CN208871526U - A kind of LED filament and its LED filament lamp of adjustable color - Google Patents
A kind of LED filament and its LED filament lamp of adjustable color Download PDFInfo
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- CN208871526U CN208871526U CN201821364787.XU CN201821364787U CN208871526U CN 208871526 U CN208871526 U CN 208871526U CN 201821364787 U CN201821364787 U CN 201821364787U CN 208871526 U CN208871526 U CN 208871526U
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- 239000000758 substrate Substances 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 54
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000919 ceramic Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 5
- 229910052594 sapphire Inorganic materials 0.000 claims description 4
- 239000010980 sapphire Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000307 polymer substrate Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 8
- 230000003760 hair shine Effects 0.000 description 7
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides the LED filament and its LED filament lamp of a kind of adjustable color, including substrate and at least two groups LED chip group being fixed on the substrate, the LED chip group includes multiple LED chips, it is connected in parallel between the LED chip group, the overall presure drop of different LED chip groups is different, and the phosphor powder layer of different-colour is coated in different LED chip groups.Pass through the different LED chip group in parallel of setting at least two groups pressure drop, and the phosphor powder layer of different-colour is respectively coated, when passing through different size electric current, the light of different-colour can be issued, the light that different colour temperatures can be issued under different electric current drivings is realized, user can control required colour temperature and brightness according to a dimmer switch.Using the filament lamp of the LED filament of the utility model, the not increase of cost in structure and driving can meet the different-colour demand of different user.
Description
Technical field
The utility model relates to arrive lighting technical field, more particularly to the LED filament and its LED light of a kind of adjustable color
Silk lamp.
Background technique
The appearance of tungsten lamp of 19th century leads the whole world to come into the artificial light epoch.Occur from 20th century revolutionary
New light sources-LED, by feat of energy conservation and environmental protection, the advantages that service life is long, becomes much more popular rapidly illumination market, LED at the following mainstream photograph
Mingguang City source is widely used in commercial lighting, industrial lighting, outdoor lighting etc..But previous LED light source, as plug-in unit LED, patch
Piece LED, COB(Chip On Board, chip on board encapsulation), the LED lamp beads such as integrated high-power, in the light that lens etc are not added
It all can only be planar light source in the case of learning device.
2008, Japanese oxtail light source was released with the bulb-type lamps and lanterns of incandescent lamp prototype configuration LED filament." LED filament
The appearance of lamp " really realizes 360 degree of full angle light-emitting 3 D light sources, meets the luminous demand of client's full view, brings preceding institute
The lighting experience that does not have and more energy saving.Take the lead in releasing simultaneously volume production from Japanese oxtail light source, using LED filament as the candle of light source
The gradually favor by more and more consumer on the market of the products such as lamp, bulb lamp.
Led filament is applied on the lamp of various shapes with its distinctive shape and good illumination effect, but
LED filament on the market is all single colour temperature at present, is not adjustable colour temperature generally, when user needs to carry out colour temperature tune to light
When section, existing LED filament is not able to satisfy the requirement of user.
In order to solve this problem, the Chinese patent that notification number is CN 207350041U by by the first LED light emitting array and
The different fluorescent colloids for being mixed with different proportion are respectively coated in 2nd LED light emitting array, and are adjusted by adjustable driving power
The colour temperature of the first LED light emitting array and the 2nd LED light emitting array is saved, to realize the change and adjusting of colour temperature.But the program
In adjustable driving power structure is complicated, need two switches to control the first LED light emitting array and the 2nd LED light-emitting array respectively
Column, and the setting of LED light emitting array is also very complicated.
Notification number provides a kind of LED colour temperature adjusts circui for the Chinese patent of CN105979625B, passes through a current stabilization
Unit exports stable current value, is two load branch power supplies；By control unit control respectively with two load branch strings
Two switching tubes of connection make the complementary duty cycle of two switching tubes, and change the current stabilization list by the control to duty ratio
Ratio of the output electric current of member in two load branch, to realize the change of whole colour temperature.But the program also needs
For two switches to control, circuit design is relatively complicated.
Therefore, the existing technology needs to be improved and developed.
