CN105045022B - Light-source system and its Wavelength converter - Google Patents
Light-source system and its Wavelength converter Download PDFInfo
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- CN105045022B CN105045022B CN201410763824.4A CN201410763824A CN105045022B CN 105045022 B CN105045022 B CN 105045022B CN 201410763824 A CN201410763824 A CN 201410763824A CN 105045022 B CN105045022 B CN 105045022B
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Abstract
The invention discloses a kind of light-source system, including solid-state light emitting element and Wavelength converter.Solid-state light emitting element is used to send first band light to light path.Wavelength converter is arranged at light path and including fluorescent plate.Fluorescent plate is the solid mixture with a fluorescent material and a binder, and wherein the percentage by weight of the fluorescent material is 10 to 70, and first band light is converted into second band light.Therefore, can effectively improve the heat transfer of fluorescent plate, and then promote the conversion efficiency of Wavelength converter, and rigid is enough to be applied to rotate.Meanwhile, in addition to it can reduce space requirement, the phenomenons such as hot spot and thermal diffusion can be also avoided, the manufacturing cost of Wavelength converter and manufacture difficulty is greatly reduced.
Description
Technical field
The present invention relates to a kind of light-source system, more particularly to a kind of light-source system and its Wavelength converter.
Background technology
In recent years, high-order projector mainly coordinates Wavelength converter as light-source system using LASER Light Source.Tradition
Wavelength converter can be divided mainly into two kinds：One is rotary fluorescent powder color wheel (Phosphor Wheel), secondly being solid
Fixed pattern fluorescent material colour table module (Phosphor Plate Module).
Fig. 1 and Fig. 2 is referred to, wherein Fig. 1 is the schematic diagram for showing existing rotary fluorescent powder color wheel, and Fig. 2 is aobvious
Show the schematic diagram of existing stationary type fluorescent pink colour plate module.In general, rotary fluorescent powder color wheel 1 is in circular high reflection base
On plate 10, the ad-hoc location of high reflection substrate 10 is coated on adhesive glue mixed fluorescent powder (or fluorescer) 11, then by high reflection
The center of circle of substrate 10 is arranged on motor 12, therefore rotary mode makes fluorescent powder color wheel 1 enter when wavelength convert is carried out
Row radiating.Because stationary type fluorescent pink colour plate module 2 cannot be radiated in a rotating manner, therefore fluorescent material colour table 21 is consolidated more
A surface of high reflection substrate 20 is located at, and fin 22 is set on the relative another surface of high reflection substrate 20, by laser
The high temperature that light source is produced disperses.
However, in rotary fluorescent powder color wheel 1, because the reliability of adhesive glue is low and poor heat conduction so that fluorescence
Heat transfer reduction between powder 11 and high reflection substrate 10, and then cause the conversion efficiency of the Wavelength-converting of fluorescent material 11 not good, together
When high reflection substrate 10 rigidity be likely to be not enough to deal with the situation about rocking produced by rotating；Additionally, fixed glimmering
In light pink colour plate module 2, due to fin 22 it is main by conduct and convection current in the way of radiated, therefore high reflection substrate 20 and dissipate
Backing 22 must select the element with relatively large surface area, often cause that space requirement surpasss the expectation, at the same also because of hot spot and
The phenomenons such as thermal diffusion so that the manufacturing cost and technical difficulty of stationary type fluorescent pink colour plate module 2 remain high.
The content of the invention
The content of the invention main object of the present invention is solved foregoing existing to provide a kind of light-source system and its Wavelength converter
There is technical problem.
Another object of the present invention is a kind of light-source system of offer and its Wavelength converter, by fluorescent plate with 10 to 70
The fluorescent material and binder of percentage by weight are made, and for first band light is converted into second band light, can effectively carry
The heat transfer of fluorescent plate high, and then promote the conversion efficiency of Wavelength converter, and rigid is enough to be applied to rotate.
Another object of the present invention to provide a kind of light-source system and its Wavelength converter, though the Wavelength converter with
Rotary type is applied, and need not still use fin, in addition to it can reduce space requirement, can also avoid hot spot and thermal diffusion etc. existing
As the manufacturing cost of Wavelength converter and manufacture difficulty is greatly reduced.
