Light source device and display device

Abstract

This invention relates to a light source device and a display device, with the aim of suppressing the enlargement of light source devices. The light source device includes multiple light-emitting portions including first and second light-emitting portions; a first wavelength conversion region including a first wavelength conversion region, a first wavelength conversion component receiving first wavelength light from the first light-emitting portion and emitting second wavelength light; a second wavelength conversion component including a second wavelength conversion region, receiving first wavelength light from a second light-emitting portion and emitting second wavelength light; a first optical component that focuses the first wavelength light from the first light-emitting portion onto the first wavelength conversion component and guides the first and second wavelength light from the first wavelength conversion component; a second optical component that focuses the first wavelength light from the second light-emitting portion onto the second wavelength conversion component and guides the first and second wavelength light from the second wavelength conversion component; and a light combining component that combines the first and second wavelength light, wherein the central axes of the first and second optical components overlap, and the central axes of the first and second wavelength conversion components overlap.

Description

Technical Field

[0001] This invention relates to light source devices and display devices. Background Technology

[0002] Existing light source devices have a wavelength conversion component that receives light from a light-emitting part and then emits light of a different wavelength than the light from that light-emitting part. Such light source devices can be used in display devices, such as projectors that display images on a screen.

[0003] For example, Patent Documents 1 and 2 disclose that the above-mentioned light source device has multiple light-emitting parts and multiple wavelength conversion components, guides light from multiple light-emitting parts to multiple wavelength conversion components, and the light emitted from the multiple wavelength conversion components after being guided by the light is combined by a light synthesis component and then emitted.

[0004] Patent Document 1: JP Patent No. 6283932

[0005] Patent Document 2: JP Patent No. 6783545

[0006] However, in the configurations disclosed in Patent Documents 1 and 2, since there is an optical system that guides light from the light-emitting part to a wavelength conversion component and guides light emitted from the wavelength conversion component to a light synthesis component, there is a problem of large-scale light source device. Summary of the Invention

[0007] The present invention is a technical solution proposed in view of the above-mentioned problems, and its purpose is to suppress the large-scale development of light source devices having multiple light-emitting parts and multiple wavelength conversion components.

[0008] One aspect of the present invention is a light source device comprising: a plurality of light-emitting portions, including at least a first light-emitting portion and a second light-emitting portion; a first wavelength conversion component, including a first wavelength conversion region for receiving light of a first wavelength from the first light-emitting portion and emitting light of a second wavelength different from the first wavelength; a second wavelength conversion component, including a second wavelength conversion region for receiving light of the first wavelength from the second light-emitting portion and emitting light of the second wavelength; a first optical component for converging light of the first wavelength from the first light-emitting portion onto the first wavelength conversion component and simultaneously guiding light of the first wavelength and the second wavelength from the first wavelength conversion component; a second optical component for converging light of the first wavelength from the second light-emitting portion onto the second wavelength conversion component and simultaneously guiding light of the first wavelength and the second wavelength from the second wavelength conversion component; and a light combining component for combining light of the first wavelength and the second wavelength respectively guided by the first optical component and the second optical component, wherein the central axis of the first optical component overlaps with the central axis of the second optical component, and the central axis of the first wavelength conversion component overlaps with the central axis of the second wavelength conversion component.

[0009] The advantage of this invention is that it can suppress the large-scale development of light source devices with multiple light-emitting parts and multiple wavelength conversion components. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the internal structure of the light source device according to the first embodiment.

[0011] Figure 2 Viewed from the first optical component Figure 1 A schematic diagram of the first wavelength conversion component of the light source device.

[0012] Figure 3 Viewed from the second optical component side Figure 1 A schematic diagram of the second wavelength conversion component of the light source device.

[0013] Figure 4 This is a cross-sectional view of the first retaining member of the first cooling member involved in the modified example.

[0014] Figure 5 This is a cross-sectional view of the second retaining member of the second cooling member involved in the modified example.

