CN103883956A - Light source and LED car lamp with same - Google Patents
Light source and LED car lamp with same Download PDFInfo
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- CN103883956A CN103883956A CN201210565363.0A CN201210565363A CN103883956A CN 103883956 A CN103883956 A CN 103883956A CN 201210565363 A CN201210565363 A CN 201210565363A CN 103883956 A CN103883956 A CN 103883956A
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- light
- led
- collecting portion
- light source
- shielding part
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Abstract
A light source comprises an LED packaging structure and an optical fiber coupled with the LED packaging structure. A light collection portion is formed at the tail end of the optical fiber and contains fluorescent powder, light emitted from the LED packaging structure is conducted to the light collection portion through the optical fiber and triggers the fluorescent powder in the light collection portion to be mixed and form white light. The invention further relates to an LED car lamp with the light source. Compared with the prior art, the LED car lamp with the light source transfers the fluorescent powder in the LED packaging structure to the light collection portion, and impact on the fluorescent powder in the LED packaging structure from heat radiated from the same is avoided, so that stability of the fluorescent powder is better. Light emitted from the LED packaging structure is conducted to the light collection portion through the optical fiber and triggers the fluorescent powder in the light collection portion to be mixed and form white light, so that emitted light rays of the LED car lamp is more uniform in chromaticity.
Description
Technical field
The present invention relates to a kind of light source and has the LED light fixture of this light source, particularly relates to a kind of light source and has the LED automobile lamp cap structure of this light source.
Background technology
LED(light emitting diode) be a kind of semiconductor element that current conversion can be become to the light of particular range of wavelengths, rely on the advantages such as its luminous efficiency is high, volume is little, lightweight, environmental protection, be widely applied in the middle of current every field.
Utilize LED to generally comprise a LED light source, reflective hood, light shielding part and projection lens as the Vehicle lamp structure of illuminator.The encapsulated layer that LED light source comprises LED chip and covers this LED chip and contain fluorescent material, the blue light that this LED chip sends exciting of yellow fluorescent powder in encapsulated layer converts white light to, white light converges through light shielding part and is adjusted into a default light type after reflective hood reflection, and then is distributed to the external world by projection lens correction.Because the blue light of LED light source outgoing is along angular distribution, and be positioned at the intensity difference of the corresponding emergent ray of different angles, fluorescent material in encapsulated layer is subject to the impact of LED light source distribute heat simultaneously, stability is not good, cause the white light colourity after conversion inhomogeneous, and then it is partially yellow to make to be distributed to extraneous light part from projection lens, affect the light effect that of car light.Therefore, need further improve.
Summary of the invention
In view of this, be necessary to provide a kind of emergent ray colourity uniform LED car light.
A kind of light source, comprise LED encapsulating structure, described light source also comprises the optical fiber being of coupled connections with described LED encapsulating structure, described optical fiber connector forms light collecting portion, in described light collecting portion, include fluorescent material, the light of described LED encapsulating structure outgoing to described light collecting portion, and forms white light after exciting fluorescent material in described light collecting portion to mix through fiber optic conduction.
A kind of LED car light, comprise light source, light shielding part and projection lens, light shielding part is between light source and projection lens, the optical fiber that described light source comprises LED encapsulating structure and is of coupled connections with described LED encapsulating structure, described optical fiber connector forms a light collecting portion, described light collecting portion includes fluorescent material, the light of described LED encapsulating structure outgoing is through extremely described light collecting portion of fiber optic conduction, and excite the fluorescent material in described light guide section to mix the rear white light that forms, wear the white light being mixed to form after described light collecting portion and be adjusted into default light type through described light shielding part, and then by described projection lens correction outgoing.
Compared with prior art, LED car light of the present invention is transferred to the fluorescent material being originally included in LED encapsulating structure in light collecting portion, avoid fluorescent material to be filled in LED encapsulating structure and be subject to the impact of LED encapsulating structure distribute heat, therefore the stability of this fluorescent material is better, the light of described LED encapsulating structure outgoing excites the fluorescent material in light collecting portion to be mixed to form white light through fiber optic conduction to this light collecting portion, makes the emergent ray colourity of LED car light even.
