Abstract: An apparatus for sensing microfilms is provided in addition to visible light with a projection lamp for radiating infrared rays which pass through a cold-light mirror to a platform on which a microfilm is disposed. The apparatus is further provided with a projection lens positioned above the microfilm platform. The path of rays is directed from the microfilm platform through the projection lens and then is projected onto an image screen or other sensing surface, for example CCD-device. For adjusting the apparatus for various light spectrum combinations the apparatus is provided with at least one infrared component-reflecting mirror which is displaceable or pivotable to and from the path of illumination rays radiated from the projection lamp.

Abstract: A microfilm reader for enlarged projections of any desired micropicture among a number of such pictures on a microfilm. The microfilm is interleaved between two movable plates. A slidable support for the image forming objective is pressed with a tensioned spring against the upper plate. The slidable support can be connected to a slide lever for effecting its placement in proper position. Two arms of a spring can be employed for mounting the slidable support and for tilting it around an axis essentially parallel to the cover plate.

Abstract: A microfilm reader is provided which comprises two casings. The first casing comprises selection means for selecting a micropicture as well as means providing a projection beam for imaging the positioned micropicture through at least one selected orifice in the first casing. The second casing comprises at least one orifice for receiving the projection beam carrying the micropicture information and projection means for displaying the received micropicture information. The two casings can be attached in dual position and by proper positioning of mirrors the projection beam passes through matched orifices of the two casings. The remaining orifices are covered with covers.