LASER LIGHT SOURCE DEVICE, AND ILLUMINATION SYSTEM

The present disclosure provides a laser light source device and an illumination system, which include a housing provided with an opening, a wavelength conversion component covering or embedded in the opening to seal the opening to form an airtight space with the housing, and at least one laser provided in the airtight space and configured to generate laser light. The laser light is projected to the wavelength conversion component to generate exiting light. With the above method, the present disclosure increase the utilization rate of the laser light source.

TECHNICAL FIELD

The present disclosure relates to the technical field of optics, in particular to relate to a laser light source device and an illumination system.

BACKGROUND

In a common laser light source device, a laser and a wavelength conversion component are integrally packaged in a housing, and the laser light source device has the advantages of small size and convenient application. However, due to the size limitation of the laser light source device, the exiting light generated by the laser excited by the wavelength conversion component cannot be fully utilized, resulting in waste of resources.

SUMMARY

In view of the above technical problems, the present disclosure provides a laser light source device, which can improve the utilization rate of a laser light source.

In order to solve the technical problem, the present disclosure provides a laser light source device. The laser light source device includes a housing, a wavelength conversion component, and at least one laser. The housing is provided with an opening. The wavelength conversion component covers or is embedded in the opening to seal the opening and form an airtight space with the housing. The at least one laser is provided in the airtight space and configured to generate laser light, and the laser light is projected to the wavelength conversion component to generate exiting light.

In some embodiments, the wavelength conversion component includes a transparent heat sink and a wavelength conversion member, and the transparent heat sink and the wavelength conversion member are sequentially arranged along an optical path of the laser light.

In some embodiments, the wavelength conversion component includes an antireflection coating or a dichroic film, the antireflection coating is provided at a side of the transparent heat sink opposite to the wavelength conversion member, and the dichroic film is provided between the transparent heat sink and the wavelength conversion member.

In some embodiments, the laser light source device includes a reflective component, the reflective component is provided in an airtight space and located on an optical path of the laser light, and the laser light is projected to the wavelength conversion component through the reflective component.

In some embodiments, the laser light source device includes a diffuser sheet, and the diffuser sheet is provided in the airtight space and located between the reflective component and the wavelength conversion component.

In some embodiments, the laser light source device includes a light-converging element, and the light-converging element is provided in the airtight space and located on an optical path of the laser light and configured to reduce a divergence angle of the laser light.

In some embodiments, the housing includes a base, the at least one laser is provided on the base, and a side surface of the housing opposite to the base is provided with the opening.

In some embodiments, the laser light source device includes a laser heat sink, the laser heat sink is provided in the airtight space, the at least one laser is fixed on the base through the laser heat sink, and the laser is parallel or perpendicular to the base, or is inclined relative to the base.

In some embodiments, the laser light source device includes a thermal conductive member, and the thermal conductive member is in thermal contact with the wavelength conversion component.

In some embodiments, the thermal conductive member is in thermal contact with both the wavelength conversion component and the base.

In some embodiments, the at least one laser comprises at least two lasers provided in the airtight space, and light spots of laser light generated by the at least two lasers projected to the wavelength conversion component at least partially overlap.

In order to solve the above technical problem, the present disclosure provides an illumination system, the illumination system includes the above laser light source device.

The present disclosure has the following beneficial effects. Different from the related art, the laser light source device in the present disclosure is provided with the opening in the housing, and the wavelength conversion component is embedded in the opening to seal the opening, so that the wavelength conversion component may excite laser light projected by the laser on the housing to generate fluorescence. In this way, the surface where the fluorescence is excited by the wavelength conversion component can directly serve as the light-exiting surface of the exiting light, so that all fluorescence excited by the wavelength conversion component can be emitted as the exiting light, thereby improving the utilization rate of the fluorescence. The wavelength conversion component is used as a part for sealing the housing without providing the wavelength conversion component in the housing, so that the size of the laser light source device and the cost are reduced. The wavelength conversion component is embedded in the opening to form an enclosed space with the housing, which does not affect the tightness of the laser light source device and ensures the reliability of the laser light source device.

DESCRIPTION OF EMBODIMENTS

The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the embodiments of the present disclosure. The described embodiments are only some of the embodiments of the present disclosure, rather than all of them. All other implementations, based on the implementations of the present disclosure, obtained by those skilled in the art shall fall within the scope of the present disclosure. The “first” and “second” described in the present disclosure do not represent a sequence, and are just used for indication. The “and/or” described in the present disclosure is only used to describe the associated relationship of the associated objects, indicating that three relationships, and is not used to limit the associated relationship.

