WO2019140781A1 - Module de roue de couleur et dispositif de projection - Google Patents

Module de roue de couleur et dispositif de projection Download PDF

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Publication number
WO2019140781A1
WO2019140781A1 PCT/CN2018/080884 CN2018080884W WO2019140781A1 WO 2019140781 A1 WO2019140781 A1 WO 2019140781A1 CN 2018080884 W CN2018080884 W CN 2018080884W WO 2019140781 A1 WO2019140781 A1 WO 2019140781A1
Authority
WO
WIPO (PCT)
Prior art keywords
color wheel
balance
balance member
wheel module
base plate
Prior art date
Application number
PCT/CN2018/080884
Other languages
English (en)
Chinese (zh)
Inventor
戴达炎
李屹
Original Assignee
深圳光峰科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2019140781A1 publication Critical patent/WO2019140781A1/fr

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Classifications

    • 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
    • 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
    • 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

Definitions

  • the present application relates to the field of projection devices, and in particular, to a color wheel module and a projection device.
  • a color wheel is generally added between the projection light source of the projection device and the display panel, so that the light beam from the projection light source passes through
  • the color wheel has color after filtering. Since the color wheel has a light conversion layer, when the color wheel rotates rapidly, the light beam passing through the light conversion layer exhibits different colors, and after being reflected or projected, a color pattern is displayed on the display panel.
  • the color wheel module may be unbalanced.
  • the technical problem to be solved by the present application is to provide a color wheel module, which can remove a part of the balance piece to make the dynamic balance of the color wheel module meet the demand when the dynamic balance of the color wheel module does not meet the demand, and By increasing the heat dissipation area of the color wheel module, the heat dissipation efficiency of the color wheel module is improved.
  • a technical solution adopted by the present application is: providing a color wheel module, the color wheel module comprising: a base plate, a light conversion layer and a plurality of balance members, wherein the light conversion layer is covered a plurality of balance members are disposed on the other side surface of the base plate remote from the light conversion layer and spaced apart from the rotation center of the base plate, wherein the balance member can be dynamically balanced according to the color wheel module
  • the demand is at least partially removed from the base plate, and the plurality of balance members are also used to increase the heat dissipation area of the color wheel module to improve the heat dissipation efficiency of the color wheel module.
  • Another technical solution adopted by the present application is to provide a projection device including the color wheel module described above. ⁇ 0 2019/140781 ⁇ (:17(: ⁇ 2018/080884
  • the color wheel module of the present application includes: a base plate, a light conversion layer and a plurality of balance members, and the light conversion layer covers one side surface of the base plate a plurality of balance members are disposed on the other side surface of the base plate away from the light conversion layer and spaced around the rotation center of the base plate, wherein the balance member can be at least partially moved from the base plate according to the dynamic balance requirement of the color wheel module.
  • a plurality of balance members are also used to increase the heat dissipation area of the color wheel module to improve the heat dissipation efficiency of the color wheel module.
  • the balance member can be at least partially removed from the base plate according to the dynamic balance requirement of the color wheel module, the movement of the color wheel module can be made by removing part of the balance member when the dynamic balance of the color wheel module is not satisfactory.
  • the balance meets the demand.
  • the plurality of balance members are disposed on the base plate, the base plate and the balance member can dissipate heat to the color wheel module, increase the heat dissipation area of the color wheel module, and improve the color wheel mode. The heat dissipation efficiency of the group.
  • FIG. 1 is a schematic cross-sectional view of a color wheel module according to a first embodiment of the present application
  • FIG. 2 is a schematic structural view of a color wheel module according to a second embodiment of the present application.
  • FIG. 1 is a schematic structural view of a color wheel module according to another embodiment of the second embodiment of the present application.
  • FIG. 3 is a schematic structural view of a color wheel module according to a third embodiment of the present application.
  • FIG. 4 is a schematic structural view of a color wheel module according to a fourth embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a projection apparatus according to an embodiment of the present application.
  • FIG. 1 is a schematic cross-sectional view of a color wheel module according to a first embodiment of the present application.
  • the color wheel module 10 includes a base 11, a light conversion layer 12, and a plurality of balance members 13.
  • the light conversion layer 12 is covered on one side surface of the substrate 11.
