CN104676492A - Wavelength conversion device and light-emitting device - Google Patents
Wavelength conversion device and light-emitting device Download PDFInfo
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- CN104676492A CN104676492A CN201510071022.1A CN201510071022A CN104676492A CN 104676492 A CN104676492 A CN 104676492A CN 201510071022 A CN201510071022 A CN 201510071022A CN 104676492 A CN104676492 A CN 104676492A
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- fin
- wavelength
- air
- rotating disk
- wavelength convert
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
Abstract
The invention provides a wavelength conversion device and a light-emitting device. The wavelength conversion device comprises a wavelength conversion turntable and a motor, wherein the motor is used for driving the wavelength conversion turntable to rotate; the wavelength conversion turntable comprises a series of first ribs which are arrayed in the circumferential direction of the wavelength conversion turntable and are used for generating air flow which outwards flows in the radial direction when the wavelength conversion turntable rotates. The wavelength conversion device further comprises a shell for closing the wavelength conversion turntable in the shell. By the rotation of the wavelength conversion turntable and the air flow formed by the first ribs as well as an air flow loop formed by guiding the air flow by air channels formed by the first ribs and the shell, the air flow can effectively transmit heat of the wavelength conversion turntable to the shell.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to the light-emitting device of a kind of Wavelength converter and this Wavelength converter of use.
Background technology
Utilize LASER Excited Fluorescence colour wheel to produce the sequential light of high brightness, be project at present industry generally acknowledge higher source luminance solution of future generation.The program compares traditional mercury lamp or xenon lamp, has high brightness, long-life advantage.In this scheme, high intensity laser beam is incident in the fluorescence colour wheel of uniform rotation, and the fluorescent material that such benefit is everywhere in a rotation period, all only by a moment of laser excitation, effectively avoids fluorescence overheated and lost efficacy.
In this system, fluorescence colour wheel is a core optical component, and its reliability determines the performance of whole light source module.Because fluorescence colour wheel is high-speed rotation, and itself sends again a large amount of heat, in therefore current scheme fluorescence colour wheel be all open exposure in air, a bit of light path namely at least before and after fluorescence colour wheel is exposed in air.Have a large amount of steam and dust in air, the lower meeting that works long hours forms hidden danger to the reliability of this section of light path.And directly with a shell, this section of light path is closed, then the air themperature closed around fluorescence colour wheel can be caused acutely to rise, not only affect the efficiency of fluorescence colour wheel, also impact drives the service life of the motor of colour wheel rotation.
Summary of the invention
The object of the invention is to realize closing of Wavelength converter and heat radiation by rational heat dissipation design simultaneously.
The present invention proposes a kind of Wavelength converter, comprises wavelength convert rotating disk and motor, and motor is for driving wavelength convert dial rotation; Wavelength convert rotating disk comprises a series of first fins along the arrangement of wavelength convert disk peripheral direction, wherein the trend of at least part of first fin is the radial direction along wavelength convert rotating disk, for producing the air-flow radially outwards flowed out when wavelength convert dial rotation.Also comprise shell, for being closed therein by wavelength convert rotating disk.This shell comprises the first optical transmission window for receiving exciting light, and this first optical transmission window transmission can play again the effect of closed wavelength convert rotating disk to exciting light simultaneously.
The present invention also proposes a kind of light-emitting device, comprises excitation source and above-mentioned Wavelength converter, and the exciting light that excitation source sends is incident in wavelength convert rotating disk through the first optical transmission window of the shell of Wavelength converter and makes it be excited to produce Stimulated Light.
Utilize the air-flow that the rotation of wavelength convert rotating disk and the first fin are formed, and utilize the first fin, air channel that shell is formed guides formation gas flow loop to this air-flow, and this air-flow can be made effectively to be delivered on shell by the heat of wavelength convert rotating disk.
