CN106707426B - A kind of collimation coupled system for optical fibre illumination - Google Patents
A kind of collimation coupled system for optical fibre illumination Download PDFInfo
- Publication number
- CN106707426B CN106707426B CN201710079504.0A CN201710079504A CN106707426B CN 106707426 B CN106707426 B CN 106707426B CN 201710079504 A CN201710079504 A CN 201710079504A CN 106707426 B CN106707426 B CN 106707426B
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- China
- Prior art keywords
- lens
- coupled
- optical fiber
- collimation
- led chip
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of simple lens collimation coupled system for optical fibre illumination field, including LED chip, coupled lens, optical fiber, the light that the LED chip is sent out enters optical fiber by coupled lens collimation, the central axis of LED chip, coupled lens and optical fiber is in same axis, and LED chip is in the front focus of coupled lens；The light-emitting surface of the LED chip is centrosymmetric and area is 0.36~2.25mm2, coupled lens are in nearly hemisphere lens substantially symmetrical about its central axis, and coupled lens include close to sources face and remote surface of light source, and close to sources face is the spherical surface or aspherical that radius of curvature is more than 15mm, and remote surface of light source is spherical surface or aspherical of the radius of curvature between 1~1.35mm；The front focal length of the lens is 0.7~1.2mm from the center thickness for 0.1~0.3mm, the lens；The lens are made of solid material of the refractive index between 1.6~1.85.Coupled system provided by the invention is simple in structure, small, and light-weight and production cost is low, while also ensuring higher coupling efficiency.
Description
Technical field
The present invention relates to optical fibre illumination fields, more particularly to a kind of collimation coupled system for optical fibre illumination.
Background technology
With the development of LED cold light sources, power constantly increases, and the LED chip of 100 lumens or more has occurred.Tradition
LED illumination due to its power supply it is close from lamp, requiring anticreep occasion of preventing fires, that there are devices is complicated, of high cost for lamp source
And maintenance difficult, the problems such as service life is short.
The optical fibre illumination of rising in recent years will be conducted to arbitrary by the light beam of coupled system collimation using optical fiber
The separation of light and electricity may be implemented in a kind of high-tech technology in region.In anticreep occasion of preventing fires, such as oil, chemical industry, swimming pool
Etc. occasions, the light source for being also easy to produce heat and electrification can be placed on to safe and easy-maintaining place, you can overcome the above problem.
Traditional optical fibre illumination, with golden halogen lamp etc. for light source, coupled system mostly uses reflector.Currently, being based on LED core
The characteristics such as the growth of piece power and its long lifespan, the response time is short, low energy consumption, impact resistance, more and more researchers are by mesh
Light invests LED, the light source using LED as optical fiber illuminating system.When using light sources of the LED as optical fibre illumination, on the market
Optical fibre illumination coupled system mainly use lens group.Light beam penetrates multiple lens, and coupling efficiency substantially reduces, while lens
Group is used as coupled system, causes coupled system structure and assembly technology complicated, cost also greatly increases.
Invention content
Coupling efficiency for solution lens group coupled system is low, the problem of coupled system structure and assembly technology complexity,
The present invention provides a kind of simple lens collimation coupled system for optical fibre illumination field,
The technical scheme is that：
A kind of collimation coupled system for optical fibre illumination, including LED chip, coupled lens, optical fiber, the LED chip
The light sent out enters optical fiber by coupled lens collimation, and the central axis of the LED chip, coupled lens and optical fiber is in same axis
Line, the LED chip is in the front focus of coupled lens；The LED chip has light-emitting surface, institute close to coupled lens side
State light-emitting surface be centrosymmetric and area be 0.36~2.25mm2, the coupled lens are in nearly hemisphere substantially symmetrical about its central axis
Lens, the coupled lens include close to sources face and remote surface of light source, and close to sources face is the spherical surface or non-that radius of curvature is more than 15mm
Spherical surface, remote surface of light source are spherical surface or aspherical of the radius of curvature between 1~1.35mm；The front focal length of the coupled lens from for
The center thickness of 0.1~0.3mm, the coupled lens are 0.7~1.2mm；The coupled lens using refractive index 1.6~
Solid material between 1.85 is made.
Further improvement of the present invention is that the optical fiber is a diameter of 1.5~3mm optical fiber.
Further improvement of the present invention is that the coupled lens material is the glass that refractive index is 1.6~1.85.
Further improvement of the present invention is that the close to sources face of the coupled lens and remote surface of light source are coated with anti-reflection film.
Further improvement of the present invention is that the close to sources face of the coupled lens is plane.
Further improvement of the present invention is that the coupled lens further include edge surface, and the edge thickness of coupled lens is
0.2~0.5mm.
