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:
Jan. 11, 2005
Filed:
Aug. 23, 2002
Applicants:
Peter J. Miller, Newburyport, MA (US);
Randall J. Deary, Littleton, MA (US);
Inventors:
Peter J. Miller, Newburyport, MA (US);
Randall J. Deary, Littleton, MA (US);
Assignee:
Cambridge Research and Instrumentation, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 113 ; G02F 11337 ;
U.S. Cl.
CPC ...
Abstract
Fabry-Perot etalons including a layer of liquid crystal between the reflective surfaces are disclosed. Application of an electric field to the liquid crystal layer changes the effective refractive index of the liquid crystal layer, making the device tunable.