Accompanying drawing explanation
Figure 1A is the structural representation of the first embodiment of Wavelength converter of the present invention;
Figure 1B is the arrangement front view of the first fin in Figure 1A illustrated embodiment;
Fig. 1 C is the arrangement front view of the second fin in Figure 1A illustrated embodiment;
Fig. 1 D is the front view of Figure 1A illustrated embodiment medium wavelength conversion layer;
Fig. 1 E and Fig. 1 F is other two kinds of possible arrangement front views of the first fin in Figure 1A illustrated embodiment;
Fig. 2 A is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 2 B is the arrangement front view of the second fin in Fig. 2 A illustrated embodiment;
Fig. 3 is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 4 A is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 4 B is the arrangement front view of the first fin in Fig. 4 A illustrated embodiment;
Fig. 4 C is the arrangement front view of the second fin in Fig. 4 A illustrated embodiment;
Fig. 5 A is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 5 B is the arrangement front view of the second fin in Fig. 5 A illustrated embodiment;
Fig. 6 A is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 6 B is the arrangement front view of the second fin in Fig. 6 A illustrated embodiment;
Fig. 7 is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 8 is the structural representation of another embodiment of Wavelength converter of the present invention;
Fig. 9 is the structural representation of another embodiment of Wavelength converter of the present invention.
Detailed description of the invention
The structural representation of the first embodiment of Wavelength converter of the present invention as shown in Figure 1A.This Wavelength converter comprises wavelength convert rotating disk 101 and motor 105, and motor 105 rotates for driving wavelength convert rotating disk 101.Wavelength convert rotating disk 101 comprises a series of first fins 103 along the arrangement of wavelength convert disk peripheral direction, the front view of the first fin as shown in Figure 1B, wherein the trend of at least part of first fin 103 is the radial direction along wavelength convert rotating disk, for producing the air-flow (representing with arrow 141a in figs. 1 a and 1b) radially outwards flowed out when wavelength convert dial rotation.When wavelength convert rotating disk 101 is driven rotation by motor 105, air between the first adjacent fin 103 can flow out along the trend of the first fin to the periphery of wavelength convert rotating disk due to centrifugal force, flows between the first fin because negative pressure has the air of the first fin near one end of wavelength convert center of turntable simultaneously.This part flows in the heat that Wavelength converter can produce by the air-flow between the first fin and takes away along air current flow direction, the air-flow simultaneously flowed out from wavelength convert turntable periphery can added by wavelength convert rotating disk and the first fin heat.
In the present embodiment, first fin is centripetal direction, but may not be completely centripetal (such as shown in Fig. 1 E) in practical application, or may be bending (such as shown in Fig. 1 F) or other shape, this can design according to existing method.What deserves to be explained is, in the present invention, the trend of the first fin is the radial direction along wavelength convert rotating disk, the one end referring to the first fin is less than the distance of its other end to wavelength convert center of turntable to the distance of wavelength convert center of turntable, produces the object of the air-flow radially outwards flowed out when so just can be implemented in wavelength convert dial rotation.Air-flow radially outwards flows out and is also not limited only to flow out along centrifugal direction herein, and such as, air-flow 141a in Fig. 1 E and 1F, just can achieve the goal as long as outwards flow out from wavelength convert turntable periphery.Therefore, as long as the first fin meeting above-mentioned requirements just belongs to protection scope of the present invention.
The Wavelength converter of the present embodiment also comprises shell 121, for being closed therein by wavelength convert rotating disk 101.The inwall of this shell 121 comprises a series of second fin 123, the second adjacent at least partly fin forms air channel, the first fin one end near the center of circle is got back at least in part for guiding the air-flow 141a radially outward flowed out from wavelength convert rotating disk 101 in this air channel, form air-flow 141b, to form gas flow loop, again flow between the first fin.In the present embodiment, the second fin top view as shown in Figure 1 C.Can find out with reference to Figure 1A and Fig. 1 C simultaneously, by the air-flow 141a heated enter into the second fin behind the air channel that formed, first can guide by this air channel (the lower direction in Figure 1A) flowing downwards, and then bend to direction, the center of circle, the air channel that last the second fin (as shown in Figure 1 C) radially arranged is formed is to the flowing of direction, the center of circle, and the final gas flow loop that formed flow between the first fin again.In this process, air-flow 141b can transfer heat to the second fin 123 and shell 121, and the temperature of air-flow can reduce due to spreading out of of heat simultaneously.Therefore when this air-flow 141b enters next airflow circulating again (when entering between the first fin), it becomes cold air, so just can continue the heat of absorbing wavelength conversion rotating disk and the first fin when forming air-flow 141a.
