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CEA-Leti Develops AR Retinal Projection Technology

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GRENOBLE, France, Feb. 11, 2019 — CEA-Leti, a French research institute for electronics and information technologies, has developed a novel retinal-projection concept for augmented reality (AR) uses based on a combination of integrated optics and holography. The lens-free optical system uses disruptive technologies to overcome the limitations of existing AR glasses such as limited field-of-view and bulky optical systems. In typical AR glasses, images are transmitted close to the eyes by a microdisplay that includes an optical system and an optical combiner. The microdisplays create a small near-to-eye image, which is...Read full article

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    Published: February 2019
    Glossary
    augmented reality
    Augmented reality (AR) is a technology that integrates digital information, typically in the form of computer-generated graphics, images, or data, with the real-world environment in real-time. AR enhances the user's perception of the physical world by overlaying or combining digital content onto the user's view of the real world, often through devices like smartphones, tablets, smart glasses, or specialized AR headsets. Key features and principles of augmented reality: Real-time...
    holography
    Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and diffraction of light. Unlike conventional photography, which records only the intensity of light, holography records both the intensity and phase information of light waves scattered from an object. This allows the faithful reproduction of the object's three-dimensional structure, including its depth, shape, and texture. The process of holography typically involves the...
    microdisplay
    A microdisplay is a miniature electronic display technology that is designed to project visual information onto a small screen. Unlike traditional displays, microdisplays are typically very compact and often used in applications where size, weight, and power consumption are critical factors. These displays can be based on various technologies, including liquid crystal display (LCD), organic light-emitting diode (OLED), digital light processing (DLP), and others. Key characteristics and...
    Businessresearch & developmentCEA-Letiaugmented realityAROpticsRetinal ProjectionholographyDisplaysmicrodisplayImagingEurope

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