Light scattering element and lighting lamp

Abstract

The light scattering element comprises a light guide device, a plurality of corrugated light scattering stripes are arranged on the light emitting face of the light guide device, any two adjacent light scattering stripes are arranged at intervals, the side faces and / or the bottom faces of the light scattering stripes are corrugated, the diffuse reflection path of emergent light is increased, and the light scattering effect is improved. Therefore, the light scattering effect of the emergent light is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and in particular to a light-scattering element and a lighting lamp. Background Art

[0002] Spotlights, downlights, wall washers and other lighting fixtures are often used in restaurants, bars, teahouses, rest clubs and other places. In these specific places, soft lighting is more suitable, and the requirements for scattered light of lighting fixtures are high, while the requirements for concentrated light are relatively low.

[0003] In the prior art, diffusers are generally used to achieve this function. For example, Chinese utility model patent publication number CN220471443U discloses a direct-down LED lighting fixture that achieves this effect by placing a diffuser within the lamp tube. The diffuser is thick in the middle and thin at the edges.

[0004] However, the light-emitting surface of the existing diffuser is basically a plane, the diffuse reflection path of light is small, the diffuse light effect is average, and its diffuse light performance needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a light-scattering element and a lighting fixture that can improve the light-scattering effect.

[0006] The technical solution of the present utility model provides a light-scattering element for use in a lighting fixture, wherein the light-scattering element includes a light-guiding device, and the light-emitting surface of the light-guiding device is provided with a plurality of corrugated light-scattering stripes, and any two adjacent light-scattering stripes are arranged at intervals from each other, and the side surfaces and / or bottom surfaces of the light-scattering stripes are corrugated.

[0007] In one of the optional technical solutions, the light scattering stripes are integrated with the light guiding device.

[0008] In one of the optional technical solutions, the light scattering stripes protrude from the light emitting surface of the light guide device.

[0009] In one of the optional technical solutions, along a direction perpendicular to the light emitting surface, one side surface of the scattered light stripe is a vertical surface, and the other side surface of the scattered light stripe is a curved surface.

[0010] In one of the optional technical solutions, the light guide device includes a light guide plate or a tapered light guide;

[0011] The top surface of the light guide plate is a light incident surface, and the bottom surface of the light guide plate is a light emitting surface;

[0012] The top surface of the conical light guide is a light incident surface, and the bottom surface of the conical light guide is a light exit surface. In the direction from the top surface to the bottom surface of the conical light guide, the radius of the conical light guide gradually increases.

[0013] In one of the optional technical solutions, a plug-in positioning piece is provided on the light guide plate.

[0014] In one of the optional technical solutions, a light incident groove is provided on the top surface of the tapered light guide, and the groove wall surface of the light incident groove is a curved surface.

[0015] In one of the optional technical solutions, a conical incident groove is provided at the center of the bottom of the light incident groove, and the radius of the conical incident groove gradually decreases in the direction from top to bottom.

[0016] In one of the optional technical solutions, a positioning ring is provided around the conical light guide.

[0017] The technical solution of the present utility model further provides a lighting fixture, comprising a housing, a light source, a bottom ring with a light exit hole, and a light scattering element as described in any of the above technical solutions;

[0018] The light source is arranged in the shell, the bottom ring is detachably arranged in the bottom opening of the shell, the scattering element is arranged in the shell, the light source faces the light incident surface of the light guide device, and the scattering stripes at least partially extend into the light exit hole.

