U.S. Philips Corporation

Willem Schouten

Hendrik J De Wit

Lukas Frederik Tiemeijer

Remigius S Van Roemburg

Cornelis M Groeneveld

Optoelectric device having a coupling between a semiconductor diode laser component, such as an amplifier or modulator, and two optical glass fibres. The optoelectronic device has an optoelectronic module comprising a first holder with a semiconductor diode laser component and provided on either side of the component with a second holder comprising a plate with an opening and a lens holder in which a lens is present. The module also comprises a third holder for an optical glass fibre aligned with the component on either side of the component. The second holder comprises a bush which is connected to the plate and within which the lens holder is fastened to the plate, while the bush is provided with at least one opening, near the plate.

Optoelectronic device with a coupling between a semiconductor diode

Color display tube having a display screen with a pattern of phosphor elements. To reduce mislanding errors of the electron beams, particularly in the y-direction, the color display tube is arranged within an external magnetic shield which is constituted by an open arrangement (frame) of bars of a soft-magnetic material. The bars jointly constitute, for example the ribs of a block.

Color display tube having an external magnetic shield

A color display tube is presented having an elongated display screen with a pattern of phosphor dots. In order to render mislanding errors of the electron beams as small as possible, particularly in the y direction, the color display tube has an internal shield which is provided proximate to its gun-sided open end with a structure for deflecting the field lines of the axial component of the earth's magnetic field more to the short sides than to the long sides of the shield. This structure is particularly constituted in that the short sides are provided with edges extending toward the gun, or in that a border strip has been removed from the long sides.

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Eindhoven, Netherlands

Willem Schouten