Further improvement of the present invention is that the light-emitting surface is the square of 0.6~1.5mm × 0.6~1.5mm.
Further improvement of the present invention is, further includes sealing sleeve pipe, and coupled lens are fixed with inside the sealing sleeve pipe,
One end of the sealing sleeve pipe is fixed with LED chip, and the other end of sealing sleeve pipe is fixed with optical fiber.
Further improvement of the present invention is that the inside of the sealing sleeve pipe is coated with reflective material layer.
Further improvement of the present invention is that the sealing sleeve pipe is made of the material of insulation.
Further improvement of the present invention is that the optical fiber is plastic optical fiber.
Further improvement of the present invention is, the front focal lengths of the coupled lens is from for 0.2mm, in the coupled lens
Heart thickness is 1.2mm, and close to sources face is plane, and remote surface of light source is the spherical surface that radius is 1.1mm, and the coupled lens are using refraction
Glass preparation of the rate 1.75；
Further improvement of the present invention is that the light-emitting surface of the LED chip is 1mm × 1mm squares, and the optical fiber is adopted
With the plastic optical fiber of a diameter of 2mm.
The beneficial technical effect of the present invention lies in：
A kind of collimation coupled system for optical fibre illumination, including LED chip, coupled lens, optical fiber, the LED chip
The light sent out enters optical fiber by coupled lens collimation, and the central axis of the LED chip, coupled lens and optical fiber is in same axis
Line, the LED chip in the front focus of coupled lens, the light-emitting surface of the LED chip be 0.6~1.5mm × 0.6~
1.5mm ensures that the incident angle of light is small, and the coupled lens are in nearly hemisphere lens substantially symmetrical about its central axis, and the coupling is saturating
Mirror includes close to sources face and remote surface of light source, and close to sources face is the spherical surface or aspherical that radius of curvature is more than 15mm, and remote surface of light source is
Spherical surface or aspherical of the radius between 1~1.35mm；The front focal length of the coupled lens is from for 0.1~0.3mm, the coupling
The center thickness of lens is 0.7~1.2mm；The lens are made of solid material of the refractive index between 1.6~1.85, are made
The numerical aperture of lens is big, big to the reception ability of light, improves the coupling efficiency of coupled system.
The coupled lens use glass preparation, glass high temperature resistant that can reduce the high temperature near light source and be rolled over to coupled lens
The influence of rate is penetrated, coupling efficiency is improved；The close to sources face of coupled lens and remote surface of light source are coated with anti-reflection film, can reduce since light is anti-
The light loss for penetrating generation, further increases coupling efficiency；Sealing sleeve pipe is internally provided with reflective material layer, can reduce light loss,
It can be coupled with cheap plastic optical fiber while coupled system, reduce production cost.
Coupled system provided by the invention is simple in structure, small, and light-weight and production cost is low, also ensures simultaneously
Higher coupling efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
The explanation of label in Fig. 1：1-LED chips, 2- coupled lens, 3- optical fiber, 4- sealing sleeve pipes, 101- light-emitting surfaces,
201- close to sources face, the remote surface of light sources of 202-, 203- edge surfaces, 401- reflective material layers.
Specific implementation mode
To further illustrate the present invention, will be described in detail in conjunction with attached drawing.
Embodiment 1:
A kind of collimation coupled system for optical fiber, including LED chip 1, coupled lens 2, optical fiber 3 and sealing sleeve pipe 4, institute
It states light that LED chip 1 is sent out and optical fiber 3 is entered by the collimation of coupled lens 2, the LED chip 1, coupled lens 2 and optical fiber 3
Central axis is located at the front focus of coupled lens 2 in same axis, the LED chip 1；One end of the sealing sleeve pipe 4 is fixed
There are LED chip 1, the other end of sealing sleeve pipe 4 to be fixed with optical fiber 3.The coupled lens 2 are in nearly hemisphere substantially symmetrical about its central axis
The front focal length of lens, the coupled lens 2 is 0.2mm, and the center thickness of the coupled lens 2 is 1.2mm, the coupled lens
2 include close to sources face 201, remote surface of light source 202 and edge surface 203, and close to sources face 201 is plane, and remote surface of light source 202 is curvature half
Diameter is the spherical surface of 1.2mm, and the edge thickness of the coupled lens 2 is 0.2mm；The coupled lens are using refractive index 1.75
Glass preparation；The LED chip 1 is 1mm × 1mm having light-emitting surface 101, the light-emitting surface 101 close to 2 side of coupled lens
Square, the sealing sleeve pipe 4, which is adopted, to be made from an insulative material, and reflective material layer 401 is equipped in sealing shroud, and the optical fiber 3 is adopted
With the plastic optical fiber of a diameter of 2mm.
