WO2017114303A1 - 色轮模组、光源模组和投影系统 - Google Patents

色轮模组、光源模组和投影系统 Download PDF

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Publication number
WO2017114303A1
WO2017114303A1 PCT/CN2016/111687 CN2016111687W WO2017114303A1 WO 2017114303 A1 WO2017114303 A1 WO 2017114303A1 CN 2016111687 W CN2016111687 W CN 2016111687W WO 2017114303 A1 WO2017114303 A1 WO 2017114303A1
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WIPO (PCT)
Prior art keywords
module
light
layer
color wheel
filter
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.)
Ceased
Application number
PCT/CN2016/111687
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English (en)
French (fr)
Inventor
李乾
胡飞
许颜正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Publication of WO2017114303A1 publication Critical patent/WO2017114303A1/zh
Anticipated expiration legal-status Critical
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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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to the technical field of light sources, and more particularly to a color wheel module, a light source module and a projection system.
  • An existing light source module includes an excitation light source and a fluorescent color wheel on the optical path of the excitation light source, wherein the excitation light source is a single laser or a laser array, and the fluorescent color wheel comprises a round wheel substrate, and the fluorescent light coated on the substrate
  • the powder layer and the motor that drives the substrate to rotate.
  • the motor drives the color wheel to rotate along the central axis, so that the spot formed by the excitation light acts on the phosphor layer in a circular path to avoid long time due to high power laser.
  • the fluorescent color wheel comprises a plurality of light emitting modules such as a red color segment, a green color segment and a blue color segment
  • each of the light emitting modules needs to be configured with a corresponding filter to trim the excited fluorescent light through the filter.
  • the existing fluorescent color wheel has the filter disposed above the phosphor layer, the fluorescent color wheel requires a lot of clamping members to fix the filter, which results in a complicated structure of the fluorescent color wheel.
  • the phosphor layers of the existing fluorescent color wheel are directly coated on the substrate, resulting in poor heat dissipation effect of the fluorescent color wheel, thereby affecting the life of the light source module.
  • the present invention provides a color wheel module, a light source module and a projection system to solve the problem that the existing fluorescent color wheel has a complicated structure and a poor heat dissipation effect.
  • the present invention provides the following technical solutions:
  • a color wheel module comprising a color wheel and a driving device for driving the color wheel to rotate, the color wheel comprising a transparent substrate and a plurality of light emitting modules and a plurality of light emitting modules fixed on the surface of the transparent substrate Filter module
  • the plurality of light-emitting modules are spliced into an annular light-emitting layer;
  • the plurality of filter modules are spliced into an annular filter layer, and the filter layer is located inside or outside the light-emitting layer;
  • the light emitting module includes a first substrate layer in contact with the transparent substrate and at least one functional layer on a surface of the first substrate layer;
  • the filter module is disposed in one-to-one correspondence with the light-emitting module to trim a light beam emitted by the corresponding light-emitting module.
  • the filter module and the light emitting module are located on the same surface of the transparent substrate, and the light filtering module and the corresponding light emitting module are located in the same sector area centered on the center of rotation of the transparent substrate, or The filter module and its corresponding light-emitting module are located in different sector regions centered on the center of rotation of the transparent substrate.
  • the filter module and the light emitting module are respectively located on opposite surfaces of the transparent substrate, and the filter module and the corresponding light emitting module are located in the same sector area centered on the rotation center of the transparent substrate. Or, the filter module and its corresponding light emitting module are located in different sector regions centered on the center of rotation of the transparent substrate.
  • the filter module comprises a second substrate layer and a filter film layer on a surface of the second substrate layer, and the second substrate layer is a transparent substrate layer.
  • the first substrate layer is a metal or ceramic substrate layer; the at least one functional layer comprises a reflective layer or a light emitting functional layer, or the at least one functional layer comprises a surface layer of the first substrate layer. a reflective layer and a light-emitting functional layer, wherein the light-emitting functional layer is a phosphor layer.
  • the second substrate layer is a glass or sapphire substrate layer
  • the transparent substrate is a sapphire substrate.
  • the light emitting module and the filter module are adhesively fixed on the surface of the transparent substrate.
  • a light source module includes an excitation light source, a color wheel module, at least one first optical film, and at least one second optical film;
  • the excitation light source is for emitting excitation light
  • the color wheel module is the color wheel module according to any one of the preceding claims, wherein the light emitting module of the color wheel module is located on the optical path of the excitation light, and emits a corresponding color under the illumination of the excitation light. beam;
  • the first optical film is located between the excitation light source and the color wheel module for transmitting the excitation light and reflecting the light beam emitted by the light emitting module onto the second optical film;
  • the second optical film is configured to reflect the light beam onto a corresponding filter module, so that the filter module trims the light beam.
  • the light source module further includes a collecting lens, and the collecting lens is located on the optical path of the corresponding color wheel module for collecting the light beam trimmed by the filter module.
  • a projection system comprising the light source module of any of the above.
  • the color wheel module, the light source module and the projection system provided by the invention, the filter layer and the light-emitting layer are all located on the surface of the transparent substrate, and the filter layer is located on the inner side and the outer side of the light-emitting layer, so that the light can be illuminated through the optical film
  • the beam emitted by the module is reflected onto the corresponding filter module for trimming, thereby reducing the clamping component of the fixed filter and simplifying the structure of the color wheel module;
  • the light emitting module includes the first substrate layer and at least one functional layer located on the surface of the first substrate layer, and the functional layer of the light is not directly in contact with the transparent substrate, heat generated by the functional layer of the light may be first
  • the substrate layer is evenly dispersed, thereby improving the heat dissipation performance of the color wheel module, and avoiding the phenomenon that the color wheel module is broken due to heat dissipation concentration and uneven thermal expansion.
