CN-120521180-B - Dimming module with three-layer composite structure

CN120521180BCN 120521180 BCN120521180 BCN 120521180BCN-120521180-B

Abstract

The invention discloses a dimming module with a three-layer composite structure, which comprises a scattering layer, a gap layer and an angle control layer which are arranged in a composite mode, wherein the gap layer is clamped between the scattering layer and the angle control layer, the surface of the scattering layer is provided with a plurality of first optical microstructures, the surface of the angle control layer is provided with a plurality of second optical microstructures, and the gap layer comprises a plurality of dimming channels for guiding light rays from the scattering layer to the angle control layer. The light adjusting device with the three-layer composite structure, the scattering layer, the gap layer and the external angle control layer are integrated, high light efficiency is achieved through the functional coupling of the light adjusting channel and the angle control layer, and synchronous optimization of light angle control, anti-dazzle and light spot uniformity is achieved, so that the contradiction between scattering efficiency reduction and anti-dazzle uniformity in the traditional technology is broken through.

Inventors

SUN LIQIANG
TAN ZHIHAI
Tang Qihuai

Assignees

浙江彩丞科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250514

Claims (10)

1. The dimming module with the three-layer composite structure is characterized by comprising a scattering layer, a gap layer and an angle control layer which are arranged in a composite manner, wherein the gap layer is clamped between the scattering layer and the angle control layer; The surface of the scattering layer is provided with a plurality of first optical microstructures; The surface of the angle control layer is provided with a plurality of second optical microstructures; the gap layer comprises a plurality of dimming channels for guiding light rays from the scattering layer to the angle control layer, and the refractive index of the inner wall of each dimming channel is 1.2-1.8; the angle of the light in the dimming channel needs to satisfy: Or alternatively Wherein, the alpha angle is the average beam angle of the emergent light source of the scattering layer, The angle is the beam angle of the light incident in the dimming channel after passing through the dimming channel, The angle is the beam angle of the light ray incident in the inner wall of the dimming channel after passing through the dimming channel, Is the distance between the upper ends of two adjacent dimming channels, The distance between the lower ends of two adjacent dimming channels is H, and the height of the dimming channels is H; And it is desirable that the requirements be met, 。
2. The dimming module with the three-layer composite structure according to claim 1, wherein the inner wall of the dimming channel is made of one of silica gel, PVC, aluminum foil, PVB gel, PUR gel, UV gel, OCA gel hot melt adhesive or epoxy gel.
3. The dimming module having a three-layer composite structure of claim 1, wherein the dimming channel has a cross section of one of square, hexagonal or circular.
4. The dimming module having a three-layer composite structure according to claim 1, wherein the thickness of the gap layer is 0.001-1mm, and the duty ratio of the gap layer is 50% -99%.
5. The dimming module with three-layer composite structure of claim 1, wherein a plurality of dimming channels are distributed.
6. The dimming module having a three-layer composite structure according to claim 1, wherein the diffusion layer is provided with diffusion ions therein.
7. The dimming module with three-layer composite structure according to claim 1, wherein the first optical microstructure protrusions and/or depressions are disposed on the surface of the scattering layer, and the shape of the first optical microstructure comprises one of pyramids, ellipsoids, or irregular shapes.
8. The dimming module with three-layer composite structure according to claim 1, wherein the second optical microstructure protrusions and/or depressions are provided on the surface of the angle control layer, and the shape of the second optical microstructure comprises one of pyramids, lenses, V-grooves, or hemispheres.
9. The dimming module with three-layer composite structure according to claim 1, wherein the surface of the scattering layer is provided with a coating layer, and the coating layer comprises one or more layers of film systems with functions of oxidation resistance, heat insulation, ultraviolet resistance, reflection resistance and reflection resistance.
10. The dimming module with a three-layer composite structure according to claim 1, wherein the first optical microstructure is disposed on an inner side surface and/or an outer side surface of the scattering layer, and the second optical microstructure is disposed on an inner side surface and/or an outer side surface of the angle control layer.

