A light source system and a projection device

Abstract

The application protects a light source system, comprising: a first light module, the first light module comprising a first light source and a second light source, the first light source being used for emitting first light, and the second light source being used for emitting second light; a second light module, the second light module comprising a third light source, the third light source being used for emitting third light; and a light combining module, the light combining module being used for combining the first light, the second light and the third light, wherein the optical etendue of the first light and the second light is greater than the optical etendue of the third light, and the third light is red laser light. Since the first light module and the second light module with different optical etendues are used, and the third light is red laser light, the light source system can emit higher brightness in a very small volume, and compared with a wavelength-combining scheme, the design difficulty and manufacturing difficulty of optical elements in the light combining module are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a light source system and a projection device. BACKGROUND

[0002] With the improvement of information technology, people's requirements for convenient interactive display are getting higher and higher, for example, it is necessary to create an interactive space to provide a surface for virtual activities, such as games, art, puzzles, etc., to give people a sense of physical experience. Although mobile phones and smart tablets can realize convenient display, they are limited by their display methods and cannot realize real interactive display. Therefore, to realize flexible interactive display, the current only technical route is projection.

[0003] In the existing projection convenient interactive technology, since the requirement for brightness is not high in the use scene, a LED combined light source is mostly used to realize white light emission. However, since the brightness of the LED light source itself is insufficient, the design difficulty of the related optical elements is high, and the volume of the light source is difficult to reduce, the key optical elements in the light source cannot be mass-produced, and since the light combination efficiency of the LED light source is low, the service life is short, the light source device needs to be frequently replaced, and the color gamut of the LED combined light source is limited, which cannot meet the requirements of users for high-quality projection interactive space. Therefore, how to provide a light source system with low cost, small volume, high brightness and good color gamut is a problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the defects of the prior art, the present application provides a light source system with low cost, small volume, high brightness and good color gamut to be more suitable for a projection system, which comprises: a first light module, the first light module comprising a first light source and a second light source, the first light source being used for emitting first light, and the second light source being used for emitting second light. A second light module, the second light module comprising a third light source, the third light source being used for emitting third light. A light combination module, the light combination module being used for combining the first light, the second light and the third light, wherein the etendue of the first light and the second light is greater than the etendue of the third light, and the third light is red laser.

[0005] In some embodiments, the first light module further comprises: a collection assembly, the collection assembly comprising a first collection assembly and a second collection assembly, the first collection assembly and the second collection assembly being used for collecting the first light and the second light respectively; a recycling assembly, the recycling assembly being arranged after the collection assembly, the recycling assembly comprising a first recycling assembly and a second recycling assembly, the first recycling assembly and the second recycling assembly being used for recycling the first light and the second light respectively so that the first light and the second light are recycled to the first light source or the second light source.

[0006] In some embodiments, the second light module further comprises a first mirror for reflecting the third light so that the third light is incident into the light combining module; and a speckle killer component disposed between the first mirror and the light combining module or after the light combining module for killing speckle of the third light.

[0007] In some embodiments, the light combining module comprises a first light combining component for transmitting the third light and reflecting the first light or the second light; and a second light combining component disposed on an exit light path of the first light combining component, the second light combining component for transmitting the third light, the first light, reflecting the second light or for transmitting the third light, the second light reflecting the first light.

[0008] In some embodiments, the light combining module comprises a third light combining component and a fourth light combining component: the third light combining component comprises a central hole portion for transmitting the third light and a peripheral portion for reflecting the first light or the second light to achieve extended light combining; and the fourth light combining component is disposed on an exit light path of the third light combining component, the fourth light combining component comprises a second central hole for transmitting the third light, the first light and a second peripheral portion for transmitting the first light reflecting the second light or for transmitting the second light reflecting the first light.

[0009] In some embodiments, the light combining module comprises a fifth light combining component and a sixth light combining component: the fifth light combining component transmits the third light and reflects the first light and the second light; or the fifth light combining component comprises a central hole portion for transmitting the third light and a peripheral portion for reflecting the first light and the second light to achieve extended light combining; and the sixth light combining component is disposed on an exit light path of the fifth light combining component for combining white light.

[0010] In some embodiments, the first light module further comprises a supplemental light source for emitting excitation light, the excitation light irradiating onto the first light source or the second light source, the first light source or the second light source being provided with first light or second light fluorescent powder on a surface thereof, the excitation light irradiating the fluorescent powder to generate supplemental light, the supplemental light being incident into the light combining module after being reflected by the first light source or the second light source.

