Light source device and projector

Abstract

A light source device (3) is provided with: a housing member (10) having a first opening (11), a connection port (12), and a second opening (13), the first opening (11) and the connection port (12) being aligned in a first direction and being opened in opposite directions to each other, the second opening (13) being opened in a second direction orthogonal to the first direction; a first light source unit (20) that blocks the first opening and emits light toward the connection port in the first direction; a second light source unit (30) that blocks the second opening and emits light toward the inside of the housing member in the second direction; a mirror (40) that reflects light from the second light source unit toward the connection port; a lens (50) that blocks the connection port and condenses light from the first light source unit and the second light source unit; a pressing member (60) that presses the lens from the inside toward the outside of the housing member; and a mounting member (70) that holds the mirror on the inside of the housing member. The pressing member is held by the mounting member. The mounting member is fixed to the housing member.

Description

Technical Field

[0001] This disclosure relates to light source devices and projectors. Background Technology

[0002] Patent Document 1 discloses a light source device comprising: a light source section; a lens for focusing light emitted from the light source section; and a holding member for holding the lens.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2020-042147 Utility Model Content

[0006] The problem to be solved by the utility model

[0007] However, in a light source device, there exists a structure comprising two light sources that emit light toward a lens from different positions and a reflector that reflects light emitted from one of the light sources. In such a light source device, by reflecting light emitted from one of the light sources through the reflector, the light is combined with light emitted from the other light source and then incident on the lens.

[0008] In such light source devices, dust prevention measures and miniaturization of the light source device are required.

[0009] This invention was made in view of the above circumstances, and its purpose is to provide a light source device that can achieve miniaturization and dustproof measures for the light source, as well as a projector equipped with the light source device.

[0010] Methods for solving problems

[0011] The first embodiment of this utility model is a light source device comprising: a housing member having a first opening, a connection port, and a second opening, wherein the first opening and the connection port open in opposite directions along a first straight line and are arranged in the first straight line direction, and the second opening opens in a second straight line direction intersecting the first straight line direction; a first light source unit configured to block the first opening, emitting light along the first straight line direction toward the connection port; a second light source unit configured to block the second opening, emitting light along the second straight line direction toward the inner side of the housing member; a reflector configured on the inner side of the housing member, reflecting light emitted from the second light source unit toward the connection port; a lens configured to block the connection port, allowing light from the first light source unit and the second light source unit to pass through and be focused; a pressing member configured on the inner side of the housing member, pressing the lens from the inner side of the housing member toward the outer side, so that the lens blocks the connection port; and a mounting member configured on the inner side of the housing member and holding the reflector. The pressing member is held in place by the mounting member. The mounting member is fixed to the housing member.

[0012] The second aspect of this utility model is a projector equipped with the aforementioned light source device.

[0013] Utility Model Effect

[0014] According to this utility model, it is possible to achieve miniaturization of the light source device and dust prevention measures for the light source. Attached Figure Description

[0015] Figure 1 This is a perspective view showing the appearance of a projector according to one embodiment of the present invention.

[0016] Figure 2 This is a perspective view of a light source device representing one embodiment of the present invention.

[0017] Figure 3 It means Figure 2 A cross-sectional view of the light source device.

[0018] Figure 4 It is Figure 2 A three-dimensional cutaway view of a portion of the light source device.

[0019] Figure 5 It is a different perspective. Figure 4 A three-dimensional view of the light source device.

[0020] Figure 6 yes Figure 2 An exploded perspective view of the light source device.

[0021] Figure 7It indicates composition Figures 2-6 A cross-sectional view of the housing components of the light source device.

[0022] Figure 8 It will constitute Figures 2-6 A three-dimensional view of a section of the housing component of the light source device.

[0023] Figure 9 It shows the composition Figures 2-6 A three-dimensional view of the lens, mounting components, and pressing components of the light source device.

[0024] Figure 10 It is shown in Figure 9 An exploded perspective view of the pressing component being removed from the mounting components.

[0025] Figure 11 It is shown in Figures 2-6 A cross-sectional view of the light source device in which the mounting components are assembled into the housing components.

[0026] Figure 12 It is shown in Figures 2-6 A cross-sectional view of the light source device in which the pressing member is assembled to the housing member via the mounting member.

[0027] Figure 13 This is a cross-sectional view showing the housing components of a light source device constituting another embodiment of the present invention. Detailed Implementation

[0028] The following is for reference Figures 1-12 One embodiment of this utility model will be described.

[0029] Figure 1 The projector 1 shown in this embodiment is a device that projects image light (image) onto a display surface such as a projection screen. The projector 1 includes a light source device 3, an image light forming device (not shown), a projection device 5, and a housing 7. The housing 7 houses the light source device 3, the image light forming device, and the projection device 5.

[0030] The image light forming apparatus generates image light based on the light output from the light source device 3 described later. Although not shown, the optical engine includes a DMD (Digital Micromirror Device), a liquid crystal panel, and other light modulation elements, as well as electronic components for controlling the light modulation elements.

[0031] The projection device 5 amplifies the image light output from the image light forming device and projects it onto a display surface such as a projection screen.

[0032] Figures 2-6The light source device 3 shown is configured such that a reflector 40 is used to combine the light emitted from two light source units 20 and 30, and a lens 50 is used to focus the combined light. The light source device 3 includes a housing member 10, a first light source unit 20, a second light source unit 30, a reflector 40, a lens 50, a pressing member 60, and a mounting member 70.

