Air Ionization Holographic Display Using Split-Delay Laser Beams

The patent divides the single high-power pulse laser beam into multiple sub-beams using a beam splitter. Each sub-beam carries a portion of the total energy, allowing multiple pixels to be formed simultaneously without exceeding the damage threshold of individual optical components. This segmentation enables high pixel count while maintaining component reliability.

The patent uses pulsed laser operation with specific duty cycles and repetition rates. By controlling the temporal characteristics of the laser pulses and coordinating with the spatial light modulator, the system achieves high pixel throughput through periodic action rather than continuous high-power operation, preventing thermal damage to optical components.

Instead of using a single lens to focus one high-power beam, the patent segments the beam into multiple sub-beams that can be simultaneously focused at multiple focal points. This approach maintains sufficient power density at each focal point for air ionization while enabling parallel processing across multiple pixels, thereby increasing the number of focal points.

The patent combines multiple lower-power sub-beams into a multi-focal-point configuration. By merging the functionality of multiple beams through a spatial light modulator and appropriate optical routing, the system achieves the effect of multiple focal points without requiring a single excessively high-power beam, thus resolving the contradiction between power density and number of focal points.

The patent segments the imaging task into multiple parallel sub-beams, each contributing to a portion of the overall picture region. This allows the system to achieve large picture coverage through parallel processing of multiple lower-power beams rather than requiring a single high-power beam, thus increasing picture region size without proportionally increasing pulse output power requirements.

The patent transitions from a single-beam sequential scanning approach to a multi-beam parallel approach, effectively adding a spatial dimension to the beam configuration. By distributing the imaging task across multiple beams in parallel, the system achieves larger picture regions without the exponential power increase that would be required for a single-beam approach.