Waterproof lens capable of comprehensively refracting light

Abstract

A waterproof lens capable of comprehensively refracting light rays comprises a lens body, an emergent surface is formed on one end face of the lens body, a protruding part extending in the direction away from the emergent surface is formed at the end, opposite to the emergent surface, of the lens body, and an incident part opposite to the emergent surface is arranged at the end of the protruding part; the base body is installed on the end face, provided with the protruding part, of the lens body in a sealed mode, and a light reflecting bin is formed on the base body, wherein the protruding part is arranged in the light reflecting bin. According to the waterproof lens capable of comprehensively refracting the light, the lens body is arranged on the base body in the sealed mode, so that the light which is emitted by the lamp bead and refracted towards the periphery of the protruding part is refracted by the inner surface of the light reflecting bin, then enters the protruding part again and is emitted out along the emergent surface, and the waterproof effect is achieved. Therefore, it can be guaranteed that all light rays emitted by the lamp beads are refracted out, and the lighting efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a waterproof lens that comprehensively refracts light rays. Background Art

[0002] LED lamps are the mainstream lighting appliances in current life and are widely used indoors and outdoors. When using an LED lamp for lighting, a lens is usually installed on a circuit board to adjust the light pattern and light beam of the light source.

[0003] At present, in order to have a certain waterproof performance, the lens usually has an integral structure and is fixedly installed on the circuit board by bonding or potting. However, since the lens barrel is made of a transparent material, after the light of the LED lamp passes through the lens for lighting, light leakage is likely to occur at the side wall position of the lens. For example, the utility model patent with the publication number CN209842110U provides a waterproof lens that realizes the positioning structure of an automated production line, which is an integral structure. During use, the LED lamp beads are arranged at the opening position of the lens body. When the LED lamp beads emit light, the light irradiates along the compound eye surface. At this time, the light generated by the LED lamp beads can also pass through the circumferential surface of the lens body after refraction, so that the light generated by the LED lamp beads cannot be fully mixed and irradiated along the compound eye surface, and the lighting efficiency is low.

[0004] Therefore, there is an urgent need for a waterproof lens that can comprehensively reflect light rays at present. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof lens that comprehensively refracts light rays. To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A waterproof lens that comprehensively refracts light rays, comprising:

[0007] A lens body, an exit surface is formed on one end surface of the lens body, a convex portion extending in a direction away from the exit surface is formed on the lens body at one end opposite to the exit surface, a first reflection surface is defined on the outer surface of the convex portion, and an incident portion opposite to the exit surface is provided at the end of the convex portion;

[0008] A seat body, which is hermetically installed on the end surface of the lens body provided with the convex portion. A reflective chamber for placing the convex portion is formed on the seat body. A second reflection surface for reflecting the light leakage of the convex portion is defined on the inner surface of the reflective chamber. The second reflection surface and the first reflection surface are spaced apart from each other, and a window corresponding to the incident portion is opened at the bottom of the reflective chamber.

[0009] Further, the vertical cross-section of the convex portion is trapezoidal, such that the first reflecting surface is inclined, and the second reflecting surface has the same inclination angle as the first reflecting surface.

[0010] Further, the first reflecting surface is provided as a curved surface convex toward the outside, the second reflecting surface is provided with a curved surface concave toward the inside, and the second reflecting surface has the same curvature as the first reflecting surface.

[0011] Further, the incident portion is recessed above the end face of the convex portion and defines a third reflecting surface inside the convex portion, and the third reflecting surface is an inclined surface.

[0012] Further, the incident portion is provided with a convex arc surface convex toward the outside.

[0013] Further, a docking portion is formed on the lens body, the docking portion surrounds the convex portion, and a docking platform is formed on the seat body to be docked with the docking portion.

[0014] Further, the outer surface of the docking portion is provided with a gradually converging inclined surface, and the inner surface of the docking platform is provided with a gradually opening inclined surface. After the docking portion is snapped into the docking platform, the docking portion and the docking platform press against each other.

[0015] Further, at least two positioning posts are formed on the bottom of the seat body and extend away from the seat body.

[0016] Further, a compound eye array with a curved surface is provided on the exit surface.

[0017] Further, the seat body has a light-shielding setting, and the inner surface of the light-reflecting chamber is provided as a smooth total reflection surface.

