A 3D projector is a device that displays three-dimensional images or videos, creating an immersive viewing experience. It works by projecting two slightly different images simultaneously, one for each eye, which the brain combines to perceive depth. These projectors are commonly used in cinemas, home theaters, and educational settings. To enjoy the full effect of a 3D projector, viewers typically wear special 3D glasses that filter the images for each eye. This technology enhances movies, video games, and presentations, making them more engaging and lifelike. Many modern 3D projectors also support various input sources, including Blu-ray players and gaming consoles.