A new small-angle lens structure

Abstract

The present application belongs to the field of lenses, and provides a novel small-angle lens structure, including a main body, a light entry groove is provided at the bottom center of the main body, a lateral light entry surface is provided on the side wall of the light entry groove, and a central light entry surface is provided on the bottom wall of the light entry groove; a first light reflecting surface and a second light reflecting surface are provided on the side wall of the main body in sequence, the first light reflecting surface and the second light reflecting surface are inclined outward, and the angle between the first light reflecting surface and the horizontal plane is greater than the angle between the second light reflecting surface and the horizontal plane; a light exit groove is provided on the top of the main body, the light exit groove is a trumpet-shaped structure, and the light exit groove is provided with a light exit surface. The present application has a simple structure, and in addition to improving the uniformity of the light spot, it can also well control the light at the edge of the LED to maintain a light exit mode with a smaller exit angle after passing through the lens, thereby reducing the redundant light spots outside the small light spot, playing a good focusing role, and thus achieving high center light intensity.

Description

Technical Field

[0001] The present application belongs to the field of lenses, and in particular, relates to a novel small-angle lens structure. Background Art

[0002] The actual function of the lens is to focus light. The technology of controlling the light through the lens can gather the light emitted by the LED to obtain high central light intensity. In the prior art, in order to achieve power performance, the light emitting surface of the LED light source is relatively large. Therefore, the light emitted from the edge of the LED will be emitted at a large angle after passing through the lens, causing secondary light spots and forming stray light, thus failing to meet the requirements of high central light intensity at a small angle. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of the present application is to provide a new type of small-angle lens structure with a simple structure. In addition to improving the uniformity of the light spot, it can also well control the light at the edge of the LED to maintain a smaller output angle after passing through the lens, thereby reducing the excess light spot outside the small light spot, playing a good focusing effect, and thus achieving high central light intensity.

[0004] The technical means adopted by this application to solve the above technical problems are:

[0005] The present application provides a novel small-angle lens structure, including a main body, wherein a light entrance groove is arranged at the bottom center position of the main body, the side walls of the light entrance groove are arranged with lateral light entrance surfaces, and the bottom wall of the light entrance groove is arranged with a central light entrance surface; the side walls of the main body are arranged with a first reflecting surface and a second reflecting surface in sequence, the first reflecting surface and the second reflecting surface are inclined outward, and the angle between the first reflecting surface and the horizontal plane is greater than the angle between the second reflecting surface and the horizontal plane; the top of the main body is arranged with a light exit groove, the light exit groove is a trumpet-shaped structure, and the light exit groove is provided with a light exit surface.

[0006] Preferably, the central light incident surface is convex toward the middle position.

[0007] Compared with the prior art, the new small-angle lens structure of the present application and the small-angle lens of the same size and height, the light is reflected and refracted by multiple lens medium surfaces, and the path taken by the lens is longer than the conventional lens distance. In addition to improving the uniformity of the light spot, it can also well control the light at the edge of the LED to maintain a smaller output angle after passing through the lens, thereby reducing the excess light spots outside the small light spot, playing a good focusing effect, and thus achieving high central light intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 This is a schematic structural diagram of the novel small-angle lens structure of the present application.

[0010] Figure 2 This is a cross-sectional view of the novel small-angle lens structure of the present application.

[0011] Figure 3 This is a diagram of the light direction of the new small-angle lens structure of this application.

[0012] Marking Description:

[0013] 100. Main body; 1. Light entrance groove; 2. Central light entrance surface; 3. Side light entrance surface; 4. First light reflection surface; 5. Second light reflection surface; 6. Light exit groove; 7. Light exit surface. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] It should be noted that: unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0016] like Figure 1-2As shown, a new type of small-angle lens structure is provided in the present embodiment, including a main body 100, wherein a light entrance groove 1 is arranged at the bottom center position of the main body 100, a side wall of the light entrance groove 1 is arranged with a lateral light entrance surface 3, and a bottom wall of the light entrance groove 1 is arranged with a central light entrance surface 2; a first light reflecting surface 4 and a second light reflecting surface 5 are arranged on the side wall of the main body 100 in sequence, the first light reflecting surface 4 and the second light reflecting surface 5 are inclined outward, and an angle between the first light reflecting surface 4 and the horizontal plane is greater than an angle between the second light reflecting surface 5 and the horizontal plane; a light exit groove 6 is arranged on the top of the main body 100, the light exit groove 6 is a trumpet-shaped structure, and the light exit groove 6 is provided with a light exit surface 7.

[0017] like Figure 3 As shown, the central part of the light will be refracted after passing through the central light incident surface 2, and the transmission refraction will hit this part of the light to the light exiting surface 7 of the lens surface. Since the condition of total reflection is met, this part of the light will be deflected from the light exiting surface 7 to the second light reflecting surface 5 at a certain angle. The light passing through the second light reflecting surface 5 also meets the condition of total reflection. This part of the light will hit the light exiting surface 7 after being reflected by the second light reflecting surface 5. Finally, the light is refracted and collimated after passing through the light exiting surface 7. The light path is roughly the central light incident surface 2-light exiting surface 7-second reflective surface 5-light exiting surface 7.

[0018] The side light will be refracted after passing through the side light incident surface 3 of the lens, and the light will be deflected and hit the first reflection surface of the side wall total reflection surface. Since the conditions for total reflection are met, this part of the light will be reflected by the first reflection surface and hit the surface light emitting surface 7. Finally, the light will be refracted and collimated after passing through the light emitting surface 7. The light path is roughly the side light incident surface 3-first reflection surface-light emitting surface 7.

[0019] In some preferred embodiments of the present invention, the central light incident surface 2 is convex toward the middle position.

[0020] Compared with the prior art, the new small-angle lens structure of the present application and the small-angle lens of the same size and height, the light is reflected and refracted by multiple lens medium surfaces, and the path taken by the lens is longer than the conventional lens distance. In addition to improving the uniformity of the light spot, it can also well control the light at the edge of the LED to maintain a smaller output angle after passing through the lens, thereby reducing the excess light spots outside the small light spot, playing a good focusing effect, and thus achieving high central light intensity.

[0021] The above description is only a specific implementation mode of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should also be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A novel small-angle lens structure, characterized in that: It includes a main body, a light entrance groove is arranged at the bottom center position of the main body, a lateral light entrance surface is arranged on the side wall of the light entrance groove, and a central light entrance surface is arranged on the bottom wall of the light entrance groove; a first light reflecting surface and a second light reflecting surface are arranged on the side wall of the main body in sequence, the first light reflecting surface and the second light reflecting surface are inclined outward, and an angle between the first light reflecting surface and the horizontal plane is greater than an angle between the second light reflecting surface and the horizontal plane; a light exit groove is arranged on the top of the main body, the light exit groove is a trumpet-shaped structure, and the light exit groove is provided with a light exit surface.

2. The novel small-angle lens structure according to claim 1, characterized in that: The central light incident surface is convex toward the middle position.

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