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:
Sep. 06, 1977
Filed:
May. 03, 1976
Applicant:
Inventor:
Russell Warren Dreyfus, Cross River, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 331 / ;
Abstract
An electron beam pumped gas laser includes an evacuated cavity adapted to house a lasing gas and an electron beam launching means (such as a field emission diode). Means are provided to insert a lasing gas into the cavity so as to produce a traveling density discontinuity. The diode is energized prior to the time the traveling density discontinuity reaches it so as to launch an electron beam under substantially evacuated conditions. The principles of the invention can also be applied to gaseous electron beam transport.