Projection Systems

  • Introduction

 It is a device that enlarges and projects the photo on the photo paper or the image on the film onto a screen. It operates through use of various lenses. Photo is placed on a plate. The light passing through the condenser lens falls onto the photo. The beams reflected on the photo pass through the projection lens and fall onto the screen. The light source is usually a powerful electric bulb. Sometimes electric arcs are also used.