Wide-angle wall washer and lens element thereof

Abstract

The application provides a lens element, which comprises a main lens and a sub-lens arranged adjacently, the main lens and the sub-lens jointly receive light from a first light source, the main lens comprises a first light-out surface arranged on opposite sides of the first light source, and the sub-lens is arranged on a first side of the main lens, wherein the sub-lens comprises a third light-in surface directly facing the first light source, a third total reflection surface, a fourth total reflection surface and a second light-out surface, and the second light-out surface faces a second side of the main lens; a first light component of the first light source is incident into the main lens through a first light-in port, and is guided out through the first light-out surface; a second light component of the first light source is incident into the third light-in surface through an outer edge of the first light-in port, and is guided out to the second side through the second light-out surface after being reflected by the third total reflection surface and the fourth total reflection surface in the sub-lens in sequence. According to the application, part of light of the light source is irradiated to a wall surface through twice total reflection optical surfaces, so that a top dark area is illuminated, and the wall washing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of lighting fixtures, and more particularly to a wide-angle wall washer light and its lens element. Background Technology

[0002] With the continuous advancement and development of lighting technology, people have increasingly higher requirements for lighting quality. LED lights, due to their high light output efficiency and good focusing performance, are increasingly used in home and museum lighting applications. Currently, common wall washer lights on the market are ceiling lights, using a conventional polarizing lens and reflector to emit light from the ceiling onto the wall. This often results in uneven light distribution and noticeable dark areas on the ceiling skyline, which detract from the sense of depth and uniformity in the lighting. Traditional wall washer lights are structurally limited in their effectiveness; the lack of corresponding optical surfaces on the ceiling skyline for supplemental lighting further restricts the wall washer effect.

[0003] To compensate for the dark areas at the top of the ceiling, this invention redesigns a lens element to provide a wide-angle wall washer light with this lens element, which greatly improves the problem of dark areas at the top. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is the problem of uneven light spot and dark areas when existing wall washer lights illuminate the wall from the ceiling.

[0005] To achieve the above objectives, the present invention provides a lens element comprising a primary lens and a secondary lens arranged adjacent to each other, the primary lens and the secondary lens jointly receiving light from a first light source, a first light entrance port corresponding to the position of the first light source being formed on the primary lens, the primary lens including a first light exit surface disposed on the opposite side of the first light source, the secondary lens disposed on the first side of the primary lens, and a second light entrance port being formed between the secondary lens and the primary lens, wherein the secondary lens includes a third light entrance surface directly facing the first light source, the primary lens being connected to the third light entrance surface on the first side and forming the second light entrance port, the secondary lens also including a third total internal reflection surface, a fourth total internal reflection surface, and a second light exit surface, the third total internal reflection surface being connected to the third light entrance surface, the fourth total internal reflection surface being connected to the second light exit surface, and the second light exit surface facing the second side of the primary lens; a first light component of the first light source enters the primary lens through the first light entrance port and is exited through the first light exit surface, the second light component of the first light source passes through the outer edge of the first light entrance port to the third light entrance surface, and then is reflected successively by the third total internal reflection surface and the fourth total internal reflection surface in the secondary lens, and is exited through the second light exit surface on the second side.

[0006] Furthermore, the third light-incident surface includes a converging portion, which is disposed at one end of the third light-incident surface near the first light source. It is configured to receive the refraction of the second light component of the first light source and distribute the refracted light onto the third total internal reflection surface.

[0007] Furthermore, the converging part is a convex transparent surface that protrudes toward the first light source.

[0008] Furthermore, the third total reflection surface of the sub-lens is a flat surface, and the fourth total reflection surface is a curved surface, with the center of curvature of the curved surface located on the side facing the main lens.

[0009] Furthermore, the main lens and the secondary lens are connected, the first light-emitting surface and the second light-emitting surface are connected and form an angle, and the second light-emitting surface extends in a direction away from the first light source.

[0010] Furthermore, both the first and second light-emitting surfaces are flat surfaces.

[0011] Furthermore, the main lens includes a first total reflection surface and a second total reflection surface disposed outside the main lens, and the first light entrance includes a first light entrance surface, a central light entrance surface and a second light entrance surface connected in sequence. The first light entrance surface and the first total reflection surface are connected, and the first total reflection surface reflects all light rays incident from the first light entrance surface to the first light exit surface for export. The second light entrance surface and the second total reflection surface are connected, and the second total reflection surface reflects all light rays incident from the second light entrance surface to the first light exit surface for export.

