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WO2018103293A1 - Dispositif de cercle chromatique et appareil de projection - Google Patents

Dispositif de cercle chromatique et appareil de projection Download PDF

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Publication number
WO2018103293A1
WO2018103293A1 PCT/CN2017/088632 CN2017088632W WO2018103293A1 WO 2018103293 A1 WO2018103293 A1 WO 2018103293A1 CN 2017088632 W CN2017088632 W CN 2017088632W WO 2018103293 A1 WO2018103293 A1 WO 2018103293A1
Authority
WO
WIPO (PCT)
Prior art keywords
low thermal
color wheel
conductive substrate
wheel device
heat
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/CN2017/088632
Other languages
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 WO2018103293A1 publication Critical patent/WO2018103293A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G03B21/16—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
    • G03B21/18—Fire preventing or extinguishing
    • 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 projection devices, in particular to a color wheel device and a projection device.
  • the laser TVs use a laser phosphor source, which is realized by laser-exciting the phosphor on the color wheel.
  • the photon energy will change negatively with the wavelength. The shorter the wavelength, the larger the photon energy. Therefore, when the phosphor is excited by a short-wavelength laser, the higher-energy blue laser photon will be used as the phosphor material. Absorbs and releases long-wavelength fluorescent photons with lower energy. According to the law of conservation of energy, the energy absorbed by the phosphor without being released is converted into heat.
  • the phosphor itself has a heat saturation effect, that is, when the temperature of the phosphor reaches a certain value, changing the energy of the excitation light cannot improve the conversion efficiency of the phosphor, and therefore, it is necessary to promptly derive the heat on the phosphor.
  • the existing color wheel generally comprises an aluminum substrate, a driving member for driving the rotation of the aluminum substrate, and is generally a motor.
  • the color wheel is mounted on the front end portion of the sleeve of the drive motor, and the phosphor layer is disposed on a side of the aluminum sheet substrate facing away from the drive motor, and the phosphor layer receives the incident excitation light and generates a laser light.
  • the fluorescent layer on the color wheel will continuously generate heat during operation. If this part of heat is not well transferred from the color wheel fluorescent layer, the temperature of the color wheel fluorescent layer will become higher and higher, which in turn affects the color wheel. Conversion efficiency and longevity.
  • the heat generated by the fluorescent layer mainly radiates heat by contact with the air during the rotation of the substrate, the heat dissipation area of the substrate itself is small, the heat dissipation is limited, and the substrate is directly connected with the motor, which transfers heat to the motor to make the motor temperature.
  • the motor itself will generate a large amount of heat during the movement. If the heat transferred through the substrate is large, the motor will often work at a high temperature, which will reduce the stability and life of the motor.
  • the main object of the present invention is to provide a color wheel device, which aims to reduce the heat transfer of the wavelength conversion layer to other components connected to the low heat conductive substrate, and to protect other components.
  • the present invention provides a color wheel device, the color wheel device comprising:
  • a heat dissipating component fixed on the low thermal conductive substrate and disposed around a center of the low thermal conductive substrate;
  • a wavelength conversion layer is disposed on the heat dissipation component.
  • the low thermal conductivity substrate is a glass plate.
  • the heat dissipating component includes a connecting portion connected to an outer edge of the low thermal conductive substrate and an annular mounting portion extending outward from the connecting portion, and the wavelength conversion layer is disposed on the annular mounting portion.
  • the low heat conductive substrate has a first plate surface connected to the driving member and a second plate surface facing away from the first plate surface, and the connecting portion is fixedly fixed to the first plate of the low thermal conductive substrate Or the second plate surface, or the connecting portion has an annular groove through which the connecting portion is snapped on the outer edge of the low thermal conductive substrate.
  • a protrusion is disposed on a side of the heat dissipation component facing away from the wavelength conversion layer.
  • the protrusion is an annular protrusion and is disposed concentrically with the substrate;
  • the protrusion is a columnar protrusion and is plural, and the plurality of columnar protrusions are distributed along a ring that is concentric with the low heat conductive substrate;
