US PATENT SUBCLASS 315 / 5.34
.~.~.~.~ Focusing and/or concentrating the ray

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
3  DF  .~ Combined cathode ray tube and circuit element structure {2}
4  DF  .~.~ Inductor or distributed parameter-type inductive structure {2}
5  DF  .~.~.~ Ray passes in or through a hollow distributed parameter device {15}
5.34.~.~.~.~ Focusing and/or concentrating the ray {1}
5.35  DF  .~.~.~.~.~> By magnetic field

DEFINITION

Classification: 315/5.34

(under subclass 5) Subject matter wherein the cathode-ray tube is provided with means for focusing and/or concentrating the cathode-ray.

(1) Note. Concentrating or focusing the cathode-ray is used in this definition to mean either to reduce the cross section area of the cathode-ray across its width or to bring the ray to a focus; that is, the ray is either converged toward a point, or is diverged as if it had originated at a point.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.24+, for a hollow distributed parameter device wherein the

entire cross section of the ray passing through or in is substantially uniformly deflected in one direction.

5.41, for hollow distributed parameter devices wherein the ray passing through or in is accelerated or decelerated uniformly over its cross sectional area.

14+, for cathode-ray tube circuits generally with plural concentrating, accelerating, and/or decelerating stages. 382, for cathode-ray tube circuits generally including means for focusing or concentrating the ray.