Abstract:
A single cathode ray tube envelope having a plurality of phosphor screen areas thereon providing a plurality of individual screens contained in a single glass envelope. Multiple beams are provided from a single electron gun construction having a single cathode, a single control grid panel, a first anode panel, and either a deflection yoke or a deflector plate assembly. A number of electron beams are thereby produced corresponding to the number of individual phosphor screens, and the screens may have phosphors of different colors for producing distinctive color images at the different screens, or regular color t.v. images on one or more of the individual screens, without the use of a shadow-mask.
Abstract:
An automatic sedimentation rate recording apparatus wherein an elongated container tube containing a fluid sample is placed in a holder adjacent an elongated record forming strip and a highintensity flashlamp, and a solid state timer circuit times out a selected test period, for example, of 1 hour, activates the flashlamp to produce in the record forming strip an image indicating the level of the sediment in the container tube, and an indicator lamp is activated to signal completion of the test and recording.
Abstract:
An electron gun construction for cathode ray tubes which produces plural beams from a single electron gun having a single cathode and having a control grid and a first anode each of which have at least three beam apertures arranged for example to produce three vertically spaced beams. Focus and accelerating anodes for the plural beams are also provided. In a preferred tri-color example, the phosphor screen is made up of successive vertical sets of color-producing phosphor zones arranged in three, substantially horizontal rows of red, blue and green producing phosphor spaced in vertical succession and scanned by the three beams.