Optical composite panel for a luminaire

Abstract

The utility model discloses a kind of optical composite board for luminaire, including diffusion layer located inside and functional layer located outside, transparent or opaque connecting layer is clamped between the diffusion layer and functional layer, a plurality of small holes for communicating diffusion layer and functional layer are opened on the connecting layer, the horizontal section shape of the small hole is one or more of square, hexagon, circle, pin shape or irregular shape. Replace traditional mechanical connection by adhesive connection, save buckle / screw structure, reduce material and processing cost.

Description

Technical Field

[0001] This utility model relates to the field of light guide device technology, specifically to an optical composite material for lamps. Background Technology

[0002] Currently, to achieve functions such as light diffusion, glare reduction, polarization adjustment, and beam shaping, lighting fixtures typically employ diffuser plates and anti-glare plates, often installed separately and connected via mechanical clips or slots. However, this separate structure has the following drawbacks:

[0003] High cost: Two layers of boards need to be processed or purchased separately, resulting in higher material and processing costs;

[0004] Complex installation: It requires the installation of two layers of panels in stages, which increases the assembly process and time costs;

[0005] Poor optical consistency: The split structure is prone to uneven light effect due to gaps or misalignment between layers. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model proposes an optical composite material for lamps.

[0007] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0008] An optical composite board for lighting fixtures includes an inner diffusion layer and an outer functional layer, with a transparent or opaque connecting layer sandwiched between the diffusion layer and the functional layer. The connecting layer includes a flat optical adhesive layer, or the connecting layer includes a plurality of arrayed connecting dots, which fix the diffusion layer and the functional layer together as a whole.

[0009] In a preferred embodiment, the diffusion layer contains a plurality of scattering particles.

[0010] In a preferred embodiment, the optical adhesive layer and the bonding adhesive include one of UV-curable adhesive, hot melt adhesive, flexible silicone or OCA adhesive.

[0011] In a preferred embodiment, the optical adhesive layer is transparent, semi-transparent, or opaque, and a plurality of small holes connecting the diffusion layer and the functional layer are formed on the optical adhesive layer. The horizontal cross-sectional shape of the small holes is one or more of the following: square, hexagonal, circular, triangular, or irregular.

[0012] In a preferred embodiment, the surface of the functional layer is provided with a plurality of arrayed prisms, pyramids or microlenses.

[0013] In a preferred embodiment, the included angle between the two faces of the prism is 85-145°.

[0014] In a preferred embodiment, the surface of the diffusion layer is provided with several optical microstructures of regular or irregular shapes.

[0015] In a preferred embodiment, the surface of the functional layer is provided with at least one coating layer.

[0016] Compared with existing technologies, the beneficial effects are:

[0017] 1. Adhesive bonding replaces traditional mechanical connections, eliminating the need for clips / screws and reducing material and processing costs.

[0018] 2. The double-layer composite structure achieves optical function integration, avoids uneven gaps between layers, and improves the consistency of light efficiency.

[0019] 3. The composite board only needs to be fixed once during installation, simplifying the lamp assembly process.

[0020] 4. When the connecting layer is semi-transparent or opaque, you can design a different pattern of small holes during the pasting process to enhance the aesthetics of the lamp. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of one embodiment of the present invention.

[0022] Figure 2 This is an exploded structural diagram of another embodiment of the present invention.

[0023] Reference numerals: 1. Diffusion layer; 2. Functional layer; 3. Connecting layer; 4. Pinhole; 5. Prism; 6. Connecting adhesive; 7. Optical adhesive layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] An optical composite material for lighting fixtures includes an inner diffusion layer 1 and an outer functional layer 2, with a connecting layer 3 sandwiched between the diffusion layer 1 and the functional layer 2.

[0027] The diffusion layer 1 is a 0.6 mm thick PS diffusion plate, whose inner and / or outer surfaces are etched or imprinted with several regularly or irregularly shaped optical microstructures that diffuse light. Diffusion particles are contained within the diffusion plate. The optical microstructures include pyramids, prisms, lenses, or other irregular protrusions / recesses.

[0028] The functional layer 2 is a 0.6mm thick PS anti-glare plate, with an array of prisms 5 molded on its inner and / or outer surfaces. The included angle between two adjacent surfaces is 85-145°, and in this embodiment it is 115°, to achieve the functions of anti-glare and light spot shaping. Furthermore, the surface of the functional layer 2 is provided with at least one coating layer, so that the functional layer 2 has one or more functions such as high reflection, beam splitting, attenuation, and light filtering.

[0029] The connecting layer 3 includes several arrays of PUR hot melt adhesive dispensing, which fix the diffusion layer 1 and the functional layer 2 together.

[0030] Example 2

[0031] An optical composite material for lighting fixtures includes an inner diffusion layer 1 and an outer functional layer 2, with a connecting layer 3 sandwiched between the diffusion layer 1 and the functional layer 2.

