US20050128614A1 - Color wheel and color filter assembly thereof - Google Patents
Color wheel and color filter assembly thereofDownload PDFInfo
- Publication number
- US20050128614A1 US20050128614A1US10/802,453US80245304AUS2005128614A1US 20050128614 A1US20050128614 A1US 20050128614A1US 80245304 AUS80245304 AUS 80245304AUS 2005128614 A1US2005128614 A1US 2005128614A1
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- US
- United States
- Prior art keywords
- color filter
- carrier
- filter assembly
- hole
- contact surface
- Prior art date
- 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.)
- Granted
Links
- 239000000969carrierSubstances0.000claimsabstractdescription16
- 239000000463materialSubstances0.000claimsdescription4
- 238000010586diagramMethods0.000description7
- 239000000853adhesiveSubstances0.000description3
- 230000001070adhesive effectEffects0.000description3
- 238000000926separation methodMethods0.000description3
- 238000012986modificationMethods0.000description2
- 230000004048modificationEffects0.000description2
- 230000000994depressogenic effectEffects0.000description1
- 230000003287optical effectEffects0.000description1
Images
Classifications
- 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
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
Definitions
- the present inventionrelates in general to a color wheel and in particular to a color filter assembly thereof providing improved balance and stability of rotation.
- the conventional color wheelcomprises a carrier 11 , a color filter 12 and a motor 2 .
- the color filter 12is fixed to the carrier 11 by adhesive 13 , wherein the carrier 11 is fixed to the shaft 22 at the center of the motor 2 with the cover 21 .
- the motor 2rotates the carrier 11 and the color filter 12 around central axis 10 via the shaft 22 .
- the color filter 12is fixed to the carrier 11 by adhesive 13 , however, the mass of adhesive 13 is difficult to control due to the flow property thereof such that the color wheel is unbalanced. Moreover, rotational instability and vibration may occur due to unbalanced mass distribution of the color wheel. Furthermore, the color filter 12 comprises a plurality of fan-shaped filter segments adhered to each other, hence, precise positioning thereof is difficult and the segments may be separated during rotation at high speed.
- an object of the present inventionis to provide a color wheel and color filter assembly thereof for improving balance and stability of rotation.
- the color filter assemblyrotates around a central axis and comprises a first carrier, a second carrier, a protrusion and a color filter.
- the first carrierhas a first contact surface and a first joining portion protruding therefrom.
- the second carrierhas a second contact surface and a second joining portion connected to the first joining portion.
- the protrusionis disposed on the first or second contact surface.
- the color filterhas an opening with the protrusion inserted therein such that the color filter is fixed between the first and second carriers.
- FIG. 1is a perspective diagram of a conventional color wheel.
- FIG. 2is a perspective diagram of the first embodiment in accordance with the present invention.
- FIG. 3is a perspective diagram of the first carrier based on FIG. 2 in accordance with the present invention.
- FIG. 4is a perspective diagram of the second embodiment in accordance with the present invention.
- FIG. 5is a perspective diagram of the second carrier based on FIG. 4 in accordance with the present invention.
- FIGS. 6 and 7are perspective diagrams of the third embodiment in accordance with the present invention.
- FIGS. 8 and 9are perspective diagrams of the fourth embodiment in accordance with the present invention.
- the color wheelhas a motor 4 and a color filter assembly including a first carrier 31 , a second carrier 41 and a color filter 32 comprising four filter segments 32 a , 32 b , 32 c and 32 d symmetrical to the central axis 30 , wherein the filter segments 32 a , 32 b , 32 c and 32 d form an opening 320 at the center of the color filter 32 .
- the first carrier 31has a first joining portion 310 and a plurality of protrusions 312 projecting from the first contact surface 314 , and each filter segment has an opening 321 corresponding to the protrusions 312 .
- the second carrier 41has a second joining portion 410 forming a depression 411 for receiving the first joining portion 310 along the central axis 30 , wherein the first and second joining portions 310 , 410 are threaded and joined thereby.
