|Inventor||Unknown 17th century|
Ten years after the invention of photography, Lantern slides were introduced in 1849 by which transparent images on glass that could be projected. These slides were large (3 ½” x 4”) and fragile. This new technology expanded the use of photography, making photographic images available to a larger audience for education and entertainment.
The magic lantern is not only a direct ancestor of the motion picture projector, but it could be used to project moving images, which was achieved by the use of various types of mechanical slides.