Abstract: A system and method for producing photographic-like output. In the method, an image is formed from image forming agent(s) on a specially coated substrate, after which the combination is fused to preferably form a uniform glossy finish on the substrate. A preferred application is in an electrostatographic process, comprising a system comprising (a) toner comprising a resin component having a glass transition temperature T.sub.gT ; and (b) a coated substrate comprising a coating having a glass transition temperature T.sub.gC, where the resin component has a characteristic chemical compatibility with the coating.

Abstract: A process for producing a light diffusing sheet material, and materials made therefrom. A dispersion of light scattering optically clear particles in an optically clear matrix during mixing of the constituent components of the diffuser in the liquid phase and then forming a film or sheet by, e.g., extrusion or casting, from which a screen suitable for displaying images projected thereupon may be constructed. The respective light dispersing and matrix components are chosen by their respective viscosities, interfacial surface energies, and refractive index differential. In an embodiment, it has been found that when the viscosity ratio of first (matrix) optically clear material to second (light dispersing) optically clear is between 0.05 and 10, the first optically clear material disperses or breaks the second optically clear material up into particles of a desired diameter during mixing or mastication of the two optically clear materials while in the fluid phase.

Abstract: A developer roll for use in electrophotographic copying machines and printers. The roll has a coating which is electrically conductive. Also disclosed are the materials comprising the roll and its coating, and a process for formulating the materials and for applying them to the surface of the roll by powder-coating.

Abstract: The present invention comprises a planar fluorescent solar concentrator having a circular band portion within said concentrator toward which incident solar radiation is redirected. Optically coupled to said circular band portion is an optical means comprising an axially symmetrical body of light transmitting material having a circular band at one end for the receipt therein of radially directed electromagnetic radiation, said optical means including a body portion, having a coating on the exterior surfaces thereof and a generally circular second end. Light radially directed in said circular band at said first end is internally reflected in said body portion and directed toward said second end, whereby the light leaving that circular second end is distributed substantially uniformly over the entire area thereof.

Abstract: A system is provided for the collection of electromagnetic radiation and the transmission of that radiation to a point of utilization in the form of light. Basically, the system employs a first solar concentrator for the collection and concentration of solar radiation. Optically coupled to the first solar concentrator is at least one additional solar concentrator for further concentrating the collected solar radiation for efficient coupling with a light pipe. Thus, the light pipe directs the collected and concentrated light to a point of utilization. Preferably, the solar concentrators are planar fluorescent solar concentrators having different fluorescent materials in each concentrator.