[0012] Furthermore, the main lens has a cup-shaped structure, with the first total reflection surface and the second total reflection surface connected to form an annular surface surrounding the outside of the main lens, and the first light-incident surface and the second light-incident surface connected to form an annular surface surrounding the first light source.

[0013] In one embodiment of the present invention, a side lens is further included, which is connected adjacent to the main lens on the second side of the main lens and includes a third light inlet. The third light inlet surrounds the second light source. The side lens and the main lens share a first light-emitting surface. The light from the second light source enters the side lens through the third light inlet and is then exited through the first light-emitting surface.

[0014] Furthermore, the side lens includes a fifth total reflection surface and a sixth total reflection surface disposed outside the side lens, and the third light entrance includes a fourth light entrance surface, a fifth light entrance surface, and a sixth light entrance surface connected in sequence. The fourth light entrance surface and the fifth total reflection surface are connected, and the fifth total reflection surface reflects all light rays incident from the fourth light entrance surface to the first light exit surface for export. The sixth light entrance surface and the sixth total reflection surface are connected, and the sixth total reflection surface reflects all light rays incident from the sixth light entrance surface to the first light exit surface for export.

[0015] The present invention also provides a wide-angle wall washer light, including a lamp housing, a face ring and the above-mentioned lens element, wherein the face ring is detachably disposed on the end face of the lamp body, the lens element is integrally formed and fixedly disposed between the lamp housing and the face ring, the face ring is supported on the lower end of the lens element, and the first light-emitting surface and the second light-emitting surface are exposed outside the face ring.

[0016] Furthermore, the surface ring includes a first surface ring and a second surface ring, wherein the first surface ring supports and circumferentially surrounds the first light-emitting surface, and the second surface ring abuts against the intersection of the fourth total reflection surface and the second light-emitting surface.

[0017] Technical effects:

[0018] To compensate for the dark areas at the top of the ceiling, this invention redesigns the optical lens to evenly distribute the point light source onto the illuminated surface. A secondary lens containing a set of secondary total internal reflection optical surfaces is placed on one side of the main lens, directing part of the light source's rays onto the wall within a certain range, thus illuminating the dark areas at the top of the wall and improving the wall-washing effect. When installed at a higher position, this luminaire achieves uniform illumination of the floor and walls, while also providing anti-glare effects.

[0019] This invention uses LED chips as the light source, which has the advantages of stable light source, high production efficiency, and great flexibility in product combination. The lens element in this invention is integrally molded using an automated injection molding process, and a single lens assembly replaces the previous conventional solution of a lens plus a reflector, making the product simpler in terms of components and easier to assemble.

[0020] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the lens element of the present invention.

[0022] Figure 2 yes Figure 1 A schematic diagram of the optical path of a lens element.

[0023] Figure 3 This is a schematic diagram of another embodiment of the lens element of the present invention.

[0024] Figure 4 This is a cross-sectional structural diagram of the lens element and the lamp of the present invention.

[0025] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure along the AA direction.

[0026] Figure 6This is a schematic diagram of the appearance of an embodiment of the lens element of the present invention.

[0027] Figure 7 This is a schematic diagram of the external structure of an embodiment of the wide-angle wall washer light of the present invention.

[0028] The components include: 100 lens elements, 1 main lens, 10 first light inlet, 11 first light outlet, 12 first light inlet, 13 central light inlet, 14 second light inlet, 15 first total reflection surface, 16 second total reflection surface, 2 secondary lenses, 20 second light inlet, 21 second light outlet, 22 third light inlet, 221 converging section, 23 third total reflection surface, 24 fourth total reflection surface, 3 first light source, 3a first light component, 3b second light component, 4 side lenses, 40 third light inlet, 41 fifth total reflection surface, 42 sixth total reflection surface, 43 fourth light inlet, 44 fifth light inlet, 45 sixth light inlet, 5 second light source, 200 lamp housing, 300 face ring, 301 first face ring, 302 second face ring, 400 heat sink, 500 circuit board, and 600 wall surface. Detailed Implementation

[0029] like Figure 1 and Figure 2 The image shows a lens element according to the present invention, which mainly includes a main lens 1 and a secondary lens 2 arranged adjacent to each other. The main lens 1 and the secondary lens 2 jointly receive light from a first light source 3. A first light entrance 10 corresponding to the position of the first light source 3 is formed on the main lens 1. The main lens 1 includes a first light exit surface 11 disposed on the opposite side of the first light source 3. The secondary lens 2 is disposed on the first side of the main lens 1, and a second light entrance 20 is formed between the secondary lens 2 and the main lens 1. The first light entrance 10 does not completely surround the first light source 3, but allows some of the light from the first light source 3 to reach the second light entrance 20.