[0015] Figure 6 This is a diagram showing the internal structure of the display device according to the second embodiment. Detailed Implementation

[0016] The following describes in detail the embodiments of the present invention with reference to the accompanying drawings. Identical components in the drawings are labeled with the same symbols, and repeated descriptions are omitted where appropriate.

[0017] The embodiments shown below are examples of light source devices and display devices that specifically embody the inventive concept. The present invention is not limited to the embodiments shown below. Unless otherwise stated, the dimensions, materials, shapes, relative positions, etc., of the components described below are intended to clarify the scope of the invention and not to limit it. For ease of explanation, the size and positional relationships of the components shown in the drawings are sometimes exaggerated.

[0018] [First Implementation Method]

[0019] <Composition of the light source device 100>

[0020] Figure 1 This is a schematic diagram illustrating an example of the internal structure of the light source device 100 according to the first embodiment. The light source device 100 is a device that emits light source light L. The light source light L is used in display devices such as projectors that display images on a screen.

[0021] like Figure 1 As shown, the light source device 100 includes a first light-emitting unit 11, a first lens array 12, a first relay lens 13, a first beam splitter 14, a first optical component 15, a first wavelength conversion component 16, a first condensing lens 17, and a first light-diffusing component 18. The light source device 100 also includes a second light-emitting unit 21, a second lens array 22, a second relay lens 23, a second beam splitter 24, a second optical component 25, a second wavelength conversion component 26, a second condensing lens 27, and a second light-diffusing component 28. Furthermore, the light source device 100 includes a first holding component 10, a second holding component 20, a light combining component 30, and a supporting component 40.

[0022] The first light-emitting part 11 includes a plurality of semiconductor lasers arranged in two dimensions, each of which emits a first laser L11 toward the first lens array 12. The first laser L11 has a first wavelength corresponding to blue or ultraviolet light, and is capable of stimulating the first wavelength conversion region included in the first wavelength conversion component 16.

[0023] The first laser L11 emitted from the first light-emitting unit 11 passes through the first lens array 12 and becomes approximately parallel light before reaching the first relay lens 13. The first relay lens 13 includes lens 131 and lens 132. The first laser L11 passes through lens 131 and lens 132 and enters the first beam splitter 14. The first beam splitter 14 is a wavelength-selective reflector that reflects the first laser L11 having a first wavelength and allows light with wavelengths other than the first wavelength to pass through.

[0024] The first laser L11, reflected by the first beam splitter 14, reaches the first optical component 15, which includes lenses 151 and 152. The first optical component 15 focuses the first laser L11 from the first beam splitter 14 onto the first wavelength conversion component 16.

[0025] The first wavelength conversion component 16 includes a first wavelength conversion region and a first reflection region. The first wavelength conversion region receives a first laser L11 from the first optical component 15 and emits a first fluorescence L12 of a second wavelength different from the first wavelength. The first reflection region reflects the first laser L11. The first wavelength conversion component 16 emits the first fluorescence L12 through the first wavelength conversion region and simultaneously emits the first laser L11 through reflection from the first reflection region.

[0026] The first optical component 15 guides the first laser L11 and the first fluorescence L12 from the first wavelength conversion component 16 to the first condenser lens 17. The first condenser lens 17 then focuses the guided first laser L11 and the first fluorescence L12 onto the first reflective surface 301 of the light combining component 30 via the first light diffusion component 18. The first light diffusion component 18 includes a light diffusion surface that diffuses the first laser L11 and the first fluorescence L12 that have passed through it.

[0027] The second light-emitting part 21 includes a plurality of semiconductor lasers arranged in two dimensions, each of which emits a second laser L21 toward the second lens array 22. The second laser L21 has a first wavelength corresponding to blue or ultraviolet light, and is capable of stimulating the second wavelength conversion region included in the second wavelength conversion component 26.

[0028] The second laser L21 emitted from the second light-emitting unit 21 becomes approximately parallel light after passing through the second lens array 22 and reaches the second relay lens 23. The second relay lens 23 includes lens 231 and lens 232. The second laser L21 passes through lens 231 and lens 232 and enters the second beam splitter 24. The second beam splitter 24 is a wavelength-selective reflector that reflects the second laser L21 with a first wavelength and allows light with wavelengths other than the first wavelength to pass through.