[0018] The beneficial effects produced by the present utility model are as follows:

[0019] Through a waterproof lens for comprehensively refracting light rays provided by an embodiment of the present utility model, by hermetically installing the lens body on the seat body, the light rays emitted by the lamp bead and refracted around the convex portion are refracted by the second reflecting surface and then re-enter the convex portion and are emitted along the exit surface, so as to ensure that all the light rays emitted by the lamp bead are refracted out, improve the lighting efficiency, and by providing a compound eye array on the exit surface, the light rays of the lamp bead can be mixed, the softness of the light rays can be improved, and the color uniformity of the light rays can be ensured. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0021] Figure 2 This is a schematic diagram of the explosion structure of the present utility model.

[0022] Figure 3 This is a cross-sectional view of the present utility model.

[0023] In the figure: 100 - lens body; 110 - exit surface; 120 - convex part; 130 - incident part; 200 - base body; 210 - reflective chamber; 220 - window; 121 - first reflection surface; 122 - second reflection surface; 211 - third reflection surface; 140 - docking part; 230 - docking platform; 201 - positioning post; 111 - compound eye array. Detailed implementation manners

[0024] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

[0025] As Figures 1-3 shown, the embodiment of the present utility model provides a waterproof lens that comprehensively refracts light, which is used to be installed on a circuit board and cover an LED lamp bead, and is used to reflect all the light emitted by the LED lamp bead so as to adjust the light beam.

[0026] Please refer to Figures 1-3 , the waterproof lens that comprehensively refracts light provided by the embodiment of the present utility model includes two parts: a lens body 100 and a base body 200. Among them, an exit surface 110 is formed on one end surface of the lens body 100, and a convex part 120 extending in a direction away from the exit surface 110 is formed on the lens body 100 at the end opposite to the exit surface 110. The outer surface of the convex part 120 defines a first reflection surface 121, and an incident part 130 opposite to the exit surface is provided at the end of the convex part 120; the base body 200 is hermetically installed on the end surface of the lens body 100 where the convex part 120 is provided. A reflective chamber 210 for placing the convex part 120 therein is formed on the base body 200. The inner surface of the reflective chamber 210 defines a second reflection surface 211, and the second reflection surface 211 is spaced apart from the first reflection surface 121. A window 220 corresponding to the incident part 130 is opened at the bottom of the reflective chamber 210.

[0027] When assembling it onto a circuit board, the lamp bead corresponds to the incident part 130 through the window 220. It can be imagined that when the lens is installed on the circuit board, the base 200 is hermetically installed on the circuit board by bonding or potting. The base 200 and the lens body are hermetically connected by gluing or ultrasonic welding. In this embodiment, the lens body is made of an optically transparent material and has relatively high light transmission performance. After the lamp bead emits light, the light enters along the incident part 130 and exits through the exit surface 110. At this time, after the lamp bead emits light and the light refracts into the lens body through the incident part 130, part of the light can refract along the side wall of the convex part 120. At this time, the second reflecting surface 210 of the reflecting chamber 210 of the base 200 refracts this part of the light, so that it enters the convex part 120 again, and after refraction, it exits along the exit surface 110. It should be noted that when the light refracted by the second reflecting surface 211 and entering the convex part 120 generates Fresnel loss, that is, part of the light will be refracted by the first reflecting surface 121. At this time, this part of the refracted light is refracted again by the second reflecting surface 211 and re-enters the convex part 120, thereby improving the light utilization efficiency and enabling all the light generated by the lamp bead to be refracted so that all the light can exit along the exit surface 110.

[0028] By setting the lens into two parts, namely the lens body and the base 200, part of the light refracted by the lamp bead in the lens body can be refracted again into the convex part 120 through the second reflecting surface 211 of the reflecting chamber 210, and after being refracted by the convex part 120, it exits along the exit surface 110. Through this technical solution, all the light emitted by the lamp bead can be handled in this way, avoiding the occurrence of light leakage and improving the lighting efficiency.

[0029] In this embodiment, the base 200 has a light shielding setting, and the inner surface 211 of the reflecting chamber 210 is set as a smooth total reflection surface. In this embodiment, the base 200 is made of an opaque plastic material to achieve light shielding. In other embodiments, it can also be achieved by setting an opaque light shielding object on the surface of the base 200, such as a coating or a pasted light shielding item.