  • FIG. 1 is a schematic structural view of a transparent substrate according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a transparent substrate and a light emitting layer according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a transparent substrate, a light emitting layer, and a filter layer according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional structural view of a light emitting module according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another transparent substrate, a light emitting layer, and a filter layer according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of still another transparent substrate, a light emitting layer, and a filter layer according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a heat dissipation process of a light emitting module according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a light source module according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of another light source module according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of still another light source module according to another embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of still another light source module according to another embodiment of the present invention.
  • One embodiment of the present invention provides a color wheel module that includes a color wheel and a drive device that drives the color wheel to rotate.
  • the color wheel comprises a transparent substrate 10 and a plurality of light-emitting modules and a plurality of filter modules fixed on the surface of the transparent substrate 10, and the light-emitting modules are spliced into an annular light-emitting layer, and the filter modules are spliced into a ring-shaped filter. Light layer.
  • the light-emitting modules of different colors emit light beams of different colors under the illumination of the excitation light, and the light beams of different colors may be mixed into white light required for projection;
  • the filter module is arranged in one-to-one correspondence with the light-emitting module to trim Corresponding light beam emitted by the light emitting module.
  • the color wheel includes the light-emitting modules 110, 111, 112, and 113 as an example.
  • the color wheel further includes filter modules 120, 121, 122, and 123.
  • the filter module 120 is used to trim the light-emitting module 110.
  • the light beam the filter module 121 is used to trim the light beam emitted by the light emitting module 111
  • the filter module 122 is used to trim the light beam emitted by the light emitting module 112
  • the filter module 123 is used to trim the light beam emitted by the light emitting module 113.
  • FIG. 1 is a schematic structural view of a transparent substrate 10, and a schematic structural view of the transparent substrate 10 and the light-emitting modules 110, 111, 112, and 113 fixed on the surface thereof is as shown in FIG.
  • the transparent substrate 10 is fixed on the surface thereof.
  • a schematic structural view of the light emitting modules 110, 111, 112, and 113 and the filter modules 120, 121, 122, and 123 fixed to the surface thereof is shown in FIG.
  • the light-emitting module and the filter module in the present invention are not limited to four, and may be more than four or less than four, such as three, six, eight, etc., and those skilled in the art may set the light according to the needs of the emitted light.
  • the arc lengths of the different light-emitting modules in the present invention may be the same or different.
  • the arc length ratio between the inventive modules may be set according to the light-out requirement to adjust the color combination of the light.
  • the transparent substrate 10 is an annular transparent substrate.
  • the material of the transparent substrate 10 may be quartz, glass, sapphire, transparent aluminum nitride or other transparent and thermally conductive material.
  • the transparent substrate 10 is a sapphire substrate.
  • the light emitting modules 110, 111, 112, and 113 are separate modules that are fixed on the transparent substrate 10 by gluing or other means, and the spliced light emitting modules 110, 111, 112, and 113 form an annular shape. Light-emitting layer. When the color wheel rotates, the illumination path of the excitation light spot is located in the annular light-emitting layer.
  • each of the light emitting modules includes a first substrate layer and at least one functional layer on a surface of the first substrate layer, such as a first substrate layer, a reflective layer on a surface of the first substrate layer, and a light emitting functional layer on a surface of the reflective layer.
  • the structural layers may be designed according to actual needs.
  • the light emitting module may include a first substrate layer, a light emitting functional layer or a reflective layer on a surface of the first substrate layer.
  • the light emitting module reflects only the laser light without generating the excitation light, so that the laser light such as blue light and the excitation light such as yellow light can be combined into white light.
  • the light emitting module may include a first substrate layer 1100, a reflective layer 1101 sequentially located on the surface of the first substrate layer 1100, and a light emitting function layer 1102.
  • the reflective layer 1101 may be a metal reflective layer
  • the light-emitting functional layer 1102 may be a phosphor layer.
  • the first substrate layer 1100 may be a metal or ceramic material, preferably aluminum nitride, and of course other materials, as long as the thermal expansion coefficient thereof. It is matched with the transparent substrate 10 and has high thermal conductivity.
  • the light-emitting functional layer 1102 can use a conventional silica gel material as a carrier for the phosphor, and the reflective layer 1101 can use a conventional silica gel material as a carrier for scattering/reflecting particles.
  • An inorganic material may also be used as the carrier bonding material; when the first substrate layer 1100 is made of a metal material, the light-emitting functional layer 1102 and the reflective layer 1101 can only use a silica gel material as a carrier bonding material.
  • the scattering/reflecting particles comprise a combination of one or more of materials such as alumina, titania, barium sulfate, cerium oxide, zirconium oxide, zinc oxide, and the like.
  • the filter modules 120, 121, 122, and 123 are also separate modules, and are also fixed on the transparent substrate 10 by gluing or other means, and the spliced filter modules 120, 121, 122, and 123 constitute a circle.
  • the filter module includes a second substrate layer and a filter film layer on the surface of the second substrate layer, and the second substrate layer is a transparent substrate layer.
  • the second substrate layer is a glass or sapphire substrate layer
  • the filter layer is It is a color correction film layer plated on the surface of the second substrate layer.
  • the filter module is disposed in one-to-one correspondence with the light-emitting module, and the light beam emitted from the light-emitting module is transmitted to the corresponding filter module through the optical path, so that the filter module trims the light beam emitted by the corresponding light-emitting module.
