Light source module and lamp

Abstract

The invention discloses a light source module and a lamp, and relates to the technical field of illumination. The light source module comprises a light source, a first reflector and a light distribution assembly, the first reflector is provided with a first light inlet, a first light outlet and a first reflecting surface, the first reflecting surface is connected between the first light inlet and the first light outlet, and the light source is arranged at the first light inlet; the light distribution assembly is arranged in the containing cavity of the first reflector and located on the main optical axis of the light source, the first reflecting face and the light distribution assembly both face the light source, light emitted by the light source forms parallel light beams after passing through the first reflecting face and the light distribution assembly, and the parallel light beams are located on the main optical axis of the light source. And the parallel light beams are emitted from the first light outlet. The problem that secondary light spots exist in light spots formed by light emitted by an existing light source module is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lighting, and particularly relates to a light source module and a lamp. Background Art

[0002] With the development of lighting technology, lamps are not only used for lighting but also for environmental decoration. For example, light and shadow effects are used to create and enrich the visual effects of a space, or light changes are used to render the environmental atmosphere. However, due to uneven light distribution of the light source modules of some lamps on the market, stray light exists in the emitted light, resulting in secondary light spots in the formed light spots, thus affecting the lighting effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a light source module and a lamp to solve the problem of secondary light spots in the light spots formed by the light emitted from the current light source module.

[0004] To solve the above technical problems, the present invention is implemented as follows:

[0005] In a first aspect, the technical solution of the present invention provides a light source module, including a light source, a first reflector, and a light distribution component.

[0006] The first reflector is provided with a first light inlet, a first light outlet, and a first reflection surface. The first reflection surface is connected between the first light inlet and the first light outlet, and the light source is disposed at the first light inlet.

[0007] The light distribution component is disposed in the accommodation cavity of the first reflector, and the light distribution component is located on the main optical axis of the light source. Both the first reflection surface and the light distribution component face the light source. The light emitted by the light source forms a parallel light beam after passing through the first reflection surface and the light distribution component, and the parallel light beam is emitted from the first light outlet.

[0008] Optionally, the curved surface formed by the rotation of the connection line between the center point of the light source and the edge of the first light outlet around the main optical axis of the light source intersects with the second light inlet of the light distribution component.

[0009] Optionally, the light distribution component includes a second reflector. The second reflector is provided with the second light inlet, a second light outlet, and a second reflection surface. The second reflection surface is connected between the second light inlet and the second light outlet. The second light inlet faces the light source, the second light outlet faces the first light outlet, and part of the light passes through the second light inlet and is reflected by the second reflection surface and then emitted from the second light outlet.

[0010] Optionally, the light distribution component further includes a lens connected to the second reflector. The lens is disposed between the second light outlet and the first light outlet. An outgoing light surface is provided on a side of the lens facing away from the second reflector. The light emitted from the second light outlet forms part of the parallel light beam after passing through the lens.

[0011] Optionally, at least one of the first reflecting surface and the second reflecting surface is an arc-shaped concave surface.

[0012] Optionally, the lens is a convex lens.

[0013] Optionally, one end of the lens close to the second reflector has a flange portion, and the flange portion is attached to a side of the second reflector facing the lens.

[0014] Optionally, the second light inlet is larger than the second light outlet.

[0015] Optionally, the light source module further includes: a light shield. The light shield is disposed at an end of the first reflector away from the light source. A receiving space of the light shield is communicated with the first light outlet, so that the parallel light beam passes through the light shield and is emitted. A plurality of grooves are provided on an inner side wall of the light shield along its circumferential direction.

[0016] Optionally, each of the grooves is a strip-shaped groove. An extending direction of the strip-shaped groove is the same as an extending direction of the light shield. The groove includes a connected first inclined surface and a second inclined surface, and the first inclined surfaces of adjacent grooves are connected to the second inclined surfaces.

