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WO2018145393A1 - Appareil à cercle chromatique, système de sources lumineuses et dispositif de projection - Google Patents

Appareil à cercle chromatique, système de sources lumineuses et dispositif de projection Download PDF

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Publication number
WO2018145393A1
WO2018145393A1 PCT/CN2017/090274 CN2017090274W WO2018145393A1 WO 2018145393 A1 WO2018145393 A1 WO 2018145393A1 CN 2017090274 W CN2017090274 W CN 2017090274W WO 2018145393 A1 WO2018145393 A1 WO 2018145393A1
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WO
WIPO (PCT)
Prior art keywords
substrate
reflector
light
conversion element
wavelength conversion
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/CN2017/090274
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English (en)
Chinese (zh)
Inventor
戴达炎
杜鹏
李屹
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
Original Assignee
Appotronics Corp Ltd
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 Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2018145393A1 publication Critical patent/WO2018145393A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/48—Laser speckle optics
    • 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 utility model relates to the technical field of laser display, in particular to a color wheel device, a light source system and a projection device.
  • the projection equipment mainly uses a pure laser light source and a laser phosphor light source, and for the sake of cost, the pure laser light source and the laser phosphor light source basically adopt a blue laser with low cost and good photoelectric conversion efficiency as the excitation light.
  • the color wheel is irradiated on the color wheel by the blue laser during the rotation of the motor, and the excitation color wheel generates laser light of three primary colors, thereby generating mixed light having different timings.
  • the existing color wheel obtains a blue light spectrum by coating the scattering powder, and obtains a phosphor by coating the phosphor. Green spectrum and red spectrum. Due to the difference between the phosphor and the scattering powder material, the spot on the surface of the color wheel will diffuse to different extents, that is, the spot size on the phosphor is larger than the spot size on the surface of the scattering powder. The difference in spot size causes the center-to-edge chromatic aberration of the hybrid laser, and the spot of the mixed light is uneven.
  • the main purpose of the utility model is to propose a color wheel device, a light source system and a projection device, which can uniformly mix the scattered light and the laser to obtain a uniform spot.
  • a color wheel device includes a substrate, a reflector, a first diffusion sheet, and a driving motor, and the substrate is provided with a wavelength conversion element for generating a laser beam upon excitation light excitation; a reflector disposed on the substrate; the reflector for reflecting the excitation light; the first diffusion sheet being disposed on the substrate for scattering excitation light reflected by the reflector to obtain scattering Light, such that an angle of the scattered light matches an angle of the laser light; the drive motor is configured to drive the substrate and the wavelength conversion element to rotate coaxially.
  • the reflector is a specular reflector.
  • the substrate is provided with a color-correcting film for filtering the laser light emitted from the wavelength conversion element.
  • the reflector and the wavelength conversion element are circular or circular on the substrate, and the wavelength conversion element and the reflector are disposed at an axial position close to the substrate;
  • the color film and the first diffusion sheet are disposed at positions away from the axis of the substrate.
  • the reflector and the wavelength conversion element are arranged in a ring shape on the substrate, and the wavelength conversion element and the reflector are disposed at an axial position away from the substrate; the color correction film The sheet and the first diffusion sheet are disposed adjacent to an axial center of the substrate.
  • the reflector and the first diffusion sheet are disposed on the same side of the substrate.
  • the reflector and the first diffusion sheet are respectively disposed on opposite sides of the substrate.
  • a second diffusion sheet is disposed at a position of the reflector on an opposite side of the substrate.
  • the present invention further provides a light source system, the light source system comprising at least one light source and a color wheel device, the color wheel device comprising a substrate, a reflector and a first diffusion sheet, wherein the light source emits excitation light, a wavelength conversion element that emits excitation light to the color wheel device generates a laser beam; the substrate is provided with a wavelength conversion element for generating a laser light upon excitation of the excitation light; the reflector is disposed on the substrate; the reflection The body is configured to reflect the excitation light; the first diffusion sheet is disposed on the substrate, and is used for scattering excitation light reflected by the reflector to obtain scattered light, so that the angle of the scattered light is Said to be matched by the angle of the laser.