Utility model content
The purpose of this utility model is that not changing existing LED filament lamp on the basis of existing LED filament lamp
Foundation structure not in the case where extra circuits design cost etc., has supplied the LED filament and its filament of a kind of adjustable color
Lamp can be directly used for existing filament lamp, cooperate the power supply of existing tunable optical, meet the requirement of user's different-colour.
To solve the above problems, the technical solution of the utility model is as follows:
A kind of LED filament of adjustable color, including substrate and at least two groups LED chip being fixed on the substrate
Group, the LED chip group include multiple LED chips, are connected in parallel between the LED chip group, the stagnation pressure of different LED chip groups
Drop is different, and the phosphor powder layer of different-colour is coated in different LED chip groups.
The LED filament of the adjustable color, wherein the LED core chip size and/or quantity of the difference LED chip group
It is different.
The LED filament of the adjustable color, wherein multiple LED chips of the LED chip group are connected or connected in series and parallel
It connects.
The LED filament of the adjustable color, wherein the substrate be sapphire substrate, glass substrate, ceramic substrate,
Any one of high polymer substrate or metal substrate.
The LED filament of the adjustable color, wherein the substrate is single substrate or more parallel-connection structure substrates.
The LED filament of the adjustable color, wherein the phosphor powder layer be silica gel and fluorescent powder or epoxy resin with
The mixture of fluorescent powder.
A kind of LED filament lamp of adjustable color, wherein with adjustable color as described above LED filament and with it is described
The dimmer switch for being used to adjust size of current of LED filament electrical connection.
The beneficial effects of the utility model include: that the utility model provides the LED filament and its LED of a kind of adjustable color
By the different LED chip group in parallel of setting at least two groups pressure drop, and the fluorescent powder of different-colour is respectively coated in filament lamp
Layer can issue the light of different-colour when passing through different size electric current, and realizing can send out under different electric current drivings
The light of different colour temperatures out, user can control required colour temperature and brightness according to a dimmer switch.It is practical using this
The filament lamp of novel LED filament, the not increase of cost, can meet the difference of different user in structure and driving
Colour temperature demand.
Detailed description of the invention
Fig. 1 is the front view of first embodiment provided by the utility model.
Fig. 2 is the side view of first embodiment provided by the utility model.
Fig. 3 is the front view of second embodiment provided by the utility model.
Fig. 4 is the side view of second embodiment provided by the utility model.
Fig. 5 is the front view of 3rd embodiment provided by the utility model.
Fig. 6 is the side view of 3rd embodiment provided by the utility model.
Fig. 7 is the front view of fourth embodiment provided by the utility model.
Fig. 8 is the side view of fourth embodiment provided by the utility model.
Description of symbols: 100, the first metal substrate；110, the first LED chip group；120, the second LED chip group；
130, the first electric connection line；140, the first phosphor powder layer；150, the second phosphor powder layer；200, the first ceramic substrate；210, third
LED chip group；220, the 4th LED chip group；230, the second electric connection line；240, third phosphor powder layer；250, the 4th fluorescent powder
Layer；300, the second metal substrate；310, the 5th LED chip group；320, the 6th LED chip group；330, third electric connection line；340,
5th phosphor powder layer；350, the 6th phosphor powder layer；400, the second ceramic substrate；410, the 7th LED chip group；420, the 8th LED
Chipset；430, the 9th LED chip group；440, the 4th electric connection line；450, the 7th phosphor powder layer；460, the 8th phosphor powder layer；
470, the 9th phosphor powder layer.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In the description of the present invention, it should be noted that
Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixed
Connection, may be a detachable connection, or be integrally connected；Can be mechanical connection, be also possible to electrical connection or can be mutual
Communication；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
First embodiment:
Fig. 1-Fig. 2 is participated in, is first embodiment provided by the utility model.In the first embodiment, the adjustable color
LED filament include the first metal substrate 100, the first metal substrate 100 is the parallel metal substrate of double joint, in the first metal
Two groups of LED chip groups being connected in parallel are fixedly installed on substrate 100, two groups of LED chip groups are by multiple LED chips through first
Electric connection line 130 is connected in series, respectively the first LED chip group 110 and the second LED chip group 120.Wherein, the first LED chip
The LED chip of group 110 is the LED chip of smaller size, and the quantity of LED chip is 23.The LED of second LED chip group 120
Chip is the LED chip of larger size, and the quantity of LED chip is 25.Then the overall presure drop of the first LED chip group 110 is than
The overall presure drop of two LED chip groups 120 wants low.When driving power is low current, electric current mainly passes through the first LED chip group 110,
Then the first LED chip group 110 shines, and 120 glimmer of the second LED chip group or does not work.When driving power is high current, electric current master
It to be shone by the second LED chip group 120, the second LED chip group 120,110 glimmer of the first LED chip group.Referring to fig. 2,
It is coated with the first phosphor powder layer 140 in one LED chip group 110, the second phosphor powder layer is coated in the second LED chip group 120
150.First phosphor powder layer 140 is the phosphor powder layer of low color temperature, and the second phosphor powder layer 150 is the phosphor powder layer of high color temperature.As a result,
The switch for only needing an adjusting size of current, can adjust the colour temperature of the LED filament.In this embodiment, the colour temperature
Under ascending electric current driving, the colour temperature that 2000K to 6000K may be implemented gradually changes adjustable LED filament.Another party
It is glimmering to coat first if coating the second phosphor powder layer 150 in the first LED chip group 110 in the second LED chip group 120 for face
Light bisque 140, then under ascending electric current driving, the colour temperature that 6000K to 2000K may be implemented is gradually changed.