[0017] Optionally, in an extending direction of the first reflector towards the light shield, cross-sectional areas of both the first reflector and the light shield gradually increase;

[0018] An annular light-blocking portion is provided on an outer peripheral surface of the light shield. The annular light-blocking portion covers a fitting gap between the light shield and the first reflector, and the annular light-blocking portion cooperates with the first reflector.

[0019] In a second aspect, an embodiment of the present application further provides a lamp, which includes a lamp body and the above-mentioned light source module, and the light source module is disposed on the lamp body.

[0020] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0021] In the light source module provided by the technical solution of the present invention, a light distribution component is additionally arranged in the accommodation cavity of the first reflector, and the light distribution component is located on the main optical axis of the light source. Both the first reflecting surface and the light distribution component face the light source. The light emitted by the light source forms a parallel light beam and exits from the first light outlet after passing through the first reflecting surface and the light distribution component. That is to say, all the light rays exiting from the first light outlet need to be shaped by the first reflecting surface and the light distribution component to reduce stray light, so as to form a parallel light beam, improve the uniformity of the light rays exiting from the first light outlet, and further avoid the formation of secondary light spots. Therefore, the embodiments of the present application are beneficial to solving the problem of the existence of secondary light spots in the light spots formed by the light rays emitted by the current light source module. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the light source module according to the embodiment of the present invention.

[0023] Description of the Reference Numerals:

[0024] 100 - Light source;

[0025] 200 - First reflector, 210 - First light inlet, 220 - First light outlet, 230 - First reflecting surface;

[0026] 300 - Light distribution component, 310 - Second reflector, 311 - Second light inlet, 312 - Second light outlet, 313 - Second reflecting surface, 320 - Lens, 321 - Light emitting surface, 322 - Flange portion;

[0027] 400 - Light shield, 410 - Annular light blocking portion;

[0028] 500 - Mounting plate. Detailed Embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0030] The terms "first", "second", etc. in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0031] The light source module and the lamp provided by the technical solution of the present invention are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0032] like Figure 1 As shown, an embodiment of the present invention provides a light source module, which includes a light source 100 , a first reflector 200 and a light distribution component 300 .

[0033] Optionally, the light source 100 may be an LED lamp, or other types of light sources, which is not specifically limited in the embodiments of the present application.

[0034] Optionally, the light source module also includes a mounting plate 500, and the light source 100 is arranged on the mounting plate 500. The light source 100 can be located in the first light entrance 210, and the mounting plate 500 can cover the first light entrance 210; or, part of the mounting plate 500 is located in the first light entrance 210, and the peripheral surface of the mounting plate 500 is in contact with the first light entrance 210, thereby blocking the first light entrance 210 to prevent light emitted by the light source 100 from being emitted from the first light entrance 210 and causing light leakage.

[0035] The first reflector 200 is provided with a first light inlet 210, a first light outlet 220 and a first reflective surface 230. The first reflective surface 230 is connected between the first light inlet 210 and the first light outlet 220. The first reflective surface 230 faces the first light inlet 210 and the first light outlet 220 respectively. The light source 100 is arranged at the first light inlet 210, that is, the light emitted by the light source 100 is emitted from the first light inlet 210 into the accommodating cavity of the first reflector 200. Optionally, the first reflector 200 can be a reflective cup, which has the function of converging light, thereby improving the utilization rate of the light emitted by the light source 100.

[0036] The light distribution component 300 is disposed in the accommodation cavity of the first reflector 200 and is located on the principal optical axis of the light source 100. Optionally, the light distribution component 300 can be disposed in the accommodation cavity of the first reflector 200 through components such as an additional bracket. The first reflecting surface 230 and the light distribution component 300 both face the light source 100. The light distribution component 300 faces the first light inlet 210 and the first light outlet 220 respectively. The light emitted by the light source 100 forms a parallel light beam after passing through the first reflecting surface 230 and the light distribution component 300, and this parallel light beam is emitted from the first light outlet 220. That is, among the light emitted by the light source 100, part of the light is incident on the first reflecting surface 230 and is reflected to form a parallel light beam and is emitted from the first light outlet 220, and the other part of the light is incident on the light distribution component 300 and is shaped by the light distribution to form a parallel light beam and is emitted from the first light outlet 220.

