Supporting assembly, assembling method thereof and light source device

Abstract

The invention provides a supporting assembly, an assembling method thereof and a light source device. The supporting assembly can comprise a supporting piece and a light guiding element, the light guiding element can be arranged at the position, corresponding to the mounting hole, of the mounting face of the supporting piece, the mounting hole is formed in the mounting face of the supporting piece, and the light guiding element is arranged on the mounting face and covers the mounting hole. When the air pressure of the second bottom surface of the light guiding element in the mounting hole is smaller than the air pressure outside the mounting hole, the light guiding element can be pre-fixed on the supporting piece, and then the supporting piece and the light guiding element are fixed by dispensing, so that the accuracy of the arrangement position of the light guiding element is improved, and the reflection accuracy of the light guiding element is further improved. According to the assembling method of the supporting assembly provided by the embodiment of the invention, the assembling convenience of the supporting assembly is improved. The light source device applied to the supporting assembly improves the light emitting precision.

Description

Technical Field

[0001] The present application relates to the technical field of projection equipment, and in particular to a support assembly, an assembly method thereof, and a light source device. Background Art

[0002] Surface Mount Devices (SMD) lasers are widely used in consumer electronics, automotive electronics, medical equipment, etc. due to their small size. The more advanced the field, the higher the precision requirement for the light source device, and the precision of the light source device mainly depends on the installation precision of the light guiding element.

[0003] However, in the existing support assembly, the light guiding element is very easy to move during the installation process due to its small size, resulting in low installation accuracy of the light guiding element, which not only affects the convenience of supporting assembly installation, but also affects the light output accuracy of the light source device. Summary of the invention

[0004] The embodiments of the present application provide a support assembly, an assembly method thereof, and a light source device to at least partially improve the above-mentioned problems.

[0005] The implementation method of the present application is achieved through the following technical solutions.

[0006] In a first aspect, an embodiment of the present application provides a support assembly, comprising: a support member and a light guiding element. The support member has a first bottom surface and a mounting surface, each of the mounting surfaces is arranged at an angle relative to the first bottom surface, and a mounting hole is provided on the support member, and the mounting hole at least passes through the mounting surface. The light guiding element has a second bottom surface, which is arranged on the mounting surface and covers the mounting hole, wherein the second bottom surface covers the mounting hole in a state where the air pressure in the mounting hole is less than the air pressure outside the mounting hole, and the light guiding element is used to change the traveling direction of a light beam incident on the light guiding element.

[0007] In some embodiments, the air pressure of the second bottom surface in the mounting hole is lower than the air pressure outside the mounting hole, including: the mounting hole is in a vacuum.

[0008] In some embodiments, the mounting hole also passes through the first bottom surface.

[0009] In some embodiments, the support member further has a first top surface opposite to the first bottom surface, wherein two ends of the mounting surface are respectively connected to the first bottom surface and the first top surface.

[0010] In some embodiments, a cross section of the mounting surface forms a regular polygonal structure.

[0011] In some embodiments, the light directing element is further configured to converge the light beam incident upon the light directing element.

[0012] In some embodiments, there are a plurality of mounting surfaces, the light directing elements correspond to the mounting surfaces one by one, and the inclination angles between each mounting surface and the first bottom surface are equal.

[0013] In some embodiments, at least a portion of the second bottom surface is configured as a reflective surface.

[0014] In some embodiments, the light directing element further includes a second top surface opposite the second bottom surface.

[0015] In some embodiments, the second top surface is configured to transmit the light beam, and the second bottom surface is configured to reflect the light beam.

[0016] In some embodiments, the second top surface is configured as a curved surface and converges, diverges or collimates the light beam.

[0017] In some embodiments, the top surface is configured to reflect the light beam.

[0018] In some embodiments, the top surface is configured as a plane; or the top surface is configured as a curved surface, and converges, diverges, or collimates the light beam.

[0019] In some embodiments, an area of ​​the mounting hole is smaller than an area of ​​the second bottom surface.

[0020] In some embodiments, the support is made of ceramic.