[0011] In some embodiments, the second phosphor is disposed on a surface of the second light source, the sixth light combination component includes a first optical surface and a second optical surface perpendicular to each other, the first optical surface and the second optical surface are configured to reflect the first light and transmit the second light and the third light, the first light reflected by the first optical surface exits along the exit light path, the first light reflected by the second optical surface is reflected from the fifth light combination component to irradiate the second phosphor to generate complementary light, and the complementary light exits along the exit light path after being combined by the fifth light combination component and the sixth light combination component.

[0012] In some embodiments, the light source system further includes a collimating lens, the collection component is a conical reflector or a collection lens, and the collimating lens is disposed on the exit light path of the conical reflector to collimate the light rays.

[0013] In some embodiments, the light source system further includes a light homogenization module disposed on the light path of the light exiting the light combination module to homogenize the light after being combined by the light combination module.

[0014] In another aspect, the present application also provides a projection device including the above light source system.

[0015] In some embodiments, the projection device further includes a light modulation module including a light modulator and a lens system, the light modulator is an LCOS, and the lens system is a direct projection lens or an ultra-short focus lens.

[0016] Compared with the prior art, the present application uses the first light module and the second light module with different optical etendue, the third light is red laser light, can make the light source system emit higher brightness in a very small volume, and compared with the wavelength combination scheme, reduces the design difficulty and manufacturing difficulty of the optical elements in the light combination module, compared with the projection technology using multiple LEDs in the prior art, can improve the light emitting efficiency of the light source system, improve the color gamut range of the picture exiting the projection device, reduce the design difficulty of the key optical elements, avoid the need to frequently replace the light source device, and make large-scale mass production of the projection product possible. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of the basic optical architecture of the light source system;

[0018] Figure 2 FIG. 1 is a schematic diagram of the basic optical architecture of the light source system;

[0019] Figure 3 FIG. 1 is a schematic diagram of the basic optical architecture of the light source system;

[0020] Figure 4Structure diagram of the light combination module of the third embodiment of the light source system of the present application;

[0021] Figure 5 Structure diagram of the fourth embodiment of the light source system of the present application;

[0022] Figure 6 Structure diagram of the light combination module of the fifth embodiment of the light source system of the present application;

[0023] Figure 7 Structure diagram of the projection device of the present application;

[0024] Figure 8 Another structure diagram of the projection device of the present application. DETAILED DESCRIPTION

[0025] In the related art, a light source is generally formed by combining a red LED, a blue LED and a green LED to achieve white light emission. Since the brightness of the LED light source itself is insufficient, in an environment with a slightly higher brightness requirement, a higher brightness can only be achieved by increasing the number of LEDs. Since the brightness requirement of the red LED is the largest, a combination of a first red LED, a second red LED, a green LED and a blue LED is generally used to achieve the light source combination. However, since the expansion of the LED emission light is large, the design difficulty of the light combination component and the light combination efficiency are both high when the light is combined, especially when the red LED and the green LED are combined. In addition, since multiple LEDs are used, the overall size of the light source is large under the same brightness requirement. Therefore, there is an urgent need for a small-size, high-brightness and high-efficiency light source system.

[0026] Therefore, the present application proposes a new light source system which fully utilizes the difference in optical expansion between the LED light source and the laser light source and redesigns the layout form of the optical elements to effectively reduce the cost, size, improve the brightness and color gamut. It can be understood that the projection device of the present application can be used not only in traditional projection industry such as business machine, education machine and other projectors, but also can be applied to interactive projection scenes such as desktop projection, micro projection, mobile phone integrated projection and the like due to the simple architecture and powerful function, which has a very broad application prospect.

[0027] Please refer to Figure 1 , the basic optical architecture diagram of the light source system of the present application, the light source system includes a first light module 10, a second light module 20, a light combination module 30 and a light homogenization module 40. The first light module 10 includes a first light source 11 and a second light source 12, the first light source 11 is used to emit first light, and the second light source 12 is used to emit second light. In some embodiments, the first light can be blue light or green light, and the second light can be green light or blue light. The second light module 20 includes a third light source 21 and a fourth light source 22, the third light source 21 is used to emit third light, and the fourth light source 22 is used to emit fourth light. In some embodiments, the third light can be blue light or green light, and the fourth light can be green light or blue light. The light combination module 30 is used to combine the first light, the second light, the third light and the fourth light to form a light source with a certain color gamut. The light homogenization module 40 is used to homogenize the light emitted by the light source.