[0037] In the light source module provided by the technical solution of the present invention, a light distribution component 300 is additionally disposed in the accommodation cavity of the first reflector 200, and this light distribution component 300 is located on the principal optical axis of the light source 100. The light emitted by the light source 100 forms a parallel light beam after passing through the first reflecting surface 230 and the light distribution component 300 and is emitted from the first light outlet 220. That is to say, all the light emitted from the first light outlet 220 needs to be shaped by the first reflecting surface 230 and the light distribution component 300 to reduce stray light, so as to form a parallel light beam, improve the uniformity of the light emitted from the first light outlet 220, and further avoid the formation of secondary light spots. Therefore, the embodiment of the present application is beneficial to solving the problem that there are secondary light spots in the light spots formed by the light emitted by the current light source module.

[0038] It should be noted that since the light emitted by the light source 100 is in a scattered state, the scattered light forms a parallel light beam after changing its propagation direction through the first reflector 200 and the light distribution component 300 and is emitted. At this time, the boundary of the light spot formed by this part of the light is clearer, which is beneficial to improving the lighting effect.

[0039] In an optional embodiment, the curved surface formed by the rotation of the connection line between the center point of the light source 100 and the edge of the first light outlet 220 around the principal optical axis of the light source 100 intersects the second light inlet 311 of the light distribution component 300. That is, among all the light incident on the first light inlet 210, part of the light is incident on the first reflecting surface 230, and the remaining light is incident on the light distribution component 300 to ensure that all the light emitted from the first light outlet 220 is shaped, thereby improving the uniformity of the light emitted from the first light outlet 220. Of course, in other embodiments, the curved surface formed by the rotation of the connection line between the center point of the light source 100 and the edge of the first light outlet 220 around the principal optical axis of the light source 100 may not intersect the second light inlet 312, but is as close as possible to the second light inlet 312.

[0040] In an alternative embodiment, the light distribution component 300 includes a second reflector 310. The second reflector 310 is provided with a second light inlet 311, a second light outlet 312, and a second reflecting surface 313. The second reflecting surface 313 is connected between the second light inlet 311 and the second light outlet 312. Optionally, the second reflector 310 can be a reflector cup, which has the function of converging light. The second light inlet 311 faces the light source 100, that is, the second light inlet 311 faces the first light inlet 210, and the second light outlet 312 faces the first light outlet 220. Part of the light passes through the second light inlet 311, is reflected by the second reflecting surface 313, and then exits from the second light outlet 312, that is, the light entering the second reflector 310 is reflected by the second reflecting surface 313 and then exits from the second light outlet 312, so as to remove the stray light in the light entering the second reflector 310, thereby shaping this part of the light and making it exit along the direction parallel to the main optical axis of the light source 100, thereby improving the uniformity of this part of the light. Of course, the second reflector 310 can also be a collimator or the like.

[0041] Optionally, the structure of the second reflector 310 can be similar to or the same as the structure of the first reflector 200, so that the light reflected by the second reflecting surface 313 directly forms a parallel light beam and then exits from the first light outlet 220.

[0042] Alternatively, in other alternative embodiments, the light distribution component 300 further includes a lens 320 connected to the second reflector 310. The lens 320 is disposed between the second light outlet 312 and the first light outlet 220. The side of the lens 320 facing away from the second reflector 310 is provided with a light-emitting surface 321. The light exiting from the second light outlet 312 forms the partial parallel light beam described above after passing through the lens 320. That is to say, the light entering the second light inlet 311 first changes its propagation path through the second reflecting surface 313 for one shaping, and then changes its propagation path through the lens 320 for another shaping, so as to further remove the stray light in this part of the light, thereby improving the uniformity of the central light.