- the color filter 32is firmly secured between the first and second carriers 31 , 41 by seating the protrusions 312 in the corresponding openings 321 of the filter segments 32 a , 32 b , 32 c , 32 d and connecting the second joining portion 410 to the first joining portion 310 .
- the first joining portion 310is disposed at the center of the first carrier 31 and projects from the first contact surface 314 .
- the protrusions 312are parallel and disposed around the first joining portion 310 and inserted into the corresponding openings 321 of the filter segments 32 a , 32 b , 32 c and 32 d such that the color filter 32 is fixed to the first carriers 31 for preventing separation during rotation. Furthermore, each protrusion 312 is enclosed by a flexible material 313 deformed when joining the opening 321 to firmly secure the color filter 32 on the first carrier 31 .
- the color filter 32comprises four filter segments 32 a , 32 b , 32 c and 32 d symmetrical to the central axis 30 of the color wheel.
- the filter segments 32 a , 32 b , 32 c and 32 dform an opening 320 at the center of the color filter 32 .
- the second carrier 41has a plurality of protrusions 312 projecting from the second contact surface 414 , and each filter segment has an opening 321 corresponding to the protrusions 312 .
- the second carrier 41has a second joining portion 410 forming a depression 411 for receiving the first joining portion 310 along the central axis 30 .
- the first and second joining portions 310 , 410are threaded and joined thereby.
- the color filter 32is thereby precisely positioned and firmly secured between the first and second carriers 31 , 41 by seating the protrusions 312 through the corresponding openings 321 of the filter segments 32 a , 32 b , 32 c , 32 d and joining the second joining portions 410 to the first joining portions 310 .
- the second joining portion 410is at the center of the second carrier 41 and depressed from the second contact surface 414 .
- a plurality of protrusions 312project from the second contact surface 414 and are inserted into the corresponding openings 321 of the filter segments 32 a , 32 b , 32 c such that the color filter 32 is fixed thereto for preventing separation during rotation.
- each protrusion 312is enclosed by a flexible material 313 deformed when joining the opening 321 to firmly secure the color filter 32 on the second carrier 41 .
- the color wheelhas a motor 4 and a color filter assembly including a first carrier 31 , a second carrier 41 , a securing member 50 and a color filter 32 comprising four filter segments 32 a , 32 b , 32 c and 32 d symmetrically surrounding the central axis 30 and forming an opening 320 at the center of the color filter 32 .
- the first carrier 31has a plurality of first holes 70
- the second carrier 41has a plurality of corresponding second holes 60 .
- the securing member 50comprises a plurality of rods 51 and abutting members 52 connected thereto. As shown in FIG.
- the rods 51pass through the second holes 60 , the openings 321 and the first holes 70 with the abutting members 52 secured at both ends, and the color filter 32 is thereby firmly fixed between the first and second carriers 31 , 41 .
- the abutting members 52are threaded on the surface of the hole 53 , and the rods 51 are also threaded corresponding thereto for secure connection.
- the color wheelhas a motor 4 and a color filter assembly including a first carrier 31 , a second carrier 41 , a securing member 50 and a color filter 32 comprising four filter segments 32 a , 32 b , 32 c and 32 d symmetrically surrounding the central axis 30 and forming an opening 320 at the center of the color filter 32 .
- the first carrier 31has a plurality of first holes 70
- the second carrier 41has a plurality of corresponding second holes 60 .
- the securing member 50comprises a plurality of threaded rods 51 with integrally formed abutting members 52 . As shown in FIG. 9 , the rods 51 pass through the second holes 60 , the openings 321 , and are inserted into the first holes 70 and sequentially tightened.
- the color filter 32is thereby firmly secured between the first and second carriers 31 , 41 .
- the color wheel of the present inventionfurther provides a circuit board 5 connected to the motor 4 for supplying driving power.
- the motor 4rotates the first carrier 31 , the second carrier 41 and the color filter 32 around the central axis 30 .
- the present inventionprovides a color wheel utilized for an optical device such as a DLP projector.
- the color filter 32can be fixed to the first carrier 31 by inserting the protrusions 312 into the openings 321 according to FIG. 2 .
- the first and second joining portions 310 , 410are connected such that the color filter 32 is further firmly secured between the first and second carriers 31 , 41 thus preventing separation during rotation.