Description

Dimming module with three-layer composite structure Technical Field The invention relates to the technical field of dimming modules, in particular to a dimming module with a three-layer composite structure. Background In the field of lighting technology, the performance of light adjustment directly determines the optical quality and user experience of the lamp. The traditional dimming system mostly adopts a mechanical shading structure or a grid type dimming structure to realize light regulation, but in practical application, the technical bottleneck is that the traditional grid type dimming structure can realize light angle control, but can easily cause light spot edge dispersion and light spot uniformity reduction while inhibiting glare, and the conventional scattering structure can improve light spot uniformity, but can weaken light effect and reduce anti-dazzle capability, and the two have contradiction that is difficult to be compatible. The main stream products in the market mainly adopt independent modules to respectively realize the functions of diffusion and anti-dazzle, so that the thickness of the system is increased, the light path conversion efficiency is reduced, and the development requirements of light weight, thinness and integration of modern lighting equipment are difficult to meet. It is noted that, although the dimming structure similar to the grid structure in the prior art has the basic light guiding function, the dimming structure has the technical defects of large light efficiency loss (about 35-45%), obvious edge halation and the like in use. The current dimming module needs to solve the technical contradiction of 1) the cooperative improvement of light control precision and light efficiency, 2) the balance of angle control and light uniformity, and 3) the reliability and cost control problems caused by the integration of a multi-layer structure. Aiming at the technical bottleneck, the invention provides the light-adjusting module with an innovative three-layer composite structure, and the performance boundary of the prior art is broken through by the synergistic effect of the scattering layer, the light-adjusting channel and the angle control layer. Disclosure of Invention In order to solve the above-mentioned shortcomings in the prior art, the present invention provides a dimming module with a three-layer composite structure. In order to achieve the technical effects, the invention adopts the following scheme: the dimming module with the three-layer composite structure comprises a scattering layer, a gap layer and an angle control layer which are arranged in a composite mode, wherein the gap layer is clamped between the scattering layer and the angle control layer; The surface of the scattering layer is provided with a plurality of first optical microstructures; The surface of the angle control layer is provided with a plurality of second optical microstructures; the gap layer comprises a plurality of dimming channels for guiding light rays from the scattering layer to the angle control layer, and the refractive index of the inner wall of each dimming channel is 1.2-1.8; the angle of the light in the dimming channel needs to satisfy: Or alternatively Wherein, the alpha angle is the average beam angle of the emergent light source of the scattering layer,The angle is the beam angle of the light incident in the dimming channel after passing through the dimming channel,The angle is the beam angle of the light ray incident in the inner wall of the dimming channel after passing through the dimming channel,Is the distance between the upper ends of two adjacent dimming channels,Is the distance between the lower ends of two adjacent dimming channels, and H is the height of the dimming channel. And it is desirable that the requirements be met, 。 According to the preferable technical scheme, the inner wall material of the dimming channel is one of silica gel, PVC, aluminum foil, PVB glue, PUR glue, UV glue, OCA glue hot melt adhesive or epoxy glue. According to the preferred technical scheme, the cross section of the dimming channel is one of square, hexagonal or round. According to the preferable technical scheme, the thickness of the gap layer is 0.001-1mm, and the duty ratio of the gap layer is 50% -99%. According to the preferred technical scheme, a plurality of dimming channel arrays are distributed. In a preferred technical scheme, the diffusion ions are arranged in the scattering layer. In a preferred embodiment, the first optical microstructure is convex and/or concave on the surface of the scattering layer, and the shape of the first optical microstructure includes one of a pyramid, an ellipsoid or an irregular shape. In a preferred technical scheme, the second optical microstructure is arranged on the surface of the angle control layer in a protruding mode and/or a recessed mode, and the shape of the second optical microstructure comprises one of a pyramid, a lens, a V-shaped groo