  • a plurality of balance members 13 are disposed on the other side surface of the base plate 11 away from the light conversion layer 12 and spaced apart around the rotation center of the base plate 11, wherein the balance member 13 can be moved according to the color wheel module 10
  • the balancing requirements are at least partially removed from the base plate 11.
  • the plurality of balancing members 13 are also used to increase the heat dissipation area of the color wheel module 10 to improve the heat dissipation efficiency of the color wheel module.
  • the color wheel module 10 further includes a drive motor 14 for driving the base 11 to rotate.
  • the color wheel module 10 includes a reflective layer 15 disposed between the light conversion layer 12 and the substrate 11.
  • the reflective layer 15 is for reflecting the colored light beam generated after conversion by the light conversion layer 12.
  • the color wheel module 10 includes a transmissive layer (not shown) disposed between the light conversion layer 12 and the substrate 11.
  • the transmission layer is for transmitting a colored light beam generated after conversion by the light conversion layer 12.
  • the shape of the base 11 is circular.
  • the shape of the base plate 11 may be a polygon such as a triangle, a quadrangle, a pentagon, or a hexagon, which is not limited in this application.
  • the material of the base plate 11 may be metal, and the metal material may be copper, copper, copper alloy or aluminum alloy. In other embodiments, the material of the base plate 11 may be a polymer material, which is not limited in this application.
  • the diameter of the base plate 11 may range from 5 ⁇ 111111 to 150 _, for example, the diameter of the base plate 11 may be 50111111, 100111111 or 150111111. In the present embodiment, the diameter of the base 11 is 100_1.
  • the base plate 11 may include a first disk body 111 at a center of rotation and a second disk body 112 disposed around the first disk body 111.
  • the second disk body 112 is coupled to the first disk body 111.
  • the second disk body 112 is integrally formed with the first disk body 111.
  • the outer circumference of the first disk body 111 may be half the size of the outer circumference of the second disk body 112. For example, when the outer diameter of the first disk 111 is eight, the outer diameter of the second disk 112 may be
  • the outer diameter of the first disc body may range from 40 to 6 () 111111, and the outer diameter of the second disc body may be 80 to 120111111.
  • the outer diameter of the first disk body may be 40111111, 50111111 or 6() 111111, and the outer diameter of the second disk body may be 80111111, 100111111 or 120111111.
  • the outer diameter of the first disk body is 50111111, and the outer diameter of the second disk body is 100111111.
  • the thickness of the first disk body 111 is smaller than the thickness of the second disk body 112. In other embodiments, the thickness of the first disk 111 may be greater than or equal to the thickness of the second disk 112, which is not limited herein.
  • the light conversion layer 12 is for converting a light beam (white light) of a projection light source into an image light beam (color light) having a color.
  • the light conversion layer 12 may be composed of a phosphor layer.
  • the light conversion layer 12 may be composed of a red phosphor, a blue phosphor, and a green phosphor in a predetermined ratio.
  • the light conversion layer 12 may be composed of a filter.
  • the light conversion layer 12 may be a predetermined ratio of three filters of a red filter, a blue filter, and a green filter. Composition.
  • the light conversion layer 12 is covered on one side surface of the base plate 11.
  • the light conversion layer 12 may be partially disposed on one side surface of the second disk body 112, and the light conversion layer 12 is all disposed at the second surface.
  • the light conversion layer 12 is entirely disposed on one side surface of the second disk body 112, that is, the projection size of the light conversion layer 12 on the substrate 11 is the same as the size of one side surface of the second disk body 112. .
  • the reflective layer 15 is disposed between the light conversion layer 12 and the substrate 11.
  • the projection of the light conversion layer 12 on the substrate 11 can completely cover the projection of the reflective layer 15 on the substrate 11, and the projected area of the light conversion layer 12 on the substrate 11 is larger than that of the reflective layer 15.
  • the projection of the light conversion layer on the substrate 11 may fall into the projection of the reflective layer 15 on the substrate 11, and the projected area of the light conversion layer 12 on the substrate 11 is less than or equal to the reflective layer 15.
  • the color wheel module 10 can include a transmissive layer disposed between the light converting layer 12 and the substrate 11.
  • the position of the projection layer on the base plate 11 may be similar to the position of the reflective layer 15, and will not be described again.
  • the first disk body 111 is provided with an opening (not shown) for arranging the driving motor 14, and the driving motor 14 is fixedly connected to the first disk body 111 by extending into the opening.
