MODULAR PRESCRIPTION AUGMENTED REALITY DISPLAY

Smart overview of the Invention

A modular augmented reality (AR) display system integrates prescription eyewear, allowing users to utilize their corrective lenses with AR functionality. The system features a removable display that projects images into the edge of the prescription lens, which acts as a waveguide. This setup enables internal reflection within the lens, directing images to the wearer via an embedded image combiner. To enhance user comfort, a wearable belt pouch containing a battery and support electronics is included, reducing the weight burden on the eyewear itself.

Background

Augmented reality technology superimposes graphical elements onto real-world images, often through handheld devices or eyeglass-like displays. However, integrating AR with prescription eyewear presents challenges, such as added bulkiness or compromised vision quality for users with corrective needs. Given that a significant portion of the population requires vision correction, developing an efficient AR display that accommodates prescription lenses is crucial for widespread usability.

Technical Details

The AR display system described includes prescription lenses integrated into a detachable frame. Users can separate the AR components from the lens-frame assembly to use it as regular prescription eyewear. The electronic components attach via magnets or clips and include OLED displays that project images into the lens edge. A support pack with a battery and computer system connects wirelessly to deliver display information, minimizing head-mounted weight and enhancing comfort during extended usage.

Optical Design

The optical design leverages the prescription lens as a waveguide, integrating a free-form image combiner to deliver virtual images alongside real-world scenes. This design accommodates diverse user needs by offering high-resolution, large field-of-view capabilities while maintaining vision correction. Custom ergonomic designs are achieved using 3D facial scanning, ensuring compatibility with various facial structures and prescriptions.

User Experience

The AR display positions lenses close to the face to optimize eye relief and eye box dimensions. The lens features distinct regions for vision correction and image combination, utilizing semi-reflective surfaces to blend virtual and real-world images effectively. The design allows users to adjust virtual image positioning manually or electronically, providing flexibility in viewing experiences tailored to individual preferences and prescriptions.