Thin silica gel lens and lamp

Abstract

The utility model relates to the field of illumination, in particular to a thin type silica gel lens and a lamp, the thin type silica gel lens comprises a lens body made of silica gel, the lens body adopts a structure of at least two layers of reflecting surfaces, each layer of reflecting surface is provided with a corresponding incident surface, and the incident surfaces are arranged in a curved surface mode in the thickness direction of the lens body. The non-corresponding adjacent incident surface and the reflecting surface are connected through a transition connecting section, and the transition connecting section is configured in the light blocking area of the reflecting surface. According to the utility model, the transitional connecting section is arranged to connect the non-corresponding adjacent incident surface and the reflecting surface, and the transitional connecting section is arranged in the light blocking area of the reflecting surface, so that most of the incident surface can be arranged outside the light blocking area of the reflecting surface, and almost all light rays emitted by the light source can irradiate the incident surface; the thin silica gel lens improves the utilization rate of the incident plane, has better light control capability and optical effect, and is simple in structure, convenient to use and good in effect.

Description

Technical Field

[0001] This utility model relates to the field of lighting, and in particular to a thin silicone lens and lamp. Background Technology

[0002] LED light sources require lenses for light distribution to achieve ideal optical effects. Existing lenses are mostly manufactured using injection molding, and the lens structure needs to consider ease of demolding. The applicant's earlier Chinese patent application, CN222559859U, utilizes the soft properties of silicone lenses to solve the problem of injection molding and demolding even when the sidewall of the entrance aperture (i.e., the entrance surface) is not straight.

[0003] However, some thin lenses with relatively low profiles in existing technologies require a multi-layered reflective surface design, such as... Figure 1 As shown, taking a thin lens with a two-layer reflective surface design as an example, it includes a lens body 1. The lens body 1 is provided with an entrance hole for setting a light source 2. The lens body 1 is provided with a first entrance surface 11 and a first reflective surface 14, a second entrance surface 12 and a second reflective surface 15. The lens body 1 directly opposite the light source 2 is also provided with a third entrance surface 13. It can be seen that the first entrance surface 11 is usually directly connected to the second reflective surface 15. In order to facilitate injection molding and demolding, the first entrance surface 11 and the second entrance surface 12 are straight.

[0004] For this type of thin lens, in order to enhance its light control capability and improve its optical effect, its first incident surface 11 and second incident surface 12 are made into non-flat silicone lenses according to the technical solution of the aforementioned prior Chinese patent application. In this case, a blocking area 3 is formed between the side of the first incident surface 11 near the second reflecting surface 15 and the second reflecting surface 15. Figure 2 As shown, some of the light emitted by the light source 2 is blocked by the second reflecting surface 15 and cannot reach the first incident surface 11, which reduces the utilization rate of the first incident surface 11 and needs to be improved. Utility Model Content

[0005] The purpose of this invention is to address the problem in the existing technology where, when a thin lens with a multi-layered reflective surface is made into a silicone lens with a non-flat incident surface, an obstruction area is formed between the outer incident surface and the adjacent reflective surface, preventing some of the light emitted by the light source from reaching the incident surface and reducing the utilization rate of the incident surface. This invention provides a thin silicone lens and a lamp.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, the present invention provides a thin silicone lens, comprising a lens body made of silicone, wherein the lens body adopts at least two layers of reflective surface structure, each layer of the reflective surface having a corresponding incident surface, the incident surface being curved along the thickness direction of the lens body, and non-corresponding adjacent incident surfaces being connected to the reflective surface by a transition connecting section, the transition connecting section being disposed within the light-blocking area of ​​the reflective surface.

[0008] The thin silicone lens of this invention connects non-corresponding adjacent incident surfaces and reflecting surfaces by setting a transition connecting section, and the transition connecting section is positioned within the light-blocking area of ​​the reflecting surface. This allows most of the incident surface to be positioned outside the light-blocking area of ​​the reflecting surface, ensuring that almost all the light emitted from the light source can illuminate the incident surface. This improves the utilization rate of the incident surface, resulting in better light control and optical effects. The thin silicone lens has a simple structure, is easy to use, and has good performance.

[0009] As a preferred embodiment of this invention, at least one end of the incident surface is warped outward relative to the axis of the lens body.

[0010] As a preferred technical solution of this utility model, the incident surface is an irregularly shaped surface.

[0011] As a preferred technical solution of this utility model, the transition connecting section is provided as a straight surface, a curved surface or an irregular surface along the thickness direction of the lens body.

[0012] As a preferred technical solution of this utility model, the lens body includes an entrance hole for placing a light source.

[0013] As a further preferred technical solution of this utility model, the lens body adopts a two-layer reflective surface structure, and the lens body includes a first incident surface, a second incident surface, a third incident surface, a first reflective surface, and a second reflective surface;

[0014] The entrance aperture is provided with the first incident surface, the second reflecting surface, the second incident surface and the third incident surface in sequence from the hole wall toward the axis;

[0015] The first incident surface and the second reflecting surface are connected by the transition connection section;

[0016] The light rays passing through the first incident surface are refracted onto the first reflecting surface;

[0017] The light rays passing through the second incident surface are refracted onto the second reflecting surface;

[0018] The light rays passing through the third incident surface are refracted onto the exiting surface of the lens body.

