CN213656343U

CN213656343U - Double-laser lighting module

Info

Publication number: CN213656343U
Application number: CN202023185782.0U
Authority: CN
Inventors: 周述举
Original assignee: Shenzhen Olight eCommerce Technology Co Ltd
Current assignee: Aolei Technology Group Co ltd; Zhongshan Aolei Technology Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-07-09
Anticipated expiration: 2030-12-26

Abstract

The utility model provides a double-laser lighting module, which comprises a shell and a laser lighting assembly arranged in the shell, wherein the laser lighting assembly comprises a light-emitting unit, a deflection convergence unit, a light color conversion unit and a light path emergent unit which are connected in turn through a light path; the light-emitting unit comprises two laser light sources, and the two laser light sources both emit blue laser; the deflection convergence unit is used for converging blue lasers emitted by the two laser light sources after deflection to form a blue light beam; the light color conversion unit is used for converting the blue light beam into a white light beam; the light path emitting unit is used for shaping and emitting the white light beam; the light beams emitted by the two laser light sources sequentially pass through the deflection convergence unit, the light color conversion unit and the light path emergent unit and are finally converged to form a white light to be emitted, so that the illumination intensity of the emitted light and the luminous flux of the laser module are improved.

Description

Double-laser lighting module

Technical Field

The utility model belongs to the technical field of the illumination, a two laser lighting module is related to.

Background

Current laser lighting all adopts single tube laser as the light source, and laser module's luminous flux is low, and the laser lighting luminance that adopts this laser module to make is not enough, and the experience that brings for the user feels relatively poor.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide a two laser lighting module, merge into one light beam with two laser and jet out, solve the problem that laser equipment luminous flux is low of current practical single tube laser.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dual laser lighting module comprising: the laser lighting assembly comprises a light emitting unit, a deflection convergence unit, a light color conversion unit and a light path emergent unit which are sequentially connected through a light path;

the light-emitting unit comprises two laser light sources, and the two laser light sources both emit blue laser;

the deflection convergence unit is used for converging blue lasers emitted by the two laser light sources after deflection to form a blue light beam;

the light color conversion unit is used for converting the blue light beam into a white light beam;

and the light path emergent unit is used for shaping the white light beam and then emitting the shaped white light beam.

Preferably, the deflection converging unit comprises a first focusing unit, a reflecting unit and a second focusing unit which are sequentially connected through an optical path, the first focusing unit is used for shaping blue laser emitted by each laser light source to obtain collimated light beams and transmitting the collimated light beams to the reflecting unit, the reflecting unit is used for reflecting the collimated light beams to the second focusing unit, and the second focusing unit is used for performing secondary shaping and focusing on the collimated light beams and converging the two collimated light beams into a blue light beam.

Further, the first focusing unit includes two collimating lenses, each collimating lens corresponds to a laser light source, and the collimating lenses are configured to shape the blue laser light emitted by the laser light sources into collimated light beams.

Preferably, the reflecting unit includes two reflecting plates and a reflecting cone, the reflecting cone is provided with two inclined planes plated with a reflecting film, the two reflecting plates are used for reflecting the collimated light beams to the two inclined planes of the reflecting cone respectively, and the reflecting cone is used for reflecting the collimated light beams to the second focusing unit.

Preferably, the second focusing unit is a condensing lens.

Preferably, the light color conversion unit comprises a fluorescent sheet, and the fluorescent sheet is a sapphire sheet coated with fluorescent powder on the surface.

The light-homogenizing sheet is arranged on the surface of the shell and used for diffusing the white light emitted by the light path emitting unit and then emitting the diffused white light.

Further, the light color conversion unit further comprises a diaphragm, and the diaphragm is arranged on one side of the light emergent surface of the fluorescent sheet and used for limiting the size of the white light beam entering the light path emergent unit.

Preferably, the light path exit unit comprises a diverging lens, and the diverging lens is used for shaping and scattering the white light beam outwards.

Preferably, the light emitting unit further comprises a driving PCB board, and pins of the two laser light sources are connected to the driving PCB board.

The utility model has the advantages that: the utility model provides a two laser lighting module assembles unit, photochromic conversion unit and light path outgoing unit through deflecting the light beam that sends two laser source in proper order, collects at last and forms one white light and jets out, has improved the illumination intensity of light-emitting and this laser module's luminous flux.

Drawings

Fig. 1 is a light path diagram of a dual laser lighting module according to an embodiment of the present invention;

fig. 2 is an exploded view of the dual laser lighting module according to an embodiment of the present invention;

fig. 3 is a top view of an embodiment of the dual laser lighting module.

The labels in the figure are: 100. a housing; 101. fixing a pressing ring; 200. driving the PCB; 300. a laser light source; 400. a collimating lens; 500. a reflective plate; 600. a reflecting cone; 700. a condenser lens; 800. a fluorescent sheet; 900. a diaphragm; 1100. a diverging lens; 1200. and (5) homogenizing the light sheet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, an embodiment of a dual laser lighting module according to the present invention is shown.