[0021] In a second aspect, an embodiment of the present application further provides a method for assembling a support assembly, comprising the following steps:

[0022] Providing a support member, the support member having a bottom surface and a mounting surface, the mounting surface being arranged obliquely relative to the bottom surface, and the support member being provided with a mounting hole, the mounting hole at least passing through the mounting surface;

[0023] Placing a plurality of light guiding elements on the mounting surface of the support member in a one-to-one correspondence and covering the mounting holes;

[0024] Performing a vacuum treatment on the mounting hole so that the light directing element is pre-positioned on the support member;

[0025] Glue is applied between the light directing element and the supporting member to fix them, and the vacuuming process is stopped.

[0026] In a third aspect, the embodiment of the present application further provides a light source device, comprising: a support assembly as described above, a plurality of excitation light sources, and a wavelength conversion device. The excitation light source is used to emit excitation light toward the light-emitting element. The wavelength conversion device is used to receive the excitation light after being converged by the light-guiding element and convert it into stimulated light.

[0027] In some embodiments, the light source device further comprises: a tube shell and a light-transmitting upper cover. The light-transmitting upper cover is disposed on the tube shell and forms a closed space with the tube shell, the excitation light source and the supporting assembly are disposed in the closed space, and the excitation light reflected by the light-guiding element is incident on the wavelength conversion device through the light-transmitting upper cover.

[0028] The support assembly provided in the embodiment of the present application is provided with a mounting hole on the mounting surface of the support, and the light guiding element is provided on the mounting surface and covers the mounting hole. When the air pressure in the mounting hole of the second bottom surface of the light guiding element is lower than the air pressure outside the mounting hole, the light guiding element can be pre-fixed on the support, and then the support and the light guiding element are fixed by glue, thereby improving the accuracy of the setting position of the light guiding element, and further improving the reflection accuracy of the light guiding element. The assembly method of the support assembly provided in the embodiment of the present application is to first place the support on a vacuum platform, then place the light guiding element on the mounting surface of the support, and cover the mounting hole provided on the mounting surface, then vacuumize the mounting hole, so that the light guiding element is pre-positioned on the support, and then glue is fixed between the light guiding element and the support, and finally stop the vacuumization process, thereby improving the convenience of assembling the support assembly. The light source device applied to the above-mentioned support assembly improves the light output accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic structural diagram of a light source device provided in one embodiment of the present application is shown.

[0031] Figure 2 A structural schematic diagram of a support assembly provided in one embodiment of the present application is shown.

[0032] Figure 3 A schematic structural diagram of a support member in a support assembly provided in an embodiment of the present application is shown.

[0033] Figure 4A flow chart of an assembly method of a support assembly provided in one embodiment of the present application is shown.

[0034] Figure numerals: light source device 1, supporting assembly 10, supporting member 110, first bottom surface 111, first top surface 112, mounting surface 113, mounting hole 113a, light directing element 120, second bottom surface 121, excitation light source 20, wavelength conversion device 30, tube shell 40, bottom plate 410, side plate 420, light-transmitting upper cover 50. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is only a part of the implementation mode of the present invention, not all the implementation modes. Based on the implementation mode of the present invention, all other implementation modes obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

[0037] Surface Mount Devices (SMD) lasers are widely used in consumer electronics, automotive electronics, medical equipment, etc. due to their small size. The more advanced the field, the higher the precision requirement for the light source device, and the precision of the light source device mainly depends on the installation precision of the light guiding element.

[0038] However, in the existing support assembly, the light guiding element is very easy to move during the installation process due to its small size, resulting in low installation accuracy of the light guiding element, which not only affects the convenience of supporting assembly installation, but also affects the light output accuracy of the light source device.

[0039] Based on the above technical problems, the present application proposes a light source device 1, see Figure 1 , Figure 1 The schematic diagram of the structure of a light source device 1 provided in an embodiment of the present application is shown, and the light source device 1 may include a support assembly 10, an excitation light source 20, and a wavelength conversion device 30. The excitation light source 20 may be used to emit a light beam, the support assembly 10 is used to change the traveling direction of the light beam emitted by the excitation light source 20, and the wavelength conversion device 30 may be used to convert the wavelength of the excitation light source 20 into another wavelength to meet subsequent use.

