CN212132306U

CN212132306U - Laser lighting module

Info

Publication number: CN212132306U
Application number: CN202020334163.4U
Authority: CN
Inventors: 邹诚; 许明; 孙保伟
Original assignee: Suzhou Jingqing Photoelectric Technology Co ltd
Current assignee: Suzhou Jingqing Photoelectric Technology Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-11
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a laser lighting module, this laser lighting module include laser source unit, wavelength conversion unit, reflection unit, bottom plate and be used for the installation the light source base of laser source unit, wavelength conversion unit and reflection unit are fixed in on the bottom plate, be equipped with the curved surface structure in the reflection unit, wavelength conversion unit is located the focus department of curved surface structure, the light source base is connected to through the regulating part the bottom plate. Through installing laser source unit on the light source base to set up the regulating part between light source base and bottom plate, adjust the position of laser source unit relative wavelength conversion unit and reflection unit, make the focus department that the light beam that laser source unit sent project the wavelength conversion unit, in order to guarantee the illuminating effect, this module simple structure, small, installation and debugging are swift convenient.

Description

Laser lighting module

Technical Field

The utility model relates to the field of lighting technology, concretely relates to laser lighting module.

Background

With the development of semiconductor technology, LED (Light Emitting Diode) Light sources have the advantages of high efficiency, energy saving, environmental protection, low cost, long service life, etc., and are gradually replacing traditional incandescent lamps and energy saving lamps, becoming a general illumination Light source. However, in the application fields of stage lighting, automobile headlights, projection display and the like requiring ultra-high brightness light sources, the LED light sources are difficult to meet the requirements, and the laser light sources have the advantages of good collimation, high brightness, low energy consumption, long service life, small size and the like, so that the application in the fields is more and more common.

In the prior art, a laser light is provided, in which a laser source is disposed outside a reflector of a vehicle lamp to emit a laser beam, and the laser beam is projected onto a fluorescent material inside the reflector of the vehicle lamp, so as to excite fluorescence, and the fluorescence is reflected by the reflector of the vehicle lamp and then emitted in a specific direction, thereby forming a light beam traveling in a specific solid angle. The projection angle of the laser beam and the relative positions of the car lamp reflecting bowl and the fluorescent material are fixed, namely, the condition that the fluorescent material intersects at the focus on the inner side of the car lamp reflecting bowl is met, the laser beam penetrates through the car lamp reflecting bowl and is projected onto the fluorescent material at a certain angle, however, due to the fact that assembly errors often exist in practical application, the position of the laser beam projected onto the fluorescent material cannot meet the design requirements, and the lighting effect is finally influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the prior art, provide a small, adjust convenient laser lighting module.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a laser lighting module, includes laser source unit, wavelength conversion unit, reflection unit, bottom plate and is used for the installation the light source base of laser source unit, wavelength conversion unit and reflection unit are fixed in on the bottom plate, be equipped with the curved surface structure in the reflection unit, wavelength conversion unit is located the focus department of curved surface structure, the light source base is connected to through the regulating part the bottom plate.

Furthermore, the laser source unit and the wavelength conversion unit are respectively arranged on two sides of the curved surface structure of the reflection unit along the light path direction, and the curved surface structure is provided with a light passing part matched with the laser beam.

Furthermore, a groove corresponding to the wavelength conversion unit is arranged on the bottom plate, and the wavelength conversion unit is limited in the groove.

Furthermore, the reflection unit further comprises a plane structure which is located on two sides of the curved surface structure in the direction perpendicular to the light path and is parallel to the curved surface structure, and the wavelength conversion unit is located at the focus of the curved surface structure.

Furthermore, a horizontal extension part is arranged on the outer side of the bottom of the curved surface structure and fixed on the bottom plate.

Further, the laser source unit includes a laser source, a focusing unit, and an optical path turning unit sequentially disposed along an optical path.

Further, the light source base includes base and support, the base is connected to through the regulating part the bottom plate, the support is located on the base, and wherein one side is close to the reflection unit, be equipped with in the support respectively with the spacing groove that laser source and focusing unit and light path turning unit correspond, laser source, focusing unit and light path turning unit are installed respectively in the spacing inslot that corresponds.

Furthermore, the base is L-shaped and comprises a vertical surface and a horizontal surface, the bottom surface of the support is arranged on the horizontal surface, one side surface of the support is close to the vertical surface, the other side surface which is parallel to the vertical surface is close to the reflection unit, a light source installation groove is formed in one side, corresponding to the support, of the vertical surface of the base, a light source pressing plate is arranged on one side, away from the support, of the vertical surface, and the horizontal surface is connected with the bottom plate through an adjusting piece.

