Overhead Projector Diagram - Educational Presentation Equipment #3755786 (License: Personal Use)

This vector illustration depicts a classic overhead projector featuring a square glass stage with concentric grid lines for alignment, a built-in lamp and Fresnel lens assembly, and an articulated projection arm ending in a mirror and projection lens. The base unit includes control buttons, a focus knob, and ventilation grilles. The design emphasizes clarity and functional anatomy for educational or technical documentation.

Used on educational technology websites, museum exhibits on vintage AV equipment, or instructional guides for retro classroom tools; targets educators, historians, and tech enthusiasts seeking visual reference or nostalgic context.