Waveguide Combiner Optical Filters for Mixed-Reality Light Leakage

The waveguide combiner applies different optical properties to different regions: the front surface has high reflectivity for virtual images while the rear surface has high transmissivity for real-world views. Optical filters are selectively positioned at the rear surface to block leaked virtual image light without affecting real-world view transmission, creating local quality differentiation to resolve the contradiction between brightness and energy loss.

The patent converts the harmful effect of light leakage into a beneficial feature by using optical filters that selectively block leaked virtual image light while allowing real-world views to pass through. The leaked light that would otherwise be wasted energy is instead redirected or blocked in a controlled manner, and the filters themselves become useful components that improve both energy efficiency and visual comfort without compromising virtual image brightness.

Optical filters are applied specifically to the rear surface of the waveguide combiner where light leakage occurs, while the front surface maintains its high reflectivity for virtual images. This localized application of different optical properties allows the system to eliminate eye glow without compromising virtual image display capability.

The optical filters convert the harmful eye glow effect into a beneficial feature by selectively blocking leaked light while maintaining transparency for real-world views. The filters transform a social interaction barrier into an imperceptible component that actually improves user comfort and social acceptance.

The waveguide combiner uses localized optical filtering at the rear surface to block leaked virtual image light that would otherwise make the device detectable. This selective application of optical properties maintains mixed-reality viewing capability while reducing the device's visibility to others.

The optical filters convert the harmful effect of increased device detectability into a beneficial feature by blocking leaked light in a way that makes the device imperceptible to others. The filters transform a security vulnerability into a stealth advantage, allowing users to maintain mixed-reality viewing without being easily detected.