[0040] The embodiment of the present application does not limit the specific form of the excitation light source 20, for example, it can be a xenon lamp, an ultra-high pressure (UHP) mercury lamp, a laser diode (LD) lamp, a light-emitting diode (LED) lamp, a fiber laser, a laser crystal, etc. UHP mercury lamps and LED lamps have the characteristics of long life and can maintain good stability during long-term operation. Fiber lasers and laser crystals have high output power, and the lasers they emit have high reliability and high efficiency, while the advantage of LD lamps is low cost. The specific form of the excitation light source 20 can be selected according to actual needs and is not limited here. The embodiment of the present application also does not limit the specific structure of the wavelength conversion device 30. The wavelength conversion device 30 can be a grating wavelength meter, a spectrometer, a color wheel, etc., which is not limited here. It can be set according to actual conditions. For example, in this embodiment, the wavelength conversion device 30 can use a phosphor sheet, which has high conversion efficiency and compact structure, and has the characteristics of strong selectivity and good stability, which helps to maintain good stability during long-term use, thereby improving the light output accuracy of the light source device 1. In a more specific embodiment, the phosphor sheet can be composed of a matrix, an activator, a luminescent layer, a functional layer, etc. The matrix is ​​the base of the phosphor, usually some low-energy compounds, such as silicates, oxides, etc. The function of the matrix is ​​to provide a stable environment for the activator and a reflective interface for the excitation light. The activator and the luminescent layer can be arranged on the matrix. The activator is a key component for the luminescence of the phosphor, usually some compounds with high energy states, such as alkali metals, alkaline earth metal halides, etc. The luminescent layer is the luminescent area of ​​the phosphor, usually a mixture of an activator and a matrix in a certain proportion. The thickness and proportion of the luminescent layer have a great influence on the luminescent properties of the phosphor.

[0041] The functional layer can be an electron transport layer, a hole transport layer, a protective layer, etc. The electron transport layer is usually made of materials with high conductivity and thermal stability, such as oxides, nitrides, etc. The function of the electron transport layer is to transfer excited electrons to the light-emitting layer, thereby generating fluorescence. The hole transport layer is usually made of materials with high thermal stability and chemical stability, such as nitrides, silicides, etc. The function of the hole transport layer is to transfer holes in the light-emitting layer to the light-emitting layer, thereby achieving light emission. The protective layer is usually made of materials with high thermal stability and chemical stability, such as silicides, nitrides, etc. The function of the protective layer is to protect the phosphor from environmental factors and extend the service life of the phosphor.

[0042] It should be noted that the embodiments of the present application do not limit the specific structure and composition of the phosphor sheet, and the user can select a suitable phosphor sheet according to actual needs.

[0043] See also Figure 2 , Figure 2 The structure diagram of a support assembly 10 provided in one embodiment of the present application is shown, and the support assembly 10 may include: a support member 110 and a light guiding element 120. The light guiding element 120 may be disposed on the support member 110, and is used to guide the traveling direction of the light beam emitted by the excitation light source 20, for example, it may be used to reflect the traveling direction of the light beam incident to the light guiding element 120.

[0044] For details, please refer to Figure 2 In this embodiment, the support member 110 is a table-shaped structure. The support member 110 may have a first bottom surface 111 and a mounting surface 113. Each mounting surface 113 may be inclined relative to the first bottom surface 111, and a mounting hole 113a is provided on the support member 110. The mounting hole 113a at least passes through the mounting surface 113. It should be noted that only one mounting surface 113 may be provided. Providing multiple mounting surfaces 113 is conducive to improving the brightness of the light source device 1.

[0045] In this embodiment, the support member 110 also has a first top surface 112 opposite to the first bottom surface 111, and the two ends of the mounting surface 113 can be respectively connected to the first bottom surface 111 and the first top surface 112. At this time, the support member 110 can be a step or a structure similar to a step. Such a structural setting of the support member 110 is conducive to improving the structural stability of the support member 110.

[0046] In some other embodiments, the support member 110 can also be set to a conical structure, etc. In this case, the support member 110 can only have a first bottom surface 111 and a mounting surface 113. It should be noted that the embodiment of the present application does not limit the specific structure of the support member 110, and the specific structure can be selected according to actual conditions.

