Microfilm projection apparatus

Claim 1

In a reproduction system having a drum with a photosensitive surface supported on a drum shaft which is rotatable in a frame, an exposure station adjacent the photosensitive drum at which a light image of information to be reproduced is exposed onto the surface of the drum to produce an image thereof, and means to rotate the drum shaft to bring successive portions of the drum surface through the exposure station, apparatus for projecting microfilm information onto the photosensitive surface of the drum comprising: a. a rotatable transparent cylinder adapted to transmit illumination therethrough and supported by a cylinder shaft having a centerline coincident with that of the drum shaft; b. means to connect the cylinder shaft to the drum shaft so that the cylinder and drum rotate together; c. support means on the cylinder adapted to support the strip of microfilm at a gap from the surface of the cylinder; d. illumination means adjacent the cylinder on the side of the centerlines of the cylinder and drum shafts opposite the exposure station adapted to direct light through the cylinder; e. a system of reflectors to reflect the light which passes through the cylinder to the exposure station; f. means to position the microfilm strip on the supporting means between the support means and system of reflectors; and g. control means to connect the cylinder shaft and drum shaft during projection of the microfilm so that the cylinder and drum rotate together thereby attaining synchronization between the movement of the microfilm and drum surface.