  • the shape of the opening is not limited to a circle, a polygon or other shapes.
  • Optional drive motor ⁇ 0 2019/140781 ⁇ (:17(: ⁇ 2018/080884
  • connection between the 14 and the first body 111 may be glued, snapped or screwed.
  • At least one spoke 16 is disposed on a side surface of the first disc body 111 away from the light conversion layer 12, and the spoke 16 is integrally formed with the first disc body 111 and fixedly connected to the second disc body 112. Between the drive motor 14.
  • the number of the spokes 16 is four, and the four spokes 16 are uniformly disposed on one side surface of the first disk body 111 away from the light conversion layer 12.
  • a plurality of balance members 13 are disposed on the other side surface of the base 11 away from the light conversion layer 12. Further, a plurality of balance members 13 may be disposed on a surface of the second disk body 112 remote from the light conversion layer 12. By arranging the light conversion layer 12 on one side surface of the second disk body 112, the balance member 13 is disposed on the other side surface of the second disk body 112 remote from the light conversion layer 12, enabling the color wheel to emit when performing light conversion The heat is diffused through the base 11 and the balance member 13, thereby improving the heat dissipation capability of the color wheel module 10.
  • the material of the balance member may be metal. In other embodiments, the material of the balance member may be a polymer material, which is not limited in this application.
  • the Brinell hardness of the metal material ranges from 13 ⁇ 425 to 200.
  • the metal material may have a Brinell hardness of 13 ⁇ 425, 1 ⁇ 100 or 1 ⁇ 200.
  • the material of the balance member 13 may be copper, copper, copper alloy or aluminum alloy.
  • the balance member 13 is made of copper.
  • the material of the balance member 13 may be the same as the material of the base plate 11.
  • a heat dissipating material may also be coated on the base plate 11 and/or the balance member 13 to further improve the heat dissipation capability of the color wheel module 10.
  • the heat dissipating material may be graphite, a resin composition or the like, which is not limited herein.
  • the number of the balance members 13 should be at least three, and the balance member 13 is evenly disposed on the surface of the second disk body 112 away from the light conversion layer 12.
  • a balance piece Between the first directions, the direction from the light conversion layer 12 to the base 11 may be.
  • the length of the balance member 13 in the first direction may be 5111111, 15111111, or 25111111. ⁇ 0 2019/140781 ⁇ (:17(: ⁇ 2018/080884
  • a plurality of balance members 13 are disposed on the second disk body 112 in an equally spaced circumferential array.
  • the balance members 13 may be disposed at equal intervals and in a polygonal shape on the surface of the second disk body 112 remote from the light conversion layer 12.
  • the polygon may be a triangle, a quadrangle or a pentagon or the like.
  • the balance member 13 is fixedly coupled to the base plate 11.
  • the balance member 13 and the base plate 11 are integrally formed.
  • the balance member 13 can be threadedly coupled to the base plate 11.
  • the base plate 11 is provided with a groove, the groove is provided with an internal thread, the balance member 13 is provided with an external thread, the external thread is matched with the internal thread, and the balance member 13 and the base plate 11 are threadedly engaged, thereby making the balance member
  • the 13 base disk 11 is fixedly attached to the base plate 11.
  • the balance member 13 can be welded or snapped onto the base plate 11. The manner in which the balance member 13 is connected to the base 11 is not limited in the present application.
  • the balance member 13 is used to remove the balance member 13 by cutting the balance member 13 when the color wheel module 10 is unbalanced, thereby balancing the color wheel module 10.
  • the trimming balance member 13 may be a partial balance member 13 for trimming a balance member 13, or may be a whole balance member 13 for trimming.
  • FIG. 2 is a schematic structural diagram of a color wheel module according to a second embodiment of the present application.
  • the balance member of the color wheel module 20 may be a column balance member 23.
  • the base 21, the light conversion layer 22, the drive motor 24, and the reflective layer 25 may be the same as the base 11, the light conversion layer 12, the drive motor 14, and the reflective layer 15 in the first embodiment, and details are not described herein. .
  • the columnar balance member 23 may be in the shape of a cylinder, a truncated cone, a cone, a prism, a prism or a pyramid.
  • the prism may be a prism such as a triangular prism, a quadrangular prism or a pentagonal prism; the prism may be a triangular prism, a quadrangular prism or a pentagonal prism; the pyramid may be a pyramid such as a triangular pyramid, a quadrangular pyramid or a pentagonal pyramid.