Another object of the present invention is a kind of light-source system of offer and its Wavelength converter, because the present invention is to fluorescent plate
Exiting surface be processed by shot blasting, to form polished surface, the light receiving efficiency of fluorescent plate can be made more preferably, it is related to fill wavelength convert
The conversion efficiency put effectively is lifted.
To reach above-mentioned purpose, a better embodiment of the invention is a kind of light-source system of offer, including：One solid-state is sent out
Optical element, for sending a first band light a to light path；And a Wavelength converter, be arranged at the light path and including
One fluorescent plate, the wherein fluorescent plate are the solid mixture with a fluorescent material and a binder, the wherein weight of the fluorescent material
Amount percentage is 10 to 70, and the first band light is converted into a second band light.
In certain embodiments, the binder is glass or aluminum oxide.Further, the binder also includes that ceramics are added
Agent.Additionally, the chemical formula of the glass is SiOx, 0<X≤2, and the refractive index n values of the glass are less than or equal to 1.5.
In certain embodiments, the fluorescent plate is ring-type fluorescent plate or sheet fluorescent plate.
Conception of the invention, the Wavelength converter also includes an optical coating, and it is glimmering that the optical coating is formed at this
One surface of tabula rasa.Wherein, the optical coating deposits or coats the surface of the fluorescent plate, and the optical coating is oppositely arranged
In the opposite side of an exiting surface of the fluorescent plate.
Design of the invention, the Wavelength converter also includes a substrate and an optical coating, and the substrate is formed in
The opposite side of the exiting surface of the fluorescent plate, and the optical coating is formed at the substrate.
In certain embodiments, the optical coating is relatively arranged on the opposite side of an exiting surface of the fluorescent plate, and this goes out
Smooth surface is a polished surface.
In certain embodiments, a air gap is formed between the optical coating on the fluorescent plate and the substrate.Wherein,
The air gap is formed in gluing or sandwiched mode.
Design of the invention, the Wavelength converter also includes setting an optical coating on a substrate, and the substrate,
And the fluorescent plate of the Wavelength converter is a ring-type fluorescent plate, the wherein fluorescent plate is arranged at the substrate.Additionally, the fluorescence
There is a air gap between plate and the substrate, and the fluorescent plate and the substrate are concentric circles.
Creation thought of the invention, the thickness of the fluorescent plate is more than or equal to 50 microns, and less than or equal to 1000
Micron.
To reach above-mentioned purpose, another better embodiment of the invention is a kind of Wavelength converter of offer, it is adaptable to
A light-source system of a first band light a to light path is sent, including：One fluorescent plate, is arranged at the light path, is used to receive
The first band light, the wherein fluorescent plate are the solid mixture with a fluorescent material and a binder, the wherein fluorescent material
Percentage by weight be 10 to 70, the first band light is converted into a second band light.
Conception of the invention, Wavelength converter also includes an optical coating, and the optical coating is formed at the fluorescence
One surface of plate.Wherein, the optical coating deposits or coats the surface of the fluorescent plate, and the optical coating is relatively arranged on this
The opposite side of one exiting surface of fluorescent plate, and the exiting surface is a polished surface.
Design of the invention, Wavelength converter also includes a substrate and an optical coating, the wherein optical coating
It is formed at the substrate.Wherein, the optical coating is relatively arranged on the opposite side of an exiting surface of the fluorescent plate, and the exiting surface is
One polished surface.
The present invention provides a kind of light-source system and its Wavelength converter, by fluorescent plate with 10 to 70 percentage by weights
Fluorescent material and binder are made, and for first band light is converted into second band light, can effectively improve the heat of fluorescent plate
Conduction, and then promote the conversion efficiency of Wavelength converter, and rigid is enough to be applied to rotate.Additionally, the wavelength convert
Though device is applied with rotary type, without fin is used, in addition to it can reduce space requirement, hot spot and thermal diffusion can be also avoided
Etc. phenomenon, the manufacturing cost of Wavelength converter and manufacture difficulty is greatly reduced.