[0019] The above technical solution has the following beneficial effects:

[0020] The light-scattering element and lighting fixture provided by the present invention are provided with a plurality of spaced-apart corrugated light-scattering stripes on the light-emitting surface of the light-guiding device, and the side surfaces and / or bottom surfaces of the light-scattering stripes are corrugated, which increases the path of diffuse reflection of the outgoing light, thereby improving the light-scattering effect of the outgoing light. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0022] Figure 1 A three-dimensional view of the light-scattering element provided in the first embodiment of the present invention at one viewing angle;

[0023] Figure 2 for Figure 1 A perspective view of the light-scattering element shown in another perspective;

[0024] Figure 3 for Figure 1A perspective view of the light-scattering element at another viewing angle;

[0025] Figure 4 for Figure 1 A cross-sectional view of the light-scattering element shown, wherein the cross-sectional view is along the extension direction of the light-scattering stripes;

[0026] Figure 5 for Figure 1 A cross-sectional view of the light-scattering element shown, wherein the cross-sectional plane is perpendicular to the extension direction of the light-scattering stripes;

[0027] Figure 6 A three-dimensional view of a light-scattering element provided in a second embodiment of the present invention at a certain viewing angle;

[0028] Figure 7 for Figure 6 A perspective view of the light-scattering element shown in another perspective;

[0029] Figure 8 for Figure 6 A perspective view of the light-scattering element at another viewing angle;

[0030] Figure 9 for Figure 6 A cross-sectional view of the light-scattering element shown, wherein the cross-sectional view is along the extension direction of the light-scattering stripes;

[0031] Figure 10 for Figure 6 A cross-sectional view of the light-scattering element shown, wherein the cross-sectional plane is perpendicular to the extension direction of the light-scattering stripes;

[0032] Figure 11 A three-dimensional diagram of a lighting fixture provided in one embodiment of the present utility model;

[0033] Figure 12 A cross-sectional view of a lighting fixture provided in one embodiment of the present invention, wherein the light-scattering element described in the first embodiment is installed in the housing;

[0034] Figure 13 This is a cross-sectional view of a lighting fixture provided by one embodiment of the present invention, wherein the light-scattering element described in the second embodiment is installed in the housing. DETAILED DESCRIPTION

[0035] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0036] like Figure 1-10As shown, a light-scattering element provided by one embodiment of the present invention is used in a lighting fixture. The light-scattering element includes a light-guiding device 1. The light-emitting surface 1b of the light-guiding device 1 is provided with a plurality of corrugated light-scattering stripes 2. Any two adjacent light-scattering stripes 2 are arranged at intervals from each other, and the side surfaces and / or bottom surfaces of the light-scattering stripes 2 are corrugated.

[0037] The light-scattering element provided by the utility model can also be called a light-scattering lens, which is used for being installed in the lamp tube of a lamp to play a light-scattering role.

[0038] The light-scattering element includes a light guide 1, which can be a light-transmitting plate or a convex lens. The side of the light guide 1 facing the light source is called the light incident surface 1a, and the side of the light guide 1 through which light emerges is called the light exit surface 1b. The light exit surface 1b is not necessarily an independent surface, but is merely used to clearly illustrate the optical path of the light guide 1.

[0039] A plurality of spaced-apart scattered light stripes 2 are provided on the light-emitting surface 1b. The scattered light stripes 2 are corrugated, that is, the scattered light stripes 2 are curved and extended, and are roughly corrugated. The scattered light stripes 2 are light-transmissive and are made of the same material as the light-guiding device 1. The side surfaces of the scattered light stripes 2 are corrugated or the bottom surface of the scattered light stripes 2 is corrugated. Preferably, both the side surfaces and the bottom surface of the scattered light stripes 2 are corrugated. After light passes through a scattered light stripe 2, some light is emitted directly from the bottom surface of the scattered light stripe 2, and some light is emitted from the side surfaces of the scattered light stripe 2. Since the scattered light stripe 2 is corrugated, the light emitted from the side surfaces will enter the adjacent scattered light stripes 2 and be diffusely reflected again. Moreover, since the side surfaces and / or bottom surfaces of the scattered light stripe 2 are corrugated, the light emitted from the side surfaces and / or bottom surfaces will be emitted in different directions, which increases the path of diffuse reflection of the emitted light, thereby improving the scattered light effect of the emitted light.

[0040] When the light-scattering element is applied to a lighting fixture, the light-scattering stripes 2 are preferably provided at the light-emitting end of the lighting fixture.

