Combined line lamp lens and line lamp
By using a combined line light lens in the line lights, the design of the light guide column and the transformer strip is used to reflect the original blocked light to the outlet surface, solving the problem of low and difficult to narrow the line lighting wiring efficiency, and realize it, and realize it. The flexible lighting needs have improved the overall light efficiency and the compression effect of lens size.
Patent Information
- Application Number
- CN202420352059.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-26
AI Technical Summary
Existing line lamps have problems such as low light efficiency in the entire light, difficulty in making cup-shaped lens line lamps, and silicone-encapsulated line lamps cannot achieve light distribution at specific angles.
The combined line light lens is used, including long strips of light guide columns and transformers. The light guide column has an incident surface and a reflection surface. The light -changing strip has an inlet surface and out of the outlet. Through these free curved surface design The light reflex to the outlet surface, improves the efficiency of light, and realizes narrowing and light distribution needs through the combination of light guide columns and light strips.
The efficiency of the entire lighting is improved, and the lens size of the lens size is narrowed at the same size of the same light source. It can achieve appropriate light distribution under different needs, and the structure is simple, the manufacturing is convenient, and the effect is good.
Smart Images
Figure CN222417168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lamps, in particular to a combined linear lamp lens and a linear lamp. Background Art
[0002] Conventional linear lights are LED light sources plus diffusion plates. The LED light source is installed in a profile (such as aluminum alloy, plastic) groove, and a diffusion plate is set at the profile groove. Since the light output range of the LED light source reaches 120°, most of the light from the LED light source hits the two side walls of the profile groove, and a small part of the light is scattered through the diffusion plate, so the overall light efficiency is not high.
[0003] Line lights that use transparent plastic lenses can improve the overall lighting effect to a certain extent. Several cup-shaped lenses are arranged along the length of the line lights, and each cup-shaped lens corresponds to an LED light source. However, due to the size limitations of the light source and the cup-shaped lens structure, the cup-shaped lens near the light source end is a cavity, which is divided into an incident surface 1 through which the light is directly transmitted and an incident surface 2 through which the light enters the side reflection surface. The incident surface 2 is nearly horizontal (or similar to horizontal) with the light emitting direction. In order for the light to be fully reflected on the side reflection surface, the side reflection surface needs to have an angle θ1 with the light emitting direction to achieve full reflection, which makes it difficult to make the entire lamp narrow.
[0004] Although some line lights that directly use silicone-encapsulated LEDs can achieve a narrower width, they cannot achieve light distribution at a specific angle. Utility Model Content
[0005] The purpose of the utility model is to provide a combined line lamp lens and a line lamp in view of the problems in the prior art that the light efficiency of the conventional diffuser plate line lamp is low, the cup lens line lamp is difficult to be made narrow due to size limitations, and the silicone encapsulated line lamp cannot achieve light distribution.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] In the first aspect, the utility model provides a combined linear light lens, comprising a long light guide column and a long light-changing strip, wherein the light guide column comprises a first incident surface, a reflection surface and a first exit surface, and the light-changing strip comprises a second incident surface, wherein the first incident surface and the first exit surface are arranged opposite to each other, the reflection surfaces are arranged on both sides of the first incident surface, and there is a gap between the first exit surface and the second incident surface.
[0008] Wherein, the first incident surface, the reflecting surface, the first exiting surface and the second incident surface are all free-form surfaces.
[0009] A portion of the light is refracted from the first incident surface of the light guide column to the first exit surface, and then refracted from the second incident surface to be transmitted through the light modifier strip; another portion of the light is refracted from the first incident surface of the light guide column to the reflective surface, and after being reflected from the reflective surface, is transmitted from the light guide column through the first exit surface, and then is transmitted through the light modifier strip.
[0010] The light guide column has only one incident surface, so the angle θ2 between the reflective surface on the side of the light guide column and the light emitting direction can be much smaller than θ1, and can be close to horizontal and still achieve total reflection of light. According to the tangent formula of the triangle, at the same lamp height, the smaller the angle, the smaller the lens size.