[0029] The second laser L21, reflected by the second beam splitter 24, reaches the second optical component 25, which includes lenses 251 and 252. The second optical component 25 focuses the second laser L21 from the second beam splitter 24 onto the second wavelength conversion component 26.

[0030] The second wavelength conversion component 26 includes a second wavelength conversion region and a second reflection region. The second wavelength conversion region receives a second laser L21 from the second optical component 25 and emits a second fluorescence L22 with a second wavelength different from the first wavelength. The second reflection region reflects the second laser L21. The second wavelength conversion component 26 emits the second fluorescence L22 through the second wavelength conversion region and simultaneously reflects the second laser L21 through the second reflection region.

[0031] The second optical component 25 guides the second laser L21 and the second fluorescence L22 from the second wavelength conversion component 26 to the second condenser lens 27. The second condenser lens 27 then focuses the guided second laser L21 and the second fluorescence L22 onto the second reflective surface 302 of the light combining component 30 via the second light diffusion component 28. The second light diffusion component 28 includes a light diffusion surface that diffuses the second laser L21 and the second fluorescence L22 that have passed through it.

[0032] The light combining component 30 reflects diffused light from the first light diffusing component 18 using a first reflective surface 301 and reflects diffused light from the second light diffusing component 28 using a second reflective surface 302. In this way, the light combining component 30 combines a first laser L11, a first fluorescence L12, a second laser L21, and a second fluorescence L22. The light combining component 30 can be, for example, a right-angle prism, but is not limited to this; it is suitable as long as it can combine the first laser L11, the first fluorescence L12, the second laser L21, and the second fluorescence L22.

[0033] The light source device 100 can emit light synthesized by the light synthesis component 30 as light source L.

[0034] The first optical component 15 and the second optical component 25 have the same configuration. The first wavelength conversion component 16 and the second wavelength conversion component 26 have the same configuration. The axis passing through the center of the first optical component 15, i.e., the central axis 15c, overlaps with the axis passing through the center of the second optical component 25, i.e., the central axis 25c. The axis passing through the center of the first wavelength conversion component 16, i.e., the central axis 16c, overlaps with the axis passing through the center of the second wavelength conversion component 26, i.e., the central axis 26c.

[0035] The overlap of axes means that the axes are substantially consistent. "Substantially" in "substantially consistent" implies that deviations generally considered to be within the acceptable range of error are allowed. The same applies to the use of the term "approximately" below.

[0036] For example, if the planar shape of the first optical component 15 is approximately circular when viewed along a direction parallel to the central axis 15c of the first optical component 15, then the deviation in error between the central axis 15c of the first optical component 15 and the central axis 25c of the second optical component 25 is generally considered to be an axial deviation of less than ±1 / 5 of the maximum diameter of the first optical component 15. Similarly, if the planar shape is approximately circular when viewed along a direction parallel to the central axis 16c of the first wavelength conversion component 16, then the deviation in error between the central axis 16c of the first wavelength conversion component 16 and the central axis 26c of the second wavelength conversion component 26 is generally considered to be an axial deviation of less than ±1 / 5 of the diameter of the first wavelength conversion component 16.

[0037] The central axis 15c of the first optical component 15 is parallel to the central axis 16c of the first wavelength conversion component 16. The central axis 25c of the second optical component 25 is parallel to the central axis 26c of the second wavelength conversion component 26. "Parallel" between axes means that the axes are approximately parallel to each other.

[0038] The central axis 15c of the first optical component 15, the central axis 16c of the first wavelength conversion component 16, the central axis 25c of the second optical component 25, and the central axis 26c of the second wavelength conversion component 26 are in the same plane. "In the same plane" includes approximately in the same plane.