[0028] The block 20 comprises a third light source 21 for emitting third light, which is red light in the embodiment. The light combination module 30 is used for combining the first light, the second light and the third light, which can be wavelength combination or extended quantity combination, and the detailed structure will be introduced later, which is not described here. The extended quantity of the first light and the second light is greater than that of the third light, for example, the first light and the second light can be wide spectrum light emitted by LED or fluorescent light, which can be generated by fixed fluorescent wheel, color wheel and other forms, which is not limited in the present application. The third light can be laser, preferably linearly polarized laser. Since the optical extended quantity of the first light and the second light is greater than that of the third light, when the first light, the second light and the third light are combined, the difference in spectrum and the difference in optical extended quantity of the three kinds of light can be fully utilized, so that the volume of the light source can be further reduced under the premise of further improving the brightness of the light source after combination. At the same time, since the optical extended quantity of the first light source and the second light source in the first light module is large, the non-imaging optical principle can be fully utilized to recycle the light emitted by the first light module 10, and the light emitting efficiency of the light source is significantly improved.

[0029] The embodiments of the present application will be described in detail below in combination with the drawings and embodiments.

[0030] Please refer to Figure 2Figure 1 is a schematic diagram of an embodiment of a light source system according to the present application. The first light module 10 of the light source system 1000 includes a first light source 11 and a second light source 12, and specifically includes a light source assembly, a collection assembly, and a recycling assembly. The light source assembly includes a first light source assembly 111 and a second light source assembly 121, and is configured to emit a first light and a second light. In this embodiment, the first light source assembly 111 and the second light source assembly 121 are LED light sources, the first light is blue light, and the second light is green light. Preferably, the spectral range of the first light is 480 ± 15 nm, and the spectral range of the second light is 538 nm ± 15 nm. The collection assembly is disposed on the light path of the light source assembly, and includes a first collection assembly 121 and a second collection assembly 122. The first collection assembly 121 and the second collection assembly 122 are configured to collect the light emitted by the first light source assembly 111 and the second light source assembly 121, respectively, and to irradiate the collected light onto the recycling assembly. The recycling assembly is disposed on the light path of the collection assembly, and includes a first recycling assembly 113 and a second recycling assembly 123. The recycling assembly is configured to transmit light of a first polarization state and reflect light of a second polarization state, which is perpendicular to the first polarization state, back to the light source assembly for reuse. In some embodiments, the recycling assembly is a reflective polarized brightness enhancement film (DBEF).

[0031] In some embodiments, the light source system further includes a collimating lens 1121 (1221), and the collection assembly can be a conical reflector 1221 (1222) or a collection lens 1221 (1222). The collimating lens is disposed on the light path of the conical reflector. The conical reflector 1221 has an incident surface at one end with a smaller area and an exit surface at the other end with a larger area. The first light or the second light emitted by the light source assembly is incident into the conical reflector through the incident surface, is reflected by the side wall of the conical reflector, and is then emitted from the exit surface or directly emitted. As a result, the area of the exit light spot is larger than the area of the incident light spot, thereby reducing the divergence angle of the light beam. In this way, the first light or the second light is emitted in a non-imaging manner to match the subsequent light modulation module. In this embodiment, the conical reflector 1221 is a solid conical light guide rod, and the light beam is reflected by the side wall of the conical reflector 1221 through total reflection. In other embodiments of the present application, the conical reflector 1221 can also be a hollow conical reflector composed of a reflective plate / reflection surface, which will not be described here. The collimating lens can be a Fresnel lens, a free-form lens, or the like, which can collimate the light spot to match the illumination part required by the subsequent modulation panel.

