CN208986361U - A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide - Google Patents
A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide Download PDFInfo
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- CN208986361U CN208986361U CN201821401570.1U CN201821401570U CN208986361U CN 208986361 U CN208986361 U CN 208986361U CN 201821401570 U CN201821401570 U CN 201821401570U CN 208986361 U CN208986361 U CN 208986361U
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Abstract
The utility model discloses a kind of light supply apparatus based on fluorescent crystal pumping optical waveguide, the diodes including several transmitting pump lights, further includes: pumping optical waveguide assembly；The plano-convex lens of the pump light waveguide end are set；The diode is distributed in the protrusion front side of the plano-convex lens and the light of the pump light enters the pumping optical waveguide assembly by the plano-convex lens；The pumping optical waveguide assembly includes: quartz socket tube；It is built in the fluorescent crystal stick of the quartz socket tube；Seal two incident optical windows at the quartz socket tube both ends；It is directed in the quartz socket tube and is submerged in the waveguide liquid of the fluorescent crystal stick.The pumping fluorescent crystal of efficient stable can be capable of and generate green-yellow light.
Description
Technical field
The utility model relates to optical field more particularly to a kind of light supply apparatus based on fluorescent crystal pumping optical waveguide.
Background technique
Mainly there is yellow/green light diode (LED) yellowish green radiant in existing market, green-yellow light laser diode (LD) and compared with
Based on large-scale yellowish green light laser.LED product is although low in cost, but intensity is lower, tend not to meet Projection Display or
The demand of medical application；And LD product cost is high, efficiency is lower, and core technology is gripped tightly by overseas business, at present very
Difficult large-scale application；Yellowish green light laser is then because high operation and maintenance cost also can not large-scale uses.Therefore, one is developed
Kind is novel, and inexpensive and reliable yellowish green radiant is particularly important.
The cost high compared to green-yellow light laser diode, blue light laser diode technology relative maturity, at present by
It is widely applied, fluorescent material is pumped by blue laser can also generate green-yellow light, and laser pump (ing) fluorescent light source is cheap with its
Price, relatively simple structure and longer service life become the hot spot technology of the next-generation yellowish green radiant of exploitation, however fluorescence
Material does not tolerate high temperature, is easy to generate hot Quenching under the fuel factor of laser irradiation, leads to decrease in efficiency, output
Under powered problem, thus, by effective structure be designed to deal with laser pump (ing) fluorescent light source heat dissipation and light beam it is whole
The problems such as shape, becomes for key problem.The Casio company of Japan takes the lead in being proposed laser pump (ing) phosphor source projector,
And to put goods on the market.Its essential core component is high-speed rotating fluorescent powder wheel, by making fluorescent powder wheel high speed rotation, Neng Gouran
Fluorescent powder wheel is heated evenly, and effectively carries out heat exchange with air, to evade the hot Quenching of fluorescent powder wheel.But fluorescence
The rotation of powder wheel needs the mechanical devices such as motor, and the introducing of mechanical part reduces the reliability and service life of equipment again.Separately
A kind of technology is then that fluorescent crystal is directly pumped using blue laser, and this technical body is simple, does not depend on mechanical device, reliably
Property it is high, but design difficulty is larger, mainly concentrates on the contradiction of crystal heat dispersion structure and optical beam path design.
Utility model content
In order to overcome the above technical defects, the utility model provides a kind of light source dress based on fluorescent crystal pumping optical waveguide
It sets, the pumping fluorescent crystal of efficient stable can be capable of and generates green-yellow light.
To solve the above-mentioned problems, the utility model is achieved by following technical scheme:
A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide, the diode including several transmitting pump lights, is also wrapped
It includes: pumping optical waveguide assembly；The plano-convex lens of the pump light waveguide end are set；The diode is distributed in the plano-convex
On front side of the protrusion of lens and the light of the pump light enters the pumping optical waveguide assembly by the plano-convex lens；
The pumping optical waveguide assembly includes: quartz socket tube；It is built in the fluorescent crystal stick of the quartz socket tube；Sealing institute
State two incident optical windows at quartz socket tube both ends；It is directed in the quartz socket tube and is submerged in the waveguide liquid of the fluorescent crystal stick
Body.
Further, the center line of the axle center of the fluorescent crystal stick and the quartz socket tube is the inclined of non-same horizontal line
It feels at ease and sets.
Further, include in the fluorescent crystal stick doped with a certain amount of caesium metal ion yag crystal or
Lutetium aluminum carbuncle crystal or ceramic crystal；
The fluorescent crystal stick is cylindric and is fixed between described two incident optical windows, fluorescent crystal stick both ends
End face by polishing treatment and be coated with 200 microns of thick metallic reflective coatings, side handles by frosted and forms frosted glass table
Face.
