Antique Empire Candle Overhead Projector (Langley)

Antique Empire Candle Overhead Projector

An early type of image projector developed in the 17th century. It was commonly used for educational and entertainment purposes. It used a concave mirror in back of a light source to direct as much of the light as possible through a small rectangular sheet of glass--a lantern slide --on which was the painted or photographic image to be projected and onward into a lens at the front of the apparatus. The lens was adjusted to optimally focus the plane of the slide at the distance of the projection screen which could be simply a white wall and it therefore formed an enlarged image of the slide on the screen. The replacement candle on this old projector is a lot cheaper than today s replacement bulb. Much fun to play with especially when teaching children or finding the child in oneself again. The perfect Christmas gift for grandpa. 9 x 4 x 8