[0033] like Figure 7 , Figure 8 As shown, the housing member 10 has a first opening 11, a connection port 12, and a second opening 13. The first opening 11 and the connection port 12 open in opposite directions in a first straight direction and are arranged in the first straight direction. The second opening 13 opens in a second straight direction that intersects the first straight direction. In this embodiment, the second straight direction is orthogonal to the first straight direction.

[0034] exist Figures 2 to 12 In this diagram, the Z-axis represents the first straight line direction, and the X-axis represents the second straight line direction. Additionally, the Y-axis represents the direction orthogonal to both the first and second straight line directions (the third straight line direction).

[0035] like Figure 7 , Figure 8 As shown, the housing member 10 of this embodiment is formed as a square tube with the first straight direction as its axial direction. Viewed axially from the housing member 10, the first opening 11 is formed as a rectangle corresponding to the square tube shape of the housing member 10. Viewed axially from the housing member 10, the connection port 12 is formed to connect with the lens 50 described later (see reference). Figures 3-6 The circle corresponding to ).

[0036] Viewed from the first straight line direction, the circular connection opening 12 is smaller than the rectangular first opening 11. Therefore, the edge 121 of the connection opening 12 (the outer part of the connection opening 12) has an edge surface 14 facing the first opening 11 in the first straight line direction.

[0037] The edge surface 14 of the edge portion 121 located at the connection port 12 is located on both sides of the connection port 12 in an orthogonal direction orthogonal to the first straight line direction (such as the X-axis direction or Y-axis direction orthogonal to the Z-axis direction). (See reference for details) Figure 7 The dimensions of the edge surfaces 14 on both sides of the connection port 12 in this orthogonal direction are equal. Furthermore, the center of the circular connection port 12 is located on the axis of the cylindrical shell member 10.

[0038] The edge 14 of the housing member 10 has a mounting member 70 (described later) that supports the housing member 10. Figures 3-6The support region 14A is located in the first straight direction at a position away from the connection port 12 towards the first opening 11. That is, the support region 14A is located closer to the first opening 11 than other regions of the flange 14, and there is a step between the support region 14A and other regions. In this embodiment, the support region 14A is located at the four corners of the flange 14, which has a rectangular shape when viewed from the axial direction.

[0039] A plurality of positioning holes 141 are provided in the support region 14A of the housing member 10. The positioning holes 141 are located in... Figure 8 Only one is shown in the figure, but there are actually two. Furthermore, the number of positioning holes 141 can be three or more. Multiple housing positioning pins 76 of the mounting member 70 (described later) are inserted into the multiple positioning holes 141 respectively (see Figure 141). Figure 9 , Figure 10 ).

[0040] Viewed from the second straight line direction, the second opening 13 of the housing member 10 is formed as a rectangle, the same as the first opening 11. The first side of the rectangular second opening 13 extends along the first straight line direction (axial direction of the housing member 10), and the second side of the second opening 13, which is orthogonal to the first side, extends along the third straight line direction (Y-axis direction).

[0041] The size of the second opening 13 in the first straight direction is smaller than the size of the shell member 10, but the difference in their sizes is small.

[0042] An extension cylindrical portion 16 is integrally formed on the housing member 10, extending outward from its connection port 12. The extension cylindrical portion 16 is formed into a cylindrical shape corresponding to the circular connection port 12 with the first straight line direction as the axial direction. When viewed from the first straight line direction, the cylindrical extension cylindrical portion 16 is smaller than the square cylindrical housing member 10 and is housed inside the housing member 10.

[0043] like Figures 3-5 As shown, the first light source unit 20 is configured to block the first opening 11 of the housing member 10. The first light source unit 20 emits light towards the connection port 12 along a first linear direction (positive Z-axis direction). Figure 3 In the diagram, arrow LD1 indicates the direction of light travel emitted from the first light source unit 20. The first light source unit 20 includes a light source section 100 that emits light and a heat dissipation section 21 having a mounting surface 22a on which the light source section 100 is mounted.

[0044] In this embodiment, the first light source unit 20 has multiple (in Figure 6 (There are 6 light sources in the middle) 100. For example... Figure 3 , Figure 4 , Figure 6As shown, each light source unit 100 includes a substrate 101 and a light-emitting element 102 mounted on the substrate 101. The light-emitting element 102 may be, for example, an LED (Light Emitting Diode), but in this embodiment it is a laser diode. The light-emitting element 102 in this embodiment emits laser light in the blue wavelength range. That is, the light source unit 100 in this embodiment is a laser substrate. The number of light-emitting elements 102 included in the light source unit 100 can be as follows: Figure 4 , Figure 6 Two are shown, but this is not the only one.

[0045] like Figure 3 , Figure 4 , Figure 6 As shown, the mounting surface 22a of the heat dissipation portion 21 in the first light source unit 20 is formed to be generally flat. In the example shown, the area around the light source portion 100 in the mounting surface 22a is located at a higher position than other areas (the area where the light source portion 100 is mounted), but it is not limited to this.

[0046] The substrate 101 of the light source section 100 is disposed on the mounting surface 22a of the heat dissipation section 21. The substrate 101 may be in direct contact with the mounting surface 22a, but for example, thermally conductive grease may be placed between the substrate 101 and the mounting surface 22a to improve the heat transfer from the substrate 101 to the heat dissipation section 21.

[0047] With the light source 100 placed on the mounting surface 22a, the light generated in the light-emitting element 102 of the light source 100 is mainly directed away from the mounting surface 22a (in the example shown, the positive Z-axis direction).

[0048] The area of ​​the mounting surface 22a is set to be relatively small to consider the heat dissipation efficiency of the heat dissipation unit 21 on the light source unit 100. In other words, the ratio of the area occupied by the multiple light source units 100 to the area of ​​the mounting surface 22a is set to be larger.