Furthermore, one side that base and support and reflection unit correspond all be equipped with the groove of stepping down of curved surface structure adaptation.

The utility model provides a laser lighting module, this laser lighting module include laser source unit, wavelength conversion unit, reflection unit, bottom plate and are used for the installation the light source base of laser source unit, wavelength conversion unit and reflection unit are fixed in on the bottom plate, be equipped with the curved surface structure in the reflection unit, wavelength conversion unit is located the focus department of curved surface structure, the light source base is connected to through the regulating part the bottom plate. Through installing laser source unit on the light source base to set up the regulating part between light source base and bottom plate, adjust the position of laser source unit, make the light beam that laser source unit sent project the focus department of wavelength conversion unit, in order to guarantee illuminating effect, this module simple structure, small, installation and debugging are swift convenient.

Drawings

Fig. 1 is a three-dimensional structure diagram of a laser lighting module according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the laser lighting module of FIG. 1;

fig. 3 is a schematic structural diagram of a reflector according to an embodiment of the present invention;

FIG. 4 is a schematic view of a bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a base according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a bottom plate according to an embodiment of the present invention.

Shown in the figure: 10. a laser light source unit; 110. a laser source; 120. a focusing unit; 130. an optical path turning unit; 20. a wavelength conversion unit; 30. a reflection unit; 310. a curved surface structure; 311. a light-passing part; 320. a planar structure; 330. a horizontal extension; 40. a base plate; 410. a groove; 50. a light source base; 510. a base; 511. a vertical plane; 512. a horizontal plane; 513. a light source mounting groove; 520. a support; 530. a light source pressing plate; 540. an arc-shaped abdicating groove; 550. a rectangular abdicating groove; 60. an adjusting member.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1-2, the utility model provides a laser lighting module, including laser source unit 10, wavelength conversion unit 20, reflection unit 30, bottom plate 40 and be used for the installation laser source unit 10's light source base 50, wavelength conversion unit 20 and reflection unit 30 are fixed in on the bottom plate 40, be equipped with curved surface structure 310 in the reflection unit 30, wavelength conversion unit 20 is located curved surface structure 310's focus department, light source base 50 is connected to through regulating part 60 bottom plate 40. Specifically, the laser beam emitted by the laser source unit 10 is projected onto the wavelength conversion unit 20 and excites fluorescence, the fluorescence is reflected by the reflection unit 30 and then emitted in a specified direction to form a light beam traveling in a specified solid angle, the reflection unit 30 is provided with a curved surface structure 310, the curved surface structure 310 may be a paraboloid, an ellipsoid or other curved surface, and only the following conditions are met: the method includes at least a part of a curved surface obtained by cutting a curved surface (parabolic curved surface) formed by revolving a parabola about a symmetry axis of the parabola as a revolving axis by a plane of the revolving axis. In optical design, the light that the laser source unit 10 sent is projected to focus department of wavelength conversion unit 20 and is made the light that wavelength conversion unit 20 sent collect and reflect the back and can realize an ideal facula through reflection unit 30, however because the existence of each side error, often there is certain deviation after the initial assembly, consequently through installing laser source unit 10 on light source base 50, and set up regulating part 60 between light source base 50 and bottom plate 40, adjust the position of laser source unit 10 relative wavelength conversion unit 20 and reflection unit 30, the focus department that the light beam that makes laser source unit 10 send is projected to wavelength conversion unit 20, in order to guarantee the illuminating effect, this module simple structure, small, the installation and debugging is swift convenient.

Preferably, the laser source unit 10 and the wavelength conversion unit 20 are respectively disposed on two sides of the curved structure 310 of the reflection unit 30 along the optical path direction, and the curved structure 310 is provided with a light passing portion 311 adapted to the laser beam. Specifically, as shown in fig. 3, the light transmitting portion 311 may be a through hole, a through hole provided with a transparent member that transmits a laser beam, or a transparent member that transmits a laser beam and is integrated with the reflection unit 30, and the transparent member that transmits a laser beam may be a transparent plate having a filter that transmits a laser beam and reflects fluorescence emitted from the wavelength conversion unit 20, so that the fluorescence emitted from the wavelength conversion unit 20 can be prevented from leaking from the light transmitting portion 311. The light-passing part 311 is used to guide the laser beam to the wavelength conversion unit 20, and may be an ellipse, a circle, or another shape, and has a size adapted to the diameter of the laser beam, so that the laser beam passes through. Mounting the laser light source unit 10 at the other side of the wavelength conversion unit 20 with respect to the reflection unit 30 facilitates flexible design of the structure and location of the laser light source unit 10 according to the spatial conditions of use and replacement.