  • the protrusions are a plurality of sheet-like protrusions, wherein each of the sheet-like protrusions has an end on the heat dissipating component toward an inner side of the low thermal conductive substrate, and the other end is along the low thermal conductivity substrate. Radially extending outwardly; or a plurality of the tabular projections are evenly distributed along the circumference of the heat dissipating component, and a plurality of annular projection groups having different diameters are formed.
  • the wavelength conversion layer is disposed on a ceramic board, and the ceramic board is disposed in close contact with the heat dissipation component.
  • the heat dissipating component is an aluminum sheet
  • the wavelength conversion layer is a phosphor coating coated on the aluminum sheet.
  • the color wheel device further includes a filter disposed on the low thermal conductive substrate and located on an inner ring side of the wavelength conversion layer.
  • the color wheel device further includes a filter disposed in a ring shape, the filter is disposed between the low heat conductive substrate and the heat dissipation component, and is respectively connected to the low heat conductive substrate and the heat dissipation component, or The filter is disposed on an outer ring side of the wavelength conversion layer and connected to the heat dissipation component.
  • the color wheel device further includes a driving member for driving the movement of the low thermal conductive substrate, and the driving member is disposed on a side of the low thermal conductive substrate facing away from the wavelength conversion layer.
  • the present invention also provides a projection apparatus comprising the color wheel device of any of the above.
  • the color wheel device comprises: a low thermal conductive substrate; a heat dissipating component fixed on the low thermal conductive substrate and disposed around a center of the low thermal conductive substrate; and a wavelength conversion layer disposed on the heat dissipating component.
  • the wavelength conversion layer is disposed on the heat dissipation component, so that the heat generated by the wavelength conversion layer is directly transmitted to the heat dissipation component, and the heat transfer between the wavelength conversion layer and the heat dissipation component is directly performed, and the heat transfer efficiency is high.
  • the heat of the conversion layer can be quickly absorbed by the heat dissipating component, thereby improving the heat dissipation efficiency of the wavelength conversion layer and ensuring the conversion efficiency of the entire color wheel device.
  • the low thermal conductivity substrate is used to isolate the wavelength conversion layer from other components.
  • Heat transfer for example, isolating the heat transfer between the wavelength conversion layer and the drive member, preventing the heat generated by the wavelength conversion layer from affecting the performance of other components, ensuring the stability of the operation of other components, and improving the service life of other components. Work efficiency.
  • 1 is a schematic view showing the cooperation between the first embodiment of the color wheel device of the present invention and a light source;
  • FIG. 2 is a schematic view showing the cooperation between the second embodiment of the color wheel device of the present invention and a light source;
  • FIG. 3 is a schematic structural view of a first embodiment of a heat dissipation structure in a color wheel device of the present invention
  • FIG. 4 is a schematic structural view of a second embodiment of a heat dissipation structure in a color wheel device of the present invention.
  • FIG. 5 is a schematic structural view of a third embodiment of a heat dissipation structure in a color wheel device of the present invention.
  • FIG. 6 is a schematic structural view of a fourth embodiment of a heat dissipation structure in a color wheel device of the present invention.
  • Figure 7 is a schematic view showing the cooperation between the third embodiment of the color wheel device of the present invention and a light source;
  • FIG. 8 is a schematic view showing the cooperation between the fourth embodiment of the color wheel device of the present invention and a light source.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating 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 low thermal conductivity substrate 10, a wavelength conversion layer 40, and a heat dissipation assembly 30.
  • the low thermal conductive substrate 10 is preferably in the shape of a disk.
  • the heat dissipating component 30 is fixed on the low thermal conductive substrate 10 and disposed around the center of the low thermal conductive substrate 10, that is, the heat dissipating component 30 may be on a low thermal conductive substrate.
  • an annular body disposed around the center of the low thermal conductive substrate 10 is formed, or part or all of the heat dissipating component 30 is overlapped with the low thermal conductive substrate 10 to form an annular body disposed around the center of the low thermal conductive substrate 10.