[0049] like Figure 2 , Figure 3 , Figure 6 As shown, the heat dissipation part 21 of the first light source unit 20 has a base part 22 including a mounting surface 22a, an extended heat dissipation part 23, and a rear heat dissipation part 24.

[0050] The base portion 22 is formed as a plate with the thickness direction along the Z-axis. The base portion 22 is made of a highly conductive material such as copper.

[0051] The extended heat dissipation section 23 extends from both ends of the base section 22 in a third linear direction (Y-axis direction) along the mounting surface 22a. Alternatively, the extended heat dissipation section 23 may extend only from one end of the base section 22 in the third linear direction. The extended heat dissipation section 23 is configured to dissipate heat by allowing air to flow relative to it in a direction orthogonal to the mounting surface 22a (first linear direction; Z-axis direction).

[0052] Specifically, the extended heat dissipation section 23 includes a heat pipe 231 and a plurality of heat sinks 232 mounted on the heat pipe 231. The heat pipe 231 extends from the end of the base section 22 along a third linear direction. In this embodiment, the heat pipe 231 passes through the base section 22 in the third linear direction and extends from both ends of the base section 22. A plurality of these heat pipes 231 are arranged in a second linear direction (X-axis direction).

[0053] like Figure 2 , Figure 6 As shown, the multiple heat sinks 232 of the extended heat dissipation section 23 are each formed as plates with the thickness direction of the extension direction (Y-axis direction) of the heat pipe 231. The multiple heat sinks 232 are arranged at intervals along the third straight direction on both sides of the base section 22. The heat pipe 231 is mounted to the multiple heat sinks 232 in such a way that it passes through the heat sink 232 in its thickness direction.

[0054] In the extended heat dissipation section 23 configured in this way, air can flow between the multiple heat sinks 232 in a first linear direction (Z-axis direction).

[0055] like Figure 3 , Figure 4 As shown, the back heat dissipation portion 24 has a plurality of heat dissipation fins 241 disposed on the back surface 22b of the base portion 22 facing the side opposite to the mounting surface 22a. The back surface 22b of the base portion 22 is substantially parallel to the mounting surface 22a.

[0056] Multiple heat sinks 241 are each formed as plates with a thickness direction along a third straight line (Y-axis direction) along the back surface 22b of the base portion 22. Furthermore, each heat sink 241 extends along a second straight line (X-axis direction) along the back surface 22b of the base portion 22. The multiple heat sinks 241 are arranged at intervals along the third straight line, similar to the heat sinks 232 of the extended heat dissipation portion 23.

[0057] These multiple heat sinks 241 extend from both ends of the base portion 22 in the second linear direction. Thus, air can pass through in the first linear direction (Z-axis direction) on both sides of the base portion 22 in the second linear direction, allowing air to pass between the multiple heat sinks 241 of the rear heat sink portion 24. Alternatively, the multiple heat sinks 241 may extend from only one end of the base portion 22 in the second linear direction, for example.

[0058] The heat dissipation section 21 of the first light source unit 20, configured as described above, serves to cool the light source section 100 of the first light source unit 20. Specifically, the heat generated in the light source section 100, which is placed on the mounting surface 22a of the first light source unit 20, is transferred to the base section 22 and then mainly to the heat pipe 231 and the plurality of heat sinks 232 of the extended heat dissipation section 23. Furthermore, by causing air to flow between these plurality of heat sinks 232 in a first linear direction (Z-axis direction), specifically by causing air to flow in the positive Z-axis direction, the heat transferred from the light source section 100 to the plurality of heat sinks 232 of the extended heat dissipation section 23 is dissipated.

[0059] Additionally, some of the heat transferred to the base portion 22 is also transferred to the plurality of heat sinks 241 of the rear heat dissipation portion 24. Furthermore, by causing air to flow between the plurality of heat sinks 241 of the rear heat dissipation portion 24 in a first linear direction (Z-axis direction), specifically by causing air to flow as... Figure 3 As shown by arrow FD1, the heat transferred from the light source 100 to the multiple heat sinks 241 of the rear heat sink 24 is dissipated.

[0060] like Figure 3 , Figure 4 As shown, the edge 111 of the first opening 11 of the housing member 10 is in close contact with the area surrounding the light source portion 100 in the mounting surface 22a of the first light source unit 20 (the surrounding area). Although not shown, an elastic body such as an O-ring is provided on the edge 111 of the first opening 11. By pressing this elastic body against the surrounding area of ​​the mounting surface 22a, the edge 111 of the first opening 11 can be tightly attached to the surrounding area of ​​the mounting surface 22a without gaps.

[0061] With the first light source unit 20 assembled on the housing member 10 as described above, as indicated by arrow LD1, the light emitted from the first light source unit 20 travels from the first opening 11 of the housing member 10 toward the connection port 12 along a first straight line.

[0062] The housing member 10 is configured to be adjacent to the first light source unit 20 in the first linear direction (Z-axis direction). However, the housing member 10 is formed not to extend outward (in the positive X-axis direction and Y-axis direction) from the edge of the mounting surface 22a of the heat dissipation portion 21 of the first light source unit 20. As a result, the housing member 10 can be used to suppress the flow of air passing between the multiple heat sinks 232, 241 of the extended heat dissipation portion 23 and the rear heat dissipation portion 24 from the back surface 22b side of the base portion 22 toward the mounting surface 22a side (in the positive Z-axis direction) around the base portion 22.

