Laser Projection thumbnail
Laser Projection

A 520-nm wavelength laser is used to project a woman’s face onto an LCD screen. The hologram-like image is formed through an optical system composed of four lenses optimized to capture details with high fidelity using a 4 MP digital camera.

—Fabián E. Ávila-Cadena, César Camacho-Bello and Sergio Pérez-Quintero, Universidad Politécnica de Tulancingo, Hidalgo, México