Hyperchromatic 3D Imaging with Angular Resolution

The patent segments the illumination into multiple discrete angular directions using an angular spatial light modulator. Each micromirror element directs light at a specific angle, creating distinct beam paths that correspond to different viewing directions. This segmentation enables the system to generate multiple viewable images from different angles simultaneously, expanding the field of view while maintaining brightness control for each direction.

The patent adds angular dimension to the traditional wavelength-based hyperchromatic imaging. By incorporating spatial light modulators that control both wavelength and emission angle, the system transforms from a 2D wavelength-multiplexed display into a 3D system with angular resolution. This dimensional expansion allows observers to move laterally and perceive different views of the same 3D object, fundamentally improving field of view and viewing flexibility.

The patent implements dynamic control of light emission angles through spatial light modulators that can be programmed in real-time. The system dynamically adjusts which angular directions receive illumination and from which object facets the light originates. This dynamic angular multiplexing enables the display to adapt to observer position, providing stable 3D perception without fatigue while simultaneously delivering high angular resolution through precise beam steering control.

The patent changes multiple parameters simultaneously - wavelength, emission angle, and spatial position - to achieve both eye-fatigue reduction and high angular resolution. By independently controlling these parameters through coordinated wavelength selection and angular spatial modulation, the system can optimize for comfort (maintaining vergence-accommodation alignment) while also maximizing angular resolution through precise directional control of multiple beams.

The patent makes each angular beam serve multiple functions: it provides high-brightness illumination in a specific direction while simultaneously representing a distinct viewing angle for multi-view functionality. The angular spatial light modulator ensures that narrow diffusion angles concentrate light for brightness, while the coordinated activation of multiple angular channels collectively covers a wide field of view. Each beam is universally utilized for both illumination efficiency and angular multiplexing.

The patent employs periodic scanning or sequential activation of different angular beams to create the perception of wide field of view. By rapidly switching between multiple narrow-angle beams directed at different spatial locations, the system maintains high brightness during each beam's active period while collectively providing comprehensive angular coverage. This periodic angular multiplexing allows narrow diffusion angles to coexist with expanded field of view through time-division or angle-division strategies.