Polarizing lens of court lamp

Abstract

The spreadlight lens of the court lamp comprises a lens substrate applied to a lamp, a plurality of lenses are arranged on the lens substrate in a protruding mode, the two ends of each lens are the incident end and the emergent end respectively, and the emergent end is divided into a first light-transmitting body and a second light-transmitting body from top to bottom. Wherein the back face of the first light-transmitting body sinks inwards to form a light inlet cavity used for containing a light source, a reflecting groove is formed in the back face of the first light-transmitting body, a reflecting face is arranged on the side wall, close to the light inlet cavity, of the reflecting groove, and the reflecting face is used for reflecting light rays projected to the reflecting face through the light inlet cavity. The convex light-transmitting bodies are arranged on the lens, light rays emitted by a light source can enter the convex light-transmitting bodies to be refracted and diffused to be more uniform, meanwhile, the reflecting surfaces are arranged in the convex light-transmitting bodies, total reflection of the light rays entering the light-transmitting bodies can be achieved, light waste is reduced, and glare is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of optical lens technology, specifically a polarizing lens for stadium lights. Background Technology

[0002] As people's living standards improve, they engage in various recreational activities after work, among which ball sports are particularly popular. To meet this demand, many sports venues are open at night. However, current stadium lighting designs often focus only on basic lighting needs, neglecting considerations such as the visual comfort of athletes, the viewing experience of spectators, and the impact on the nighttime lives of residents near the stadium. These design limitations result in problems such as insufficient glare control and uneven light distribution on the field.

[0003] Current methods for achieving uniform light distribution in stadium lighting typically involve increasing the lamp's elevation angle or the number of lamps. Increasing the number of lamps increases costs, which will not be considered here. While increasing the elevation angle does make the light distribution more uniform, it also increases glare, thus increasing the impact on athletes, spectators, and residents. Glare control methods involve adding additional shades to reduce glare, but these shades not only reduce the lamp's luminous efficiency but also increase wind resistance, affecting the overall appearance of the lighting fixture. Therefore, all of these methods have limitations and cannot meet the growing demands of users. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a polarizing lens for stadium lights.

[0005] The technical solution adopted by this utility model is as follows: A polarizing lens for a stadium light includes a lens substrate used in the lighting fixture. A plurality of lenses are raised on the lens substrate. The two ends of the lenses are an incident end and an exit end, respectively. The exit end is divided into a first light-transmitting body and a second light-transmitting body from top to bottom. The back of the first light-transmitting body is recessed to form an incident light cavity for accommodating a light source. A reflective groove is formed on the back of the first light-transmitting body. A reflective surface is provided on the side wall of the reflective groove near the incident light cavity. The reflective surface is used to reflect the light projected onto the reflective surface through the incident light cavity.

[0006] In a preferred embodiment, the width, length, and thickness of the first light-transmitting body are all greater than the width, length, and thickness of the second light-transmitting body.

[0007] In a preferred embodiment, a plurality of the lenses are arranged in a matrix on the lens substrate, and the lenses in adjacent rows are staggered.

[0008] In a preferred embodiment, the first light-transmitting body and the second light-transmitting body are integrally formed, and the connection between the first light-transmitting body and the second light-transmitting body is a smooth transition.

[0009] In a preferred embodiment, the depth of the reflective groove is greater than the depth of the incident light cavity, the inner surface of the incident light cavity is an arc-shaped surface, and the reflective surface is a downward-facing arc-shaped surface.

[0010] In a preferred embodiment, the reflective surface is provided with multiple downwardly protruding edges, and the included angle between the edges is between 88 and 91°.

[0011] In a preferred embodiment, the lens is made of a transparent material, and the lens and the lens substrate are integrally formed.

[0012] In a preferred embodiment, the surfaces of both the first and second light-transmitting bodies bulge outward to form arc-shaped curved surfaces.

[0013] In a preferred embodiment, the maximum light intensity polarization angle of the lens is 65°.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. In this utility model, several convex light-transmitting bodies are set on the lens. The light emitted by the light source can enter the convex light-transmitting bodies for refraction and diffusion. Most of the final emitted light is biased to one side of the first light-transmitting body, making the light output more uniform. At the same time, a reflective surface is set in the convex light-transmitting body. During the light distribution process, the light entering the second light-transmitting body can achieve total internal reflection, which helps to improve the light utilization rate, reduce light waste, and reduce glare.

[0016] 2. In this utility model, the lenses in each adjacent row on the lens substrate are staggered to achieve a compact arrangement, which can reduce the size and weight of the lamp after overall assembly, thereby reducing the wind resistance of the lamp. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall planar structure of the present invention as viewed from the emission end;

[0018] Figure 2 This is a cross-sectional planar structural diagram of the lens in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the entire utility model;

[0020] Figure 4 This is a planar structural schematic diagram of the entire utility model as viewed from the emission end, and a partially enlarged structural schematic diagram.

[0021] Figure 5 This is a light distribution curve diagram of the lens in this utility model.

[0022] The markings in the figure are: 1-lens substrate, 2-lens, 21-first light-transmitting body, 22-second light-transmitting body, 23-incident cavity, 24-reflection groove, 25-reflecting surface. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] A polarizing lens for a stadium light, reference Figure 1-5 The system includes a lens substrate 1 used in lighting fixtures. Multiple lenses 2 are raised on the lens substrate 1 and arranged in a matrix on the lens substrate 1. The lenses 2 in adjacent rows are staggered. The lenses 2 in each adjacent row on the lens substrate 1 are staggered to achieve a compact arrangement. That is, the lower side of the upper row of lenses 2 can be placed in the gap formed between the two lower row of lenses 2, which can reduce the size and weight of the lighting fixture after overall assembly, thereby reducing the wind resistance of the lighting fixture and saving the manufacturing cost of the lighting fixture.