Further, the incident optical window is metal copper sheet, and the metallic copper on piece offers several plated film windows, described
Plated film window outboard face is used to the pump light of anti-reflection incidence, and inner surface is used to the green-yellow light that high reflection is excited.
Further, the circular casing that the refractive index of the quartz socket tube is 1.4586, the quartz socket tube length are
80mm, internal diameter 7mm, outer diameter 8mm, pipe thickness 1mm.
Further, the waveguide liquid be refractive index be less than the quartz socket tube refractive index pure water, the pump
The total internal reflection on quartz socket tube inner wall of Pu light.
Further, the pump light inside the pumping optical waveguide assembly is cooled down by the waveguide liquid, described
Pump light forms the lower blue green light of power density after absorbing by the fluorescent crystal stick, and the blue green light is finally from described glimmering
It is projected around as lambert's body light source the side of luminescent crystal stick.
Further, the pump light is projected by total 16 diodes of 4 rows 4 column, and the pump light includes but is not limited to
Blue laser.
Further, the diameter of the plano-convex lens is 50mm, and focal length 36mm is made of optical glass material；
The both ends that the plano-convex lens and the diode are co-located on the pumping optical waveguide assembly form both ends pump
Pu or any one end for being co-located on the pumping optical waveguide assembly form single-ended pumping.
Further, the diameter that the fluorescent crystal stick is is 2mm, and length is the cylinder of 80mm.
Compared with prior art, the utility model has the beneficial effects that
The utility model discloses a kind of light supply apparatus based on fluorescent crystal pumping optical waveguide, can be realized and swash to pumping
The light that light issues is converted to the blue green light of low cost.Wherein, the fluorescent crystal stick inside the light supply apparatus can provide larger
The plane of incidence, improve and absorb energy, while the heat dissipation area of crystal bar can also be increased, significantly reduce hot-quenching and go out the risk of generation,
Improve the stability of light source conversion.In addition, built-in waveguide liquid has both cooling and guide-lighting effect, to realize swashing for higher power
Optical pumping provides feasible program.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is a kind of structure of the disclosed light supply apparatus based on fluorescent crystal pumping optical waveguide of the utility model embodiment
Schematic diagram；
Fig. 2 is the light conversion of the disclosed light supply apparatus based on fluorescent crystal pumping optical waveguide of the utility model embodiment
Schematic diagram.
In figure:
1- first diode；The first plano-convex lens of 2-；The incident optical window of 3- first；4- the first filming window；5- quartz socket tube；
6- waveguide liquid；7- fluorescent crystal stick；8- the second plated film window；The incident optical window of 9- second；The second plano-convex lens of 10-；11- second
Diode；12- first converges light；13- transverse light rays；The yellowish green light of 14-；15- second converges light.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment one:
As shown in Figure 1, the utility model discloses a kind of light supply apparatus based on fluorescent crystal pumping optical waveguide, if including
Drying hair penetrates the diode of pump light, further includes: pumping optical waveguide assembly；The plano-convex that the pump light waveguide end is arranged in is saturating
Mirror；The diode be distributed in the plano-convex lens protrusion front side and the pump light light by the plano-convex lens into
Enter the pumping optical waveguide assembly；The pumping optical waveguide assembly includes: quartz socket tube 5；The fluorescence for being built in quartz socket tube 5 is brilliant
Body stick 7；Seal two incident optical windows at 5 both ends of quartz socket tube；It is directed in quartz socket tube 5 and is submerged in the wave of fluorescent crystal stick 7
Drain body 6.
Preferably, the both ends that the plano-convex lens and the diode are co-located on the pumping optical waveguide assembly are formed
Two end-pumpings or any one end for being co-located on the pumping optical waveguide assembly form single-ended pumping.As shown in Fig. 2, this reality
The light transition diagram of light supply apparatus based on fluorescent crystal pumping optical waveguide disclosed in new embodiment.It can be with from Fig. 2
Find out, the present embodiment is two end-pumpings, and light is injected from the both ends of the pumping optical waveguide assembly respectively respectively.
Preferably, the pump light is projected by total 16 diodes of 4 rows 4 column, and the pump light includes but is not limited to indigo plant
Color laser.I.e. first diode 1 is the laser diode of 4X4 array, and the second diode 11 is in the pumping optical waveguide assembly
Other end is all the laser diode of 4X4 array, and reflection light enters the pumping optical waveguide to both ends laser diode simultaneously
Component can more efficiently provide the green-yellow light of needs.