[0032] In some embodiments, please refer to Figure 3The first optical module also includes a supplementary light source 13, which emits excitation light. The excitation light illuminates the first light source 11 or the second light source 12. The surface of the first light source 11 or the second light source 12 is provided with first or second light phosphor. The excitation light illuminates the phosphor to generate supplementary light. The supplementary light, after reflection from the first light source 11 or the second light source 12, enters the light combining module 30. In this embodiment, the supplementary light source is a blue laser, the first light source is a blue LED, and the second light source is a green LED. The surface of the second light source is provided with green phosphor. After the blue laser illuminates the green phosphor on the surface of the second light source, it remotely excites and generates green fluorescence. The green fluorescence, after reflection from the green LED, illuminates the light combining module. This configuration further increases the efficiency of the light source system in generating green light. Since green light contributes more to the brightness of white light, this configuration helps to significantly improve the brightness of the light source. In some embodiments, please refer to... Figure 2 The second optical module 20 includes a third light source 21, a first reflector 22, a speckle-reducing component 23, and a collimation component 24. The third light source 21 emits a third light, which is a red laser. Preferably, the spectral range of the third light source is 625nm ± 2nm. Since the spectral range of the third light emitted by the third light source differs significantly from that of the first light emitted by the first light source and the second light emitted by the second light source, the design difficulty of the light combining module 30 is relatively low. Furthermore, because the color coordinates of the third light source are closer to the color gamut extreme value than the broad-spectrum red light emitted by the LED red light source, the color gamut range of this light source system is larger than that of a combined light source of red LED, blue LED, and green LED, resulting in better color rendering and effectively improving the user experience. The first reflector is mainly used to reflect the third light so that it enters the light combining module 30. Figure 2 In the described optical path architecture, the first reflector fully utilizes the lateral space of the first and second light sources. Simultaneously, this design reduces interference between light source components while minimizing the volume of the light source system. In some embodiments, the speckle-reducing component 23 is positioned between the first reflector and the light-combining module. This arrangement effectively eliminates speckle in the third light, improving the efficiency of the white light emitted from the light source system. Furthermore, it broadens the optical extension of the third light, allowing the first, second, and third lights to fully contact each other within the light-combining module for optimal light combining. In some embodiments, the first reflector and the speckle-reducing component are integrated, enabling speckle reduction and reflection of the third light. In other embodiments, the speckle-reducing component 23 is positioned after the light-combining module 30 and before the light-uniforming module 40. This fully utilizes the difference in optical extension between the third light and the first and second lights, allowing for a differentiated design of the light-combining module and improving its light-combining efficiency.

[0033] In some embodiments, for the scheme that the dispersion spot assembly 23 is arranged between the first reflecting mirror and the light combining module, please continue to refer to Figure 2 The light combining module 30 can include a first light combining assembly 31 and a second light combining assembly 32. The first light combining assembly 31 is a wavelength light combining assembly, i.e., the first light combining assembly is configured to transmit the first light or the second light. The second light combining assembly 32 is also a wavelength light combining assembly, and is arranged on the light path of the first light combining assembly 31. The second light combining assembly 32 is configured to transmit the third light, the first light, the reflected second light, or to transmit the third light, the second light, the reflected first light. In the present embodiment, the first light combining assembly 31 is configured to transmit red light and reflect green light, and the second light combining assembly is configured to transmit red light and green light and reflect blue light. In another embodiment, as shown in the scheme of Figure 3 , the first light combining assembly is configured to transmit red light and blue light and reflect green light, and the second light combining assembly is configured to reflect blue light and transmit red light and green light. Through such an arrangement, the expansion of the third light after being dispersed by the dispersion spot assembly 23 can match the expansion of the first light and the second light, so that light combining can be achieved by wavelength light combining. Moreover, the dispersion spot assembly 23 can be designed integrally with the first reflecting mirror, so that the volume of the light path can be further reduced.

[0034] In another embodiment, for the scheme that the dispersion spot assembly 23 is arranged between the light combining module and the light homogenizing module 40, please continue to refer to Figure 2 and refer to Figure 3 and Figure 4 together, the light combining module 30 can include a third light combining assembly 33 and a fourth light combining assembly 34. The third light combining assembly 33 includes a central hole portion 331 and a peripheral portion 332. The central hole 331 is configured to transmit the third light, and the peripheral portion 332 is configured to reflect the first light or the second light to achieve expansion light combining. The fourth light combining assembly 34 is arranged on the light path of the third light combining assembly 33. The fourth light combining assembly includes a second central hole 341 and a second peripheral portion 342. The second central hole 341 is configured to transmit the third light and the first light, and the peripheral portion 342 is configured to transmit the first light and reflect the second light, or to transmit the second light and reflect the first light. In some embodiments, the central hole 331 of the third light combining assembly 33 is configured to transmit the third light with small expansion, and the peripheral portion 332 is configured to reflect green light. The second central hole 341 of the fourth light combining assembly is configured to transmit red light and green light with small expansion, and the second peripheral portion 342 of the fourth light combining assembly 34 is configured to transmit green light and reflect blue light. In another embodiment, as shown in the scheme of Figure 3In the shown scheme, the first central hole of the third light combination component is used for transmitting red laser and blue complementary light, the first peripheral part is used for reflecting green light, the second peripheral part of the fourth light combination component is used for reflecting blue light, and the second central hole part of the fourth light combination component is used for transmitting red laser and green light. Through such a setting, the difference in the expansion amount of the third light and the expansion amount of the first light and the second light can be fully utilized, so that the light combination can be realized by the expansion amount combination mode, intersecting with the scheme of wavelength combination, which can maximize the guarantee of the red laser incident to the subsequent optical system. Since the efficiency of red light itself is not high, such a design can maximize the utilization of red laser.