Using a kind of collimation coupled system for optical fibre illumination described in embodiment 1, its coupling efficiency, measurement side are measured
Method is as follows：
After naked light source is welded connection, constant current 0.5A stablizes 30 seconds.Measure the luminous flux that naked light source is measured using integrating sphere
Φ1.After being completed, sealing sleeve pipe 4 (being inside fixed with coupled lens 2) and 20cm optical fiber are loaded onto.Light is driven using 0.5A electric currents
Source stablizes 30 seconds, measures the luminous flux phi of optic fibre end2, luminous flux is calculated as follows.
Coupling efficiency=Φ1/Φ2× 100%
The collimation coupled system illuminated for optical fiber 3 described in embodiment 1, coupling efficiency are shown in Table 1.
In table 1, some technical characteristics of the collimation coupled system in embodiment 2-9, other skills of embodiment 2-9 are listed
Art feature is same as Example 1.
In 1 each embodiment of table, the coupling efficiency of coupled system is collimated
1. the parameter of coupled lens includes close to sources face subsequent corrosion R, remote surface of light source subsequent corrosion r, center thickness H, preceding
Defocus distance FL.
1. the parameter of coupled lens 2 includes 201 subsequent corrosion R of close to sources face, 202 subsequent corrosion r of remote surface of light source, center is thick
H is spent, front focal length is from FL.
According to the data of table 1, embodiment 1 is compared with embodiment 6, and only the area of the light-emitting surface 101 of LED chip 1 is different, real
The square that the light-emitting surface 101 in example 1 is 1mm × 1mm is applied, the light-emitting surface 101 of embodiment 6 is the square of 1.5m × 1.5m,
The coupling efficiency of embodiment 1 is 65%, and the coupling efficiency of embodiment 6 is 63.7%, this 1 light-emitting surface 101 of LED chip shown
Area is bigger, and the coupling efficiency of coupled system is lower.
Embodiment 1 is compared with embodiment 7, and the coupled lens 2 of embodiment 1 have plating anti-reflection film, the coupled lens 2 of embodiment 7
Non-anti-reflection coated, other technical characteristics are all identical, and the coupling efficiency of embodiment 1 is 65%, and the coupling efficiency of embodiment 7 is
61.3%, this shows that anti-reflection film is plated in the close to sources face 201 of coupled lens 2 and remote surface of light source 202, is conducive to improve coupled system
Coupling efficiency.
Embodiment 7 is compared with embodiment 8, and embodiment 7 uses the coupled lens 2 for the glass preparation that refractive index is 1.7, real
It applies example 8 and uses coupled lens 2 prepared by the optical plastic PC that refractive index is 1.58, the material of two embodiments only coupled lens 2
Different, the coupling efficiency of embodiment 7 is 61.3%, and the coupling efficiency of embodiment 8 is 57.5%, this shows the material of lens
Coupling efficiency is influenced, the coupled lens 2 of glass material are more advantageous to the coupling efficiency for improving coupled system.
Any modification made by for those skilled in the art, all within the spirits and principles of the present invention, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of collimation coupled system for optical fibre illumination, which is characterized in that including LED chip, coupled lens, optical fiber, institute
State light that LED chip is sent out and optical fiber entered by coupled lens collimation, the LED chip, coupled lens and optical fiber central shaft
In same axis, the LED chip is in the front focus of coupled lens；The LED chip has close to coupled lens side
There is light-emitting surface, the light-emitting surface is centrosymmetric and area is 0.36~2.25mm2, the coupled lens are in substantially symmetrical about its central axis
Nearly hemisphere lens, the coupled lens include close to sources face and remote surface of light source, and close to sources face is that radius of curvature is more than 15mm
Spherical surface or aspherical, remote surface of light source is spherical surface or aspherical of the radius of curvature between 1~1.35mm；The preceding coke of the lens
Distance is 0.1~0.3mm, and the center thickness of the lens is 0.7~1.2mm；The lens are using refractive index 1.6~1.85
Between solid material be made.
2. collimation coupled system as described in claim 1, which is characterized in that the optical fiber is a diameter of 1.5~3mm optical fiber.
3. collimation coupled system as claimed in claim 2, which is characterized in that the coupled lens material be refractive index be 1.6~
1.85 glass.
4. collimation coupled system as claimed in claim 3, which is characterized in that the close to sources face of the lens and remote surface of light source are coated with
Anti-reflection film.
5. collimation coupled system as claimed in claim 4, which is characterized in that the close to sources face of the lens is plane.
6. collimation coupled system as claimed in claim 5, which is characterized in that the coupled lens further include edge surface, and coupling is saturating
The edge thickness of mirror is 0.2~0.5mm.
