Abstract: A document scanner in which a book is supported by a trough shaped support which is movable up and down in order to place the book in contact with the scanner housing. The housing includes a wedge-shaped portion having at least one window through which a page of the book can be scanned. In addition to being movable into contact with the wedge-shaped housing the book support assembly is rotatable in order to scan the opposite page of the book and is fully adjustable to accommodate books of different sizes and thicknesses. The scanner housing is provided with a lamp to illuminate the page to be scanned and a scanning element which sequentially scans the book or document.

Abstract: A document scanner includes a wedge-shaped scanner housing (16, 18), vertically movable on a main housing (10) to locate an inclined scanned window against a document resting on a trough-like document support (14) beneath the scanner housing. The scanner housing is manually movable up and down for location against and removal from a document to be copied, and counterbalancing means are provided within the main housing to facilitate such vertical housing movement.

Abstract: A device as described for indicating the state of focus of an image of a document which is converted into a video signal by sequentially inspecting the incident light level at points within the image and generating an electrical signal having a parameter which varies with the light level.

Abstract: A document scanner is described for scanning a page of a book comprising a movable housing having at least one flat face containing a window through which light from a document to be copied can pass. A scanner within the housing adapted to scan an image of the document to generate an electrical video signal corresponding to the information carried by the document, a device for supporting a book face upwards so that the book can be moved into contact with the window, and a pivoting joint between the housing and a support therefor to permit rotation of the housing into at least one other position in which the window is unobstructed and light from a remote document can be directed therethrough to form the image to be scanned.

Abstract: A document scanner for scanning a page of a book which includes:1. a movable housing having at least one flat face containing a window through which light from a document to be copied can pass.2. a scanner within the housing adapted to scan an image of the document to generate an electrical video signal corresponding to the information carried by the document,3. means for supporting a book face upwards so that the book can be moved into contact with the window,4. a pivoting joint between the housing and a support therefor to permit rotation of the housing into at least one other position in which the window is unobstructed and light from a remote document can be directed therethrough to form the image to be scanned.