A small-angle lens and a lamp

Abstract

The utility model belongs to the technical field of optical lens, provide a kind of small angle lens and lamp. The small angle lens includes lens body, and the one end of lens body is provided with light outlet end, and light outlet end is provided with first recess, and the bottom of first recess forms first light outlet face, and the lateral wall of first recess forms second light outlet face, and first light outlet face is the curved surface that outward bulges. The utility model can increase the effective light collection utilization of optics, reduce the generation of excessive light by forming first light outlet face in the bottom of first recess and opening first recess. By forming second light outlet face on the lateral wall of first recess, and cooperating with first light outlet face to form secondary light collection effect, first light outlet face is the curved surface that outward bulges, can make emergent light evenly distribute, and reduce light spot.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, specifically to a small-angle lens and a lamp. Background Technology

[0002] Small-angle lenses, also known as extremely narrow-angle lenses, are characterized by high directionality and energy concentration, and are typically used in applications requiring high precision and high energy density.

[0003] Although small-angle lenses are widely used in various highly directional scenarios, due to their own emission angle, in addition to the main light spot, they will also form other extra light spots, affecting precise lighting. At the same time, when multiple LEDs are connected in a single panel, each LED requires its own clear space, and the lighting effects of multiple LEDs can interfere with each other. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a small-angle lens and lamp to solve the problem that the excess light spot of the current small-angle lens affects the accuracy of lighting.

[0005] In a first aspect, the present invention provides a small-angle lens, including a lens body, one end of which is provided with a light-emitting end, the light-emitting end having a first groove, the bottom of the first groove forming a first light-emitting surface, the sidewall of the first groove forming a second light-emitting surface, and the first light-emitting surface being an outwardly convex curved surface.

[0006] As can be seen from the above technical solution, the small-angle lens provided by this utility model can increase the effective light collection and utilization of optics and reduce the generation of excessive light by opening a first groove and forming a first light-emitting surface at the bottom of the first groove; by forming a second light-emitting surface on the side wall of the first groove, it can form a secondary light collection effect in combination with the first light-emitting surface. The first light-emitting surface is an outwardly convex curved surface, which can make the emitted light evenly distributed and reduce the light spot.

[0007] Optionally, the other end of the lens body is provided with a light-incident end, the light-incident end having a second groove, the bottom surface of the second groove forming a first light-incident surface, and the sidewall of the second groove forming a second light-incident surface. The first light-incident surface passes through the concave arc surface of the central region, causing the light incident on the concave arc surface of the central region to be evenly distributed towards the first light-out surface; passing through the outer ring region of the first light-incident surface, the light incident on the outer ring region can be concentrated towards the light-out surface, reducing excess light spots.

[0008] Optionally, the lens body further has a reflective surface, which is located on the outer side wall of the lens body and is an arc surface.

[0009] Optionally, the lens body is further connected to a support portion, which extends from the outer sidewall of the lens body toward the light-incident end.

[0010] Optionally, the support portion and the lens body are integrally formed.

[0011] Optionally, the sidewall of the first groove further includes a transition section, which connects the first light-emitting surface and the second light-emitting surface.

[0012] Optionally, the outer ring of the first light-incident surface is a convex annular surface, and the center of the first light-incident surface is a concave arc surface. The first light-incident surface passes through the concave arc surface of the central region, causing the light incident on the concave arc surface of the central region to be evenly distributed toward the first light-exiting surface; passing through the outer ring region of the first light-incident surface, the light incident on the outer ring region can be concentrated toward the light-exiting surface, reducing excess light spots.

[0013] Secondly, the present invention provides a lamp that includes a small-angle lens in any possible implementation of the first aspect.

[0014] By adopting the above technical solution, this application has the following technical effects:

[0015] This invention increases the effective light collection and reduces the generation of excessive light by opening a first groove and forming a first light-emitting surface at the bottom of the first groove. By forming a second light-emitting surface on the side wall of the first groove, a secondary light collection effect is formed in conjunction with the first light-emitting surface. The first light-emitting surface is an outwardly convex curved surface, which can make the emitted light evenly distributed and reduce the light spot. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A cross-sectional view of a small-angle lens provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of a small-angle lens provided for an embodiment of this utility model;

[0019] Figure 3 Another schematic diagram of a small-angle lens provided for an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the optical path of a small-angle lens provided for an embodiment of the present invention.