Brief description of the drawings
Fig. 1 is the generalized section of LED car light in one embodiment of the invention, and described LED car light comprises a light source, and described light source comprises LED encapsulating structure, optical fiber and light collecting portion.
Fig. 2 is the generalized section of LED encapsulating structure in LED car light shown in Fig. 1.
Fig. 3 is the combination schematic diagram of LED encapsulating structure, optical fiber and light collecting portion in LED car light shown in Fig. 1.
Main element symbol description
| |
100 |
| |
10 |
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20 |
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30 |
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40 |
| |
11 |
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12 |
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13 |
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14 |
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15 |
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16 |
| |
141 |
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142 |
| Substrate | 151 |
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152 |
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153 |
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154 |
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155 |
| Encapsulated |
156 |
| First surface | 1511 |
| Second surface | 1512 |
| The |
1521 |
| The |
1522 |
| The |
1531 |
| The |
1532 |
| |
1551 |
| Exiting |
1561 |
| |
41 |
| Light-emitting |
42 |
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
Detailed description of the invention
Be illustrated in figure 1 a preferred embodiment of LED car light 100 of the present invention, this LED car light comprises light source 10, reflective hood 20, light shielding part 30 and projection lens 40.
Refer to Fig. 2 and Fig. 3, described light source 10 comprises LED encapsulating structure 11, the optical fiber 12 being of coupled connections with this LED encapsulating structure 11 and the light collecting portion 13 of being located at optical fiber 12 ends.
Described LED encapsulating structure 11 comprises a circuit board 14, is arranged at respectively this circuit board 14 apparent surfaces' at least one LED packaging body 15 and some fin 16.
This circuit board 14 is regular tabular, and it comprises lower surface 141 and the upper surface 142 relative with this lower surface 141.These some fin 16 from this lower surface 141 to downward-extension setting, adjacent fin 16 spaces, these some fin 16 are for distributing the heat of these at least one LED packaging body 15 luminous generations.This at least one LED packaging body 15 is fixed on this upper surface 142 by scolding tin 17 and forms and be electrically connected with this circuit board 14.
In present embodiment, the quantity of this LED packaging body 15 is two.Each LED packaging body 15 comprises substrate 151, be arranged on electrode 152 on substrate 151, be located at electrode 152 edges pin 153, be located at LED chip 154 and reflector 155 on electrode 152, and cover the encapsulated layer 156 of LED chip 154.
Concrete, described substrate 151 is tabular, and it comprises first surface 1511 and second surface 1512.In the present embodiment, described substrate 151 is insulated substrate, can be made up of one or more in following material: silicon (Si), GaAs (GaAs), zinc oxide (ZnO) and indium phosphide (InP) etc.
Described electrode 152 comprises spaced the first electrode 1521 and the second electrode 1522.Described the first electrode 1521 and the second electrode 1522 extend to second surface 1512 from the first surface 1511 of substrate 151 respectively.Described pin 153 extends straight down and forms respectively the first pin 1531 and the second pin 1532 from the side margins of the first electrode 1521, the second electrode 1522.Described pin 153 and electrode 152 can adopt one-body molded making, and also can first form electrode 152, then form the first pin 1531 and the second pin 1532 at the lower surface of electrode 152.In the present embodiment, pin 153 is to be formed on electrode 152 after forming electrode 152 again.
Described LED chip 154 is arranged on this first electrode 1521, and is formed and be electrically connected with the first electrode 1521 and the second electrode 1522 respectively by the mode of routing, and in the present embodiment, described LED chip 154 sends blue light.Described reflector 155 encloses described LED chip 154 and forms a depression 1551.Understandable, this LED chip 154 can carry out relevant structural adjustment and make blue light concentrate uniform.
Described encapsulated layer 156 is filled in this depression 1551 and covers this LED chip 154, and this encapsulated layer 156 is made up of transparent material, and it can be by silicones or other resins, or other composite materials are made.In this encapsulated layer 156, not containing fluorescent material, the upper surface of this encapsulated layer 156 forms an exiting surface 1561, the top end face of this exiting surface 1561 and this reflector 155.