  • the trimming in this embodiment is intended to adjust or correct the color coordinates of the beam.
  • the filter module can trim the color coordinates of the beam by retaining most of the spectral range of the corresponding beam and filtering a portion of the spectrum of the beam. Of course, in other embodiments, if the spectrum of the beam is in the filter module Within the reserved range, the beam passes completely through the filter module.
  • the filter module and the corresponding light-emitting module are located on the same surface of the transparent substrate 10, as shown in FIG. 3, the filter module 120 and the corresponding light-emitting module 110 are located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10 and The filter module 121 and the corresponding light-emitting module 111 are located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10 and are located on the same surface of the color wheel surface, and the filter module 122 and the corresponding light-emitting module are located on the same surface of the transparent substrate 10 .
  • the 112 is located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10 and is located on the same surface of the transparent substrate 10.
  • the filter module 123 and the corresponding light-emitting module 113 are located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10 and located at The same surface of the transparent substrate 10.
  • the filter module and its corresponding light-emitting module may be located in different sector regions centered on the center of rotation of the transparent substrate 10, preferably, the filter module and the corresponding light-emitting module. They are respectively located in two sector-shaped regions which are symmetric with respect to the center of rotation of the transparent substrate 10. As shown in FIG. 5, the filter module and its corresponding light-emitting module are disposed on the same surface of the transparent substrate 10, and the filter module 120 and the corresponding light-emitting module 110 are respectively located in two sectors that are symmetric with respect to the center of rotation of the transparent substrate 10.
  • the filter module 121 and the corresponding light-emitting module 111 are respectively located in two sector-shaped regions that are symmetric with respect to the center of rotation of the transparent substrate 10.
  • the filter module 122 and the corresponding light-emitting module 112 are respectively located at the center of rotation of the transparent substrate 10.
  • the filter module 123 and the corresponding light-emitting module 113 are respectively located in two sector-shaped regions that are symmetric with respect to the center of rotation of the transparent substrate 10.
  • the light-emitting module corresponding to the light-emitting module at the position of 110 may also be at the position of 122.
  • the filter module and its corresponding light-emitting module are respectively located on two opposite surfaces of the transparent substrate 10 , and the filter module and its corresponding light-emitting module are located at a center of the center of rotation of the transparent substrate. In the same sector region, or the light-emitting module and its corresponding light-emitting module are located in different sector regions centered on the rotation center of the transparent substrate.
  • the filter layer formed by the plurality of filter modules may be located inside the light-emitting layer formed by the plurality of light-emitting modules, as shown in FIG. 3, that is, the filter modules 120, 121, 122, and 123 are located in the light-emitting modules 110 and 111.
  • the inner side of the 112 and 113; in other embodiments, the filter layer may also be located outside the light emitting layer, as shown in FIG. 6, that is, the filter modules 120, 121, 122, and 123 are located in the light emitting modules 110, 111, and 112.
  • the outer side of 113 is described in FIG. 3, that is, the filter modules 120, 121, 122, and 123 are located in the light-emitting modules 110 and 111.
  • each of the light-emitting modules is first prepared by using a substrate such as aluminum nitride, that is, the first substrate layer 1100, and then spliced onto the sapphire substrate, that is, the transparent substrate 10. Since sapphire has a thermal conductivity of only 25 W/MK -35W/MK, if the luminescent layer is directly applied to the sapphire substrate, then when the color wheel module is applied to a high-power laser light source, the heat at the spot is not effectively diffused, and there is a significant heat concentration effect.
  • the temperature at the spot rises rapidly, resulting in a decrease in the light efficiency of the color wheel module; if the first substrate layer 1100 is a substrate having a lower thermal conductivity such as alumina, a heat accumulation region is generated, and the temperature thereof is significantly higher than other The area will not only reduce the light effect of the color wheel module, but also affect the bonding between the light emitting module and the transparent substrate, causing thermal fatigue of the transparent substrate and affecting the reliability of the color wheel module.
  • a high thermal conductivity material such as aluminum nitride is used as the first substrate layer 1100.
  • the heat generated by the spot in the light emitting function layer 1102 passes through the aluminum nitride substrate. That is, the first substrate layer 1100 is effectively diffused, as shown by the dotted arrow in FIG. 7 as the direction of heat diffusion. After effective diffusion, the boundary between the first substrate layer 1100 and the sapphire transparent substrate 10 is in a uniform temperature state, that is, It is said that the heat on the transparent substrate 10 is uniformly distributed without significant heat accumulation.
  • the filter layer and the light-emitting layer are both located on the surface of the transparent substrate, and the filter layer is located on the inner side and the outer side of the light-emitting layer, so that the light beam emitted by the light-emitting module can be reflected to the corresponding through the optical film.
  • the filter module is trimmed to reduce the clamping component of the fixed filter, simplify the structure of the color wheel module, reduce the volume and weight of the color wheel module, and the color wheel module is not filtered by the upper layer.
  • the size of the piece is limited and its size can be made larger.
  • the light emitting module includes the first substrate layer and at least one functional layer and the light emitting function layer on the surface of the first substrate layer, that is, the light emitting function layer is not directly in contact with the transparent substrate, heat generated by the light emitting function layer can be
  • the first substrate layer is uniformly dispersed, thereby improving the heat dissipation performance of the color wheel module, avoiding the phenomenon that the color wheel module is broken due to uneven heat dissipation and uneven thermal expansion, and the luminous efficiency of the light emitting layer can be improved.