  • the columnar balance member 23 when the columnar balance member 23 is in the shape of a cylinder, a circular table, a prism or a prism, both ends thereof may be connected to the base plate 21.
  • the shape of the columnar balance member 23 is a cone or a pyramid, the bottom surface of the cone or the bottom surface of the pyramid is connected to the base 21.
  • the shape of the column balance member 23 may also be a combined shape.
  • the column balance member 23 may be divided into a first segment and a second segment, and the first segment and the second segment are integrally formed, the first segment Connected between the base 21 and the second section, the first section may be in the shape of a cylinder or a truncated cone, the second section may be in the shape of a cone or a hemisphere, or the first section may be in the shape of a prism or a rib, second
  • the shape of the segment can be a pyramid.
  • the shape of the combination is not limited in the embodiment of the present application.
  • the shape of the columnar balance member 23 is a cylinder. ⁇ 0 2019/140781 ⁇ (:17(: ⁇ 2018/080884
  • a column balancer for example, the length of the columnar balance member 23 in the first direction may be 5111111, 10111111, or 15111111. In the present embodiment, the length of the columnar balance member 23 in the first direction is 10111111.
  • a column balance member for example, the columnar balance member 23 may have a diameter of 1111111, 2111111, or 3111111. In the present embodiment, the columnar balance member 23 has a diameter of 2_1. In other embodiments, the columnar balance member 23 may have other diameters, which is not limited in the application.
  • the distance between any adjacent column-shaped balance members is greater than 5111111 to improve heat dissipation efficiency.
  • the columnar balance member 23 can be vertically disposed on the base 21.
  • the columnar balance member 23 may be disposed obliquely on the base plate 21.
  • the projection of the columnar balance member 23 on the base plate 21 may be the same as or opposite to the direction of movement of the balance member.
  • a ring-shaped balance member 23 is disposed on the base 21 centering on the center of rotation.
  • the number of the columnar balance members 23 in the one-row columnar balance member 23 is 30 and is set in a diameter range of 50 to 10 ⁇ 111111.
  • the number of columnar balance members 23 in the one-row columnar balance member 23 is 30 and is set by the diameters 50111111, 65111111 or 1001X11X1.
  • a plurality of columnar balance members 23 are disposed on the base 21 centering on the center of rotation.
  • FIG. 2 & FIG. 2 & FIG. 2 is a schematic structural view of a color wheel module according to another embodiment of the second embodiment of the present application.
  • the columnar balance member 23 & 4 sets of ring-shaped balance members 23 & columnar balance piece 23 is the number 30.
  • the columnar balance member 23 can be at least partially removed from the base plate 21 according to the dynamic balance requirement of the color wheel module 20, that is, when the base plate 21 is unbalanced, a portion of the columnar balance member 23 is removed by cutting the columnar balance member 23. To balance the base plate 21. It should be understood that the trimming column-shaped balance member 23 may be a partial column-shaped balance member 23 for cutting a column-shaped balance member 23, or a complete column-shaped balance member 23 may be cut.
  • a balance adjusting member may be disposed on the column balance member 23, and the balance adjusting member cooperates with the column balance member 23 to adjust the balance adjusting member when the dynamic balance of the color wheel module 20 is not satisfactory.
  • the position on the column balance member 23 is such that the dynamic balance of the color wheel module 20 satisfies the demand.
  • the outer surface of the column balance member 23 may be provided with an external thread
  • the balance adjusting member may be provided with an internal thread
  • the external thread is matched with the internal thread.
  • FIG. 3 is a schematic structural diagram of a balance member according to a third embodiment of the present application.
  • the balance member of the color wheel module 30 may be a sheet-like balance member 33.
  • the sheet-like balance member 33 is also used to increase the air flow rate around the sheet-like balance member 33 to further improve the heat dissipation efficiency of the color wheel module 30.
  • the base 31, the light conversion layer 32, the drive motor 34, and the reflective layer 35 may be the same as the base 11, the light conversion layer 12, the drive motor 14, and the reflective layer 15 in the first embodiment. I will not repeat them here.
  • the length of the sheet-like balance member 33 in the first direction may not be constant. In another embodiment, the length of the sheet-like balance member 33 in the first direction may be varied, for example, the length of the sheet-like balance member 33 in the first direction increases or decreases in the second direction, the first The second direction is the direction in which the second disk body points to the first disk body.