- the aforementioned protrusions 312can be represented by the rods 51 and the abutting members 52 .
- the rods 51are sequentially inserted through the second holes 60 , the openings 321 and the first holes 70 such that the color filter 32 is firmly secured between the first and second carriers 31 , 41 .
- the present inventionhas simple structure capable of improving balance and stability of rotation.
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates in general to a color wheel and in particular to a color filter assembly thereof providing improved balance and stability of rotation.
- 2. Description of the Related Art
- Referring to
FIG. 1 , the conventional color wheel comprises acarrier 11, acolor filter 12 and amotor 2. Thecolor filter 12 is fixed to thecarrier 11 byadhesive 13, wherein thecarrier 11 is fixed to the shaft22 at the center of themotor 2 with thecover 21. Themotor 2 rotates thecarrier 11 and the color filter12 around central axis10 via the shaft22. - As mentioned, the
color filter 12 is fixed to thecarrier 11 byadhesive 13, however, the mass ofadhesive 13 is difficult to control due to the flow property thereof such that the color wheel is unbalanced. Moreover, rotational instability and vibration may occur due to unbalanced mass distribution of the color wheel. Furthermore, thecolor filter 12 comprises a plurality of fan-shaped filter segments adhered to each other, hence, precise positioning thereof is difficult and the segments may be separated during rotation at high speed. - Accordingly, an object of the present invention is to provide a color wheel and color filter assembly thereof for improving balance and stability of rotation. The color filter assembly rotates around a central axis and comprises a first carrier, a second carrier, a protrusion and a color filter. The first carrier has a first contact surface and a first joining portion protruding therefrom. The second carrier has a second contact surface and a second joining portion connected to the first joining portion. The protrusion is disposed on the first or second contact surface. The color filter has an opening with the protrusion inserted therein such that the color filter is fixed between the first and second carriers.
- The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings, given by way of illustration only and thus not intended to be limitative of the present invention.
FIG. 1 is a perspective diagram of a conventional color wheel.FIG. 2 is a perspective diagram of the first embodiment in accordance with the present invention.FIG. 3 is a perspective diagram of the first carrier based onFIG. 2 in accordance with the present invention.FIG. 4 is a perspective diagram of the second embodiment in accordance with the present invention.FIG. 5 is a perspective diagram of the second carrier based onFIG. 4 in accordance with the present invention.FIGS. 6 and 7 are perspective diagrams of the third embodiment in accordance with the present invention.FIGS. 8 and 9 are perspective diagrams of the fourth embodiment in accordance with the present invention.- Referring to
FIG. 2 , the color wheel has amotor 4 and a color filter assembly including afirst carrier 31, asecond carrier 41 and acolor filter 32 comprising fourfilter segments central axis 30, wherein thefilter segments opening 320 at the center of thecolor filter 32. - As shown in
FIG. 2 , thefirst carrier 31 has a first joiningportion 310 and a plurality ofprotrusions 312 projecting from thefirst contact surface 314, and each filter segment has anopening 321 corresponding to theprotrusions 312. Thesecond carrier 41 has a second joiningportion 410 forming adepression 411 for receiving thefirst joining portion 310 along thecentral axis 30, wherein the first and second joiningportions color filter 32 is firmly secured between the first andsecond carriers protrusions 312 in thecorresponding openings 321 of thefilter segments portion 410 to thefirst joining portion 310. - Referring to
FIG. 3 , the first joiningportion 310 is disposed at the center of thefirst carrier 31 and projects from thefirst contact surface 314. Theprotrusions 312 are parallel and disposed around the first joiningportion 310 and inserted into thecorresponding openings 321 of thefilter segments color filter 32 is fixed to thefirst carriers 31 for preventing separation during rotation. Furthermore, eachprotrusion 312 is enclosed by aflexible material 313 deformed when joining theopening 321 to firmly secure thecolor filter 32 on thefirst carrier 31. - Referring to