In sum, utilize the air-flow that the rotation of wavelength convert rotating disk and the first fin are formed, and utilize the first fin, air channel that the second fin is formed guides formation gas flow loop to this air-flow, and this air-flow can be made effectively to be delivered on shell by the heat of wavelength convert rotating disk.Like this while achieving use shell seal wavelength convert colour wheel, heat effectively can be dispersed on shell again, ensure that the service life of wavelength conversion efficiency and motor.
As shown in Figure 1A, wavelength convert rotating disk 101 comprises wavelength conversion layer 102.Wherein, shell 121 comprises the first optical transmission window 125 for receiving exciting light 161, and this first optical transmission window transmission can play again the effect of closed wavelength convert rotating disk to exciting light simultaneously.Such as in the present embodiment, the first optical transmission window is convex lens 125, it can transmission focused activating light 161 on wavelength conversion layer 102, also can play the effect of closed wavelength convert rotating disk 101 simultaneously.In actual applications, the first optical transmission window also can be transparent glass sheet, or other printing opacity components and parts, does not limit herein.
As shown in figure ip, visible wavelength conversion layer 102 is exactly the annular coating depending on wavelength convert rotating disk to the top view of wavelength conversion layer 102.With reference to Figure 1A, when exciting light 161 is incident in wavelength conversion layer through the first optical transmission window 125, along with wavelength convert dial rotation, each only meeting that is excited a little of wavelength conversion layer be excited in the moment of the light path turning to exciting light 161 and generate heat, cooling is just started after turning round, until next cycle forwards to after exciting light light path again luminous again, the mode of excitation of this pulsed makes the temperature of wavelength conversion layer can not be too high, ensure that luminous efficiency.As can be seen here, ingenious part of the present invention is also, motor 105 drives wavelength convert rotating disk 101 to rotate can reach two effects simultaneously: make wavelength conversion layer work in pulse mode to ensure its luminous efficiency, also creates simultaneously and flows in air-flow on the first fin and the second fin to realize heat exchange.
In the present embodiment, wavelength conversion layer 102 is uniform annulars, and in actual applications, also may be the ring segment of the multistage circumferentially distributed, each ring segment comprises different wavelength convert attributes, such as different material for transformation of wave length or different formulas, even may not comprise material for transformation of wave length and exciting light directly be reflected or transmission and form the part of emergent light.Like this, along with the rotation of wavelength convert rotating disk, different ring segments is excited optical excitation and produce different colours light periodically successively, and this has specific application in Projection Display.
Another embodiment of Wavelength converter of the present invention is as Fig. 2 A.With the embodiment shown in Figure 1A unlike, the second fin 223 on shell 221 inwall of the Wavelength converter of the present embodiment more simplifies, and Fig. 2 B is the arrangement front view of the second fin.Specifically, with reference to figure 2A and 2B, the second fin 223 comprises the first boot segment 223, this first boot segment near the first fin 203 one end away from the center of circle, the air-flow produced during for receiving wavelength convert dial rotation.First boot segment of the second adjacent fin 223 forms the first air channel, and this first air channel guides the air-flow flowed into turn to towards one end near the center of circle of the first fin, and forms air-flow 241a.After this air-flow flows out the second fin, air-flow 241b can be formed because the first fin rotates the negative pressure that produces, thus be inhaled between the first fin, formation gas flow loop.
Compared with embodiment shown in the present embodiment with Figure 1A, get rid of the second fin near air-flow 241b, such benefit is weight saving, but the heat exchange degree that problem is air-flow 241 and shell reduces, and the temperature that air-flow 241b blows into the first fin is slightly higher than the situation of Figure 1A.