[0019] As a preferred technical solution of this utility model, the reflective surface is provided with a scale structure.

[0020] As a preferred embodiment of this invention, the exit surface of the lens body includes a microstructure surface.

[0021] As a preferred technical solution of this utility model, the exit surface of the lens body is a frosted surface or a smooth surface.

[0022] Secondly, this utility model also provides a lamp, including a thin silicone lens as described in any of the above claims.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0024] The present invention discloses a thin silicone lens and lamp, which connects non-corresponding adjacent incident surfaces and reflective surfaces by setting a transition connecting section, and placing the transition connecting section within the light-blocking area of ​​the reflective surface. This allows most of the incident surface to be positioned outside the light-blocking area of ​​the reflective surface, so that almost all the light emitted by the light source can illuminate the incident surface, improving the utilization rate of the incident surface and providing better light control and optical effects. The thin silicone lens has a simple structure, is easy to use, and has good performance. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of a thin lens in the prior art.

[0026] Figure 2 for Figure 1 A schematic diagram of the structure in which the first and second incident surfaces are changed from straight surfaces to curved surfaces;

[0027] In the diagram, the markings are: 1-lens body, 11-first incident surface, 12-second incident surface, 13-third incident surface, 14-first reflecting surface, 15-second reflecting surface, 2-light source, 3-blocking area;

[0028] Figure 3 This is a cross-sectional structural diagram of the thin silicone lens of this application;

[0029] Figure 4 This is a schematic diagram (half-width) of the optical path of the thin silicone lens of this application.

[0030] Figure 5 This is a schematic diagram of the optical path between the first incident surface and the first reflecting surface (half-width).

[0031] Figure 6 This is a schematic diagram (half-width) of the optical path of the second incident surface and the second reflecting surface.

[0032] In the diagram, the markings are: 1-lens body, 11-first incident surface, 12-second incident surface, 13-third incident surface, 14-first reflecting surface, 15-second reflecting surface, 16-transition connecting section, and 2-light source. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0039] In related technologies, such as Figure 1 and Figure 2 As shown, if the light emitted from the light source 2 is directly refracted onto the exit surface through the third incident surface 13 in the middle of the lens body 1, this method has a relatively weak light control capability compared to the reflective surface due to the short optical path. Therefore, distributing more light onto the reflective surface can achieve better optical effects. For thin lenses, in order to enhance their light control capability and improve optical effects, the first incident surface 11 and the second incident surface 12 are made into non-flat silicone lenses according to the technical solution of the applicant's earlier Chinese patent application with publication number CN222559859U. In this case, a blocking area 3 is formed between the side of the first incident surface 11 near the second reflective surface 15 and the second reflective surface 15, such as... Figure 2 As shown, some of the light emitted by the light source 2 is blocked by the second reflecting surface 15 and cannot reach the first incident surface 11. This results in less light being received by the first reflecting surface 14 corresponding to the first incident surface 11, reducing the utilization rate of the first incident surface 11 and the first reflecting surface 14. Consequently, the lens has weak light control capability and poor optical performance, requiring improvement. Therefore, the technical solution of this application was developed, which is described below in conjunction with... Figures 3 to 6 To elaborate.

[0040] Example 1

[0041] like Figures 3 to 6 As shown, the thin silicone lens of this utility model includes a lens body 1 made of silicone. The lens body 1 adopts at least two layers of reflective surface structure. This embodiment uses the two-layer reflective surface structure shown in the figure as an example for illustration. This is not intended to limit the number of reflective surface layers, which can be increased according to actual needs.

[0042] The two-layer reflective structure includes a corresponding first incident surface 11 and a first reflecting surface 14, and a corresponding second incident surface 12 and a second reflecting surface 15. This correspondence is optical; that is, light is refracted through the first incident surface 11 and reflected by the first reflecting surface 14, and light is refracted through the second incident surface 12 and reflected by the second reflecting surface 15. It can be seen that the first incident surface 11 and the second reflecting surface 15 are not directly corresponding structures.

[0043] like Figures 1 to 3 As shown, the lens body 1 includes an entrance aperture and an exit surface. The entrance aperture is used to place the light source 2. Generally, the lens body 1 adopts a rotating body structure. The entrance aperture is generally located at the tail of the rotating body, and the axis of the entrance aperture coincides with the axis of the rotating body. The exit surface is generally located relative to the entrance aperture, that is, the exit surface is located at the front end of the rotating body. The outer wall of the rotating body is generally configured as the first reflecting surface 14 of the lens body 1. The first entrance surface 11, the second entrance surface 12 and the second reflecting surface 15 are all located in the entrance aperture. A third entrance surface 13 is also provided in the entrance aperture.

[0044] like Figures 3 to 6 As shown, the first incident surface 11 and the second incident surface 12 are curved along the thickness direction of the lens body 1. In an optional embodiment, at least one end of the first incident surface 11 and the second incident surface 12 is warped outward relative to the axis of the lens body 1.