  • the utility model also provides a projection device, comprising a color wheel device, the color wheel device comprising a substrate, a reflector, a first diffusion sheet and a driving motor, wherein the substrate is provided with a laser for generating excitation light when the excitation light is excited. a wavelength conversion element; the reflector is disposed on the substrate; the reflector is configured to reflect the excitation light; the first diffusion sheet is disposed on the substrate for excitation of the reflection of the reflector The light is scattered to obtain scattered light such that the angle of the scattered light matches the angle of the laser light; the drive motor is for driving the substrate and the wavelength conversion element to rotate coaxially.
  • a projection device comprising a color wheel device, the color wheel device comprising a substrate, a reflector, a first diffusion sheet and a driving motor, wherein the substrate is provided with a laser for generating excitation light when the excitation light is excited. a wavelength conversion element; the reflector is disposed on the substrate; the reflector is configured to reflect the excitation light; the first diffusion
  • the color wheel device of the present invention is provided with a wavelength conversion element and a reflector on a substrate of the color wheel, the wavelength conversion element is for receiving the excitation light to generate the laser light, the reflector is for reflecting the excitation light, and the reflector for reflecting the excitation light is provided.
  • the excitation light can be directly reflected and used.
  • a driving motor to drive the substrate, the reflector, the first diffusion sheet, and the wavelength conversion element are coaxially rotated, so that the mixed light of different timings has a uniform spot.
  • FIG. 1 is a schematic structural view of a first embodiment of a color wheel device of the present invention
  • Figure 2 is a front elevational view of the substrate of Figure 1;
  • FIG. 3 is a schematic structural view of a second embodiment of the color wheel device of the present invention.
  • Figure 4 is a schematic structural view of a third embodiment of the color wheel device of the present invention.
  • Figure 5 is a schematic structural view of a fourth embodiment of the color wheel device of the present invention.
  • Figure 6 is a schematic structural view of a fifth embodiment of the color wheel device of the present invention.
  • Figure 7 is a schematic structural view of a sixth embodiment of the color wheel device of the present invention.
  • Figure 8 is a schematic structural view of a seventh embodiment of the color wheel device of the present invention.
  • Figure 9 is a schematic structural view of an eighth embodiment of the color wheel device of the present invention.
  • Figure 10 is a schematic view showing the structure of a ninth embodiment of the color wheel device of the present invention.
  • Second diffuser Label name 11, 12, 13, 14, 15, 15, 16, 17, 18, 19 Substrate 21, 22, 23, 24, 25, 26, 27, 28, 29 First diffuser 31, 32, 33, 34, 35, 36, 37, 38, 39 Wavelength conversion element 41, 42, 43, 44, 45, 46, 47, 48, 49 Reflector 51, 52, 53, 54, 55, 56, 57, 58, 59 Drive motor 61, 62, 63, 64, 65, 66, 67, 68, 69 Color correction diaphragm 71, 72, 73, 74, 75, 76, 77, 78, 79 Mirror group 89 Second diffuser
  • the directional indication is only used to explain in a certain posture (such as the drawing)
  • a certain posture such as the drawing
  • first”, “second”, etc. in the embodiments of the present invention, the description of “first”, “second”, etc. is used for the purpose of description only, and is not to be understood as an indication or Implied its relative importance or implicitly indicates the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the utility model provides a color wheel device.
  • the color wheel device includes a substrate 11, a reflector 41, a first diffusion sheet 21, and a driving motor 51.
  • the substrate 11 is provided with a wavelength conversion element 31 for generating a laser beam upon excitation light excitation; the reflector 41 is disposed on the substrate 11.
  • the reflector 41 is for reflecting the excitation light; the first diffusion sheet 21 is disposed on the substrate 11 for scattering the excitation light reflected by the reflector 41 to obtain the scattered light so that the angle of the scattered light matches the angle of the laser light.
  • a uniform mixed spot is generated, and the drive motor 51 is used to drive the substrate 11 and the wavelength conversion element 31 to rotate coaxially, thereby generating mixed spots having different timings.