Another embodiment of Wavelength converter of the present invention as shown in Figure 3.With Figure 1A illustrated embodiment unlike, the second fin 323 of shell 321 inwall comprises one end of the second boot segment 323, second boot segment near the first fin one end close to the center of circle, for effluent stream 341b to the first fin 303 to form gas flow loop.Second boot segment of the second adjacent fin forms the second air channel, and the air-flow 341a produced during wavelength convert dial rotation guides along the radial direction of wavelength convert rotating disk to one end close to the center of circle of the first fin 303 thus forms air-flow 341b by this second air channel.
In the present embodiment, shell 321 comprises depression 321a, flows into the second boot segment 323 for better guiding air-flow 341a.In fact, even without depression 321a, because the air-flow 341a that exists of negative pressure also can most inflow second boot segment 323, and the 231a that caves in improves the throughput of inflow second boot segment.
Can find out in conjunction with Figure 1A, Fig. 2 A and Fig. 3, in fact the second fin in Figure 1A is just equal to the combination of the second fin in Fig. 2 A and the second fin in Fig. 3, namely the second boot segment 323 in Fig. 3 may be used for receiving the air-flow flowed out in the first boot segment 223 in Fig. 2 A, so also just constitutes the gas flow loop the same with Figure 1A and heat exchange method.
Preferably, in the present embodiment shown in Fig. 3, second air channel comprises the demarcation strip 323a between second boot segment and the first fin of the second fin, for air-flow contrary for the flow direction in the first fin and the second fin is separated, its benefit is better to have guided the flow direction of air-flow, thus makes heat exchange more efficient.
Comprehensive above-mentioned several embodiment can be found out, there is multiple possibility in the particular location of the second fin, as long as the second adjacent at least partly fin forms air channel, and the first fin one end near the center of circle is got back to form gas flow loop at least in part for guiding the air-flow radially outward flowed out from wavelength convert rotating disk in this air channel, just meet requirement of the present invention, just can produce the beneficial effect of heat exchange.
In previous embodiment, the first fin or the second fin are that circumference is symmetrical all substantially, and namely heat exchange occurs in circumferentially whole.In practice, heat exchange also can occur on part-circular periphery, as shown in Figure 4 A.In Wavelength converter shown in Fig. 4 A, shell 421 also comprises the second optical transmission window 427, for through the light 463 from the transmission of wavelength convert rotating disk.Wherein, the front view of the second fin of wavelength convert rotating disk 401 and shell respectively as shown in Figure 4 B and 4C.As compared to the embodiment shown in Figure 1B with Fig. 1 C, the first fin 403 on the wavelength convert rotating disk 401 shown in Fig. 4 B serves the effect forming air-flow equally, but unlike wavelength convert colour wheel also comprising an annular transparent area 401a; Correspond, the second fin 423 on shell 421 inwall serves equally and guides gas to flow to effect near the center of circle, but unlike also comprising the second optical transmission window 427.Like this, when wavelength convert dial rotation, annular transparent area 401a periodically through the light path of exciting light 461, this annular transparent area of now exciting light transmission the second optical transmission window 427 outgoing of transmitting case.In this present embodiment, the first fin 403 and the second fin 423 are not that circumference is symmetrical, but cover only part-circular periphery, namely only effectively carry out heat exchange in part-circular periphery region; Experiment proves that this situation also can realize heat exchange efficiently, can't have much impact to radiating effect.
In the above-described embodiments, the air-flow that air channel that the first fin is formed is flowed out, is all through twice bendings of 90 degree and turns to and flow to the first fin one end near the center of circle afterwards, and in fact this is not unique mode.Other gas flow loop mode will be set forth in the embodiment shown in Fig. 5 A to Fig. 6 B below.
The structure of an alternative embodiment of the invention as shown in Figure 5A.Wherein, the second fin 523 of the inwall of shell 521, its front view as shown in Figure 5 B.Air-flow trend between the first fin is identical with previous embodiment, and the air-flow trend between the second fin is divided into air-flow 541a and 541b two sections.As shown in Figure 5 B, the air-flow flowed out is guided first to flow into the second fin 523 from the first fin, and the air channel formed via the second fin 523 guides circumferentially to flow in the periphery of wavelength convert rotating disk and forms air-flow 541a, and then as shown in Figure 5 A and 5B, flow out downwards from the second fin 523 and flow into formation air-flow 541b to the center of circle.
