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:
Jun. 01, 2010
Filed:
Oct. 10, 2007
Applicant:
Dan O'connell, Wailuku, HI (US);
Inventor:
Dan O'Connell, Wailuku, HI (US);
Assignee:
HNu-Photonics, Wailuku, HI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention encompasses beam expanders and methods of using such beam expanders. A beam expander according to the present invention may advantageously be used with an interferometer. Beam expanders according to the present disclosure contain at least an input and an output lens, with the output lens having a plano-convex arrangement such that the surface of the output lens is optically flat and can be used as the reference surface in a Fizeau interferometer. The beam expander may also encompass a housing, a partially reflective coating and an anti-reflective coating.