Patents Assigned to Projectron Ltd.
  • Patent number: 5572814
    Abstract: A hand-held microfilm reader comprises an elongate body formed by two parts connected together at one end and separated at the other ends to form a slot. A microfilm sheet can be inserted in the slot with a translucent screen being provided to one side of the slot and a magnifying system to the other side of the slot. An electric light bulb is provided behind the translucent screen to illuminate the screen and the sheet and a clamping device is provided for releasably clamping a sheet against the translucent screen when a required portion of the sheet is in the field of view of the magnifying device.A translucent cover may be provided in the part carrying the screen to allow ambient light to the screen to illuminate a microfilm should the electric light system fail.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: November 12, 1996
    Assignees: Projectron Ltd., Frank Boram, John M. Boram
    Inventors: Frank Boram, John M. Boram