The structure of an alternative embodiment of the invention as shown in Figure 6A.Wherein, the air channel between the second fin 623 of shell 621 inwall also along the circumferential direction extends.Air-flow trend between the first fin is identical with previous embodiment, and the air-flow trend between the second fin is divided into air-flow 641a and 641b two sections.As shown in Figure 6B, the air-flow flowed out is guided first to flow into the second fin 623 from the first fin, and the air channel formed via the second fin 623 guides circumferentially to flow in the periphery of wavelength convert rotating disk and forms air-flow 641a, and then as shown in Figure 6 A and 6B, flow out downwards from the second fin 623 and flow into formation air-flow 641b to the center of circle.
In sum, the arrangement mode of the second fin and the type of flow of air-flow of housing inwall of the present invention all have multiple choices, those skilled in the art spirit according to the present invention can carry out oneself design completely, and the embodiment therefore given by the present invention is just illustrated and is not construed as limiting the invention.
In the above-described embodiments, the second adjacent at least partly fin forms air channel, the first fin one end near the center of circle is got back to form gas flow loop at least in part for guiding the air-flow radially outward flowed out from wavelength convert rotating disk in this air channel, again flows between the first fin.And in fact, even without the guiding of the second fin, because the first fin is near the existence of the negative pressure at one end place in the center of circle and the malleation of wavelength convert turntable periphery, air-flow naturally can get back to the first fin one end near the center of circle from wavelength convert turntable periphery, and the guiding of the second fin is can better and shell generation heat exchange in the process making this airflow reflux.
Therefore in another embodiment of the present invention (its structure is as shown in Figure 9), relative to the embodiment shown in Figure 1A unlike, the second fin on the inwall of shell 921 is deleted; Now, due to the air-flow 941a that the rotation of wavelength convert rotating disk 901 and the existence of the first fin 903 produce, can air-flow 941b be formed due to the reason of draught head and be back to the first fin one end near the center of circle to form gas flow loop.Also certain heat exchange can be there is with the inwall of shell in the flow process of air-flow 941b.Therefore, while the present embodiment also can reach and use shell seal wavelength convert colour wheel, heat effectively can be dispersed on shell again, ensure that the effect in the service life of wavelength conversion efficiency and motor.Certainly, owing to there is no the second fin, much less is wanted in heat exchange between air-flow 941b and shell, therefore the present embodiment can be poorer than the embodiment shown in Figure 1A to the cooling-down effect of wavelength convert colour wheel, but the present embodiment has the low advantage of cost, this can accept or reject according to actual conditions in actual applications.
In order to improve the heat exchanger effectiveness of air-flow 941a and shell 921 inwall in the present embodiment, preferably, shell 921 inwall comprises the shape of fluctuating to increase its surface area, such as, can process some salient point, lines etc. on shell 921 inwall.These fluctuatings can might not guide air-flow 941a to form gas flow loop as the embodiment shown in Figure 1A, but still can improve the heat exchanger effectiveness of air-flow 941a and shell 921 inwall.
In actual applications, the heat that wavelength convert rotating disk sends, also can pass to the motor being attached thereto and connecing.And the safe working temperature of motor is generally no more than 85 degree, therefore also must take into account the service life of motor.Preferably, wavelength convert rotating disk is connected with using heat-barrier material between motor, can effectively reduce the temperature of motor like this.
In the above-described embodiments, wavelength convert rotating disk comprises wavelength conversion layer, the both sides of what this wavelength conversion layer was relative with the first fin be positioned at wavelength convert rotating disk.This arrangement being conducive to the first fin, not by the restriction of wavelength conversion layer, is therefore preferred scheme.And in actual applications, the relative position of wavelength conversion layer, the first fin and motor all can design according to actual needs and optimize, therefore citing of the present invention does not form the restriction to this.
The structure of an alternative embodiment of the invention as shown in Figure 7.With Figure 1A illustrated embodiment unlike, the outer wall of the Wavelength converter shell 721 of the present embodiment comprises a series of 3rd fin 724, effectively can reduce the temperature of shell like this, thus indirectly reduces the temperature of wavelength convert rotating disk.Or outer wall and the heat abstractor of shell are thermally coupled, be even connected with refrigerating plant (such as semiconductor cooler), thus play the effect reducing skin temperature.