  • a sheet balance piece for example, the length of the sheet-like balance member 33 in the first direction may be 10111111, 15111111, 20111111. In the present embodiment, the length of the sheet-like balance member 33 in the first direction is 15111111. In other embodiments, the length of the sheet-like balance member 33 in the first direction may also be other lengths, which is not limited in the application.
  • the length of the sheet-like balance member 33 in the first direction is greater than or equal to the length of the columnar balance member 23 in the first direction.
  • the sheet-like balance member 33 may have a thickness of 1111111, 1.5_1 or 2111111. In the present embodiment, the sheet-like balance member 33 has a thickness of 1.5_1. In other embodiments, the thickness of the sheet-like balance member 33 may also be other thicknesses, which is not limited in the application.
  • the distance between the sheet-like balance members 33 is greater than 5111111 to increase heat dissipation efficiency.
  • the sheet-like balance member 33 is vertically disposed on the base 31. In other embodiments, the sheet-like balance member 33 may be disposed obliquely on the base plate 31.
  • the shape of the sheet-like balance member 33 may be a rectangle or a curved surface. It should be understood that when the shape of the sheet-like balance member 33 is a rectangle, the projection of the sheet-like balance member 33 on the base plate 31 is a straight line; when the shape of the sheet-like balance member 33 is a curved surface, the sheet-like balance member 33 is on the base plate.
  • the projection on 31 is an arc.
  • the shape of the sheet-like balance member 33 is a curved surface which protrudes in a direction opposite to the moving direction of the sheet-like balance member 33.
  • an end of the curved surface away from the drive motor may be tangent to the rotational direction of the sheet-like balance member 33.
  • a ring-shaped balance member 33 is provided on the base plate 31 centering on the center of rotation.
  • the number of the sheet-shaped balance members 33 in the one-piece sheet-shaped balance member 33 is 30, and is disposed in an annular region in which the inner diameter of the base plate 31 is a first preset value and the outer diameter is a second preset value. between.
  • the first preset value range may be The second preset value range may be 80 ⁇ 1(X)111111.
  • the first preset value may be 50111111, 60111111 or 70111111, and the second preset value may be 80_1, 90111111 or 100111111.
  • the first preset value is 70111111
  • the second preset is 100111111.
  • a plurality of sheet-shaped balance members 33 may be disposed on the base plate 31 centering on the center of rotation.
  • the sheet-like balance member 33 can be at least partially removed from the base plate 31 according to the dynamic balance requirement of the color wheel module 30, that is, when the base plate 31 is unbalanced, part of the sheet is removed by cutting the sheet-like balance member 33.
  • the balance member 33 is balanced to balance the base plate 31. It should be understood that the cut sheet-like balance member 33 may be a partial sheet-like balance member 33 for cutting one sheet-like balance member 33, or a complete sheet-like balance member 33 may be cut.
  • FIG. 4 is a schematic structural diagram of a balance member according to a fourth embodiment of the present application.
  • the balance member of the color wheel module 40 may be a combination of a column balance member and a sheet balance member.
  • the sheet balance member 432 is also used to increase the air flow rate around the sheet-like balance member 432 to further improve the heat dissipation efficiency of the color wheel module 30.
  • At least two balance members 43 are disposed on the base 41 around the center of rotation, at least one of the at least two balance members 43 is a column balance member 431, and at least one balance member 43 is The sheet-like balance member 43 2 is provided on the outer periphery of the columnar balance member 431.
  • the base 41, the light conversion layer 42, the drive motor 44, and the reflective layer 45 may be the same as the base 11, the light conversion layer 12, the drive motor 14, and the reflective layer 15 in the first embodiment.
  • the columnar balance member 431 may be the same as the columnar balance member 23 in the second embodiment, and the sheet-like balance member 432 may be the same as the sheet-like balance member 33 in the third embodiment, and will not be described herein.
  • two balance members are disposed on the base 41 with the center of rotation as a center.
  • One balance of the two balance members is a column balance member 431, and one balance member is a sheet balance.
  • the sheet-like balance member 432 is disposed on the periphery of the column-shaped balance member 431.
  • the sheet-like balance member 432 may be disposed on a side of the column-shaped balance member 431 away from the drive motor 44.
  • two balance members may be disposed on the base 41 centering on the center of rotation.