In a laser light source device, a wavelength conversion member of the laser light source device is generally provided in a housing. Although such configuration makes the overall structure of the laser light source device more compact, the distance between the light-exiting surface of the light source device and the wavelength conversion member (such as the fluorescent sheet) is relatively long, and thus the exiting light has a relatively large divergence angle before being projected to the light-exiting surface. Due to the size of the light-exiting surface, only a part of the light can be emitted through the light-exiting surface, thereby reducing the utilization rate of the exiting light.

In view of the above technical problems, the present disclosure provides the following embodiments.

FIG.1is a side-view sectional diagram of a laser light source device according to a first embodiment of the present disclosure. As shown inFIG.1, in this embodiment, the laser light source device10includes a housing11, a wavelength conversion component12, and a laser13.

For example, in this embodiment, the housing11is provided with an opening112, and the wavelength conversion component12covers or is embedded in the opening112to seal the opening112and form an airtight space with the housing11, the laser13is provided in the airtight space and configured to generate laser light, and the laser light is projected to the wavelength conversion component12to generate exiting light.

In some embodiments, the wavelength conversion component12includes a transparent heat sink121and a wavelength conversion member122, and the transparent heat sink121and the wavelength conversion member122are sequentially arranged along an optical path of the laser light.

In this embodiment, the laser light generated by the laser13may be projected to the transparent heat sink121, and the thickness of the transparent heat sink121is not limited herein. The transparent heat sink121and the wavelength conversion member122are sequentially arranged along the optical path of the laser light, and the laser light projected to the transparent heat sink121can transmit through the transparent heat sink121and then is projected to the wavelength conversion member122, thereby the wavelength conversion member122can perform wavelength conversion on the projected laser light to form the exiting light.

For example, in some embodiments, the wavelength conversion member122may be a fluorescent powder layer coated on the transparent heat sink121, or a fluorescent sheet covering the transparent heat sink121, or the like, which is not limited herein.

The transparent heat sink121may transmit a laser beam, and a material of the transparent heat sink121may be flexibly provided according to requirements, for example, the transparent heat sink121is a sapphire material whose thermal conductivity is relatively large, which can increase a heat dissipation speed.

In some embodiments, the wavelength conversion component12includes an antireflection coating or a dichroic film (not shown in drawings), the antireflection coating may be provided at a side of the transparent heat sink121opposite to the wavelength conversion member122, and the dichroic film may be provided between the transparent heat sink121and the wavelength conversion member122.

For example, the antireflection coating transmissive to a laser beam may be provided on a surface of the transparent heat sink121facing towards the laser13, or the dichroic film may be provided between the transparent heat sink121and the wavelength conversion member122, and both the antireflection coating and the dichroic film may transmit laser light and reflect fluorescence to increase a conversion rate of the laser light.

In some embodiments, the housing11includes a base111, the laser13is provided on the base111, and a side surface of the housing11opposite to the base111is provided with the opening112.

For example, in some embodiments, the opening112may has a size equal to the traversal area of the zone encompassed by the side walls of the housing11, the wavelength conversion component12may cover the opening112and be fixedly and hermetically connected to the side wall of the housing11, the wavelength conversion component12and the base111form two opposite side walls of the housing11, and the wavelength conversion component12and the housing11may be air-tightly connected to each other by a sealing material, so as to ensure the laser chip to work reliably for a long time. The sealing material may be glass, tin solder, glue, gold tin, or the like.

In some embodiments, as shown inFIG.1, the sealing material may be a thin layer of material on an interface between the wavelength conversion component12and the housing11, and may completely cover the interface between the wavelength conversion component12and the housing11, or may partially cover the interface between the wavelength conversion component12and the housing11; or may be provided on a side wall of the housing11corresponding to the interface, or provided in a filling groove (not shown in drawings) in the wavelength conversion component12so that the sealing material in the filling groove may be used to air-tightly connect the wavelength conversion component12with the housing11when the wavelength conversion component12abuts against the housing11.

In some embodiments, in the above application scenario, the arrangement of the sealing material does not affect the interface where the wavelength conversion component12abuts against the housing11, and in other application scenarios, the airtight space formed by the wavelength conversion component12and the housing11through the sealing material is not limited to the above methods.