FIG. 4 , thecolor filter 32 comprises fourfilter segments central axis 30 of the color wheel. As mentioned, thefilter segments opening 320 at the center of thecolor filter 32. Thesecond carrier 41 has a plurality ofprotrusions 312 projecting from thesecond contact surface 414, and each filter segment has anopening 321 corresponding to theprotrusions 312. Moreover, thesecond carrier 41 has a second joiningportion 410 forming adepression 411 for receiving the first joiningportion 310 along thecentral axis 30. The first and second joiningportions color filter 32 is thereby precisely positioned and firmly secured between the first andsecond carriers protrusions 312 through thecorresponding openings 321 of thefilter segments portions 410 to the first joiningportions 310. - As shown in
FIG. 5 , the second joiningportion 410 is at the center of thesecond carrier 41 and depressed from thesecond contact surface 414. A plurality ofprotrusions 312 project from thesecond contact surface 414 and are inserted into thecorresponding openings 321 of thefilter segments color filter 32 is fixed thereto for preventing separation during rotation. Furthermore, eachprotrusion 312 is enclosed by aflexible material 313 deformed when joining theopening 321 to firmly secure thecolor filter 32 on thesecond carrier 41. - Referring to
FIG. 6 , the color wheel has amotor 4 and a color filter assembly including afirst carrier 31, asecond carrier 41, a securingmember 50 and acolor filter 32 comprising fourfilter segments central axis 30 and forming anopening 320 at the center of thecolor filter 32. InFIGS. 6 and 7 , thefirst carrier 31 has a plurality offirst holes 70, and thesecond carrier 41 has a plurality of correspondingsecond holes 60. The securingmember 50 comprises a plurality ofrods 51 and abuttingmembers 52 connected thereto. As shown inFIG. 7 , therods 51 pass through thesecond holes 60, theopenings 321 and thefirst holes 70 with theabutting members 52 secured at both ends, and thecolor filter 32 is thereby firmly fixed between the first andsecond carriers abutting members 52 are threaded on the surface of thehole 53, and therods 51 are also threaded corresponding thereto for secure connection. - Referring to
FIG. 8 , the color wheel has amotor 4 and a color filter assembly including afirst carrier 31, asecond carrier 41, a securingmember 50 and acolor filter 32 comprising fourfilter segments central axis 30 and forming anopening 320 at the center of thecolor filter 32. InFIGS. 8 and 9 , thefirst carrier 31 has a plurality offirst holes 70, and thesecond carrier 41 has a plurality of correspondingsecond holes 60. The securingmember 50 comprises a plurality of threadedrods 51 with integrally formed abuttingmembers 52. As shown inFIG. 9 , therods 51 pass through thesecond holes 60, theopenings 321, and are inserted into thefirst holes 70 and sequentially tightened. Thecolor filter 32 is thereby firmly secured between the first andsecond carriers - As shown in
FIG. 8 , the color wheel of the present invention further provides acircuit board 5 connected to themotor 4 for supplying driving power. Themotor 4 rotates thefirst carrier 31, thesecond carrier 41 and thecolor filter 32 around thecentral axis 30. - In summary, the present invention provides a color wheel utilized for an optical device such as a DLP projector. The
color filter 32 can be fixed to thefirst carrier 31 by inserting theprotrusions 312 into theopenings 321 according toFIG. 2 . Furthermore, the first and second joiningportions color filter 32 is further firmly secured between the first andsecond carriers FIG. 6 , theaforementioned protrusions 312 can be represented by therods 51 and theabutting members 52. Therods 51 are sequentially inserted through thesecond holes 60, theopenings 321 and thefirst holes 70 such that thecolor filter 32 is firmly secured between the first andsecond carriers - While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation to encompass all such modifications and similar arrangements.
Claims (14)
1. A color filter assembly rotating around a central axis thereof, comprising:
a first carrier having a first contact surface and a first joining portion protruding wherefrom;
a second carrier having a second contact surface and a second joining portion connected to the first joining portion, wherein the first and second joining portions are threaded and joined thereby;
a protrusion disposed on the first or second contact surface; and
a color filter having a receiving portion with the protrusion inserted therein such that the color filter is fixed between the first and second carriers.