Another difference of the present embodiment is, wavelength convert rotating disk comprises mark 709, shell 721 comprises the 3rd optical transmission window 729, the rotation of the mark 709 on wavelength convert rotating disk can be observed by the 3rd optical transmission window 729, thus the velocity of rotation of wavelength convert rotating disk can be detected by detector.This will be applied in Projection Display.
The structure of an alternative embodiment of the invention as shown in Figure 8.With the embodiment shown in Fig. 7 unlike, shell 821 comprises printed circuit board (PCB) 891, the first surface of this printed circuit board (PCB) 891 and second are respectively towards enclosure and enclosure.The first surface of printed circuit board (PCB) 891 comprises the first arrangements of electric connection, and this first arrangements of electric connection is electrically connected with the electronic device of enclosure.Such as the first arrangements of electric connection is powered for motor 805 by circuit 892.Second face of this printed circuit board (PCB) 891 comprises the second arrangements of electric connection, first arrangements of electric connection is electrically connected by printed circuit board (PCB) 891 with the second arrangements of electric connection, and such external power source can be just electronics or the driving of enclosure by the second arrangements of electric connection.In figure, circuit 893 is illustrated and the connected circuit of the second arrangements of electric connection.By printed circuit board (PCB) 891, while solving the electronics for enclosure, also maintain the closure integrity of shell.
The gas flow loop that the setting of the printed circuit board (PCB) in obvious the present embodiment and effect and preceding embodiment are mentioned and heat exchange are independent actions, that is, as long as employ shell to carry out closed wavelength convert rotating disk, the mode of printed circuit board (PCB) just can be used to ensure the closure of shell for motor power supplying simultaneously, with whether use the first fin, the second fin forms air-flow return road it doesn't matter.
In the above-described embodiments, the shell of Wavelength converter is all an entirety.In actual applications, shell may be made up of multiple parts.A kind of common situation is, wavelength convert rotating disk is installed on an optical texture, re-uses a housing and is covered by wavelength convert rotating disk.Now housing and optical texture are combined and play closed effect to wavelength convert rotating disk, and therefore both together constitute shell; Obvious this situation also belongs within protection scope of the present invention.
The present invention also proposes a kind of light-emitting device, comprises excitation source and above-mentioned Wavelength converter, and the exciting light that excitation source sends is incident in wavelength convert rotating disk through the first optical transmission window of the shell of Wavelength converter and makes it be excited to produce Stimulated Light.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a Wavelength converter, is characterized in that:
Comprise wavelength convert rotating disk and motor, motor is for driving wavelength convert dial rotation; Wavelength convert rotating disk comprises a series of first fins along the arrangement of wavelength convert disk peripheral direction, wherein the trend of at least part of first fin is the radial direction along wavelength convert rotating disk, for producing the air-flow radially outwards flowed out when wavelength convert dial rotation;
Also comprise shell, for being closed therein by wavelength convert rotating disk; Described shell comprises the first optical transmission window for receiving exciting light, and this first optical transmission window transmission can play again the effect of closed wavelength convert rotating disk to exciting light simultaneously.
2. Wavelength converter according to claim 1, is characterized in that, the inwall of described shell comprises the shape of fluctuating to increase its surface area.
3. Wavelength converter according to claim 1, it is characterized in that, the inwall of described shell comprises a series of second fin, the second adjacent at least partly fin forms air channel, the first fin one end near the center of circle is got back to, to form gas flow loop at least in part for guiding the air-flow radially outward flowed out from wavelength convert rotating disk in this air channel.
4. Wavelength converter according to claim 3, is characterized in that, described second fin comprises the first boot segment, this first boot segment near the first fin one end away from the center of circle, the air-flow produced during for receiving wavelength convert dial rotation; First boot segment of the second adjacent fin forms the first air channel, and this first air channel guides the air-flow flowed into turn to towards one end near the center of circle of the first fin.
