Abstract: An imaging method involves a substrate having a coating which undergoes a photochemical conversion upon being irradiated to yield only products whose vapor pressure under the operative temperature is higher than that of the coating. In this way as a result of the selective vaporization of the coating the desired image is obtained. The new method has wide applications such as photography, production of microfilms, electrophotographic document duplication, production of master prints for offset printing, etc.

Abstract: A method of real-time color masking is disclosed wherein pairs of color filters are inserted at specific locations in the optical paths of an electro-optical image multiplication system to thereby produce a modulated radiation pattern representative of the product of the reflectance of the positive of one color component and the negative of other color components of the original.

Abstract: 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 softenable layer to migration of migration material.

Abstract: A holographic recording process uses a thermoplastic photosensitive member in which charging on the member and exposing the same to light having holographic information are carried out simultaneously, and an unevenness image corresponding to the information is ultimately formed on the member through a heating and a cooling step. The charging rate, charging-exposing time interval, light intensity and other factors are chosen to assure a high quality recording and hence a favorable image reproduction. In particular, the charging rate is chosen from those which lie in a region of characteristic curves above the line corresponding to 7 dB S/N ratio, the characteristic curves representing the relationship between the S/N ratio of the reproduced holographic image and the charging rate with parameters of the light intensity and the charging-exposing time interval. Further, if 15 dB S/N ratio is used as the limiting line, more than 30 times repeated use of the thermoplastic member is possible.

Abstract: A color image reproduction system wherein there are recorded in superimposition on an imaging member a plurality of images respectively corresponding to the color content of different colors of an original image. Each recorded image is in the form of a surface deformation phase grating which is at a different angular orientation from the phase grating(s) of the other image(s). In operation, the imaging member is sequentially exposed to an original image through spatial light modulating means with illumination of appropriate color at least two times, in each instance employing illumination of a different color and positioning the spatial light modulating means at a different angular orientation. In a preferred embodiment three exposures of the imaging member are made using red, blue, and green light and there is provided a full color reproduction of a full color original image.

Abstract: Camera and imaging processing apparatus for producing rippled message images in frame areas of specular surfaced photoplastic film having a conductive substrate below an upper heat-softenable and image rippleable emulsion layer. Images are formed by image patterned electrostatic charge and heat deformation, and are erased at higher temperatures for re-recording. A film support includes a lateral platen having an opening to permit contact of the back of the film with a moveable heatable metallic block to effect conduction heat softening. The conductive substrate of the film is held at ground potential, and a charging apparatus interposed between the film and an objective lens, through which the image to be recorded is projected, imposes a large electrostatic charge differential on the platen to cause the film to be snugged to the platen. The charging apparatus includes a housing which defines an optical aperture.

Abstract: An imaging member comprising an overlayer of material preferably photosensitive, on a softenable, electrostatically deformable layer is imaged by frost or relief wrinkling the deformable layer. In a preferred mode, where the overlayer is photosensitive, wrinkling is caused by uniformly electrostatically charging the member, exposing said member to an imagewise pattern of radiation actinic to said overlayer of photosensitive material and softening the softenable, electrostatically deformable layer to cause it to wrinkle thereby effecting the overlayer in a variety of ways to produce a variety of imaged members.

Abstract: There is disclosed an imaging system for forming a plurality of images on the same surface, at least one of which is permanent and one of which is erasable. The imaging system includes an electro-optic imaging member which has a "built-in" master image.

Abstract: A method is set forth for increasing the sensitivity and speed of a deformation imaging system. A lenticular lens array is interpositioned between the deformation imaging member and the imaging lens to thereby focus the radiation into a sharp relatively high intensity dot or line pattern.

Abstract: A method is set forth for extending the dynamic range of imagewise exposure systems by transmitting the electromagnetic radiation image through a lenticular lens array and then to a photosensitive surface so that the image at the photosensitive surface is imperfect.

Abstract: A method is set forth for extending the dynamic range of imagewise exposure systems by transmitting the electromagnetic radiation image through two angularly displaced cylindrical lens arrays and then to a photosensitive surface so that the image at the photosensitive surface is imperfect.

Abstract: A method is set forth for increasing the sensitivity and speed of a deformation imaging system. Two angularly displaced lenticular lens arrays are interpositioned between the imaging member and the imaging lens to thereby focus the radiation into a sharp relatively high intensity dot pattern.

Abstract: An imaging system wherein an imaging member comprising a layer of softenable substantially electrically insulating material containing a dispersion of randomly oriented electrically photosensitive orientation particles is imaged by: (A) applying a uniform electric field across said member, (B) imagewise exposing said member to activating electromagnetic radiation, and (C) developing said member by decreasing the resistance of said softenable layer to reorientation of said orientation particles sufficiently to allow imagewise reorientation of said orientation particles.

Abstract: Images are formed with imaging members comprising one or more migration layers and a softenable layer which may be a circulation layer. An electrical latent image is created on the member with electrostatic charge having a density sufficient to cause migration of the marking material from the migration layer through the migration layer -- softenable layer interface and into the softenable layer. When the migration layer and softenable layer comprise materials sufficiently dissimilar so as to retard or prevent penetration, the softenable layer is a circulation layer, the circulation of which enables penetration of the interface by marking material. In a multiple migration layer member, the migrated marking particles have their relative positions inverted.

Abstract: A method for reversing the sense of an input image which employs an electro-optic image recorder and novel imaging technique. An unscreened electro-optic image recorder is sequentially exposed to a grating pattern and then to a reading image. The grating exposure produces large surface deformations on the recorder and the bright areas of the imagewise exposure reduce and/or remove the deformations.

Abstract: An imaging method based upon visible light induced changes in a photochromic imaging layer containing a dispersion of at least one of the following compounds: ##SPC1##Where a, b, c and d are independently selected from the group consisting of hydrogen, halogen, NO.sub.2, NH.sub.2, lower alkyl, phenyl, phenoxy, lower alkoxy, carboxy, hydroxyl, lower alkyl esters and aryl esters,In an organic film forming binder.

Abstract: A method of and apparatus for reading out information disposed as a surface deformation such as a thermoplastic deformation pattern is disclosed in accordance with the teachings of the present invention. A coherent light beam is projected to the surface deformation pattern and one of the first order components of the diffraction pattern received from the deformation pattern is imaged onto a surface. At the surface, the first order component is mixed with a further coherent light beam to form an interference pattern comprised of image modulated sinusoidal interference fringes. The interference pattern has an intensity that varies as a linear function of the amplitude of the deformation pattern. In a preferred embodiment thereof, the first order component of the diffraction pattern is imaged to the surface by an imaging lens optically positioned out of optical communication with the zero order component of the diffraction pattern.

Abstract: A color image reproduction system wherein there are recorded at different angular orientations on a deformation imaging member at least two images corresponding respectively to the color content of at least two different colors of an original multicolor image. Readout illumination provided by an extended light source is converted to a plurality of point sources and deflected to the imaged member by a member comprising a transparent substrate carrying a plurality of mirrored areas. The information- modulated illumination is then reflected to provide a reproduction of the original image at an output image plane.