LED optical assembly and system capable of changing light distribution and lamp
By combining the structure of the reflective cup and lens, changing the light distribution is solved, and the problem of difficulty in effectively controlling light in traditional technologies is solved, achieving better lighting effects.
Patent Information
- Application Number
- CN202421708547.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-18
AI Technical Summary
Traditional ways of changing light distribution, such as focusing lenses and light-changing sheets, are difficult to effectively control the light, resulting in poor lighting effects.
By setting up a combination structure of the reflective cup and the lens, after the light energy is emitted by the LED, part of it is reflected by the reflective cup, part directly reaches the lens's light entering surface through the air, diffuses through the incoming microstructure and then refracts to the lens's light exit surface, and then emits after convergence through the outgoing surface.
The secondary light distribution and precise light control are realized, improving the lighting effect.
Smart Images
Figure CN222783383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lighting, and in particular to an LED optical component, a system and a lamp for changing light distribution. Background Art
[0002] like Figure 1-2 As shown, the traditional way to change the light distribution is mainly to add a focusing lens 1 and a light-changing sheet 2, such as Figure 3 As shown, the light from the LED light source 3 enters the focusing lens 1, which is designed with a small angle. The concentrated light energy is secondary distributed through the light-changing microstructure 21 of the light-changing sheet 2 to achieve angle changes, and finally emitted from the light-emitting plane 22 of the light-changing sheet 2. Among them, the light-emitting plane 22 of the light-changing sheet 2 is a planar structure, which makes it difficult to achieve effective control of the light, and the lighting effect is poor. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an LED optical component, system and lamp for changing light distribution.
[0004] In a first aspect, the utility model provides an LED optical component for changing light distribution, comprising a reflective cup and a lens, wherein the lens is fixedly connected to the light emitting side of the reflective cup, a light incident surface of the lens is provided with a light incident microstructure, and the light emitting surface of the lens is an outer convex surface.
[0005] The utility model sets a combined structure of a reflector cup and a lens. After the light energy is emitted by the LED, part of it is reflected by the reflector cup and part directly reaches the light incident surface of the lens through the air. After being diffused by the light incident microstructure of the lens, it is refracted and reaches the light exiting surface of the lens. After being converged by the light exiting surface of the lens, it is emitted from the lens.
[0006] The reflective cup and lens light incident microstructure of the utility model can change part of the light distribution, and then redistribute the light distribution through the light emitting surface of the lens. The present invention adds light control on the light emitting surface, realizes secondary light distribution, and can achieve precise light control, thereby achieving better lighting effects.
[0007] Preferably, the outer convex surface is a free-form surface or a Fresnel surface. The free-form surface may be a curved surface.
[0008] Preferably, the light incident microstructure is composed of a plurality of arranged micro units, and each of the micro units includes a convex free-form surface.
[0009] Preferably, the light incident microstructure is arranged in a linear array / annular array / rectangular array of several micro units.
[0010] Preferably, the reflective cup and the lens are bonded or clamped.
[0011] Preferably, the reflective cup is provided with a first mounting platform, the lens is provided with a second mounting platform, and the first mounting platform and the second mounting platform are fixedly connected.
[0012] Preferably, the light incident surface of the lens is tilted relative to the LED light source, so as to achieve polarization.
[0013] In a second aspect, the utility model provides an LED optical system for changing light distribution, comprising a plurality of any one of the LED optical components for changing light distribution.
[0014] Preferably, a plurality of the optical components are arranged in a linear array / annular array / rectangular array.
[0015] In a third aspect, the utility model provides a lamp, comprising the LED optical system for changing light distribution.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] The reflective cup and lens light incident microstructure of the utility model can change part of the light distribution, and then redistribute the light distribution through the light emitting surface of the lens. The present invention adds light control on the light emitting surface, realizes secondary light distribution, and can achieve precise light control, thereby achieving better lighting effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the three-dimensional structure of a focusing lens plus a light-changing film.
[0019] Figure 2 Cross-sectional view of the focusing lens plus the dimmer.
[0020] Figure 3 The light path diagram of the condenser lens and the dimmer.
