CN102073115A - Fluorescent powder color wheel and projector applying same - Google Patents
Fluorescent powder color wheel and projector applying same Download PDFInfo
- Publication number
- CN102073115A CN102073115A CN2010105674229A CN201010567422A CN102073115A CN 102073115 A CN102073115 A CN 102073115A CN 2010105674229 A CN2010105674229 A CN 2010105674229A CN 201010567422 A CN201010567422 A CN 201010567422A CN 102073115 A CN102073115 A CN 102073115A
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- China
- Prior art keywords
- fluorescent powder
- colour wheel
- substrate
- fluorescence portion
- powder colour
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
- H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Signal Processing (AREA)
- Astronomy & Astrophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a fluorescent powder color wheel and a projector applying the same. The fluorescent powder color wheel comprises a substrate, fluorescent parts and condensation parts, wherein the fluorescent parts are annularly arranged on the substrate; and the condensation parts are adjacent to the fluorescent parts and are used for converging the light generated after excitation of the fluorescent parts. The light source utilization efficiency of the whole projector system can be improved by the fluorescent powder color wheel provided by the invention.
Description
Technical field
The present invention is about a kind of fluorescent powder colour wheel, particularly about a kind of fluorescent powder colour wheel of receiving optical efficiency and projector that uses this fluorescent powder colour wheel of improving.
Background technology
Now more and more projectors utilize LED (light Emitting Diode, light emitting diode) as light source, and it is that the light that utilizes excitation light source excites fluorescent powder to send different wave lengths such as red, green or indigo plant is used as the light source use that a kind of mode is wherein arranged.The colour wheel that this projector uses generally is to scribble the fluorescent powder that can be inspired red, green or blue light by LED on annulus, and when colour wheel was worked, LED light irradiation fluorescent powder colour wheel inspired red, green, blue, and projector carries out work with regard to utilizing the light that inspires.
See also Figure 1A and Figure 1B, Figure 1A and Figure 1B are the structural representation of traditional reflective fluorescent powder colour wheel 1, and wherein Figure 1B is corresponding to the xsect of Figure 1A in the C-C direction.Reflective fluorescent powder colour wheel 1 comprises high reflectance substrate 10 and fluorescence portion 11, and fluorescence portion 11 annulars are arranged on the substrate 10.Substrate 10 can drive by motor 12 and rotate.Reflective phosphor powder colour wheel 1 generally is that phosphor powder is coated on the high-reflectivity metal plate, and excitation source (figure does not show) excites fluorescent portion 11 from the place ahead along directions X, and the light of generation sends from the place ahead via substrate 10 reflections.See also Fig. 2 A and Fig. 2 B, Fig. 2 A and Fig. 2 B are the structural representation of traditional transmission-type fluorescent powder colour wheel 2, and wherein Fig. 2 B is corresponding to the xsect of Fig. 2 A in the D-D direction.Transmission-type fluorescent powder colour wheel 2 comprises light-transmitting substrate 20 and fluorescence portion 21, and fluorescence portion 21 annulars are arranged on the substrate 20.Transmission-type phosphor powder colour wheel 2 generally is that phosphor powder is coated on the transparent glass, and excitation source (figure does not show) excites fluorescent portion 21 from the rear along the Y direction, and the light of generation directly sends from the place ahead.
But in above-mentioned prior art, the scattering of the light meeting wide-angle that after fluorescence portion excites, produces, thus it is not good to cause receiving optical efficiency in the whole projection optical system.
Summary of the invention
At above-mentioned technical matters, the present invention reaches the change rising angle by the design that increases light collecting part, improves the purpose of receiving optical efficiency.
Fluorescent powder colour wheel provided by the invention comprises substrate, fluorescence portion and light collecting part.Fluorescence portion annular is arranged on the substrate.Light collecting part is adjacent to fluorescence portion, and this light collecting part is in order to assemble the light that produces after this fluorescence portion excites.
According to fluorescent powder colour wheel of the present invention, light collecting part is epoxy resin (EPOXY) layer that is coated on fluorescence portion.
According to fluorescent powder colour wheel of the present invention, substrate is a light-transmitting substrate.