  • One balance of the two balance members is a column balance member 431, and one balance member is a piece.
  • the balance member 432, the sheet-like balance member 432 and the column-shaped balance member 431 may be disposed at intervals, or the column-shaped balance member may be disposed at the periphery of the sheet-like balance member.
  • At least three ring balance members may be disposed on the base plate 41 centering on the center of rotation, the at least three ring balance members including at least one ring of columnar balance members 431 and at least one ring-like balance.
  • the sheet-shaped balance member 432 is disposed on the outer periphery of the column-shaped balance member 431, or the column-shaped balance member 431 is disposed on the outer periphery of the sheet-like balance member 432, or the sheet-like balance member 432 and the column-shaped balance member 431 are spaced apart from each other.
  • a balance can be placed on the base 41 centering on the center of rotation.
  • the balance member of the color wheel module 40 by setting the balance member of the color wheel module 40 as a combination of the column balance member 431 and the sheet balance member 432, at least part of the column shape can be selected according to the dynamic balance requirement of the color wheel module 40.
  • the balance member 431 and/or the sheet-like balance member 432 are removed from the base plate 41 to meet the dynamic balance requirements of the color wheel module 40.
  • removing at least a portion of the columnar balance member 431 and/or the sheet-like balance member 432 from the base plate 41 may preferentially remove a portion of the columnar balance member 431, and preferentially remove a portion of the piece.
  • the balance member 432 or both the partial balance member 431 and the partial sheet balance member 432 are simultaneously removed.
  • FIG. 5 is a schematic structural diagram of a projection apparatus of the present application.
  • Projection device 50 color wheel module 51
  • the color wheel module 51 may be the color wheel module 51 in any of the above embodiments.
  • the color wheel module of the present application includes: a base plate, a light conversion layer and a plurality of balance members, wherein the light conversion layer covers one side surface of the base plate; The other side surface of the base plate remote from the light conversion layer is spaced apart from the center of rotation of the base plate, wherein the balance member can be at least partially removed from the base plate according to the dynamic balance requirement of the color wheel module, and the plurality of balance members are further It is used to increase the heat dissipation area of the color wheel module to improve the heat dissipation efficiency of the color wheel module.
  • the balance member can be at least partially removed from the base plate according to the dynamic balance requirement of the color wheel module, the movement of the color wheel module can be made by removing part of the balance member when the dynamic balance of the color wheel module is not satisfactory.
  • the balance meets the demand.
  • the plurality of balance members are disposed on the base plate, the base plate and the balance member can dissipate heat from the color wheel module, and the color wheel module is enlarged. ⁇ 0 2019/140781 ⁇ (:17(: ⁇ 2018/080884)
  • the heat dissipation area improves the heat dissipation efficiency of the color wheel module.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)

Abstract

La présente invention concerne un module de roue de couleur (10), comprenant une plaque de base (11), une couche de conversion de lumière (12), et une pluralité d'éléments d'équilibrage (13). La couche de conversion de lumière (12) recouvre une surface latérale de la plaque de base (11), et la pluralité d'éléments d'équilibrage (13) est disposée sur l'autre surface latérale de la plaque de base (11) à distance de la couche de conversion de lumière (12) et est espacée l'une de l'autre autour du centre de rotation de la plaque de base (11), les éléments d'équilibrage (13) pouvant être retirés, au moins partiellement, de la plaque de base (11) selon une exigence d'équilibre dynamique du module de roue de couleur (10), et la pluralité d'éléments d'équilibrage (13) est également utilisé pour augmenter la zone de dissipation de chaleur du module de roue de couleur (10) de façon à améliorer l'efficacité de dissipation de chaleur du module de roue de couleur (10). L'invention concerne également un dispositif de projection (50), comprenant le module de roue de couleur (10). Selon l'approche ci-dessus, lorsque l'équilibre dynamique du module de roue de couleur (10) n'est pas satisfaisant, certains éléments d'équilibrage (13) peuvent être retirés pour rendre l'équilibre dynamique du module de roue de couleur (10) satisfaisant, et la zone de dissipation de chaleur croissante du module de roue de couleur (10) peut améliorer l'efficacité de dissipation de chaleur du module de roue de couleur (10).
PCT/CN2018/080884 2018-01-17 2018-03-28 Module de roue de couleur et dispositif de projection WO2019140781A1 (fr)

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