[0047] See also Figure 3 , Figure 3 The structure diagram of the support member 110 in the support assembly 10 provided in an embodiment of the present application is shown. It should be noted that the embodiment of the present application does not limit the specific structure, size, etc. of the mounting hole 113a. For example, the mounting hole 113a can be a mounting hole 113a with a circular cross-section, a mounting hole 113a with a square cross-section, etc., or a mounting hole 113a with an irregular cross-section, etc., and can be specifically set according to actual conditions.

[0048] The embodiment of the present application does not limit the specific shapes of the first bottom surface 111, the first top surface 112 and the mounting surface 113. For example, the first top surface 112, the first top surface 112 and the mounting surface 113 can all be regular polygons. For example, the first bottom surface 111, the first top surface 112 and the mounting surface 113 can all be squares. For example, the first bottom surface 111 and the first top surface 112 can be regular triangles, and the mounting surface 113 can be a square. There is no limitation here and the specific selection can be made according to the actual situation.

[0049] In addition, in order to facilitate the production of the support member 110 and to more efficiently install the support member 110 and the light guiding element 120, the first bottom surface 111 and the first top surface 112 can be arranged in parallel, and further, the shapes and sizes of the plurality of mounting surfaces 113 can be arranged as a consistent structure, so that the light guiding elements 120 can be installed in batches and quickly, without distinguishing the specific orientation of the mounting surfaces 113, and without making an additional one-to-one correspondence between each mounting surface 113 and each light guiding element 120, so as to simplify the assembly of the support member 110 and the light guiding element 120. Furthermore, in one embodiment, the cross-sections of the plurality of mounting surfaces 113 form a regular polygon structure.

[0050] Also, see Figure 1 and Figure 2 , the inclination angle between each mounting surface 113 and the first bottom surface 111 can be set to be equal, for example, the inclination angle of the mounting surface 113 relative to the first bottom surface 111 can be between 30°-60°, for example, it can be 30°, 38°, 45°, 60°, etc., which is not limited here, and can be set according to actual conditions. It can be understood that if the inclination angle between the mounting surface 113 and the first bottom surface 111 is too small, when the light emitting direction of the excitation light source 20 is parallel to the mounting surface 113, it will cause the width of the support member 110 in the light emitting direction of the excitation light source 20 (the X direction in the figure) to be too large, which is not conducive to the miniaturization of the entire support assembly 10. Similarly, if the inclination angle between the mounting surface 113 and the first bottom surface 111 is too large, when the light emitting direction of the excitation light source 20 is parallel to the mounting surface 113, it will cause the width of the support member 110 perpendicular to the light emitting direction of the excitation light source 20 (the Y direction in the figure) to be too large, which is not conducive to the miniaturization of the entire support assembly 10.

[0051] In addition, different types of light guiding elements 120 will also affect the above-mentioned inclination angle. Due to the different types of light guiding elements 120, the emission angle of the light beam after each light guiding element 120 reflects the light beam is also different. Since the size of the wavelength conversion device is limited, the above-mentioned inclination angle is controlled within a certain range to ensure that multiple light guiding elements can guide light emitted from different directions to the same position on the wavelength conversion device.

[0052] It should be noted that the embodiment of the present application does not limit the material of the support member 110, for example, it can be made of metal, alloy, plastic, wood, rubber, ceramic and other materials. Preferably, in the present embodiment, the support member 110 can be made of ceramic material. Since the thermal expansion coefficient and stability of ceramic are good, the support member 110 can maintain good stability and is not easy to deform under the long-term irradiation of the excitation light source 20. Therefore, the support member 110 is made of ceramic material, which can further improve the light guiding accuracy of the support assembly 10. Specifically, the support member 110 can be made of composite ceramics such as zirconium oxide-based composite ceramics, aluminum oxide-based composite ceramics, etc., or thermal barrier ceramics such as thermal barrier coating ceramics, thermal barrier insulation ceramics, etc., which are not limited here and can be selected according to actual conditions.