According to fluorescent powder colour wheel of the present invention, substrate is the high reflectance substrate.Further, this substrate is a sheet metal.
According to fluorescent powder colour wheel of the present invention, light collecting part comprises the groove that is formed on the substrate, and fluorescence portion is arranged in this groove, and the described light that produces after this fluorescence portion excites reflects this groove through this substrate.Further, fluorescence portion complete filling is in groove, and the upper surface of this fluorescence portion flushes in the upper surface of substrate.Further, groove is sphere or paraboloidal deep-slotted chip breaker.
According to fluorescent powder colour wheel of the present invention, light collecting part is the epoxy resin layer that is coated on fluorescence portion, this light collecting part is also with so that excitation line focuses on this fluorescence portion, and the described light that produces after this fluorescence portion excites passes this light collecting part once more after the substrate reflection.
The present invention also provides a kind of projector, and this projector comprises above-mentioned fluorescent powder colour wheel.
By fluorescent powder colour wheel of the present invention, can improve the light source utilization ratio of whole projector system.
Description of drawings
Figure 1A and Figure 1B are the structural representation of traditional reflective fluorescent powder colour wheel.
Fig. 2 A and Fig. 2 B are the structural representation of traditional transmission-type fluorescent powder colour wheel.
Fig. 3 is the structural representation of the fluorescent powder colour wheel of one embodiment of the invention.
Fig. 4 A is the fundamental diagram of the transmission-type fluorescent powder colour wheel of one embodiment of the invention.
Fig. 4 B is the fundamental diagram of the reflective fluorescent powder colour wheel of one embodiment of the invention.
Fig. 5 is the structural representation of the fluorescent powder colour wheel of another embodiment of the present invention.
Fig. 6 is the structural representation of the fluorescent powder colour wheel of further embodiment of this invention.
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.
See also Fig. 3, Fig. 3 is the structural representation of the fluorescent powder colour wheel 3 of one embodiment of the invention.Fluorescent powder colour wheel 3 comprises substrate 30, fluorescence portion 31 and light collecting part 33.Fluorescence portion 31 annulars are arranged on the substrate 30, can be referring to Figure 1A or Fig. 2 A.Light collecting part 33 is adjacent to fluorescence portion 31, and light collecting part 33 is in order to assemble the light that produces after fluorescence portion 31 excites.In one embodiment, light collecting part 33 is for being coated on epoxy resin (EPOXY) layer of fluorescence portion 31.Preferably, the cross sectional shape of epoxy resin layer is that thick middle, both sides are thin, plays the effect of convex lens.
The method for making of above-mentioned light collecting part can be similar with the LED packaged type, earlier epoxy resin inserted in the annular groove tool, and the colour wheel with coated fluorescence portion covers again, treats that the two fixing back is taken out to get final product.In addition, also can utilize optical cement that this light collecting part is pasted in the fluorescence portion, the present invention is not as limit.Need to prove that fluorescence of the present invention portion can be monochromatic, also can be the combination of multiple color (as RGB), the fluorescence area of these different colours generally forms this fluorescence portion with ring shooting.
Please in conjunction with referring to Fig. 4 A, Fig. 4 A is the fundamental diagram of the transmission-type fluorescent powder colour wheel 4 of one embodiment of the invention.The substrate 40 that fluorescent powder colour wheel 4 comprises is light-transmitting substrate, for example glass or other transparency carrier.In this embodiment,, can change the rising angle of the light that after fluorescence portion 41 excites, produces, improve and receive optical efficiency by the shape of light collecting part 43.
Please in conjunction with referring to Fig. 4 B, Fig. 4 B is the fundamental diagram of the reflective fluorescent powder colour wheel 5 of one embodiment of the invention.The substrate 50 that fluorescent powder colour wheel 5 comprises is high reflectance substrate, for example sheet metal or other reflecting plate.In this embodiment,, can change the rising angle of the light that after fluorescence portion 51 excites, produces, improve and receive optical efficiency by the shape of light collecting part 53.In addition, in this embodiment, light collecting part 53 is also with so that excitation line more focuses on fluorescence portion 51, thereby promotes launching efficiency.Also be that excitation line focuses on fluorescence portion 51 by light collecting part 53 earlier, the described then light that produces after fluorescence portion 51 excites passes light collecting part 53 once more after substrate 50 reflections, reach the technique effect of twice converging ray in different directions.