Brief description of the drawings
Fig. 1 is the schematic diagram for showing existing rotary fluorescent powder color wheel；
Fig. 2 is the schematic diagram for showing existing stationary type fluorescent pink colour plate module；
Fig. 3 A be show present pre-ferred embodiments light source be system Organization Chart；
Fig. 3 B are the light-source system Organization Charts for showing another preferred embodiment of the invention；
Fig. 4 is the Wavelength converter schematic diagram for showing present pre-ferred embodiments；
Fig. 5 is the Wavelength converter schematic diagram for showing another preferred embodiment of the invention；
Fig. 6 is the Wavelength converter schematic diagram for showing another embodiment of the present invention；
Fig. 7 is the Wavelength converter schematic diagram for showing another preferred embodiment of the invention；
Fig. 8 is to show the schematic diagram that the air gap is formed in gluing mode；
Fig. 9 is to show the schematic diagram that the air gap is formed in sandwiched mode；
Figure 10 is the schematic diagram of the optical coating specular scattering light for showing penetration Wavelength converter；
Figure 11 is the schematic diagram of the optical coating specular scattering light for showing reflective Wavelength converter；
Figure 12 is the schematic diagram of the optical coating specular scattering light of the penetration Wavelength converter for showing tool substrate；
Figure 13 is the schematic diagram of the optical coating specular scattering light of the reflective Wavelength converter for showing tool substrate；
Figure 14 is the performance voltage-pulses width for showing Wavelength converter of the present invention and existing Wavelength converter
Corresponding diagram；
Figure 15 is the peak area-power corresponding diagram for showing Wavelength converter of the present invention.
Wherein, description of reference numerals is as follows：
1：Rotary fluorescent powder color wheel
10：High reflection substrate
11：Fluorescent material
12：Motor
2：Stationary type fluorescent pink colour plate module
20：High reflection substrate
21：Fluorescent material colour table
22：Fin
3：Light-source system
31：Solid-state light emitting element
32：Wavelength converter
321：Fluorescent plate
322：Optical coating
323：Substrate
324：Motor
325：Bonding layer
A：The air gap
C：Fixture
G：Viscose glue
L1：First band light
L2：Second band light
L20：Scattering light
L21：Large-angle scattered light
L22：Small angle scattering light
P：Light path
Specific embodiment
Embodying feature of present invention will in detail describe with some exemplary embodiments of advantage in the explanation of back segment.It should be understood that
It is that the present invention can have various changes in different implementation methods, it is neither departed from the scope of the present invention, and therein
Illustrate and illustrate to be treated as purposes of discussion in itself, not for the limitation present invention.
Fig. 3 A and Fig. 3 B are referred to, its light-source system Organization Chart and the present invention for showing present pre-ferred embodiments respectively
The light-source system Organization Chart of another preferred embodiment.As shown in Fig. 3 A and Fig. 3 B, light-source system of the invention 3 includes solid luminescent
Element 31 and Wavelength converter 32.Wherein, solid-state light emitting element 31 is used to send first band light L1 to light path P, and ripple
Conversion equipment long 32 is arranged at light path P.Wavelength converter 32 includes fluorescent plate 321, and the fluorescent plate 321 is with fluorescence
The solid mixture of powder and binder, the percentage by weight of wherein fluorescent material accounts for the gross weight 10 to 70 of fluorescent plate 321, and binder
Can be the glass for such as but not limited to accounting for the percentage by weight of 321 gross weight of fluorescent plate 30 to 90, or be aluminum oxide, but not with this
It is limited, first band light L1 is converted into second band light L2.Conception of the invention, Wavelength converter 32 can be to wear
Saturating formula Wavelength converter (as shown in Figure 3A) or reflective Wavelength converter (as shown in Figure 3 B), are so not limited thereto.
In other words, in the embodiment as shown in fig. 3 a, the exit direction phase of the incident direction of first band light L1 and second band light L2
Together；In the embodiment shown in figure 3b, the incident direction of first band light L1 is opposite with the exit direction of second band light L2.Cause
This, the Wavelength converter 32 of light-source system of the present invention 3 can effectively improve the heat transfer of fluorescent plate, and then promote wavelength convert dress
32 conversion efficiency is put, and rigid is enough to be applied to rotate.
