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Conventional AR-compatible smart glass modules reflect each of the three primary colors of light (RGB) from laser elements onto a lens and mirror, which are then projected as a single beam of light to display an image. Called a space-optics module, this type requires multiple components—a drawback resulting in larger size.
To solve this problem, TDK focused on new Planar Waveguide Technology*3 that neither uses a lens nor mirror in order to achieve significant reduction in module size. Planar Waveguide Technology—developed by NTT, a company known for its advanced optical telecommunications technologies—merges RGB lights through a planar pathway (waveguide). Combining this technology with TDK’s high-precision manufacturing techniques enabled the final module to be reduced to one-tenth the typical size of a space-optics module. This also enabled images to be displayed in full color depth, with a maximum of approximately 16.2 million colors. High-quality images will further enhance the quality of AR experiences.
Laser beams emitted from the new module are visualized onto a MEMS mirror, then reflected off a lens and projected directly onto the eye’s retina. Unlike how one sees real objects, images projected directly onto the retina will always be sharp, without the need to adjust focus. When used in AR glasses, which layers images over the view of an environment, all elements stay in focus, making it possible to provide a more realistic and higher-quality AR experience.
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Conventional AR-compatible smart glass modules reflect each of the three primary colors of light (RGB) from laser elements onto a lens and mirror, which are then projected as a single beam of light to display an image. Called a space-optics module, this type requires multiple components—a drawback resulting in larger size.
To solve this problem, TDK focused on new Planar Waveguide Technology*3 that neither uses a lens nor mirror in order to achieve significant reduction in module size. Planar Waveguide Technology—developed by NTT, a company known for its advanced optical telecommunications technologies—merges RGB lights through a planar pathway (waveguide). Combining this technology with TDK’s high-precision manufacturing techniques enabled the final module to be reduced to one-tenth the typical size of a space-optics module. This also enabled images to be displayed in full color depth, with a maximum of approximately 16.2 million colors. High-quality images will further enhance the quality of AR experiences.
Laser beams emitted from the new module are visualized onto a MEMS mirror, then reflected off a lens and projected directly onto the eye’s retina. Unlike how one sees real objects, images projected directly onto the retina will always be sharp, without the need to adjust focus. When used in AR glasses, which layers images over the view of an environment, all elements stay in focus, making it possible to provide a more realistic and higher-quality AR experience.
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