See also Fig. 5, Fig. 5 is the structural representation of the fluorescent powder colour wheel 6 of another embodiment of the present invention.The light collecting part design of fluorescent powder colour wheel 6 is different from the foregoing description, and present embodiment mainly is to utilize the shape that changes the colour wheel substrate, reaches the purpose that improves fluorescent powder colour wheel efficient.Fluorescent powder colour wheel 6 comprises substrate 60, fluorescence portion 61 and light collecting part 63.Fluorescence portion 61 annulars are arranged on the substrate 60, can be referring to Figure 1A or Fig. 2 A.Light collecting part 63 is adjacent to fluorescence portion 61, and light collecting part 63 is in order to assemble the light that produces after fluorescence portion 61 excites.Substrate 60 is the high reflectance substrate, for example sheet metal or other reflecting plate.Light collecting part 63 comprises the groove 631 that is formed on the substrate 60, and fluorescence portion 61 is arranged in the groove 631, and the described light that produces after fluorescence portion 61 excites reflects groove 631 through substrate 60.In actual applications, groove 631 is sphere or paraboloidal deep-slotted chip breaker, but the present invention is not as limit.The fluorescent powder colour wheel of this embodiment can make things convenient for the coating of fluorescent powder, coating need not mask (mask) during fluorescent powder the location; And can save the fluorescent powder of wasting because of mask when being coated with, thereby save the expensive fluorescent powder cost of raw material.
Preferably, fluorescence portion 61 complete filling are in groove 631, and the upper surface of fluorescence portion 61 flushes in the upper surface of substrate 60.So, also can reduce interference chance, thereby reduce the design size of whole optical projection system, to satisfy the lightening needs of product with the receipts optical element in certain thickness fluorescence portion and the projector.
Further, see also Fig. 6, Fig. 6 is the structural representation of the fluorescent powder colour wheel 7 of further embodiment of this invention.Fluorescent powder colour wheel 7 mainly is with the difference of fluorescent powder colour wheel 6, light collecting part 63 can also comprise the epoxy resin layer 632 that is coated on fluorescence portion 61, epoxy resin layer 632 is also with so that excitation line focuses on fluorescence portion 61, and the described light that produces after fluorescence portion 61 excites passes epoxy resin layer 632 once more after the reflection of 631 inwalls of the groove on the substrate 60, reach with this and both to improve the receipts optical efficiency, promote the technique effect of launching efficiency again.
The present invention also provides a kind of projector, and this projector comprises above-mentioned fluorescent powder colour wheel.Above-mentioned fluorescent powder colour wheel can be applied in the projector of various different frameworks, and this belongs to technology as well known to those skilled in the art, so do not give unnecessary details at this.
Compared with prior art, fluorescent powder colour wheel of the present invention can improve the light source utilization ratio of whole projector system by newly-increased secondary optics design in fluorescence portion to change light direction.And no matter be transmission-type colour wheel or reflective colour wheel, can use the present invention.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, change of being done and retouching without departing from the spirit and scope of the present invention all belongs to scope of patent protection of the present invention.
Claims (10)
1. a fluorescent powder colour wheel comprises substrate and fluorescence portion, and this fluorescence portion annular is arranged on this substrate, it is characterized in that this fluorescent powder colour wheel also comprises: light collecting part, be adjacent to this fluorescence portion, and this light collecting part is in order to assemble the light that produces after this fluorescence portion excites.
2. fluorescent powder colour wheel as claimed in claim 1 is characterized in that: this light collecting part is the epoxy resin layer that is coated on this fluorescence portion.
3. fluorescent powder colour wheel as claimed in claim 1 is characterized in that: this substrate is a light-transmitting substrate.
4. fluorescent powder colour wheel as claimed in claim 1 is characterized in that: this substrate is the high reflectance substrate.
5. fluorescent powder colour wheel as claimed in claim 4 is characterized in that: this substrate is a sheet metal.
