The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1982
Filed:
Oct. 31, 1980
Timothy E Benner, Lancaster, PA (US);
RCA Corporation, New York, NY (US);
Abstract
A pick-up tube includes a generally cylindrical envelope having a faceplate at one end thereof and a cathode in the other end. A photoconductive target electrode is adjacent to the faceplate and a mesh assembly is disposed in spaced relation adjacent to the target electrode, between the target electrode and the cathode. The mesh assembly comprises a mesh electrode disposed between a frusto-conically shaped mesh support ring and a bow-shaped mesh damping ring. The mesh damping ring is fixedly attached at a plurality of points around its outer periphery to the mesh electrode and the mesh support ring. The inner periphery of the mesh damping ring is formed into a plurality of arcuately shaped regions extending therearound. Each of the arcuately shaped regions is interconnected by a portion of the damping ring which is in contact with the mesh electrode. The annular region between the inner periphery and the outer periphery of the bow-shaped damping ring and the axially extending region between the damping ring and the mesh electrode forms a vibration damping chamber having a plurality of entrances formed by the arcuately shaped regions of the damping ring.