CN202546429U - LED (Light Emitting Diode) bulb - Google Patents
LED (Light Emitting Diode) bulb Download PDFInfo
- Publication number
- CN202546429U CN202546429U CN2012201991084U CN201220199108U CN202546429U CN 202546429 U CN202546429 U CN 202546429U CN 2012201991084 U CN2012201991084 U CN 2012201991084U CN 201220199108 U CN201220199108 U CN 201220199108U CN 202546429 U CN202546429 U CN 202546429U
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- Prior art keywords
- light
- bulb
- led
- powder layer
- phosphor powder
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- Expired - Lifetime
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- 239000000843 powder Substances 0.000 claims abstract description 41
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 32
- 239000000758 substrate Substances 0.000 claims description 5
- 230000032683 aging Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000149 argon plasma sintering Methods 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides an LED (Light Emitting Diode) bulb. A light-scattering film is arranged on a light-emitting cover of the LED bulb; a partial blue light originally transmitted from the bulb is refracted and reflected to fluorescent powder by the light-scattering film, so as to excite the fluorescent powder; the proportion of the blue light in the emitted light is reduced while the proportion of the yellow light is increased, the color temperature is reduced and the lamp light is trended to warm-color light; the light is more uniform by using the fluorescent powder and the dead angle of the light is avoided; and a reinforcing layer is used for effectively preventing the fluorescent powder from dropping under the influences of the factors of high-temperature heating, aging, and the like, after the fluorescent powder is used for a long time, so that the service life of the whole bulb is prolonged.
Description
Technical field
The utility model provides a kind of LED bulb.
Background technology
LED is as a kind of novel solid light source; Have not only that power consumption is low, volume is little, response speed is fast, long working life, be easy to advantages such as light modulation toning, energy-conserving and environment-protective; All to surmount conventional light source such as incandescent lamp, fluorescent lamp greatly aspect its production, manufacturing, the ease for use; Therefore since being born the sixties, significant progress and application have been obtained.Multiple lighting fields such as street lighting, Landscape Lighting, large screen display, traffic lights, room lighting have been widely used at present; At present the LED bulb is to excite yellow fluorescent powder and get with blue light if will send method that opalesce adopts; Its concrete technology is with being coated to blue chip or going out the light shield surface after fluorescent material and the silica gel mixing; Through heating silica gel is solidified, promptly can be made into finished product, also have mix turnover light shield of fluorescent material inner.Yet these technologies remain in the use of reality in many problems, at first are the problems that the LED colour temperature is regulated.Fluorescent material is under the situation of Gd element that undopes; Cooperate suitable blue chip can access positive white light or the cold white light of colour temperature at 5000-6000K, this light ratio is more dazzling, is seeing very uncomfortable; If will obtain the milky warm white of 3000K left and right sides colour temperature, then need use the fluorescent material of doping Gd.Fluorescent material with the Gd that do not mix is compared, and the ageing resistace of this kind fluorescent material obviously reduces, and brightness obviously descends after long-time the use, and chromaticity coordinates obviously squints.The second, fluorescent material problem of aging.Because fluorescent material directly contacts with chip; Chip its temperature on every side when work can raise rapidly; The luminous efficiency of fluorescent material constantly descends owing to be heated as a result, and therefore chromaticity coordinates also can squint, and finally influences going out light effect and service life of LED device.In the LED potting process, because the density of fluorescent material is much larger than silica gel density, deposition very easily, and the variable thickness of some glue on the single chip, the photochromism that occurs encapsulating out LED at last is inhomogeneous, the phenomenon that the fraction defective of production is higher.Three, the light distribution of whole exiting surface is inhomogeneous, and the center light intensity is the strongest, dies down gradually extremely all around along the center.Four, price is higher, is several times or tens times of ordinary incandescent lamp price.Wherein, the cost of chip accounts for 70% of entire device, though the service life of chip is longer, chip just is difficult to reclaim after packaged silica gel of blue chip and fluorescent material, and the damage of fluorescent material will cause the damage of entire device.Also have else to be outside equipped with lens, but lens only play a protective role or light beam is simply expanded bundle, do not solve question of substance at silica gel.
The utility model content
The utility model technical problem to be solved provides a kind of LED bulb, and this LED bulb has improved the blue light service efficiency that chip sends, and has reduced colour temperature, in fluorescent material, does not mix under the situation of Gd and can send the milky light of colour temperature about 3000K.
The technical scheme that the utility model technical solution problem is adopted is: this LED bulb comprises the LED blue chip that is installed on the substrate, goes out light shield and phosphor powder layer, goes out on the light shield also to be provided with light-diffusing film said.To phosphor powder layer, excitated fluorescent powder sends gold-tinted to the blue light that light-diffusing film transmits bulb originally with a part, in the light that sends, has reduced in the blue light ratio, has increased the ratio of gold-tinted, the reduction colour temperature through refraction and reflected illumination.