  • the color wheel device includes a circular substrate 11 on which a wavelength conversion element 31 and a reflector 41 are disposed, and the wavelength conversion element 31 is used.
  • the received excitation light is generated by the laser light, and the reflector 41 is used to reflect the excitation light.
  • the substrate 11 is provided with a wavelength conversion element 31 for exciting red, green, and blue colors different from the color of the excitation light when receiving a monochromatic laser, and the wavelength conversion element 31 can be coated with a phosphor or fluorescent.
  • the part or the like excites the laser light of two colors of the three primary colors of red, green and blue, and the color of the received laser light is different from the color of the monochromatic laser light source.
  • the wavelength conversion element 31 When the monochromatic laser light is a blue laser light, the wavelength conversion element 31 has a red and green fluorescent portion, and the laser light is red and green.
  • the reflector 41 that reflects the excitation light is provided to directly reflect the excitation light and then use the laser of the color.
  • the collimation of the laser is good, and the spot is small relative to the scattering angle of the Langer distribution of the laser of the other two colors.
  • the first diffusion sheet 21 is disposed on the substrate 11 at a position corresponding to the reflected laser light, and the first diffusion sheet 21 diffuses the scattering angle of the reflected laser light. It is necessary to clarify the position of the first diffusion sheet 21.
  • the first diffusion sheet 21 and the reflector 41 may be disposed on the front side and/or the opposite side of the substrate 11 for scattering the laser light reflected by the reflector 41, thereby increasing the scattering angle of the reflected laser light so that the angle of the scattered light is
  • the matching described here means that the reflected laser light and the laser beam are transmitted through the color wheel to obtain a closer spot size, thereby generating a uniform mixed spot.
  • the reflector 41 is a specular reflector, and the specular reflector can be totally reflected or provided with a specular reflection film.
  • the excitation light source can be reflected and utilized by providing a specular reflection film, thereby obtaining laser light having a wavelength equal to that of the excitation light, and improving the light efficiency utilization.
  • the substrate 11 is provided with a color correction film 61 for filtering the laser light excited by the wavelength conversion element 31.
  • the trimming film 61 may be disposed in various manners, such as being disposed at a corresponding position in the radial direction of the substrate 11 according to the optical path, or disposed at a position close to the axis of the substrate 11, or may be disposed on the front and back sides of the substrate 11 or It is set on both sides of the front and back, and is used to filter the wavelength of the laser to obtain the ideal visible light spectrum.
  • the reflector 41 and the wavelength conversion element 31 are arranged in a circular or circular shape on the substrate 11 , and the wavelength conversion element 31 and the reflector 41 are disposed adjacent to the substrate 11 .
  • the position of the axial center; the laser light generated by the wavelength conversion element 31 and the reflected light passing through the reflector 41 are guided by the mirror group 71 to the position of the substrate 11 away from the axis thereof.
  • the color correction film 61 and the first diffusion sheet 21 are disposed at positions away from the axial center of the substrate 11, and the color correction film 61 filters the laser light generated by the wavelength conversion element 31, and the reflection of the first diffusion sheet 21 against the reflector 40 Light is scattered.
  • the filtered laser light and the scattered reflected light are synthesized into a time-continuous mixed light at a position away from the axis of the substrate 11 to obtain a uniform spot.
  • the wavelength conversion element 31 and the reflector 41 are disposed close to the axial center of the substrate 11, and the color correction film 61 and the first diffusion sheet 21 are disposed at positions away from the axial center of the substrate 11.
  • the reflector 41 and the first diffusion sheet 21 are disposed on the same side of the substrate 11, and the reflector 41 and the first diffusion sheet 21 are disposed on the side of the substrate 11 away from the driving motor 51.
  • the light effect loss of the excitation light passing through the substrate 11 can be reduced, and the color correction film 61 and the wavelength conversion element 31 can be arranged in various manners, for example, the color correction film 61 and the wavelength conversion element 31 are located on the substrate 11 away from the driving motor.
  • the color correction film 61 and the wavelength conversion element 31 are located on the side of the substrate 11 close to the drive motor 51; or, one of the color correction film 61 and the wavelength conversion element 31 is located on the substrate 11 away from the drive motor One side of the 51 and the other side of the substrate 11 are located close to the drive motor 51.