Second embodiment:
It is second embodiment provided by the utility model referring to Fig. 3 and Fig. 4.In a second embodiment, the adjustable color
LED filament include the first ceramic substrate 200, the first ceramic substrate 200 be single ceramic substrate, in the first ceramic substrate
Two groups of LED chip groups being connected in parallel are fixedly installed on 200, two groups of LED chip groups are electrically connected by multiple LED chips through second
Wiring 230 is connected in series, respectively third LED chip group 210 and the 4th LED chip group 220.Wherein, third LED chip group
210 LED chip is the LED chip of smaller size, and the quantity of LED chip is 23.The LED core of 4th LED chip group 220
Piece is the LED chip of larger size, and the quantity of LED chip is 25.Then the overall presure drop of third LED chip group 210 is than the 4th
The overall presure drop of LED chip group 220 wants low.When driving power is low current, electric current mainly passes through third LED chip group 210, then
Third LED chip group 210 shines, and 220 glimmer of the 4th LED chip group or does not work.When driving power is high current, electric current is main
By the 4th LED chip group 220, the 4th LED chip group 220 shines, 210 glimmer of third LED chip group.Referring to fig. 4, in third
It is coated with third phosphor powder layer 240 in LED chip group 210, the 4th phosphor powder layer is coated in the 4th LED chip group 220
250.Third phosphor powder layer 240 is the phosphor powder layer of low color temperature, and the 4th phosphor powder layer 250 is the phosphor powder layer of high color temperature.As a result,
The switch for only needing an adjusting size of current, can adjust the colour temperature of the LED filament.In this embodiment, the colour temperature
Under ascending electric current driving, the colour temperature that 2000K to 6000K may be implemented gradually changes adjustable LED filament.Another party
It is glimmering to coat third if coating the 4th phosphor powder layer 250 in third LED chip group 210 in the 4th LED chip group 220 for face
Light bisque 240, then under ascending electric current driving, the colour temperature that 6000K to 2000K may be implemented is gradually changed.
3rd embodiment:
It referring to figs. 5 and 6, is 3rd embodiment provided by the utility model.In the third embodiment, the adjustable color
LED filament include the second metal substrate 300, the second metal substrate 300 be it is double and metal substrates, in the second metal substrate
Two groups of LED chip groups being connected in parallel are fixedly installed on 300, two groups of LED chip groups are electrically connected by multiple LED chips through third
Wiring 330 is connected in series, respectively the 5th LED chip group 310 and the 6th LED chip group 320.Wherein, the 5th LED chip group
310 and the 6th LED chip group 320 LED chip be same model LED chip, but the LED of the 5th LED chip group 310
The quantity of chip is 24, and the quantity of the LED chip of the 6th LED chip group 320 is 25.Then the 5th LED chip group 310
Overall presure drop is lower than the overall presure drop of the 6th LED chip group 320.When driving power is low current, electric current mainly passes through the 5th LED
Chipset 310, then the 5th LED chip group 310 shines, and 320 glimmer of the 6th LED chip group or does not work.When driving power is big electricity
When stream, electric current mainly passes through the 6th LED chip group 320, and the 6th LED chip group 320 shines, 310 glimmer of the 5th LED chip group.