[0032] The diffusion layer 1 is a PS plate with a thickness of 0.6 mm, and it contains scattering particles.

[0033] The functional layer 2 is a 0.125mm thick PET film with a hexagonal lens array for anti-glare function on its surface. Furthermore, at least one coating layer is provided on the surface, giving the functional layer 2 one or more functions such as high reflectivity, beam splitting, attenuation, and light filtering.

[0034] The connecting layer 3 is an OCA adhesive layer (0.08 mm thick), with a refractive index of 1.52 and a light transmittance of 98%. It connects the diffusion layer 1 and the functional layer 2. When the OCA adhesive layer is transparent, light can pass through directly. When the OCA adhesive layer is translucent or opaque, several small holes 4 are formed on the OCA adhesive layer, connecting the diffusion layer 1 and the functional layer 2. The horizontal cross-sectional shape of the small holes 4 is one or more of the following: square, hexagonal, circular, triangular, or irregular.

[0035] Example 3

[0036] An optical composite material for lighting fixtures includes an inner diffusion layer 1 and an outer functional layer 2, with a connecting layer 3 sandwiched between the diffusion layer 1 and the functional layer 2.

[0037] The diffusion layer 1 is a shaped PMMA plate with a thickness of 1.5 mm (bendable radius ≥ 50 mm), and its inner and / or outer surfaces are laser-engraved with a honeycomb microlens structure.

[0038] The functional layer 2 is a 0.8 mm thick polyurethane (PU) optical film, with a sinusoidal microlens structure (0.5 mm period, 0.1 mm depth) molded on its inner and / or outer surfaces to achieve polarization adjustment. Furthermore, the surface of the functional layer 2 is provided with at least one coating layer, enabling the functional layer 2 to possess one or more functions including high reflectivity, beam splitting, attenuation, and filtering.

[0039] The connecting layer 3 is a flexible silicone layer (0.15 mm thick), with a refractive index of 1.41 and an elongation at break ≥200%. It connects the diffusion layer 1 and the functional layer 2. When the flexible silicone layer is transparent, light can pass through directly. When the flexible silicone layer is translucent or opaque, several small holes 4 are formed on the flexible silicone layer, connecting the diffusion layer 1 and the functional layer 2. The horizontal cross-sectional shape of the small holes 4 is one or more of the following: square, hexagonal, circular, triangular, or irregular.

[0040] Example 4

[0041] An optical composite material for lighting fixtures includes an inner diffusion layer 1 and an outer functional layer 2, with a connecting layer 3 sandwiched between the diffusion layer 1 and the functional layer 2.

[0042] The diffusion layer 1 is a PC board with a thickness of 1.8 mm, and contains silicon dioxide scattering particles.

[0043] The functional layer 2 is a 1.2mm thick PET sheet with an anti-glare pyramidal array structure on its surface. Furthermore, the surface of the functional layer 2 is provided with at least one coating layer, enabling the functional layer 2 to possess one or more functions such as high reflectivity, spectral dispersion, attenuation, and light filtering.

[0044] The connecting layer 3 consists of several arrays of UV-curable adhesive dots, which fix the diffusion layer 1 and the functional layer 2 together.

[0045] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An optical composite material for lighting fixtures, characterized in that, It includes an inner diffusion layer (1) and an outer functional layer (2). A light-transmitting connecting layer (3) is sandwiched between the diffusion layer (1) and the functional layer (2). The connecting layer (3) includes a flat optical adhesive layer (7), or the connecting layer (3) includes a plurality of arrayed connecting dots (6). The diffusion layer (1) and the functional layer (2) are fixedly connected as one unit by the optical adhesive layer (7) or the connecting dots (6).

2. The optical composite material for lamps as described in claim 1, characterized in that, The optical adhesive layer (7) and the bonding adhesive (6) include one of UV-curable adhesive, hot melt adhesive, flexible silicone or OCA adhesive.

3. The optical composite material for lamps as described in claim 1, characterized in that, The optical adhesive layer (7) is transparent, semi-transparent or opaque. Several small holes (4) are formed on the optical adhesive layer (7) to connect the diffusion layer (1) and the functional layer (2). The horizontal cross-sectional shape of the small holes (4) is one or more of the following: square, hexagonal, circular, triangular or irregular.

4. The optical composite material for lamps as described in claim 1, characterized in that, The surface of the functional layer (2) is provided with several arrayed prisms (5), pyramids or several microlens structures.

5. The optical composite material for lamps as described in claim 4, characterized in that, The included angle between the two faces of the prism (5) is 85-145°.

6. The optical composite material for lamps as described in claim 1, characterized in that, The surface of the diffusion layer (1) is provided with several optical microstructures of regular or irregular shapes.

7. The optical composite material for lamps as described in claim 1, characterized in that, The diffusion layer (1) contains a number of scattering particles.

Images