CN107678235B - Fluorescent color wheel - Google Patents
Fluorescent color wheel Download PDFInfo
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- CN107678235B CN107678235B CN201611001165.6A CN201611001165A CN107678235B CN 107678235 B CN107678235 B CN 107678235B CN 201611001165 A CN201611001165 A CN 201611001165A CN 107678235 B CN107678235 B CN 107678235B
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- turbine guide
- substrate
- color wheel
- turbine
- region
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
Abstract
The invention discloses a fluorescent color wheel, which comprises a substrate, a fluorescent agent and a plurality of eddy current generators. The substrate has a first region and a second region, wherein the second region has a plurality of openings. The fluorescent agent is arranged in the first area and used for carrying out wavelength conversion on the wave band light. Each vortex generator comprises at least one turbine guide sheet, each turbine guide sheet is arranged in the second area, and the projection of each turbine guide sheet on the second area corresponds to one of the openings, so that a vortex is generated when the substrate rotates. Therefore, the heat exchange efficiency can be increased, the temperature of light spots can be reduced, and the technical effect of increasing the light emitting efficiency of the fluorescent agent can be further achieved.
Description
Technical Field
The present invention relates to a fluorescent device, and more particularly, to a fluorescent color wheel suitable for a light source system of a projector.
Background
In recent years, various projection devices, such as projectors, have been widely used, and most of them use a Phosphor Wheel (PW) as a light source element to cooperate with a laser light source to excite and convert one or more color lights.
Generally, a conventional fluorescent color wheel is carried on a motor for rotation. Please refer to fig. 1, which shows a schematic structural diagram of a conventional fluorescent color wheel. The conventional color wheel 1 is formed by coating phosphor on an outer ring of a substrate 10 to form a phosphor zone 11. Because the laser light sources are fixedly projected at the same position, the whole fluorescent powder ring belt 11 can be excited by the laser light sources to convert into colored light in the rotating process, and meanwhile, heat dissipation can be performed.
However, since the beam of the laser source is projected directly onto the phosphor annulus 11, the heat source range 12 is shown in dashed lines in FIG. 1. Because the laser has the characteristic of high energy density, the excitation track of the light spot 13 is often the position of a high-temperature heat source, so that the temperature uniformity of the fluorescent color wheel 1 is poor, the working temperature of the fluorescent powder is relatively high, the light emitting efficiency is reduced, and even a Binder (Binder) for binding the fluorescent powder in a fluorescent powder ring belt is burnt.
Even though the existing products use a heat dissipation fan or a heat sink to be attached to the back of the fluorescent color wheel, this method inevitably increases the weight and volume of the fluorescent color wheel, and if the volume is insufficient, the heat dissipation effect is limited; on the other hand, in the prior art, the substrate is formed into a continuous concave-convex surface structure, but the air flow is generated only on one side of the substrate in this way, and the air flow cannot be communicated with the front side and the back side, so that the heat dissipation effect is not good.
Therefore, how to develop a fluorescent color wheel that can improve the above-mentioned deficiencies in the prior art, effectively improve the heat dissipation effect and increase the light emitting efficiency is a problem yet to be solved at present.
Disclosure of Invention
It is a primary object of the present invention to provide a fluorescent color wheel that solves at least one of the aforementioned drawbacks of the prior art.
Another objective of the present invention is to provide a fluorescent color wheel, wherein the turbine guiding pieces of the plurality of vortex generators and the corresponding plurality of openings generate vortices when the substrate rotates, so as to increase heat exchange efficiency, reduce light spot temperature, and further achieve the technical effect of increasing light emitting efficiency of the fluorescent agent.
To achieve the above objective, a preferred embodiment of the present invention provides a fluorescent color wheel, adapted to perform wavelength conversion on light in a wavelength band, including: a substrate having a first region and a second region, wherein the second region has a plurality of openings; at least one fluorescent agent arranged in the first area and used for carrying out wavelength conversion on the wave band light; and a plurality of vortex generators, wherein each vortex generator comprises at least one turbine guide plate, each turbine guide plate is arranged in the second area, and the projection of each turbine guide plate on the second area corresponds to one of the plurality of openings, so that vortex is generated when the substrate rotates, and the heat exchange efficiency is increased through the plurality of openings.