  • FIG. 8 Another embodiment of the present invention provides a light source module, as shown in FIG. 8, including an excitation light source 1, a color wheel module 2, at least one first optical film 3, at least one second optical film 4, and The lens 5 is collected.
  • the excitation light source 1 is used to emit excitation light.
  • the excitation light source 1 is a laser array composed of a single laser or a plurality of lasers, such as a semiconductor laser, and the excitation light emitted by the excitation laser is a blue laser or an ultraviolet laser.
  • the blue laser is taken as an example for explanation.
  • the color wheel module 2 is a color wheel module provided by any one of the above embodiments.
  • the light-emitting module of the color wheel module is sequentially located on the optical path of the excitation light, and emits a light beam of a corresponding color under the illumination of the excitation light.
  • the light emitting module of the color wheel module may include a red light emitting module, a green light emitting module and a blue light emitting module. Under the driving action of the driving device, the red light emitting module, the green light emitting module and the blue light emitting module are sequentially located in the excitation light. On the optical path, and under the illumination of the excitation light, the red light emitting module emits red light, the green light emitting module emits green light, and the blue light emitting module emits blue light.
  • the first optical film 3 is located between the excitation light source 1 and the color wheel module 2 for transmitting the excitation light and reflecting the light beam emitted from the light emitting module onto the second optical film 4.
  • the first optical film 3 is a film that transmits blue light to reflect other light.
  • the second optical film 4 is configured to reflect the light beam emitted from the light emitting module to the corresponding filter module, so that the filter module is trimmed by the laser.
  • the red light emitting module may include a first substrate layer and a reflective layer and a red phosphor layer sequentially located on the surface of the first substrate layer
  • the green light emitting module may include a first substrate layer and The reflective layer and the green phosphor layer are sequentially located on the surface of the first substrate layer
  • the blue light emitting module may include a first substrate layer and a reflective layer on the surface of the first substrate layer.
  • the red phosphor absorbs the excitation light and then emits red light
  • the green phosphor absorbs the excitation light and the excellent green light
  • the reflective layer does not absorb the excitation light but reflects the excitation light, that is, the blue light, onto the first optical film 3 to Light and green light combine to white light.
  • the blue light emitting module may include only the reflective layer, and may also include the first substrate layer and the reflective layer and the blue fluorescent layer layer sequentially located on the surface of the first substrate layer, and the present invention is not limited thereto.
  • the positions of the first optical film 3 and the second optical film 4 are fixed.
  • the color wheel module when a light-emitting module rotates to the optical path of the excitation light, the light-emitting module is located.
  • the second optical film 4 is also located below the corresponding filter module, so that the filter module trims the light beam emitted by the corresponding light module.
  • a first optical film 3 may be fixed on each of the light-emitting modules, and a second optical film 4 is fixed on each of the filter modules, and the color segment module is rotated.
  • the first optical film 3 will rotate with the corresponding light-emitting module, and the second optical film 4 will rotate with the corresponding filter module.
  • the collecting lens 5 is located on the back side of the color wheel module having one side of the light emitting module, and the position of the collecting lens 5 corresponds to the position of the filter module, so that the collecting lens 5 collects the light beam passing through the filtering light module and the transparent substrate.
  • the light beam collected by the collecting lens 5 is transmitted to a subsequent modulating device for projection of the image.
  • the light-emitting module and the filter module are located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10, so that the radius of the color wheel module is small.
  • the filter module and its corresponding light-emitting module are located in different sector regions centered on the center of rotation of the transparent substrate 10, as shown in FIG.
  • the light emitting module and the filter module are located on the same surface of the transparent substrate.
  • the filter module and the light emitting module may be respectively
  • the filter module and the light-emitting module can be located in the same sector-shaped area centered on the center of rotation of the transparent substrate 10. As shown in FIG. 10, the filter module and its corresponding light-emitting module are located on the transparent substrate. 10 The center of rotation is in the different sector of the center of the circle, as shown in Figure 11.
  • the filter layer and the luminescent layer are both located on the surface of the transparent substrate, and the filter layer is located on the inner side and the outer side of the illuminating layer, and the light emitted by the illuminating module is reflected by the optical film to the corresponding
  • the filter module is trimmed to reduce the clamping component of the fixed filter, simplify the structure of the color wheel module, reduce the volume and weight of the color wheel module, and the color wheel module is not filtered by the upper layer.
  • the size of the light sheet is limited and its size can be made larger.
  • the light emitting module includes a first substrate layer and at least one functional layer located on the surface of the first substrate layer, that is, the light emitting function layer is not directly in contact with the transparent substrate, heat generated by the light emitting function layer may be used by the first substrate layer Evenly dispersed, thereby improving the heat dissipation performance of the color wheel module, avoiding the phenomenon that the color wheel module is broken due to heat dissipation concentration and uneven thermal expansion, and the luminous efficiency of the light emitting layer can be improved.