Preferably, the diameter of the plano-convex lens is 50mm, and focal length 36mm is made of optical glass material；One or two
The light that pole pipe 1 emits forms the first convergence light 12 by the first plano-convex lens 2, and the light of the second diode 11 transmitting passes through
Second plano-convex lens 10 form the second convergence light 15, wherein the first convergence light 12 passes through first on the first incident optical window 3
Plated film window 4, the second convergence light 15 respectively enter institute by the second plated film window 8 on the second incident optical window 9, two light
State pumping optical waveguide assembly.
Preferably, the center line of the axle center of fluorescent crystal stick 7 and quartz socket tube 5 is the eccentric placement of non-same horizontal line,
In the present embodiment, it can be seen that fluorescent crystal stick 7 is located at the top half of quartz socket tube 5, and this design is by repeatedly
The optimum position obtained after experimental debugging sees that the center of circle of fluorescent crystal stick 7 and the center of circle of quartz ampoule are not weighed in cross-sectional direction
It closes, bias design can make fluorescent crystal stick 7 reach highest to the absorption efficiency of pump light.
Preferably, in order to enable the better absorption spectrum and emission spectrum of fluorescent crystal stick 7 separate and interval is little, light
Line transformation efficiency is higher.It include the yag crystal or lutetium aluminum doped with a certain amount of caesium metal ion in fluorescent crystal stick 7
Garnet crystal or ceramic crystal, fluorescent crystal stick 7 also have quantum efficiency high, and thermal conductivity is preferable and thermal stability is well etc. special
Point, in 600K temperature hereinafter, significant hot-quenching will not occur for the fluorescent crystal stick 7 of low doping concentration goes out.In the present embodiment, glimmering
Luminescent crystal stick 7 can emit the green-yellow light of 500-700nm wave band when absorbing blue laser, and peak value is in 536nm.
Preferably, fluorescent crystal stick 7 is cylindric and is fixed between described two incident optical windows, 7 liang of fluorescent crystal stick
The end face at end is by polishing treatment and is coated with 200 microns of thick metallic reflective coatings, and side handles by frosted and forms frosted glass
Surface.The light beam of 13 lateral transport of transverse light rays is reflected into waveguide in Fig. 2, thus prevent through pumping generate green-yellow light from
Two end face outgoing.The side frosted of fluorescent crystal stick 7 is handled, thus destroys the total internal reflection of coolant liquid-crystal bar interface
Condition.
Preferably, the incident optical window is metal copper sheet, and the metallic copper on piece offers several plated film windows, the plating
Film window outboard face is used to the pump light of anti-reflection incidence, and inner surface is used to the green-yellow light that high reflection is excited.The plated film window
The transmissivity for enough improving blue wave band, reduces the transmissivity of yellowish green optical band.
Preferably, the circular casing that the refractive index of quartz socket tube 5 is 1.4586,5 length of quartz socket tube are 80mm, and internal diameter is
7mm, outer diameter 8mm, pipe thickness 1mm.The waveguide liquid 6 of low-refraction is filled with to quartz socket tube 5, outside fluorescent crystal stick 7
Wall and quartzy inside pipe wall are full of waveguide liquid 6, and incident ray is emitted directly toward in waveguide liquid 6 from plated film window.Further, wave
Drain body 6 is refractive index for the pure water less than 5 refractive index of quartz socket tube, and the pump light is complete interior on 5 inner wall of quartz socket tube
Reflection constantly injects fluorescent crystal stick 7, so that fluorescent crystal stick 7 be enable sufficiently to inhale by multiple total internal reflection repeatedly
Pump energy is received, while also effectively reducing pump power density.The optical waveguide of waveguide liquid 6 has both cooling and guide-lighting work
With to realize that the laser pump (ing) of higher power provides feasible program.
Preferably, it pumps the pump light inside optical waveguide assembly to cool down by waveguide liquid 6, the pump light passes through
Fluorescent crystal stick 7 forms the lower blue green light of power density after absorbing, yellowish green light 14 is finally made from the side of fluorescent crystal stick 7
It is projected around for lambert's body light source.
Further, the diameter that fluorescent crystal stick 7 is is 2mm, and length is the cylinder of 80mm.Although this diameter is higher than glimmering
The optical absorption depth (absorption efficiency that will affect fluorescent crystal stick 7) of luminescent crystal, but it is limited to existing precise machining process, this
Thickness is optimal selection, and the absorption efficiency that can take into account crystal and the thermal stress deformation in thermal expansion are guaranteeing fluorescent crystal
Stick 7 will not because thermal expansion deformation burst apart feelings under the premise of, possess highest absorption efficiency.The design of pole shape is mainly
The sufficiently large lateral area of guarantee, biggish lateral area can provide the biggish plane of incidence for pump light source, improve and absorb energy,
The heat dissipation area of fluorescent crystal stick 7 can also be increased simultaneously, improve the heat exchange area of crystal item and cooling medium, significantly reduce heat
The risk of generation is quenched, improves system stability.In this example, quartz socket tube 5 is processed as circle, and quartz ampoule can be also processed
For ellipse or other faces type.