Preferably, the reflection unit 30 further includes a plane structure 320 located on two sides of the curved structure 310 perpendicular to the optical path direction and parallel to each other, and the wavelength conversion unit 20 is located at a focal point of the curved structure 310. Specifically, in order to avoid the loss caused by light leakage and the damage to human eyes, the two sides of the curved surface structure 310 are provided with the plane structures 320 which are parallel to each other for shielding, so that the light utilization rate and the illumination safety are improved.

Referring to fig. 3, a horizontal extension portion 330 is disposed at an outer side of a bottom of the curved structure 310, and the horizontal extension portion 330 is fixed on the bottom plate 40. Specifically, the outer side of the curved structure 310 of the horizontal extension 330 extends out to be parallel to the bottom plate 40, and is fixed on the bottom plate 40 by at least two screws. In this embodiment, a positioning column may be further disposed on the bottom plate 40, so as to further improve the positioning accuracy and the installation reliability of the reflection unit 30.

As shown in fig. 6, a groove 410 corresponding to the wavelength conversion unit 20 is disposed on the bottom plate 40, and the wavelength conversion unit 20 is limited in the groove 410. Specifically, in the embodiment, the wavelength conversion unit 20 is a phosphor sheet, the position of the groove 410 corresponds to the focal position of the curved structure 310, the shape of the groove is adapted to the shape of the phosphor sheet, and the phosphor sheet is limited at the groove 410 and does not move relative to each other.

With reference to fig. 2, the laser source unit 10 includes a laser source 110, a focusing unit 120, and an optical path turning unit 130 sequentially disposed along an optical path. Specifically, in the present embodiment, there is one laser source 110, but it may also be provided in plurality according to actual needs, and the focusing unit 120 may employ a focusing lens or other focusing elements for converging the laser beam. The light path turning unit 130 is used for deflecting the laser beam to change the traveling direction of the laser beam and project the laser beam to a proper position on the upper surface of the wavelength conversion unit 20, so that the whole illumination module has a compact structure, and the light path turning unit 130 can be a plane mirror or a curved mirror, or a metal film or a dielectric film, and the like, so as to achieve the same effect.

Preferably, the light source base 50 includes a base 510 and a bracket 520, the base 510 is connected to the bottom plate 40 through the adjusting member 60, the bracket 520 is disposed on the base 510, and one side thereof is close to the reflection unit 30, a limit groove corresponding to the laser source 110, the focusing unit 120 and the light path turning unit 130 is disposed in the bracket 520, and the laser source 110, the focusing unit 120 and the light path turning unit 130 are respectively limited in the corresponding limit groove. Specifically, the laser source 110 is a laser diode, the focusing unit 120 is a focusing lens, the light path turning unit 130 is a reflector, the support 520 is sequentially provided with a cylindrical groove adapted to the shape of the laser source 110, a clamping groove adapted to the shape of the focusing unit 120, and a rectangular through groove corresponding to the light path turning unit 130, the laser source 110 is limited in the corresponding cylindrical groove, the focusing unit 120 is limited in the corresponding clamping groove, and the light path turning unit 130 is limited in the corresponding rectangular through groove.

As shown in fig. 5, the base 510 is L-shaped, and includes a vertical surface 511 and a horizontal surface 512, the bottom surface of the bracket 520 is disposed on the horizontal surface 512, one side surface of the support abuts against the vertical surface 511, the other opposite parallel side surface abuts against the reflection unit 30, a light source installation groove 513 is disposed on the side of the vertical surface 511 of the base 510 corresponding to the bracket 520, a light source pressing plate 530 is disposed on the side of the vertical surface 511 away from the bracket 520, and the horizontal surface 512 is connected to the bottom plate 40 through the adjusting member 60. Specifically, the head of the laser source 110 is disposed in a cylindrical groove in the bracket 520, and the tail is disposed in the light source mounting groove 513 of the vertical surface 511, and is connected to an external power source through the light source pressing plate 530.