  • a further embodiment of the present invention provides a projection system comprising the light source module provided by any of the above embodiments.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Astronomy & Astrophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
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Abstract

一种色轮模组、光源模组和投影系统，所述色轮模组包括色轮和驱动所述色轮转动的驱动装置，所述色轮包括透明基板（10）以及固定在所述透明基板（10）表面的多个发光模块（110，111，112，113）和多个滤光模块（120，121，122，123）；所述多个发光模块（110，111，112，113）拼接成圆环状的发光层；所述多个滤光模块（120，121，122，123）拼接成圆环状的滤光层，所述滤光层位于所述发光层的内侧或外侧；所述发光模块（110，111，112，113）包括与所述透明基板（10）接触的第一基板层（1100）以及位于所述第一基板层（1100）表面的至少一个功能层（1102）；所述滤光模块（120，121，122，123）与所述发光模块（110，111，112，113）一一对应设置，以修整对应的所述发光模块（110，111，112，113）出射的光束，从而可以减少固定滤光片的夹持部件，简化了色轮模组的结构，提高了色轮模组的散热性能。

Description

色轮模组、光源模组和投影系统 技术领域
本发明涉及光源技术领域，更具体地说，涉及一种色轮模组、光源模组和投影系统。
 背景技术
现有的一种光源模组包括激发光源和位于该激发光源光路上的荧光色轮，其中，激发光源为单个激光器或激光器阵列，荧光色轮包括圆轮状基板、涂覆在基板上的荧光粉层以及驱动基板转动的马达。在激发光源发出的激光激发荧光粉层产生荧光的过程中，马达驱动色轮沿中心轴转动，使得激发光形成的光斑按圆形路径作用于荧光粉层，以避免因大功率激光的长时间照射而导致的荧光粉热淬灭的问题。
 技术问题
当荧光色轮包括多个发光模块如红光色段、绿光色段和蓝光色段时，每一个发光模块都需要配置相应的滤光片，以通过滤光片将被激发出来的荧光修整为需要的颜色。由于现有的荧光色轮都是将滤光片设置在在荧光粉层的上方，因此，荧光色轮需要很多的夹持部件来固定滤光片，这样就会导致荧光色轮的结构较复杂；并且，现有的荧光色轮的荧光粉层都是直接涂覆在基板上，导致荧光色轮的散热效果较差，从而影响光源模组的寿命。
 技术解决方案
有鉴于此，本发明提供了一种色轮模组、光源模组和投影系统，以解决现有的荧光色轮结构复杂以及散热效果较差的问题。
为实现上述目的，本发明提供如下技术方案：
一种色轮模组，所述色轮模组包括色轮和驱动所述色轮转动的驱动装置，所述色轮包括透明基板以及固定在所述透明基板表面的多个发光模块和多个滤光模块；
所述多个发光模块拼接成圆环状的发光层；所述多个滤光模块拼接成圆环状的滤光层，所述滤光层位于所述发光层的内侧或外侧；
所述发光模块包括与所述透明基板接触的第一基板层以及位于所述第一基板层表面的至少一个功能层；
所述滤光模块与所述发光模块一一对应设置，以修整对应的所述发光模块出射的光束。
优选的，所述滤光模块和发光模块位于所述透明基板的同一表面上，且所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的同一扇形区域内，或者，所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的不同扇形区域内。
优选的，所述滤光模块和发光模块分别位于所述透明基板相对的两个表面上，且所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的同一扇形区域内，或者，所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的不同扇形区域内。
优选的，所述滤光模块包括第二基板层和位于所述第二基板层表面的滤光膜层，所述第二基板层为透明基板层。
优选的，所述第一基板层为金属或陶瓷基板层；所述至少一个功能层包括反射层或发光功能层，或者，所述至少一个功能层包括依次设置于所述第一基板层表面的反射层和发光功能层，所述发光功能层为荧光粉层。
优选的，所述第二基板层为玻璃或蓝宝石基板层；
所述透明基板为蓝宝石基板。
优选的，所述发光模块和滤光模块以胶粘的方式固定在所述透明基板的表面。
一种光源模组，包括激发光源、色轮模组、至少一个第一光学膜片和至少一个第二光学膜片；
所述激发光源用于发射激发光；
所述色轮模组为如上任一项所述的色轮模组，所述色轮模组的发光模块位于所述激发光的光路上，且在所述激发光的照射下出射对应颜色的光束；
所述第一光学膜片位于所述激发光源和色轮模组之间，用于透射所述激发光，并将所述发光模块出射的光束反射至所述第二光学膜片上；
所述第二光学膜片用于将所述光束反射至对应的滤光模块上，以使所述滤光模块对所述光束进行修整。
优选的，所述光源模组还包括收集透镜，所述收集透镜位于对应的所述色轮模组的光路上，用于收集经所述滤光模块修整的光束。
一种投影系统，包括如上任一项所述的光源模组。
 有益效果
与现有技术相比，本发明所提供的技术方案具有以下优点：