  • the color correction film 61 and the wavelength conversion element 31 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the wavelength conversion element 32 and the reflector 42 are disposed near the axial center of the substrate 12, and the color correction film 62 and the first diffusion sheet 22 are disposed away from the axial center of the substrate 12.
  • the wavelength conversion element 32 is disposed on the same side of the driving motor, and a surface of the wavelength conversion element 32 may be provided with a reflective film, which may reflect the excitation light emitted by the light source to the laser light generated by the wavelength conversion element 32. Then, the mirror group 72 is guided to the substrate 12 and away from the axis thereof, and finally the reflected laser light can be filtered by the color correction film 62.
  • the wavelength conversion element 32 may be disposed on a side opposite to the driving motor, that is, a side facing the light source, wherein the reflector 42 and the first diffusion sheet 22 are disposed on the same side of the substrate 12, and the reflector 42 and the first diffusion sheet 22 are disposed on the side of the substrate 12 close to the driving motor 52, and the color correction film 62 and the wavelength conversion element 32 can be arranged in various manners, for example, the color correction film 62 and the wavelength conversion element 32 are located.
  • the substrate 12 is remote from the side of the drive motor 52; alternatively, the color correction film 62 and the wavelength conversion element 32 are located on the side of the substrate 12 adjacent to the drive motor 52; or, one of the color correction film 62 and the wavelength conversion element 32 is located
  • the substrate 12 is away from the side of the driving motor 52, and the other is located on the side of the substrate 12 close to the driving motor 52.
  • the color correction film 62 and the wavelength conversion element 32 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has A uniform spot.
  • the wavelength conversion element 33 and the reflector 43 are disposed close to the axial center of the substrate 13, and the color correction film 63 and the first diffusion sheet 23 are disposed at positions away from the axial center of the substrate 13.
  • the wavelength conversion element 33 is disposed on the same side as the driving motor, and a surface of the wavelength conversion element 33 may be provided with a reflective film, which may reflect the excitation light emitted from the light source to the laser light generated by the wavelength conversion element 33. Then, the mirror group 73 is guided to the substrate 13 and away from the axial center thereof, and finally the reflected laser light can be filtered through the color correction film 63.
  • the wavelength converting element 33 can be disposed on the side opposite the drive motor, ie on the side facing the light source.
  • the reflector 43 and the first diffusion sheet 23 are disposed on opposite sides of the substrate 13, the reflector 43 is disposed on a side of the substrate 13 away from the driving motor 53, and the first diffusion sheet 23 is disposed on a side of the substrate 13 adjacent to the driving motor 53.
  • the light effect loss when the excitation light passes through the substrate 13 can be partially reduced.
  • the color correction film 63 and the wavelength conversion element 33 can be disposed in various manners, for example, the color correction film 63 and the wavelength conversion element 33 are located on the substrate 13 away from the driving.
  • One side of the motor 53; or, the color correction film 63 and the wavelength conversion element 33 are located on the side of the substrate 13 close to the drive motor 53; or, one of the color correction film 63 and the wavelength conversion element 33 is located on the substrate 13 away from the drive One side of the motor 53 and the other side are located on the side of the substrate 13 close to the drive motor 53, and the color correction film 63 and the wavelength conversion element 33 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the wavelength conversion element 34 and the reflector 44 are disposed near the axial center of the substrate 14, and the color correction film 64 and the first diffusion sheet 24 are disposed away from the axial center of the substrate 14.
  • the wavelength conversion element 34 is disposed on the same side as the driving motor, and a surface of the wavelength conversion element 34 may be provided with a reflective film, which may reflect the excitation light emitted by the light source to the laser light generated by the wavelength conversion element 34.
  • the mirror group 74 is guided to the substrate 14 and away from the axis thereof, and finally the reflected laser light can be filtered through the color correction film 64.