[0030] The secondary lens 2 is farther from the first light source 3 than the primary lens 1. It includes a third light-incident surface 22 that directly faces the first light source 3. The third light-incident surface 22 extends from the first side of the primary lens 1 toward the first light source 3. The primary lens 1 and the third light-incident surface 22 form a second light-incident port 20. The secondary lens 2 also includes a third total reflection surface 23, a fourth total reflection surface 24, and a second light-exiting surface 21. The third total reflection surface 23 and the third light-incident surface 22 are connected, and the fourth total reflection surface 24 and the second light-exiting surface 21 are connected. The second light-exiting surface 21 faces the second side of the primary lens 1.

[0031] The first light component 3a of the first light source 3 enters the main lens 1 through the first light inlet 10 and is led out through the first light outlet 11. The second light component 3b of the first light source 3 enters the third light inlet 22 through the outer edge of the first light inlet 10, and is then reflected by the third total reflection surface 23 and the fourth total reflection surface 24 in the sub-lens 2 before being led out to the second side through the second light outlet 21.

[0032] The lens element of this invention can be used for lighting both floors and walls. Figure 4 The diagram shows the cross-sectional structure of a lens element formed by a vertical plane perpendicular to the wall, as shown in the diagram. Figure 4 Taking the direction shown in the figure as an example, the light source and lens element 100 are arranged in an up-down direction. The first light source 3 is above the main lens 1. The main lens 1 directs the first light component 3a downward to the ground. The secondary lens 2 is arranged on the first side to the left of the main lens 1. It is used to direct the second light component 3b to the right, that is, to the second side, and direct it to the wall 600 to achieve the effect of a wall washer light. The wall 600 is located at the lower right of the lens element 100.

[0033] The main lens 1 includes a first total reflection surface 15 and a second total reflection surface 16 disposed on both sides thereon. The first light entrance 10 includes a first light entrance surface 12, a central light entrance surface 13 and a second light entrance surface 14 connected in sequence. The first light entrance surface 12 and the second light entrance surface 14 are formed by extending the two ends of the central light entrance surface 13 toward the first light source 3 to form a concave structure. The first light entrance surface 12 and the first total reflection surface 15 are connected. The first total reflection surface 15 reflects all the light rays incident from the first light entrance surface 12 to the first light exit surface 11 and then leads them out. The second light entrance surface 14 and the second total reflection surface 16 are connected. The second total reflection surface 16 reflects all the light rays incident from the second light entrance surface 14 to the first light exit surface 11 and then leads them out after refraction by the first light exit surface 11. The light rays incident from the central light entrance surface 13 are refracted by the first light exit surface 11 and then led out.

[0034] The central light-incident surface 13 can be selected as a convex surface, so that the light rays refracted through the central light-incident surface 13 become concentrated, achieving a light-focusing effect. For example... Figure 2 As shown, the first light source 3 is offset from the center of the main lens 1, and the first light-incident surface 12 is relatively close to the first light source 3. The first light-incident surface 12 can also be a convex surface to converge the received light rays and form approximately parallel light rays to the first total internal reflection surface 15. Preferably, both the first total internal reflection surface 15 and the second total internal reflection surface 16 are flat surfaces. The light efficiency is improved by total internal reflection. The first exit surface is a flat surface, which is a planar structure suitable for light transmission. Its main function is to refract the light rays arriving at it to a farther distance through refraction. The light rays exiting from the second total internal reflection surface 16 are all subjected to total internal reflection in the sub-lens 2, resulting in low light intensity loss.

[0035] Through the main lens 1, the first light component 3a of the first light source 3 is guided downwards. The first light source 3 can be positioned on the principal optical axis of the main lens 1, or it can be positioned on a side offset from the principal optical axis.

[0036] In the sub-lens 2, the third light-incident surface 22 includes a converging portion 221, which is located at one end of the third light-incident surface 22 near the first light source 3. The converging portion 221 is configured to receive the second light component 3b of the first light source 3 and refract the light before distributing it onto the third total internal reflection surface 23. The second light component 3b of the first light source 3 comprises lateral rays with a small angular range; its luminous flux and intensity are less than those of the first light component 3a. The converging portion 221 is configured as a convex surface to converge this portion of light entering the sub-lens 2, making it approximately parallel. Furthermore, the light is distributed through the third total internal reflection surface 23 and the fourth total internal reflection surface 24, thereby improving the luminous efficiency of the light.