[0039] The first retaining member 10 holds the first optical component 15 and the first wavelength conversion component 16. The first retaining member 10 is a box-shaped component, the inner side of which can hold these components. The aforementioned components are fixedly held to the inner side of the first retaining member 10 by means of adhesive components or screw components, etc. The first retaining member 10 has an opening. The first retaining member 10 is mounted such that, relative to the support member 40, the first laser L11 and the first fluorescence L12 can be incident and emitted between the first retaining member 10 and the support member 40 through the opening.

[0040] The second holding member 20 holds the second optical component 25 and the second wavelength conversion component 26. The second holding member 20 is a box-shaped component whose interior can hold these components. The aforementioned components are fixedly held inside the second holding member 20 using adhesive or screw components, etc. The second holding member 20 has an opening. The second holding member 20 is mounted such that, relative to the support member 40, the second laser L21 and the second fluorescence L22 can be incident and emitted between the second holding member 20 and the support member 40 through this opening.

[0041] Support component 40 supports the first light-emitting part 11, the first lens array 12, the first relay lens 13, the first beam splitter 14, the first condensing lens 17, the first light-diffusing component 18, and the light-combining component 30. Support component 40 also supports the second light-emitting part 21, the second lens array 22, the second relay lens 23, the second beam splitter 24, the second condensing lens 27, and the second light-diffusing component 28.

[0042] The support member 40 is a box-shaped member that supports the aforementioned components on its inner side. The support member 40 has an opening between itself and the first holding member 10 for the first laser L11 and the first fluorescence L12 to enter or exit, and an opening between itself and the second holding member 20 for the second laser L21 and the second fluorescence L22 to enter or exit.

[0043] The first holding member 10 and the second holding member 20 are mounted on the support member 40 such that the central axis 15c of the first optical member 15 overlaps with the central axis 25c of the second optical member 25, and the central axis 16c of the first wavelength conversion member 16 overlaps with the central axis 26c of the second wavelength conversion member 26.

[0044] The light source device 100 may also have light-emitting parts other than the first light-emitting part 11 and the second light-emitting part 21. The first light-emitting part 11 and the second light-emitting part 21 are not limited to multiple semiconductor lasers; they may have a single semiconductor laser, or more than one light-emitting diode or other light-emitting parts that emit incoherent light. The light source device 100 does not necessarily need to include the first lens array 12, the first relay lens 13, the first condensing lens 17, the first light-diffusing component 18, the second lens array 22, the second relay lens 23, the second condensing lens 27, and the second light-diffusing component 28.

[0045] <The configuration surrounding the first wavelength conversion component 16 and the second wavelength conversion component 26>

[0046] The following describes an example of the configuration surrounding the first wavelength conversion component 16 and the second wavelength conversion component 26. Figure 2 Viewed from the first optical component 15 Figure 1 A schematic diagram of the first wavelength conversion component 16 of the light source device 100. Figure 3 Viewed from the second optical component 25 Figure 1 A schematic diagram of the second wavelength conversion component 26 of the light source device 100.

[0047] like Figure 2As shown, the first wavelength conversion component 16 includes a first wavelength conversion region 161 and a first reflection region 162 on a first rotating substrate 163. The first rotating substrate 163 has a generally circular shape when viewed from its normal direction and can be rotated around the central axis 16c of the first wavelength conversion component 16. In the plan view, both the first wavelength conversion region 161 and the first reflection region 162 are formed as part of the first wavelength conversion component 16 in an annular region.

[0048] The first wavelength conversion region 161 is a phosphor region that emits the first fluorescence L12 excited by the first laser L11. The first reflection region 162 reflects the first laser L11 converged by the first optical component 15, so that the first laser L11 received from the first optical component 15 is emitted without the first wavelength conversion.

[0049] The first optical component 15 is configured to illuminate the first laser L11 at a first irradiation point 150 on the first wavelength conversion region 161 and the first reflection region 162 of the first wavelength conversion component 16.

[0050] The first wavelength conversion component 16 can rotate around the central axis 16c to alternately exchange the first wavelength conversion region 161 and the first reflection region 162, and emit the first laser L11 and the first fluorescence L12 in a time-division manner.