  • the heat dissipating component 30 may be a unitary annular body or a plurality of component components disposed separately.
  • the heat dissipating component 30 includes a plurality of curved portions, and the plurality of arcuate portions are spliced into a ring shape.
  • the heat dissipation assembly 30 is fixed on the low thermal conductive substrate 10 and disposed around the center of the low thermal conductive substrate 10, that is
  • the low thermal conductivity substrate 10 has a first side surface and a second side surface opposite the first side surface.
  • the first side is for mounting the driving member 20 to drive the low thermal conductive substrate 10 to rotate.
  • the color wheel device in this embodiment may be connected to the external driving member and driven to rotate by the external driving member, or a driving member 20 and the low thermal conductive substrate 10 may be further added to the color wheel device. Direct drive connection eliminates the need to additionally configure external drive components.
  • the driving component 20 can be a motor, specifically connected to the first side surface of the low thermal conductive substrate 10 .
  • a wavelength conversion layer 40 is disposed on a side of the same side of the second side surface of the low thermal conductive substrate 10, and the wavelength conversion layer 40 may be a wavelength converting material.
  • a phosphor is formed on the heat dissipation assembly 30.
  • the wavelength conversion layer 40 generates heat during the excitation process.
  • the wavelength conversion layer 40 is directly disposed on the heat dissipation component 30, so that the heat generated by the wavelength conversion layer 40 is directly transmitted to the heat dissipation component.
  • the heat transfer between the wavelength conversion layer 40 and the heat dissipation component 30 is direct, and the heat transfer efficiency is high.
  • the heat of the wavelength conversion layer 40 can be quickly absorbed by the heat dissipation component 30 and passed through the outside world introduced by the air passage. The air contact rapidly dissipates heat, thereby improving the heat dissipation efficiency of the wavelength conversion layer 40 and ensuring the conversion efficiency of the entire color wheel device.
  • the low thermal conductivity substrate 10 can be made of various materials with low thermal conductivity, such as a glass plate, and the heat transfer property of the wavelength conversion layer 40 through the substrate is reduced by the low thermal conductivity to reduce the driving member 20 . Influenced by the heat generated by the wavelength conversion layer 40, the working efficiency of the driving member 20 is ensured; in addition, since the heat generated by the driving member 20 itself does not cause it to be constantly in a high temperature state, its stability and life are compared with those of high temperature. When, it is greatly improved.
  • the heat dissipating component 30 is preferably annular, and the side of the wavelength conversion layer 40 is not provided with a heat dissipating structure, for example, protrusions of various shapes are used for auxiliary heat dissipation, and the specific shape, position and number of the protrusions are not As long as the heat transfer assembly 30 and the low thermal conductive substrate 10 are all rotated and balanced. It can be understood that the heat dissipation area of the heat dissipation component 30 can be increased by providing the protrusions, so that the heat of the wavelength conversion layer 40 can be forcedly convected into the air through the heat dissipation component 30, thereby improving the heat dissipation efficiency of the wavelength conversion layer 40.
  • the protrusions can be realized by at least the following embodiments.
  • the protrusions are annular protrusions 31 and are disposed around the center of the low thermal conductivity substrate 10.
  • the annular protrusion has a large heat dissipation area and a good heat dissipation effect.
  • the annular protrusion 31 is disposed concentrically with the low thermal conductive substrate 10, which is easy to ensure the balance when the low thermal conductive substrate 10 is rotated, and the low thermal conductive substrate 10 has small air resistance and low noise when rotating.
  • annular protrusions 31 are spaced along the center to the outer edge of the low thermal conductive substrate 10, so that an annular air groove is formed between the adjacent two annular protrusions 31 to improve the heat dissipation effect.
  • the number of turns of the annular protrusion 31 disposed around the center of the circle can be set according to practical applications. For example, the number of turns of the annular protrusion 31 can be set to one, two, three, four, five, and the like.
  • the outer edge of the low thermal conductive substrate 10 described below refers to the outer edge portion of the low thermal conductive substrate 10 away from its center.