[0063] like Figures 3-5As shown, the second light source unit 30 is configured to block the second opening 13 of the housing member 10. The second light source unit 30 emits light toward the inside of the housing member 10 along a second straight line direction (positive X-axis direction). The second light source unit 30, like the first light source unit 20, has a light source section 100 for emitting light and a heat dissipation section 31 having a mounting surface 321a for mounting the light source section 100.

[0064] In this embodiment, the second light source unit 30 has multiple (in Figure 6 There are three light source units 100 in the second light source unit 30. The structure of each light source unit 100 is the same as that of the first light source unit 20. However, the light source unit 100 of the second light source unit 30 is a laser substrate that emits laser light in the red band.

[0065] like Figure 3 , 4 As shown in Figures 6 and 7, the mounting surface 321a of the heat dissipation portion 31 in the second light source unit 30 is formed to be generally flat. In the example shown, the area around the light source portion 100 in the mounting surface 321a is located at a higher position than other areas (the area where the light source portion 100 is mounted), but it is not limited to this.

[0066] In the second light source unit 30, the light source unit 100 is arranged on the mounting surface 321a of the heat dissipation unit 31 in the same way as in the first light source unit 20. The light generated in the light-emitting element 102 of the light source unit 100 mounted on the mounting surface 321a is mainly directed away from the mounting surface 321a (in the example shown, the positive X-axis direction).

[0067] like Figure 2 , Figure 3 , Figure 6 As shown, the heat dissipation section 31 of the second light source unit 30 has a main heat dissipation section 32 including a mounting surface 321a, a heat pipe 34, and an extended heat dissipation section 33.

[0068] The main heat dissipation section 32 has a plate-shaped main body base section 321 and a plurality of heat dissipation fins 322 extending from the base section 22. The main body base section 321 is formed of a plate-shaped material with high conductivity, such as copper, with the thickness direction in the X-axis direction.

[0069] Multiple heat sinks 322 are disposed on the back surface 321b of the main body base portion 321, which faces the side opposite to the mounting surface 321a. The back surface 321b of the main body base portion 321 is substantially parallel to the mounting surface 321a. The multiple heat sinks 322 are each formed as plates with a thickness direction along a third straight line (Y-axis direction) of the back surface 321b of the main body base portion 321, and are arranged at intervals in the third straight line direction.

[0070] The heat pipe 34 of the second light source unit 30 extends from the end of the main body base portion 321 along a third linear direction. In this embodiment, the heat pipe 34 passes through the main body base portion 321 in the third linear direction and extends from both ends of the base portion 22. Multiple heat pipes 34 are arranged in the first linear direction (X-axis direction).

[0071] like Figure 2 , Figure 6 As shown, the extended heat dissipation section 33 of the second light source unit 30 is disposed on both sides of the main heat dissipation section 32 in the third straight line direction. Alternatively, the extended heat dissipation section 33 may be disposed only on one side of the main heat dissipation section 32 in the third straight line direction. The extended heat dissipation section 33 is thermally connected to the main heat dissipation section 32 via a heat pipe 34.

[0072] The extended heat dissipation section 33 has a plate-shaped extended base section 331 and a plurality of heat dissipation fins 332 extending from the extended base section 331. The extended base section 331 is also formed as a plate with the thickness direction in the X-axis direction, just like the main base section 321. A heat pipe 34 extending from the end of the main heat dissipation section 32 passes through the extended base section 331.

[0073] Multiple heat sinks 332 of the extended heat dissipation section 33 are disposed on the back side of the extended base section 331, which faces the same side as the back side 321b of the main base section 321. The multiple heat sinks 332, like the heat sinks 322 of the main base section 321, are each formed as a plate with the thickness direction in the third straight line direction, and are arranged at intervals in the third straight line direction.

[0074] The heat dissipation section 31 of the second light source unit 30, configured as described above, serves to cool the light source section 100 of the second light source unit 30. Specifically, the heat generated in the light source section 100, which is placed on the mounting surface 321a of the main body base section 321 of the main body heat dissipation section 32, is transferred to the main body base section 321 and then to the plurality of heat sinks 322 of the main body heat dissipation section 32. In addition, it is transferred to the extended base section 331 and the plurality of heat sinks 332 of the extended heat dissipation section 33 via the heat pipe 34. Furthermore, by allowing air to flow between these plurality of heat sinks 322 and 332 in a first linear direction (Z-axis direction), specifically in the positive Z-axis direction, the heat transferred from the light source section 100 of the second light source unit 30 to the plurality of heat sinks 322 and 332 is dissipated.

[0075] like Figure 3 , Figure 4As shown, the edge 131 of the second opening 13 of the housing member 10 is in close contact with the area surrounding the light source portion 100 in the mounting surface 321a of the second light source unit 30 (the surrounding area). Although not shown, an elastic body such as an O-ring is provided on the edge 131 of the second opening 13. By pressing this elastic body against the surrounding area of ​​the mounting surface 321a, the edge 131 of the second opening 13 can be tightly attached to the surrounding area of ​​the mounting surface 321a without gaps.

[0076] With the second light source unit 30 assembled into the housing member 10 as described above, as indicated by arrow LD2, the light emitted from the second light source unit 30 travels from the second opening 13 of the housing member 10 toward the inner side of the housing member 10 along a second straight direction (in... Figure 3 (The center is the positive X-axis direction) and it moves.

[0077] The housing member 10 is arranged adjacent to the second light source unit 30 in the second linear direction. Therefore, the airflow passing between the plurality of heat sinks 322, 332 of the heat dissipation section 31 of the second light source unit 30 is not obstructed by the housing member 10.

