See how a self-powered holographic projector uses switchable films and monochromatic radiation
Focused light spot intensity enables accurate incident position estimation in spatial light modulators despite vibration and thermal misalignment.
Per-channel op-amp offset calibration sharpens grey-level voltage accuracy in display drivers, reducing image noise in holographic modulators.
An optical cavity magnifies LC phase delay, enabling thinner layers, tighter pixel pitch, lower crosstalk, and faster switching.
A liquid crystal layer switches beam polarization under external stimuli, enabling one metasurface to generate multiple hologram images in real time.
Multiple monoscopic exposures set at human convergence angles create security holograms with stronger depth and wider viewing directions.
Ground electrodes between pixel rows suppress field leakage, enabling independent ≤1 μm pixel driving and a viewing zone of 30° or more.
Limited SLM refresh rates hinder focusing through changing tissue; a 350 KHz 1D GLV enables continuous wavefront adaptation.
A coarse-to-fine pixel voltage drive aligns liquid crystals quickly while preserving high-bit-depth hologram reconstruction quality.
Rectangular holographic projector pixels are orthogonally matched to the replay field to improve image-pixel resolution.
Measures horizontal and vertical spatial frequency resolving powers at discrete positions to evaluate hologram reconstructed image quality.
A spatial light modulator uses a refraction layer and metal thin film to generate surface plasmons for precise phase modulation.
Dual sound-wave modulators deflect light via diffraction, resolving the trade-off between multi-directional control and device complexity.
Dynamic tiling schemes map input holograms onto spatial light modulator pixels, smoothing optical effects and reducing artefacts.
Fixed converging positions with selective placement maintain constant energy per spot, resolving uneven distribution in multi-point laser machining.
Encoding method extracts real number hologram functions to generate high-quality 3D content.
Acousto-optic modulators dynamically adjust holographic depth to resolve disparities between virtual content and real-world objects as users move.
A birefringent device controls optical axis orientation to modulate coherent light waves in a single layer.
Patterned phase change material layers define in-plane resonance to boost optical property differences between states, enhancing holographic image brightness.
A light modulation device uses a variable diffractive structure to deflect light beams toward observer eye positions.
Modified Gerchberg Saxton algorithm accelerates phase convergence using adaptive motion estimation and optimized gain factors.
A sparse nanophotonic phased array uses a Gaussian-weighted iterative algorithm to redistribute energy across selected light-emitting elements.
Computational phase-only holography replaces fixed optics with dynamic phase modulation, eliminating additional components and reducing manufacturing costs.
A liquid crystal on silicon spatial light modulator integrates pixel mapping circuitry within the silicon backplane to combine hologram data with lens functions.