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:
Jul. 27, 1982
Filed:
Jan. 30, 1980
Applicant:
Inventors:
Hendrik Mulder, Delft, NL;
Johannes J Houtkamp, Delft, NL;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 313 94 ;
Abstract
An image intensifier of the proximity-focus type, comprising at least one photocathode and at least one anode screen located opposite to the photocathode, said photocathode and said anode screen being disposed in a hollow body in which a vacuum prevails, while, in use, there is an electrical field between cathode and anode. According to the invention the photocathode surface and the anode screen surface extend substantially parallel to the axis of the hollow body.