Referring to Fig. 6, it is coated with the 5th phosphor powder layer 340 in the 5th LED chip group 310, is coated in the 6th LED chip group 320
6th phosphor powder layer 350.5th phosphor powder layer 340 is the phosphor powder layer of low color temperature, and the 6th phosphor powder layer 350 is the glimmering of high color temperature
Light bisque.Thus, it is only necessary to which the switch of an adjusting size of current can adjust the colour temperature of the LED filament.In the embodiment
In, the colour temperature of 2000K to 6000K may be implemented gradually under ascending electric current driving in the LED filament of the adjustable color
Variation.On the other hand, if the 6th phosphor powder layer 350 is coated in the 5th LED chip group 310, in the 6th LED chip group 320
The colour temperature of 6000K to 2000K may be implemented gradually then under ascending electric current driving in the 5th phosphor powder layer 340 of upper coating
Variation.
Fourth embodiment:
It referring to figs. 7 and 8, is fourth embodiment provided by the utility model.In the fourth embodiment, the adjustable color
LED filament include the second ceramic substrate 400, the second ceramic substrate 400 be single ceramic substrate, in the second ceramic substrate
Three groups of LED chip groups being connected in parallel are fixedly installed on 400, three groups of LED chip groups are electrically connected by multiple LED chips through the 4th
Wiring 440 is connected in series, respectively the 7th LED chip group 410, the 8th LED chip group 420 and the 9th LED chip group 430.Its
In, the LED chip of the 7th LED chip group 410 is the LED chip of smaller size, and the quantity of LED chip is 23.8th LED
The LED chip of chipset 420 is the LED chip of smaller size, and the quantity of LED chip is 24.9th LED chip group 430
LED chip be larger size LED chip, and the quantity of LED chip be 25.The then overall presure drop of the 7th LED chip group 410
Overall presure drop than the 8th LED chip group 420 is low, and the overall presure drop of the 8th LED chip group 420 is more total than the 9th LED chip group 430
Pressure drop wants low.When driving power is minimum current, electric current mainly passes through the 7th LED chip group 410, then the 7th LED chip group
410 shine, and the 8th LED chip group 420 and 430 glimmer of the 9th LED chip group or do not work.When driving power is medium suitable current
When, electric current mainly passes through the 8th LED chip group 420, then the 8th LED chip group 420 shines, the 7th LED chip group 410 and the 9th
430 glimmer of LED chip group does not work.When driving power is high current, electric current mainly passes through the 9th LED chip group 430, and the 9th
LED chip group 430 shines, and the 7th LED chip group 410 and 420 glimmer of the 8th LED chip group or does not work.Referring to Fig. 8, the 7th
It is coated with the 7th phosphor powder layer 450 in LED chip group 410, the 8th phosphor powder layer is coated in the 8th LED chip group 420
460, the 9th phosphor powder layer 470 is coated in the 9th LED chip group 430.7th phosphor powder layer 450 is the fluorescent powder of low color temperature
Layer, the 8th phosphor powder layer 460 are the phosphor powder layer of neutral color temperature, and the 9th phosphor powder layer 470 is the phosphor powder layer of high color temperature.As a result,
The switch for only needing an adjusting size of current, can adjust the colour temperature of the LED filament.In this embodiment, the colour temperature
Under ascending electric current driving, the colour temperature that 2000K to 6000K may be implemented gradually changes adjustable LED filament.Another party
It is glimmering to coat the 7th if coating the 9th phosphor powder layer 470 in the 7th LED chip group 410 in the 9th LED chip group 430 for face
Light bisque 450, then under ascending electric current driving, the colour temperature that 6000K to 2000K may be implemented is gradually changed.
In practical applications, as shown in above four embodiments, the LED core chip size of the difference LED chip groups and/or
Quantity is different, to realize that different LED chip groups have different overall presure drops.
In practical applications, the LED chip group can also be connected in series and parallel by multiple LED chips.
Preferably, the substrate is in sapphire substrate, glass substrate, ceramic substrate, high polymer substrate or metal substrate
It is any.It can be used to implement 4 π luminous LED light when selecting transparent sapphire substrate, glass substrate or ceramic substrate
Silk, is advantageously implemented the rapid cooling of LED filament when using metal substrate.