[0021] Figure 4 The three-dimensional structure of the LED optical system for changing light distribution described in the utility model is shown in FIG. Figure 1 .
[0022] Figure 5 The three-dimensional structure of the LED optical system for changing light distribution described in the utility model is shown in FIG. Figure 2 .
[0023] Figure 6 The three-dimensional structure schematic diagram is a cutaway view of the middle of the LED optical system for changing light distribution described in the utility model.
[0024] Figure 7 This is a cross-sectional view of the LED optical system for changing light distribution described in the present invention.
[0025] Figure 8The three-dimensional structure of the reflective cup of the LED optical system for changing light distribution described in the utility model is shown in FIG. Figure 1 .
[0026] Fig. 9 The three-dimensional structure of the reflective cup of the LED optical system for changing light distribution described in the utility model is shown in FIG. Figure 2 .
[0027] Fig.10 The three-dimensional structure of the light-changing sheet of the LED optical system for changing light distribution according to the utility model is shown in FIG. Figure 1 .
[0028] Fig.11 The three-dimensional structure of the light-changing sheet of the LED optical system for changing light distribution according to the utility model is shown in FIG. Figure 2 .
[0029] Fig.12 This is a light path diagram of the light modifier of the LED optical system for changing light distribution described in the utility model.
[0030] Markings in the figure:
[0031] 1- Focusing lens,
[0032] 2- dimmer,
[0033] 21-Light-changing microstructure,
[0034] 22-Light exit plane,
[0035] 3-LED light source,
[0036] 4-Reflective cup,
[0037] 41- Legs
[0038] 42-Cavity,
[0039] 43-First installation platform,
[0040] 5- Lens,
[0041] 51-light incident microstructure,
[0042] 52-light freeform surface,
[0043] 53-Second installation platform. DETAILED DESCRIPTION
[0044] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0045] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.
[0046] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.
[0047] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.
[0048] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.
[0049] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
[0050] Example 1
[0051] like Figure 4-7 As shown, an LED optical component for changing light distribution includes a reflector cup 4 and a lens 5, wherein the lens 5 is fixedly connected to the light-emitting side of the reflector cup 4. The reflector cup 4 and the lens 5 are fixedly connected, and there are many ways of fixed connection, such as bonding or clamping. In order to facilitate the fixed connection between the reflector cup 4 and the lens 5, a first mounting platform 43 can be provided on the reflector cup 4, and a second mounting platform 53 can be provided on the lens 5. The first mounting platform 43 and the second mounting platform 53 are fixedly connected, for example, they can be bonded to each other, or buckles and slots are provided respectively for clamping. The first mounting platform 43 and the reflector cup 4 can be an integrally formed component, and can be a circle platform provided on the outer edge of the reflector cup 4. The second mounting platform 53 and the lens 5 can be an integrally formed component, and can be a circle platform provided on the outer edge of the lens 5. When fixedly connected, the first mounting platform 43 and the second mounting platform 53 can be fitted to each other or set at a certain distance, as long as the fixed connection between the reflector cup 4 and the lens 5 can be achieved.
[0052] like Figure 8-9 As shown, a through cavity 42 is provided in the middle of the reflective cup 4, and the light emitted by the LED light source 3 enters the cavity 42 and is emitted after being reflected, and the reflective cup 4 can control the direction and distribution of the light to a certain extent. Furthermore, in order to facilitate the installation and fixation with structures such as lamps, legs 41 can also be provided on the periphery of the reflective cup 4, and the number of legs 41 is usually not less than 2, and can also be 3 or 4, etc.
[0053] like Figure 10-11 As shown, the side of the lens 5 close to the reflective cup 4 is a light incident surface, and the side of the lens 5 away from the reflective cup 4 is a light emitting surface 52 .
[0054] A light incident microstructure 51 may be provided on the light incident surface, and the light incident microstructure 51 may diffuse the light to a certain extent and improve the uniformity of the light. Specifically, in some implementations, the light incident microstructure 51 may be arranged by a plurality of microunits, and each of the microunits may include a convex free-form surface, for example, each microunit may include a curved surface, etc. According to different light distribution requirements, the light incident microstructure 51 may be arranged in an array or irregularly, and the array arrangement may be a linear array, a circular array, a rectangular array, etc.