2. The color filter assembly as claimed inclaim 1 , wherein the protrusion is enclosed by a flexible material.
3. (canceled)
4. A color filter assembly rotating around a central axis thereof, including:
a first carrier having a first contact surface and at least a first hole disposed thereon;
a second carrier having a second contact surface and at least a second hole disposed thereon;
a color filter disposed between the first and second contact surface, having at least an opening disposed thereon; and
a securing member having at least a rod fastened through the first hole, the opening and the second hole such that the color filter is fixed between the first and second carriers.
5. The color filter assembly as claimed inclaim 4 , wherein the securing member has two abutting members joined to the rod for securing the color filter between the first and second carriers.
6. A color filter assembly rotating around a central axis thereof, including:
a first carrier having a first contact surface and at least a first hole formed therein;
a second carrier having a second contact surface and at least a second hole disposed thereon;
a color filter disposed between the first and second contact surfaces, having at least an opening formed therein; and
a securing member having at least a rod inserted through the first hole, the opening and the second hole and at least an abutting member connected to the rod for securing the color filter between the first and second carriers.
7. The color filter assembly as claimed inclaim 6 , wherein the rod, the first hole, the opening and the second hole are threaded for joining the color filter, the first and second carriers.
8. A color wheel, including:
a color filter assembly ofclaim 1; and
a rotator having a shaft rotating the color filter assembly around the central axis.
9. (canceled)
10. The color wheel as claimed inclaim 8 , wherein the protrusion is enclosed by a flexible material.
11. A color wheel, including:
a color filter assembly ofclaim 4; and
a rotator having a shaft rotating the color filter assembly around the central axis.
12. The color wheel as claimed inclaim 11 , wherein the securing member has two abutting members threaded and joined to the rod for securing the color filter between the first and second carriers.
13. A color wheel, including:
a color filter assembly ofclaim 6; and
a rotator having a shaft rotating the color filter assembly around the central axis.
14. The color filter assembly as claimed inclaim 13 , wherein the rod, the first hole, the opening and the second hole are threaded for securing the color filter between the first and second carriers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW92135348 | 2003-12-15 | ||
| TW092135348ATWI245157B (en) | 2003-12-15 | 2003-12-15 | Color wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| US20050128614A1true US20050128614A1 (en) | 2005-06-16 |
| US6914734B1 US6914734B1 (en) | 2005-07-05 |
Family
ID=34651852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/802,453Expired - Fee RelatedUS6914734B1 (en) | 2003-12-15 | 2004-03-17 | Color wheel and color filter assembly thereof |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6914734B1 (en) |
| JP (1) | JP3983744B2 (en) |
| TW (1) | TWI245157B (en) |
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| US6999253B1 (en)* | 2004-09-02 | 2006-02-14 | Minebea Co., Ltd. | Color wheel assembly with color wheel attached directly to driving motor |
| US20060044526A1 (en)* | 2004-09-02 | 2006-03-02 | Minebea Co., Ltd. | Method of fixing color wheel to motor |
| US20060103813A1 (en)* | 2004-11-09 | 2006-05-18 | Minebea Co., Ltd. | Color wheel, and method and jig for producing same |
| US20060238909A1 (en)* | 2005-04-22 | 2006-10-26 | Unaxis Balzers Ltd. | Color wheel with aligned segments |
| US20070053089A1 (en)* | 2005-09-02 | 2007-03-08 | Delta Electronics Inc. | Color wheel |
| US20070211180A1 (en)* | 2004-05-25 | 2007-09-13 | Samsung Electronics Co., Ltd. | Optical Engine Apparatus And Projection Television Using The Same |