本发明所提供的色轮模组、光源模组和投影系统，滤光层和发光层均位于透明基板的表面，且滤光层位于发光层的内侧和外侧，从而可以通过光学膜片将发光模块出射的光束反射至对应的滤光模块上进行修整，进而可以减少固定滤光片的夹持部件，简化色轮模组的结构；
并且，由于发光模块包括第一基板层以及位于所述第一基板层表面的至少一个功能层，且发光的功能层不直接与透明基板接触，因此，发光的功能层产生的热量可以被第一基板层均匀分散出去，从而提高了色轮模组的散热性能，避免了由于散热集中及热膨胀不均匀而导致的色轮模组炸裂的现象。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本发明的一个实施例提供的透明基板的结构示意图；
图2为本发明的一个实施例提供的透明基板以及发光层的结构示意图；
图3为本发明的一个实施例提供的透明基板、发光层以及滤光层的结构示意图；
图4为本发明的一个实施例提供的发光模块的剖面结构示意图；
图5为本发明的一个实施例提供的另一种透明基板、发光层以及滤光层的结构示意图；
图6为本发明的一个实施例提供的又一种透明基板、发光层以及滤光层的结构示意图；
图7为本发明的一个实施例提供的发光模块的散热过程示意图；
图8为本发明的另一实施例提供的一种光源模组的结构示意图；
图9为本发明的另一实施例提供的另一种光源模组的结构示意图；
图10为本发明的另一实施例提供的又一种光源模组的结构示意图；
图11为本发明的另一实施例提供的又一种光源模组的结构示意图。
 本发明的最佳实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的一个实施例提供了一种色轮模组，该色轮模组包括色轮和驱动色轮转动的驱动装置。其中，色轮包括透明基板10以及固定在透明基板10表面的多个发光模块和多个滤光模块，这些发光模块拼接成圆环状的发光层，这些滤光模块拼接成圆环状的滤光层。其中，不同颜色的发光模块在激发光的照射下出射不同颜色的光束，这些不同颜色的光束可混合成投影所需的白光；所述滤光模块与所述发光模块一一对应设置，以修整对应的所述发光模块出射的光束。
下面以色轮包括发光模块110、111、112和113为例进行说明，相应的，该色轮还包括滤光模块120、121、122和123，滤光模块120用于修整发光模块110出射的光束，滤光模块121用于修整发光模块111出射的光束，滤光模块122用于修整发光模块112出射的光束，滤光模块123用于修整发光模块113出射的光束。其中，透明基板10的结构示意图如图1所示，透明基板10以及固定在其表面的发光模块110、111、112和113的结构示意图如图2所示，透明基板10、固定在其表面的发光模块110、111、112和113以及固定在其表面的滤光模块120、121、122和123的结构示意图如图3所示。本发明中的发光模块和滤光模块并不限于四个，也可以多于4个或者少于4各，如三个、六个、八个等，本领域技术人员可以根据出射光需要设置发光模块的数目。同时，本发明中不同发光模块的弧长可以相同也可以不相同，例如，可以根据出光要求，设置各发明模块之间的弧长比例进而调整出光的颜色组合。
参考图1，透明基板10为圆环状的透明基板。并且，作为色轮的载体和基体，透明基板10的材料可以为石英、玻璃、蓝宝石、透明氮化铝或其他透明的导热良好的材料。优选的，透明基板10为蓝宝石基板。
参考图2，发光模块110、111、112和113为单独的模块，其通过胶粘或其他方式固定在透明基板10上，且拼接后的发光模块110、111、112和113构成圆环状的发光层。当色轮转动时，激发光光斑的照射路径位于该圆环状发光层内。
并且，每一个发光模块包括第一基板层以及位于第一基板层表面的至少一个功能层，如包括第一基板层、位于第一基板层表面的反射层和位于反射层表面的发光功能层，当然，可以根据实际需求设计这几个结构层，在一个实施例中，发光模块可以包括第一基板层、位于第一基板层表面的发光功能层或反射层。当发光模块包括第一基板层和位于第一基板层表面的反射层时，该发光模块仅反射受激光而不产生激发光，这样就可以使受激光如蓝光与激发光如黄光合成白光。
如图4所示，发光模块可以包括第一基板层1100、依次位于第一基板层1100表面的反射层1101和发光功能层1102。其中，反射层1101可以为金属反射层，发光功能层1102可以为荧光粉层，第一基板层1100可以为金属或陶瓷材料，优选为氮化铝，当然也可以为其他材料，只要其热膨胀系数与透明基板10匹配、热导率高即可。当第一基板层1100采用陶瓷材料如氮化铝或蓝宝石时，发光功能层1102可以采用传统的硅胶材料作为荧光粉的载体，反射层1101可以采用传统的硅胶材料作为散射/反射颗粒的载体，也可采用无机材料作为载体粘接材料；当第一基板层1100采用金属材料时，发光功能层1102和反射层1101只能使用硅胶材料作为载体粘接材料。本实施例中，散射/反射颗粒包括氧化铝、氧化钛、硫酸钡、氧化钇、氧化锆、氧化锌等材料中的一种或多种的组合。
参考图3，滤光模块120、121、122和123也为单独的模块，同样通过胶粘或其他方式固定在透明基板10上，且拼接后的滤光模块120、121、122和123构成圆环状的滤光层。其中，滤光模块包括第二基板层和位于第二基板层表面的滤光膜层，第二基板层为透明基板层，优选的，第二基板层为玻璃或蓝宝石基板层，滤光膜层为镀在第二基板层表面的修色膜层。
本实施例中，滤光模块与发光模块一一对应设置，并通过光路将发光模块出射的光束传输至对应的滤光模块上，以使该滤光模块修整对应的发光模块出射的光束。本实施例中的修整为调整或修正光束的色坐标之意。滤光模块可以通过保留对应光束中的大部分光谱范围的光、少量过滤掉部分光谱的光，来修整该光束的色坐标，当然，在其他实施例中，若光束的光谱都在滤光模块的保留范围之内，则该光束完全通过该滤光模块。