[0043] In the above embodiments, the focus of the light-emitting surface 321 can be located on the central axis of the second light outlet 312. This focus can be located on the side of the light-emitting surface 321 facing away from the first light outlet 220. The second reflecting surface 313 is an arc-shaped concave surface. The light entering the second light inlet 311 is reflected by the second reflecting surface 313 and converges at the focus of the light-emitting surface 321. The central axis of the second light outlet 312 coincides with the main optical axis of the light source 100. At this time, among the light emitted by the light source 100, the light entering the second light inlet 311 takes the main optical axis as its central axis, first shoots towards the second reflecting surface 313 and converges at the focus of the light-emitting surface 321, and then is diffused by the lens 320 and exits from the first light outlet 220, thereby improving the utilization rate of the light entering the second light inlet 311.

[0044] Optionally, the lens 320 is a convex lens. The second reflecting surface 313 converges the light rays entering the second light inlet 311 first, and then diffuses the light through the lens 320. At this time, the sizes of both the second reflector 310 and the lens 320 are small, so that the space occupied by the light distribution component 300 in the accommodation cavity of the first reflector 200 is small. Of course, the lens 320 can also be a concave lens. At this time, the light-emitting surface 321 is an arc-shaped concave surface, and at this time, the volumes of both the second reflector 310 and the lens 320 need to be increased simultaneously.

[0045] Optionally, the focus of the light-emitting surface 321 can be located on the side of the second light outlet 312 close to the light source 100, or on the side close to the first light outlet 220. However, in both of the above cases, it is necessary to ensure that the second light outlet 312 has a relatively large size to facilitate the passage of light rays.

[0046] In some other embodiments, the focus of the light-emitting surface 321 coincides with the center point of the second light outlet 312. At this time, the size of the second light outlet 312 can be set to be small, so as to reduce the volume of the second reflector 310, and further reduce the space occupied by the light distribution component 300 in the accommodation cavity of the first reflector 200.

[0047] Optionally, both the first reflecting surface 230 and the second reflecting surface 313 can be flat surfaces; or, in other embodiments, at least one of the first reflecting surface 230 and the second reflecting surface 313 is an arc-shaped concave surface. Since the arc-shaped concave surface has the effect of converging light rays, it can not only improve the utilization rate of light rays, but also reduce the sizes of the first reflector 200 and the second reflector 310.

[0048] Optionally, the second light inlet 311 of the second reflector 310 is larger than the second light outlet 312, that is, the second reflecting surface 313 has a contracted structure. At this time, the second reflecting surface 313 can converge the light rays entering the second light inlet 311, so as to reduce the size of the second reflector 310. Of course, the second light inlet 311 of the second reflector 310 can also be smaller than the second light outlet 312.

[0049] It should be noted that when the second light inlet 311 is larger than the second light outlet 312, the shape of the second reflector 310 can be the same as or similar to the shape of the first reflector 200, and the embodiments of the present application do not limit this.

[0050] Optionally, the lens 320 can be directly attached to the surface of the second reflector 310 facing the lens 320, for example, connected by bonding or other means.

[0051] In another embodiment, one end of the lens 320 close to the second reflector 310 has a flange portion 322, and the flange portion 322 is in contact with the surface of the second reflector 310 facing the lens 320. At this time, the connection area between the lens 320 and the second reflector 310 can be increased, thereby improving the connection firmness between the two.

[0052] Optionally, one of the flange portion 322 and the second reflector 310 can be provided with a positioning groove, and the other is provided with a positioning protrusion. The positioning protrusion and the positioning groove are in positioning cooperation, which is not only convenient for installation, but also can further increase the connection area between the two and improve their connection stability.

[0053] Further optionally, both the above-mentioned positioning groove and the positioning protrusion can be of an annular structure to further play a role in shading, avoiding a small amount of stray light from being emitted from the assembly gap between the lens 320 and the second reflector 310 and causing light leakage, thereby improving the light utilization rate in the second reflector 310.

