An imaging device which responds to incident thermal or acoustic signals, consists of a layer of electrically poled plastics material, such as polyvinyladene fluoride, on a semiconductor substrate. The plastics material enables an electric charge to be generated within the semiconductor, and the device is read by transferring the charges in `packets` to an output point.

A finely divided particulate toner composition is provided comprising a colorant and an amorphous, low-melting aromatic polyester wherein the polyester contains within the polymer chain at least about 30 mole percent of at least one divalent radical selected from the group consisting of: A. an asymmetrical arylene radical represented by the formula: ##STR1## wherein [Ar] is a divalent arylene radical containing from 6 to about 18 carbon atoms, R is selected from the group of radicals consisting ...

An imaging method which is comprised of a spatially varying imagewise output intensity for a corresponding imaging input. An imaging member comprising between two electrodes a photoconductor in contact with an about 1 to about 6 micron thick layer of nematic liquid crystalline material, which in the absence of an electrical field is in the homogeneous texture, and having negative dielectric anisotropy is utilized. A d.c. voltage above the parallel variable grating mode threshold for the nematic ...

A composition responsive to magnetic fields and comprising a ferrofluid and metal flakes. The metal flakes align with the ferrofluid in response to magnetic lines of force and along the magnetic lines of force. Excellent contrast is provided between portions of the composition wherein the metal flakes are seen along edges or ends and portions of the composition wherein the broad surface area of the flakes are presented to view.

An energy imaging system providing high resolution at the center of the field of view and reduced resolution as a function of the distance away from the center.

A non-impact printing apparatus which employs xerographic techniques to develop a latent image on a transparent photoreceptor and transfer it therefrom to a receiving medium.

The invention discloses techniques suited for extracting image from detected image. First device is a CCD imager having two horizontal CCDs, driven separately, arranged in the vertical direction along vertical CCDs thereof. Further, it has initialize means for releasing all charges in the outer horizontal CCD at once in response to first external signal. First apparatus comprises first device and controller for producing horizontal drive pulses, the number of pulses for the inner horizontal CCD ...

An imaging system in which images are formed by image-wise exposing a layer containing a chromogenic material and a photosensitive composition in which at least the photosensitive composition is encapsulated in a layer of pressure rupturable capsules. Exposure and capsule rupture renders the chromogenic material image-wise accessible to the developer for a patterned image forming reaction.

An imaging array provides a plurality of distinguishable bitmap images and comprises an array of sensor cells capable of sensing radiation. The cells are connected in a manner to form distinguishable bitmap images through a pattern of correspondence among the cells. Each bitmap image formed comprises a combination of one or more cells indicative of detecting an image pixel within a field of array cells that have been nonindicative of such detection. The pattern of correspondence may be one of in...

Apparatus is described for scanning a scene in bands of lines and reconstructing the scene in visible light. Use is made of a prism having mirrors which subtend a sequence of various tilt angles with an axis of rotation. According to the invention, all but one of the mirrors are used for scanning and reconstruction. To achieve this, the angular spacing between the scanning and reconstruction locations around the prism is an integral multiple of the angular spacing between adjacent mirrors, which...