Said phosphor powder layer is arranged at the said inboard that goes out light shield, and said light-diffusing film is arranged at said phosphor powder layer and said and goes out between the light shield.
Also be provided with back-up coat in the said inboard that goes out light shield, said phosphor powder layer and light-diffusing film are arranged at out between light shield and the back-up coat, and back-up coat prevents the disengaging of being heated of phosphor powder layer and light-diffusing film, pollutes the LED blue chip.
Said phosphor powder layer is arranged at the said outside that goes out light shield, and said light-diffusing film is arranged at the outside of said phosphor powder layer.
In the said arranged outside that goes out light shield back-up coat is arranged, said phosphor powder layer and light-diffusing film are arranged at out between light shield and the back-up coat.
Said phosphor powder layer is arranged at the said inner surface that goes out light shield, and said light-diffusing film is arranged at the said outer surface that goes out light shield.
All be provided with back-up coat in the said outside and the inboard that goes out light shield, said phosphor powder layer and said light-diffusing film are arranged at respectively and saidly go out between light shield and the said back-up coat.
The beneficial effect of the utility model is: this LED bulb has been introduced light-diffusing film in a creative way; Can improve the service efficiency of the blue light that led chip sends; With traditional LED compared with techniques, when the device of the identical colour temperature of preparation, can avoid the use of the fluorescent material that mixes Gd; Improve the ageing resistace of device, reduced the long-time color coordinate drift degree of using the back device.The service efficiency of blue light increases, excitated fluorescent powder more fully can reduce the addition of fluorescent material, and it is aging and the influence that brings reduces cost again simultaneously to have reduced fluorescent material; The appearance color of device no longer only by the decision of the appearance color of fluorescent material, can send the milky light that more meets people's visual custom, makes that people's feel more comfortable; Light-diffusing film can make rising angle bigger, and light is more even, has widened illumination range, has avoided the light dead angle.Back-up coat can prevent phosphor powder layer and light-diffusing film effectively after long-time the use, because high-temperature heating, factor such as wear out come off to the pollution of LED blue chip, has prolonged the service life of whole bulb.Also can not influence the LED blue chip even fluorescent material is aging, only need change out light shield, the LED blue chip is reusable, has significantly reduced loss.
Description of drawings
Fig. 1 is the structural representation of the utility model LED bulb.
Fig. 2 is the another kind of structural representation of the utility model LED bulb.
Fig. 3 is the third structural representation of the utility model LED bulb.
The specific embodiment
This LED bulb comprises the LED blue chip 2, the phosphor powder layer 3 that are installed on the substrate 1, goes out light shield 4 and light-diffusing film 5, go out light shield 4 near a side of LED blue chip 2 for inboard.Shown in Figure 1 for phosphor powder layer 3 and light-diffusing film 5 being arranged at out the inboard of light shield 4.LED blue chip 2 is sent blue ray; Fluorescent material in the blue-light excited phosphor powder layer 3 of a part sends sodium yellow, and when light-diffusing film 5 was not set, blue light passed phosphor powder layer 3 greatly; Form positive white light or the cold white light of colour temperature at 5000-6000K with the sodium yellow stack, this light ratio is more dazzling.After light-diffusing film 5 was set, a part of blue light did not have direct irradiation to go out through the reflection and the refraction of light-diffusing film 5, and with the fluorescent material effect, excitated fluorescent powder sends sodium yellow in phosphor powder layer 3.Like this; The blue light ratio that direct irradiation is gone out reduces, with the blue light ratio increase of fluorescent material effect, therefore in irradiating the light of bulb; The sodium yellow ratio increases; Just form colour temperature milky warm white about 3000K after two kinds of light stacks this moment, and this light is not dazzling, more meets people's visual custom.And the use amount of fluorescent material does not increase, the Gd that also need not mix, and the cost of light-diffusing film 5 is much lower by contrast, and under the situation of sending identical colour temperature light, cost reduces, and ageing resistace improves.Simultaneously, LED blue chip 2 is luminous to be that the middle part is strong after all, a little less than the edge; But because the reflection and the refraction action of 5 pairs of light of light-diffusing film, the part in the light of middle part is flooded to bulb edge part, or by light-diffusing film 5 reflected back substrates 1; Reflex to the marginal portion once more through substrate 1; Make each position bright dipping of whole bulb more even, do not have obvious strong point and blind spot, light is softer.Because the LED bulb can produce heat when luminous, the temperature that goes out light shield 4 can raise, because factor such as expand with heat and contract with cold; The adhesive force of phosphor powder layer 3 and light-diffusing film 5 can be affected; Come off, back-up coat 6 prevents that phosphor powder layer 3 and light-diffusing film 5 from coming off, and protection LED blue chip 2 is not contaminated.