[0021] Figure label:

[0022] 1-Emitting light end; 11-First light-emitting surface; 12-Second light-emitting surface; 13-Transition section; 2-Incident light end; 21-First light-incident surface; 22-Second light-incident surface; 3-Reflecting surface; 4-Supporting part. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0025] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1

[0029] like Figure 1-4 As shown, the present invention provides a small-angle lens, including a lens body, one end of which is provided with a light-emitting end 1, the light-emitting end 1 having a first groove, the bottom of the first groove forming a first light-emitting surface 11, the sidewall of the first groove forming a second light-emitting surface 12, and the first light-emitting surface 11 being an outwardly convex curved surface.

[0030] Based on the above structure, by opening the first groove and forming the first light-emitting surface 11 at the bottom of the first groove, the effective light-gathering utilization of optics can be increased and the generation of excessive light can be reduced; by forming the second light-emitting surface 12 on the side wall of the first groove, the light-emitting surface performs two light-gathering operations when it cooperates with the first light-emitting surface 11. The first light-emitting surface 11 is an outwardly convex curved surface, which can make the emitted light evenly distributed and reduce the light spot.

[0031] Specifically, the radius of curvature of the first light-emitting surface 11 is 3-10 mm, and the radius of curvature of the second light-emitting surface 12 is 10-50 mm, which can be designed according to actual needs. The sidewall of the first groove also includes a transition section 13, which connects the first light-emitting surface 11 and the second light-emitting surface 12.

[0032] Optionally, the other end of the lens body is provided with a light-incident end 2, which has a second groove. The bottom surface of the second groove forms a first light-incident surface 21, and the sidewall of the second groove forms a second light-incident surface 22. The outer ring of the first light-incident surface 21 is a convex annular surface, and the center of the first light-incident surface 21 is a concave arc surface. The first light-incident surface 21 passes through the concave arc surface in the central region, so that the light rays incident on the concave arc surface in the central region are evenly distributed toward the first light-exiting surface 11; passing through the outer ring region of the first light-incident surface 21, the light rays incident on the outer ring region can be concentrated toward the light-exiting surface, reducing excess light spots.

[0033] Optionally, the lens body also has a reflecting surface 3, which is located on the outer wall of the lens body and is curved. For example... Figure 4 As shown, the reflective surface 3 is used to reflect the light incident on it to the second light-emitting surface 12, achieving a small-angle light spot effect and improving the light collection effect, thereby avoiding mutual interference when multiple LEDs are arranged in a connected array.

[0034] like Figure 1-3 As shown, the lens body is also connected to a support portion 4, which extends from the outer wall of the lens body toward the light-incident end 2. The support portion 4 and the lens body are integrally formed. A height difference is formed between the bottom of the support portion 4 and the bottom of the light-incident end 2, which can be used to place an LED light source. The outer surface of the support portion 4 is textured.

[0035] Example 2

[0036] This utility model provides a lighting fixture, including the small-angle lens provided in Embodiment 1. The lighting fixture provided in this application adopts the same inventive concept as the aforementioned small-angle lens and can achieve the same beneficial effects, which will not be described again here.

[0037] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A small-angle lens, characterized in that, The lens includes a lens body, one end of which is provided with a light-emitting end. The light-emitting end has a first groove, the bottom of which forms a first light-emitting surface, and the sidewall of which forms a second light-emitting surface. The first light-emitting surface is an outwardly convex curved surface.

2. The small-angle lens according to claim 1, characterized in that, The other end of the lens body is provided with a light-incident end, and the light-incident end is provided with a second groove. The bottom surface of the second groove forms a first light-incident surface, and the sidewall of the second groove forms a second light-incident surface.

3. The small-angle lens according to claim 2, characterized in that, The lens body also has a reflective surface, which is located on the outer side wall of the lens body and is an arc surface.

4. The small-angle lens according to claim 3, characterized in that, The lens body is also connected to a support portion, which extends from the outer side wall of the lens body toward the light-incident end.

5. The small-angle lens according to claim 4, characterized in that, The support portion and the lens body are integrally formed.

6. The small-angle lens according to claim 1, characterized in that, The sidewall of the first groove also includes a transition section, which connects the first light-emitting surface and the second light-emitting surface.

7. The small-angle lens according to claim 2, characterized in that, The outer ring of the first light-incident surface is a convex annular surface, and the center of the first light-incident surface is a concave arc surface.

8. A lamp, characterized in that, Includes the small-angle lens as described in any one of claims 1-7.

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