![]() The focus of the image can also be adjusted by moving the mirror or the stage up or down. The brightness of the projected image can be adjusted by adjusting the intensity of the light source or by using a dimmer switch. ![]() The light passes through the sheet or slide and is then reflected off a mirror, which projects the image onto a surface. Overhead projectors work by shining a bright light through a transparent sheet or slide placed on the projector’s stage. Hybrid projectors: These can display transparency sheets and slides, making them versatile and convenient for various applications.Slide projectors: These projectors are designed to display images or text printed on slides, typically made of cardboard or plastic.Transparency projectors: These are designed to display images or text printed on transparent sheets, such as acetate or film.There are several different types of overhead projectors available, including: Overhead projectors were commonly used in classrooms and offices, but they have largely been replaced by newer technology such as LCD and LED projectors. The light passes through the sheet or slide and is then reflected off a mirror, which projects the image onto the surface. It works by shining a bright light through a transparent sheet or slide placed on the projector’s stage. An overhead projector is a device used to display images or text on a surface, such as a wall or a screen.
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