[0053] Please continue reading Figure 2 The light directing element 120 has a second bottom surface 121, which can be disposed on the mounting surface 113 and covers the mounting hole 113a. The second bottom surface 121 covers the mounting hole 113a when the air pressure inside the mounting hole 113a is less than the air pressure outside the mounting hole 113a. Specifically, the second bottom surface 121 can abut against the mounting surface 113, and the second bottom surface 121 completely covers the mounting hole 113a. The light directing element 120 can be used to reflect the light beam incident on the light directing element 120.

[0054] It should be noted that the embodiment of the present application does not limit the above-mentioned method of achieving that the air pressure of the second bottom surface 121 in the mounting hole 113a is lower than the air pressure outside the mounting hole 113a. For example, a vacuum operation may be performed inside the mounting hole 113a to make the air pressure of the second bottom surface 121 in the mounting hole 113a lower than the air pressure outside the mounting hole 113a.

[0055] In some embodiments, the mounting hole 113a may also penetrate the first bottom surface 111, which may make it easier to evacuate the mounting hole 113a and further reduce the air pressure in the mounting hole 113a.

[0056] In this embodiment, at least part of the second bottom surface 121 is set as a reflective surface. The embodiment of the present application does not limit the specific formation method of the second bottom surface 121 of the light guiding element 120, and it can be selected according to actual conditions. For example, it can be polishing, polishing one surface of the light guiding element 120 to a mirror state, and specifically polishing can be performed by using tools and materials such as abrasives, sandpaper, and polishing paste to make the surface have a high reflectivity to form the second bottom surface 121; for another example, it can also be coating, coating one surface of the light guiding element 120 with a layer of material such as metal, glass, plastic, etc. with high reflectivity to form the second bottom surface 121; for another example, it can also be surface treatment, changing the properties of one surface of the light guiding element 120 by chemical or physical methods to make it have a higher reflectivity to form the second bottom surface 121. For example, a layer of film with high reflectivity can be formed on one surface of the light guiding element 120 by anodizing, electroplating, spraying, etc.

[0057] It should be noted that the present application does not limit the specific structure of the light directing element 120 , which may be, for example, a hemispherical lens, a reflector, etc.

[0058] For details, please refer to Figure 2 The area of ​​the mounting hole 113a is smaller than the area of ​​the second bottom surface 121, so that the light directing element 120 can completely cover the mounting hole 113a, thereby facilitating the vacuum operation of the mounting hole 113a, and facilitating the light directing element 120 and the support member 110 to be fixed by gluing after vacuuming.

[0059] In this embodiment, multiple light guiding elements 120 can be provided. It should be noted that the embodiment of the present application does not limit the number of light guiding elements 120, and can be specifically set according to actual conditions and actual needs. For example, there are 4 light guiding elements 120 in the figure. Multiple light guiding elements 120 can be used to reflect light beams incident on each light guiding element 120 from different directions, and converge in front of the first top surface 112. The front here can be understood as a certain area on the side of the first top surface 112 away from the first bottom surface 111. The light beams reflected by the multiple light guiding elements 120 will converge in this area. The embodiment of the present application does not limit the specific position, shape, and size of this area.

[0060] Furthermore, in some embodiments, the light directing element 120 may further include a second top surface 122 opposite to the second bottom surface 121 , and the second top surface 122 may be configured to transmit the light beam so that the light beam entering the light directing element 120 can be smoothly emitted.

[0061] It should be noted that the embodiment of the present application does not limit the specific structure of the second top surface 122. For example, the second top surface 122 can be a straight surface or a curved surface. When the second top surface 122 is set to a curved surface, the second top surface 122 can also be used to converge, diverge or collimate light beams to improve the functional diversity of the light guiding element 120. The specific setting can be based on actual needs and is not limited here.

[0062] In addition, in this embodiment, the second top surface 122 can be used to transmit the light beam or to reflect the light beam, which is not limited here and can be limited according to actual conditions.

[0063] Specifically, in one embodiment, the light directing element 120 may be a reflector, which has the advantages of high reflectivity, high optical quality, free design of curved surface, and low cost compared to reflective beads, reflective ribbons, etc. It should be noted that the embodiment of the present application does not limit the specific type of the reflector, for example, it may be a plane reflector or a curved reflector.