FIG.2is a side-view sectional diagram of a laser light source device according to a second embodiment of the present disclosure. In some embodiments, as shown inFIG.2, in a laser light source device20of the present embodiment, the configurations of a wavelength conversion component22, a housing21and a laser23may be respectively the same as the configurations of the wavelength conversion component, the housing, and the laser that are presented in the first embodiment, and details are not repeated herein. Different from the first embodiment, the sealing material suitable for the airtight connection between the wavelength conversion component22and the housing21in this embodiment has a relatively large thickness, and is spread on the interface where the wavelength conversion component22abuts against the housing21. The thickness and sealing material are not limited herein. For example, in some embodiments, the wavelength conversion component22and the housing21may not directly abut against each other to achieve airtight connection, but instead are air-tightly connected by using a sealing material, and technical effects are the same as those presented in the previous embodiment, and details are not repeated herein.

In some embodiments, in some application scenarios, the wavelength conversion component may also be embedded in the opening and fixedly and hermetically connected to the side wall of the housing.FIG.3is a side-view sectional diagram of a laser light source device according to a third embodiment of the present disclosure.

As shown inFIG.3, in the laser light source device30, by adjusting the size of the wavelength conversion component32, the wavelength conversion component32can abut against a surface of the side wall of the housing31facing towards the airtight space, and the airtight connection between the wavelength conversion component32and the housing31is realized through the airtight connection method presented in the first embodiment.

In some embodiments, in some application scenarios, a step may be provided on a vertical side wall of the base311to form a stepped opening312, and the wavelength conversion component32is provided in a stepped groove formed by the step, and a surface of the wavelength conversion component32facing towards the base311may abut against the side wall of the housing31, or a side surface of the wavelength conversion component32perpendicular to the base311may abut against the side wall of the housing31, or both a bottom surface and a side surface of the wavelength conversion component32may abut against the side wall to form an airtight space with the housing31.

In some embodiments, an airtight material may be provided between the bottom surface of the wavelength conversion component32and the side wall of the housing31, or an airtight material may be provided between the side surface of the wavelength conversion component32and the side wall of the housing31, or an airtight material may be provided between the bottom surface of the wavelength conversion component32and the side wall of the housing31and also provided between and the side surface of the wavelength conversion component32and the side wall of the housing31, which can be flexibly adjusted according to specific application scenarios and not limited herein.

In this embodiment, other configurations of the laser33and the wavelength conversion component32may be respectively the same as the configurations of the laser and the wavelength conversion component that are presented in the above embodiments, and details are not repeated herein.

In some embodiments, in some application examples, the housing may include a base and a cover, the cover and the base are provided at two opposite side walls of the housing, respectively, and the opening may be provided in the cover.FIG.4is a side-view sectional diagram of a laser light source device according to a fourth embodiment of the present disclosure. As shown inFIG.4, in the laser light source device40in this embodiment, the housing41includes a base411and a cover413, the base411and the cover413are respectively provided at two opposite sides of the housing41, the opening412is provided in the cover413, and the wavelength conversion component42covers or is embedded in the opening412to seal the housing41, to form an airtight accommodation space that may accommodate a laser43and a reflective component44.

In this embodiment, the cover413may be a metal cover, and the metal cover and the housing41may be directly fused together by a process, such as a parallel seal welding process, or a resistance welding process, or a laser welding process.

The configuration of the laser43may be the same as the configuration of the laser presented in any one of the above embodiments, and details are not repeated herein.

In some embodiments, the laser light source device may include a reflective component, the reflective component is provided in the airtight space and located on an optical path of the laser light, and the laser light is projected to the wavelength conversion component through the reflective component.

Taking the fourth embodiment as an example, a reflective surface of the reflective component44may be provided to face towards a laser emergent end of the laser43, and the laser light emitted by the laser43may be projected to the reflective surface of the reflective component44. The laser43and the opening412are respectively provided at two opposite sides of the housing41, and both the laser43and the reflective component44may be provided and fixed on the base411, laser light generated by the laser43may be projected to the reflective surface of the reflective component44, and the laser light reflected by the reflective surface exits towards the opening412opposite to the base411, so that the reflected laser light may be projected to the wavelength conversion component42, thereby realizing laser wavelength conversion.