As shown in fig. 1 and 2, the dual laser lighting module includes a housing 100 and a laser lighting assembly, wherein the laser lighting assembly is disposed within the housing 100.

The dual-laser illumination assembly comprises a light emitting unit, a deflection convergence unit, a light color conversion unit and a light path emergent unit. The light emitting unit emits light rays and is sequentially connected with the deflection convergence unit, the light color conversion unit and the light path emergent unit through a light path.

The light emitting unit includes two laser light sources 300, and both the two laser light sources 300 are laser tubes emitting blue laser light. In this embodiment, the two laser light sources 300 emit blue laser with wavelength of 450 NM. When the laser focusing device is used, blue laser emitted by the two laser light sources 300 is deflected in an optical path after passing through the deflection convergence unit: the two laser light sources 300 emit two parallel blue lasers, which pass through the deflection light path and then are combined into an integral blue light beam. The blue light beam is changed into a white light beam after passing through the light color conversion unit; the white light beam is shaped by the light path emergent unit and then emitted outwards. This application converges into the light that two laser source 300 sent and sends out white laser at last with the laser module that only adopts single laser pipe, and this application has improved the luminous flux and the illumination intensity of this laser module greatly.

In this embodiment, the deflection converging unit includes a first focusing unit, a reflecting unit, and a second focusing unit, wherein the light emitting unit is connected to the first focusing unit, the reflecting unit, and the second focusing unit sequentially through an optical path. After the light-emitting unit emits the out-diffused blue laser beam, the light-emitting unit forms a collimated light beam through the first focusing unit, the collimated light beam is reflected to the second focusing unit through the reflecting unit, and secondary shaping focusing is carried out through the second focusing unit, so that two collimated light beams projected onto the second focusing unit are converged into a blue light beam.

Further, in this embodiment, the first focusing unit includes two collimating lenses 400, one collimating lens 400 corresponds to one laser light source 300, and specifically, one collimating lens 400 is disposed right in front of the light outlet of one laser light source 300, so as to ensure that the emitted light of each laser light source 300 can form a collimated light beam through the collimating lens 400.

In this embodiment, the collimating lens 400 is a single-sided convex lens, the convex surface structure of the collimating lens 400 faces the laser light source 300, and the central axis of the collimating lens 400 is located on the optical axis of the blue laser emitted by the laser light source 300.

In some embodiments, the collimating lens 400 may also be a lens with other shapes, so long as the light passing through the collimating lens 400 can be collimated and emitted.

In one embodiment, the reflection unit includes two reflection plates 500 and a reflection cone 600, the reflection cone 600 is provided with two inclined planes coated with reflection films, the two reflection plates 500 reflect the collimated light beam emitted from the first focusing unit to the inclined plane of the reflection cone 600 for the first time, and the two inclined planes of the reflection cone 600 respectively reflect the light beam projected onto the inclined plane for the second time and reflect the light beam to the second focusing unit. In this embodiment, each of the reflective plates 500 is located right in front of one of the laser light sources 300, and the reflective plate 500 is provided with a reflective surface inclined at 45 °. Two inclined planes on the reflection cone 600 are adjacently arranged, and the inclination angle of the two inclined planes is 45 degrees. The 45 ° reflecting surface of the reflecting plate 500 may make the incident angle and the exit angle of the collimated light beam both 45 °, make the collimated light beam deflected by 90 ° and then projected onto the reflecting cone 600, and the reflecting surface of the reflecting cone 600 also makes the incident angle and the exit angle of the collimated light beam both 45 °, so that the collimated light beam deflected by 90 ° is parallel to the light beam shaped by the first focusing unit. The reflecting cone 600 is located on the central axis of the dual laser module, and the central point of the connecting line between the two laser sources 300 is also located on the central axis of the dual laser module.

Specifically, the reflecting surface of the reflecting plate 500 and the reflecting surface of the reflecting cone 600 are both plated with a reflecting film with high internal temperature.

Further, in this embodiment, the second focusing unit is a condensing lens 700, and the condensing lens 700 merges the light beams reflected by the reflecting unit into an integral light spot.

In one embodiment, the light color conversion unit includes a phosphor sheet 800, and the phosphor sheet 800 is a sapphire sheet with a phosphor coated surface. The fluorescent powder layer is sintered on the surface of the sapphire sheet at high temperature, and the blue laser beams irradiate the fluorescent powder layer of the sapphire sheet to excite the fluorescent layering, so that white light is emitted, and the whole laser module can emit white light beams.

Further, in this embodiment, the dual laser module further includes a light uniformizing sheet 1200, the light uniformizing sheet 1200 is disposed on the surface of the housing 100, and specifically, the light uniformizing sheet 1200 is connected to the light path emitting unit through a light path and is used for further diffusing the light emitted by the light path emitting unit with the light uniformizing sheet 1200. The white light emitted by the light path emission unit is synthesized light, the refraction angles of the light with different wavelengths are different when the light passes through the lens, the outermost circle of a light spot formed after refraction can form a blue dark ring to influence the quality of the light spot, and the light homogenizing sheet 1200 arranged at the light outlet can adjust the light emitted by the lens and can remove the blue dark ring. Specifically, the light homogenizing sheet 1200 is glass with a atomized surface, and the surface is provided with a fine grain particle which can diffuse the whole light beam outwards by 0.5-0.75 degrees so as to eliminate a blue dark ring at the outermost ring of the formed light spot.