As shown in fig. 4-5, the base 510 and one side of the bracket 520 corresponding to the reflection unit 30 are provided with an abdicating groove adapted to the reflection unit 30. The arc-shaped abdicating groove 540 corresponding to the curved surface structure 310 and the rectangular abdicating groove 550 corresponding to the horizontal extension part 330 are arranged on the base 510, and the arc-shaped abdicating groove 540 corresponding to the curved surface structure 310 is arranged on the support 520, so that the base 510 and the support 520 are arranged close to the reflection unit 30, the installation compactness is improved, and the volume of the lighting module is reduced.

The utility model provides a laser lighting module's adjusting method specifically does, through regulating part 60 adjusts the position of laser source unit 10 relative wavelength conversion unit 20 and reflection unit 30, makes the focus department of projecting wavelength conversion unit 20 of the light beam that laser source unit 10 sent. In this embodiment, the adjusting member 60 includes at least two adjusting screws, and the adjusting screws are disposed at intervals, specifically, the base 510 and the bottom plate 40 are connected by the two adjusting screws disposed at intervals, during the calibration process, the laser source 110 is turned on, and the relative positions of the base 510 and the bottom plate 40 are adjusted by the adjusting screws, so as to adjust the position of the laser source unit 10, and the light beam emitted by the laser source unit 10 is projected to the focal point of the wavelength conversion unit 20.

To sum up, the utility model provides a laser lighting module, this laser lighting module include laser source unit 10, wavelength conversion unit 20, reflection unit 30, bottom plate 40 and be used for the installation the light source base 50 of laser source unit 10, wavelength conversion unit 20 and reflection unit 30 are fixed in on the bottom plate 40, be equipped with curved surface structure 310 in the reflection unit 30, wavelength conversion unit 20 is located curved surface structure 310's focus department, light source base 50 is connected to through regulating part 60 bottom plate 40. Through installing laser source unit 10 on light source base 50 to set up regulating part 60 between light source base 50 and bottom plate 40, adjust the position of laser source unit 10 relative wavelength conversion unit 20 and reflection unit 30, make the light beam that laser source unit 10 sent project the focus department of wavelength conversion unit 20, in order to guarantee the illuminating effect, this module simple structure, small, the installation and debugging is swift convenient.

Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a laser lighting module, its characterized in that includes laser source unit, wavelength conversion unit, reflection unit, bottom plate and is used for installing the light source base of laser source unit, wavelength conversion unit and reflection unit are fixed in on the bottom plate, be equipped with the curved surface structure in the reflection unit, wavelength conversion unit is located the focus department of curved surface structure, the light source base passes through the regulating part and is connected to the bottom plate.

2. The laser illumination module according to claim 1, wherein the laser source unit and the wavelength conversion unit are respectively disposed on two sides of the curved structure of the reflection unit along the optical path direction, and the curved structure is provided with a light-passing portion adapted to the laser beam.

3. The laser lighting module of claim 1, wherein the base plate has a groove corresponding to the wavelength conversion unit, and the wavelength conversion unit is disposed in the groove.

4. The laser illumination module as claimed in claim 1, wherein the reflection unit further comprises a planar structure disposed on two sides of the curved structure perpendicular to the optical path direction and parallel to each other, and the wavelength conversion unit is disposed at a focal point of the curved structure.

5. The laser lighting module as claimed in claim 4, wherein the bottom of the curved structure is provided with a horizontal extension part on the outer side, and the horizontal extension part is fixed on the bottom plate.

6. The laser lighting module of claim 1, wherein the laser source unit comprises a laser source, a focusing unit and an optical path turning unit sequentially arranged along an optical path.

7. The laser lighting module of claim 6, wherein the light source base comprises a base and a bracket, the base is connected to the bottom plate through a regulating member, the bracket is disposed on the base, and one side of the bracket is close to the reflection unit, the bracket is disposed therein with a limiting groove corresponding to the laser source, the focusing unit and the light path turning unit, and the laser source, the focusing unit and the light path turning unit are respectively mounted in the corresponding limiting grooves.

8. The laser lighting module of claim 7, wherein the base is L-shaped and includes a vertical surface and a horizontal surface, the bottom surface of the bracket is disposed on the horizontal surface, one side surface of the base abuts against the vertical surface, the other side surface of the base, which is parallel to the vertical surface, abuts against the reflection unit, a light source mounting groove is disposed on a side of the vertical surface of the base corresponding to the bracket, a light source pressing plate is disposed on a side of the vertical surface away from the bracket, and the horizontal surface is connected to the bottom plate through an adjusting member.

9. The laser lighting module of claim 7, wherein the base and the bracket are provided with a recess adapted to the reflection unit at a side corresponding to the reflection unit.