[0030] In this embodiment, the vertical cross-section of the convex portion 120 is trapezoidal, such that the first reflecting surface 121 is inclined, and the second reflecting surface 211 of the reflecting chamber 210 is set to have the same inclination angle as the first reflecting surface 121. By setting the first reflecting surface 121 at an inclined angle, when the reflecting chamber 210 refracts light, the incident light can be incident at an angle less than the critical reflection angle, so that all the light can be reflected into the convex portion 120. It can be understood that a small amount of reflection will exist. After multiple refractions through the inner surface 211 of the reflecting chamber 210, the reflected light can be all incident into the convex portion 120.

[0031] In other embodiments, the first reflecting surface 121 of the convex portion 120 can be set as a curved surface protruding outward, the second reflecting surface 211 of the reflecting chamber 210 is set as a curved surface concave inward, and the inner surface of the reflecting chamber 210 and the outer surface of the convex portion 120 have the same curvature.

[0032] Similar to the above, by setting the second reflecting surface 211 of the reflecting chamber 210 as a curved surface with the same curvature as the first reflecting surface 121, the refractive index of light can be increased, so that the light leaking out of the convex portion 120 can be all refracted into the convex portion 120 and emitted along the emitting surface 110.

[0033] In order to enable the incident portion 130 to refract the light emitted by the lamp bead more efficiently when the lamp bead emits light, the incident portion 130 is recessed on the end surface of the convex portion 120 and defines a third reflecting surface 122 inside the convex portion. The third reflecting surface 122 of the convex portion 120 is an inclined surface.

[0034] By recessing the incident portion 130 on the end surface of the convex portion 120, a space for placing the lamp bead inside can be formed. At the same time, the light emitted by the lamp bead can be refracted along the third reflecting surface 122 of the convex portion 120 and the incident portion 130 inside this space, and then incident into the lens body. It is worth noting that the third reflecting surface 122 of the convex portion 120 has an inclined angle, so that the incident angle of the light emitted by the lamp bead can be incident at an angle less than the critical reflection angle and refracted in the direction of the emitting surface 110 on the first reflecting surface 121 of the convex portion 120, so that the light is emitted at the emitting surface 110.

[0035] In this embodiment, the incident portion 130 is provided with a convex arc surface protruding outward, which can emit the light emitted by the lamp bead vertically along the emitting surface 110.

[0036] For the convenience of installing the lens body 100 and the base body 200, a docking portion 140 is also formed on the lens body 100. The docking portion 140 is arranged around the convex portion 120. A docking platform 230 is formed on the base body 200 to be docked with the docking portion 140. It can be known from Figures 2-3 that the docking platform 230 is arranged as an annular platform structure. During the docking process, the docking portion 140 is embedded into the docking platform 230 and they are pressed against each other. Subsequently, hermetic connection is carried out by ultrasonic welding or bonding.

[0037] To further improve the hermeticity after the lens body 100 and the base body 200 are installed, the outer surface of the docking portion 140 is provided with a gradually converging inclined surface, and the inner surface of the docking platform 230 is provided with a gradually opening inclined surface. After the docking portion 140 is snapped into the docking platform 230, the docking portion 140 and the docking platform 230 are pressed against each other. When the lens body 100 is gradually pressed into the base body 200, since the corresponding surfaces of the docking platform 230 and the docking portion 140 are both inclined surfaces, during the gradual pressing process, the pressing force between the docking platform 230 and the docking portion 140 can be gradually increased, thereby further improving the hermetic performance between the lens body 100 and the base body 200.

[0038] At this time, when installing on the circuit board provided by the embodiment of the present utility model for a waterproof lens, it can be installed and fixed by bonding. That is to say, an adhesive material is provided at the bottom of the base body 200, and the waterproof lens is hermetically installed on the circuit board through the adhesive material. In this embodiment, the adhesive material can be 3M double-sided tape or glue.