  • the wavelength converting element 34 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the reflector 44 and the first diffusion sheet 24 are disposed on opposite sides of the substrate 14, the reflector 44 is disposed on a side of the substrate 14 adjacent to the driving motor 54, and the first diffusion sheet 24 is disposed on a side of the substrate 14 away from the driving motor 54.
  • the color correction film 64 and the wavelength conversion element 34 can be arranged in various manners, for example, the color correction film 64 and the wavelength conversion element 34 are located on the side of the substrate 14 away from the driving motor 54; or, the color correction film 64 and The wavelength conversion element 34 is located on the side of the substrate 14 adjacent to the drive motor 54; or one of the color correction film 64 and the wavelength conversion element 34 is located on the side of the substrate 14 remote from the drive motor 54, and the other is located on the substrate 14 near the drive motor On one side of the 54 side, the color correction film 64 and the wavelength conversion element 34 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the reflector 45 and the wavelength conversion element 35 are arranged in a circular shape on the substrate 15, and the wavelength conversion element 35 and the reflector 45 are disposed at an axis away from the substrate 15. Position; the laser light generated by the wavelength conversion element 35 and the reflected light passing through the reflector 45 are guided by the mirror group 75 to a position where the substrate 15 is away from its axis.
  • the wavelength conversion element 35 is disposed on the same side as the driving motor, and a surface of the wavelength conversion element 35 may be provided with a reflective film, which may reflect the excitation light emitted from the light source to the laser light generated by the wavelength conversion element 35.
  • the mirror group 75 is guided to the substrate 15 and away from the axis thereof, and finally the reflected laser light can be filtered by the color correction film 65.
  • the wavelength converting element 35 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the color correction film 65 and the first diffusion sheet 25 are disposed at positions away from the axial center of the substrate 15, and the color correction film 65 filters the laser light generated by the wavelength conversion element 35, and the reflection of the first diffusion sheet 25 on the reflector 45 is performed.
  • Light is scattered.
  • the filtered laser light and the scattered reflected light are synthesized into a time-continuous mixed light at a position away from the axis of the substrate 15 to obtain a uniform spot.
  • the wavelength conversion element 35 and the reflector 45 are disposed at positions away from the axis of the substrate 15, and the color correction film 65 and the first diffusion sheet 25 are disposed close to the axial center of the substrate 15.
  • the reflector 45 and the first diffusion sheet 25 are disposed on the same side of the substrate 15, and the reflector 45 and the first diffusion sheet 25 are disposed on the side of the substrate 15 away from the driving motor 55.
  • the light effect loss when the excitation light passes through the substrate 15 can be reduced, and the color correction film 65 and the wavelength conversion element 35 can be arranged in various manners, for example, the color correction film 65 and the wavelength conversion element 35 are located on the substrate 15 away from the driving motor.
  • One side of 55; or, the color correction film 65 and the wavelength conversion element 35 are located on the side of the substrate 15 close to the drive motor 55; or, one of the color correction film 65 and the wavelength conversion element 35 is located on the substrate 15 away from the drive motor
  • One side of the 55 is located on the side of the substrate 15 close to the drive motor 55, and the color correction film 65 and the wavelength conversion element 35 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the wavelength conversion element 36 and the reflector 46 are disposed at positions away from the axis of the substrate 16, and the color correction film 66 and the first diffusion sheet 26 are disposed near the axial center of the substrate 16.
  • the wavelength conversion element 36 is disposed on the same side of the driving motor, and the surface of the wavelength conversion element 36 may be provided with a reflective film, which may reflect the excitation light emitted by the light source to the laser light generated by the wavelength conversion element 36.
  • the mirror group 76 is then guided to the substrate 16 and close to its axis, and finally the reflected laser light can be filtered through the color correction film 66.
  • the wavelength converting element 36 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the reflector 46 and the first diffusion sheet 26 are disposed on the same side of the substrate 16, and the reflector 46 and the first diffusion sheet 26 are disposed on the side of the substrate 16 near the drive motor 56.
