An imaging member comprising a substrate, at least partially transparent to ultrasonic radiation, with a thin layer of liquid thereon, the layer preferably of a particular preferred thickness, is used for the detection of the interference pattern resulting from the interference of two phase correlated beams of ultrasonic energy, one beam typically being a reference beam and the other an object modulated beam. The free surface of the thin liquid layer is deformed by the interference pattern to fo...

Method and apparatus for improving image density, contrast and quality and photographic speed in an electrophoretic imaging system utilizing a particulate suspension for forming the image. The method and apparatus stress a layer of the electrophoretic suspension of particles in a carrier on an electrode during imaging by applying a high frequency oscillation, preferably ultrasonic, across the imaging suspension.

The specification discloses optical systems for forming aberrated images of objects, and for forming true images of the objects from the aberrated images, using light filters in the path of image-forming light. Filters are shown located in a Fourier transform plane, and in the principal plane of an image-forming lens system.

A composite recording medium comprises a photoconductive layer, a plurality of interdigitated first and second electrodes in electrical contact with the photoconductive layer, and an electrically conductive magnetic recording layer in electrical contact with the photoconductive layer. Methods and apparatus for magnetically recording an image with the assistance of this composite recording medium are also disclosed.

An imaging member comprising a layer of particulate photoconductive material dispersed in an organic resinous binder, said photoconductive material comprising trigonal selenium containing a mixture of an alkali metal selenite and an alkali metal carbonate. This layer can be the charge generation layer of an imaging member also having a charge transport layer in contact therewith.

A composite recording medium comprises a photoconductive layer, a plurality of interdigitated first and second electrodes in electrical contact with the photoconductive layer, and a magnetic recording layer in heat-transfer relationship with the photoconductive layer. Methods and apparatus for magnetically recording an image with the assistance of this composite recording medium are also disclosed.

A photographic system for exposing a photoreceptor to a light image of an object and including a plurality of light filters, each having a predetermined light-transmission density different from that of the others, for differentially attenuating the light in contiguous sections of the light image, and a transparent element having one surface formed with a plurality of adjacent lenticules, each lenticule focusing the differentially attenuated light image sections onto contiguous segments of the p...

An imaging device for flash imaging, through an imaging mask at an imaging film plane, a dry-process imaging film having a layer of an energy dispersible image forming material on a surface thereof. The device comprises electromagnetic energy collecting means which is associated with a source of electromagnetic energy. The energy collecting means includes an energy transmitting body which directs, collimates and shapes the electromagnetic energy emitted by the energy source. The energy collectin...

An imaging device includes a semiconductor body and a array of photosensitive elements arranged in rows and columns at a first portion of the body. A plurality of charge-transfer lines interdigitated with the columns of the array are provided for transfering storage charge carriers from the array to a charge-transfer shift register at a second portion of the semi-conductor body. Each of the transfer lines includes an elongate resistor electrode which has connections for applying a potential diff...

An electrically insulating web is charged on a first side with an electrostatic charge of one polarity and charged on a second side with an electrostatic charge of a second polarity. The first side of the web is brought into contact with a photoconductive layer and the layer is then exposed to a light pattern. The second side of the web is subjected to ions having a polarity of charge opposite to the polarity of charge on the second side. The resulting electrostatic latent image formed on the se...