CN206637275U - A kind of LED coupled structures - Google Patents
A kind of LED coupled structures Download PDFInfo
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- CN206637275U CN206637275U CN201720309678.7U CN201720309678U CN206637275U CN 206637275 U CN206637275 U CN 206637275U CN 201720309678 U CN201720309678 U CN 201720309678U CN 206637275 U CN206637275 U CN 206637275U
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- optical fiber
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Abstract
Optical fibre illumination refers to that light passes through the transmission of conductor fiber, can be transmitted in arbitrary region.Illuminated object is directed the light to by optical fiber, is greatly improved the accuracy and contrast of illumination.Existing LED illumination optical fiber is in coupling is conducted, LED lamp bead and a lens are the integral structure of encapsulation, because a lens and LED are packaged as a whole, in coupled system, lens are not replaceable, have a strong impact on the coupling efficiency of optical fiber, while this structuring limits LED light-emitting areas and the distance of optical fiber light inputting end, also reduce the coupled structure of coupled system.Therefore existing LED illumination optical fiber coupling conduct in, there is coupling efficiency it is low the problem of.In order to solve existing LED illumination optical fiber in coupling is conducted, there is coupling efficiency it is low the problem of, the utility model provides a kind of LED coupled structures, including：LED light source and coupled structure, the LED light source and coupled structure are set gradually and on the same axis；The LED light source is not provided with lens.
Description
Technical field
It the utility model is related to fiber coupling field, and in particular to a kind of LED coupled structures.
Background technology
Optical fibre illumination refers to that light passes through the transmission of conductor fiber, can be transmitted in arbitrary region.By optical fiber by light
Illuminated object is oriented to, is greatly improved the accuracy and contrast of illumination.Existing LED illumination optical fiber coupling conduct in,
LED lamp bead and a lens is encapsulate integral structure, because a lens and LED are packaged as a whole, in coupled system,
Lens are not replaceable, had a strong impact on the coupling efficiency of optical fiber, while this structuring limits LED light-emitting areas and optical fiber light inputting end
Distance, also reduce the coupled structure of coupled system.Therefore existing LED illumination optical fiber, in coupling is conducted, there is coupling to imitate
The problem of rate is low.
Utility model content
In order to solve existing LED illumination optical fiber coupling conduct in, there is coupling efficiency it is low the problem of, the utility model
A kind of LED coupled structures are provided.
The utility model is achieved by the following technical solution：A kind of LED coupled structures, including：LED light source and coupling
Close structure, the LED light source and coupled structure are set gradually and on the same axis；The LED light source is not provided with lens, bag
LED chip and heat dissipation plate are included, the LED chip is welded to connect with heat dissipation plate；The coupled structure be lens type coupled structure or
Reflective cup type coupled structure or lens and reflector combined type coupled structure；
The lens type coupled structure includes coupled lens and optical fiber, and the coupled lens are arranged on LED chip light-emitting area
Side and LED chip in the front and rear 0.2mm of the focal position of coupled lens, it is remote that the optical fiber is arranged on coupled lens
The opposite side of LED chip；
The reflective cup type coupled structure includes reflector and optical fiber, and the LED chip is arranged on reflector bottom and LED
Chip is located in the front and rear 0.2mm of the focal position of reflector, and the light-emitting area of LED chip is located on the inside of reflector, the optical fiber
It is arranged on the top of reflector；
The lens include coupled lens, optical fiber and reflector with reflector combined type coupled structure, and the LED chip is set
Put and be located in reflector bottom, the light-emitting area of LED chip on the inside of reflector, the coupled lens are arranged in reflector or coupling
That closes lens enters that smooth surface is concordant with the big end end face of reflector and coupled lens enter smooth surface size and the big end end face bore of reflector
Match, the optical fiber is arranged on opposite side of the coupled lens away from LED chip.
Further, the light-emitting area of the LED chip of the lens type coupled structure is less than 1/2 to the distance of coupled lens
The light-emitting area diameter of LED chip.
Further, the distance of the exiting surface of the coupled lens of the lens type coupled structure and optical fiber is less than 1/2 coupling
Close aperture of lens.
Further, the coupled lens are total internal reflection lens.
Further, the coupled lens are glass or heat-resistance type transparent material.
