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. 07, 2021
Filed:
Dec. 20, 2019
Mitutoyo Corporation, Kanagawa-ken, JP;
Joseph Daniel Tobiason, Bothell, WA (US);
Mitutoyo Corporation, Kanagawa-ken, JP;
Abstract
A tunable acoustic gradient (TAG) lens includes a lens casing in which a controllable acoustic wave generating element is arranged and that surrounds a casing cavity in which an operational volume of a refractive fluid is contained. The lens casing includes a first case end portion comprising a window mounted along an optical path, and a second case end portion comprising a mirror mounted along the optical path. The TAG lens is configured to enable light to pass through the window of the TAG lens to enter the TAG lens and make a first pass through the operational volume of the refractive fluid and be reflected by the mirror of the TAG lens and make a second pass back through the operational volume of the refractive fluid and pass back out through the window of the TAG lens to exit the TAG lens and continue along the optical path.