[0054] In some embodiments, the light source module further includes: a light shield 400. Optionally, the light shield 400 can be of a cylindrical structure.

[0055] The light shield 400 is disposed at one end of the first reflector 200 away from the light source 100. The accommodation space of the light shield 400 is communicated with the first light outlet 220, so that the parallel light beam described above passes through the light shield 400 and is emitted. A plurality of grooves are provided along the circumferential direction of the inner side wall of the light shield 400. The grooves can further remove the stray light in the light emitted from the first light outlet 220, thereby improving the clarity of the spot boundary and further improving the overall irradiation effect of the light source module.

[0056] Optionally, each groove is a strip-shaped groove, and the extending direction of the strip-shaped groove is the same as the extending direction of the light shield 400, that is, the extending direction of the groove is the same as the propagation direction of the light, so as to avoid blocking part of the edge light and causing light loss.

[0057] Optionally, the cross-sectional area of the groove can be rectangular or semi-circular; or, the groove includes a connected first inclined surface and a second inclined surface, that is, the cross-sectional area of the groove is V-shaped, which can not only absorb stray light, but also ensure the structural strength of the light shield 400.

[0058] Optionally, adjacent grooves can be arranged at intervals along the circumferential direction of the light shield 400; or, the first inclined surface and the second inclined surface of adjacent grooves are connected, that is, a plurality of grooves are connected in sequence along the circumferential direction of the light shield 400, thereby improving the effect of absorbing stray light.

[0059] It should be noted that the shapes of multiple grooves can be the same for ease of manufacturing. Of course, they can also be different (for example, some grooves are V-shaped structures and some are U-shaped structures). The embodiments of the present application do not make specific restrictions on this.

[0060] In addition, when the shapes of multiple grooves are the same, the sizes of each groove (such as groove depth and groove width) can be the same or different. The embodiments of the present application also do not make specific restrictions on this.

[0061] In some embodiments, in the extending direction of the first reflector 200 towards the light shielding cover 400, the cross-sectional areas of both the first reflector 200 and the light shielding cover 400 gradually increase. At this time, the continuity of the outside of the entire light source module is better, which is not only convenient for assembly but also beneficial to improving the aesthetics of the light source module. Of course, in the axial direction of the light shielding cover 400, the cross-sectional areas of each part of the light shielding cover 400 can also be equal.

[0062] Optionally, the maximum cross-sectional area of the first reflector 200 can be equal to the minimum cross-sectional area of the light shielding cover 400. In other words, in the direction of the main optical axis of the light source 100, the projection contour line of the first light outlet 220 coincides with the projection contour line of the light inlet of the light-transmitting cover 400, so as to facilitate all the light emitted from the first reflector 200 to enter the light shielding cover 400, and at the same time improve the continuity and aesthetics of the outside of the light source module.

[0063] Optionally, the end face of the light shielding cover 400 and the end face of the first reflector 200 can be bonded by an adhesive to avoid light leakage. However, since both are hard structures, the requirements for this connection process are relatively high and the assembly difficulty is relatively large.

[0064] Or, in some other embodiments, an annular light-blocking portion 410 is provided on the outer peripheral surface of the light shielding cover 400. The annular light-blocking portion 410 covers the fitting gap between the light shielding cover 400 and the first reflector 200, and the annular light-blocking portion 410 cooperates with the first reflector 200 to prevent some light from emitting from the fitting gap between the light shielding cover 400 and the first reflector 200. The annular light-blocking portion 410 here can achieve a good light-blocking effect. Therefore, there is no need for a high sealing performance between the end face of the light shielding cover 400 and the end face of the first reflector 200. Therefore, the sealing requirements between the two can be reduced in this embodiment.

[0065] Optionally, the inner peripheral surface of the light shielding cover 400 and the outer peripheral surface of the first reflector 200 can be arranged in a fitting manner, so as to further improve the light-blocking effect of the light shielding cover 400. And in this case, the process difficulty of connecting the light shielding cover 400 and the first reflector 200 can be reduced.

