U.S. Philips Corporation

Dolby Laboratories Licensing Corporation

Gary E Thomas

Lorne Arthur Whitehead

Gregory John Ward

Helge Seetzen

Louis D Silverstein

Willem G Opheij

Gijsbertus A Spierings

Jan Visser

Vincent Kwong

Jacobus E Crombeen

Arie Huijser

Denise M Krol

A display comprises a backlight comprising a plurality of individually-controllable light emitters, a light modulator comprising a plurality of individually-controllable elements, and, a retro-reflective optical layer positioned between the backlight and the light modulator. The retro-reflective optical layer is configured to pass light incident thereon at an angle with respect to a normal to the retro-reflective optical layer of less than a threshold angle &#x3c6;, and reflect light incident thereon at an angle with respect to a normal to the retro-reflective optical layer of greater than &#x3c6; in a direction opposite and generally parallel to an incoming direction of incident light.

Retroreflective optical collimation layer and display devices incorporating same

Apparatus for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of substantially concentric data storage tracks thereon, the card also including at least one microelectronic component which stores further information. Such component is connected to connection points on the surface of the card. Data is read from the tracks of the memory unit by optical scanning during rotation of the card about the axis of symmetry of the memory unit, and information is transferred between the microelectronic component and the data processing unit by an information transfer unit which is coupled to the connection points on the card and to the data processing unit.

Memory card comprising an optical memory disc and microelectronic memory

The glass composition in accordance with the invention is characterized by the absence of alkali metal oxides and by the presence of at least 10% by weight of barium oxide. The glass composition in accordance with the invention has favorable working properties (melting temperature below 1500.degree. C., working range in excess of 200 Celsius degrees, it is very corrosion resistant (also in a strong electric field), it is resistant to metal vapors including mercury vapor, it does not attack a phosphor and it is not subject to blackening. The glass composition in accordance with the invention is extremely suitable for use in fluorescent lamps (TL-, SL- and PL-lamps) and in projection-television face plates.

Glass composition suitable for use in a fluorescent lamp and in a

Such a system comprises in an envelope 1 a flat cathode 2 from the material to be sputtered and a substantially circular anode situated coaxially with respect to said cathode. Behind the cathode, magnetic means 13 are provided to generate at least one closed tunnel of field lines 14 over a part of the cathode surface (a so-called electron trap). Between the anode 3 and the edge 8 of the cathode is present according to the invention a coaxial, substantially cylindrical auxiliary electrode 15. From the center of the cathode a rod-shaped auxiliary electrode 16 moreover extends axially. Said auxiliary electrodes 15 and 16 modify the electric field in such a manner that the electrons which are not captured in the tunnel of magnetic field lines are directed substantially towards the anode 3. The distance from the rod-shaped electrode 16 to the substrate 7 must be chosen to be comparatively small. By using the invention the substrate is less heated and not so much damaged by electron bombardment.

Magnetron cathode sputtering system

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Eindhoven, Netherlands

Gary E Thomas