[0064] The plane mirror has the characteristics of good reflection effect, clear imaging and simple structure. At the same time, because the light beam is incident on the plane mirror vertically, the propagation direction and incident angle of the light beam can be guaranteed, and thus the plane mirror can ensure the stability of imaging.

[0065] Curved mirrors have the characteristics of high precision and low dispersion. At the same time, they can shape the light beam. Curved mirrors can shape the incident light beam into the required shape, such as circle, ellipse, etc. In addition, curved mirrors can reduce the size of optical components while maintaining optical performance, thereby reducing the weight and cost of the optical system.

[0066] It is understood that when the light directing element 120 is a plane reflector, the plane reflector can be directly attached to the mounting surface 113 and cover the mounting hole 113a. When the light directing element 120 is a curved reflector, the mounting hole 113a can extend to the edge of the mounting surface 113, for example Figure 3 As shown in , at this time, the height difference of the mounting hole 113a on the mounting surface 113 is more obvious, so as to facilitate the fitting of the curved reflector and the mounting surface 113.

[0067] In a more specific embodiment, the light directing element 120 can be a hemispherical lens, which can also focus the spot of the light beam emitted by the excitation light source 20, so that the spot of the convergence point is smaller. When the laser beam is converged onto the wavelength conversion device 30, the central brightness of the light emitted by the wavelength conversion device 30 can be increased.

[0068] It should be noted that the embodiment of the present application does not limit the specific size of the hemispherical lens. The diameter of the second bottom surface 121 of the hemispherical lens can be between 0.5 mm and 2 mm. For example, the hemispherical lens can be a hemispherical lens with a second bottom surface 121 diameter of 1.0 mm. It is understandable that the size of the hemispherical lens should not be too large or too small. If the size of the hemispherical lens is too large, the overall volume of the support assembly 10 will increase, which is not conducive to the miniaturization of the support assembly 10. If the size of the hemispherical lens is too small, the size of the mounting hole 113a will be too small, which is not conducive to opening the support member 110, increasing the difficulty of manufacturing the support member 110, and further increasing the cost. It is understandable that in this embodiment, the second bottom surface 121 of the hemispherical lens is hollowed out because the mounting hole 113a is provided, which reduces the interference of the total reflection on the hemispherical lens and further improves the light output accuracy of the light emitting element 120 of the support assembly 10.

[0069] For further information, please refer again to Figure 1 In one implementation, the light source device 1 may further include: a tube shell 40 and a light-transmitting upper cover 50 .

[0070] The transparent upper cover 50 is disposed on the tube shell 40 and encloses a closed space with the tube shell 40 . The excitation light source 20 and the supporting assembly 10 are disposed in the closed space, and the excitation light reflected by the light directing element 120 passes through the transparent upper cover 50 and is incident on the wavelength conversion device 30 .

[0071] In this embodiment, the tube shell 40 may be a box-shaped structure, and the tube shell 40 may include a bottom plate 410 and a side plate 420 connected to the bottom plate. The bottom plate 410 may be a rectangular plate, and four side plates 420 may be provided, and the four side plates 420 are respectively connected to the four sides of the bottom plate 410. In a more specific embodiment, the shape and size of the side plates 420 may be set to a consistent structure to facilitate mold production. Further, the side plates 420 may be integrally formed with the bottom plate 410, which may simplify the installation of the tube shell 40. The tube shell 40 may be made of plastic material, which has low cost and good insulation, or may be made of metal material, which has good chemical corrosion resistance and high strength. The specific selection may be made according to actual conditions, and no limitation is made here.

[0072] The light-transmitting upper cover 50 may also be a rectangular plate structure. The light-transmitting upper cover 50 may be covered on the side plate 420. In some embodiments, the light-transmitting upper cover 50 may be slightly larger than the size of the bottom plate 420, so as to ensure that the light-transmitting upper cover can completely enclose the tube shell 40, avoid the external environment from affecting the support assembly 10 disposed inside the tube shell 40, and thus ensure the normal operation of the support assembly 10. The light-transmitting upper cover 50 may be made of materials such as glass lens, plastic lens, and metal lens. The glass lens has a high refractive index and low dispersion, but the glass lens is heavy and fragile. The plastic lens is relatively light, but the refractive index and dispersion performance are relatively low. The metal lens has a higher refractive index and lower dispersion, and can provide high-resolution and high-quality images. However, the manufacturing cost of the metal lens is relatively high, and it can be selected according to the actual situation, and is not limited here.