[0037] like Figure 1 and Figure 2 The third total internal reflection surface 23 and the fourth total internal reflection surface 24 are respectively disposed on the upper and lower sides of the sub-lens 2. Preferably, the third total internal reflection surface 23 is a flat surface and the fourth total internal reflection surface 24 is a curved surface. The center of curvature of each point on the fourth total internal reflection surface 24 is located on the side facing the main lens 1, that is, it protrudes outward in the direction away from the first light source 3. In one embodiment, the fourth total internal reflection surface 24 is a smooth arc surface. The light rays of the second light component 3b are formed into approximately parallel light rays after passing through the converging part 221. When they reach the fourth total internal reflection surface 24 for reflection, the light rays at different positions on the fourth total internal reflection surface 24 have different exit angles depending on the incident angle. The fourth total internal reflection surface 24 is set as a downwardly inclined arc surface. The light ray L1 at the upper end of the fourth total internal reflection surface 24 has a larger reflection angle, and the reflected light ray L1' is biased downward, while the light ray L2 at the lower end has a smaller reflection angle, and the reflected light ray L2' is biased upward. In this way, the light rays of the second light component 3b are distributed at different heights on the wall 600 after passing through the sub-lens 2.

[0038] The lens element of the present invention is integrally formed, with the main lens 1 and the secondary lens 2 connected together. The first light inlet 10 and the second light inlet 20 are located on the same side of the first light emitting surface 11. The first light emitting surface 11 and the second light emitting surface 21 are connected and form an angle, which is "L"-shaped. The second light emitting surface 21 is configured to extend downward. Furthermore, both the first light emitting surface 11 and the second light emitting surface 21 are flat surfaces.

[0039] like Figure 5 The diagram shows a schematic representation of the AA-section structure of the lens element of the present invention formed by a vertical plane parallel to the wall surface 600. (The last sentence appears to be incomplete and possibly refers to a different topic.) Figure 6 In one embodiment shown, the main lens 1 has a cup-shaped structure, with its first total reflection surface 15 and second total reflection surface 16 connected as one unit to form an annular surface along the outer side of the main lens 1. Similarly, the first light-incident surface 12 and the second light-incident surface 14 are connected to form an annular surface surrounding the first light source 3.

[0040] In another embodiment of the invention, such as Figure 3As shown, the lens element 100 also includes a side lens 4, which is connected adjacent to the main lens 1 on the second side and includes a third light inlet 40. The third light inlet 40 surrounds the second light source 5. The side lens 4 and the main lens 1 share a first light emitting surface 11. The light from the second light source 5 enters the side lens 4 through the third light inlet 40 and is then exited through the first light emitting surface 11.

[0041] The side lens 4 is adapted to direct the light from the second light source 5 downwards to supplement the light, and can be configured as one or more. The optical path of each light ray from the second light source 5 through the side lens 4 is similar to that of the main lens 1 through the first light source 3. The side lens 4 also includes a fifth total internal reflection surface 41 and a sixth total internal reflection surface 42 disposed on both sides of the side lens 4. The third light entrance 40 includes a fourth light entrance surface 43, a fifth light entrance surface 44, and a sixth light entrance surface 45 connected in sequence. The fourth light entrance surface 43 and the fifth total internal reflection surface 41 are connected, and the fifth total internal reflection surface 41 reflects all light rays incident from the fourth light entrance surface 43 to the first light exit surface 11 for exit. The sixth light entrance surface 45 and the sixth total internal reflection surface 42 are connected, and the sixth total internal reflection surface 42 reflects all light rays incident from the sixth light entrance surface 45 to the first light exit surface 11 for exit. In addition, light rays incident from the fifth light entrance surface 44 are refracted by the first light exit surface 11 and then exited.

[0042] In one embodiment, the side lens 4 has a cup-shaped structure, with its outer total reflection surface and the light-incident surface along the third light-incident port 40 connected together to form an annular surface.

[0043] The lens element 100 can be made of PMMA material, or it can be made of PC material, glass material, transparent material, translucent material, or colored transparent material, etc., and is integrally molded using an automated injection molding process. Those skilled in the art can make specific selections according to actual needs, without being limited by factors such as the type of material, transparency, and color.