| US20090179597A1 (en)* | 2007-12-18 | 2009-07-16 | Christian James Salmon | Gaming Machine And A Network Of Gaming Machines |
| CN105180079A (en)* | 2015-07-17 | 2015-12-23 | 广州市浩洋电子有限公司 | Color wheel system for stage lamp |
| US20170269461A1 (en)* | 2016-03-15 | 2017-09-21 | Panasonic Intellectual Property Management Co., Ltd. | Phosphor wheel, light source device, and projector-type image display apparatus |
| US20180059403A1 (en)* | 2015-01-07 | 2018-03-01 | Sony Corporation | Rotor unit, rotor, and projector |
| CN110045572A (en)* | 2018-01-17 | 2019-07-23 | 深圳光峰科技股份有限公司 | Colour wheel mould group and projection arrangement |
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| TWI265321B (en)* | 2004-01-30 | 2006-11-01 | Asia Optical Co Inc | Color wheel apparatus |
| JP4678479B2 (en)* | 2004-08-06 | 2011-04-27 | ミネベア株式会社 | Color wheel |
| TWI271597B (en)* | 2005-08-04 | 2007-01-21 | Young Optics Inc | Color wheel |
| US7497579B2 (en)* | 2005-09-02 | 2009-03-03 | Hewlett-Packard Development Company, L.P. | Active color wheel |
| WO2007051608A1 (en)* | 2005-11-04 | 2007-05-10 | Oc Oerlikon Balzers Ag | Balancing method for color wheel |
| TWI307809B (en)* | 2006-04-04 | 2009-03-21 | Young Optics Inc | Color wheel and assembly method thereof |
| DE102006020648B4 (en)* | 2006-05-02 | 2020-06-10 | Oerlikon Trading Ag, Trübbach | Process for producing a color wheel |
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| TW200821729A (en)* | 2006-11-01 | 2008-05-16 | Young Optics Inc | Color wheel and filter assembly thereof |
| CN101206388A (en)* | 2006-12-21 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | color wheel |
| TW200834220A (en)* | 2007-02-12 | 2008-08-16 | Young Optics Inc | Color wheel |
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| CN112630955B (en)* | 2020-12-24 | 2023-04-07 | 西安中科立德红外科技有限公司 | Compact type rapid filter wheel device and control method thereof |
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| US20070211180A1 (en)* | 2004-05-25 | 2007-09-13 | Samsung Electronics Co., Ltd. | Optical Engine Apparatus And Projection Television Using The Same |
| US20060044656A1 (en)* | 2004-09-02 | 2006-03-02 | Minebea Co., Ltd. | Color wheel assembly with color wheel attached directly to driving motor |
| US20060044526A1 (en)* | 2004-09-02 | 2006-03-02 | Minebea Co., Ltd. | Method of fixing color wheel to motor |
| US7113353B2 (en)* | 2004-09-02 | 2006-09-26 | Minebea Co., Ltd. | Method of fixing color wheel to motor |
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| US20060238909A1 (en)* | 2005-04-22 | 2006-10-26 | Unaxis Balzers Ltd. | Color wheel with aligned segments |
| DE102005029296B4 (en) | 2005-06-22 | 2019-09-19 | Oerlikon Surface Solutions Ag, Pfäffikon | Color wheel with self-aligned segments |
| DE102005029296A1 (en)* | 2005-06-22 | 2007-01-04 | Oc Oerlikon Balzers Ag | Color wheel with self-aligned segments |
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| US20090179597A1 (en)* | 2007-12-18 | 2009-07-16 | Christian James Salmon | Gaming Machine And A Network Of Gaming Machines |
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| CN105180079A (en)* | 2015-07-17 | 2015-12-23 | 广州市浩洋电子有限公司 | Color wheel system for stage lamp |
| US10268111B2 (en)* | 2016-03-15 | 2019-04-23 | Panasonic Intellectual Property Management Co., Ltd. | Phosphor wheel, light source device, and projector-type image display apparatus |
| US20170269461A1 (en)* | 2016-03-15 | 2017-09-21 | Panasonic Intellectual Property Management Co., Ltd. | Phosphor wheel, light source device, and projector-type image display apparatus |
| CN110045572A (en)* | 2018-01-17 | 2019-07-23 | 深圳光峰科技股份有限公司 | Colour wheel mould group and projection arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200519514A (en) | 2005-06-16 |
| US6914734B1 (en) | 2005-07-05 |
| JP3983744B2 (en) | 2007-09-26 |
| TWI245157B (en) | 2005-12-11 |
| JP2005181957A (en) | 2005-07-07 |
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