Abstract: This disclosure depicts an improved shipping and/or storage container for television cathode ray tubes or funnels. The container has a base, a cap, and preferably one or more intermediate shelves. The base and the cap are separated by a plurality of rigid posts which give stacking strength to the container. The base defines a plurality of cavities configured and sized to snugly receive the faces of a plurality of facedown tubes (or funnels). Each shelf has openings configured and sized to permit the shelf to fit over the face-down tubes (or funnels) and other openings for receiving a plurality of face-up tubes (or funnels). Each shelf, when assembled, rests on the face-down tubes (or funnels) and supports the face-up tubes (or funnels) in space-conserving relationship between the face-down tubes (or funnels). The cap defines cavities configured and sized to snugly receive the faces of the face-up tubes (or funnels).

Abstract: A method of forming electron-transmissive apertures in a color selection mask for use in a color cathode ray tube. The method includes providing an electrically conductive preformed blank having a relatively thin aperture-defining layer and a relatively thick substrate layer. Two photoresist layers are deposited in succession on the aperture-defining layer. The first photoresist layer is caused to have an array of aperture elements, said pattern elements having the desired ultimate mask aperture size. The second photoresist layer is caused to have an array of aperture elements which are superimposed over the array of aperture elements in the first photoresist coating and correspondingly distributed, a predetermined group of the said aperture elements being of a smaller size than the desired ultimate mask aperture size. The shadow mask blank is then etched through, using the array of apertures in the second photoresist coating as an etchant mask.

Abstract: This disclosure depicts a method of forming a pattern of electron-transmissive apertures in a color selection mask for use in a color television cathode ray tube.

Abstract: This disclosure depicts a process for reclaiming from contaminated color cathode ray tube screening waste rare earth oxysulfide phosphors, especially the red-emitting phosphor yttrium oxysulfide. The screening waste from which the phosphor material is to be reclaimed may contain, in addition to the phosphor material contaminants such as hardened photoresist material, blue-emitting and green-emitting zinc sulfide type phosphor materials and graphite. The novel phosphor reclaim process disclosed is characterized by having steps including subjecting the partially purified oxysulfide phosphor material to a wash in dilute nitric, acetic, hydrochloric or citric acid, preferably citric acid, in order to enhance the adherability of the reclaimed phosphor material during subsequent rescreening thereof. The phosphor material is subjected to a wash with sodium tri-polyphosphate to minimize during rescreening of the phosphor material cross-contamination of underlying blue-emitting or green-emitting phosphor materials.

Abstract: Apparatus for use in a lighthouse station for automatically maintaining the output of the light source at a predetermined level comprises a chamber for supporting a cathode ray tube face panel and a source of actinic energy located in the chamber. An adjustable controller is employed for energizing the source. A light translator in the form of a quartz rod is disposed adjacent the energy source for monitoring its output. A light responsive device, coupled to the light translator, derives a control signal representative of the instantaneous energy level of the light source. Finally, means responsive to the control signal serves to actuate the controller to maintain the output of the source at a predetermined level.

Abstract: This disclosure depicts an electronic timepiece having complementary electro-optical and electro-mechanical displays. The electro-mechanical time display comprises a stepping motor driving hour and minute hands to continuously display the hours and minutes of the day, the most used time functions. The electro-optical display is a normally off two-digit LED display which is activated by user command to display at least one additional time-related function having a lower normal use factor than hours or minutes. The complementary electro-optical and electro-mechanical time displays are controlled from a common control means.

Abstract: This disclosure depicts a color cathode ray tube of the shadow mask type, and especially depicts suspension systems for detachably supporting a rectangular, non-self-rigid, torsionally flexible shadow mask on the envelope of a color cathode ray tube. Each suspension system illustrated includes four suspension devices, one at each corner of a faceplate portion of the envelope on a diagonal thereof, for mechanically coupling the shadow mask to the envelope. Each device comprises envelope-mounted means and mask-mounted means for retentively but detachably engaging the envelope-mounted means to cause the mask to assume a fixed position in space relative to the tube of the faceplate. In the preferred embodiment illustrated, the envelope-mounted means and the mask-mounted means mate with a snap-in, self-guiding, self-locating engagement such that the mask may be quickly and precisely mounted on the envelope by a push-click insertion operation.

Abstract: A low cost network for use in a television receiver for receiving a video signal and generating therefrom both a control signal for modulating the scan velocity of a CRT electron beam and a delayed video signal for intensity modulating the CRT electron beam with picture information. The network uses only one delay line for generating the control signal and the delayed video signal. A video signal is applied to an impedance means followed by a delay means coupled to a reflecting termination. The impedance of the impedance means is substantially equal to the characteristic impedance of the delay means. An output terminal from which the control signal is taken is included at a point between the impedance means and the delay means. The delayed video signal is generated by means responsive to the signal received by the reflecting termination from the delay means. The network may also be used to generate preshoot and overshoot peaking components for peaking the delayed video signal.

Abstract: A multiple-channel information translation system includes a Bragg light-sound interaction cell interposed in the path of a spatially coherent input light beam. Carrier generating means generates a plural number greater than two of electrical carriers each having a different RF frequency. The carriers are respectively amplitude modulated by information-bearing input signals to produce a like plural number of amplitude-modulated carrier signals used to drive the Bragg cell. The cell Bragg-diffracts the input beam into a corresponding plural number of primary output light beams respectively amplitude-modulated in accordance with the input signals. The carrier generating means causes the frequencies, or frequencies and relative phase, of the carriers to be such that random, signal-related spurious amplitude modulation of the primary output light beams which might otherwise result from cross-channel interference effects in the cell is suppressed.