[0044] The total internal reflection of each of the total internal reflection surfaces mentioned in this invention is closely related to the incident angle reaching each interface and the refractive index of the lens. Those skilled in the art can design it by combining the selection of lens material and actual application to achieve the conditions for total internal reflection.

[0045] In one embodiment, the lens element of the present invention is used for an LED light source. For the main lens 1 and the secondary lens 2, the first light source 3 uses an LED chip as the light emitter. According to Lambert's cosine law, the light intensity I0 along the normal direction of the surface where the LED chip is located is the maximum. As the angle θ between the light rays and the normal increases, the light intensity I... θ It becomes:

[0046] I θ =I0 cosθ,

[0047] It is evident that when the light from the light source deviates from the normal, the light intensity decreases as the tilt angle increases. Therefore, it can be concluded that the second light component 3b in the light emitted by the first light source 3 has a weaker light intensity. However, through the secondary lens 2 in this invention, the total internal reflection of this portion of the light is enhanced, and the light is redirected, directing the emitted light towards the wall 600. This enables illumination of the wall at a high point, such as the ceiling skyline, achieving a complete elimination of dark areas on the wall – something that conventional ceiling lights cannot achieve. Furthermore, the light from the first light component 3a, after refraction through the first light-incident surface 12, the central light-incident surface 13, and the second light-incident surface 14, has its range redistributed. After refraction through the first light-outceasing surface 11, it is emitted downwards, suitable for illuminating the ground from the top.

[0048] As an application of the aforementioned lens element, the present invention provides a wide-angle wall washer light, such as... Figure 7 As shown, it includes a lamp housing 200 and a face ring 300. The face ring 300 is detachably disposed on the end face of the lamp housing 200. A heat sink 400 is fixedly installed inside the lamp housing 200. The lens element 100 is integrally formed and installed in the lamp housing 200, fixed between the heat sink 400 and the face ring 300. A light source is fixedly installed between the lens element 100 and the heat sink 400. A first light source 3 and a second light source 5 are respectively installed on the upper side of the first light inlet 10 and the third light inlet 40. The second light inlet 20 receives part of the light from the first light source 3. The first light source 3 and the second light source 5 are one or more LED chips mounted on the circuit board 500. When multiple LED chips are distributed, the arrangement direction of the LED chips is parallel to the wall surface 600.

[0049] A face ring 300 is attached to the lower end of the lens element 100 and surrounds the lens element 100, with only the first light-emitting surface 11 and the second light-emitting surface 21 exposed outside the face ring 300. Specifically, it includes a first face ring 301 and a second face ring 302. The first face ring 301 supports and circumferentially surrounds the outer extension of the first light-emitting surface 11 so as not to affect the light emitted from the first light-emitting surface 11. The second face ring 302 supports the fourth total internal reflection surface 24 of the sub-lens 2 and abuts against the intersection of the fourth total internal reflection surface 24 and the second light-emitting surface 21. The second light-emitting surface 21 is exposed outside the second face ring 302, thus ensuring that the emitted light is not blocked. The second face ring 302 and the first face ring 301 are connected by a transition surface to form a ring that surrounds the lens element 100. In addition to providing support for the lens element 100, the first face ring 301 and the second face ring 302 also play a role in preventing glare and eliminating stray light by blocking the non-light-emitting surfaces.

[0050] The wide-angle wall washer light of the present invention utilizes a main lens and a secondary lens, which are installed on the ceiling to illuminate both the low area (ground) and the sides (walls), and solves the lighting difficulties of single-lamp ceiling-near walls.