In some embodiments, a vertical projection of the opening412on the base411may cover the reflective component44, so that the laser light reflected by the reflective component44can be collected by the wavelength conversion component42more, thereby improving the conversion efficiency of the laser and reducing the waste of laser resources.

The reflective component44may be a reflective plane mirror, a total reflection prism, or a lens plated with a highly reflective metal surface, or may be a reflective element in other forms, and the reflective component44may be in a shape of a triangle shown in the figure, in other shapes as required.

In some embodiments,FIG.5is a side-view sectional diagram of a laser light source device according to a fifth embodiment of the present disclosure.

As shown inFIG.5, in this embodiment, the reflective component54may be a lens integrated with a reflector, a surface of the reflective component54close to the laser53may be a spherical surface or a cylindrical surface and is configured to reduce a divergence angle of the laser beam, and a surface for reflecting the laser light is an oblique surface and configured to reflect laser beam to the wavelength conversion component52.

Other configurations in this embodiment may be respectively the same as the configurations presented in any one of the first to fourth embodiments, and details are not repeated herein.

In some embodiments,FIG.6is a side-view sectional diagram of a laser light source device according to a sixth embodiment of the present disclosure.

As shown inFIG.6, in this embodiment, the reflective component64may be a concave reflector, a reflective surface for reflecting laser light is concave to converge a divergence angle of a laser beam and reflect the laser light to the wavelength conversion component62. The reflective concave surface may be a spherical surface, an aspheric surface, a cylindrical surface, a parabolic concave surface, or the like, which is not limited herein.

Other configurations in this embodiment may be respectively the same as the configurations presented in any one of the first to fourth embodiments, and details are not repeated herein.

In some embodiments,FIG.7is a side-view sectional diagram of a laser light source device according to a seventh embodiment of the present disclosure.

As shown inFIG.7, in this embodiment, the reflective component74may be a light guide, an oblique reflective surface is provided at an end of the light guide, and a light beam generated by the laser73is coupled into the light guide and then is reflected multiple times in the light guide, and then is reflected and emitted to the wavelength conversion component72at the end of the light guide.

The light guide may be a square light guide, a circular light guide, or an optical fiber. After the laser beam is reflected and propagated multiple times in the light guide, the laser beam is homogenized, so that light intensity of light spots of the laser light incident to the wavelength conversion component72is relatively uniform, which avoid the problem of fluorescence quenching.

Other configurations in this embodiment may be respectively the same as the configurations presented in any one of the first to fourth embodiments, and details are not repeated herein.

In some application examples, the laser light source device includes a laser heat sink, the laser heat sink is provided in an airtight space, at least one laser is fixed on the base through the laser heat sink, and the laser is parallel or perpendicular to the base, or is inclined relative to the base.

In some embodiments,FIG.8is a side-view sectional diagram of a laser light source device according to an eighth embodiment of the present disclosure. As shown inFIG.8, in this embodiment, the laser light source device80includes a laser heat sink85, the laser heat sink85is provided in the airtight space, and the at least one laser83is fixed on the base through the laser heat sink85.

In this embodiment, the configurations of the wavelength conversion component82, the housing81, and the reflective component84may be respectively the same as the configurations of the wavelength conversion component, the housing, and the reflective component that are presented in any one of the above embodiments, and details are not repeated herein.

For example, in this embodiment, the laser heat sink85may be provided between the laser83and the base811and fixedly connected to the base811, and the laser83is fixedly provided on a surface of the laser heat sink85facing away from the base811, so that heat generated by the laser83may be conducted to the base811through the laser heat sink85, and dissipated outside the housing81through the base811, thereby improving heat dissipation performance of the laser light source device80. The laser83is parallel to the base811, that is, light generated by the laser83is parallel to the base811.

In some application examples, the laser light source device includes a diffuser sheet, and the diffuser sheet is provided in the airtight space and located between the reflective component and the wavelength conversion component. In some embodiments, in order to ensure the diffusion effect of the diffusion sheet, a vertical projection of the diffusion sheet on the base may cover the reflective component, and in other application examples, the vertical projection of the diffusion sheet on the base may not completely cover the reflective component, which is not limited herein.

FIG.9is a side-view sectional diagram of a laser light source device according to a ninth embodiment of the present disclosure.

In this embodiment, the configurations of the housing91, the wavelength conversion component92, the laser93and the reflective component94in the laser light source device90may be respectively the same as the configurations of the housing, the wavelength conversion component, the laser, and the reflective component in the laser light source device that are presented in any one of the above embodiments, which is not limited herein.