Further, in this embodiment, an antireflection film is coated on a surface of the light uniformizing sheet 1200 facing the light path exit unit, so that the transmittance of light in the light uniformizing lens can be improved.

Further, in this embodiment, the light color conversion unit further includes a diaphragm 900, and the diaphragm 900 is disposed on one side of the light emitting surface of the fluorescent sheet 800. The light blocking effect of the light blocking plate 900 may limit the size of the light beam passing through the light blocking plate 900. Because this embodiment adopts fluorescence piece 800 to synthesize white light, the white light after the synthesis becomes to have less strong light and stray light, is equipped with 0.8 mm's aperture on the diaphragm piece 900, can block the less strong light of white light edge and miscellaneous light through diaphragm piece 900, and only the strong light in center can pass the aperture to make the facula quality that the laser module shines out better.

In one embodiment, the light path exit unit includes a diverging lens 1100, and the diverging lens 1100 is used for shaping and scattering the white light beam to the outside.

As shown in fig. 3, in one embodiment, the light emitting unit further includes a driving PCB 200, pins of the two laser light sources 300 are connected to the driving PCB 200, and circuits of the two laser light sources 300 are electrically connected together through holes on the driving PCB 200.

In this embodiment, the housing 100 is made of a6061 aviation aluminum material, and has high thermal conductivity, and after the laser light source 300 generates heat, the heat can be conducted out. The inner walls of the housing 100 are anodized black to absorb stray light incident thereon.

In this embodiment, the housing 100 further includes a fixed pressing ring 101, and the fixed pressing ring 101 is used for mounting the diaphragm sheet 900, the fluorescent sheet 800, the divergent lens 1100 and the dodging sheet 1200 to the housing 100.

The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual laser lighting module, comprising: the laser lighting device comprises a shell (100) and a laser lighting assembly arranged in the shell (100), wherein the laser lighting assembly comprises a light emitting unit, a deflection convergence unit, a light color conversion unit and a light path emergent unit which are sequentially connected through a light path;

the light emitting unit comprises two laser light sources (300), wherein the two laser light sources (300) both emit blue laser light;

the deflection convergence unit is used for converging blue laser emitted by the two laser light sources (300) together after deflection to form a blue light beam;

2. The dual-laser illumination module of claim 1, wherein the deflection converging unit comprises a first focusing unit, a reflecting unit and a second focusing unit, which are sequentially connected through an optical path, the first focusing unit is configured to shape blue laser light emitted by each laser light source (300) to obtain collimated light beams and emit the collimated light beams to the reflecting unit, the reflecting unit is configured to reflect the collimated light beams to the second focusing unit, and the second focusing unit is configured to shape and focus the collimated light beams for the second time and converge two collimated light beams into one blue light beam.

3. The dual-laser illumination module of claim 2, wherein the first focusing unit comprises two collimating lenses (400), one collimating lens (400) corresponding to each laser light source (300), and the collimating lenses (400) are used for shaping the blue laser light emitted by the laser light sources (300) into a collimated light beam.

4. The dual laser illumination module according to claim 2, wherein the reflection unit comprises two reflection plates (500) and a reflection cone (600), the reflection cone (600) is provided with two inclined planes coated with reflection films, the two reflection plates (500) are used for respectively reflecting the collimated light beams to the two inclined planes of the reflection cone (600), and the reflection cone (600) is used for reflecting the collimated light beams to the second focusing unit.

5. The dual laser illumination module of claim 2, wherein the second focusing unit is a condenser lens (700).

6. The dual-laser illumination module as recited in claim 1, wherein the light color conversion unit comprises a phosphor sheet (800), and the phosphor sheet (800) is a sapphire sheet with a phosphor powder coated on the surface.

7. The dual-laser illumination module of claim 6, comprising a light homogenizing sheet (1200), wherein the light homogenizing sheet (1200) is disposed on a surface of the housing (100) and is configured to diffuse the white light emitted from the light path emission unit and emit the diffused white light.

8. The dual-laser illumination module of claim 6, wherein the light color conversion unit further comprises a diaphragm (900), and the diaphragm (900) is disposed on one side of the light exit surface of the phosphor plate (800) and is configured to limit the size of the white light beam entering the light path exit unit.

9. The dual laser illumination module of any one of claims 1-8, wherein the light path exit unit comprises a diverging lens (1100), and the diverging lens (1100) is used for shaping and scattering the white light beam outwards.

10. The dual laser lighting module as claimed in any one of claims 1-8, wherein the light emitting unit further comprises a driving PCB board (200), and the pins of the two laser light sources (300) are connected to the driving PCB board (200).