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.

Date of Patent:
Jan. 06, 2026

Filed:

Dec. 01, 2020
Applicant:

Metrex Research, Llc, Brea, CA (US);

Inventors:

Thomas R. Lindsey, Lodi, WI (US);

Matthew Christopher Oren, Madison, WI (US);

Ramesh Janardhanam, Pardeeville, WI (US);

Assignee:

Metrex Research, LLC, Brea, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 23/00 (2006.01); G02B 7/02 (2021.01); G02B 25/00 (2006.01); G02C 3/04 (2006.01); G02C 7/08 (2006.01);
U.S. Cl.
CPC ...
G02C 7/086 (2013.01); G02B 25/004 (2013.01); G02C 3/04 (2013.01); G02C 7/088 (2013.01);
Abstract

Rotational alignment apparatus and methods for interchangeable loupe telescope(s) are provided. Some embodiments include an indexing ring including a projection. The ring is fixed to the telescope upon rotational alignment of the telescope. The alignment may involve use of a laser and test fixture. The projection mates with a corresponding indexing notch of a loupe anchoring device. Loupes may comprise one or more anchor assemblies, and one or more interchangeable telescope assemblies. The interchangeable telescope assemblies are held to the anchor assemblies by magnetic attraction between one or more magnets and/or one or more magnetic components affixed to corresponding surfaces of the corresponding assemblies. Mating of the projection with the notch ensures appropriate relative rotational alignment of the assemblies.


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