In certain embodiments, the binder can be as described above glass or aluminum oxide, can also further include ceramic addition
Agent such as BaSO4, AlN, BN etc., are used to promote radiating effect.Wherein, the chemical formula of glass is SiOx, 0<X≤2, and the glass
Refractive index n values are less than or equal to 1.5；The chemical formula of aluminum oxide is Al2O3.Compared to glass and fluorescent material that LED field is used
The application of combination, because LED field is at least more than or equal to 2 to the refractive index n values demand of glass, therefore invention of the invention is smart
Refreshing and significant difference actually opposite with the application of LED field.In other words, the R＆D direction of Wavelength converter of the present invention 32 with
The R＆D direction of LED field is different, and the technical problem for wanting to overcome is also different.
Fig. 4 and Fig. 5 is referred to, wherein Fig. 4 is the Wavelength converter schematic diagram for showing present pre-ferred embodiments, Fig. 5
It is the Wavelength converter schematic diagram for showing another preferred embodiment of the invention.In certain embodiments, wavelength of the invention turns
Changing device 32 is adopted without substrate design, and can further include optical coating 322, and the optical coating 322 is formed at fluorescent plate 321
One surface, and fluorescent plate 321 be sheet fluorescent plate (as shown in Figure 4) or ring-type fluorescent plate (as shown in Figure 5), so not as
Limit.Specifically, optical coating 322 deposits or coats the surface of fluorescent plate 321, and optical coating 322 be relatively arranged on it is glimmering
The opposite side of one exiting surface of tabula rasa 321, that is, the surface is arranged at the opposite side being oppositely arranged with exiting surface.
Fig. 6 and Fig. 7 is referred to, wherein Fig. 6 is the Wavelength converter schematic diagram for showing another embodiment of the present invention,
Fig. 7 is the Wavelength converter schematic diagram for showing another preferred embodiment of the invention.In these embodiments, wavelength of the present invention turns
The fluorescent plate 321 of changing device 32 is sheet fluorescent plate (as shown in Figure 6) or ring-type fluorescent plate (as shown in Figure 7).Wavelength convert is filled
Putting 32 can further include optical coating 322 and substrate 323, and the optical coating 322 is formed on the substrate 323.More accurately
Say, optical coating 322 is relatively arranged on the opposite side of the exiting surface of fluorescent plate 321.On the other hand, Wavelength converter 32 can enter
One step includes a bonding layer 325, is arranged between optical coating 322 and substrate 323, and the bonding layer 325 is preferably titanium dioxide
Silicon (SiO2) or titanium dioxide (TiO2)。
In the embodiment shown in above-mentioned Fig. 4 to Fig. 7, when penetration Wavelength converter is applied to, optical coating 322
Preferably light splitting coating, so that first band light L1 is penetrated and reflected second band light L2；Conversely, work as being applied to reflective wavelength
During conversion equipment, optical coating 322 is preferably reflection coating or light splitting coating, to reflect first band light L1 and second comprehensively
Band of light L2 or only reflection second band light L2.
Fig. 8 and Fig. 9 is referred to, wherein Fig. 8 is to show the schematic diagram that the air gap is formed in gluing mode, and Fig. 9 is aobvious
Show the schematic diagram that the air gap is formed in sandwiched mode.As can be seen from figures 8 and 9, between fluorescent plate 321 and optical coating 322
A air gap A is formed, to promote optical property, for example, changes refractive index n values, but be not limited.Wherein, the air gap
The generation type of A can be used viscose glue G and be formed in gluing (as shown in Figure 8) mode in part, can also sandwiched mode make fluorescent plate
Both 321 and optical coating 322 close-fittings simultaneously make surface self-assembling formation the air gap A therebetween, but form the mode of the air gap A simultaneously
It is not limited.
Referring again to Fig. 3 A to Fig. 9.Conception of the invention, Wavelength converter of the invention 32 can be arranged on motor
34 axle center, for carrying out rotary applications.So, though Wavelength converter of the present invention 32 is applied with rotary type, still without
Fin must be used, in addition to it can reduce space requirement, the phenomenons such as hot spot and thermal diffusion can be also avoided, makes Wavelength converter 32
Manufacturing cost and manufacture difficulty are greatly reduced.
