US20240377639
2024-11-14
Physics
G02B27/0172
The wearable pupil-forming display apparatus is designed for augmented reality (AR) applications, utilizing a catadioptric optical system to create a binocular 3D virtual image from 2D displays. The device is intended for use in near-eye displays such as eyeglasses or goggles, allowing users to see both virtual and real-world images simultaneously without obstruction. This technology addresses common issues in AR systems like brightness, image distortion, and limited field of view (FOV).
The apparatus includes several key components: an electroluminescent image generator for creating 2D images, a curved reflective surface that is partially transmissive, a beam splitter to direct light towards the mirror, and an optical image relay system. The relay system uses a prism with input and output surfaces and a folding surface to manage the optical path, ensuring efficient light transmission and high-quality imaging.
The design prioritizes user comfort and device aesthetics, addressing challenges like component size limitations and heat generation from OLED displays. The apparatus aims to maintain a compact form factor, with careful positioning of components to avoid discomfort or awkward appearance. It also considers user-specific variables such as inter-pupil distance (IPD) and visual conditions like macular degeneration.
This AR display system enhances image quality and efficiency compared to traditional pupil expansion systems. It forms distinct exit pupils for each eye, superimposing 2D images onto real-world scenes to create a coherent 3D experience. The design improves brightness and resolution while ensuring minimal visual obstruction, making it suitable for both personal use and social settings.
The wearable display apparatus is adaptable for various user needs, equipped with sensors to gather data related to viewer interaction. This flexibility makes it applicable in vision correction scenarios or environments requiring high visibility under challenging lighting conditions. The system's ergonomic design supports prolonged use without compromising on visual clarity or user comfort.