For example, in this embodiment, a diffuser sheet96is provided in front of the wavelength conversion component92and the reflective component94, and a vertical projection of the diffuser sheet96on the base911covers the reflective component94. The diffuser sheet96is configured to expand a light spot of the laser light, and the diffuser sheet96may be elliptical Gaussian or circular Gaussian, and the diffuser sheet96may be inclined to change the shape of the light spot.

In some application examples, the laser light generated by the laser in the laser light source device may not be reflected, and may be directly projected to the wavelength conversion component to be converted into the exiting light. Referring toFIG.10,FIG.10is a side-view sectional diagram of a laser light source device according to a tenth embodiment of the present disclosure.

As shown inFIG.10, in this embodiment, the laser light generated by the laser103in the laser light source device100may be directly projected on the wavelength conversion component102. In some embodiments, the laser heat sink105may be fixed on the base1011, and the laser103may be provided on a surface of the laser heat sink105facing away from the base1011, for example, a surface of the laser heat sink105facing away from the base1011may be an oblique surface, so that the laser103is inclined relative to the base1011, so that a laser exiting end of the laser73fixed to the oblique surface faces towards an opposite side of the base1011, thereby the laser light generated by the laser103may be directly projected on the wavelength conversion component102to form exiting light.

In this embodiment, the configurations of the housing101and the wavelength conversion component102may be respectively the same as the configurations of the housing and the wavelength conversion component that are presented in any one of the above embodiments, and details are not repeated herein.

FIG.11is a side-view sectional diagram of a laser light source device according to an eleventh embodiment of the present disclosure. As shown inFIG.11, in the laser light source device200provided in this embodiment, the laser heat sink205is fixed on the base2011, the laser203may be fixed on a side surface of the laser heat sink205perpendicular to the base2011, or may be embedded in the laser heat sink205in a direction perpendicular to the base2011, so that a laser exiting end of the laser203faces towards the wavelength conversion component202, that is, making the laser203be perpendicular to the base2011, thereby leading the laser light generated by the laser203to be directly projected on the wavelength conversion component202to form exiting light.

In this embodiment, the configurations of the housing201and the wavelength conversion component202may be respectively the same as the configurations of the housing and the wavelength conversion component that are presented in any one of the above embodiments, and details are not repeated herein.

In some application examples, the laser light source device may include a light-converging element, and the light-converging element is provided in the airtight space and located on an optical path of the laser light and configured to reduce a divergence angle of the laser light.

FIG.12is a side-view sectional diagram of a laser light source device according to a twelfth embodiment of the present disclosure. As shown inFIG.12, the laser light source device300includes a light-converging element307, the light-converging element307may be provided at a laser exiting end of the laser303, laser light generated by the laser303is projected to the light-converging element307first, the light-converging element307may reduce a divergence angle of the laser light, and the laser light transmitted by the light-converging element307is projected on the wavelength conversion component302to form exiting light.

The light-converging element307may be a light converging lens, a cylindrical mirror, or the like, and the divergence angle of the laser light is adjusted by the light-converging element307to obtain an exiting light spot with a target shape and size, and the selection of the light-converging element307may be flexibly provided according to the requirements of the exiting light spot, which is not limited herein.

In this embodiment, the configurations of the wavelength conversion component302, the housing301, the laser heat sink305, and the laser303may be respectively the same as the configurations of the wavelength conversion component, the housing, the laser heat sink, and the laser that are presented in any one of the above embodiments, and details are not repeated herein. In addition to the configuration of the light-converging element307presented in this embodiment, the light-converging element307may be provided at another position on an optical path from the laser light generated by the laser303to the wavelength conversion component302. In addition to this embodiment, all other embodiments of the present disclosure may be provided with the light-converging element307.

In some application examples, the laser light source device includes a thermal conductive member, and the thermal conductive member is in thermal contact with the wavelength conversion component and provided in the airtight space, and abuts against both the wavelength conversion component and the base, and is provided out of the optical path of the laser light.

FIG.13is a side-view sectional diagram of a laser light source device according to a thirteenth embodiment of the present disclosure.