In order to achieve the above object, another preferred embodiment of the present invention provides a fluorescent color wheel, adapted to perform wavelength conversion on light in a wavelength band, including: a substrate having a first region and a second region, wherein the second region has a plurality of openings; at least one fluorescent agent arranged in the first area and used for carrying out wavelength conversion on the wave band light; and a plurality of vortex generators, wherein each vortex generator comprises two turbine guide sheets which are symmetrical to each other, each turbine guide sheet is arranged in the second area, and the projection of each turbine guide sheet on the second area corresponds to one of the plurality of openings, so that a vortex is generated when the substrate rotates, and the heat exchange efficiency is increased through the plurality of openings.
The invention has the beneficial effect that the invention provides the fluorescent color wheel so as to solve at least one defect in the prior art. Specifically, through the turbine guide pieces of a plurality of vortex generators and a plurality of openings corresponding to the turbine guide pieces, when the substrate rotates, a vortex is generated, so that the heat exchange efficiency can be increased, the temperature of light spots can be reduced, and the technical effect of increasing the light emitting efficiency of the fluorescent agent can be further achieved.
Drawings
Fig. 1 is a schematic diagram showing a structure of a conventional fluorescent color wheel.
Fig. 2 is a schematic diagram illustrating an angle between a turbine guiding plate of a vortex generator of a fluorescent color wheel and a substrate and an aperture length of an opening corresponding to the angle.
Fig. 3 is a schematic diagram showing the angle between a pair of turbine guide plates of the vortex generator of the fluorescent color wheel and the substrate and the aperture length of the corresponding opening according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a substrate according to an embodiment of the invention.
Fig. 5A is a schematic view showing the turbine guide vane of the present invention as a triangular turbine guide vane.
Fig. 5B is a schematic view showing the turbine guide vane of the present invention as a quadrangular turbine guide vane.
Fig. 5C is a schematic view showing that the turbine guide vane of the present invention is a hexagonal turbine guide vane.
FIG. 5D is a schematic view showing the angle between the guide plate and the tangential direction of the base plate according to the present invention.
Fig. 6 is a schematic diagram showing the angle between a pair of turbine guide plates of the vortex generator of the fluorescent color wheel and the substrate and the aperture length of the corresponding opening according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a substrate according to another embodiment of the invention.
Fig. 8A is a schematic view showing that two turbine vanes of the present invention are triangular turbine vanes.
FIG. 8B is a schematic view showing that two turbine guide vanes of the present invention are quadrangular turbine guide vanes.
FIG. 8C is a schematic view showing two turbine vanes of the present invention as hexagonal turbine vanes.
FIG. 8D is a schematic view showing the included angle between two turbine guide plates and the included angle between a turbine guide plate and the tangential direction of the movement of the base plate according to the present invention.
Wherein the reference numerals are as follows:
1: traditional fluorescent color wheel
10: substrate
11: fluorescent powder ring belt
12: range of heat source
13: light spot
2. 3: fluorescent color wheel
20. 30: substrate
201. 301: first region
202. 302: second region
2020: opening of the container
21. 31: fluorescent agent
22. 32: vortex generator
221. 321: turbine guide vane
Lf, Lf1, Lf2, Lh1, Lh 2: length of
r: radius of
θ: first included angle
α: second included angle
Beta: third included angle
Detailed Description
Some exemplary embodiments that embody features and advantages of the invention will be described in detail in the description that follows. It is to be understood that the invention is capable of various modifications in various embodiments without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.