[0035] In some other embodiments, the first light module can not additionally set a complementary light source, but generate the complementary light through the first light source 11. After the first light generated by the first light source 11 passes through the light combination module, part of the first light is used for reflection on the second light source 12. The second light source 12 is provided with a second light fluorescent powder on the surface. Part of the first light irradiates the fluorescent powder to generate the complementary light. The complementary light is reflected by the second light source 12 and then enters the light combination module 30 again. In this embodiment, the complementary light source is the first light source 11, the first light source is a blue LED, the second light source is a green LED, and the second light source 12 is provided with a green fluorescent powder on the surface. After part of the first light irradiates the green fluorescent powder on the surface of the green LED, the green fluorescent powder is excited to generate green fluorescent light. The green fluorescent light is reflected by the green LED and then reflected into the light combination module again. Through such a setting, the efficiency of the light source system in generating green light can be further increased. Since the brightness contribution of green light in white light is greater, the setting helps to significantly improve the light source brightness. In this embodiment, the third light source 21 is a linearly polarized laser with S polarization state, emitting red S polarized light. In this embodiment, the light combination module 30 includes a fifth light combination component 35 and a sixth light combination component 36. The fifth light combination component can be the aforementioned wavelength combination device, which is used for transmitting red laser (third light) and reflecting blue light (first light), or an optical expansion amount combination device, the central area of which is used for transmitting red laser, and the peripheral area thereof is used for reflecting blue light (first light). The sixth light combination module is an X-cube light combination component.

[0036] Please see the following Figure 6, the first light source emits blue light, and the blue light is incident on the sixth light combination component 36. The sixth light combination component 36 includes a first optical surface 361, a second optical surface 362, a third support surface 363, and a fourth support surface 364. The first optical surface 361 is provided with a blue light reflecting and red and green light transmitting film. The second optical surface 362 is provided with a blue light reflecting and red and green light transmitting film. The third support surface 363 is a transparent surface. The third support surface 363 is in the same plane as the second optical surface 362. The fourth support surface 364 is a transparent surface. The fourth support surface 364 is in the same plane as the first optical surface 361. The included angle between the first optical surface and the second optical surface is 90°, that is, the first optical surface and the second optical surface are arranged perpendicularly. Therefore, part of the blue light is reflected into the exit light path after being transmitted through the third support surface 363 and being incident on the first optical surface 361. Another part of the blue light is reflected into a direction opposite to the exit light path after being transmitted through the support surface 364 and being incident on the second optical surface, and is incident on the fifth light combination component 35. Since the fifth light combination component reflects the first blue light, reflects the second green light, and transmits the third red laser light, part of the blue light is reflected by the fifth reflecting element to the second light source, and green fluorescent powder is excited to generate green light. For the second light source, the second light source emits green light, and the green light and the green fluorescent light generated by the first light source are incident on the fifth light combination component together, so as to be combined with the third light to be incident on the sixth light combination component again and generate white light. In this embodiment, the recycling component can also not be provided, but a polarizer is designed separately when entering the light modulation module subsequently.

[0037] Please continue to see Figure 2 In some embodiments, the light source system further includes a light homogenizing module 40, which is arranged on the light path of the light emitted by the light combination module 30 and is used for homogenizing the light combined by the light combination module 30. Preferably, the light homogenizing module 40 includes a light homogenizing element (not shown in the figure), which can be a compound eye lens or a square rod. Preferably, the light homogenizing element is a compound eye lens, which can be adapted to the expansion of the light combination module.

[0038] Please see Figure 7 The projection device provided in the present application includes the light source system in Embodiments 1-3. The projection device further includes a light modulation module 50 and a lens module 60.