In practical applications, the substrate is single substrate or more parallel-connection structure substrates, such as in first embodiment and the
It is double substrates simultaneously used in three embodiments, and used in second embodiment and fourth embodiment is then single substrate.
In actual production, the phosphor powder layer is the mixture of silica gel and fluorescent powder or epoxy resin and fluorescent powder.
The utility model additionally provides a kind of LED filament lamp of adjustable color, wherein has adjustable color as described above
LED filament and be electrically connected with the LED filament for adjusting the dimmer switch of size of current.The LED filament lamp its
His structure is identical as existing LED filament lamp, and only more dimmer switch, structure and circuit are substantially unchanged, but real
The adjusting of colour temperature is showed.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (7)
1. a kind of LED filament of adjustable color, which is characterized in that including substrate and at least two groups being fixed on the substrate
LED chip group, the LED chip group include multiple LED chips, are connected in parallel between the LED chip group, different LED chips
The overall presure drop of group is different, and the phosphor powder layer of different-colour is coated in different LED chip groups.
2. the LED filament of adjustable color according to claim 1, which is characterized in that the LED of the difference LED chip group
Chip size and/or quantity are different.
3. the LED filament of adjustable color according to claim 2, which is characterized in that multiple LED of the LED chip group
Chip-in series or series-parallel connection.
4. the LED filament of adjustable color according to claim 1, which is characterized in that the substrate is sapphire substrate, glass
Any one of glass substrate, ceramic substrate, high polymer substrate or metal substrate.
5. the LED filament of adjustable color according to claim 4, which is characterized in that the substrate is single substrate or more
Root parallel-connection structure substrate.
6. the LED filament of adjustable color according to claim 1, which is characterized in that the phosphor powder layer be silica gel with it is glimmering
The mixture of light powder or epoxy resin and fluorescent powder.
7. a kind of LED filament lamp of adjustable color, which is characterized in that have colour temperature as claimed in any one of claims 1 to 6
Adjustable LED filament and the dimmer switch for being used to adjust size of current being electrically connected with the LED filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364787.XU CN208871526U (en) | 2018-08-23 | 2018-08-23 | A kind of LED filament and its LED filament lamp of adjustable color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364787.XU CN208871526U (en) | 2018-08-23 | 2018-08-23 | A kind of LED filament and its LED filament lamp of adjustable color |
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| Publication Number | Publication Date |
|---|---|
| CN208871526U true CN208871526U (en) | 2019-05-17 |
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| CN201821364787.XU Active CN208871526U (en) | 2018-08-23 | 2018-08-23 | A kind of LED filament and its LED filament lamp of adjustable color |
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| CN110388612A (en) * | 2019-07-02 | 2019-10-29 | 浙江阳光美加照明有限公司 | Color temperature-tunable LED light strand and the LED filament lamp for using the LED light strand |
| CN110486666A (en) * | 2019-07-12 | 2019-11-22 | 海洋王照明科技股份有限公司 | Aircraft assisted illuminating lamp |
| US10950585B2 (en) | 2019-03-18 | 2021-03-16 | Intematix Corporation | Tunable LED-filaments and tunable LED-filament lamps |
| WO2021136708A1 (en) * | 2020-01-02 | 2021-07-08 | Signify Holding B.V. | Lighting device |
| WO2021224134A1 (en) * | 2020-05-07 | 2021-11-11 | Signify Holding B.V. | An led filament and a lamp |
| US11342311B2 (en) | 2019-03-18 | 2022-05-24 | Intematix Corporation | LED-filaments and LED-filament lamps utilizing manganese-activated fluoride red photoluminescence material |
| WO2022214429A1 (en) | 2021-04-06 | 2022-10-13 | Signify Holding B.V. | Led filament arrangement |
| WO2022268500A1 (en) * | 2021-06-25 | 2022-12-29 | Signify Holding B.V. | Led filament arrangement |
| US11631792B2 (en) | 2019-03-18 | 2023-04-18 | Intematix Corporation | Packaged white light emitting devices comprising photoluminescence layered structure |
| US11781714B2 (en) | 2019-03-18 | 2023-10-10 | Bridgelux, Inc. | LED-filaments and LED-filament lamps |
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