[0078] like Figures 3-5 As shown, the reflector 40 is disposed inside the housing member 10. Figure 3 As indicated by arrow LD2, the reflector 40 reflects the light emitted from the second light source unit 30 and directs it toward the connection port 12 of the housing member 10. The reflector 40 is disposed between the first opening 11 and the connection port 12 on the inner side of the housing member 10, but does not obstruct the light emitted from the first light source unit 20 and from the first opening 11 toward the connection port 12. Specifically, the multiple light source units 100 of the first light source unit 20 are arranged such that the light emitted from the multiple light source units 100 of the first light source unit 20 passes around the reflector 40. Through this reflector 40, the light emitted from the first light source unit 20 and the second light source unit 30 can be combined and directed toward the connection port 12 of the housing member 10.

[0079] The reflector 40 is mounted on the inside of the housing member 10 by means of the mounting member 70 described later.

[0080] like Figures 3-5 As shown, the lens 50 is configured to block the connection port 12 of the housing member 10 from the inside. The lens 50 allows light from the first light source unit 20 and the second light source unit 30 to pass through and is focused. The lens 50 is held in place at the connection port 12 of the housing member 10 by the pressing member 60 described later.

[0081] like Figures 3-5 , Figure 11 , Figure 12As shown, the pressing member 60 is disposed inside the housing member 10. The pressing member 60 is assembled to the housing member 10 by means of the mounting member 70 described later. The pressing member 60 presses the lens 50 from the inside to the outside of the housing member 10 such that the lens 50 blocks the connection port 12 of the housing member 10. Specifically, the pressing member 60 presses the lens 50 against the edge 121 of the connection port 12 of the housing member 10.

[0082] like Figure 9 , Figure 10 As shown, the pressing member 60 is capable of elastic flexural deformation and has a mounting portion 61 and an extension portion 62.

[0083] The assembly part 61 is the portion of the pressing member 60 that is assembled to the opposite surface 72a side of the mounting member 70, which will be described later. Figure 5 , 9 As shown in Figure 10, viewed from the first straight-line direction, the mounting portion 61 is formed in an annular shape surrounding the lens 50. The mounting portion 61 is arranged such that it faces the edge surface 14 of the edge portion 121 of the connection port 12 in the first straight-line direction. In this embodiment, the mounting portion 61 is formed such that it faces the edge surface 14 in the first straight-line direction, excluding the support area 14A (see reference 10). Figure 7 , Figure 8 Other areas besides these are relative.

[0084] The extension 62 extends toward the lens 50 in the first straight direction by extending toward the inside of the annular mounting portion 61.

[0085] In this embodiment, the pressing member 60 is formed as a plate with the axial direction of the assembled part 61 as the thickness direction, and can be elastically flexed and deformed in this thickness direction.

[0086] In the aforementioned pressing member 60, the lens 50 can be pressed against the edge 121 of the connection port 12 of the housing member 10 as follows: With the lens 50 positioned to block the connection port 12 of the housing member 10, the assembly portion 61 of the pressing member 60 is brought close to the edge surface 14 of the edge 121 of the connection port 12 in the first linear direction, thereby pressing the extension portion 62 of the pressing member 60 against the lens 50, and the pressing member 60 elastically flexes and deforms. Furthermore, the elastic force of the elastically deformed pressing member 60 presses the lens 50 from the inside of the housing member 10 toward the edge 121 of the connection port 12.

[0087] like Figures 3-5 As shown, the mounting member 70 is disposed inside the housing member 10, holding the reflector 40 and the pressing member 60 together. The mounting member 70 is fixed to the housing member 10. The mounting member 70 will be described in detail below.

[0088] like Figures 3-5 , Figure 9 , Figure 10 As shown, the mounting member 70 has a first mounting portion 71 for mounting the reflector 40 and a second mounting portion 72 for mounting the pressing member 60. The first mounting portion 71 and the second mounting portion 72 are integrally formed and are arranged sequentially in a first linear direction from the first opening 11 of the housing member 10 toward the connection port 12 (positive Z-axis direction). The mounting member 70 is fixed to the housing member 10 by assembling the second mounting portion 72 to the edge 121 of the connection port 12.

[0089] Viewed from the first straight line direction, the second assembly portion 72 is formed in an annular shape corresponding to the annular edge surface 14 (edge ​​portion 121) of the housing member 10. The second assembly portion 72 has a facing surface 72a that faces the edge portion 121 of the connection port 12 in the first straight line direction. The assembly portion 61 of the aforementioned pressing member 60 is assembled on the facing surface 72a side of the mounting member 70. Hereinafter, the assembly structure of the pressing member 60 relative to the second assembly portion 72 will be described.

[0090] like Figure 9 , Figure 10 As shown, the second mounting portion 72 has a protrusion 73 protruding from the opposing surface 72a in a first linear direction (positive Z-axis direction). The second mounting portion 72 has a plurality of these protrusions 73 (eight in the example shown). The mounting portion 61 of the pressing member 60 is supported on the ends of the plurality of protrusions 73. Therefore, the pressing member 60 is positioned at a distance from the opposing surface 72a.

[0091] The plurality of protrusions 73 include a fixing protrusion 73A and a positioning protrusion 73B. The fixing protrusion 73A is a protrusion used to fix the pressing member 60 to the second assembly portion 72 by threaded fastening. A first fixing screw 91 for fixing the pressing member 60 to the second assembly portion 72 is fitted to the fixing protrusion 73A. The positioning protrusion 73B is a protrusion used to position the pressing member 60 relative to the second assembly portion 72. A positioning pin 731 is provided at the end of the positioning protrusion 73B, which inserts into the assembled portion 61 of the pressing member 60.

