Video Projectors

A projector is an electro-optical device designed to project and enlarge input video or image signals onto surfaces such as screens, walls, or ceilings, creating a large-scale visual display. Its core operation involves a light source system (e.g., LED, laser, or traditional lamp), an imaging chip (utilizing DLP, LCD, or LCOS technology), and an optical lens assembly. Functioning on the principles of photoelectric conversion and optical magnification, it supports multiple input sources (such as HDMI, USB, or wireless transmission). Projectors serve diverse applications including home theater entertainment, business conference presentations, educational classroom instruction, and mobile outdoor entertainment. Primary user segments encompass consumers seeking enhanced home entertainment, corporate professionals requiring efficient presentations, educational institutions for interactive teaching, and travelers or students in need of portable solutions. Categorized by form factor and functionality, key variants include portable models (lightweight, integrated WiFi/Bluetooth), fixed-installation types (for professional AV systems), and smart projectors (with built-in OS and apps). Critical performance parameters are resolution (e.g., 1080p, 4K) and brightness (measured in lumens), addressing a wide range of digital needs.