Illuminating equipment capable of uniformly emitting light

Abstract

The utility model belongs to the field of lighting equipment, and provides lighting equipment capable of emitting light uniformly, the lighting equipment comprises a lens, a light incident groove is formed in the bottom of the lens, the light incident groove is provided with a first light incident surface and a second light incident surface, the first light incident surface is arranged on the bottom wall of the light incident groove, the first light incident surface is of a curved surface structure protruding outwards, and the second light incident surface is of a curved surface structure protruding outwards. The second light incident surface is of an inward concave curved surface structure; a reflecting groove is formed in the top of the lens, the reflecting groove is provided with a reflecting surface corresponding to the first light incident surface, and prisms protruding outwards are sequentially arranged around the center of the reflecting surface; the side wall of the lens is provided with a light-emitting face corresponding to the second light-in face, and the light-emitting face is of an inwards-sunken curved face structure. The LED light source is high in light transmittance and uniform in light emitting, and a larger light irradiation range can be achieved.

Description

Technical Field

[0001] The present application relates to the field of lighting equipment, and more specifically, to a lighting equipment with uniform light output. Background Art

[0002] At present, the illumination range of candle lamp lenses is relatively limited, and the proportion of luminous flux in the light distribution and the corresponding light intensity angle of the light distribution are small, which cannot meet the optical requirements of optimizing the surface uniformity of the lamp when the lamp is lit, and thus cannot meet the optical requirements of crystal chandeliers and lamps such as spherical lampshades and straight tube lampshades for lenses. 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 lighting device with uniform light output, high light transmittance, uniform light output, and the ability to achieve a wider range of light irradiation.

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

[0005] The present application provides a lighting device with uniform light output, including a lens, a light entrance groove is provided at the bottom of the lens, the light entrance groove has a first light entrance surface and a second light entrance surface, the first light entrance surface is provided on the bottom wall of the light entrance groove, the first light entrance surface has an outwardly convex curved surface structure, and the second light entrance surface has an inwardly concave curved surface structure; a reflection groove is provided at the top of the lens, the reflection groove has a reflection surface corresponding to the first light entrance surface, and the reflection surface has outwardly convex prisms arranged in sequence around its center; the side wall of the lens is provided with a light exit surface corresponding to the second light entrance surface, and the light exit surface has an inwardly concave curved surface structure.

[0006] Preferably, the reflecting groove has a conical structure.

[0007] Preferably, the prism is a triangular prism, and the angle between the two side surfaces of the prism is 90°.

[0008] Preferably, the middle of the lens is an inwardly concave curved structure.

[0009] Compared with the prior art, the light of the lighting device with uniform light output of the present application is mainly divided into two parts, the central part and the side light, both of which aim to expand the angle of light diffusion. The central part of the light passes through the first light incident surface. Since the first light incident surface is a curved surface structure convex outward, the light passing through the first light incident surface will be refracted and collected. This part of the light hits the reflective surface. Since the conditions for total reflection are met, this part of the light is reflected by the reflective surface and hits the light emitting surface. The light finally passes through the light emitting surface of the side wall of the lens and is transmitted out. The side part of the light will diffuse after passing through the second light incident surface and the light emitting surface. Since the second light incident surface and the light emitting surface are curved surfaces concave inward, the light diffuses in the form of a large light intensity angle after passing through these two surfaces; thereby achieving uniform light emission and a wider range of light irradiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. 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 relevant drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 This is a schematic diagram of the structure of the lighting device with uniform light output of this application.

[0012] Figure 2 This is a cross-sectional view of the lighting device with uniform light output according to the present application.

[0013] Figure 3 This is a light trend diagram of the lighting device with uniform light output of this application.

[0014] Marking Description:

[0015] 100, lens;

[0016] 1. Light entrance groove; 1a. First light entrance surface; 1b. Second light entrance surface; 2. Reflection groove; 2a. Reflection surface; 3. Light exit surface. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention 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 this 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 present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] It should be noted that unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. Similar reference numerals and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. At the same time, in the description of the present application, the terms "first", "second", etc. are used only to distinguish descriptions and are not to be understood as indicating or implying relative importance.

[0019] like Figure 1-Figure 3 As shown, in this embodiment, a lighting device with uniform light output is provided, including a lens 100, wherein a light entrance groove 1 is provided at the bottom of the lens 100, and the light entrance groove 1 has a first light entrance surface 1a and a second light entrance surface 1b, and the first light entrance surface 1a is provided on the bottom wall of the light entrance groove 1, and the first light entrance surface 1a is a curved surface structure convex outward, and the second light entrance surface 1b is a curved surface structure concave inward; a reflection groove 2 is provided at the top of the lens 100, and the reflection groove 2 has a reflection surface 2a corresponding to the first light entrance surface 1a, and the reflection surface 2a is sequentially provided with outwardly protruding prisms around its center; a light output surface 3 corresponding to the second light entrance surface 1b is provided on the side wall of the lens 100, and the light output surface 3 is a curved surface structure concave inward.

[0020] In some preferred embodiments of the present invention, the reflective groove 2 is a conical structure.

[0021] In some preferred embodiments of the present invention, the prism is a triangular prism, and the angle between the two side surfaces of the prism is 90°. In this way, the reflection angle can be increased, and the uniformity of light output can be further ensured.

[0022] In some preferred embodiments of the present invention, the center of the lens 100 is an inwardly concave curved structure, which can ensure a larger light output angle and further increase the light output range.

[0023] Compared with the prior art, the light of the lighting device with uniform light output of the present application is mainly divided into two parts, the central part and the side light, both of which aim to expand the angle of light diffusion. The central part of the light passes through the first light incident surface 1a. Since the first light incident surface 1a is a curved surface structure convex outward, the light passing through the first light incident surface 1a will be refracted and collected. This part of the light hits the reflective surface 2a. Since the conditions for total reflection are met, this part of the light is reflected by the reflective surface 2a and hits the light emitting surface 3. The light finally passes through the light emitting surface 3 on the side wall of the lens 100 and is transmitted out. The side part of the light will diffuse after passing through the second light incident surface 1b and the light emitting surface 3. Since the second light incident surface 1b and the light emitting surface 3 are curved surfaces concave inward, the light diffuses in the form of a large light intensity angle after passing through these two surfaces; thereby achieving uniform light emission and a wider range of light irradiation.

[0024] The above description is only a specific embodiment 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 changes and variations. Any modifications, equivalent replacements, 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 replacements 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.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A lighting device with uniform light output, characterized in that: The lens comprises a light entrance groove provided at the bottom thereof, the light entrance groove having a first light entrance surface and a second light entrance surface, the first light entrance surface being provided on the bottom wall of the light entrance groove, the first light entrance surface being an outwardly convex curved surface structure, and the second light entrance surface being an inwardly concave curved surface structure; a reflection groove being provided at the top thereof, the reflection groove having a reflection surface corresponding to the first light entrance surface, the reflection surface being provided with outwardly convex prisms in sequence around the center thereof; a light exit surface being provided on the side wall of the lens corresponding to the second light entrance surface, the light exit surface being an inwardly concave curved surface structure.

2. The lighting device with uniform light output according to claim 1, characterized in that: The reflecting groove has a conical structure.

3. The lighting device with uniform light output according to claim 1, characterized in that: The prism is a triangular prism, and the angle between the two side surfaces of the prism is 90°.

4. The lighting device with uniform light output according to claim 1, characterized in that: The middle of the lens is an inwardly concave curved surface structure.

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