Abstract: A partially transparent, partially reflective curved screen is formed with a thin metal layer supported on a transparent supporting layer. A transparent light absorbing dye or other means for optically absorbing visible light is incorporated in the transparent supporting layer. The screen allows an optical image such as from a TV to be transmitted therethrough with reduced ghost effect.

Abstract: The invention discloses a method for separating acid from an acid-sugar hydrolyzate in an electrodialysis apparatus comprising the steps of continuously passing the hydrolyzate through a diluate compartment of the electrodialysis apparatus, continuously passing a carrier fluid through a concentrate compartment of the electrodialysis apparatus, and maintaining a current between the anode-cathode pair of the electrodialysis apparatus that forces the anions and cations of the acid to migrate from the diluate compartment into a concentrate compartment.

Abstract: An incandescent electric lamp includes an envelope with a wall having an inner and an outer curved surfaces. An incandescent filament is located within the envelope. A device is provided to connect the incandescent filament to a source of electrical power to cause it to incandesce. The curved inner surface of the envelope is defined by a plurality of interconnecting, substantially flat chord surfaces interposed to each other at an angle.

Abstract: Identical half-section shells of microscopic size, such as hemispherical shells from which spherical laser fusion targets can be made are capable of mass production by micro fabrication molding techniques. A body (preferably a hollow glass microsphere which is called a glass microballoon) provides a pattern for the hemispherical shells, and is used to produce an original mold section. One or more master molds are formed from this original mold section by replication. Many identical replica molds are made by casting soluble material onto the master mold and removing them therefrom. The replica molds are coated with one or more layers which will form the hemispherical shell wall. The material coating the flat background around the hemispherical cavity is referred to as the flange and is removed to form free standing shells. In order to remove the flange material, the coated replica molds are overcoated with a soluble material which is etched away to the level of the flange.