  • the color correction film 66 and the wavelength conversion element 36 can be arranged in various manners, for example, the color correction film 66 and the wavelength conversion element 36 are located on the side of the substrate 16 away from the driving motor 56; or, the color correction film 66 and The wavelength conversion element 36 is located on the side of the substrate 16 adjacent to the drive motor 56; alternatively, one of the color correction film 66 and the wavelength conversion element 36 is located on the side of the substrate 16 remote from the drive motor 56, and the other is located on the substrate 16 near the drive motor On one side of the 56, the color correction film 66 and the wavelength conversion element 36 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the wavelength conversion element 37 and the reflector 47 are disposed at positions away from the axis of the substrate 17, and the color correction film 67 and the first diffusion sheet 27 are disposed close to the axial center of the substrate 17.
  • the wavelength conversion element 37 is disposed on the same side of the driving motor, and a surface of the wavelength conversion element 37 may be provided with a reflective film, which may reflect the excitation light emitted from the light source to the laser light generated by the wavelength conversion element 37. Then, the mirror group 77 is guided to the substrate 17 and is close to the position of its axis, and finally the reflected laser light can be filtered by the color correction film 67.
  • the wavelength converting element 37 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the reflector 47 and the first diffusion sheet 27 are disposed on the opposite side of the substrate 17, and the reflector 47 is disposed on the side of the substrate 17 away from the drive motor 57, the first diffusion sheet 27
  • the side of the substrate 17 adjacent to the driving motor 57 can partially reduce the loss of light effect when the excitation light passes through the substrate 17.
  • the coloring film 67 and the wavelength conversion element 37 can be arranged in various ways, such as a color-changing film.
  • the color correction film 67 and the wavelength conversion element 37 are located on the side of the substrate 17 away from the drive motor 57; or, the color correction film 67 and the wavelength conversion element 37 are located on the side of the substrate 17 close to the drive motor 57; or, the color correction film 67 and the wavelength conversion One of the elements 37 is located on the side of the substrate 17 away from the drive motor 57, and the other is located on the side of the substrate 17 close to the drive motor 57.
  • the color correction film 67 and the wavelength conversion element 37 can be approximated by the above various arrangement methods. The effect is to make the mixed light have a uniform spot.
  • the wavelength conversion element 38 and the reflector 48 are disposed at positions away from the axis of the substrate 18, and the color correction film 68 and the first diffusion sheet 28 are disposed close to the axial center of the substrate 18.
  • the wavelength conversion element 38 is disposed on the same side of the driving motor, and the surface of the wavelength conversion element 38 may be provided with a reflective film, which may reflect the excitation light emitted by the light source to the laser light generated by the wavelength conversion element 38.
  • the mirror group 78 is then guided to the substrate 18 and close to its axis, and finally the reflected laser light can be filtered through the color correction film 68.
  • the wavelength converting element 38 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the reflector 48 and the first diffusion sheet 28 are disposed on the opposite side of the substrate 18, and the reflector 48 is disposed on the side of the substrate 18 near the drive motor 58, the first diffusion sheet 28
  • the trimming film 68 and the wavelength converting element 38 may be disposed on the side of the substrate 18 away from the driving motor 58, such as the trimming film 68 and the wavelength converting element 38 being located on the substrate 18 away from the driving motor 58.
  • the color modifying film 68 and the wavelength converting element 38 are located on the side of the substrate 18 adjacent to the driving motor 58; or one of the color modifying film 68 and the wavelength converting element 38 is located on the substrate 18 away from the driving motor 58.
  • the color correction film 68 and the wavelength conversion element 38 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the second diffuser 89 is disposed at a position of the reflector 49 region.
  • the reflected light of the reflected body 49 can be scattered by the second diffusion sheet 89, thereby further increasing the scattering angle of the reflected light by the reflector 49.
  • the color correction film 69 and the wavelength conversion element 39 may be arranged in various manners, such as: the color correction film 69 and the wavelength conversion element 39 are located on the side of the substrate 19 away from the driving motor 59; or, the color correction film 69 and the wavelength The conversion element 39 is located on the side of the substrate 19 near the drive motor 59; alternatively, one of the color correction film 69 and the wavelength conversion element 39 is located on the side of the substrate 19 away from the drive motor 59, and the other is located on the substrate 19 near the drive motor 59. On one side, the color correction film 69 and the wavelength conversion element 39 can achieve an approximate effect by the above various arrangement modes, so that the mixed light has a uniform spot.