[0066] Based on the light source module disclosed in the embodiments of the present application, the embodiments of the present application also disclose a lighting fixture, which includes a lamp body and the light source module described in any of the above embodiments, and the light source module is disposed on the lamp body.

[0067] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope of the present invention as protected by the claims, and all of them fall within the protection scope of the present invention.

Claims

1. A light source module, characterized in that, It includes a light source (100), a first reflector (200) and a light distribution component (300). The first reflector (200) is provided with a first light inlet (210), a first light outlet (220) and a first reflecting surface (230). The first reflecting surface (230) is connected between the first light inlet (210) and the first light outlet (220), and the light source (100) is arranged at the first light inlet (210). The light distribution component (300) is arranged in the accommodation cavity of the first reflector (200), and the light distribution component (300) is located on the main optical axis of the light source (100). Both the first reflecting surface (230) and the light distribution component (300) face the light source (100). The light emitted by the light source (100) forms a parallel light beam after passing through the first reflecting surface (230) and the light distribution component (300), and the parallel light beam is emitted from the first light outlet (220).

2. The light source module according to claim 1, wherein The curved surface formed by the connection line between the center point of the light source (100) and the edge of the first light outlet (220) rotating around the main optical axis of the light source (100) intersects with the second light inlet (311) of the light distribution component (300).

3. The light source module according to claim 2, wherein The light distribution component (300) includes a second reflector (310). The second reflector (310) is provided with the second light inlet (311), a second light outlet (312) and a second reflecting surface (313). The second reflecting surface (313) is connected between the second light inlet (311) and the second light outlet (312). The second light inlet (311) faces the light source (100), and the second light outlet (312) faces the first light outlet (220). Part of the light passes through the second light inlet (311), is reflected by the second reflecting surface (313) and is emitted from the second light outlet (312).

4. The light source module according to claim 3, wherein The light distribution component further includes a lens (320) connected to the second reflector (310). The lens (320) is arranged between the second light outlet (312) and the first light outlet (220). The side of the lens (320) facing away from the second reflector (310) is provided with a light-emitting surface (321). The light emitted from the second light outlet (312) forms part of the parallel light beam after passing through the lens (320).

5. The light source module according to claim 4, wherein The lens (320) is a convex lens.

6. The light source module according to claim 4, wherein, One end of the lens (320) close to the second reflector (310) has a flange portion (322), and the flange portion (322) is attached to the surface of the second reflector (310) facing the lens (320).

7. The light source module according to claim 3, characterized in that At least one of the first reflecting surface (230) and the second reflecting surface (313) is an arc-shaped concave surface.

8. The light source module according to claim 3, characterized in that, The second light inlet (311) is larger than the second light outlet (312).

9. The light source module according to claim 1, wherein The light source module further includes: a light shield (400), the light shield (400) is disposed at one end of the first reflector (200) away from the light source (100), and the accommodation space of the light shield (400) is communicated with the first light outlet (220) so that the parallel light beam passes through the light shield (400) and exits, and a plurality of grooves are provided on the inner side wall of the light shield (400) along its circumference.

10. The light source module according to claim 9, wherein Each of the grooves is a strip-shaped groove, the extending direction of the strip-shaped groove is the same as the extending direction of the light shield (400), and the groove includes a connected first inclined surface and a second inclined surface, and the first inclined surface of the adjacent grooves is connected to the second inclined surface.

11. The light source module according to claim 9, characterized in that, In the extending direction of the first reflector (200) towards the light shield (400), the cross-sectional areas of both the first reflector (200) and the light shield (400) gradually increase; An annular light shielding portion (410) is provided on the outer peripheral surface of the light shield (400), the annular light shielding portion (410) covers the fitting gap between the light shield (400) and the first reflector (200), and the annular light shielding portion (410) cooperates with the first reflector (200).

12. A lighting fixture, characterized in that, The lamp includes a lamp body and the light source module according to any one of claims 1 to 11, and the light source module is disposed on the lamp body.

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