6. fluorescent powder colour wheel as claimed in claim 4 is characterized in that: this light collecting part comprises the groove that is formed on this substrate, and this fluorescence portion is arranged in this groove, and the described light that produces after this fluorescence portion excites reflects this groove through this substrate.
7. fluorescent powder colour wheel as claimed in claim 6 is characterized in that: this fluorescence portion complete filling is in this groove, and the upper surface of this fluorescence portion flushes in the upper surface of this substrate.
8. fluorescent powder colour wheel as claimed in claim 6 is characterized in that: this groove is sphere or paraboloidal deep-slotted chip breaker.
9. fluorescent powder colour wheel as claimed in claim 4, it is characterized in that: this light collecting part is the epoxy resin layer that is coated on this fluorescence portion, this light collecting part is also with so that excitation line focuses on this fluorescence portion, and the described light that produces after this fluorescence portion excites passes this light collecting part once more after this substrate reflection.
10. a projector is characterized in that comprising as any described fluorescent powder colour wheel among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105674229A CN102073115A (en) | 2010-11-19 | 2010-11-19 | Fluorescent powder color wheel and projector applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105674229A CN102073115A (en) | 2010-11-19 | 2010-11-19 | Fluorescent powder color wheel and projector applying same |
Publications (1)
| Publication Number | Publication Date |
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| CN102073115A true CN102073115A (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105674229A Pending CN102073115A (en) | 2010-11-19 | 2010-11-19 | Fluorescent powder color wheel and projector applying same |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029463A1 (en) * | 2011-08-27 | 2013-03-07 | 深圳市光峰光电技术有限公司 | Projection system and light emitting device thereof |
| WO2013056930A1 (en) * | 2011-10-21 | 2013-04-25 | Osram Gmbh | Phosphor wheel, method for producing a phosphor wheel and lighting arrangement |
| CN103116204A (en) * | 2011-11-17 | 2013-05-22 | 深圳市光峰光电技术有限公司 | Color wheel, light source, projector and manufacturing method of color wheel |
| CN103827746A (en) * | 2011-08-16 | 2014-05-28 | 艾斯光学有限公司 | Optical wheel |
| EP2869109A1 (en) | 2013-10-31 | 2015-05-06 | Coretronic Corporation | Wavelenght conversion and filtering module and light source system |
| CN105022218A (en) * | 2012-03-19 | 2015-11-04 | 深圳市光峰光电技术有限公司 | Lighting device and projecting device |
| CN105042517A (en) * | 2012-02-20 | 2015-11-11 | 深圳市光峰光电技术有限公司 | Wavelength conversion device and light emitting device |
| CN105090894A (en) * | 2015-08-21 | 2015-11-25 | 杨毅 | Wavelength conversion device and light emitting device |
| US9274407B2 (en) | 2011-09-22 | 2016-03-01 | Delta Electronics, Inc. | Phosphor device and illumination system and projection apparatus with the same |
| CN107783362A (en) * | 2017-11-29 | 2018-03-09 | 济南金永大传媒科技有限公司 | A kind of shaped fluorescent pink colour wheel for high brightness laser projection |
| US10281810B2 (en) | 2011-09-22 | 2019-05-07 | Delta Electronics, Inc. | Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband light |
| CN111308693A (en) * | 2020-03-30 | 2020-06-19 | 无锡视美乐激光显示科技有限公司 | Filter device, wavelength conversion device, light engine device and projection system |
| US10688527B2 (en) | 2011-09-22 | 2020-06-23 | Delta Electronics, Inc. | Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights with different wavelength peaks |
| US10712648B2 (en) | 2018-05-17 | 2020-07-14 | Coretronic Corporation | Wavelength-converting wheel and projection apparatus |