[0073] The embodiment of the present application does not limit the connection method between the transparent upper cover and the tube shell 40. For example, it can be a detachable connection such as bonding or snapping, which makes it easier to inspect and repair the support assembly 10 set in the closed space.

[0074] For details, please continue to refer to Figure 1 In this embodiment, the plane of the inner surface of the bottom plate 410 in the tube shell 40 can be parallel to the first top surface 112 and the first bottom surface 111 of the support member 110, and the excitation light source 20 can also be placed on the inner surface of the bottom plate 410 in the tube shell 40 and located on one side of the support assembly 10, which can simplify the internal structure of the light source device 1 to facilitate the assembly of the light source device 1.

[0075] Please also see Figure 1 and Figure 4 The embodiment of the present application also provides an assembly method of the support assembly 10. Figure 4 A flow chart of an assembly method of a support assembly 10 provided in an embodiment of the present application is shown. The method may include the following steps:

[0076] S110: Provide a support member, wherein the support member has a bottom surface and a mounting surface, the mounting surface is inclined relative to the bottom surface, and a mounting hole is provided on the support member, and the mounting hole at least passes through the mounting surface.

[0077] S120: placing a light directing element on the mounting surface of the support member and covering the mounting hole.

[0078] In some examples, a plurality of light guiding elements are provided, and the plurality of light guiding elements are placed one-to-one on the mounting surface of the support member. The above-mentioned one-to-one correspondence does not refer to a specific relationship, and it can be understood that one mounting hole 113a corresponds to one light guiding element 120. In this step, the light guiding element 120 can be positioned with the aid of an external device so that it is located at a specified position to ensure the accuracy of the light beam emission direction after the light guiding element 120 reflects the excitation light beam.

[0079] S130: performing a vacuum process on the mounting hole so that the light directing element is pre-positioned on the supporting member.

[0080] It can be understood that after the mounting hole 113a is vacuumed, the light directing element 120 is fixed on the support member 110. At this time, if the position of the light directing element 120 does not reach the expected position, the previous step can be repeated until the reflective element reaches the expected position. This can improve the fault tolerance when assembling the support component 10.

[0081] S140: Apply glue to fix the light directing element 120 and the support member, and stop the vacuum process.

[0082] After the light directing element 120 is located at the expected position, glue can be dispensed between the light directing element 120 and the support member, and specifically, glue can be dispensed at the connection between the light directing element 120 and the support member to prevent the glue from covering too much area on the light directing element 120, and to prevent the influence of the glue from changing the path of the light beam after it is emitted from the light directing element 120. It can be understood that the embodiment of the present application does not limit the glue, for example, ultraviolet light curing glue, epoxy resin glue, etc. can be used. When the glue solidifies, that is, when the light directing element 120 and the support member are tightly connected, the vacuuming process can be stopped to complete the assembly between the light directing element 120 and the support member.

[0083] The support assembly 10 provided in the embodiment of the present application, by setting a mounting hole 113a on the mounting surface 113 of the support member 110, and setting the light guiding element 120 on the mounting surface 113 and covering the mounting hole 113a, when the air pressure on the second bottom surface 121 of the light guiding element 120 in the mounting hole 113a is lower than the air pressure outside the mounting hole 113a, the light guiding element 120 can be pre-fixed on the support member 110, and then the support member 110 and the light guiding element 120 are fixed by glue, thereby improving the accuracy of the setting position of the light guiding element 120, and then improving the reflection accuracy of the light guiding element 120. The assembly method of the support assembly 10 provided in the embodiment of the present application first places the support 110 on a vacuum platform, then places a plurality of light guiding elements 120 one by one on the mounting surface 113 of the support 110, and covers the mounting holes 113a provided on the mounting surface 113, then vacuumizes the mounting holes 113a, so that the light guiding elements 120 are pre-positioned on the support 110, then glue is applied between the light guiding elements 120 and the support 110 to fix them, and finally stops the vacuumization process, thereby improving the convenience of assembling the support assembly 10. The light source device 1 applied to the above-mentioned support assembly 10 improves the light output accuracy.