Referring to fig. 2, fig. 3 and fig. 4, fig. 2 is a schematic diagram illustrating an included angle between a turbine guiding plate of a vortex generator of a fluorescent color wheel and a substrate and an aperture length of an opening corresponding to the included angle, fig. 3 is a schematic diagram illustrating an included angle between a pair of turbine guiding plates of a vortex generator of a fluorescent color wheel and a substrate and an aperture length of an opening corresponding to the included angle, and fig. 4 is a schematic diagram illustrating a structure of a substrate according to an embodiment of the invention. As shown in fig. 2, fig. 3 and fig. 4, the fluorescent color wheel 2 according to the preferred embodiment of the present invention is suitable for wavelength conversion of a wavelength band of light, such as converting a blue laser into a yellow light, but not limited thereto, and the fluorescent color wheel 2 includes a substrate 20, at least one phosphor 21 and a plurality of eddy current generators 22. The substrate 20 may be, for example but not limited to, a metal substrate or a ceramic substrate, and has a first region 201 and a second region 202, wherein the second region 202 has a plurality of openings 2020. The phosphor 21 is disposed in the first region 201, and is used for performing wavelength conversion on the light in the wavelength band, so that the first region 201 is configured as a wavelength conversion region; in contrast, the second region 202 is configured as a non-wavelength-converting region. Each vortex generator 22 includes at least one turbine guiding plate 221 (as shown in fig. 2), and preferably, each vortex generator 22 includes two symmetrical turbine guiding plates 221 (as shown in fig. 3), a projection of each turbine guiding plate 221 on the second region 202 corresponds to one of the plurality of openings 2020, that is, each turbine guiding plate 221 is disposed opposite to a broken opening on the substrate 20, but not limited thereto. Therefore, when the substrate 20 rotates, the turbine guide vane 221 generates vortex flow, and air on the front and back sides of the substrate 20 is convected through the plurality of openings 2020, thereby increasing heat exchange efficiency between the substrate 20 and the environment. Meanwhile, the temperature of the light spot can be reduced, and the technical effect of increasing the light emitting efficiency of the fluorescent agent 21 is further achieved.
Of course, the second region 202 of the substrate 20 of the present invention may not have the plurality of openings 2020, but may be replaced by a plurality of grooves. In other words, the turbine guiding plate 221 can be formed by cutting and bending a portion of the surface of the substrate 20, and can also achieve similar turbulence effect.
Preferably, the substrate 20 is a circular substrate, and the vortex generators 22 are disposed along the circumference of at least one concentric circle (concentric with the substrate 20) having a radius smaller than the radius r of the substrate 20 (i.e., the circular substrate). In other words, the vortex generators 22 may be all disposed along the circumference of the same concentric circle having a radius smaller than the radius r, or may be disposed along the circumference of different concentric circles. In addition, the turbine guide vanes 221 of the vortex finder 22 shown in FIG. 4 are disposed at least partially along the periphery of the opening 2020 to form a wall-like structure to at least partially surround the opening 2020 to promote a convective air flow effect around the opening 2020.
In some embodiments, each of the turbine guide plates 221 of the present invention extends from the base plate 20 and has a first included angle θ with the base plate 20, and the angle of the first included angle θ is greater than or equal to 10 degrees and less than or equal to 90 degrees. Further, the length Lf of each turbine guide piece 221 extending from the base plate 20 along the circumference of the concentric circle, and the bore length Lh of the opening 2020 corresponding to the turbine guide piece 221 have a ratio of 0.1 or more and 10 or less.
In other embodiments, the substrate 20 may be a multi-layer substrate and further includes a first layer having a plurality of vortex generators 22 and turbine guide vanes 221 and a second layer (not shown) disposed on the first layer and having a plurality of openings 2020. When the first layer plate and the second layer plate are overlapped, each turbine guide sheet is arranged through one of the openings, so that the appearance and the function similar to those of the embodiment are achieved.
Please refer to fig. 5A, fig. 5B, fig. 5C, and fig. 5D in conjunction with fig. 4. Fig. 5A is a schematic view showing that the turbine guide piece of the present invention is a trilateral turbine guide piece, fig. 5B is a schematic view showing that the turbine guide piece of the present invention is a quadrilateral turbine guide piece, fig. 5C is a schematic view showing that the turbine guide piece of the present invention is a hexagonal turbine guide piece, and fig. 5D is a schematic view showing an included angle between the turbine guide piece of the present invention and a movement tangential direction of the base plate. As shown in fig. 4 to fig. 5D, the turbine guiding plate 221 of the vortex generator 22 of the fluorescent color wheel 2 of the present invention is preferably formed by bending the substrate 20, that is, the substrate 20 is directly cut and bent, which not only has an integrally formed structure, but also can further reduce the manufacturing cost. In addition, in order to improve the turbulence effect or achieve a specific heat dissipation efficiency, the length Lf of the turbine guiding blade 221 extending from the substrate 20 along the circumference of the concentric circle may also be increased or decreased according to design or requirement, for example, by stretching, or stretching by attaching a small substrate, or cutting, that is, the projection of the turbine guiding blade 221 on the second area 202 may be different from the shape of the opening 2020, but not limited thereto.
In some embodiments, each of the turbine guide pieces 221 is a polygonal turbine guide piece, such as a triangular turbine guide piece (as shown in fig. 5A), a quadrangular turbine guide piece (as shown in fig. 5B), or a hexagonal turbine guide piece (as shown in fig. 5C), and at least one side of the polygonal turbine guide piece is connected to the base plate 20. In addition, a second included angle α is formed between the axial direction of each turbine guide vane 221 and the tangential moving direction MT of the substrate 20, and the angle of the second included angle α is preferably greater than or equal to 0 degree and less than or equal to 90 degrees, but not limited thereto.
Referring to fig. 6 and 7, fig. 6 is a schematic diagram illustrating an included angle between a pair of turbine guide plates of a vortex generator of a fluorescent color wheel and a substrate and an aperture length of a corresponding opening according to another embodiment of the present invention, and fig. 7 is a schematic diagram illustrating a structure of a substrate according to another embodiment of the present invention. As shown in fig. 6 and 7, in another preferred embodiment of the fluorescent color wheel of the present invention, the fluorescent color wheel 3 includes a substrate 30, at least one phosphor 31, and a plurality of eddy current generators 32, wherein the substrate 30 has a first region 301 and a second region 302. Since the substrate 30, the first region 301 and the second region 302 thereof, and the phosphor 31 are similar to those of the previous embodiments, they will not be described in detail. However, in the present embodiment, each of the vortex generators 32 includes two symmetrical or asymmetrical turbine guide pieces 321, and the two turbine guide pieces 321 are arranged along the circumference of a concentric circle having a radius smaller than the radius r of the base plate 30. The projection of each turbine guide piece 321 on the second region 302 corresponds to one of the plurality of openings of the second region 302, so as to generate vortex when the substrate 30 rotates and increase the heat exchange efficiency.
Please refer to fig. 8A, 8B, 8C and 8D in conjunction with fig. 6 and 7. Wherein, fig. 8A is a schematic view showing that two turbine guide pieces of the present invention are triangular turbine guide pieces, fig. 8B is a schematic view showing that two turbine guide pieces of the present invention are quadrangular turbine guide pieces, fig. 8C is a schematic view showing that two turbine guide pieces of the present invention are hexagonal turbine guide pieces, and fig. 8D is a schematic view showing an included angle of two turbine guide pieces of the present invention and an included angle of a turbine guide piece and a movement tangential direction of a base plate. As shown in fig. 6 to 8D, each of the turbine guiding pieces 321 of the vortex generator 32 of the fluorescent color wheel 3 of the present invention may be a polygonal turbine guiding piece, such as a triangular turbine guiding piece (as shown in fig. 8A), a quadrangular turbine guiding piece (as shown in fig. 8B) or a hexagonal turbine guiding piece (as shown in fig. 8C), and at least one side of the polygonal turbine guiding piece is connected to the substrate 30. In addition, a second included angle α is formed between one of the two turbine guide pieces 321 and the movement tangential direction MT of the substrate 30, and a third included angle β is formed between the two turbine guide pieces 321, wherein an angle of the second included angle α is greater than or equal to 0 degree and less than or equal to 90 degrees, and an angle of the third included angle β is greater than or equal to 0 degree and less than or equal to 180 degrees, which are not limited thereto.
For example, when the third included angle β is smaller than 180 °, i.e. the two turbine guide plates are not parallel and aligned, when the base plate 30 rotates, the wind flow enters from one side of the two turbine guide plates that are closer to each other and leaves from the other side of the two turbine guide plates that are farther from each other. In short, the wind flow enters the large hole from the small hole and exits from the large hole, so that the flow resistance can be reduced, the turbulence effect can be further increased, and the heat dissipation efficiency can be improved.
Please refer to fig. 6. According to the invention, the two turbine guiding blades 321 are preferably symmetrical to each other with respect to the circumference of the concentric circle, but not limited thereto. In this case, the lengths Lf1 and Lf2 of the two turbine guide pieces 321 extending from the base plate 30 along the circumferences of the concentric circles are identical, and the first angle θ and the fourth angle θ between the two turbine guide pieces 321 and the base plate 30 are identical
Are identical.
On the other hand, the two turbine guiding pieces 321 may be configured as two turbine guiding pieces different or partially different from each other, that is, at least one of the lengths of the two turbine guiding pieces 321 extending from the base plate 30 along the circumference of the concentric circle and the included angles between the two turbine guiding pieces 321 and the base plate 30 is different. For example, in one embodiment, the lengths Lf1 and Lf2 of the two turbine guide pieces 321 extending from the base plate 30 along the circumferences of the concentric circles are different from each other, and the first angle θ and the fourth angle θ between the two turbine guide pieces 321 and the base plate 30 are different from each other
Are identical to each other; in another embodiment, the lengths Lf1 and Lf2 of the two turbine guide pieces 321 extending from the base plate 30 along the circumference of the concentric circle are the same, and the first angle θ and the fourth angle θ between the two turbine guide pieces 321 and the base plate 30 are different
Are different from each other; in another embodiment, the lengths Lf1 and Lf2 of the two turbine guide pieces 321 extending from the base plate 30 along the circumference of the concentric circle are different from each other, and the first angle θ and the fourth angle θ between the two turbine guide pieces 321 and the base plate 30 are different from each other
Also different from each other. The matching and configuration of the two turbine guide plates 321 and the corresponding aperture lengths Lh1 and Lh2 of the openings can be selected and varied according to actual requirements, and can be optimized by, for example, a heat flow simulation method.
Please refer to the following table one and the following table two, which show the working temperatures of the conventional fluorescent color wheel and the fluorescent color wheel of the present invention at different laser powers, and show the heat dissipation efficiency percentages of the standardized conventional fluorescent color wheel and the fluorescent color wheel of the present invention at different laser powers. It should be noted that, in the data shown in table one and table two, the number of the turbine guide pieces of each vortex generator of the fluorescence device of the present invention is one, and the turbine guide pieces are quadrilateral vortex guide pieces.
Watch two
| Laser power (Watt)/thermal efficiency (%) | Traditional fluorescent color wheel | The invention relates to a fluorescent color wheel |
| 25 | 100.0 | 111.4 |
| 76 | 100.0 | 112.9 |
| 102 | 100.0 | 111.4 |
| 152 | 100.0 | 110.5 |
| 170 | 100.0 | 109.7 |
| 209 | 100.0 | 111.8 |
As can be seen from the first and second tables, the fluorescent color wheel of the present invention can effectively improve the heat dissipation efficiency and reduce the working temperature of the fluorescent color wheel during wavelength conversion without increasing the volume and weight of the elements.
Please refer to fig. 6 and fig. 7. According to the idea of the present invention, the fluorescent color wheel 3 of the present invention can also be regarded as comprising a substrate 30, at least one phosphor 31 and a plurality of turbine guiding pieces 321. The substrate 30 has a discontinuous surface and a continuous outer annular surface, the discontinuous surface is surrounded by the continuous outer annular surface, and the phosphor 31 is disposed on the continuous outer annular surface. The plurality of turbine guide blades 321 are disposed on the discontinuous surface to generate a vortex when the substrate 30 rotates. In this embodiment, the plurality of turbine guide pieces 321 are formed by cutting and bending the surface of the substrate 30, and an opening is formed on the substrate 30 corresponding to the cut portion of each turbine guide piece 321, and each opening penetrates through the substrate 30. As for the ratio of the length of the turbine guiding plate 321 to the aperture length of the corresponding opening, it is greater than or equal to 0.1 and less than or equal to 10 as described in the previous embodiment, and the included angle between the turbine guiding plate 321 and the substrate 30 is greater than or equal to 10 degrees and less than or equal to 90 degrees as also mentioned in the previous embodiment.
In summary, the present invention provides a fluorescent color wheel to solve at least one of the disadvantages of the prior art. Specifically, through the turbine guide pieces of a plurality of vortex generators and a plurality of openings corresponding to the turbine guide pieces, when the substrate rotates, a vortex is generated, so that the heat exchange efficiency can be increased, the temperature of light spots can be reduced, and the technical effect of increasing the light emitting efficiency of the fluorescent agent can be further achieved.
Although the present invention has been described in detail with reference to the above embodiments, it can be freely conceived and modified by those skilled in the art, without departing from the scope of the technical solution as claimed in the appended claims.
Claims (12)
1. A fluorescent color wheel adapted to wavelength convert a band of light, comprising:
the substrate is a circular substrate and is provided with a first area and a second area, wherein the second area is provided with a plurality of openings;
at least one fluorescent agent arranged in the first area and used for carrying out wavelength conversion on the wave band light; and
the vortex generators are arranged along the circumference of at least one concentric circle with the radius smaller than that of the circular base plate, each vortex generator comprises two turbine guide sheets, the two turbine guide sheets are symmetrical relative to the circumference of the concentric circle, each turbine guide sheet is arranged in the second area, each turbine guide sheet is arranged on the base plate in the axial direction, the turbine guide sheets are formed by bending the base plate, an included angle is formed between the motion tangential direction of each turbine guide sheet and the axial direction, the included angle is larger than or equal to 0 degree and smaller than 90 degrees, and the projection of each turbine guide sheet on the second area corresponds to one of the openings, so that vortex is generated when the base plate rotates, and the heat exchange efficiency is improved through the openings.
2. The color wheel of claim 1 wherein each of the turbine guide segments extends from the substrate and forms a first angle with the substrate, and the angle of the first angle is greater than or equal to 10 degrees and less than or equal to 90 degrees.
3. The fluorescent color wheel of claim 2 wherein the ratio of the length of each of the turbine guide vanes extending from the substrate along the circumference of the concentric circle to the aperture length of the corresponding opening is greater than or equal to 0.1 and less than or equal to 10.
4. The color wheel of claim 1 wherein a second angle is formed between one of the two turbine guide plates and a tangential direction of the substrate, and a third angle is formed between the two turbine guide plates, wherein the second angle is greater than or equal to 0 degree and less than or equal to 90 degrees, and the third angle is greater than or equal to 0 degree and less than or equal to 180 degrees.
5. The color wheel of claim 4 wherein when the third angle is less than 180 degrees, the wind enters from one side of the two turbine guiding plates that are closer to each other and exits from the other side of the two turbine guiding plates that are farther from each other when the substrate rotates.
6. The fluorescent color wheel of claim 1 wherein the lengths of the two turbine guide segments extending from the substrate along the circumferences of the concentric circles are the same, and the angles between the two turbine guide segments and the substrate are different.
7. The fluorescent color wheel of claim 1 wherein the lengths of the two turbine guide segments extending from the substrate along the circumferences of the concentric circles are different and the angles between the two turbine guide segments and the substrate are the same.
8. The fluorescent color wheel of claim 1 wherein the lengths of the two turbine guide segments extending from the substrate along the circumferences of the concentric circles are different and the angles between the two turbine guide segments and the substrate are different.