As shown in Figure 2, according to different production technology, phosphor powder layer 3 and light-diffusing film 5 can also be arranged at out the outer surface of light shield 4.Back-up coat 6 is arranged at outermost, and back-up coat 6 quality are relatively hard, prevents that external force from falling 5 strokes of phosphor powder layer 3 and light-diffusing films and influence light effect.
As shown in Figure 3, another kind of scheme is the inner surface that phosphor powder layer 3 is arranged at out light shield 4, and light-diffusing film 5 is arranged at out the outer surface of light shield 4, in order to protect phosphor powder layer 3 and light-diffusing film 5 simultaneously, all is provided with back-up coat 6 in the inboard that goes out light shield 4 and the outside.
Claims (7)
1.LED bulb comprises the LED blue chip (2) that is installed on the substrate (1), goes out light shield (4) and phosphor powder layer (3), it is characterized in that: go out on the light shield (4) also to be provided with light-diffusing film (5) said.
2. according to the said LED bulb of claim 1, it is characterized in that: said phosphor powder layer (3) is arranged at the said inboard that goes out light shield (4), and said light-diffusing film (5) is arranged at said phosphor powder layer (3) and said and goes out between the light shield (4).
3. according to the said LED bulb of claim 2, it is characterized in that: also be provided with back-up coat (6) in the said inboard that goes out light shield (4), said phosphor powder layer (3) and light-diffusing film (5) are arranged at out between light shield (4) and the back-up coat (6).
4. according to the said LED bulb of claim 1, it is characterized in that: said phosphor powder layer (3) is arranged at the said outside that goes out light shield (4), and said light-diffusing film (5) is arranged at the outside of said phosphor powder layer (3).
5. according to the said LED bulb of claim 4, it is characterized in that: in the said arranged outside that goes out light shield (4) back-up coat (6) is arranged, said phosphor powder layer (3) and light-diffusing film (5) are arranged at out between light shield (4) and the back-up coat (6).
6. according to the said LED bulb of claim 1, it is characterized in that: said phosphor powder layer (3) is arranged at the said inner surface that goes out light shield (4), and said light-diffusing film (5) is arranged at the said outer surface that goes out light shield (4).
7. according to the said LED bulb of claim 6; It is characterized in that: all be provided with back-up coat (6) in the said outside and the inboard that goes out light shield (4), said phosphor powder layer (3) and said light-diffusing film (5) are arranged at respectively and saidly go out between light shield (4) and the said back-up coat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201991084U CN202546429U (en) | 2012-05-04 | 2012-05-04 | LED (Light Emitting Diode) bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201991084U CN202546429U (en) | 2012-05-04 | 2012-05-04 | LED (Light Emitting Diode) bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202546429U true CN202546429U (en) | 2012-11-21 |
Family
ID=47167059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201991084U Expired - Lifetime CN202546429U (en) | 2012-05-04 | 2012-05-04 | LED (Light Emitting Diode) bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202546429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972221A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging structure and method |
| CN106287337A (en) * | 2016-09-27 | 2017-01-04 | 深圳市影歌科技有限公司 | A kind of illuminator improving white light LEDs colour developing quality |
-
2012
- 2012-05-04 CN CN2012201991084U patent/CN202546429U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972221A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging structure and method |
| CN106287337A (en) * | 2016-09-27 | 2017-01-04 | 深圳市影歌科技有限公司 | A kind of illuminator improving white light LEDs colour developing quality |
| CN106287337B (en) * | 2016-09-27 | 2019-01-15 | 深圳市爱图仕影像器材有限公司 | A kind of lighting device improving white light LEDs colour developing quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611731 Sichuan city of Chengdu province high tech Zone (West) New Road No. 2 Patentee after: Sichuan Sunfor Light Co., Ltd. Address before: 611731 Sichuan city of Chengdu province high tech Zone (West) New Road No. 2 Patentee before: Sichuan Sunfor Lighting Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED bulb mounting method of plastic-absorption decoration lamp Effective date of registration: 20140930 Granted publication date: 20121121 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd Chinese Sichuan Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2014510000025 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150401 Granted publication date: 20121121 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd Chinese Sichuan Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2014510000025 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED bulb mounting method of plastic-absorption decoration lamp Effective date of registration: 20150403 Granted publication date: 20121121 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd Chinese Sichuan Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2015510000012 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170814 Granted publication date: 20121121 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd Chinese Sichuan Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2015510000012 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED bulb mounting method of plastic-absorption decoration lamp Effective date of registration: 20180206 Granted publication date: 20121121 Pledgee: Sichuan energy investment Refco Group Ltd Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2018510000013 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190402 Granted publication date: 20121121 Pledgee: Sichuan energy investment Refco Group Ltd Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2018510000013 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED bulb mounting method of plastic-absorption decoration lamp Effective date of registration: 20190408 Granted publication date: 20121121 Pledgee: Sichuan energy investment Refco Group Ltd Pledgor: Sichuan Sunfor Light Co., Ltd. Registration number: 2019510000043 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |