CN220367517U - Light source system and projection device - Google Patents

Abstract

The utility model provides a light source system and a projection device. The light source system comprises a laser light source module, an LED light source module, a light combining element and a heat dissipation module. One of the laser light source module and the LED light source module is used for emitting a first light beam, and the other is used for emitting a second light beam. The light combining element is arranged on the emergent light paths of the laser light source module and the LED light source module and is used for reflecting the first light beam to combine with the second light beam. The heat dissipation module is connected to the laser light source module and the LED light source module in a heat conduction manner and used for dissipating heat of the laser light source module and the LED light source module. Therefore, the light source system can adjust the working conditions of the laser light source module, the LED laser light source module and the heat dissipation module according to the ambient temperature during working so as to ensure that the brightness and the color coordinates of a projection picture are maintained at higher levels, thereby ensuring the quality of the projection picture of the projection device and further improving the user experience.

Description

Light source system and projection device

Technical Field

The present utility model relates to the field of projection technologies, and in particular, to a light source system and a projection apparatus.

Background

In the related art, a projection apparatus generally operates in a spacious and stable environment, and thus, a light source system of the projection apparatus can stably operate in a certain ambient temperature interval, and a projection screen and color coordinates float less. However, when the projection device is applied to a vehicle, the space in the vehicle is narrow, and the air circulation is unstable, so that the environment temperature change of the projection device during working is large, and the projection picture and the color coordinates of the projection device are greatly changed.

Disclosure of Invention

The embodiment of the utility model provides a light source system and a projection device, which are used for improving at least one of the problems.

The embodiments of the present utility model achieve the above object by the following technical means.

In a first aspect, embodiments of the present utility model provide a light source system.

The light source system comprises a laser light source module, an LED light source module, a light combining element and a heat dissipation module. One of the laser light source module and the LED light source module is used for emitting a first light beam, the other one is used for emitting a second light beam, and the laser light source module and the LED light source module are used for respectively adjusting working power according to the ambient temperature. The light combining element is arranged on the emergent light paths of the laser light source module and the LED light source module and is used for reflecting the first light beam to combine with the second light beam. The heat dissipation module is connected with the laser light source module and the LED light source module in a heat conduction mode and is used for dissipating heat of the laser light source module and the LED light source module according to the ambient temperature.

In some embodiments, the light combining element has a reflective region and a light-transmitting region connected to each other, the reflective region is used for reflecting the first light beam, and the light-transmitting region is used for transmitting the second light beam.

In some embodiments, the light-transmitting region is provided with a light-transmitting hole for transmitting the second light beam to combine with the first light beam reflected by the reflecting region.

In some embodiments, the reflective region surrounds the transmissive region.

In some embodiments, the light source system further comprises a controller electrically connected to the laser light source module and the LED light source module, respectively; the controller is used for controlling the laser light source module to emit light with a first power when the ambient temperature is in a first temperature range and controlling the LED light source module to emit light with a second power. The controller is also used for controlling the laser light source module to emit light with third power and controlling the LED light source module to emit light with fourth power when the ambient temperature is in the second temperature range. Wherein, any value in the second temperature interval is greater than any value in the first temperature interval, the third power is less than the first power, and the fourth power is greater than the second power.

In some embodiments, the controller is further electrically connected to the heat dissipation module. The controller is also used for controlling the heat dissipation module to dissipate heat with fifth power when the ambient temperature is within the first temperature range. The controller is also used for controlling the heat dissipation module to dissipate heat with sixth power when the ambient temperature is in the second temperature interval, and the sixth power is larger than the fifth power.

In some embodiments, the laser light source module includes an RGB laser. The controller is also used for controlling the duty ratio of the red laser emitted by the RGB laser to be a first duty ratio when the ambient temperature is in the first temperature interval. The controller is also used for controlling the duty ratio of the red laser emitted by the RGB laser to be a second duty ratio when the ambient temperature is in a second temperature interval, and the second duty ratio is smaller than the first duty ratio.

In some embodiments, the LED light source module includes a first LED light source, a second LED light source, a third LED light source, a first dichroic mirror, and a second dichroic mirror. The first dichroic mirror is arranged on the emergent light paths of the first LED light source and the second LED light source and is used for combining the light emergent from the first LED light source and the second LED light source. The second dichroic mirror is arranged on the emergent light path of the first dichroic mirror and the third LED light source and is used for combining the light emergent from the first dichroic mirror and the third LED light source. One of the first LED light source, the second LED light source and the third LED light source is a red LED light source, the other is a green LED light source and the rest is a blue LED light source.

In a second aspect, an embodiment of the present utility model further provides a projection apparatus. The projection device includes a housing and the light source system of any of the embodiments described above. The housing is formed with a mounting cavity in which the light source system is assembled.

In some embodiments, the heat dissipation module comprises a heat dissipation fan and a heat conduction component, wherein the heat conduction component is connected with the laser light source module and the LED light source module in a heat conduction way, and the heat dissipation fan is used for driving airflow to flow to the heat conduction component; the shell is also provided with an air inlet and an air outlet which are communicated with the mounting cavity, the air inlet is opposite to the heat conducting part, and the air outlet is opposite to the cooling fan.

In the light source system and the projection device provided by the embodiment of the utility model, one of the laser light source module and the LED light source module is used for emitting the first light beam, and the other one is used for emitting the second light beam. And the light combining element is arranged on the emergent light paths of the laser light source module and the LED light source module and is used for reflecting the first light beam to combine with the second light beam. In addition, the heat dissipation module is connected to the laser light source module and the LED light source module in a heat conduction way and used for dissipating heat of the laser light source module and the LED light source module. Therefore, the light source system can adjust the working conditions of the laser light source module, the LED laser light source module and the heat dissipation module according to the ambient temperature during working so as to ensure that the brightness and the color coordinates of a projection picture are maintained at higher levels, thereby ensuring the quality of the projection picture of the projection device and further improving the user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structural diagram of a light source system according to an embodiment of the present utility model.

Fig. 2 shows a schematic structural diagram of the light combining element in fig. 1.

Fig. 3 is a schematic structural diagram of a projection apparatus according to an embodiment of the present utility model.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the present utility model will be made in detail with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the utility model.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

In the related art, a projection apparatus generally operates in a spacious and stable environment, and thus, a light source system of the projection apparatus can stably operate in a certain ambient temperature interval, and a projection screen and color coordinates float less. The LED light source is limited by the lambertian light emitting characteristic of the LED, so that the light efficiency of the LED light source is low in utilization rate, and most of light is wasted because the light cannot enter the collecting lens. The trichromatic laser light source has the advantages of high brightness and wide color gamut, but is limited by the defect of poor thermal stability of red laser working substances, the requirement of the trichromatic laser light source on working temperature is extremely high, the plate temperature of the laser must be strictly controlled in order to maintain the brightness and the color coordinates of the trichromatic laser light source, and a larger radiator and a cooling fan are usually required to work at a higher rotating speed, which can squeeze the limited vehicle space and generate larger noise and other negative effects. Therefore, when the projection device is applied to a vehicle, the space in the vehicle is narrow, the air circulation is unstable, so that the environment temperature change of the projection device during working is large, and the projection picture and the color coordinates of the projection device are greatly changed.

In view of this, referring to fig. 1 to 3, the present utility model proposes a light source system 10, and the light source system 10 can be applied to a projection device 20 to image in the projection device 20. In the following embodiments, the light source system 10 is mainly applied to the projection device 20 of the vehicle, and other cases where the light source system 10 is required may be referred to and implemented.

The light source system 10 may include an LED light source module 100, a laser light source module 200, a light combining element 400, and a heat dissipation module 300. The laser light source module 200 and the LED light source module 100 can emit light beams, and the laser light source module 200 and the LED light source module 100 are used for respectively adjusting working power according to ambient temperature. The light combining element 400 may be disposed on the outgoing light paths of the laser light source module 200 and the LED light source module 100, and the heat dissipation module 300 may be thermally connected to the laser light source module 200 and the LED light source module 100 and used for dissipating heat of the laser light source module 200 and the LED light source module 100 according to the ambient temperature.

In this way, the light source system 10 can adjust the working conditions of the laser light source module 200, the LED laser light source module 100 and the heat dissipation module 300 according to the working environment temperature, so that the laser light source module 200 and the LED light source module 100 of the light source system 10 can exert the advantages of laser and LED, the characteristics of high light efficiency, wide color gamut and the like of the laser light source module 200 are used for displaying the picture image, and the incoherence of the LED is utilized to compensate the speckle of the picture, so as to ensure that the brightness and the color coordinates of the projection picture are maintained at higher level, thereby ensuring the quality of the projection picture of the projection device 20, and further improving the user experience.

For example, when the ambient temperature is normal (typically 25 ℃), the image brightness is provided mainly by the light emitted by the laser light source module 200, and the light emitted by the LED light source module 100 is used for reducing the laser speckle contrast; when the ambient temperature increases, the brightness of the red laser emitted by the laser light source module 200 decreases sharply, at this time, the current of the LED light source module 100 is increased, the power of the heat dissipation module 300 is increased, and the duty ratio of the laser light source module 200 is adjusted, so as to maintain the brightness and color coordinates of the projection screen of the projection device 20; when the ambient temperature exceeds 45 ℃, it is difficult to keep the brightness and color coordinates of the projected image of the projection device 20 at a high level, and at this time, the power of the heat dissipation module 300 can be further increased by adjusting the current and duty ratio of the laser light source module 200 and the current of the LED light source module 100, so as to maintain the brightness or color coordinates of the projected image of the projection device 20, and the light source system 10 can still output images with stable brightness and color coordinates at different ambient temperatures.

One of the LED light source module 100 and the laser light source module 200 is used for emitting a first light beam, and the other is used for emitting a second light beam. In this embodiment, the LED light source module 100 may be used to emit a first light beam, which may be used as an illumination light beam, to combine light to form an imaging light beam through the light combining element 400. In other embodiments, the LED light source module 100 may be configured to emit the second light beam.

The LED light source module 100 may include a plurality of LED light sources. For example, the LED light source module 100 may include a first LED light source 110, a second LED light source 120, and a third LED light source 130. The colors of the light rays of the first LED light source 110, the second LED light source 120, and the third LED light source 130 are different from each other. One of the first, second and third LED light sources 110, 120 and 130 is a red LED light source, another is a green LED light source, and the remaining one is a blue LED light source. For example, the first LED light source 110 may be a red LED light source, the second LED light source 120 may be a green LED light source, and the third LED light source 130 may be a blue LED light source; alternatively, the first LED light source 110 may be a green LED light source, the second LED light source 120 may be a blue LED light source, and the third LED light source 130 may be a red LED light source; alternatively, the first LED light source 110 may be a blue LED light source, the second LED light source 120 may be a red LED light source, and the third LED light source 130 may be a green LED light source, which is specifically set according to the requirements of the light source system 10.

The LED light source module 100 may further include a plurality of dichroic mirrors. For example, the LED light source module 100 includes a first dichroic mirror 140 and a second dichroic mirror 150. The first dichroic mirror 140 may be disposed on the outgoing light paths of the first LED light source 110 and the second LED light source 120, and is used to combine the light emitted from the first LED light source 110 and the second LED light source 120. The second dichroic mirror 150 is disposed on the outgoing light path of the first dichroic mirror 140 and the third LED light source 130, and is used to combine the light emitted from the first dichroic mirror 140 and the third LED light source 130. This is the case. The light source system 10 can combine the first LED light source 110, the second LED light source 120 and the third LED light source 130 through the first dichroic mirror 140 and the second dichroic mirror 150, so that the structure of the light source system 10 is compact, and the volume of the projection device 20 is reduced.

In the present embodiment, the first LED light source 110 is a red LED light source, the second LED light source 120 is a green LED light source, and the third LED laser is a blue LED light source. The first dichroic mirror 140 is a red-transmitting and green-reflecting mirror, and the first dichroic mirror 140 is disposed on the outgoing light paths of the red LED light source and the green LED light source, and is configured to combine the lights emitted from the red LED light source and the green LED light source. For example, the first dichroic mirror 140 may be used to transmit light emitted from the red LED light source, and the first dichroic mirror 140 may reflect light emitted from the blue LED light source, such that the first dichroic mirror 140 may combine the red LED light source and the green LED light source. The second dichroic mirror 150 is a red-green-blue-transmitting mirror, and the second dichroic mirror 150 is disposed on an outgoing light path of the first dichroic mirror 140 and the blue LED light source, and is configured to combine light emitted from the first dichroic mirror 140 and the blue LED light source. For example, the second dichroic mirror 150 may be used to transmit light rays emitted from the red LED light source and the green LED light source, and the second dichroic mirror 150 may reflect light rays emitted from the blue LED light source, so that the second dichroic mirror 150 may combine light rays emitted from the red LED light source, the green LED light source, and the blue LED light source. This is the case. The light source system 10 can combine the red LED light source, the green LED light source and the blue LED light source through the first dichroic mirror 140 and the second dichroic mirror 150, so that the structure of the light source system 10 is compact, and the volume of the projection device 20 is reduced.

The LED light source module 100 may further include a plurality of collecting lens groups, each collecting lens group may include a convex lens 101 and a concave lens 102, the convex lens 101 may diverge light, and the concave lens 102 may converge light, so that the collecting lens group may collect and collimate light emitted from the plurality of LED light sources.

Further, in the present embodiment, the LED light source module 100 may include the first, second and third collecting lens groups 160, 170 and 180, and each of the first, second and third collecting lens groups 160, 170 and 180 may include the convex and concave lenses 101 and 102 described above. Specifically, the first collecting lens group 160 may be disposed near the first LED light source 110, and the first collecting lens group 160 may be used to collect light emitted from the first LED light source 110 and transmit the light emitted from the first LED light source 110 from the first dichroic mirror 140; the second collecting lens group 170 may be disposed near the second LED light source 120, and the second collecting lens group 170 may be used to collect light emitted from the second LED light source 120, reflect light emitted from the second LED light source 120 from the first dichroic mirror 140, and transmit light emitted from the second LED light source 120 from the second dichroic mirror 150; the third collection lens group 180 may be disposed near the third LED light source 130, and the third collection lens group 180 may be used to collect light emitted from the third LED light source 130 and transmit the light emitted from the third LED light source 130 from the second dichroic mirror 150.

The LED light source module 100 may further include a reflector 190. The reflecting mirror 190 may be disposed on the light paths from which the first, second and third LED light sources 110, 120 and 130 exit. The mirror 190 may be used to reflect the light transmitted and reflected by the second dichroic mirror 150 to the light combining element 400 to form a first light beam.

In this embodiment, the laser light source module 200 may be used to emit a second light beam, which may be used as illumination light, to form an imaging light beam through the light combining element 400. In other embodiments, the laser light source module 200 may be used to emit the first light beam.

The laser light source module 200 may include a plurality of light sources emitted from lasers. Specifically, the laser light source module 200 may include a first laser, a second laser, and a third laser. The colors of the light rays of the first laser, the second laser, and the third laser are different from each other, for example, the first laser may be a red laser, the second laser may be a green laser, and the third laser may be a blue laser; alternatively, the first laser may be a green laser, the second laser may be a blue laser, and the third laser may be a red laser; alternatively, the first laser may be a blue laser, the second laser may be a red laser, and the third laser may be a green laser, which should be specifically set according to the light source selected by the light source system 10. In other embodiments, the laser light source module 200 may further include a monochromatic laser and a wavelength conversion device, and then convert the excitation light of the monochromatic laser into the lasing light by the wavelength conversion device, and mix the lasing light with the excitation light to exit to the light combining element 400.

Further, the laser light source module 200 may further include other relay light systems such as a shaping lens, a focusing lens group, a turning lens, etc., so that the laser light source module 200 is convenient to form the second light beam.

Referring to fig. 1 and 3, the heat dissipation module 300 may include a heat conductive member 310 and a heat dissipation fan 320. The heat conducting member 310 may be thermally connected to the laser light source module 200 and the LED light source module 100, and the heat dissipating fan 320 may be used to drive the airflow to flow toward the heat conducting member 310. In this way, the laser light source module 200 and the LED light source module 100 can transfer heat to the heat conducting member, and the heat dissipating fan 320 can drive the air flow to dissipate heat for the air guiding member, so as to reduce the temperature of the laser light source module 200 and the LED light source module 100.

Further, the heat conducting component 310 may include a heat conducting copper tube 311 and a heat dissipating fin 312, the heat conducting copper tube 311 may be thermally connected to the heat dissipating fin 312, the laser light source module 200 and the LED light source module 100, and the heat dissipating fan 320 may drive the air flow to the heat dissipating fin 312 to take away the heat of the heat dissipating fin 312, thereby dissipating the heat of the heat conducting component 310.

Referring to fig. 1 and 2, the light combining element 400 may be configured to reflect the first light beam to combine with the second light beam. In this embodiment, the light combining element 400 may be a region membrane to combine the first light beam and the second light beam.

The light combining element 400 may have a reflective region 410 and a transmissive region 420 connected. In particular, the reflective region 410 may be used to reflect the first light beam; the light-transmitting region 420 is configured to transmit the second light beam, for example, the light-transmitting region 420 may transmit the second light beam, and for example, the light-transmitting region 420 may transmit the second light beam.

Further, in the present embodiment, the light-transmitting region 420 may be provided with a light-transmitting hole 421, and the light-transmitting hole 421 is used for transmitting the second light beam to combine with the first light beam reflected by the reflecting region 410. Since the laser light expansion amount generated by the laser light source module 200 is small, after the laser light emitted by the laser light source module 200 is combined to form the second light beam, the second light beam passes through the through hole, so that the second light beam and the first light beam are combined conveniently.

The reflective region 410 may surround the transmissive region 420. Thus, the area of the reflective area 410 may be larger than the area of the light-transmitting area 420, so that most of the first light beam formed by the combined light of the LED light source module 100 is radiated through the reflective area 410, thereby facilitating the combination of the first light beam and the second light beam.

The light source system 10 may also include a controller (the controller is not shown in the drawings for simplicity of illustration) which may include circuit boards or the like. The controller may be electrically connected to the laser light source module 200, the LED light source module 100 and the heat dissipation module 300, respectively, so as to control the working conditions of the laser light source module 200, the LED light source module 100 and the heat dissipation module 300, so that the light source system 10 can still stabilize the brightness and the color coordinate at different ambient temperatures, and please refer to the following embodiments in detail.

In some embodiments, the controller may be configured to control the laser light source module 200 to emit light at a first power and control the LED light source module 100 to emit light at a second power when the ambient temperature is within the first temperature range. The controller may be further configured to control the laser light source module 200 to emit light with a third power and control the LED light source module 100 to emit light with a fourth power when the ambient temperature is within the second temperature range.

Wherein, any value in the second temperature interval is greater than any value in the first temperature interval, the third power is less than the first power, and the fourth power is greater than the second power. Specifically, the ambient temperature may be a temperature at which the laser light source module 200 and the LED light source module 100 operate. The light source system 10 may detect the temperatures of the laser light source module 200 and the LED light source module 100 through the temperature sensor, so that the light source system 10 acquires an ambient temperature and transmits data to the circuit board. The first temperature interval may refer to a set of ambient temperatures less than or equal to 25 ℃. The second temperature interval may refer to a set having an ambient temperature greater than 25 ℃, and the second temperature interval may also refer to a set having an ambient temperature greater than 25 ℃ and less than or equal to 45 ℃. The first power and the third power are working powers of the laser light source module 200, specific values should be designed according to the actual situation of the light source system 10, the second power and the fourth power are working powers of the LED light source module 100, and specific values may be designed according to the actual situation of the light source system 10. Of course, the values of the first temperature section and the second temperature section are not limited thereto, and specific values may be designed according to the actual situation of the light source system 10.

In this way, when the ambient temperature increases from the first temperature interval to the second temperature interval, that is, when the ambient temperature gradually increases, the power of the laser light source module 200 is reduced to reduce the power of the red laser, thereby reducing the brightness of the red laser emitted by the red laser, and further weakening the influence of the red laser on the projection image when the red laser participates in light combination, so as to ensure that the projection picture and the color coordinates of the projection device 20 can be maintained at higher levels.

In some embodiments, the controller may also be electrically connected with the heat dissipation module 300. The controller may also be configured to control the heat dissipation module 300 to dissipate heat at a fifth power when the ambient temperature is within the first temperature range; the controller may also be configured to control the heat dissipation module 300 to dissipate heat at the sixth power when the ambient temperature is within the second temperature range,

wherein the sixth power is greater than the fifth power. Specifically, the fifth power and the sixth power may be the working power of the heat dissipation module 300, and specific values may be designed according to the actual situation of the light source system 10.

Thus, when the ambient temperature increases from the first temperature interval to the second temperature interval, that is, when the ambient temperature gradually increases, the power of the heat dissipation module 300 is increased to increase the power of the heat dissipation fan 320, thereby being beneficial to increasing the rotation speed of the heat dissipation fan 320, further being beneficial to increasing the air flow speed, being convenient for taking away the heat of the laser light source module 200, avoiding the red laser from working in the environment with higher temperature, so that the red laser can stably work to ensure that the projection picture and the color coordinates of the projection device 20 can be maintained at higher level.

In some embodiments, the laser light source module 200 may include an RGB laser. The controller can also be used for controlling the duty ratio of the red laser emitted by the RGB laser to be a first duty ratio when the ambient temperature is in a first temperature interval; the controller is also used for controlling the duty ratio of the red laser emitted by the RGB laser to be a second duty ratio when the ambient temperature is in a second temperature interval. Wherein the second duty cycle is less than the first duty cycle.

It is understood that the laser light source module 200 may include RGB lasers, that is, the laser light source module 200 may include red, green and blue lasers. When the laser light source module 200 is in operation, the red laser, the green laser and the blue laser can emit laser lines according to time sequence. The duty ratio may be a ratio of the operating time of the red laser to the sum of the operating times of the red laser, the green laser, and the blue laser, and the specific value may be designed according to the actual situation of the light source system 10.

In this way, when the ambient temperature increases from the first temperature interval to the second temperature interval, that is, when the ambient temperature gradually increases, the working time of the red laser is reduced to reduce the influence of the red laser on the projection screen, thereby ensuring that the projection screen and the color coordinates of the projection device 20 can be maintained at a higher level.

Referring to fig. 3, the present utility model further provides a projection device 20, for example, the projection device 20 can be applied in a vehicle. The projection device 20 may include a housing 500 and a light source system 10, the housing 500 forming a mounting cavity 501, the light source system 10 may be mounted to the mounting cavity 501. The specific structure of the light source system 10 refers to the above embodiment, and since the projection device 20 adopts all the technical solutions of all the above embodiments, at least all the beneficial effects caused by the technical solutions of the above embodiments are provided, and will not be described in detail herein.

In some embodiments, the housing 500 is further provided with an air inlet 502 and an air outlet 503, the air inlet 502 and the air outlet 503 are communicated with the mounting cavity 501, the air inlet 502 is opposite to the heat conducting component 310, and the air outlet 503 is opposite to the heat dissipating fan 320. In this way, the heat dissipation fan 320 can quickly drive the air flow from the air inlet 502 to the heat conduction component 310 to take away the heat absorbed by the heat conduction component 310 and quickly flow out from the air outlet 503, so that the heat dissipation module 300 can quickly dissipate heat of the laser light source module 200 and the LED light source module 100.

In the technical solution of the present utility model, one of the laser light source module 200 and the LED light source module 100 is used for emitting a first light beam, and the other one emits a second light beam. The light combining element 400 is disposed on the outgoing light paths of the laser light source module 200 and the LED light source module 100, and the light combining element 400 is configured to reflect the first light beam to combine with the second light beam. In addition, the heat dissipation module 300 is thermally connected to the laser light source module 200 and the LED light source module 100 and is used for dissipating heat of the laser light source module 200 and the LED light source module 100. In this way, the light source system 10 can adjust the working conditions of the laser light source module 200, the LED laser light source module 200 and the heat dissipation module 300 according to the working environment temperature, so as to ensure that the brightness and the color coordinates of the projection picture are maintained at a higher level, thereby ensuring the quality of the projection picture of the projection device 20 and further improving the user experience.

In the present utility model, the terms "mounted," "connected," and the like should be construed broadly unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection, integral connection or transmission connection; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present utility model and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and they should be included in the protection scope of the present utility model.

Claims (10)

1. A light source system, comprising:

the LED light source module comprises a laser light source module and an LED light source module, wherein one of the laser light source module and the LED light source module is used for emitting a first light beam, the other one of the laser light source module and the LED light source module is used for emitting a second light beam, and the laser light source module and the LED light source module are used for respectively adjusting working power according to the ambient temperature;

the light combining element is arranged on the emergent light paths of the laser light source module and the LED light source module and is used for reflecting the first light beam to combine with the second light beam; and

and the heat radiation module is connected with the laser light source module and the LED light source module in a heat conduction way and is used for radiating heat of the laser light source module and the LED light source module according to the ambient temperature.

2. The light source system of claim 1, wherein the light combining element has a reflective region and a light transmissive region connected, the reflective region being configured to reflect the first light beam and the light transmissive region being configured to transmit the second light beam.

3. The light source system according to claim 2, wherein the light transmitting region is provided with a light transmitting hole for transmitting the second light beam to combine with the first light beam reflected by the reflecting region.

4. The light source system of claim 2, wherein the reflective region surrounds the light transmissive region.

5. The light source system of claim 1, further comprising a controller electrically connected to the laser light source module and the LED light source module, respectively;

the controller is used for controlling the laser light source module to emit light with first power and controlling the LED light source module to emit light with second power when the ambient temperature is in a first temperature interval;

the controller is further used for controlling the laser light source module to emit light with third power and controlling the LED light source module to emit light with fourth power when the ambient temperature is in a second temperature interval, wherein any value in the second temperature interval is larger than any value in the first temperature interval, the third power is smaller than the first power, and the fourth power is larger than the second power.

6. The light source system of claim 5, wherein the controller is further electrically connected to the heat sink module, the controller is further configured to control the heat sink module to dissipate heat at a fifth power when the ambient temperature is in the first temperature range, and the controller is further configured to control the heat sink module to dissipate heat at a sixth power when the ambient temperature is in the second temperature range, the sixth power being greater than the fifth power.

7. The light source system of claim 5, wherein the laser light source module comprises an RGB laser, the controller is further configured to control a duty cycle of the RGB laser to emit red laser light to be a first duty cycle when the ambient temperature is in the first temperature interval, and the controller is further configured to control a duty cycle of the RGB laser to emit red laser light to be a second duty cycle when the ambient temperature is in the second temperature interval, the second duty cycle being less than the first duty cycle.

8. The light source system according to claim 1, wherein the LED light source module includes a first LED light source, a second LED light source, a third LED light source, a first dichroic mirror, and a second dichroic mirror, the first dichroic mirror being disposed on outgoing light paths of the first LED light source and the second LED light source, and configured to combine lights outgoing from the first LED light source and the second LED light source; the second dichroic mirror is arranged on the emergent light paths of the first dichroic mirror and the third LED light source, and is used for combining light emitted by the first dichroic mirror and the third LED light source, and red LED light sources, green LED light sources and blue LED light sources are respectively arranged in the first LED light source, the second LED light source and the third LED light source.

9. A projection apparatus, comprising:

a housing forming a mounting cavity; and

a light source system according to any one of claims 1 to 8, which is fitted to the mounting cavity.

10. The projection device of claim 9, wherein the heat dissipation module comprises a heat dissipation fan and a heat conduction component, the heat conduction component is connected to the laser light source module and the LED light source module in a heat conduction manner, and the heat dissipation fan is used for driving air flow to the heat conduction component;

the shell is also provided with an air inlet and an air outlet, the air inlet is communicated with the mounting cavity, the air inlet is opposite to the heat conduction part, and the air outlet is opposite to the cooling fan.