[0055] exist Fig.11In the illustrated embodiment, the micro-units are arranged in a rectangular array, the connecting edge between two adjacent micro-units is a straight edge, each micro-unit further includes a crescent-shaped edge perpendicular to the straight edge, and the free curve shape of the micro-unit can be various to match different lighting requirements.
[0056] The light-emitting surface 52 is an outer convex surface, so as to further achieve the effect of collecting light, and then emit the light out of the lens after converging. The light-emitting surface 52 can be a free-form surface, such as a curved surface, or the light-emitting surface 52 can also be a Fresnel surface. The light-emitting surface 52 can have a curvature in only one direction, and a straight extension structure in the other direction, so as to achieve single-direction precise light control, for example Figure 4 As shown; it can also have curvature in two directions at the same time, that is, similar to a spherical surface, to achieve light control in multiple directions.
[0057] In some embodiments, the light incident surface of the lens 5 may be directly opposite to the LED light source 3 to achieve positive light output. In some embodiments, the light incident surface of the lens 5 may be tilted relative to the LED light source 3, such as Figure 7 As shown, to achieve polarization.
[0058] like Fig.12 As shown, the utility model sets a reflective cup 4 + lens 5 combination structure. After the LED light source 3 emits light, part of it is reflected by the reflective cup 4 and part directly reaches the lens light incident surface through the air. After being diffused by the lens light incident microstructure 51, it is refracted and reaches the lens light exit surface 52. After being converged by the lens light exit surface 52, it is emitted from the lens.
[0059] The reflective cup 4 and the lens light incident microstructure 51 of the utility model can change part of the light distribution, and then redistribute the light distribution through the lens light output surface 52. Compared with the existing conventional structure, the present invention adds light control on the lens light output surface, realizes secondary light distribution, and can achieve precise light control, thereby achieving better lighting effects.
[0060] Example 2
[0061] An LED optical system for changing light distribution includes a plurality of LED optical components for changing light distribution as described in Example 1.
[0062] Several of the optical components may be arranged in an array or irregularly, and further, may be arranged in a linear array, a circular array or a rectangular array, so as to meet a variety of different light distribution requirements.
[0063] Example 3
[0064] A lamp comprises the LED optical system for changing light distribution.
[0065] 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. An LED optical component for changing light distribution, characterized in that: It comprises a reflective cup (4) and a lens (5), wherein the lens (5) is fixedly connected to the light-emitting side of the reflective cup (4), a light-incident microstructure (51) is provided on the light-incident surface of the lens (5), and the light-emitting surface (52) of the lens (5) is an external convex surface.
2. The LED optical component for changing light distribution according to claim 1, characterized in that: The outer convex surface is a free-form surface or a Fresnel surface.
3. The LED optical component for changing light distribution according to claim 1, characterized in that: The light incident microstructure (51) is composed of a plurality of arranged micro units, each of which comprises a convex free-form surface.
4. The LED optical component for changing light distribution according to claim 3, characterized in that: The light incident microstructure (51) is composed of a plurality of micro-unit linear arrays / circular arrays / rectangular arrays.
5. The LED optical component for changing light distribution according to claim 1, characterized in that: The reflective cup (4) and the lens (5) are bonded or clamped together.
6. The LED optical component for changing light distribution according to claim 5, characterized in that: The reflective cup (4) is provided with a first mounting platform (43), and the lens (5) is provided with a second mounting platform (53), and the first mounting platform (43) and the second mounting platform (53) are fixedly connected.
7. An LED optical component for changing light distribution according to any one of claims 1 to 6, characterized in that: The light incident surface of the lens (5) is arranged tilted relative to the LED light source (3).
8. An LED optical system for changing light distribution, characterized in that: The invention comprises a plurality of LED optical components for changing light distribution as described in any one of claims 1-7.
9. The LED optical system for changing light distribution according to claim 8, characterized in that: A plurality of the optical components are arranged in a linear array / annular array / rectangular array.
10. A lamp, characterized in that: The invention comprises an LED optical system for changing light distribution as claimed in claim 8 or 9.