Figure 10 and Figure 11 is referred to, wherein Figure 10 is the optical coating specular scattering light for showing penetration Wavelength converter
Schematic diagram, Figure 11 is the schematic diagram of the optical coating specular scattering light for showing reflective Wavelength converter.Such as Figure 10 and figure
Shown in 11, after the fluorescent plate 321 of Wavelength converter 32 receives first band light L1, first band light L1 is excited into conversion
It is second band light L2, wherein the second band light L2 frameworks are full angle scattering, when scattering light L20 backscatterings to optics are applied
During layer 322, scattering light L20 is reflected toward exiting surface and exported by optical coating 322, so when the reflection of optical coating 322 is imitated
When rate is higher, the wavelength conversion efficiency of Wavelength converter 32 is also better.
Figure 12 and Figure 13 is referred to, wherein Figure 12 is that the optical coating of the penetration Wavelength converter for showing tool substrate is anti-
The schematic diagram of scattering light is penetrated, Figure 13 is showing for the optical coating specular scattering light of the reflective Wavelength converter for showing tool substrate
It is intended to.As shown in FIG. 12 and 13, after the fluorescent plate 321 of Wavelength converter 32 receives first band light L1, by first
Band of light L1 is excited and is converted to second band light L2, and wherein the second band light L2 frameworks are full angle scattering, when wide-angle dissipates
When penetrating light L21 backscatterings to the air gap A, large-angle scattered light L21 is produced because of the air gap A and is totally reflected and past light extraction
Face exports.Additionally, when small angle scattering light L22 backscatterings are to optical coating 322, small angle scattering light L22 receives optics
Coating 322 reflects toward exiting surface and exports.In other words, by formed the air gap A fluorescent plate 321 and optical coating 322 it
Between, large-angle scattered light L21 is reflected using total reflection principle and application is exported, to promote Wavelength converter of the present invention 32
Wavelength conversion efficiency.
Design of the invention, fluorescent material can be monocrystalline fluorescent material or polycrystalline fluorescent material.Additionally, in fluorescent plate 321
In processing procedure, functional additive, such as BN, AlN or BaSO can be also added4Deng, but be not limited.Additionally, optical coating 322
Composition be preferably selected from gold, silver, aluminium or its ethnic group being combined at least one, and also selected from dielectric coating material,
For providing good optical reflecting power.In certain embodiments, substrate 323 can be metal substrate, ceramic substrate, wafer
Substrate or synthetic substrate etc..Metal substrate can be gold, silver, aluminium or its alloy, and ceramic substrate can be AlN, BN or Al2O3Deng brilliant
Physa plate can be Silicon Wafer, the Silicon Wafer of diamond coating, sic wafer, carborundum and Graphene wafer or any iii-v
Semiconductor crystal wafer, and synthetic substrate can be graphite substrate, aluminium and graphite substrate or carborundum and graphite substrate, but not
As limit.
In certain embodiments, the thickness of the fluorescent plate 321 of Wavelength converter of the present invention 32 is with micro- more than or equal to 50
Rice, and be preferred less than or equal to 1000 microns.In further embodiments, fluorescent plate 321 is with the fluorescent material of 20 percentage by weights
And 80 the glass sintering of percentage by weight be made, and fluorescent plate 321 thickness and diameter with 540 microns and 10 centimeters be compared with
It is good, but be not limited.Experimental result according to the present embodiment shows, though the fluorescent material of fluorescent plate of the invention 321 only accounts for whole
The percentage by weight of body weight 20, so accounts for the form of about 70 percentage by weights, you can have at least compared to fluorescent material in the prior art
15% gain, because fluorescent material ratio of the invention may actually be 10 to 70 percentage by weights, and the thickness of fluorescent plate 321 can
It is 50 to 1000 microns, therefore its maximum gain is more than that.
On the other hand, it is the optical property of enhancement Wavelength converter 32 of the present invention, light extraction of the present invention to fluorescent plate 321
Face is processed by shot blasting, so that the exiting surface is formed as a polished surface.Therefore, the light receiving efficiency of fluorescent plate 321 can be made more preferably,
The related conversion efficiency for making Wavelength converter 32 is effectively lifted.