The quantity of described optical fiber 12 equates with the quantity of this LED packaging body 15.The exiting surface 1561 of one end of this optical fiber 12 and this encapsulated layer 156 is of coupled connections, and makes all light of these LED packaging body 15 outgoing conduct to this light collecting portion 13 through optical fiber 12.
Described light collecting portion 13 is located at the end of this optical fiber 12, and when the quantity of optical fiber 12 is while being multiple, described light collecting portion 13 is connected to collect light and then outgoing with the end of this multifiber 12.Described light collecting portion 13 is made up of transparent material.In this light collecting portion 13, comprise fluorescent material.The light that described LED chip 154 sends converges to this light collecting portion 13 after optical fiber 12 conduction, is mixed to form white light wearing excitated fluorescent powder while penetrating this light collecting portion 13.In the present embodiment, described fluorescent material is yellow fluorescent powder.Understandable, in this light collecting portion 13, also can comprise other one or more fluorescent material, as comprised red fluorescence powder and green emitting phosphor to strengthen the color rendering of the rear white light of conversion simultaneously.
Described reflective hood 20 is oppositely arranged with this light collecting portion 13.This reflective hood 20 is a concave curved surface, and the concave curved surface of this reflective hood 20 can be coated with the described light shielding part 30 that high reflecting material converges to the white light reflection of light-self-collecting portion 13 outgoing, and described light collecting portion 13 is between reflective hood 20 and light shielding part 30.
Described light shielding part 30 is located between reflective hood 20 and projection lens 40.The shape of described light shielding part 30 designs according to headlight rules and regulations light type, and this light shielding part 30 reflects by self-reflection cover body 20 light converging as "cut-off"line and is adjusted into default light type, and then reaches this projection lens 40 and revise and be distributed to the external world.
Described projection lens 40 is convex lens, and it comprises a light entrance face 41 and the light-emitting face 42 relative with this light entrance face 41.This light entrance face 41 and these light shielding part 30 suitable distances in interval one.Described light-emitting face 42 is a sphere.The white light of adjusting through light shielding part 30 enters this projection lens 40 and is distributed to the external world through this light-emitting face 42 from this light entrance face 41.Understandable, this projection lens 40 can be a non-spherical lens.
Compared with prior art, the present invention is transferred to the fluorescent material being originally included in light source 10 encapsulated layers 156 in the light collecting portion 13 of optical fiber 12 ends, avoid fluorescent material to be filled in LED packaging body 15 and be subject to the impact of LED packaging body 15 distribute heats, therefore the stability of this fluorescent material is better, the light of described LED packaging body 15 outgoing conducts to this light collecting portion 13 through optical fiber 12, excite the fluorescent material in light collecting portion 13 to be mixed to form white light, described white light converges to this light shielding part 30 through reflective hood 20 reflections and is adjusted into default light type, and then be distributed to the external world after being revised by projection lens 40, make the emergent ray colourity of LED car light 100 even.Simultaneously, because optical fiber 12 and this LED packaging body 15 are of coupled connections, described LED encapsulating structure 11 can be arranged with the miscellaneous part isolation of LED car light 100, and flexibility and adaptability strengthen greatly, can dwindle the volume of LED car light 100 in increasing LED encapsulating structure 11 radiating effects.
Understandable, in other embodiments, described LED car light 100 also can not comprise reflective hood 20, described light collecting portion 13 is directly towards described light shielding part 30, and described LED encapsulating structure 11 concentrates outgoing to conduct to light shielding part 30 described in light collecting portion 13 and then directive through the relevant emergent ray that is arranged so that LED packaging body 15 through exiting surface 1561.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. a light source, comprise LED encapsulating structure, it is characterized in that: described light source also comprises the optical fiber being of coupled connections with described LED encapsulating structure, described optical fiber connector forms light collecting portion, in described light collecting portion, include fluorescent material, the light of described LED encapsulating structure outgoing to described light collecting portion, and forms white light after exciting fluorescent material in described light collecting portion to mix through fiber optic conduction.