  • the protrusion height of the plurality of annular protrusions 31 on the low thermal conductive substrate 10 may be further decreased from the center to the outer edge of the low thermal conductive substrate 10. In this way, the annular protrusion 31 near the center of the low thermal conductive substrate 10 can be ensured to be more in contact with the air, thereby improving the heat dissipation effect and ensuring uniform heat dissipation throughout the low thermal conductivity substrate 10.
  • the projections are cylindrical projections 32, and are plural, and the plurality of cylindrical projections 32 dissipate a large amount of heat, wherein the cylindrical projections 32 are conveniently formed.
  • each of the cylindrical protrusions 32 may be evenly disposed around the center of the low thermal conductive substrate 10 to ensure the balance of rotation of the low thermal conductive substrate 10 and the balance of heat dissipation of the low thermal conductive substrate 10.
  • the projections are sheet-like projections 33, and are plural.
  • Each of the sheet-like protrusions 33 is disposed at an outer edge of the low heat conductive substrate 10 at one end of the heat dissipation assembly 30, and extends at a center of the lower heat conductive substrate 10 toward a center thereof.
  • the tab-like protrusions 33 may be of a straight strip shape or an arc shape, and are not limited herein.
  • the convex shape shown in FIG. 5 has a certain curvature, and the arc-shaped structure has such a curved structure.
  • the arrangement of the protrusions on the low thermal conductive substrate 10 is similar to a spiral shape, and during the rotation of the low thermal conductive substrate 10, more airflow can be driven, so that the heat on the low thermal conductive substrate 10 can be carried by the airflow in time. Go and improve the heat dissipation effect.
  • the shape of the projection is substantially the same as that of the third embodiment, and is also a sheet-like projection 34 (this embodiment is distinguished from the third embodiment), and is plural.
  • the difference is that the arrangement on the low heat conductive substrate 10 is different.
  • a plurality of the sheet-like protrusions 34 are uniformly distributed in the circumferential direction of the heat dissipation assembly 30, and one or more diameters are formed. Annular raised group.
  • the protrusions of the structure are uniformly distributed on the low heat conductive substrate 10, and during the rotation of the low heat conductive substrate 10, more airflow can be driven, so that the heat on the low heat conductive substrate 10 is carried away by the airflow, thereby improving the heat dissipation effect.
  • the sheet-like protrusions 34 in the two annular protrusion groups adjacent to each other are partially or completely staggered to balance the heat dissipation of the entire heat dissipation assembly 30.
  • the mounting structure of the heat dissipating component 30 and the low thermal conductive substrate 10 is not limited, and at least has the following first embodiment and second embodiment.
  • the heat dissipating component 30 includes a connecting portion (not labeled) connected to an outer edge of the low thermal conductive substrate 10 and from the connecting portion An outwardly extending annular mounting portion (not shown) is disposed on the annular mounting portion. That is, a part of the structure of the heat dissipating component 30 is connected to the outer edge of the low thermal conductive substrate 10.
  • the heat dissipating component 30 has a large contact area with air and has high heat dissipation efficiency.
  • the heat dissipating component 30 is on the low thermal conductivity substrate 10, and the low thermal conductivity substrate 10 faces away from the driving component 20. Side fit and fixed. That is, the heat dissipating component 30 is all on the low heat conductive substrate 10, and the structure heat dissipating component 30 is relatively relatively stable.
  • a heat dissipation hole (not shown) may be disposed at a position corresponding to the heat dissipation component 30 of the low heat conductive substrate 10 to ensure the heat dissipation effect of the heat dissipation component 30.
  • the heat dissipation hole may further be disposed to pass through the protrusions of various shapes described above to facilitate heat dissipation.
  • the low thermal conductivity substrate 10 has a first board surface connected to the driving member 20 and the first board.
  • the second plate surface facing away from the surface, the connecting portion is fixedly fixed to the first plate surface (such as FIG. 1) or the second plate surface of the low thermal conductive substrate 10, or alternatively, as shown in FIG.
  • the connecting portion has an annular groove (not shown) that is engaged with the outer edge of the low thermal conductive substrate 10 through the annular groove.
  • the connection between the connecting portion and the low heat conductive substrate 10 may be performed by screwing or by double-sided tape or glue. Alternatively, the screw may be connected and then reinforced by glue.