[0051] The first passing line 160 passes through the center 160c of the first wavelength conversion component 16 and is orthogonal to the central axis 15c of the first optical component 15. The orthogonality to the central axis 15c of the first optical component 15 can be approximately orthogonal. In this embodiment, the first passing line 160 is approximately perpendicular to the Y-axis, which is parallel to the direction of gravity.

[0052] The first wavelength conversion component 16 may also include a fluorescent region that emits fluorescence at wavelengths different from the first and second wavelengths. The first wavelength conversion component 16 is not limited to rotational drive; it may also be driven by translation in a direction intersecting the central axis 16c, or it may not be driven at all. The planar shape of the first wavelength conversion component 16 is not limited to a generally circular shape; it may also be a generally elliptical shape, a generally polygonal shape, or the like.

[0053] like Figure 3 As shown, the second wavelength conversion component 26 includes a second wavelength conversion region 261 and a second reflection region 262 on the second rotating substrate 263. The second rotating substrate 263 has a generally circular shape when viewed from its normal direction and can be rotated about the central axis 26c of the second wavelength conversion component 26. In the plan view, the second wavelength conversion region 261 and the second reflection region 262 are both part of the second wavelength conversion component 26 formed as annular regions.

[0054] The second wavelength conversion region 261 is a phosphor region that emits the second fluorescence L22 excited by the second laser L21. The second reflection region 262 reflects the second laser L21 converged by the second optical component 25, so that the second laser L21 received from the second optical component 25 is emitted without being converted by the first wavelength.

[0055] The second optical component 25 is configured to illuminate the second laser L21 at a second irradiation point 250 on the second wavelength conversion region 261 and the second reflection region 262 of the second wavelength conversion component 26.

[0056] The second wavelength conversion component 26 can alternately exchange the second wavelength conversion region 261 and the second reflection region 262 by rotating around its central axis 26c, and emit the second laser L21 and the second fluorescence L22 in a time-division manner.

[0057] The second pass line 260 passes through the center 260c of the second wavelength conversion component 26 and is orthogonal to the central axis 25c of the second optical component 25. The orthogonality to the central axis 25c of the second optical component 25 can be approximately orthogonal. In this embodiment, the first pass line 260 is approximately perpendicular to the Y-axis, which is parallel to the direction of gravity.

[0058] In this embodiment, the first retaining member 10 has a generally axisymmetric shape about the first through line 160. The second retaining member 20 has a generally axisymmetric shape about the second through line 260.

[0059] The second wavelength conversion component 26 can also work in conjunction with the first wavelength conversion component 16, including a phosphor region that emits fluorescence at wavelengths other than the first and second wavelengths. The second wavelength conversion component 26, in conjunction with the first wavelength conversion component 16, is not limited to rotational drive; it can also be driven by translation in a direction intersecting the central axis 26c, or it may not be driven at all. The planar shape of the second wavelength conversion component 26 is not limited to a roughly circular shape; it can also work in conjunction with the first wavelength conversion component 16, and may be approximately elliptical, approximately polygonal, etc.

[0060] <The Function and Effect of the Light Source Device>

[0061] The function and effect of the light source device 100 are explained below.

[0062] Conventional light source devices have multiple light-emitting units and multiple wavelength conversion components. Light from the multiple light-emitting units is guided to the multiple wavelength conversion components, and the light emitted from the multiple wavelength conversion components is combined by a light combining component and then emitted. However, because this conventional configuration has multiple optical systems that guide light from the light-emitting units to the wavelength conversion components and light emitted from the wavelength conversion components to the light combining component, the distance between the multiple optical systems or the distance between the multiple wavelength conversion components becomes longer, which easily leads to the large size of the light source device.

[0063] Furthermore, optimizing the configuration and setup of multiple optical systems separately reduces development and design efficiency. Moreover, manufacturing components within multiple optical systems necessitates the creation of molds and other materials for these components, thus decreasing the manufacturing efficiency of the light source device.

