Lighting Module With Microporous Back Plate for Acoustic and Optical Performance

The patent employs a composite structure combining a glass fibre-based carrier plate for acoustic dampening with a white pigment layer (such as titanium dioxide) applied to its surface. This composite approach allows the glass fibre plate to provide excellent acoustic absorption while the white pigment layer enhances optical reflectivity to achieve homogeneous light distribution, thereby resolving the contradiction between acoustic performance and optical efficiency.

The patent replaces expensive advanced coatings like sol-gel with a cost-effective white pigment layer (such as titanium dioxide) that can be applied using conventional, simple coating techniques. This substitution maintains high optical reflectivity and homogeneous light distribution while significantly reducing manufacturing costs, making the solution economically viable for large area lighting applications.

The patent divides large area lighting panels into multiple smaller modular units, each containing LED modules mounted on glass fibre-based carrier plates. These modules can be manufactured separately using conventional techniques and then assembled into larger panel configurations. This segmentation maintains optical homogeneity through proper module arrangement while dramatically improving ease of manufacture, handling, and installation.