| US10782603B2 (en) | 2018-07-02 | 2020-09-22 | Coretronic Corporation | Light wavelength conversion element and projection apparatus |
| JP7460970B2 (en) | 2018-10-02 | 2024-04-03 | カシオ計算機株式会社 | Optical wheel, light source device and projection device |
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| CN101836160A (en) * | 2007-07-30 | 2010-09-15 | 绎立锐光科技开发公司 | Multicolor illumination device using moving plate with wavelength conversion materials |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827746B (en) * | 2011-08-16 | 2017-05-24 | 艾斯光学有限公司 | Optical wheel |
| EP2745172B1 (en) * | 2011-08-16 | 2019-07-24 | Eis Optics Limited | Optical wheel |
| CN103827746A (en) * | 2011-08-16 | 2014-05-28 | 艾斯光学有限公司 | Optical wheel |
| WO2013029463A1 (en) * | 2011-08-27 | 2013-03-07 | 深圳市光峰光电技术有限公司 | Projection system and light emitting device thereof |
| US10688527B2 (en) | 2011-09-22 | 2020-06-23 | Delta Electronics, Inc. | Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights with different wavelength peaks |
| US10758937B2 (en) | 2011-09-22 | 2020-09-01 | Delta Electronics, Inc. | Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights |
| US10310363B2 (en) | 2011-09-22 | 2019-06-04 | Delta Electronics, Inc. | Phosphor device with spectrum of converted light comprising at least a color light |
| US10281810B2 (en) | 2011-09-22 | 2019-05-07 | Delta Electronics, Inc. | Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband light |
| US9726335B2 (en) | 2011-09-22 | 2017-08-08 | Delta Electronics, Inc. | Phosphor device and manufacturing method thereof having a second phosphor agent to increase the luminous intensity of a converted color light |
| US9274407B2 (en) | 2011-09-22 | 2016-03-01 | Delta Electronics, Inc. | Phosphor device and illumination system and projection apparatus with the same |
| WO2013056930A1 (en) * | 2011-10-21 | 2013-04-25 | Osram Gmbh | Phosphor wheel, method for producing a phosphor wheel and lighting arrangement |
| CN103116204B (en) * | 2011-11-17 | 2015-02-25 | 深圳市光峰光电技术有限公司 | Color wheel, light source, projector and manufacturing method of color wheel |
| CN103116204A (en) * | 2011-11-17 | 2013-05-22 | 深圳市光峰光电技术有限公司 | Color wheel, light source, projector and manufacturing method of color wheel |
| CN105042517A (en) * | 2012-02-20 | 2015-11-11 | 深圳市光峰光电技术有限公司 | Wavelength conversion device and light emitting device |
| CN105022218A (en) * | 2012-03-19 | 2015-11-04 | 深圳市光峰光电技术有限公司 | Lighting device and projecting device |
| US9341933B2 (en) | 2013-10-31 | 2016-05-17 | Coretronic Corporation | Wavelength conversion and filtering module and light source system |
| EP2869109A1 (en) | 2013-10-31 | 2015-05-06 | Coretronic Corporation | Wavelenght conversion and filtering module and light source system |
| CN105090894A (en) * | 2015-08-21 | 2015-11-25 | 杨毅 | Wavelength conversion device and light emitting device |
| CN107783362A (en) * | 2017-11-29 | 2018-03-09 | 济南金永大传媒科技有限公司 | A kind of shaped fluorescent pink colour wheel for high brightness laser projection |
| CN107783362B (en) * | 2017-11-29 | 2023-09-29 | 深圳市大晟云视传媒科技有限公司 | Conical fluorescent powder color wheel for high-brightness laser projection |
| US10712648B2 (en) | 2018-05-17 | 2020-07-14 | Coretronic Corporation | Wavelength-converting wheel and projection apparatus |
| US10782603B2 (en) | 2018-07-02 | 2020-09-22 | Coretronic Corporation | Light wavelength conversion element and projection apparatus |
| JP7460970B2 (en) | 2018-10-02 | 2024-04-03 | カシオ計算機株式会社 | Optical wheel, light source device and projection device |
| CN111308693A (en) * | 2020-03-30 | 2020-06-19 | 无锡视美乐激光显示科技有限公司 | Filter device, wavelength conversion device, light engine device and projection system |
| CN111308693B (en) * | 2020-03-30 | 2021-05-04 | 无锡视美乐激光显示科技有限公司 | Filter device, wavelength conversion device, light engine device and projection system |
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Application publication date: 20110525 |