具体地，滤光模块与其对应的发光模块位于透明基板10的同一表面，如图3所示，滤光模块120与对应的发光模块110位于以透明基板10旋转中心为圆心的同一扇形区域内且位于透明基板10的同一表面，滤光模块121与对应的发光模块111位于以透明基板10旋转中心为圆心的同一扇形区域内且位于色轮表面的同一表面，滤光模块122与对应的发光模块112位于以透明基板10旋转中心为圆心的同一扇形区域内且位于透明基板10的同一表面，滤光模块123与对应的发光模块113位于以透明基板10旋转中心为圆心的同一扇形区域内且位于透明基板10的同一表面。
当然，本发明并不仅限于此，在其他实施例中，滤光模块与其对应的发光模块可以位于以透明基板10旋转中心为圆心的不同扇形区域内，优选的，滤光模块与对应的发光模块分别位于相对透明基板10旋转中心呈中心对称的两个扇形区域内。如图5所示，滤光模块与其对应的发光模块设置在透明基板10的同一表面，并且，滤光模块120与对应的发光模块110分别位于相对透明基板10旋转中心呈中心对称的两个扇形区域内，滤光模块121与对应的发光模块111分别位于相对透明基板10旋转中心呈中心对称的两个扇形区域内，滤光模块122与对应的发光模块112分别位于相对透明基板10旋转中心呈中心对称的两个扇形区域内，滤光模块123与对应的发光模块113分别位于相对透明基板10旋转中心呈中心对称的两个扇形区域内。当然，当滤光模块与与其对应的发光模块不在同一扇形区域时，不中心对称也可以，例如，参考图5，110位置处的发光模块对应的发光模块在122位置处也可以。或者，参考图10和图11，滤光模块与其对应的发光模块分别位于透明基板10的两个相对的表面上，且滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的同一扇形区域内，或者，所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的不同扇形区域内。
此外，多个滤光模块拼接成的滤光层可以位于多个发光模块拼接成的发光层的内侧，如图3所示，即滤光模块120、121、122和123位于发光模块110、111、112和113的内侧；在其他实施例中，滤光层也可以位于发光层的外侧，如图6所示，即滤光模块120、121、122和123位于发光模块110、111、112和113的外侧。
本实施例中，各发光模块先采用氮化铝等基板即第一基板层1100制备，然后再拼接到蓝宝石基板即透明基板10之上。由于蓝宝石的热导率只有25 W/MK -35W/MK，若直接在蓝宝石基板上刷涂发光层，那么，该色轮模组应用于大功率激光光源时，光斑处的热量得不到有效扩散，会有很显著的热量集中效应，且光斑处的温度上升很快，导致色轮模组的光效下降；若第一基板层1100为热导率较低的基板如氧化铝等，会产生热量聚集区，其温度明显高于其他区域，这样不仅会降低色轮模组的光效，还会影响发光模块与透明基板之间的粘接，引起透明基板的热疲劳，影响色轮模组的可靠性。
基于此，本实施例中采用氮化铝等高热导率材料作为第一基板层1100，当激发光照射到发光功能层1102上时，光斑在发光功能层1102中产生的热量通过氮化铝基板即第一基板层1100得到了有效扩散，如图7中虚线箭头所示为热量扩散的方向，经过有效的扩散后第一基板层1100与蓝宝石透明基板10的边界处于一个均温状态，也就是说，透明基板10上的热量均匀分布，没有显著的热量聚集的现象。
本实施例提供的色轮模组，滤光层和发光层均位于透明基板的表面，且滤光层位于发光层的内侧和外侧，从而可以通过光学膜片将发光模块发射的光束反射至对应的滤光模块上进行修整，进而可以减少固定滤光片的夹持部件，简化色轮模组的结构，减小色轮模组的体积和重量，且色轮模组不受上方的滤光片的尺寸限制，其尺寸可以做得更大。
并且，由于发光模块包括第一基板层以及位于所述第一基板层表面的至少一个功能层和发光功能层，即发光功能层不是直接与透明基板接触，因此，发光功能层产生的热量可以被第一基板层均匀分散出去，从而提高了色轮模组的散热性能，避免了由于散热集中及热膨胀不均匀而导致的色轮模组炸裂的现象，且可以提高发光层的发光效率。
本发明的另一实施例提供了一种光源模组，如图8所示，包括激发光源1、色轮模组2、至少一个第一光学膜片3、至少一个第二光学膜片4和收集透镜5。
其中，激发光源1用于发射激发光，优选的，激发光源1为单个激光器或多个激光器构成的激光器阵列，例如半导体激光器，其发射的激发光为蓝激光或紫外激光，本实施例中以蓝激光为例进行说明。
色轮模组2为如上任一实施例提供的色轮模组，该色轮模组的发光模块依次位于激发光的光路上，且在激发光的照射下出射相应颜色的光束。如该色轮模组的发光模块可以包括红光发光模块、绿光发光模块和蓝光发光模块，在驱动装置的驱动作用下，红光发光模块、绿光发光模块和蓝光发光模块依次位于激发光的光路上，且在激发光的照射下，红光发光模块发射红光、绿光发光模块发射绿光、蓝光发光模块发射蓝光。
第一光学膜片3位于激发光源1和色轮模组2之间，用于透射激发光，并将发光模块出射的光束反射至第二光学膜片4上。具体地，第一光学膜片3为透射蓝激光反射其他光的膜片。第二光学膜片4用于将发光模块出射的光束反射至对应的滤光模块上，以使滤光模块对受激光进行修整。
当激发光源1发射的激发光为蓝光时，红光发光模块可以包括第一基板层以及依次位于第一基板层表面的反射层和红色荧光粉层，绿光发光模块可以包括第一基板层以及依次位于第一基板层表面的反射层和绿色荧光粉层，蓝光发光模块可以包括第一基板层和位于第一基板层表面的反射层。其中，红色荧光粉吸收激发光后出射红光，绿色荧光粉吸收激发光后出色绿光，反射层不吸收激发光而是将激发光即蓝光反射至第一光学膜片3上，以与红光和绿光合成白光。当然，在其他实施例中，蓝光发光模块可以仅包括反射层，也可以包括第一基板层以及依次位于第一基板层表面的反射层和蓝色荧光分层，本发明并不仅限于此。