5. the Wavelength converter according to claim 3 or 4, is characterized in that, described second fin comprises the second boot segment, one end of the second boot segment near the first fin one end close to the center of circle, for effluent stream to the first fin to form gas flow loop; Second boot segment of the second adjacent fin forms the second air channel, and the air-flow produced during wavelength convert dial rotation guides along the radial direction of wavelength convert rotating disk to one end close to the center of circle of the first fin by this second air channel.
6. Wavelength converter according to claim 5, is characterized in that, described second air channel comprises the demarcation strip between second boot segment and the first fin of the second fin.
7. Wavelength converter according to claim 3, is characterized in that, the air channel that the second adjacent fin is formed guides the air-flow radially outward flowed out from wavelength convert rotating disk circumferentially to flow in the periphery of wavelength convert rotating disk.
8. Wavelength converter according to claim 1, is characterized in that, described wavelength convert rotating disk is connected with using heat-barrier material between motor.
9. Wavelength converter according to claim 1, is characterized in that, described shell comprises printed circuit board (PCB), and the first surface of this printed circuit board (PCB) and second are respectively towards enclosure and housing exterior; The first surface of this printed circuit board (PCB) comprises the first arrangements of electric connection, and this first arrangements of electric connection is electrically connected with the electronic device of enclosure; Second face of this printed circuit board (PCB) comprises the second arrangements of electric connection, and the first arrangements of electric connection is electrically connected by printed circuit board (PCB) with the second arrangements of electric connection.
10. a light-emitting device, it is characterized in that, comprise excitation source and Wavelength converter according to any one of claim 1 to 9, the exciting light that described excitation source sends is incident in wavelength convert rotating disk through the first optical transmission window of the shell of Wavelength converter and makes it be excited to produce Stimulated Light.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071022.1A CN104676492B (en) | 2015-01-31 | 2015-02-10 | Wavelength converter and light-emitting device |
| CN201610496706.0A CN106054510A (en) | 2015-01-31 | 2015-02-10 | Wavelength conversion device and light-emitting device |
| PCT/CN2016/073721 WO2016127935A1 (en) | 2015-01-31 | 2016-02-06 | Wavelength conversion apparatus and light emitting apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055572 | 2015-01-31 | ||
| CN2015100555724 | 2015-01-31 | ||
| CN201510071022.1A CN104676492B (en) | 2015-01-31 | 2015-02-10 | Wavelength converter and light-emitting device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610496706.0A Division CN106054510A (en) | 2015-01-31 | 2015-02-10 | Wavelength conversion device and light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676492A true CN104676492A (en) | 2015-06-03 |
| CN104676492B CN104676492B (en) | 2016-08-17 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510071022.1A Active CN104676492B (en) | 2015-01-31 | 2015-02-10 | Wavelength converter and light-emitting device |
| CN201610496706.0A Pending CN106054510A (en) | 2015-01-31 | 2015-02-10 | Wavelength conversion device and light-emitting device |
| CN201520099396.XU Withdrawn - After Issue CN204534444U (en) | 2015-01-31 | 2015-02-10 | Wavelength converter and light-emitting device |
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| CN201610496706.0A Pending CN106054510A (en) | 2015-01-31 | 2015-02-10 | Wavelength conversion device and light-emitting device |
| CN201520099396.XU Withdrawn - After Issue CN204534444U (en) | 2015-01-31 | 2015-02-10 | Wavelength converter and light-emitting device |
Country Status (2)
| Country | Link |
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| CN (3) | CN104676492B (en) |
| WO (1) | WO2016127935A1 (en) |
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| WO2017092669A1 (en) * | 2015-12-02 | 2017-06-08 | 深圳市光峰光电技术有限公司 | Colour wheel device |
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| JP2020003532A (en) * | 2018-06-25 | 2020-01-09 | 株式会社リコー | Light source module, optical device, and method for manufacturing light source module |
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| US11506964B2 (en) | 2020-08-24 | 2022-11-22 | Coretronic Corporation | Wavelength conversion element and projector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016127935A1 (en) | 2016-08-18 |
| CN204534444U (en) | 2015-08-05 |
| CN104676492B (en) | 2016-08-17 |
| CN106054510A (en) | 2016-10-26 |
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