[0084] In the present invention, unless otherwise clearly specified or limited, the terms "installation", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a transmission connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as a specific reference or special structure. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present invention and the features of the different embodiments or examples without contradiction.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A support assembly, characterized in that: include: A support member, wherein the support member has a first bottom surface and a mounting surface, each of the mounting surfaces is arranged obliquely relative to the first bottom surface, and the support member is provided with a mounting hole, and the mounting hole at least passes through the mounting surface; as well as A light directing element, wherein the light directing element has a second bottom surface, the second bottom surface is arranged on the mounting surface and covers the mounting hole, wherein the second bottom surface covers the mounting hole when the air pressure inside the mounting hole is less than the air pressure outside the mounting hole, and the light directing element is used to change the traveling direction of the light beam incident on the light directing element.

2. The support assembly according to claim 1, characterized in that: The air pressure of the second bottom surface in the mounting hole is lower than the air pressure outside the mounting hole, which includes: the mounting hole is in a vacuum.

3. The support assembly according to claim 1, characterized in that: The mounting hole also passes through the first bottom surface.

4. The support assembly according to claim 1, characterized in that: The support member further has a first top surface opposite to the first bottom surface, wherein two ends of the mounting surface are respectively connected to the first bottom surface and the first top surface.

5. The support assembly according to claim 1, characterized in that: The cross section of the mounting surface forms a regular polygonal structure.

6. The support assembly according to claim 1, characterized in that: The light directing element is further used to converge the light beam incident to the light directing element.

7. The support assembly according to claim 1, characterized in that: There are a plurality of mounting surfaces, the light guiding elements correspond to the mounting surfaces one by one, and the inclination angles between each mounting surface and the first bottom surface are equal.

8. The support assembly according to claim 1, characterized in that: At least a portion of the second bottom surface is configured as a reflective surface.

9. The support assembly according to claim 1, characterized in that: The light directing element also includes a second top surface opposite the second bottom surface.

10. The support assembly according to claim 9, characterized in that The second top surface is configured to transmit the light beam, and the second bottom surface is configured to reflect the light beam.

11. The support assembly according to claim 10, characterized in that The second top surface is configured as a curved surface and converges, diverges or collimates the light beam.

12. The support assembly according to claim 9, characterized in that The second top surface is configured to reflect the light beam.

13. The support assembly according to claim 12, characterized in that The second top surface is set as a plane; or the second top surface is set as a curved surface, and converges, diverges or collimates the light beam.

14. The support assembly according to claim 1, characterized in that The area of ​​the mounting hole is smaller than the area of ​​the second bottom surface.

15. The support assembly according to claim 1, characterized in that The support member is made of ceramic.

16. A method for assembling a support assembly, characterized in that: The following steps are involved: Providing a support member, the support member having a bottom surface and a mounting surface, the mounting surface being arranged obliquely relative to the bottom surface, and the support member being provided with a mounting hole, the mounting hole at least passing through the mounting surface; Placing a light directing element on the mounting surface of the support member and covering the mounting hole; Performing a vacuum treatment on the mounting hole so that the light directing element is pre-positioned on the support member; Applying glue between the light directing element and the supporting member for fixing; Stop the vacuum process.

17. A light source device, characterized in that: include: An excitation light source, used for emitting excitation light; A wavelength conversion device, used to convert at least part of the excitation light into a stimulated light; as well as The supporting assembly according to any one of claims 1 to 15 is arranged on the optical path of the excitation light, and the light directing element is used to change the traveling direction of the excitation light to point to the wavelength conversion device.

18. The light source device according to claim 17, characterized in that: The light source device further comprises: Tube shell; and A light-transmitting upper cover is arranged on the tube shell and forms a closed space with the tube shell. The excitation light source and the supporting assembly are arranged in the closed space, and the excitation light reflected by the light-guiding element passes through the light-transmitting upper cover and is incident on the wavelength conversion device.

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