Through realistic simulation as a result, the absorptivity of fluorescent crystal stick 7 is up to 91.8% in quartz socket tube 5 in the present embodiment,
Higher pump light absorption efficiency may be implemented in growth optical waveguide appropriate.
Embodiment two:
The present embodiment and embodiment one the difference is that, the plano-convex lens and the diode are co-located on institute
Any one end for stating pumping optical waveguide assembly forms single-ended pumping, the principle and embodiment that light is converted in this design first is that
Identical, the structure only designed is simpler, but the efficiency converted is high not as good as embodiment, can be in the need of lower conversion
Implement under the conditions of asking.
The other structures of light supply apparatus based on fluorescent crystal pumping optical waveguide described in the present embodiment referring to the prior art,
This is repeated no more.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, therefore it is all without departing from the content of the technical scheme of the utility model, implement according to the technical essence of the utility model to above
Any modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by example.
Claims (9)
1. a kind of light supply apparatus based on fluorescent crystal pumping optical waveguide, the diode including several transmitting pump lights, feature
It is, further includes: pumping optical waveguide assembly；The plano-convex lens of the pump light waveguide end are set；The diode distribution
On front side of the protrusion of the plano-convex lens and the light of the pump light enters the pumping optical waveguide by the plano-convex lens
Component；
The pumping optical waveguide assembly includes: quartz socket tube；It is built in the fluorescent crystal stick of the quartz socket tube；Seal the stone
The incident optical window of two of English casing both ends；It is directed in the quartz socket tube and is submerged in the waveguide liquid of the fluorescent crystal stick.
2. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that
The fluorescent crystal stick is cylindric and is fixed between described two incident optical windows, the end at fluorescent crystal stick both ends
Face is by polishing treatment and is coated with 200 microns of thick metallic reflective coatings, and side handles by frosted and forms frosted glass surface.
3. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the incidence
Optical window is metal copper sheet, and the metallic copper on piece offers several plated film windows, the plated film window outboard face be used to it is anti-reflection enter
The pump light penetrated, inner surface are used to the green-yellow light that high reflection is excited.
4. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the quartz
The circular casing that the refractive index of casing is 1.4586, the quartz socket tube length are 80mm, internal diameter 7mm, outer diameter 8mm, pipe
Wall thickness is 1mm.
5. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the waveguide
Liquid is refractive index for the pure water less than the quartz socket tube refractive index, and the pump light is complete interior anti-on quartz socket tube inner wall
It penetrates.
6. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the pumping
Pump light inside optical waveguide assembly is cooled down by the waveguide liquid, and the pump light is inhaled by the fluorescent crystal stick
The lower blue green light of power density is formed after receipts, the blue green light is finally from the side of the fluorescent crystal stick as lambert's body light
It projects around in source.
7. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the pumping
Light is projected by total 16 diodes of 4 rows 4 column, and the pump light includes but is not limited to blue laser.
8. the light supply apparatus according to claim 1 based on fluorescent crystal pumping optical waveguide, which is characterized in that the plano-convex
The diameter of lens is 50mm, and focal length 36mm is made of optical glass material.
9. the light supply apparatus according to claim 2 based on fluorescent crystal pumping optical waveguide, which is characterized in that the fluorescence
The diameter that crystal bar is is 2mm, and length is the cylinder of 80mm.
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| CN201821401570.1U CN208986361U (en) | 2018-08-29 | 2018-08-29 | A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide |
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| CN201821401570.1U CN208986361U (en) | 2018-08-29 | 2018-08-29 | A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide |
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| CN208986361U true CN208986361U (en) | 2019-06-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899747A (en) * | 2018-08-29 | 2018-11-27 | 佛山市辉康光电技术有限公司 | A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899747A (en) * | 2018-08-29 | 2018-11-27 | 佛山市辉康光电技术有限公司 | A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 453014 No. 9, Dongzhuo Road, Hongqi District, Xinxiang City, Henan Province (No. 1 and No. 2 plants of Xindong Optoelectronic Information Industrial Park) (east of 107) Patentee after: HENAN BAIHE SPECIAL OPTICAL RESEARCH INSTITUTE CO.,LTD. Address before: 528000 Room 726, 7/F, Building B, No. 2, Lingnan Avenue South, Lecong Town, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN HUIKANG PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |