Abstract: Glass bodies are decoratively affected by having coatings of dichroic materials applied to an uneven surface, which in turn are coated with an opaque coating that may be protective, absorptive, or reflective. This combination of coatings transmits or reflects different colors of light in patterns that are determined by the unevenness of the coated surface, the design of the dichroic film, the design of the opaque coating, and an angle of view of an observer. Both the color patterns and the colors forming the patterns change with different viewing angles of the coated surface.

Abstract: Glass bodies are decoratively affected by having coatings of dichroic materials applied to an uneven surface. The dichroic materials transmit or reflect different colors of light in patterns that are determined by the unevenness of the coated surface and an angle of view of an observer. Both the color patterns and the colors forming the patterns change with different viewing angles of the coated surface.

Abstract: An ultrasound test object, i.e., a phantom, for the calibration of the imaging fidelity of acoustical imagining equipment comprises a substrate with a surface that is comprised of grooves having at least one reflecting surface with at least one scattering test target disposed at a desired distance from the reflecting surface. The reflecting surface is at an angle to the direction of propagation of beamed acoustical energy where the angle is predetermined for directionally controlled scattering of pulsed acoustical waves away from the surface thereby suppressing destructive interference between waves not impinging on the substrate and substrate-surface-reflected waves, thus increasing the field magnitude of echoed waves, thereby providing a phantom offering high resolution, complexity, and precision. A method for testing the performance of acoustical testing equipment is also taught.

Abstract: A reflector providing directional control of visible and infra-red radiation emanating from a lamp held within the reflector. The reflector includes a first, optical interference coating applied to the interior surface of the dome-shaped portion of the reflector which is operable to transmit infra-red radiation while reflecting visible light. A second coating which is non-transmissive to IR radiation is applied to selected portions of the reflector body, and preferably to the area adjacent the neck portion of the reflector whereby components placed rearwardly of the reflector are protected from IR radiation. Various application techniques are disclosed, and the second coating may be applied in manners allowing for coding of reflectors of different types, as well as creating an aesthetically pleasing effect on surfaces illuminated by the IR radiation transmitted rearwardly of the reflector. Visible light escaping from the neck portion of prior art reflectors is also addressed by the present invention.

Abstract: The invention is directed to a system and method for extending the life of a bluish, greenish, or reddish colored gel, comprising a filter coating situated between a light source and a colored gel, which filter coating has a reflectance band falling in the same wavelength region of the visible light spectrum as the absorption band for the colored gel such that burning or bleaching of the color is prevented or delayed.

Abstract: A method is provided for acid etching or sandblasting decorative designs in the smooth surface of hard substrates such as glass, ceramics, plastics, and marble, granite, or other stones. A dry film photoresist, preferrably a solder mask, is applied to the smooth surface without the addition of heat. The decorvative design is placed on the dry film by exposing the dry film to ultraviolet light through a negative of the design to place the design on the surface of the photoresist. The dry film is then developed to remove a portion of it. The smooth surface is then acid etched or sandblasted, with the portion of the dry film remaining on the smooth surface protecting that portion of the smooth surface from the acid etching or sandblasting process. An apparatus is also provided for applying the dry film photoresist to the substrate.

Abstract: A monomer which would normally be clear and transparent upon polymerization is co-deposited with silver halide particles of extremely small particle size onto transparent glass or plastic by plasma polymerization or glow discharge polymerization. The resultant coated glass or plastic material will exhibit photochromic behavior and may be used in the manufacture of eyeglasses, architectural glass, or glass for automobile windows or windshields.

Abstract: A method is provided for acid etching or sandblasting decorative designs in the smooth surface of hard substrates such as glass, ceramics, plastics, and marble, granite, or other stones. A dry film photoresist, preferably a solder mask, is applied to the smooth surface without the addition of heat. The decorative design is placed on the dry film by exposing the dry film to ultraviolet light through a negative of the design to place the design on the surface of the photoresist. The dry film is then developed to remove a portion of it. The smooth surface is then acid etched or sandblasted, with the portion of the dry film remaining on the smooth surface protecting that portion of the smooth surface from the acid etching or sandblasting process. An apparatus is also provided for applying the dry film photoresist to the substrate.

Abstract: A monomer which would normally be clear and transparent upon polymerization is co-deposited with silver halide particles of extremely small particle size onto transparent glass or plastic by plasma polymerization or glow discharge polymerization. The resultant coated glass or plastic material will exhibit photochromic behavior and may be used in the manufacture of eyeglasses, architectural glass, or glass for automobile windows or windshields.

Abstract: Cubic boron nitride is deposited on a substrate by an activated reactive evaporation method involving heating a substrate in a vacuum, evaporating metal vapors into a zone between the substrate and the metals source, said source consisting of pure boron or boron and a material selected from the group consisting of the elements chromium, nickel, cobalt, and manganese co-evaporated, or an alloy consisting essentially of from 0.1 weight percent to 5.0 weight percent of at least one of the elements chromium, nickel, cobalt, and manganese, the balance being boron, introducing ammonia gas into the zone, and generating an electrical field in the zone in order to ionize the metal vapors and gas atoms in the zone.

Abstract: Cubic boron nitride is deposited on a substrate by an activated reactive evaporation method involving heating a substrate in a vacuum, evaporating metal vapors into a zone between the substrate and the metals source, said source consisting of pure boron, or boron and a material selected from the group consisting of the elements chromium, nickel, cobalt, and manganese co-evaporated, or an alloy consisting essentially of from 0.1 weight percent to 5.0 weight percent of at least one of the elements chromium, nickel, cobalt, and manganese, the balance being boron, or an alloy consisting essentially of at least 60 percent by weight to the balance of boron with from 0.2 to 12 percent by weight of aluminum, and at least 0.