7. as claimed in claim 6 collimation coupled system, which is characterized in that the light-emitting surface be 0.6~1.5mm * 0.6~
The square of 1.5mm.
8. collimation coupled system as claimed in claim 7, which is characterized in that further include sealing sleeve pipe, inside the sealing sleeve pipe
Coupled lens are fixed with, one end of the sealing sleeve pipe is fixed with LED chip, and the other end of sealing sleeve pipe is fixed with optical fiber.
9. collimation coupled system as claimed in claim 8, which is characterized in that the inside of the sealing sleeve pipe is coated with reflectorized material
Layer.
10. collimation coupled system as claimed in claim 9, which is characterized in that the sealing sleeve pipe is made of the material of insulation.
11. collimation coupled system as claimed in claim 10, which is characterized in that the optical fiber is plastic optical fiber.
12. collimation coupled system as claimed in claim 11, which is characterized in that the front focal length of the coupled lens from for 0.2mm,
The center thickness of the coupled lens is 1.2mm, and close to sources face is plane, and remote surface of light source is the spherical surface that radius is 1.1mm, described
Lens use glass preparation of the refractive index 1.75.
13. collimation coupled system as claimed in claim 12, which is characterized in that the light-emitting surface 1mm * 1mm's of the LED chip
Square, the optical fiber use the plastic optical fiber of a diameter of 2mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079504.0A CN106707426B (en) | 2017-02-14 | 2017-02-14 | A kind of collimation coupled system for optical fibre illumination |
| PCT/CN2017/077031 WO2018149011A1 (en) | 2017-02-14 | 2017-03-17 | Collimating and coupling system used for optical fibre lightening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079504.0A CN106707426B (en) | 2017-02-14 | 2017-02-14 | A kind of collimation coupled system for optical fibre illumination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106707426A CN106707426A (en) | 2017-05-24 |
| CN106707426B true CN106707426B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079504.0A Expired - Fee Related CN106707426B (en) | 2017-02-14 | 2017-02-14 | A kind of collimation coupled system for optical fibre illumination |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106707426B (en) |
| WO (1) | WO2018149011A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102404B (en) * | 2017-07-03 | 2019-03-22 | 沈阳雷卓激光医疗器械有限公司 | The dental lamp guide of beam homogenization |
| CN107544101A (en) * | 2017-08-31 | 2018-01-05 | 重庆光遥光电科技有限公司 | It is a kind of to be used for LD and the single non-spherical lens of fiber coupling |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61107207A (en) * | 1984-10-30 | 1986-05-26 | Nippon Sheet Glass Co Ltd | Optical coupler |
| JP3423304B1 (en) * | 2001-11-09 | 2003-07-07 | シーシーエス株式会社 | Light irradiation device and light irradiation unit |
| JP2006072232A (en) * | 2004-09-06 | 2006-03-16 | Mitsubishi Electric Corp | Optical transceiver module |
| US7731404B2 (en) * | 2008-02-25 | 2010-06-08 | Osram Sylvania Inc | Light source |
| CN101629700B (en) * | 2009-08-24 | 2011-09-28 | 华中科技大学 | Optical fibre-LED coaxial connector |
| JP5454528B2 (en) * | 2011-08-09 | 2014-03-26 | ウシオ電機株式会社 | Optical fiber irradiation device |
| CN103398314A (en) * | 2013-08-16 | 2013-11-20 | 上海海潮新技术研究所 | Laser uniform illumination device of fingerprint optical emerging system |
| CN203857315U (en) * | 2014-05-09 | 2014-10-01 | 重庆市光遥光电节能科技有限公司 | LED lighting system with optical fibers |
| US20150369991A1 (en) * | 2014-06-23 | 2015-12-24 | Corning Incorporated | Light diffusing fiber lighting device having a single lens |
| CN204785646U (en) * | 2015-06-01 | 2015-11-18 | 石家庄经济学院 | High -power led optical fiber source |
| CN206450867U (en) * | 2017-02-14 | 2017-08-29 | 重庆市光利医疗科技有限公司 | A kind of collimation coupled system for optical fibre illumination |
-
2017
- 2017-02-14 CN CN201710079504.0A patent/CN106707426B/en not_active Expired - Fee Related
- 2017-03-17 WO PCT/CN2017/077031 patent/WO2018149011A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018149011A1 (en) | 2018-08-23 |
| CN106707426A (en) | 2017-05-24 |
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Effective date of registration: 20180319 Address after: 400025 No. 2, No. 2, No. 2, No. two, Jiangbei District, Jiangbei District, 2-1, 2-1 Applicant 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) () Applicant before: Chongqing City Light Medical Technology Co., Ltd. |
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