Beneficial effect caused by a kind of LED coupled structures of the utility model is：By the way that LED chip and heat dissipation plate welding are connected
Connect, eliminate the encapsulation of LED chip and coupled lens, simplify production procedure, reduce production cost, package dimension can be made more
It is small, and same package dimension can provide bigger power, contrast existing coupled modes, the utility model can adjust
The light-emitting area of LED chip and the distance of optical fiber light inputting end, at this apart from interior configuration coupled lens as needed, improve coupled system
Efficiency.
Brief description of the drawings
Fig. 1 is the encapsulating structure of a kind of LED coupled structures of the utility model LED chip of the prior art and coupled lens
Figure.
Fig. 2 is a kind of LED coupled structures lens type coupled modes schematic diagram of the utility model.
Fig. 3 is a kind of reflective cup type coupled modes schematic diagram of LED coupled structures of the utility model.
Fig. 4 is a kind of LED coupled structures total internal reflection lens formula coupled modes schematic diagram of the utility model.
Fig. 5 is a kind of LED coupled structures lens of the utility model and reflector combined type schematic diagram.
In figure：（1）LED chip,（101）LED light-emitting areas,（2）Coupled lens,（201）Total internal reflection lens,（3）Optical fiber,
（4）Reflector,（5）Heat dissipation plate.
Embodiment
It will describe in detail in conjunction with specific embodiments with reference to the accompanying drawings below：
Fig. 1 is the encapsulating structure of a kind of LED coupled structures of the utility model LED chip of the prior art and coupled lens
Figure, Fig. 2 is a kind of LED coupled structures lens type coupled modes schematic diagram of the utility model, and Fig. 3 is a kind of LED of the utility model
The reflective cup type coupled modes schematic diagram of coupled structure, Fig. 4 are a kind of LED coupled structures total internal reflection lens formula coupling of the utility model
Schematic diagram is closed, Fig. 5 is a kind of LED coupled structures lens of the utility model and reflector combined type schematic diagram.As seen from the figure,
The utility model is achieved by the following technical solution：
A kind of LED coupled structures, including：LED light source and coupled structure, the LED light source and coupled structure are set gradually
And on the same axis；The LED light source is not provided with lens, including LED chip（1）And heat dissipation plate（5）, the LED chip with
Heat dissipation plate is welded to connect；The coupled structure is lens type coupled structure or reflective cup type coupled structure or lens and reflector group
Box-like coupled structure；
The utility model is in the specific implementation, direct using flip-chip by the way that LED chip and heat dissipation plate are welded to connect
Soldering and sealing eliminates the encapsulation of LED chip and coupled lens to the pad of package bottom, simplifies production procedure, reduces production cost,
Package dimension be can be made smaller, and same package dimension can provide bigger power, contrast existing coupled modes, this
Utility model can adjust the light-emitting area of LED chip and the distance of optical fiber light inputting end, at this apart from interior configuration coupling as needed
Lens, improve the efficiency of coupled system.
In the present embodiment, coupled lens and optical fiber are included using lens type coupled modes, the lens type coupled structure,
The coupled lens are arranged on the side of LED chip light-emitting area and LED chip is before and after the focal position of coupled lens
In 0.2mm, the optical fiber is arranged on opposite side of the coupled lens away from LED chip；
In the present embodiment, LED chip light-emitting area is 1mm × 1mm, and the coupled lens used is glass materials, coupling
The bore of lens is 3.2mm, focal length 0.3mm, center thickness 1.2mm, and coupled lens are arranged on LED chip light-emitting area
Side 0.3mm at, optical fiber uses diameter 2mm, length 20cm plastic optical fiber, and optical fiber is arranged on coupled lens away from LED
The opposite side of chip, luminous flux is measured by light-measuring integrating sphere, the coupling efficiency for measuring the coupled structure is 60.5%, same at present
Sample light-emitting area, LED chip light-emitting area and lens distance 0.25mm when LED is encapsulated, the center thickness of lens is 1.5mm, measurement
Its coupling efficiency is 59.7%, and by above-mentioned contrast, the utility model reduces the size of coupled structure.