[0092] The second assembly 72 has a plurality of housing positioning pins 76 protruding from the opposing surface 72a in a first linear direction (positive Z-axis direction). The plurality of housing positioning pins 76 are respectively inserted into a plurality of positioning holes 141 that open in the support region 14A of the housing member 10. That is, the number of housing positioning pins 76 corresponds to the number of positioning holes 141 in the housing member 10.

[0093] Mounting component 70 is fixed to housing component 10 as follows.

[0094] like Figure 11As shown, the opposing surface 72a of the second mounting portion 72 is brought into contact with the support region 14A in the edge surface 14 of the housing member 10, thereby supporting the mounting member 70 in the support region 14A. Furthermore, after the second fixing screw 92 is inserted into the second mounting portion 72 from the first opening 11 side, it is fitted into the forming portion of the support region 14A in the edge 121 of the connection port 12, thereby connecting and fixing the second mounting portion 72 to the edge surface 14 of the housing member 10.

[0095] like Figure 11 , Figure 12 As shown, with the mounting member 70 fixed to the housing member 10, the protrusion 73 of the second assembly portion 72 is located in a position that does not interfere with the support region 14A. Therefore, the end of the protrusion 73 is located in the first straight direction closer to the connection port 12 than the support region 14A, opposite to other areas of the edge surface 14.

[0096] In the first linear direction, the length obtained by adding the protruding length of the protrusion 73 to the thickness of the assembly portion 61 of the pressing member 60 supported at the end of the protrusion 73 is shorter than the distance from the support region 14A to other regions of the flange 14 (the height of the support region 14A). As a result, when the mounting member 70 is supported by the support region 14A of the flange 14, a gap is formed between the assembly portion 61 at the end of the protrusion 73 supported on the mounting member 70 and other regions of the flange 14.

[0097] Furthermore, with the mounting member 70 fixed to the housing member 10, the pressing member 60 (see reference) assembled to the mounting member 70... Figure 5 , Figure 9 The elastic force of the lens 50 presses it from the inside of the housing member 10 against the edge 121 of the connection port 12. Thus, the lens 50 is held in the connection port 12 of the housing member 10.

[0098] like Figures 3-5 , Figure 10 , Figure 11 As shown, a through hole 75 is formed in the mounting member 70, which is used to allow light emitted from the first light source unit 20 and the second light source unit 30 to pass through without obstruction.

[0099] In the light source device 3 of this embodiment, light passing through the lens 50 provided at the connection port 12 of the housing member 10 is emitted to the outside from the opening at the end of the extension tube 16 connected to the connection port 12 of the housing member 10. The opening at the end of the extension tube 16 can, for example, be fitted with the image light forming apparatus described above. In this embodiment, an optical system unit (not shown) of the light source device 3 is fitted at the opening at the end of the extension tube 16. The optical system unit appropriately processes the light (blue light, red light) from the light source unit 100 and emits white light to the image light forming apparatus.

[0100] In the light source device 3 and the projector 1 including the light source device 3 of this embodiment, the pressing member 60 is mounted to the housing member 10 via the mounting member 70 that holds the reflector 40. Therefore, compared to the case where the pressing member 60 and the mounting member 70 are respectively mounted on the housing member 10, the size of the housing member 10 can be reduced. To explain this, when the pressing member 60 and the mounting member 70 are separately mounted on the housing member 10, the size of the housing member 10 becomes larger because mounting portions for the pressing member 60 and the mounting member 70 need to be provided on the housing member 10 respectively. In contrast, when the pressing member 60 is held on the mounting member 70, only the mounting portion for the mounting member 70 is provided on the housing member 10, and the mounting portion for the pressing member 60 is not required. As a result, the size of the housing member 10 can be reduced. Therefore, miniaturization of the light source device can be achieved.

[0101] Furthermore, the two light source units 20 and 30 block the first opening 11 and the second opening 13 of the housing member 10, and the lens 50 blocks the connection port 12 of the housing member 10, thereby effectively suppressing dust from entering the inside of the housing member 10. This prevents dust from adhering to the light source units 20 and 30 (especially the light-emitting element 102 that emits light). In other words, dust prevention measures for the light source units 20 and 30 are also achieved.

[0102] Furthermore, since the first light source unit 20 and the second light source unit 30 can be covered by the housing member 10, which is composed of a single component, dust can be effectively prevented from entering the inside of the housing member 10 compared to the case where multiple components are combined to form the housing member 10.

[0103] Furthermore, by simply positioning the mounting member 70, which holds the pressing member 60, relative to the housing member 10 in the second and third linear directions, the pressing member 60 and the lens 50 disposed in its connection port 12 can be easily positioned in these second and third linear directions.

[0104] Furthermore, in the light source device 3 and projector 1 of this embodiment, the edges 111 and 131 of the first and second openings 11 and 13 of the housing member 10 are in close contact with the mounting surfaces 22a and 321a of the heat dissipation portions 21 and 31 of each light source unit 20 and 30, respectively. As a result, dust intrusion into the inner side of the housing member 10 can be more effectively suppressed.