[0011] By adopting the combined linear lamp lens described in the utility model, the light originally blocked by the side wall of the profile is reflected to the first exit surface through the reflecting surface of the lens, thereby improving the light efficiency of the whole lamp. By setting the long strip of the light guide column structure lens, it can be made narrower than the conventional cup-shaped lens under the same light source size, so that the lens size can be compressed to the extreme. By setting the dimming strip and cooperating with the light guide column, different lighting distribution requirements of the whole lamp can be achieved. The combined linear lamp lens has a simple structure, is easy to manufacture, and has a good effect.
[0012] As a preferred technical solution of the utility model, the light-changing strip further includes a second emitting surface, the second emitting surface and the second incident surface are arranged opposite to each other, and the second emitting surface is a free-form surface.
[0013] As a preferred technical solution of the utility model, a plurality of microstructures are provided on the first exit surface and / or the second incident surface, and the microstructures include one or more of cylindrical surfaces, compound eye surfaces, and frosted surfaces, and the microstructures can be added according to actual optical requirements.
[0014] As a preferred technical solution of the present utility model, the size of the gap a≥0mm.
[0015] As a preferred technical solution of the present utility model, the width of the first exit surface is greater than the width of the first incident surface.
[0016] As a further preferred technical solution of the present invention, the cross-section of the light guide column is T-shaped, the first exit surface is located at the top of the T-shape, the first incident surface is located at the bottom of the T-shape, and the reflection surfaces are located on both sides of the belly of the T-shape.
[0017] As a preferred technical solution of the utility model, two sides of the light-changing strip in the width direction are connected to two sides of the light-guiding column in the width direction, and the gap forms a cavity.
[0018] As a further preferred technical solution of the present invention, the light guide column and the light changing strip are an integrally formed structure.
[0019] With this structure, the combined linear light lens can be processed by an extrusion process, thereby simplifying assembly and reducing mold costs and usage costs.
[0020] As a further preferred technical solution of the present invention, the width of the cavity is B, the optical width of the light guide column is b, and B≥b.
[0021] In the second aspect, the utility model also provides a linear light, comprising a combined linear light lens as described in any one of the above items and at least one light source, wherein the light source is arranged on one side of the first incident surface, and the light sources are spaced apart along the length direction of the combined linear light lens, and there is a distance between the light source and the light guide column.
[0022] By adopting the linear lamp described in the utility model, the light originally blocked by the side wall of the profile is reflected to the first emitting surface through the reflecting surface of the lens, thereby improving the light efficiency of the whole lamp. By setting the long strip of the light guide column structure lens, it can be made narrower than the conventional cup-shaped lens under the same light source size, so that the lens size can be compressed to the extreme. By setting the dimming strip and cooperating with the light guide column, different light distribution requirements of the whole lamp can be achieved. The linear lamp has a simple structure, is easy to manufacture, and has a good effect.
[0023] As a preferred technical solution of the present utility model, the light source is an LED light source.
[0024] As a preferred technical solution of the present utility model, the width of the first incident surface is D, the width of the light source is d, and D≥d.
[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0026] 1. The combined linear lamp lens and the linear lamp described in the utility model reflect the light originally blocked by the side wall of the profile to the first emitting surface through the reflecting surface of the lens, thereby improving the light efficiency of the whole lamp. By setting the long strip of the light guide column structure lens, it can be made narrower than the conventional cup-shaped lens under the same light source size, so that the lens size can be compressed to the extreme. By setting the dimming strip and cooperating with the light guide column, different light distribution requirements of the whole lamp can be achieved. The combined linear lamp lens and the linear lamp have a simple structure, are easy to manufacture, and have good effects.
[0027] 2. The utility model preferably provides a combined linear light lens and a linear light, wherein the light guide column and the light-changing strip are an integrally formed structure, and the combined linear light lens can be processed by an extrusion process, thereby simplifying assembly and reducing mold costs and use costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the structure of the linear light in Example 1;
[0029] Figure 2 Schematic diagram of the optical cross section of the linear light in Example 1 Figure 1 ;
[0030] Figure 3 Schematic diagram of the optical cross section of the linear light in Example 1 Figure 2 ;
[0031] Figure 4 This is a schematic diagram of light emission of the linear lamp in Example 1;
[0032] Figure 5 This is a schematic diagram of the structure of the combined linear light lens in Example 2;
[0033] Figure 6 This is a schematic diagram of the optical cross-section of the linear light in Example 2.