9. The fluorescent color wheel of claim 1 wherein the first region is a wavelength converting region and the second region is a non-wavelength converting region.
10. The fluorescent color wheel of claim 1 wherein each of the plurality of turbine guide segments is a polygonal turbine guide segment, and at least one side of the polygonal turbine guide segment is connected to the substrate.
11. The fluorescent color wheel of claim 1 wherein the projection of the turbine guide blade onto the second region is different from the shape of the corresponding opening.
12. A fluorescent color wheel adapted to wavelength convert a band of light, comprising:
a substrate having a first region and a second region, wherein the second region has a plurality of openings;
at least one fluorescent agent arranged in the first area and used for carrying out wavelength conversion on the wave band light; and
a plurality of vortex generators, wherein each vortex generator comprises two turbine guide pieces which are symmetrical to each other, each turbine guide piece is arranged in the second area, each turbine guide piece is arranged on the substrate in an axial direction, an included angle is formed between the movement tangential direction of each turbine guide piece and the axial direction, the included angle is larger than or equal to 0 degree and smaller than 90 degrees, and the projection of each turbine guide piece on the second area corresponds to one of the plurality of openings, so that a vortex is generated when the substrate rotates, and the heat exchange efficiency is increased through the plurality of openings.
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| US201662369296P | 2016-08-01 | 2016-08-01 | |
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| CN109031869B (en) | 2018-08-07 | 2021-04-20 | 苏州佳世达光电有限公司 | Projection device and wavelength conversion module thereof |
| TWI668468B (en) * | 2018-08-24 | 2019-08-11 | 佳世達科技股份有限公司 | Projector and wavelength conversion module thereof |
| CN114026494B (en) * | 2019-07-26 | 2023-08-11 | 松下知识产权经营株式会社 | Phosphor wheel |
| CN114077136B (en) | 2020-08-20 | 2024-03-08 | 台达电子工业股份有限公司 | Wavelength conversion element and light source module |
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| CN2697716Y (en) * | 2004-04-27 | 2005-05-04 | 力致科技股份有限公司 | Blade distributing structure for centrifugal type radiation fan of office facilities |
| CN101641005B (en) * | 2008-07-31 | 2011-08-31 | 富准精密工业(深圳)有限公司 | Radiating device |
| CN101740295A (en) * | 2008-11-24 | 2010-06-16 | 乐金电子(天津)电器有限公司 | Novel magnetron heat radiating fin structure |
| TWI460525B (en) * | 2011-12-29 | 2014-11-11 | Hon Hai Prec Ind Co Ltd | Color wheel apparatus of porjector |
| TWI480665B (en) * | 2013-07-03 | 2015-04-11 | Delta Electronics Inc | Heat dissipating module of phosphor wheel of laser projection system |
| CN104834169B (en) * | 2014-02-07 | 2017-04-12 | 中强光电股份有限公司 | Fluorescent wheel and projector with fluorescent wheel |
| CN203799330U (en) * | 2014-04-21 | 2014-08-27 | 昆山新力精密五金有限公司 | Novel heat dissipation module with improved structure |
| CN204178109U (en) * | 2014-09-03 | 2015-02-25 | 深圳市绎立锐光科技开发有限公司 | A kind of colour wheel heat abstractor, color wheel device and light-emitting device |
| TWI530751B (en) * | 2014-09-11 | 2016-04-21 | 中強光電股份有限公司 | Color wheel and projection device |
| JP6617274B2 (en) * | 2014-09-17 | 2019-12-11 | パナソニックＩｐマネジメント株式会社 | Phosphor wheel device, phosphor wheel device housing, and projection-type image display device |
| CN104949315B (en) * | 2015-06-24 | 2017-12-22 | 珠海格力电器股份有限公司 | Radiator, controller and air conditioner |
| CN105511213B (en) * | 2015-12-08 | 2017-12-05 | 海信集团有限公司 | A kind of Wavelength converter and light source |
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