[0105] Furthermore, in the light source device 3 and projector 1 of this embodiment, the mounting member 70 is connected and fixed to the aforementioned edge surface 14 based on the assembly of the annular mounting portion 61 of the pressing member 60 to the opposing surface 72a side of the mounting member 70 opposite to the edge surface 14 of the edge portion 121 of the connection port 12. In this state, the pressing member 60 elastically flexes and deforms, and the extension portion 62 of the pressing member 60 presses the lens 50 against the edge portion 121 of the connection port 12 by the elastic force of the pressing member 60. Thus, even if the area of ​​the edge surface 14 of the edge portion 121 of the connection port 12 is too small to connect and fix both the pressing member 60 and the mounting member 70 to the edge surface 14 of the edge portion 121 of the connection port 12, the lens 50 can still be reliably pressed against the edge portion 121 of the connection port 12 by the pressing member 60, and the lens 50 blocks the connection port 12.

[0106] Furthermore, in the light source device 3 and projector 1 of this embodiment, the dimensions of the edge surfaces 14 located on both sides of the connection port 12 in an orthogonal direction orthogonal to the first straight line direction are equal. Therefore, the middle of the mounting member 70 in the orthogonal direction can be easily aligned with the middle of the connection port 12 in the orthogonal direction (i.e., the axis of the connection port 12). As a result, the positioning of the pressing member 60 relative to the lens 50 in the orthogonal direction can be easily performed.

[0107] Furthermore, in the light source device 3 and projector 1 of this embodiment, the support region 14A of the support mounting member 70 located on the edge 121 of the connection port 12 of the housing member 10 and on the edge surface 14 facing the first opening 11 is positioned in the first linear direction away from the connection port 12 towards the first opening 11. Therefore, the position where the mounting member 70 is threadedly fixed to the housing member 10 can be close to the first opening 11. Thus, even if the housing member 10 is relatively long in the first linear direction, the mounting member 70 can be easily threadedly fastened to the housing member 10.

[0108] Furthermore, in the light source device 3 and projector 1 of this embodiment, the pressing member 60 is supported on the end of a protrusion 73 that protrudes from the opposite surface 72a of the mounting member 70. Therefore, in the first linear direction, the mounting member 70 is arranged overlapping the support area 14A of the edge surface 14 of the edge 121 of the connection port 12, so that even if the opposite surface 72a of the mounting member 70 is located away from the connection port 12 and the lens 50, the pressing member 60 can be positioned near the connection port 12 and the lens 50. That is, the lens 50 can be pressed against the edge 121 of the connection port 12 using the pressing member 60 held on the mounting member 70.

[0109] Furthermore, in the light source device 3 and projector 1 of this embodiment, when the pressing member 60 is supported on the end of the protrusion 73 of the mounting member 70 and the mounting member 70 is supported on the support area 14A of the rim surface 14, a gap is formed between the assembled portion 61 supported on the end of the protrusion 73 of the mounting member 70 and other areas of the rim surface 14. Therefore, even if the first fixing screw 91 is assembled to the fixing protrusion 73A with the pressing member 60 sandwiched between it and the fixing protrusion 73A in the protrusion 73, it is possible to prevent the head of the first fixing screw 91 from contacting other areas of the rim surface 14.

[0110] Furthermore, in the light source device 3 and projector 1 of this embodiment, a plurality of housing positioning pins 76 protruding from the opposing surface 72a of the mounting member 70 are respectively inserted into a plurality of positioning holes 141 that open in the support region 14A of the edge surface 14 of the housing member 10. Therefore, in an orthogonal direction orthogonal to the first linear direction, the mounting member 70 can be easily aligned relative to the housing member 10. Thus, in the orthogonal direction, the center of the pressing member 60 held in the mounting member 70 can be easily aligned relative to the connection port 12 of the housing member 10 and the center of the lens 50 assembled in the connection port 12.

[0111] Furthermore, in the light source device 3 and projector 1 of this embodiment, when viewed from the first straight line direction, the size of the first opening 11 of the housing member 10 is larger than the connection port 12. As a result, the lens 50 can be easily inserted into the inside of the housing member 10 through the first opening 11, and assembled in such a way that the connection port 12 is blocked from the inside of the housing member 10.

[0112] Furthermore, in the light source device 3 and projector 1 of this embodiment, the size of the first opening 11 of the housing member 10 is larger than the connection port 12, thereby allowing the size of the extension tube 16 connected to the connection port 12 to be smaller than the housing member 10. Therefore, when air passing through the heat dissipation sections 21 and 31 of the first and second light source units 20 and 30 for cooling the light source unit 100 passes through the outside of the extension tube 16 in a direction orthogonal to the first linear direction (e.g., the second and third linear directions), the obstruction of airflow by the extension tube 16 can be suppressed. In addition, in this embodiment, the extension tube 16 is formed in a cylindrical shape, thus allowing air to flow smoothly on the outside of the extension tube 16. Therefore, the light source unit 100 can be efficiently cooled by allowing air to flow smoothly within the heat dissipation sections 21 and 31 of the first and second light source units 20 and 30.

[0113] The embodiments of this utility model have been described above, but this utility model is not limited to the above embodiments and can be appropriately modified without departing from its spirit.

[0114] In this invention, the positioning hole 141 of the housing member 10 is not limited to opening in the support region 14A of the rim 14, but may also open in other regions of the rim 14.

[0115] In this invention, the mounting member 70 may, for example, not have the protrusion 73. That is, the pressing member 60 may be fitted onto the opposite surface 72a of the mounting member 70.

[0116] In this invention, the support area 14A of the support mounting member 70 in the edge surface 14 of the edge portion 121 of the connection port 12 may, for example, be located at a position that does not leave the connection port 12.

[0117] In this utility model, for example, Figure 13 As shown, the extended cylindrical portion 16 of the above embodiment may not be integrally formed with the housing member 10 (see reference). Figure 7 That is, the connection port 12 of the shell component 10 can also open to the outside.