Figure 14 is referred to, it is the performance electricity for showing Wavelength converter of the present invention and existing Wavelength converter
Pressure-pulse width corresponding diagram.As shown in figure 14, solid-state light emitting element 31 is LASER Light Source, and the driving current of LASER Light Source is
2.3 amperes and power output are 3.5 watt-hours, because the radiating effect of traditional adhesive type fluorescent powder color wheel is worst, therefore its performance
Performance decay is most fast, and generally speaking the performance of traditional adhesive type fluorescent powder color wheel is worst.Additionally, according to YAG fluorescent powder
Pure phosphor colour wheel is made, its performance is common, but the more traditional adhesive type fluorescent powder color wheel of decline problem is small, property
Can show apparently higher than traditional adhesive type fluorescent powder color wheel.On the other hand, filled with the wavelength convert of foregoing embodiments of the present invention
Put 32 to be tested, hence it is evident that can be seen that not only performance is higher than pure phosphor colour wheel, and decline rate and amplitude are also three
Middle minimum, be with Wavelength converter of the invention 32 compared to traditional adhesive type fluorescent powder color wheel and pure phosphor colour wheel,
With optimal performance.
Figure 15 is referred to, it is the peak area-power corresponding diagram for showing Wavelength converter of the present invention.Such as Figure 15 institutes
Show, Wavelength converter of the invention 32, when being applied to high-energy light origin system, when solid-state light emitting element 31 power output not
During disconnected raising, overall peaks performance is substantially linear growth, and is shown according to experimental result, Wavelength converter of the invention
The 32 high power environment that at least can be applied to 60 watts.
In sum, the present invention provides a kind of light-source system and its Wavelength converter, by fluorescent plate with 10 to 70 weights
The fluorescent material and binder for measuring percentage are made, and for first band light is converted into second band light, can effectively improve
The heat transfer of fluorescent plate, and then promote the conversion efficiency of Wavelength converter, and rigid is enough to be applied to rotate.Additionally,
Though the Wavelength converter is applied with rotary type, fin need not be still used, in addition to it can reduce space requirement, can also avoided
The phenomenon such as hot spot and thermal diffusion, is greatly reduced the manufacturing cost of Wavelength converter and manufacture difficulty.Further, due to
The present invention is processed by shot blasting to the exiting surface of fluorescent plate, to form polished surface, can make the light receiving efficiency of fluorescent plate more preferably, even
Band makes the conversion efficiency of Wavelength converter effectively carry.
Even if the present invention is described in detail by the above embodiments, can be closed by the inventive concept of those skilled in the art
The modification or modification of reason, but without departure from protection the scope of the claims institute content to be protected of the application claim.
Claims (13)
1. a kind of light-source system, it is characterised in that including：
One solid-state light emitting element, for sending a first band light a to light path；And
One Wavelength converter, is arranged at the light path and including a fluorescent plate, wherein the fluorescent plate be with a fluorescent material and
One solid mixture of one binder, the wherein percentage by weight of the fluorescent material are 10 to 70, the percentage by weight of the binder
It is 30 to 90, the first band light is converted into a second band light,
Wherein the Wavelength converter also includes a substrate and an optical coating, and the substrate is formed in the exiting surface of the fluorescent plate
Opposite side, the optical coating is formed at the substrate, between forming an air between the optical coating on the fluorescent plate and the substrate
Gap.
2. light-source system as claimed in claim 1, the wherein binder are glass or aluminum oxide.
3. light-source system as claimed in claim 2, the wherein binder also include ceramic additive.
4. light-source system as claimed in claim 2, the wherein chemical formula of the glass are SiOx, 0<X≤2, and the glass refraction
Rate n values are less than or equal to 1.5.
5. light-source system as claimed in claim 1, the wherein fluorescent plate are ring-type fluorescent plate or sheet fluorescent plate.
6. light-source system as claimed in claim 1, the wherein exiting surface are a polished surface.
7. light-source system as claimed in claim 1, the wherein the air gap is formed in gluing or sandwiched mode.