2. light source as claimed in claim 1, is characterized in that: described LED encapsulating structure comprises a LED chip and cover the encapsulated layer of described LED chip, and described encapsulated layer is made up of transparent material, does not comprise fluorescent material in described encapsulated layer.
3. light source as claimed in claim 2, is characterized in that: the surface of described encapsulated layer forms exiting surface, and described optical fiber and the coupling of described exiting surface are for conducting all light of exiting surface outgoing.
4. light source as claimed in claim 3, is characterized in that: described LED chip is from described exiting surface outgoing blue light, and described fluorescent material comprises yellow fluorescent powder.
5. light source as claimed in claim 3, is characterized in that: described LED chip is from described exiting surface outgoing blue light, and described fluorescent material comprises red fluorescence powder and green emitting phosphor.
6. a LED car light, comprise light source, light shielding part and projection lens, light shielding part is between light source and projection lens, it is characterized in that: described light source is the light source described in claim 1 to 5 any one, wear the white light being mixed to form after described light collecting portion and be adjusted into default light type through described light shielding part, and then by described projection lens correction outgoing.
7. LED car light as claimed in claim 6, is characterized in that: described light shielding part is between described light collecting portion and projection lens.
8. LED car light as claimed in claim 7, it is characterized in that: also comprise a reflective hood, described reflective hood is concave curved surface, described light collecting portion is between light shielding part and described reflective hood, described light collecting portion, towards described reflective hood, wears the white light being mixed to form after described light collecting portion and arrive described light shielding part after described reflective hood reflection.
9. LED car light as claimed in claim 6, it is characterized in that: described projection lens is convex lens, it comprises light entrance face and the light-emitting face relative with this light entrance face, and the white light after light shielding part adjustment enters described lens from described light entrance face, and is distributed to the external world by described light-emitting face.
10. LED car light as claimed in claim 9, is characterized in that: described projection lens is non-spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565363.0A CN103883956A (en) | 2012-12-24 | 2012-12-24 | Light source and LED car lamp with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565363.0A CN103883956A (en) | 2012-12-24 | 2012-12-24 | Light source and LED car lamp with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883956A true CN103883956A (en) | 2014-06-25 |
Family
ID=50952997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210565363.0A Pending CN103883956A (en) | 2012-12-24 | 2012-12-24 | Light source and LED car lamp with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036273A (en) * | 2017-11-23 | 2018-05-15 | 北京创格致通科技有限公司 | Laser car light |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010103999A1 (en) * | 2009-03-10 | 2010-09-16 | 株式会社山武 | Fluorescence temperature sensor |
| CN102454931A (en) * | 2010-10-25 | 2012-05-16 | 王丙祥 | High-brightness low-consumption automobile headlamp |
| CN102563539A (en) * | 2012-01-11 | 2012-07-11 | 山东浪潮华光照明有限公司 | Optical fiber type remote light distribution method realized by aid of fluorescent powder |
| CN102679209A (en) * | 2012-03-29 | 2012-09-19 | 周宏� | High-brightness white-light source with optical waveguide |
| CN202452347U (en) * | 2012-02-15 | 2012-09-26 | 宁波比格斯通光电科技有限公司 | Vehicle lamp with integrated far and near light |
-
2012
- 2012-12-24 CN CN201210565363.0A patent/CN103883956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010103999A1 (en) * | 2009-03-10 | 2010-09-16 | 株式会社山武 | Fluorescence temperature sensor |
| CN102454931A (en) * | 2010-10-25 | 2012-05-16 | 王丙祥 | High-brightness low-consumption automobile headlamp |
| CN102563539A (en) * | 2012-01-11 | 2012-07-11 | 山东浪潮华光照明有限公司 | Optical fiber type remote light distribution method realized by aid of fluorescent powder |
| CN202452347U (en) * | 2012-02-15 | 2012-09-26 | 宁波比格斯通光电科技有限公司 | Vehicle lamp with integrated far and near light |
| CN102679209A (en) * | 2012-03-29 | 2012-09-19 | 周宏� | High-brightness white-light source with optical waveguide |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036273A (en) * | 2017-11-23 | 2018-05-15 | 北京创格致通科技有限公司 | Laser car light |
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Application publication date: 20140625 |