  • the bonding portion may be further bonded and reinforced by glue.
  • the heat dissipating component 30 is preferably mounted on the low thermal conductive substrate 10 by bonding, and of course, The way the screws are connected.
  • the heat dissipating component 30 is an aluminum sheet
  • the wavelength conversion layer 40 is a phosphor coating coated on the aluminum sheet.
  • the wavelength conversion layer 40 is formed by mounting a carrier coated with a phosphor on the low thermal conductive substrate 10, wherein the carrier may preferably be a ceramic plate, and the ceramic plate passes The adhesive manner is attached and fixed to the heat dissipation assembly 30.
  • the color wheel device further includes a filter 50 disposed on the low thermal conductive substrate 10 and Located on the inner ring side of the wavelength conversion layer 40, where the inner ring side is the low thermal conductivity substrate 10 relative to the wavelength conversion layer 40, not specifically referring to the inner ring side of the low thermal conductivity substrate 10, when the wavelength conversion layer 40
  • the filter 50 is used to filter the incident laser light and transmit it from the glass substrate to achieve a filtering effect while reducing the volume of the entire color wheel device.
  • the mounting position of the filter 50 can be appropriately selected to facilitate installation.
  • the filter 50 is preferably mounted on the low thermal conductive substrate 10 so as to be on the inner ring side of the wavelength conversion layer 40.
  • the low heat conductive substrate 10 is a glass plate in this embodiment
  • the light transmittance of the glass plate can be utilized for receiving the laser light to reduce the optical path of the emitted light, thereby reducing the laser light source. volume.
  • the heat dissipating component 30 and the low heat conductive substrate 10 mounting structure since the heat dissipating component 30 is completely mounted on the low heat conducting substrate 10, a large space on the low heat conducting substrate 10 is occupied. In this embodiment, the filtering is performed.
  • the sheet 50 is preferably connected to the low thermal conductive substrate 10 or the heat dissipating component 30 and disposed around the wavelength conversion layer 40.
  • the filter function of the filter 50 may be replaced by a filter 60, as shown in FIG. 7 and FIG. 8 .
  • the filter 60 is disposed in a ring shape, and the filter 60 is at The low thermal conductive substrate 10 and the heat dissipating component 30 are respectively connected to the low thermal conductive substrate 10 and the heat dissipating component 30, that is, from the center of the circle, in turn, the low thermal conductive substrate 10 ⁇ the filter 60 ⁇ the heat dissipating component 30; or, the filter 60 is disposed on the outer ring side 60 of the wavelength conversion layer 40, and is connected to the heat dissipation component 30, that is, from the center of the circle, in turn, the low thermal conductivity substrate 10 ⁇ heat dissipation component 30 ⁇ filtering Slice 60. Both of these embodiments are capable of filtering the incident laser light to achieve a filtering effect.
  • the color wheel device proposed by the present invention installs the wavelength conversion layer 40 on the one hand by disposing the heat dissipation component 30, so that the heat generated by the wavelength conversion layer 40 is directly transmitted to the heat dissipation component 30, and the wavelength conversion layer 40 and The heat transfer between the heat dissipating components 30 is high, and the heat transfer efficiency is high.
  • the heat of the wavelength conversion layer 40 can be quickly absorbed by the heat dissipating component 30, thereby improving the heat dissipation efficiency of the wavelength conversion layer 40 and ensuring the entire color wheel.
  • the conversion efficiency of the device on the other hand, the heat transfer between the wavelength conversion layer 40 and the driving member 20 is separated by the low heat conductive substrate 10, so that the driving member 20 is prevented from being affected by the heat generated by the wavelength conversion layer 40, and the driving performance is ensured.
  • the stability of the work is 20, and the service life of the drive member 20 and the work efficiency are improved.
  • the present invention also provides a projection device, which may be an educational projector, a laser television, a micro-projection or a cinema machine, etc.
  • the projection device includes the color wheel device of the above embodiment, and the specific structure of the projection device refers to the above implementation.
  • the projection device since all the technical solutions of all the above embodiments are used in the present disclosure, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are not repeatedly described herein.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Projection Apparatus (AREA)