[0051] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A lens element, characterized in that, The system includes a primary lens (1) and a secondary lens (2) arranged adjacent to each other. The primary lens (1) and the secondary lens (2) jointly receive light from a first light source (3). A first light entrance (10) is formed on the primary lens (1) corresponding to the position of the first light source (3). The primary lens (1) includes a first light exit surface (11) disposed on the opposite side of the first light source (3). The secondary lens (2) is disposed on the first side of the primary lens (1). A second light entrance (20) is formed between the secondary lens (2) and the primary lens (1). The main lens (1) includes a first total reflection surface (15) and a second total reflection surface (16) disposed outside the main lens (1). The first light inlet (10) includes a first light inlet surface (12), a central light inlet surface (13), and a second light inlet surface (14) connected in sequence. The first light inlet surface (12) and the first total reflection surface (15) are connected. The first total reflection surface (15) reflects all light rays incident from the first light inlet surface (12) to the first light outlet surface (11) for export. The second light inlet surface (14) and the second total reflection surface (16) are connected. The second total reflection surface (16) reflects all light rays incident from the second light inlet surface (14) to the first light outlet surface (11) for export. The secondary lens (2) includes a third light-incident surface (22) directly facing the first light source (3). The main lens (1) is connected to the third light-incident surface (22) on the first side and forms a second light-incident port (20). The secondary lens (2) also includes a third total reflection surface (23), a fourth total reflection surface (24), and a second light-exiting surface (21). The third total reflection surface (23) is connected to the third light-incident surface (22), and the fourth total reflection surface (24) is connected to the second light-exiting surface (21). The second light-exiting surface (21) faces the second side of the main lens (1). The first light component (3a) of the first light source (3) enters the main lens (1) through the first light inlet (10) and is led out through the first light outlet (11). The second light component (3b) of the first light source (3) is sent to the third light inlet (22) through the outer edge of the first light inlet (10), and then is reflected by the third total reflection surface (23) and the fourth total reflection surface (24) in the sub-lens (2) before being led out to the second side through the second light outlet (21). The third light-incident surface (22) includes a converging portion (221), which is disposed at one end of the third light-incident surface (22) near the first light source (3). It is configured to receive the second light component (3b) of the first light source (3) and distribute the refracted light to the third total reflection surface (23). It also includes a side lens (4), which is connected adjacent to the main lens (1) on the second side of the main lens (1), including a third light inlet (40), which surrounds the second light source (5). The side lens (4) and the main lens (1) share a first light-emitting surface (11). The light from the second light source (5) enters the side lens (4) through the third light inlet (40) and is then exited through the first light-emitting surface (11).

2. The lens element as described in claim 1, characterized in that, The converging part (221) is a convex surface that protrudes toward the first light source (3).

3. The lens element as described in claim 1, characterized in that, The third total reflection surface (23) of the sub-lens (2) is a flat surface, and the fourth total reflection surface (24) is a curved surface, with the center of curvature of the curved surface located on the side facing the main lens (1).

4. The lens element as claimed in claim 1, characterized in that, The main lens (1) and the secondary lens (2) are connected. The first light-emitting surface (11) and the second light-emitting surface (21) are connected and form an angle. The second light-emitting surface (21) extends away from the first light source (3).

5. The lens element as claimed in claim 1, characterized in that, Both the first light-emitting surface (11) and the second light-emitting surface (21) are flat surfaces.

6. The lens element as claimed in claim 1, characterized in that, The main lens (1) has a cup-shaped structure. The first total reflection surface (15) and the second total reflection surface (16) are connected to form an annular surface surrounding the outside of the main lens (1). The first light-incident surface (12) and the second light-incident surface (14) are connected to form an annular surface surrounding the first light source (3).

7. The lens element as claimed in claim 1, characterized in that, The side lens (4) includes a fifth total reflection surface (41) and a sixth total reflection surface (42) disposed outside the side lens (4). The third light inlet (40) includes a fourth light inlet surface (43), a fifth light inlet surface (44), and a sixth light inlet surface (45) connected in sequence. The fourth light inlet surface (43) and the fifth total reflection surface (41) are connected. The fifth total reflection surface (41) reflects all light rays incident from the fourth light inlet surface (43) to the first light outlet surface (11) for export. The sixth light inlet surface (45) and the sixth total reflection surface (42) are connected. The sixth total reflection surface (42) reflects all light rays incident from the sixth light inlet surface (45) to the first light outlet surface (11) for export.

8. A wide-angle wall washer light, comprising a lamp housing (200), a face ring (300), and a lens element as described in any one of claims 1-7, characterized in that, The face ring (300) is detachably disposed on the end face of the lamp housing (200). The lens element (100) is integrally formed and fixedly disposed between the lamp housing (200) and the face ring (300). The face ring (300) is supported on the lower end of the lens element (100). The first light-emitting surface (11) and the second light-emitting surface (21) are exposed outside the face ring (300).

9. The wide-angle wall washer light as described in claim 8, characterized in that, The surface ring (300) includes a first surface ring (301) and a second surface ring (302), wherein the first surface ring (301) supports and circumferentially surrounds the first light-emitting surface (11), and the second surface ring (302) abuts at the intersection of the fourth total reflection surface (24) and the second light-emitting surface (21).

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