[0041] In one embodiment, Figure 4-5 and Figure 9-10 As shown, the scattered light stripes 2 and the light guide device 1 are integrated, with high structural strength and seamless connection between the two, which is conducive to the transmission of light from the light guide device 1 to the scattered light stripes 2.

[0042] In one embodiment, Figure 2-3 and Figure 7-8 As shown, the scattered light stripes 2 protrude from the light emitting surface 1b of the light guide device 1 so that the scattered light stripes 2 can be extended into the light emitting hole of the light emitting lamp. The light is directly emitted after being diffusely reflected by the scattered light stripes 2, avoiding the lighting fixture itself blocking the light irradiation.

[0043] In one embodiment, Figure 5 and Figure 10As shown, along the direction perpendicular to the light emitting surface 1b, one side surface of the scattered light stripe 2 is a vertical surface 21, and the other side surface of the scattered light stripe 2 is a curved surface 22. After the light propagates through the vertical surface 21 and the curved surface 22, it will be guided to undergo diffuse reflection.

[0044] In one embodiment, Figure 1-10 As shown, the light guide device 1 includes a light guide plate 11 or a tapered light guide 12 .

[0045] The top surface of the light guide plate 11 is a light incident surface 1 a , and the bottom surface of the light guide plate 11 is a light emitting surface 1 b .

[0046] The top surface of the conical light guide 12 is the light incident surface 1a, and the bottom surface of the conical light guide 12 is the light exit surface 1b. In the direction from the top surface to the bottom surface of the conical light guide 12, the radius of the conical light guide 12 gradually increases.

[0047] In this embodiment, the light guide device 1 may adopt a flat light guide plate 11 or a tapered light guide 12 to meet different installation requirements.

[0048] If the light guide device 1 adopts a flat light guide plate 11, the installation is as follows: Figure 12 As shown, the light scattering element is directly mounted on the light emitting end of the housing 3 , the light source 4 is close to the light emitting end of the housing 3 , and the light scattering stripes 2 extend into the light emitting hole of the bottom ring 5 .

[0049] If the light guide device 1 adopts a tapered light guide 12, the installation should be as follows: Figure 13 As shown, the light scattering element is installed in the housing 3, the light source 4 is close to the top plate of the housing 3, the tapered light guide 12 extends toward the light emitting end of the housing 3, and the light scattering stripes 2 extend into the light emitting hole of the bottom ring 5.

[0050] In one embodiment, Figure 1 As shown, the light guide plate 11 is provided with a plug-in positioning member 111 to position the light guide plate 11 in the housing of the lighting fixture. The plug-in positioning member 111 can be made of plastic or the same material as the light guide plate 11.

[0051] In one embodiment, Figure 9-10 As shown, a light incident groove 121 is provided on the top surface of the tapered light guide 12 , and the groove wall surface of the light incident groove 121 is a curved surface.

[0052] Combine Figure 13 As shown, after installation, the light source 4 is aligned with the light entrance groove 121, and the light is emitted toward the light entrance groove 121. Part of the light is emitted toward the bottom surface of the light entrance groove 121, and part of the light is emitted toward the groove wall surface of the light entrance groove 121. The groove wall surface is a curved surface, which will guide this part of the light to produce diffuse reflection, which is beneficial to improving the astigmatism effect.

[0053] In one embodiment, Figure 9-10 As shown, a tapered incident groove 122 is provided at the center of the bottom of the light incident groove 121 , and the radius of the tapered incident groove 122 gradually decreases in a direction from top to bottom.

[0054] Part of the light incident on the bottom surface of the light incident groove 121 will be incident on the conical incident groove 122 . Under the action of the conical surface of the conical incident groove 122 , this part of the light will be diffusely reflected, which is beneficial to improving the astigmatism effect.

[0055] In one embodiment, Figure 6-10 As shown, a positioning ring 123 is provided around the tapered light guide 12 to position the tapered light guide 12 in the housing of the lighting fixture. The positioning ring 123 can be made of plastic or the same material as the tapered light guide 12.

[0056] like Figure 11-13 As shown, an embodiment of the present invention provides a lighting fixture, comprising a housing 3, a light source 4, a bottom ring 5 having a light exit hole 51, and a light scattering element as described in any of the above embodiments.

