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:
Feb. 13, 2001
Filed:
Apr. 16, 1999
Applicant:
Inventor:
Balbir Kumar, Wembley, GB;
Assignee:
Marconi Electronic Systems Limited, Middlesex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02 ;
U.S. Cl.
CPC ...
G01B 9/02 ;
Abstract
An interferometer comprises a non-uniform beam splitter (,) which splits an incoming beam (,) of energy into two beams (,). The two beams (,) are taken from parts of the incoming beam (,) which overlap. The two beams (,) are fed spacially separated energy feeds (,) and then fed to a comparator to produce sum and difference channels (,). The sum and difference channels (,) are guided to a means for detecting a difference in phase (,) between the sum and difference channels (,).