  • the wavelength conversion element 39 is disposed on the same side as the driving motor, and the surface of the wavelength conversion element 39 may be provided with a reflective film, which may inject the excitation light emitted by the light source into the laser light reflection generated by the wavelength conversion element 39. Then, the mirror group 79 is guided to the substrate 19 and close to the position of its axis, and finally the reflected laser light can be filtered by the color correction film 69.
  • the wavelength converting element 39 can be disposed on the side opposite the drive motor, i.e., the side facing the light source.
  • the light source system further includes at least one light source and a color wheel device.
  • the light source may be a laser light source.
  • the color wheel device comprises a substrate, a reflector and a first diffusion sheet, wherein the light source emits excitation light.
  • the wavelength conversion element in which the excitation light is incident on the color wheel device generates a laser beam;
  • the substrate is provided with a wavelength conversion element for generating a laser light upon excitation of the excitation light;
  • the reflector is disposed on the substrate for reflecting the excitation light; the first diffusion sheet
  • the substrate is disposed at a position corresponding to the reflected light for scattering the reflected light of the reflector.
  • This arrangement increases the scattering angle of the reflected light such that the angle of the scattered light matches the angle of the laser, resulting in a uniform mixed spot.
  • the utility model also provides a projection device, which comprises the foregoing color wheel device. It should be noted that since the projection device of the present invention adopts all the technical solutions of all the embodiments of the color wheel device, the projection of the utility model The device has all the beneficial effects brought about by the technical solution of the embodiment of the color wheel device, and details are not described herein again.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

La présente invention concerne un appareil à cercle chromatique, un système sources lumineuses et un dispositif de projection. L'appareil à cercle chromatique comprend un substrat (11), un réflecteur (41), un premier diffuseur (21) et un moteur d'entraînement (51). Sur le substrat (11) se trouve un élément de conversion de longueurs d'onde (31) utilisé pour produire une lumière excitée lorsqu'il est excité par une lumière d'excitation. Le réflecteur (41) est disposé sur le substrat (11). Le réflecteur (41) sert à réfléchir la lumière d'excitation. Le premier diffuseur (21) est disposé sur le substrat (11) et utilisé pour diffuser la lumière d'excitation réfléchie par le réflecteur (41) pour acquérir une lumière diffusée, permettant ainsi à l'angle de la lumière diffusée de correspondre à l'angle de la lumière excitée. Le moteur d'entraînement (51) sert à amener le substrat (11) et l'élément de conversion de longueur d'onde (31) à tourner coaxialement. L'appareil à cercle chromatique, le système de sources lumineuses et le dispositif de projection permettent à la lumière diffusée et à la lumière excitée de se mélanger uniformément, ce qui permet d'obtenir une tache lumineuse uniforme.
PCT/CN2017/090274 2017-02-13 2017-06-27 Appareil à cercle chromatique, système de sources lumineuses et dispositif de projection Ceased WO2018145393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720131194.8U CN206594438U (zh) 2017-02-13 2017-02-13 色轮装置、光源系统及投影设备
CN201720131194.8 2017-02-13

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CN111077720B (zh) * 2018-10-18 2022-05-13 深圳光峰科技股份有限公司 光源系统及显示设备
CN111381426B (zh) * 2018-12-29 2021-12-31 深圳光峰科技股份有限公司 光源系统及投影设备
JP7484199B2 (ja) * 2020-02-04 2024-05-16 カシオ計算機株式会社 蛍光体ホイール装置、光源装置、投影装置及び蛍光体装置
WO2021259270A1 (fr) 2020-06-22 2021-12-30 青岛海信激光显示股份有限公司 Ensemble source de lumière et dispositif de projection
US12429756B2 (en) 2020-06-22 2025-09-30 Hisense Laser Display Co., Ltd Laser projection apparatus
CN113900339B (zh) 2020-06-22 2022-09-27 青岛海信激光显示股份有限公司 光源组件和投影设备

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