[0064] In this embodiment, the central axis 15c of the first optical component 15 overlaps with the central axis 25c of the second optical component 25, and the central axis 16c of the first wavelength conversion component 16 overlaps with the central axis 26c of the second wavelength conversion component 26. This not only shortens the distance between the first optical component 15 and the second optical component 25, but also shortens the distance between the first wavelength conversion component 16 and the second wavelength conversion component 26, thereby suppressing the enlargement of the light source device 100.

[0065] The light source device 100 has a first holding member 10, a second holding member 20, and a support member 40. The first holding member 10 has an axisymmetric shape centered on a first through line 160, and the second holding member 20 has an axisymmetric shape centered on a second through line 260.

[0066] For example, by rotating the first holding member 10, which holds the first wavelength conversion member 16 and the first optical member 15, 180 degrees around the central axis 16c of the first wavelength conversion member 16, it becomes the same as the second holding member 20, which holds the second wavelength conversion member 26 and the second optical member 25. Thus, if the first holding member 10 is positioned in the second holding member 20, it can be used to emit fluorescence based on the second laser L21 from the second light-emitting unit 21. In other words, the first holding member 10, which holds the first wavelength conversion member 16 and the first optical member 15, can be used as a common unit capable of emitting fluorescence based on light from multiple light-emitting units, including the first light-emitting unit 11, the second light-emitting unit 21, etc.

[0067] For example, if the first holding member 10, which holds the first wavelength conversion member 16 and the first optical member 15, can be used as a common unit, then an optical system that simultaneously guides light from the light-emitting portion to a light-guiding light-combining member from the wavelength conversion member to a light-guiding light from the light-emitting portion does not need to be developed, designed, and manufactured separately. Therefore, this embodiment can improve the manufacturing efficiency of the light source device 100. With the improvement of manufacturing efficiency, the cost of the light source device 100 can be reduced.

[0068] In the light source device 100, a first laser L11 from the first light-emitting unit 11 excites the first wavelength conversion region 161 of the first wavelength conversion component 16, and a second laser L21 from the second light-emitting unit 21 excites the second wavelength conversion region 261 of the second wavelength conversion component 26. Therefore, compared to the case where the first light-emitting unit 11 and the second light-emitting unit 21 jointly excite a single wavelength conversion region, heat generation in the wavelength conversion region can be suppressed, and the reduction in wavelength conversion efficiency caused by the wavelength conversion component can be reduced. As a result, the light source device 100 can provide light emitting light L with high brightness.

[0069] Furthermore, in the light source device 100, the central axis 15c of the first optical component 15, the central axis 16c of the first wavelength conversion component 16, the central axis 25c of the second optical component 25, and the central axis 26c of the second wavelength conversion component 26 are located in the same plane. This not only shortens the distance between the first optical component 15 and the second optical component 25, but also shortens the distance between the first wavelength conversion component 16 and the second wavelength conversion component 26, thereby suppressing the enlargement of the light source device.

[0070] <Variation Example>

[0071] The following is for reference Figure 4 and Figure 5 Explain a modified example of the light source device 100. Figure 4 This is a cross-sectional view of a modified example of the first retaining member 10 having the first cooling member 50. Figure 5 This is a cross-sectional view of a modified example of the second retaining member 20 having the second cooling member 60. Figure 4 The cross-section of the first holding member 10 is shown by a plane containing the central axis 15c of the first optical component 15 and the central axis 16c of the first wavelength conversion component 16. Figure 5 The cross-section of the second holding member 20 is shown by a plane containing the central axis 25c of the second optical component 25 and the central axis 26c of the second wavelength conversion component 26.

[0072] like Figure 4As shown, the first retaining member 10 has a first cooling member 50 on the side opposite to the supporting member 40 (negative X-axis side). The first cooling member 50 is, for example, a heat sink, used to cool the first retaining member 10.

[0073] The first lens holder 19 is used to hold the first optical component 15.

[0074] Because the first holding member 10 has a first cooling member 50, it can suppress the heat generation of the first wavelength conversion member 16 inside the first holding member 10, and ensure a high wavelength conversion efficiency of the first wavelength conversion member 16.