[0118] Label Explanation

[0119] 1. Projector

[0120] 3. Light source device

[0121] 10 Shell Components

[0122] 11 First Opening

[0123] 111 The edge of the first opening 11

[0124] 12 connection ports

[0125] 121 Edge of connector 12

[0126] 13 Second opening

[0127] 131 The edge of the second opening 13

[0128] 14 Edge

[0129] 14A Support Area

[0130] 141 Positioning Hole

[0131] 20 First Light Source Unit

[0132] 21 Heat dissipation section

[0133] 30 Second Light Source Unit

[0134] 31 Heat dissipation section

[0135] 40 reflectors

[0136] 50 lens

[0137] 60 Pressing component

[0138] 61 Assembled Part

[0139] 62 Extension

[0140] 70 Installation components

[0141] 71 First Assembly Section

[0142] 72 Second Assembly Section

[0143] 72a Opposite face

[0144] 73 protrusions

[0145] 76 Housing locating pin

Claims

1. A light source apparatus, characterized by comprising: At least comprising: a housing member having a first opening, a connecting port, and a second opening, the first opening and the connecting port being opened in opposite directions in a first linear direction and being arranged in the first linear direction, the second opening being opened in a second linear direction intersecting the first linear direction; a first light source unit configured to block the first opening and emit light toward the connecting port along the first linear direction; a second light source unit configured to block the second opening and emit light toward an inner side of the housing member along the second linear direction; a mirror configured on the inner side of the housing member to reflect light emitted from the second light source unit and direct the light toward the connecting port; a lens configured to block the connecting port and transmit and condense light from the first light source unit and the second light source unit; a pressing member configured on the inner side of the housing member to press the lens from the inner side of the housing member toward the outer side so that the lens blocks the connecting port; and a mounting member configured on the inner side of the housing member and holding the mirror, the pressing member is held by the mounting member, the mounting member is fixed to the housing member, the pressing member includes at least a ring-shaped fitted portion that is elastically deformable and is fitted to an opposite surface side of the mounting member opposite to a rim of the connecting port in the first linear direction, and an extension portion that is opposite to the lens in the first linear direction by extending to the inner side of the fitted portion, the mounting member is fixed to a rim surface in an inner surface of the housing member opposite to the opposite surface and located at the rim of the connecting port.

2. The light source device according to claim 1, wherein the first light source unit and the second light source unit each include at least a light source portion that emits light, and a heat dissipation portion having a placement surface on which the light source portion is placed, a rim of the first opening of the housing member is in close contact with a region around the light source portion in the placement surface of the first light source unit, and a rim of the second opening of the housing member is in close contact with a region around the light source portion in the placement surface of the second light source unit.

3. The light source device according to claim 1, wherein a support region of the mounting member in the rim surface at the rim of the connecting port is located at a position away from the connecting port toward the first opening in the first linear direction.

4. The light source device according to claim 3, wherein the mounting member has a protrusion protruding from the opposite surface, the pressing member is supported by a tip end of the protrusion.

5. The light source device according to claim 4, wherein in a state where the pressing member is supported by the tip end of the protrusion of the mounting member and the mounting member is supported by the support region of the rim surface, a gap is formed between the pressing member and another region of the rim surface in the first linear direction.

6. The light source device according to claim 1, wherein ​ The mounting member has a plurality of housing positioning pins protruding from the opposite surface, A plurality of positioning holes are formed in the rim surface of the housing member, and the plurality of housing positioning pins are inserted into the plurality of positioning holes, respectively.

7. The light source device according to claim 1, wherein The rim surface of the rim portion of the connection port is located on both sides of the connection port in a direction orthogonal to the first linear direction, The sizes of the rim surfaces located on both sides of the connection port in the orthogonal direction are equal to each other.

8. The light source device according to claim 1 or 2, wherein The first opening is larger than the connection port in size when viewed from the first linear direction.

9. A projector including a light source device, wherein The light source device includes at least: a housing member having a first opening, a connection port, and a second opening, the first opening and the connection port being opened in opposite directions in a first linear direction and being arranged in the first linear direction, the second opening being opened in a second linear direction intersecting the first linear direction; a first light source unit arranged so as to block the first opening, the first light source unit emitting light toward the connection port in the first linear direction; a second light source unit arranged so as to block the second opening, the second light source unit emitting light toward the inside of the housing member in the second linear direction; a mirror arranged inside the housing member, the mirror reflecting light emitted from the second light source unit and directing the light toward the connection port; a lens arranged so as to block the connection port, the lens transmitting and condensing light from the first light source unit and the second light source unit; a pressing member arranged inside the housing member, the pressing member pressing the lens from the inside of the housing member toward the outside so that the lens blocks the connection port; and a mounting member arranged inside the housing member and holding the mirror, the pressing member is held by the mounting member, the mounting member is fixed to the housing member, the pressing member includes at least: a ring-shaped fitted portion elastically deformable, the fitted portion being fitted to an opposite surface side of the mounting member opposite the rim portion of the connection port in the first linear direction; and an extension portion opposite the lens in the first linear direction by extending to the inside of the fitted portion, the mounting member is fixed to a rim surface in an inner surface of the housing member, the rim surface being located in the rim portion of the connection port and opposite the opposite surface.

10. The projector according to claim 9, wherein the first light source unit and the second light source unit each include at least: a light source portion emitting light; and a heat dissipation portion having a placement surface on which the light source portion is placed, a rim portion of the first opening of the housing member is in close contact with a region around the light source portion in the placement surface of the first light source unit, a rim portion of the second opening of the housing member is in close contact with a region around the light source portion in the placement surface of the second light source unit.

Images