Abstract

L'invention concerne un dispositif de cercle chromatique, comprenant : un substrat faiblement conducteur de chaleur (10) ; un ensemble de dissipation de chaleur (30), fixé sur le substrat faiblement conducteur de chaleur (10) et conçu pour entourer le centre du cercle du substrat faiblement conducteur de chaleur (10) ; et une couche de conversion de longueur d'onde (40), disposée sur l'ensemble de dissipation de chaleur (30). Le dispositif de cercle chromatique améliore le rendement de dissipation de chaleur et réduit la chaleur transférée par la couche de conversion de longueur d'onde (40) vers d'autres éléments connectés au substrat faiblement conducteur de chaleur (10), ce qui améliore le rendement de fonctionnement d'autres éléments. L'invention concerne en outre un appareil de projection comprenant le cercle chromatique.
PCT/CN2017/088632 2016-12-09 2017-06-16 Dispositif de cercle chromatique et appareil de projection Ceased WO2018103293A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201621356607.4U CN206321931U (zh) 2016-12-09 2016-12-09 色轮装置及投影设备
CN201621356607.4 2016-12-09

Publications (1)

Publication Number Publication Date
WO2018103293A1 true WO2018103293A1 (fr) 2018-06-14

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CN (1) CN206321931U (fr)
WO (1) WO2018103293A1 (fr)

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CN113484769A (zh) * 2021-07-13 2021-10-08 四川帝威能源技术有限公司 一种自动化运行的高性能蓄电池容量检测装置
CN114578638A (zh) * 2020-11-30 2022-06-03 中强光电股份有限公司 波长转换元件及投影装置

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CN207164450U (zh) * 2017-08-01 2018-03-30 深圳市光峰光电技术有限公司 色轮、光源系统及投影系统
CN109917611A (zh) * 2017-12-12 2019-06-21 深圳光峰科技股份有限公司 一种色轮装置及投影设备
CN111527447B (zh) * 2017-12-27 2022-01-11 京瓷株式会社 色轮以及投影仪
CN110262173A (zh) * 2019-05-31 2019-09-20 苏州佳世达光电有限公司 易散热的荧光色轮及投影机
CN110632813A (zh) * 2019-10-31 2019-12-31 珠海市大晟云视传媒科技有限公司 一种荧光轮散热结构
CN110864271A (zh) * 2019-11-26 2020-03-06 扬州吉新光电有限公司 一种具有散热结构的荧光轮及散热结构的制备方法
CN114967303B (zh) * 2021-02-26 2024-08-27 中强光电股份有限公司 波长转换装置、其制作方法及投影机
CN114675414A (zh) * 2022-02-22 2022-06-28 河南中光学集团有限公司 一种扰流散热式荧光轮

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CN113484769A (zh) * 2021-07-13 2021-10-08 四川帝威能源技术有限公司 一种自动化运行的高性能蓄电池容量检测装置

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