Material from a layer of migration material spaced apart from at least one surface of, but contacting a softenable layer is caused to imagewise selectively migrate to at least locations in depth in the softenable layer, by (A) subjecting said migration material to an imagewise migration force and changing the resistance of said softenable layer, to migration of migration material or by (B) subjecting said migration material to a migration force and imagewise changing the resistance of said softe...

An X-ray imaging system includes a thin sodium iodide single crystal or matrix of single crystals for converting an X-ray image into a visible image. Preferably an electro-optical amplifier amplifies the detected image and delivers the amplified image to a closed circuit television viewing system.

An imaging system suitable for use with high energy nuclear particles or photons such as gamma radiation and X-radiation. The system provides means for illuminating an object with radiation as well as spatially coding the illuminating radiation or emitted radiation if the object is self-luminous, to provide composite image representing the summation of the shadows from all points of the source of illumination. Spatial modulation is accomplished by a mask having a coded pattern of transparent and...

Method for forming images by providing an electrostatographic imaging member bearing an electrostatic latent image on a recording surface, positioning the recording surface spaced from and facing a development electrode, contacting the recording surface with toner particles whereby at least a portion of the toner particles deposit on the recording surface to form at least a partially imaged recording surface, and maintaining the field strength of the development electrode weak during the initial...

Disclosed is an imaging device having an image pick up tube provided with a color selective stripe filter. Means are provided for parallel light beams in the longitudinal direction of the stripe filter, as a bias light to be applied onto a photo-conversion layer on the image pick up tube through the filter.

A photoelectrophoretic imaging system wherein formation of an insulating surface on an electrode is accomplished by particle migration of a particulate resinous material onto the electrode prior to imaging. The resinous material is preferably suspended in the imaging suspension.

Electrostatic latent images are developed by developer material in a chamber having a curved bottom surface by transmitting to the developer material in contact with the chamber sufficient oscillatory energy to circulate a stream of the developer material in an orbital path in a substantially vertical plane, the oscillatory energy having an axis of oscillation perpendicular to the vertical plane and contacting the upper periphery of the stream of developer material with a surface bearing an elec...

An imaging system wherein a structure comprising a cohesively weak imaging layer sandwiched between a donor sheet and a receiver sheet is employed. The sandwich is placed in an electrical field and exposed to extended imagewise activating electromagnetic radiation. The extended exposure causes the image which conventionally adheres to the receiver sheet to adhere to the donor sheet and the image which conventionally adheres to the donor sheet to adhere to the receiver sheet.

An electrostatographic imaging system of the liquid development type with the space between the development electrode and the imaging surface being maintained substantially constant during development by the repulsive forces of magnetism.

A fiber optic device for nonuniform imaging between two planar surfaces made by taking a pair of cuts through longitudinally spaced portions of a fiber optic bundle, at least one of the cuts intersecting a tapering portion of the bundle and being other than in a plane perpendicular to the bundle axis, and then deforming the length of bundle so cut out to bring at least one of its ends into a changed shape.