[0075] like Figure 5 As shown, the second holding member 20 has a second cooling member 60 on the side opposite to the supporting member 40 (positive X-axis side). The second cooling member 60 is, for example, a heat sink, used to cool the second holding member 20. The second lens holder 29 is used to hold the second optical member 25.

[0076] Because the second holding member 20 has a second cooling member 60, it is able to suppress the heat generation of the second wavelength conversion member 26 inside the second holding member 20, thereby ensuring a high wavelength conversion efficiency of the second wavelength conversion member 26.

[0077] The first holding member 10 has a first cooling member 50 on the side opposite to the support member 40, and the second holding member 20 has a second cooling member 60 on the side opposite to the support member 40. Therefore, for example, the first holding member 10 holding the first wavelength conversion member 16 and the first optical member 15 can be used as a common unit, improving the manufacturing efficiency of the light source device 100 while reducing the cost of the light source device 100.

[0078] [Second Implementation]

[0079] The display device 200 of the second embodiment will now be described.

[0080] Figure 6 This is a schematic diagram of the internal structure of the display device 200. The display device 200 is, for example, a projector, which displays images by projecting images onto a screen S. The display device 200 includes a housing 210, a light source device 100, a light homogenizing element 70, an illumination optical system 80, a spatial light modulator 81, and a projection optical system 90.

[0081] The housing 210 houses the light source device 100, the light homogenizing element 70, the illumination optical system 80, the spatial light modulator 81, and the projection optical system 90.

[0082] The light source device 100 emits light including wavelengths corresponding to R (red), G (green), and B (blue).

[0083] The light homogenizing element 70 homogenizes light by mixing the light emitted from the light source device 100. The light homogenizing element 70 can be, for example, a light tunnel composed of four mirrors, a rod integrator, a compound eye lens, etc.

[0084] The illumination optical system 80 illuminates the spatial light modulator 81 substantially uniformly with light homogenized by the light homogenizing element 70. The illumination optical system 80 has, for example, one or more lenses or one or more reflective surfaces.

[0085] The spatial light modulator 81 has multiple pixels, and generates an image by emitting image light L from the light source device 100 through the light homogenizing element 70 and the illumination optics system 80, with each pixel being turned on or off. The spatial light modulator 81 includes light valves such as digital micromirror devices (DMDs), transmissive liquid crystal panels, and reflective liquid crystal panels.

[0086] The projection optical system 90 magnifies and projects the image generated by the spatial light modulator 81 onto the screen S. The projection optical system 90 has, for example, one or more lenses.

[0087] The display device 200 is able to suppress its own size by having a light source device 100. As the manufacturing efficiency of the light source device 100 is improved, the manufacturing efficiency of the display device 200 can also be improved, while the cost is reduced.

[0088] Examples of embodiments of the present invention have been described above, but the present invention is not limited to these specific embodiments and various modifications and alterations are permitted within the scope of the spirit of the present invention as described in the claims of the patent application.

[0089] In addition to display devices, the light source device 100 can also be used as a device for emitting light in various optical devices.