本实施例中，第一光学膜片3和第二光学膜片4的位置固定，在色轮模组转动的过程中，当一发光模块转动到激发光的光路上时，即该发光模块位于第一光学膜片3的下方时，第二光学膜片4也位于其对应的滤光模块的下方，以使该滤光模块修整对应发光模块发射的光束。
当然，在其他实施例中，也可以在每一发光模块上固定一第一光学膜片3，在每一滤光模块上固定一第二光学膜片4，且色段模组转动的过程中，第一光学膜片3会随对应的发光模块转动，第二光学膜片4会随对应的滤光模块转动。
本实施例中，收集透镜5位于色轮模组具有发光模块一面的背面，且收集透镜5的位置与滤光模块的位置对应，以便收集透镜5收集透过滤光模块以及透明基板的光束。收集透镜5收集的光束会传输至后续的调制装置中，以进行图像的投影。
图8所示的光源模组中，发光模块和滤光模块位于以透明基板10旋转中心为圆心的同一扇形区域内，可以使得色轮模组的半径尺寸较小。在其他实施例中，当色轮模组的半径尺寸较大时，滤光模块与其对应的发光模块位于以透明基板10旋转中心为圆心的不同扇形区域内，如图9所示。
在图8和图9所示的光源模组中，发光模块和滤光模块位于透明基板的同一表面，但是，本发明并不仅限于此，在其他实施例中，滤光模块和发光模块可以分别位于透明基板的两个表面，同样，滤光模块和发光模块可以位于以透明基板10旋转中心为圆心的同一扇形区域内，如图10所示，滤光模块与其对应的发光模块位于以透明基板10旋转中心为圆心的不同扇形区域内，如图11所示。
本实施例提供的光学模组，滤光层和发光层均位于透明基板的表面，且滤光层位于发光层的内侧和外侧，并可通过光学膜片将发光模块发射的光线反射至对应的滤光模块上进行修整，从而可以减少固定滤光片的夹持部件，简化了色轮模组的结构，减小了色轮模组的体积和重量，且色轮模组不受上方的滤光片的尺寸限制，其尺寸可以做得更大。
并且，由于发光模块包括第一基板层以及位于所述第一基板层表面的至少一个功能层，即发光功能层不是直接与透明基板接触，因此，发光功能层产生的热量可以被第一基板层均匀分散出去，从而提高了色轮模组的散热性能，避免了由于散热集中及热膨胀不均匀而导致的色轮模组炸裂的现象，且可以提高发光层的发光效率。
本发明的又一实施例提供了一种投影系统，包括如上任一实施例提供的光源模组。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。 对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

1、一种色轮模组，所述色轮模组包括色轮和驱动所述色轮转动的驱动装置，其特征在于，所述色轮包括透明基板以及固定在所述透明基板表面的多个发光模块和多个滤光模块；
所述多个发光模块拼接成圆环状的发光层；所述多个滤光模块拼接成圆环状的滤光层，所述滤光层位于所述发光层的内侧或外侧；
所述发光模块包括与所述透明基板接触的第一基板层以及位于所述第一基板层表面的至少一个功能层；
所述滤光模块与所述发光模块一一对应设置，以修整对应的所述发光模块出射的光束。
2、根据权利要求1所述的色轮模组，其特征在于，所述滤光模块和发光模块位于所述透明基板的同一表面，且所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的同一扇形区域内，或者，所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的不同扇形区域内。
3、根据权利要求1所述的色轮模组，其特征在于，所述滤光模块和发光模块分别位于所述透明基板相对的两个表面，且所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的同一扇形区域内，或者，所述滤光模块与其对应的发光模块位于以所述透明基板旋转中心为圆心的不同扇形区域内。
4、根据权利要求2或3所述的色轮模组，其特征在于，所述滤光模块包括第二基板层和位于所述第二基板层表面的滤光膜层，所述第二基板层为透明基板层。
5、根据权利要求4所述的色轮模组，其特征在于，所述第一基板层为金属或陶瓷基板层；所述至少一个功能层包括反射层或发光功能层，或者，所述至少一个功能层包括依次设置于所述第一基板层表面的反射层和发光功能层，所述发光功能层为荧光粉层。
6、根据权利要求5所述的色轮模组，其特征在于，所述第二基板层为玻璃或蓝宝石基板层；
所述透明基板为蓝宝石基板。
7、根据权利要求1所述的色轮模组，其特征在于，所述发光模块和滤光模块以胶粘的方式固定在所述透明基板的表面。
8、一种光源模组，其特征在于，包括激发光源、色轮模组、至少一个第一光学膜片和至少一个第二光学膜片；
所述激发光源用于发射激发光；
所述色轮模组为权利要求1~7任一项所述的色轮模组，所述色轮模组的发光模块位于所述激发光的光路上，且在所述激发光的照射下出射对应颜色的光束；
所述第一光学膜片位于所述激发光源和色轮模组之间，用于透射所述激发光，并将所述发光模块出射的光束反射至所述第二光学膜片上；
所述第二光学膜片用于将所述光束反射至对应的滤光模块上，以使所述滤光模块对所述光束进行修整。
9、根据权利要求8所述的光源模组，其特征在于，所述光源模组还包括收集透镜，所述收集透镜位于对应的所述色轮模组的光路上，用于收集经所述滤光模块修整的光束。
10、一种投影系统，其特征在于，包括权利要求8~9任一项所述的光源模组。
PCT/CN2016/111687 2015-12-31 2016-12-23 色轮模组、光源模组和投影系统 Ceased WO2017114303A1 (zh)

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