The proposed device is a semi-transparent screen that allows simultaneous viewing of what is beyond the screen and the images projected onto its surface. It consists of two thin glass plates with reflective elements arranged as microlenses, embedded in a resin. The projector's light is reflected by the elements towards the user's eye, while external light passes through the transparent layers without distortion. The transparency and brightness of the screen can be adjusted by modifying the reflective elements. This technology can use flexible transparent sheets like PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), or PC (polycarbonate) instead of glass.
This innovative screen offers numerous potential applications, both in the field of augmented reality and in the automotive and architectural sectors. Additionally, the use of flexible materials such as PET, PMMA, or PC allows the screen to be adapted to curved or irregular surfaces, further expanding the possibilities of use.
The proposed display allows for the visualization of both static information (such as images, texts, and symbols) and dynamic content (such as videos) without obscuring what is behind the screen. This technology can be applied in various fields, including automotive and industrial vehicles, to project information directly onto the windshield, but also in exhibitions, museums, shops, and outdoor advertising. Its versatility is further highlighted by the ability to use common projectors available on the market. Additionally, the option to use flexible transparent supports based on polymers (such as PET, PMMA, PC) extends its applications to curved systems or those subjected to specific stresses, reducing weight and fragility. This makes the technology suitable for motorcycle dashboards, interactive helmets, and much more.
Italy; Europe