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:
Apr. 01, 1980
Filed:
Jun. 07, 1978
Applicant:
Inventors:
Alfred Month, Lancaster, PA (US);
Timothy E Benner, Rohrerstown, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 10 ; 313371 ; 313372 ; 313478 ;
Abstract
A vacuum envelope contains a photoconductive target at one end and a tubular anode electrode having light scattering properties. Light is uniformly reflected onto the target by the anode electrode from a light source mounted on the other end of the tube, outside the evacuated envelope. This uniform illumination tends to reduce build-up and decay lags at low level operating conditions. The light source is removably secured to the tube on a ceramic board incorporating an electric circuit connected to the light source for adjusting and controlling the bias light intensity.