8. light-source system as claimed in claim 1, the wherein Wavelength converter also include a bonding layer, and the bonding layer is set
Between the optical coating and the substrate.
9. light-source system as claimed in claim 8, the wherein bonding layer are silica or titanium dioxide.
10. light-source system as claimed in claim 1, the wherein thickness of the fluorescent plate are more than or equal to 50 microns, and less than or
Equal to 1000 microns.
11. a kind of Wavelength converters, it is adaptable to send a light-source system of a first band light a to light path, its feature exists
In, including：
One fluorescent plate, is arranged at the light path, is used to receive the first band light, wherein the fluorescent plate be with a fluorescent material and
One solid mixture of one binder, the wherein percentage by weight of the fluorescent material are 10 to 70, the percentage by weight of the binder
It is 30 to 90, the first band light is converted into a second band light；
One substrate, the substrate is formed in the opposite side of the exiting surface of the fluorescent plate；And
One optical coating, the optical coating is formed at the substrate, is formed between the optical coating on the fluorescent plate and the substrate
One the air gap.
12. Wavelength converters as claimed in claim 11, the wherein exiting surface are a polished surface.
13. Wavelength converters as claimed in claim 11, also including a bonding layer, the bonding layer is arranged at the optical coating
And between the substrate, and the bonding layer is silica or titanium dioxide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461984418P | 2014-04-25 | 2014-04-25 | |
| US61/984,418 | 2014-04-25 |
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| Publication Number | Publication Date |
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| CN105045022A CN105045022A (en) | 2015-11-11 |
| CN105045022B true CN105045022B (en) | 2017-07-04 |
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| CN201410763824.4A Active CN105045022B (en) | 2014-04-25 | 2014-12-11 | Light-source system and its Wavelength converter |
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| CN (1) | CN105045022B (en) |
| TW (1) | TWI617059B (en) |
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|---|---|---|---|---|
| KR20230084323A (en) | 2016-03-02 | 2023-06-12 | 마테리온 코포레이션 | Optically enhanced light converter |
| GB2568171B (en) * | 2016-06-01 | 2021-11-03 | Canon Kk | Wavelength conversion element, light source apparatus, and image projection apparatus |
| EP3475988B1 (en) * | 2016-06-22 | 2022-08-10 | Lumileds LLC | Lighting system |
| CN109696792B (en) | 2017-10-24 | 2022-03-29 | 中强光电股份有限公司 | Projector and wavelength conversion device |
| CN107859967A (en) * | 2017-11-27 | 2018-03-30 | 深圳市齐尚光科技有限公司 | A kind of car headlamp |
| CN112578552A (en) | 2019-09-30 | 2021-03-30 | 台达电子工业股份有限公司 | Wavelength conversion device |
| CN112578551A (en) | 2019-09-30 | 2021-03-30 | 台达电子工业股份有限公司 | Wavelength conversion device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI280425B (en) * | 2002-12-20 | 2007-05-01 | Hon Hai Prec Ind Co Ltd | Method of fabricating light guide plate having diffusion function |
| US7341878B2 (en) * | 2005-03-14 | 2008-03-11 | Philips Lumileds Lighting Company, Llc | Wavelength-converted semiconductor light emitting device |
| US8556437B2 (en) * | 2009-12-17 | 2013-10-15 | Stanley Electric Co., Ltd. | Semiconductor light source apparatus and lighting unit |
| US9028083B2 (en) * | 2010-12-29 | 2015-05-12 | 3M Innovative Properties Company | Phosphor reflector assembly for remote phosphor LED device |
| KR20120113115A (en) * | 2011-04-04 | 2012-10-12 | 엘지전자 주식회사 | Light source apparatus and method for manufacturing the same |
| US9365766B2 (en) * | 2011-10-13 | 2016-06-14 | Intematix Corporation | Wavelength conversion component having photo-luminescence material embedded into a hermetic material for remote wavelength conversion |
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2014
- 2014-12-11 CN CN201410763824.4A patent/CN105045022B/en active Active
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Also Published As
| Publication number | Publication date |
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| TWI617059B (en) | 2018-03-01 |
| CN105045022A (en) | 2015-11-11 |
| TW201541669A (en) | 2015-11-01 |
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