[0034] Markings in the figure: 1-light guide column, 11-first incident surface, 12-reflection surface, 13-first exit surface, 2-light variable strip, 21-second incident surface, 22-second exit surface, 3-light source, 4-gap. DETAILED DESCRIPTION
[0035] The utility model is described in detail below in conjunction with the accompanying drawings.
[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0037] In the related technology, there are the following pain points: First, the line lights with conventional LED light sources and diffusers, due to the obstruction of the side walls of the profile, the light transmitted from the diffuser accounts for a very small part of the light emitted by the light source, resulting in the problem of low light efficiency of the entire lamp; second, the line lights with transparent plastic lenses, all of which are cup-shaped, and several cup-shaped lenses are arranged at intervals along the length of the line lights. The size of the cup-shaped lenses limits the width of the entire lamp and it is difficult to make it narrow; third, the line lights with silicone encapsulated LEDs cannot achieve light distribution at a specific angle. For this reason, the technical solution of this application was produced, and the following is combined with Figures 1 to 6 To elaborate.
[0038] Example 1
[0039] like Figures 1 to 4As shown, a linear light according to the present invention comprises a combined linear light lens and at least one light source 3, wherein the light source 3 is an LED light source.
[0040] like Figure 1 As shown, the combined linear light lens includes a long strip-shaped light guide column 1 and a long strip-shaped light-changing strip 2 .
[0041] like Figure 2 As shown, the light guide column 1 includes a first incident surface 11, a reflective surface 12 and a first exit surface 13, the light variable strip 2 includes a second incident surface 21 and a second exit surface 22, the first incident surface 11 and the first exit surface 13 are arranged opposite to each other, the first exit surface 13 and the second incident surface 21 are arranged opposite to each other, the second incident surface 21 and the second exit surface 22 are arranged opposite to each other, the reflective surface 12 is provided on both sides of the first incident surface 11, and there is a gap 4 between the first exit surface 13 and the second incident surface 21, wherein the first incident surface 11, the reflective surface 12, the first exit surface 13, the second incident surface 21 and the second exit surface 22 are all free-form surfaces.
[0042] like Figure 1 and Figure 2 As shown, the light source 3 is arranged on one side of the first incident surface 11 , and the light sources 3 are arranged at intervals along the length direction of the combined linear light lens, and there is a distance between the light source 3 and the light guide column 1 .
[0043] like Figure 3 As shown, the width of the first incident surface 11 is D, the width of the light source 3 is d, D≥d, and the size of the gap 4 is a≥0 mm.
[0044] like Figure 4 As shown, a portion of the light emitted by the light source 3 is refracted by the first incident surface 11 of the light guide column 1 to the first exit surface 13, and then refracted by the second incident surface 21 and transmitted out from the second exit surface 22; another portion of the light is refracted by the first incident surface 11 of the light guide column 1 to the reflective surface 12, and after being reflected by the reflective surface 12, is transmitted out of the light guide column 1 through the first exit surface 13, and then is transmitted out through the light variable strip 2.
[0045] In a specific embodiment, a plurality of microstructures are disposed on the first emission surface 13 and / or the second incident surface 21. The microstructures include one or more of a cylindrical surface, a compound eye surface, and a frosted surface. The microstructures can be added according to actual optical requirements.
[0046] In a specific embodiment, the width of the first emission surface 13 is greater than the width of the first incident surface 11. Figures 1 to 4As shown, the cross-section of the light guide column 1 is T-shaped, the first output surface 13 is located at the top of the T, the first incident surface 11 is located at the bottom of the T, the reflecting surface 12 is located on both sides of the belly of the T, and the distance between the two reflecting surfaces 12 gradually increases from the side of the first incident surface 11 to the side of the first output surface 13, and the width of the first output surface 13 is less than or equal to the width of the second incident surface 21.