As shown inFIG.13, in the present embodiment, the laser light source device400includes a thermal conductive member408, and the thermal conductive member408abuts against, in the airtight space, a surface of the wavelength conversion component402and a surface of the base4011opposite to the surface of the wavelength conversion component402, so as to conduct heat generated by the wavelength conversion component402to the base4011through the thermal conductive member408, so that the heat generated by the wavelength conversion component402can be conducted out through the base4011to prevent the overall temperature of the laser light source device400from being too high to affect its reliability. The thermal conductive member408is provided out of the optical path of the laser light, which does not shield the optical path of the laser light projected to the wavelength conversion component402.

The configurations of the laser403, the housing401and the wavelength conversion component402may be respectively the same as the configurations of the laser, the housing, and the wavelength conversion component that are presented in any one of the above embodiments, and details are not repeated herein.

In some embodiments, in some application settings, the thermal conductive member may also be in thermal contact with both the wavelength conversion component and the base, the laser light source device includes a heat dissipation block, and the heat dissipation block is provided on the light-exiting surface of the exiting light and is out of the optical path of the exiting light.

FIG.14is a side-view sectional diagram of a laser light source device according to a fourteenth embodiment of the present disclosure.

As shown inFIG.14, in this embodiment, the laser light source device500includes at least one heat dissipation block509, and the at least one heat dissipation block509is provided on a surface of the wavelength conversion component502away from the base5011and does not shield an optical path of the exiting light, and does not affect the light spot of the exiting light. In some embodiments, the housing501may be provided with a protrusion5013connecting the heat dissipation block509and the base5011. In some embodiments, the heat generated by the wavelength conversion component502may be conducted to the base5011through the heat dissipation block509and the protrusion5013, thereby preventing the temperature of the wavelength conversion component502from being too high to affect its reliability.

In this embodiment, the configurations of the laser503, the reflective component504, and other elements may be respectively the same as the configurations of the laser, the reflective component, and other elements that are presented in any one of the above embodiments, and details are not repeated herein.

In some embodiments, at least two lasers are provided in the airtight space of the laser light source device, and light spots of the laser light generated by the at least two lasers projected to the wavelength conversion component at least partially overlap.FIG.15is a side-view sectional diagram of a laser light source device according to a fifteenth embodiment of the present disclosure.

As shown inFIG.15, in this embodiment, the number of the lasers603may be two, the reflective component604may include two reflective surfaces or two reflective elements, and the two reflective surfaces or the two reflective elements are in one-to-one correspondence with the two lasers603and each can reflect the laser light generated by the corresponding laser603to the wavelength conversion component602to form the exiting light.

In some application examples, the laser light generated by multiple lasers603is reflected by the reflective component604and then projected to the wavelength conversion component602, and when the laser light generated by different lasers603is correspondingly projected to the wavelength conversion component602, different light spots corresponding to different lasers603may overlap, or may partially overlap, or may not overlap at all, and a required shape of a light spot of the exiting light may be combined according to actual application requirements, thereby increasing flexibility of an application scenario of the laser light source device600.

The configurations of the housing601and the wavelength conversion component602may be respectively the same as the configurations of the housing and the wavelength conversion component that are presented in any one of the above embodiments, and details are not repeated herein.

In any one of the above embodiments, an electrode (not shown) of at least one laser is connected to an electrode (not shown) of the housing.

An external interface of the electrode of the housing and a thermal conduction external surface of the laser may be located on one plane, the external interface of the electrode of the housing may be provided on a side surface of the housing.

In view of the above, in the present disclosure, the wavelength conversion component is provided on the housing, so that the fluorescence converted by the wavelength conversion component may be directly emitted out without passing through the housing, which can reduce the reflection of the exiting light and increase the utilization rate of the laser light source. In the present disclosure, the wavelength conversion component and the housing are provided together to form the airtight space, so that the reliability of the laser light source device can be improved. In the present disclosure, the wavelength conversion component is provided out of the airtight space, so that the volume of the airtight space can be reduced, and the compactness of the overall structure of the laser light source device is increased.

In some specific application examples, the present disclosure provides an illumination system including at least one laser light source device according to any one of the above embodiments. The illumination system can be used for daily illumination, projection, or the like, and is not limited to a projector, a stage light, a vehicle lamp, a flashlight, a searchlight and the like.

The above merely illustrates implementations of the present disclosure, and is not intended to limit the patent scope of the present disclosure, and any transformation of equivalent structure or equivalent process made according to the specification and accompanying drawings of the present disclosure, or other directly or indirectly applications to related technical fields, are also fall within the scope of the present disclosure.