[0090] Explanation of reference numerals in the attached figures

[0091] 10 First retaining component

[0092] 11 First Light-Glowing Section

[0093] 12 First Lens Array

[0094] 13 First relay lens

[0095] 14 First beam splitter

[0096] 15 First optical component

[0097] 15c Central axis of the first optical component

[0098] 150 First Irradiation Point

[0099] 16 First Wavelength Conversion Component

[0100] 16c The central axis of the first wavelength conversion component

[0101] 160 First Passing Line

[0102] The center of the first wavelength conversion component of 160c

[0103] 161 First wavelength conversion region

[0104] 162 First Reflection Area

[0105] 163 First Rotating Substrate

[0106] 17 First Condensing Lens

[0107] 18 First light diffusion component

[0108] 19 First lens support

[0109] 20 Second retaining component

[0110] 25 Second Irradiation Point

[0111] 26 Second Wavelength Conversion Component

[0112] 260 Second Through Line

[0113] The center of the second wavelength conversion component of the 260c

[0114] 261 Second wavelength conversion region

[0115] 262 Second Reflection Area

[0116] 263 Second Rotating Substrate

[0117] 26c The central axis of the second wavelength conversion component

[0118] 27 Second Condensing Lens

[0119] 28 Second light diffusion component

[0120] 29 Second lens support

[0121] 30 Photosynthesis Components

[0122] 301 First Reflecting Surface

[0123] 302 Second Reflecting Surface

[0124] 40 Support components

[0125] 50 First cooling component

[0126] 60 Second Cooling Component

[0127] 70 Light homogenization element

[0128] 80 Illumination Optical System

[0129] 81 Spatial Light Modulator

[0130] 90 Projection Optical System

[0131] 100 Light Source Device

[0132] Lenses 131, 132, 151, 152, 231, 232, 251, 252

[0133] 200 display devices

[0134] 210 Housing

[0135] L11 First Laser

[0136] L12 First Fluorescence

[0137] L21 Second laser, L22 Second fluorescence, L Light source 250

Claims

1. A light source device, characterized in that, have Multiple light-emitting parts, including at least a first light-emitting part and a second light-emitting part; The first wavelength conversion component includes a first wavelength conversion region for receiving light of a first wavelength from the first light-emitting part and emitting light of a second wavelength that is different from the first wavelength. The second wavelength conversion component includes a second wavelength conversion region for receiving light of the first wavelength from the second light-emitting part and emitting light of the second wavelength. The first optical component focuses the light of the first wavelength from the first light-emitting part onto the first wavelength conversion component, and simultaneously guides the light of the first wavelength and the light of the second wavelength from the first wavelength conversion component. The second optical component focuses the light of the first wavelength from the second light-emitting part onto the second wavelength conversion component, and simultaneously guides the light of the first wavelength and the light of the second wavelength from the second wavelength conversion component. as well as A light-combining component synthesizes light of the first wavelength and light of the second wavelength guided by the first optical component, and light of the first wavelength and light of the second wavelength guided by the second optical component. The central axis of the first optical component overlaps with the central axis of the second optical component. The central axis of the first wavelength conversion component overlaps with the central axis of the second wavelength conversion component.

2. The light source device according to claim 1, characterized in that, have A first holding component holds the first wavelength conversion component and the first optical component; The second holding component holds the second wavelength conversion component and the second optical component; as well as The supporting component supports at least the plurality of light-emitting parts and the light-combining component. The first holding member has an axisymmetric shape centered on a first passing line that passes through the center of the first wavelength conversion member and is orthogonal to the central axis of the first optical member. The second holding member has an axisymmetric shape centered on a second passing line that passes through the center of the second wavelength conversion member and is orthogonal to the central axis of the second optical member.

3. The light source device according to claim 2, characterized in that, The first retaining member has a first cooling member on the side opposite to the supporting member for cooling the first retaining member. The second retaining member has a second cooling member on the opposite side of the supporting member for cooling the second retaining member.

4. The light source device according to any one of claims 1 to 3, characterized in that, The central axis of the first optical component is along the central axis of the first wavelength conversion component. The central axis of the second optical component is along the central axis of the second wavelength conversion component.

5. The light source device according to any one of claims 1 to 3, characterized in that, The central axis of the first optical component, the central axis of the first wavelength conversion component, the central axis of the second optical component, and the central axis of the second wavelength conversion component are located in the same plane.

6. The light source device according to any one of claims 1 to 3, wherein, The axial deviation between the central axis of the first optical component and the central axis of the second optical component is less than ±1 / 5 of the maximum diameter of either the first optical component or the second optical component, and the axial deviation between the central axis of the first wavelength conversion component and the central axis of the second wavelength conversion component is less than ±1 / 5 of the maximum diameter of either the first wavelength conversion component or the second wavelength conversion component.

7. A display device, characterized in that, include A spatial light modulator having a plurality of pixels, generating an image by turning on or off light emitted from a light source device according to any one of claims 1 to 6 according to the pixels; as well as The projection optical system projects an image generated by the spatial light modulator.

Images