[0047] The light guide column 1 has only one first incident surface 11, so that the angle θ2 between the reflective surface 12 on the side of the light guide column 1 and the light emitting direction can be much smaller than θ1, and can be close to horizontal and still achieve total reflection of light. According to the tangent formula of the triangle, at the same lamp height, the smaller the angle, the smaller the lens size.
[0048] The linear lamp described in the present embodiment reflects the light originally blocked by the side wall of the profile to the first emitting surface 13 through the reflecting surface 12 of the lens, thereby improving the light efficiency of the whole lamp. By setting the long strip-shaped structural lens of the light guide column 1, it can be made narrower than the conventional cup-shaped lens under the same light source size, thereby being able to compress the lens size to the extreme. By setting the dimming strip 2 and cooperating with the light guide column 1, different light distribution requirements of the whole lamp can be achieved. The linear lamp has a simple structure, is easy to manufacture, and has a good effect.
[0049] Example 2
[0050] like Figure 5 and Figure 6 As shown, a linear light described in the utility model is based on Example 1, and the two sides of the dimming strip 2 in the width direction are connected to the two sides of the light guide column 1 in the width direction, and the gap 4 forms a cavity, that is, the light guide column 1 and the dimming strip 2 are two separate individuals, and the connection methods between the two include bonding, snap connection, bolt connection, clamp clamping connection, profile limit docking, etc.
[0051] In a specific embodiment, Figure 5 and Figure 6 As shown, the light guide column 1 and the light-changing strip 2 are an integrally formed structure. With this structure, the combined linear light lens can be processed by extrusion technology, which simplifies assembly and reduces mold costs and usage costs.
[0052] In a specific embodiment, Figure 6 As shown, the width of the cavity is B, the optical width of the light guide column 1 is b, B≥b, wherein the width of the two reflecting surfaces 12 close to the first emitting surface 13 is the optical width of the light guide column 1, and in this embodiment, b>D.
[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A combined linear light lens, characterized in that: The invention comprises a long strip-shaped light guide column (1) and a long strip-shaped light-changing strip (2), wherein the light guide column (1) comprises a first incident surface (11), a reflection surface (12) and a first exit surface (13), and the light-changing strip (2) comprises a second incident surface (21), wherein the first incident surface (11) and the first exit surface (13) are arranged opposite to each other, the reflection surface (12) is arranged on both sides of the first incident surface (11), and a gap (4) is provided between the first exit surface (13) and the second incident surface (21).
2. The combined linear light lens according to claim 1, characterized in that: The light-changing strip (2) further comprises a second emitting surface (22), wherein the second emitting surface (22) and the second incident surface (21) are arranged opposite to each other.
3. The combined linear light lens according to claim 1, characterized in that: A plurality of microstructures are provided on the first emission surface (13) and / or the second incident surface (21), wherein the microstructures include one or more of a cylindrical surface, a compound eye surface, and a frosted surface.
4. The combined linear light lens according to claim 1, characterized in that: The size of the gap (4) is a≥0 mm.
5. The combined linear light lens according to claim 1, characterized in that: The width of the first emission surface (13) is greater than the width of the first incident surface (11).
6. The combined linear light lens according to claim 5, characterized in that: The cross section of the light guide column (1) is T-shaped, the first emission surface (13) is located at the top of the T-shape, the first incident surface (11) is located at the bottom of the T-shape, and the reflection surfaces (12) are located on both sides of the belly of the T-shape.
7. The combined linear light lens according to any one of claims 1 to 6, characterized in that: The two sides of the light-changing strip (2) in the width direction are connected to the two sides of the light-guiding column (1) in the width direction, and the gap (4) forms a cavity.
8. The combined linear light lens according to claim 7, characterized in that: The light guide column (1) and the light changing strip (2) are an integrally formed structure.
9. The combined linear light lens according to claim 7, characterized in that: The width of the cavity is B, the optical width of the light guide column (1) is b, and B≥b.
10. A linear light, characterized in that: The invention comprises a combined linear light lens as claimed in any one of claims 1 to 9 and at least one light source (3), wherein the light source (3) is arranged on one side of the first incident surface (11), the light sources (3) are arranged at intervals along the length direction of the combined linear light lens, and there is a distance between the light source (3) and the light guide column (1).