[0057] The light source 4 is arranged in the shell 3, the bottom ring 5 is detachably arranged in the bottom opening of the shell 3, the scattering element is arranged in the shell 3, the light source 4 faces the light incident surface 1a of the light guide device 1, and the scattering stripes 2 at least partially extend into the light outlet hole 51.

[0058] The lighting fixture provided by the present invention comprises a housing 3, a light source 4, a bottom ring 5 and a light-scattering element. For the structure, construction and working principle of the light-scattering element, please refer to the above description of the light-scattering element, which will not be repeated here.

[0059] The housing 3 can be square or circular. The light source 4 can be an LED lamp bead. The bottom ring 5 is a surface ring that is mounted on the light-emitting end of the housing 3 by snap-fitting. The center hole of the bottom ring 5 is the light-emitting hole 51.

[0060] If the light guide device 1 adopts a flat light guide plate 11, the installation is as follows: Figure 12 As shown, the light scattering element is directly installed on the light emitting end of the shell 3, the light source 4 is close to the light emitting end of the shell 3, and the light scattering stripes 2 extend into the light emitting hole 51 of the bottom ring 5. The light is directly emitted after being diffusely reflected by the light scattering stripes 2, avoiding the lighting fixture itself from blocking the light.

[0061] If the light guide device 1 adopts a tapered light guide 12, the installation should be as follows: Figure 13 As shown, the light scattering element is installed in the shell 3, the light source 4 is close to the top plate of the shell 3, the conical light guide 12 extends toward the light output end of the shell 3, and the light scattering stripes 2 extend into the light output hole 51 of the bottom ring 5. The light is diffusely reflected by the light scattering stripes 2 and then directly emitted, avoiding the lighting fixture itself blocking the light.

[0062] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0063] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the scope of protection of the present invention.

Claims

1. A light-scattering element, used in a lighting fixture, characterized in that: The light scattering element includes a light guide device, the light emitting surface of the light guide device is provided with a plurality of corrugated light scattering stripes, any two adjacent light scattering stripes are arranged at intervals, and the side surfaces and / or bottom surfaces of the light scattering stripes are corrugated.

2. The light-scattering element according to claim 1, wherein The light scattering stripes are integrally arranged with the light guide component.

3. The light-scattering element according to claim 1, wherein The light scattering stripes protrude from the light emitting surface of the light guide component.

4. The light-scattering element according to claim 1, wherein In a direction perpendicular to the light emitting surface, one side surface of the scattered light stripe is a vertical surface, and the other side surface of the scattered light stripe is a curved surface.

5. The light-scattering element according to claim 1, characterized in that The light guide device includes a light guide plate or a tapered light guide; The top surface of the light guide plate is a light incident surface, and the bottom surface of the light guide plate is a light emitting surface; The top surface of the conical light guide is a light incident surface, and the bottom surface of the conical light guide is a light exit surface. In the direction from the top surface to the bottom surface of the conical light guide, the radius of the conical light guide gradually increases.

6. The light-scattering element according to claim 5, characterized in that The light guide plate is provided with a plug-in positioning piece.

7. The light-scattering element according to claim 5, characterized in that A light entrance groove is provided on the top surface of the tapered light guide, and a groove wall surface of the light entrance groove is a curved surface.

8. The light-scattering element according to claim 7, characterized in that A conical incident groove is provided at the center of the bottom of the light incident groove, and the radius of the conical incident groove gradually decreases in a direction from top to bottom.

9. The light-scattering element according to claim 5, characterized in that A positioning ring is provided around the tapered light guide.

10. A lighting fixture, characterized in that: The light scattering device comprises a housing, a light source, a bottom ring having a light exit hole, and a light scattering element according to any one of claims 1 to 9; The light source is arranged in the shell, the bottom ring is detachably arranged in the bottom opening of the shell, the scattering element is arranged in the shell, the light source faces the light incident surface of the light guide device, and the scattering stripes at least partially extend into the light exit hole.

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