[0025] The lens 2 has an incident end and an exit end at its two ends, respectively. The exit end is divided into a first light-transmitting body 21 and a second light-transmitting body 22 from top to bottom. The back of the first light-transmitting body 21 is recessed to form an incident light cavity 23 for accommodating the light source. A reflective groove 24 is provided on the back of the first light-transmitting body 21. A reflective surface 25 is provided on the side wall of the reflective groove 24 near the incident light cavity 23. The reflective surface 25 is used to reflect the light projected onto the reflective surface 25 through the incident light cavity 23. With the first light-transmitting body 21 and the second light-transmitting body 22 on the lens, the light emitted from the light source enters the incident light cavity 23 and is refracted and diffused by the first light-transmitting body 21 and the second light-transmitting body 22 respectively, resulting in more uniform light output. During the light distribution process, the light entering the second light-transmitting body 22 can achieve total internal reflection, which helps to improve the light utilization rate. The light output efficiency of the lens can reach 92%, reducing light waste and glare.

[0026] Furthermore, lens 2 is an optical device with a large light intensity angle and a polarization angle of 65°, which can achieve a large-angle illumination even when glass is added to the lamp. Preferably, lens 2 has a size of 18mm × 20mm, the light source is an Osram P8, and lens 2 can achieve a light distribution with a beam angle of 18° × 118° and a polarization angle of 65°.

[0027] Furthermore, the width, length, and thickness of the first light-transmitting body 21 are all greater than those of the second light-transmitting body 22. The first light-transmitting body 21 and the second light-transmitting body 22 are integrally formed, and the connection between the first light-transmitting body 21 and the second light-transmitting body 22 is a smooth transition. The inner surface of the light-entry cavity 23 is an arc-shaped surface. The surfaces of the first light-transmitting body 21 and the second light-transmitting body 22 both bulge outward to form arc-shaped curved surfaces. After the emitted light enters the light-entry cavity 23, it is distributed by the first light-transmitting body 21 and the second light-transmitting body 22 respectively. Due to the influence of the shape and structure of the first light-transmitting body 21 and the second light-transmitting body 22, most of the final emitted light is biased to one side of the first light-transmitting body 21. The light distribution is reasonable and helps to improve the light utilization rate. The combined shape of the first light-transmitting body 21 and the second light-transmitting body 22 is roughly gourd-shaped.

[0028] Furthermore, the depth of the reflective groove 24 is greater than the depth of the light-entry cavity 23, and the reflective surface 25 is a downward-facing arc shape. With the above design, when light passes through the reflective surface 25, the shape of the reflective surface 25 will affect the light to be reflected in the direction of the first light-transmitting body 21, making the light output more uniform and reducing glare.

[0029] Furthermore, the reflective surface 25 is provided with multiple downward protruding edges, and the included angle between the edges is between 88-91°. Within this angle range, the incident angle of the light passing through the light guide part of the lens is greater than the critical angle range, thereby greatly improving the reflective efficiency of the reflective surface.

[0030] Furthermore, the lens 2 is made of a transparent material, and the lens 2 and the lens substrate 1 are integrally formed. The lens 2 and the lens substrate 1 are preferably made of PC material, but this is not limited here. Since they are integrally formed, the overall mold opening cost and production cost can be saved, and the overall yield rate can also be improved.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polarizing lens for a stadium light, characterized in that, The invention includes a lens substrate used in lighting fixtures. The lens substrate has multiple lenses protruding from it. The two ends of each lens are an incident end and an exit end, respectively. The exit end is divided into a first light-transmitting body and a second light-transmitting body from top to bottom. The back of the first light-transmitting body is recessed to form a light-incident cavity for accommodating a light source. A reflective groove is formed on the back of the first light-transmitting body. A reflective surface is provided on the side wall of the reflective groove near the light-incident cavity. The reflective surface is used to reflect the light projected onto the reflective surface through the light-incident cavity.

2. The polarizing lens for a stadium light as described in claim 1, characterized in that: The width, length, and thickness of the first light-transmitting body are all greater than the width, length, and thickness of the second light-transmitting body.

3. The polarizing lens for a stadium light as described in claim 1, characterized in that: Multiple lenses are arranged in a matrix on the lens substrate, and adjacent rows of lenses are staggered.

4. The polarizing lens for a stadium light as described in claim 1, characterized in that: The first and second light-transmitting bodies are integrally formed, and the connection between the first and second light-transmitting bodies is a smooth transition.

5. The polarizing lens for a stadium light as described in claim 1, characterized in that: The depth of the reflective groove is greater than the depth of the incident light cavity, the inner surface of the incident light cavity is an arc-shaped surface, and the reflective surface is a downward-facing arc-shaped surface.

6. The polarizing lens for a stadium light as described in claim 1, characterized in that: The reflective surface has multiple downward-protruding edges, and the included angle between the edges is between 88 and 91°.

7. The polarizing lens for a stadium light as described in claim 1, characterized in that: The lens is made of a transparent material and is integrally formed with the lens substrate.

8. The polarizing lens for a stadium light as described in claim 1, characterized in that: The surfaces of both the first and second light-transmitting bodies bulge outward to form arc-shaped curved surfaces.

9. The polarizing lens for a stadium light as described in claim 1, characterized in that: The maximum light intensity polarization angle of the lens is 65°.

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