characterized in that, described light source module comprises and the lens often organized luminescence unit and coordinates, and described lens are arranged to any combination of annular, just annular, triangle, hexagon or former figures.
7. lighting device as claimed in claim 1, is characterized in that, described two groups of luminescence units are arranged to any combination of the different annular of size, side annular, triangle, hexagon or former figures.
8. lighting device as claimed in claim 7, is characterized in that, described two groups of luminescence units are arranged to size difference and the annular of the concyclic heart.
9. lighting device as claimed in claim 8, it is characterized in that, described two groups of luminescence units comprise the first luminescence unit group being positioned at inner ring and the second luminescence unit group being positioned at outer shroud, described first luminescence unit group is configured to the irradiation light sending diffusion, and described second luminescence unit group is configured to the irradiation light sending convergence.
10. a lighting device, is characterized in that, comprising:
Housing;
Light source module, is mounted to described housing, and described light source module comprises at least two group luminescence unit and lens, often organizes luminescence unit and coordinates with same lens;
Power supply module, is electrically connected with described light source module, and described power supply module comprises:
Power supply unit, is electrically connected with each group of luminescence unit, and for outputing current to each group of luminescence unit, described power supply unit has the first powering mode and the second powering mode; At the first powering mode, described power supply unit exports same current to each group of luminescence unit, and at the second powering mode, described power supply unit exports different electric current to each group of luminescence unit;
Mode switch element, switches between described first powering mode and the first powering mode for controlling power supply unit.
11. lighting devices as claimed in claim 10, it is characterized in that, described power supply module comprises power supply unit, and described power supply unit comprises a power supply, two groups of separate supply lines and connects the power supply management device of Liang Zu supply line and power supply; Often organize described supply line and one group of luminescence unit is electrically connected, described power supply management device is configured to control power supply and exports similar and different electric current to Ge Zu supply line.
12. lighting devices as claimed in claim 10, it is characterized in that, described power supply module comprises power supply unit, described power supply unit comprises two relatively independent power supplys, Liang Zu supply line and connects the power supply management device of two power supplys, each power supply is all electrically connected by one group of supply line and one group of luminescence unit, and described power supply management device is configured to control two power supplys and exports similar and different electric current.
13. lighting devices as claimed in claim 9, is characterized in that, wireless or wired connection between described mode switch element and power supply unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698533.6A CN105179982B (en) | 2015-10-23 | 2015-10-23 | Lighting device |
| PCT/CN2016/102935 WO2017067512A1 (en) | 2015-10-23 | 2016-10-21 | Lens, light source module, and illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698533.6A CN105179982B (en) | 2015-10-23 | 2015-10-23 | Lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179982A true CN105179982A (en) | 2015-12-23 |
| CN105179982B CN105179982B (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510698533.6A Active CN105179982B (en) | 2015-10-23 | 2015-10-23 | Lighting device |
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| CN (1) | CN105179982B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067515A1 (en) * | 2015-10-23 | 2017-04-27 | 欧普照明股份有限公司 | Lens set, and lighting device employing lens set |
| WO2018068735A1 (en) * | 2016-10-11 | 2018-04-19 | 欧普照明股份有限公司 | Mounting base, connecting base, light source module, and lighting equipment |
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| CN201437974U (en) * | 2009-03-13 | 2010-04-14 | 陈式千 | Combined structure of LED light source and power supply interface |
| CN103069209A (en) * | 2010-09-09 | 2013-04-24 | 三菱化学株式会社 | Light emitting device, illuminating system, and illuminating method |
| CN204345445U (en) * | 2012-08-08 | 2015-05-20 | 松下知识产权经营株式会社 | Ligthing paraphernalia |
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| WO2017067515A1 (en) * | 2015-10-23 | 2017-04-27 | 欧普照明股份有限公司 | Lens set, and lighting device employing lens set |
| US10883699B2 (en) | 2015-10-23 | 2021-01-05 | Opple Lighting Co., Ltd. | Lens combination and illumination device adopting the same |
| WO2018068735A1 (en) * | 2016-10-11 | 2018-04-19 | 欧普照明股份有限公司 | Mounting base, connecting base, light source module, and lighting equipment |
| US10995942B2 (en) | 2016-10-11 | 2021-05-04 | Opple Lighting Co., Ltd. | Installation bottom base, connection base, light source module and lighting device |
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| Publication number | Publication date |
|---|---|
| CN105179982B (en) | 2018-07-31 |
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