Addressograph Multigraph Corporation

Am International Incorporated

Skantek Corporation

Thomas A Booth

Frank L Scholten

William Pferd

Joshua Milow

A system for correcting the manufacturing errors and variations in the positional alignment and spacing of optical fibers in the scanning head of an automatic digitizing system. A scan head signature is produced by measuring the actual X and Y position for each optical fiber including the variation of each fiber from its nominal X and Y positions. An X correction circuit and a Y correction circuit use the head signature data stored in a signature correction memory to correct the X and Y positions of the stream of scan line data to thereby provide a true video scan of the document data.

System for correcting errors in the dimensional location of fibers in

Registration is maintained as between an electron beam and that portion of a light-emissive interface selected for visualizing beam-defined characters by providing a discernible indicium on the interface at a location exterior to the selected interface portion and interacting the beam with interface area inclusive of the indicium. Signals are generated by a detector viewing such interface area and information for correction of beam deflection is obtained from the signals.

Method and system for registration in CRT typesetting

In photocomposition, when change in point size is made, rather than change iris opening, a programmable flash intensity provides the required irradiance. Iris setting is made only to compensate for film or paper sensitivity, flash lamp efficiency, and energy storage capacitor variations.

Exposure control system for photocomposition machines

In a photocomposer, a collimated optical system to enable a decollimator and reflective surface to space characters along a composition line, with a variable size determining primary lens and a negative collimating lens, whereby the optical path is greatly foreshortened.

Photocomposer optical system with a negative collimating lens

A photographic compositor having a letter pattern carrying section comprising a plurality of letter pattern carrying discs which are rotatably mounted on a common rotatable shaft at intervals. A dynamic optical system provides a collimated light beam source at a fixed location. A carriage with a sub-optical system decollimates and focuses the beam, transports the beam in an offset path to letter pattern of a disc, and recollimates the beam. The recollimated beam is then projected to a focusing lens and out to a photocomposer apparatus. The collimating system enables the carriage to be mobile and therefore the optical system is disposed to cooperate with one side of a selected disc wherein a beam for illuminating letter patterns carried in a track on a disc is caused to reside between a pair of adjacent letter carrying discs by causing the carriage of the optical system to move into an interspersing position with a selected disc wherein the beam may be passed through a letter pattern and out through the space between a pair of discs of the following stage in the offset path. The optical system and the letter pattern carrying section are mounted for movement of the carriage with respect to the letter pattern carrying section and the relative movement is in a path perpendicular to the axis of the rotatable shaft when the carriage is withdrawn. The perpendicular withdrawal movement of the carriage is carried out to a first limit which separates the carriage from the largest disc carried by the shaft upon which the disc members are mounted. A second limit of the carriage is in the opposite direction but perpendicular to the shaft direction and is moved to a preselected positional relationship to place the optical system in conjunction with a selected disc font track. The carriage is shiftable in the direction of the shaft axis while in said first limit position, whereby the carriage is caused to separate from a particular disc and shift to select another disc and back into a selection position with one track of the disc, without disturbing the optical system which enables the carriage to move by reason of the collimated portions of the optical system optically interconnecting the carriage into the system.

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Flanders, NJ, United States of America

Thomas A Booth