[0039] In some embodiments, the light modulation module 50 includes a second mirror 51, a polarization beam splitter prism 52, and a light modulation assembly 53, wherein the tilting direction of the second mirror is parallel to the tilting direction of the first light combination assembly 31 and the second light combination assembly 32 in the light combination module 30, and the angle between the tilting direction of the first light combination assembly 31 and the second light combination assembly 32 and the horizontal direction is 135 degrees. The polarization beam splitter prism 52 is arranged on the light path of the second mirror, and is used to irradiate the light reflected by the second mirror 51 into the light modulation assembly 53. The light modulation assembly 53 is used to modulate the incident light, wherein the polarization beam splitter prism 52 is provided with a beam splitter film, the tilting direction of the beam splitter film is parallel to the tilting direction of the second mirror 51, and the beam splitter film is used to reflect light of a first polarization state and transmit light of a second polarization state. The light modulation assembly 53 is a liquid crystal on silicon (LCOS), which can modulate light of the first polarization state. In this embodiment, the light of the first polarization state is S-polarized light, and the light of the second polarization state is P-polarized light. A direct projection lens 60 is arranged in the gap between the right side of the light modulation module and the upper side of the light source system, so as to fully utilize the longitudinal space and the transverse space, so that the overall light path layout is compact and small in size. At the same time, since the LCOS is used for modulation, the principle of reflection modulation can be fully utilized, and the size of the light path can be further compressed.

[0040] In some embodiments, referring to another embodiment of the projection device shown in Figure 8 In some embodiments, referring to another embodiment of the projection device shown in

[0041] The light source system and the projection system provided by the embodiment can emit higher brightness in a very small volume, the third light is red laser, the optical etendue of the third light emitted by the second light module is smaller than the optical etendue of the first light and the second light emitted by the first light module, the design difficulty and the manufacturing difficulty of the optical elements in the light combination module are reduced, compared with the technology of realizing projection by using multiple LEDs in the prior art, the light emitting efficiency of the light source system can be improved, the color gamut range of the picture emitted by the projection device is improved, the design difficulty of the key optical elements is reduced, the light source device needs not to be frequently replaced, and large-scale production of the projection product is possible.

[0042] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0043] The above is only the implementation of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the specification and the drawings, is also included in the patent protection scope of the application.

Claims

1. A light source system, comprising: a first light module comprising a first light source configured to emit a first light and a second light source configured to emit a second light; a second light module comprising a third light source configured to emit a third light; and a light combining module configured to combine the first light, the second light and the third light, the light combining module comprising a third light combining component and a fourth light combining component, the third light combining component comprising a central hole configured to transmit the third light and a peripheral portion configured to reflect the first light or the second light to achieve extended light combination, the fourth light combining component disposed on an exit light path of the third light combining component, the fourth light combining component comprising a second central hole configured to transmit the third light and the first light and a second peripheral portion configured to transmit the first light and reflect the second light or configured to transmit the second light and reflect the first light, the first light and the second light having an optical etendue greater than an optical etendue of the third light, the third light being a red laser light. 2.The light source system of claim 1, wherein the first light module further comprises: a collecting component comprising a first collecting component and a second collecting component configured to collect the first light and the second light, respectively; and a recycling component disposed after the collecting component, the recycling component comprising a first recycling component and a second recycling component configured to recycle the first light and the second light, respectively, such that the first light and the second light are recycled to the first light source or the second light source. 3.The light source system of claim 1, wherein the second light module further comprises: a first mirror configured to reflect the third light such that the third light is incident on the light combining module; and a speckle-eliminating component disposed between the first mirror and the light combining module or disposed after the light combining module, the speckle-eliminating component configured to eliminate speckle of the third light. 4.The light source system of claim 1, wherein the first light module further comprises a supplemental light source configured to emit an excitation light, the excitation light illuminating a first light or a second light phosphor disposed on a surface of the first light source or the second light source, the excitation light illuminating the phosphor to generate a supplemental light, the supplemental light being incident on the light combining module after being reflected by the first light source or the second light source. 5.The light source system of claim 2, wherein the light source system further comprises a collimating lens, the collecting component being a conical reflector or a collecting lens, the collimating lens being disposed on an exit light path of the conical reflector to collimate the first light and the second light. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The light source system of claim 1, wherein the light source system further comprises a light homogenizing module disposed on the light path of the light emitted by the light combining module, and configured to homogenize the light combined by the light combining module.

7. A projection device, comprising the light source system of claims 1-6.

8. The projection device of claim 7, wherein the projection device further comprises: a light modulating module comprising a light modulator, the light modulator being an LCOS, and a lens system, the lens system being a direct projection lens or an ultra-short focus lens. ​ ​ ​

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