[0039] To accurately position with the circuit board and provide another sealing method when installing the waterproof lens, at least two positioning posts 201 are formed on the bottom of the base body 200 facing away from the base body. Through the positioning posts 201, the waterproof lens can be accurately installed on the circuit board, and the waterproof lens can also be hermetically installed on the circuit board by pouring glue into the gap between the base body 200 and the circuit board.

[0040] To mix the light emitted by the lamp beads and ensure that the light emitted through the lens is softer and the color is more uniform, as Figure 1 shown, a curved compound eye array 111 is provided on the light-emitting surface 110. Through the compound eye array 111, the light can be mixed, ensuring the softness of the light and making the color more uniform.

[0041] In this embodiment, the compound eye array 111 is composed of a number of adjacent ommatidia. Each ommatidium has a top surface that bulges upward and has an arc structure. The shape of the ommatidium can be formed into polygons, circles, or ellipses.

[0042] Through a waterproof lens that comprehensively refracts light provided by an embodiment of the present utility model, by hermetically installing the lens body 100 on the seat body 200, the light emitted by the lamp bead and refracted around the convex portion 120 enters the convex portion 120 again after being refracted by the inner surface of the light reflection chamber 210, and is emitted along the exit surface 110. Thereby, it can ensure that all the light emitted by the lamp bead is refracted out, improve the lighting efficiency, and by providing a compound eye array 111 on the exit surface 110, it can mix the light of the lamp bead, improve the softness of the light, and ensure the color uniformity of the light.

[0043] The above is only a preferred embodiment of the present utility model, and it is not a limitation to the present utility model in any form. Although the present utility model is disclosed above in a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, when making some changes or modifications using the above-disclosed technical content into equivalent embodiments of equivalent changes, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments according to the technical means of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A waterproof lens that comprehensively refracts light, characterized in that, Comprising: A lens body, an exit surface is formed on one end surface of the lens body, a convex portion extending in a direction away from the exit surface is formed at one end of the lens body opposite to the exit surface, a first reflecting surface is defined by the outer surface of the convex portion, and an incident portion opposite to the exit surface is provided at the end of the convex portion; A base body, which is hermetically installed on the end surface of the lens body provided with the convex portion, a light reflecting chamber for placing the convex portion therein is formed on the base body, a second reflecting surface for reflecting the light leakage of the convex portion is defined by the inner surface of the light reflecting chamber, the second reflecting surface and the first reflecting surface are arranged at intervals, and a window corresponding to the incident portion is opened at the bottom of the light reflecting chamber.

2. The waterproof lens that comprehensively refracts light according to claim 1, wherein, The cross-section of the convex portion is in a trapezoidal structure, so that the first reflecting surface is inclined, and the inclination angle of the second reflecting surface is the same as that of the first reflecting surface.

3. The waterproof lens that comprehensively refracts light according to claim 1, wherein The first reflecting surface is set as a curved surface convex towards the outside, the second reflecting surface is provided with a curved surface concave towards the inside, and the second reflecting surface and the first reflecting surface have the same curvature.

4. The waterproof lens for comprehensively refracting light according to claim 1, characterized in that, The incident portion is recessed on the end surface of the convex portion and defines a third reflecting surface inside the convex portion, and the third reflecting surface is an inclined surface.

5. The waterproof lens for comprehensively refracting light according to claim 4, characterized in that, The incident portion is provided with a convex arc surface protruding towards the outside.

6. The waterproof lens that comprehensively refracts light according to claim 1, wherein A docking portion is further formed on the lens body, the docking portion surrounds the convex portion, and a docking platform for docking with the docking portion is formed on the base body.

7. A waterproof lens that comprehensively refracts light according to claim 6, characterized in that The outer surface of the docking portion is provided with a gradually converging inclined surface, and the inner surface of the docking platform is provided with a gradually opening inclined surface. After the docking portion is inserted into the docking platform, the docking portion and the docking platform press against each other.

8. The waterproof lens for comprehensively refracting light according to claim 1, characterized in that, At least two positioning columns extending away from the base body are formed on the bottom of the base body.

9. The waterproof lens for comprehensively refracting light according to claim 1, wherein A compound eye array with a curved surface is arranged on the exit surface.

10. A waterproof lens that comprehensively refracts light according to claim 1, characterized in that, The base body has a light shielding setting, and the inner surface of the light reflecting chamber is set as a smooth total reflection surface.

Images