[0045] In some optional embodiments, the first incident surface 11 and the second incident surface 12 are arranged in an irregular shape along the thickness direction of the lens body 1. The irregular shape can be a combination of straight and curved surfaces, or a complex irregular curved surface.

[0046] like Figures 3 to 6 As shown, the entrance aperture is provided with the first incident surface 11, the second reflecting surface 15, the second incident surface 12, and the third incident surface 13 sequentially arranged from the aperture wall towards the axis. The specific light transmission path is as follows:

[0047] The light emitted by the light source 2 is refracted by the first incident surface 11 onto the first reflecting surface 14, and then emitted by the exiting surface after total internal reflection by the first reflecting surface 14.

[0048] The light emitted by the light source 2 is refracted by the second incident surface 12 onto the second reflecting surface 15, and then emitted through total internal reflection by the second reflecting surface 15 to the exit surface.

[0049] The light emitted by the light source 2 is refracted by the third incident surface 13 and exited through the exit surface.

[0050] Non-corresponding adjacent incident surfaces and reflecting surfaces are connected by a transition connection section 16, that is, the first incident surface 11 and the second reflecting surface 15 are connected by the transition connection section 16, which is disposed within the light-blocking area of ​​the second reflecting surface 15. The transition connection section 16 is arranged as a straight surface, a curved surface, or an irregular surface along the thickness direction of the lens body 1.

[0051] In some alternative embodiments, the reflective surface is provided with a scale structure.

[0052] In some alternative embodiments, the exit surface of the lens body 1 includes a microstructure surface.

[0053] In some alternative embodiments, the exit surface of the lens body 1 is a frosted surface or a smooth surface.

[0054] The thin silicone lens described in this embodiment connects the non-corresponding adjacent incident surfaces and the reflecting surfaces by setting the transition connecting section 16, that is, connecting the first incident surface 11 and the second reflecting surface 15. The transition connecting section 16 is arranged within the light-blocking area of ​​the reflecting surface, so that most of the first incident surface 11 can be arranged outside the light-blocking area of ​​the second reflecting surface 15. This allows almost all the light emitted by the light source 2 to illuminate the first incident surface 11 and be refracted onto the first reflecting surface 14. Then, after total reflection by the first reflecting surface 14, it reaches the exit surface. This improves the utilization rate of the first incident surface 11 and the first reflecting surface 14, and reduces the light directly refracted by the third incident surface 13 in the middle. Therefore, distributing more light to the reflecting surface can achieve better light control and optical effect. This thin silicone lens has a simple structure, is easy to use, and has good effect.

[0055] Example 2

[0056] Unless otherwise shown, the lamp described in this utility model includes a thin silicone lens as described in Example 1.

[0057] 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 thin silicone lens, comprising a lens body (1) made of silicone, wherein the lens body (1) employs at least two layers of reflective surface structure, each layer of the reflective surface having a corresponding incident surface, the incident surface being curved along the thickness direction of the lens body (1), characterized in that, The non-corresponding adjacent incident surfaces and the reflecting surfaces are connected by a transition connection section (16), which is disposed within the light-blocking area of ​​the reflecting surface.

2. The thin silicone lens according to claim 1, characterized in that, At least one end of the incident surface is warped outward relative to the axis of the lens body (1).

3. The thin silicone lens according to claim 1, characterized in that, The incident surface is an irregularly shaped surface.

4. The thin silicone lens according to claim 1, characterized in that, The transition connecting section (16) is arranged in the form of a straight surface, a curved surface or an irregular surface along the thickness direction of the lens body (1).

5. The thin silicone lens according to claim 1, characterized in that, The lens body (1) includes an entrance aperture for placing a light source (2).

6. The thin silicone lens according to claim 5, characterized in that, The lens body (1) adopts a two-layer reflective surface structure. The lens body (1) includes a first incident surface (11), a second incident surface (12), a third incident surface (13), a first reflective surface (14), and a second reflective surface (15). The incident aperture is provided with the first incident surface (11), the second reflecting surface (15), the second incident surface (12) and the third incident surface (13) in sequence from the hole wall to the axis direction; The first incident surface (11) and the second reflecting surface (15) are connected by the transition connecting section (16); Light rays passing through the first incident surface (11) are refracted onto the first reflecting surface (14); The light rays passing through the second incident surface (12) are refracted onto the second reflecting surface (15); The light rays passing through the third incident surface (13) are refracted onto the exit surface of the lens body (1).

7. The thin silicone lens according to any one of claims 1-6, characterized in that, The reflective surface is provided with a scale structure.

8. The thin silicone lens according to any one of claims 1-6, characterized in that, The exit surface of the lens body (1) includes a microstructure surface.

9. The thin silicone lens according to any one of claims 1-6, characterized in that, The exit surface of the lens body (1) is either a frosted surface or a smooth surface.

10. A lamp, characterized in that, Including the thin silicone lens as described in any one of claims 1-9.

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