In another embodiment, coupled lens are arranged at the 0.1mm of LED chip light-emitting area side, remaining parameter and sheet
Embodiment is identical, and luminous flux is measured by light-measuring integrating sphere, and the coupling efficiency for measuring the coupled structure is 61.4%, with existing reality
Contrasted with new, reduce the size of coupled structure.
In another embodiment, coupled lens are arranged at the 0.5mm of LED chip light-emitting area side, remaining parameter and sheet
Embodiment is identical, and luminous flux is measured by light-measuring integrating sphere, and the coupling efficiency for measuring the coupled structure is 59.8%, with existing reality
Contrasted with new, reduce the size of coupled structure.
Further, in order to further improve the coupling efficiency of coupled system, the light-emitting area of the LED chip to coupling
The light-emitting area diameter of LED chip of the distance of lens less than 1/2；The exiting surface of the coupled lens and the distance of optical fiber are less than 1/
2 coupled lens bore.In the present embodiment, the distance 1.5mm of the exiting surface of coupled lens and optical fiber.
In another embodiment, using the coupled modes of reflector, the reflective cup type coupled structure include reflector and
Optical fiber, reflector are made of metal material, have crossed the reflective membrane of one layer of aluminum on surface, and reflector is using parabola shaped, greatly
Port footpath is 2mm, and small end bore is 1.45mm, is highly 2mm, and the focus of reflector is i.e. at the center of small end bore, LED core
Piece is located at the focal position of reflector bottom and light-emitting area is located at the inner side of reflector；Optical fiber uses diameter 2mm, length 20cm's
Plastic optical fiber, optical fiber are located at the large port footpath of reflector, measure luminous flux by light-measuring integrating sphere, measure the coupled structure
Coupling efficiency is 63.2%；In another embodiment, LED chip is at 0.2mm, remaining parameter is identical before reflector focus,
The coupling efficiency for measuring the coupled structure is 62.5%；In another embodiment, LED chip 0.2mm behind reflector focus
Place, remaining parameter is identical, and the coupling efficiency for measuring the coupled structure is 62.9%.
In another embodiment, reflector is made of metal material, and the reflective membrane of one layer of aluminum has been crossed on surface, reflective
Cup use is parabola shaped, and large port footpath is 2.5mm, and small end bore is 1.5mm, is highly 3mm, and the focus of reflector is i.e. in small end
At the center of bore, LED chip is located at the inner side of reflector in the focal position of reflector bottom and light-emitting area；Optical fiber uses
Diameter 2mm, length 20cm plastic optical fiber, optical fiber are located at reflector section and fibre external diameters identical position, accumulated by light-metering
Bulb separation measures luminous flux, and the coupling efficiency for measuring the coupled structure is 62.8%.
In another embodiment, using lens and reflector combined type coupled structure, including coupled lens, optical fiber and reflective
Cup, the LED chip is arranged on reflector bottom, and reflector is made of metal material, and the anti-of one layer of aluminum has been crossed on surface
Light film, reflector is using parabola shaped, and large port footpath is 2.2mm, and small end bore is 1.45mm, is highly 2.5mm, LED chip
Light-emitting area is 1mm × 1mm, and LED chip is at the center of reflector bottom small end bore and light-emitting area is located at reflector
Inner side；The bore of coupled lens is 2.2mm, center thickness 1.1mm, the big end end for entering smooth surface and reflector of coupled lens
Face is concordant；Optical fiber uses diameter 2.2mm, length 20cm plastic optical fiber, is arranged on coupled lens away from the another of LED chip
Side, the distance 0.2mm apart from the light extraction end of coupled lens;Luminous flux is measured by light-measuring integrating sphere, measures the coupling of the coupled structure
It is 63.7% to close efficiency.In another embodiment, reflector uses parabola shaped, and large port footpath is 2.2mm, and small end bore is
1.45mm, it is highly 2.5mm, LED chip light-emitting area is 1mm × 1mm, and LED chip is in reflector bottom small end bore
Center at and light-emitting area be located at the inner side of reflector；The bore of coupled lens is 1.45mm, center thickness 1.1mm, is coupled
Lens are arranged in reflector by support frame, and the light-emitting area of LED chip is 0.2mm apart from the smooth surface of entering of coupled lens；Optical fiber
It is concordant with the big end end face of reflector using diameter 2.2mm, length 20cm plastic optical fiber, the light inlet of optical fiber；Pass through light-metering
Integrating sphere measures luminous flux, and the coupling efficiency for measuring the coupled structure is 63.4%.
The lens also include coupled lens, optical fiber and reflector, the LED core with reflector combined type coupled structure
Piece, coupled lens and optical fiber are arranged in reflector, and LED chip is arranged on reflector bottom, and both patterns are combined laggard
One step improves the coupling efficiency of coupled system.
Further, in order to improve coupling efficiency, in another embodiment, using lens type coupled modes and coupled lens
For total internal reflection lens.
Further, in order to reduce production cost, the coupled lens are glass or heat-resistance type transparent material, in this implementation
In example, coupled lens are using glass material.
It should be understood that embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.In addition should manage
Solution, after the content of the utility model instruction has been read, those skilled in the art can make any various to the utility model
Change and modification, these equivalent form of values equally fall within the application appended claims and limited.
Claims (5)
- A kind of 1. LED coupled structures, it is characterised in that：Including LED light source and coupled structure, the LED light source and coupled structure Set gradually and on the same axis；The LED light source is not provided with lens, including LED chip and heat dissipation plate, the LED chip It is welded to connect with heat dissipation plate；The coupled structure is lens type coupled structure or reflective cup type coupled structure or lens and reflector Combined type coupled structure；The lens type coupled structure includes coupled lens and optical fiber, and the coupled lens are arranged on the one of LED chip light-emitting area Side and LED chip is in the front and rear 0.2mm of the focal position of coupled lens, the optical fiber is arranged on coupled lens away from LED The opposite side of chip；The reflective cup type coupled structure includes reflector and optical fiber, and the LED chip is arranged on reflector bottom and LED chip In the front and rear 0.2mm of the focal position of reflector, the light-emitting area of LED chip is located on the inside of reflector, and the optical fiber is set At the top of reflector；The lens include coupled lens, optical fiber and reflector with reflector combined type coupled structure, and the LED chip is arranged on Reflector bottom, the light-emitting area of LED chip are located on the inside of reflector, and the coupled lens are arranged in reflector or coupling is saturating Mirror enters that smooth surface is concordant with the big end end face of reflector and coupled lens enter smooth surface size and the big end end face bore phase of reflector Match somebody with somebody, the optical fiber is arranged on opposite side of the coupled lens away from LED chip.
- A kind of 2. LED coupled structures according to claim 1, it is characterised in that：The LED core of the lens type coupled structure The light-emitting area diameter of LED chip of the light-emitting area of piece to the distance of coupled lens less than 1/2.
- A kind of 3. LED coupled structures according to claim 1, it is characterised in that：The coupling of the lens type coupled structure The exiting surface of lens and the distance of optical fiber are less than 1/2 coupled lens bore.
- A kind of 4. LED coupled structures according to claim 1, it is characterised in that：The coupled lens are that total internal reflection is saturating Mirror.
- A kind of 5. LED coupled structures according to claim 1, it is characterised in that：The coupled lens are glass or heatproof Type transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309678.7U CN206637275U (en) | 2017-03-24 | 2017-03-24 | A kind of LED coupled structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309678.7U CN206637275U (en) | 2017-03-24 | 2017-03-24 | A kind of LED coupled structures |
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| Publication Number | Publication Date |
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| CN206637275U true CN206637275U (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720309678.7U Expired - Fee Related CN206637275U (en) | 2017-03-24 | 2017-03-24 | A kind of LED coupled structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838647A (en) * | 2017-03-24 | 2017-06-13 | 重庆市光利医疗科技有限公司 | A kind of LED coupled structures |
-
2017
- 2017-03-24 CN CN201720309678.7U patent/CN206637275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838647A (en) * | 2017-03-24 | 2017-06-13 | 重庆市光利医疗科技有限公司 | A kind of LED coupled structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180315 Address after: 400025 No. 2, No. 2, No. 2, No. two, Jiangbei District, Jiangbei District, 2-1, 2-1 Patentee after: Chongqing light remote Photoelectric Technology Co., Ltd. Address before: 400026 Jiangbei District, Chongqing City West Road, No. 1, unit 2, 7-1 (room number: No. 708) () Patentee before: Chongqing City Light Medical Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20200324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |