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:
Aug. 12, 2025
Filed:
Oct. 04, 2022
General Scientific/surgitel, Ann Arbor, MI (US);
Byung J. Chang, Ann Arbro, MI (US);
General Scientific Corporation/Surgitel, Ann Arbor, MI (US);
Abstract
Ergonomic prism loupes provide establish deflection angle less than 45 degrees, more preferably around 40 degrees, to improves visual and postural ergonomics. It has been determined that with such a deflection angle, maximum head tilt is less than 20° for the vast majority of procedural configurations. The prism may be a roof prism. The eyepiece portion may include a singlet and a doublet lenses, and the objective portion may include a triplet lens. The objective portion may also include an optical element that establishes a working distance, and different eyepiece or objective portions may be provided for a range of magnifications. The invention further includes a structure for mounting the loupes on eyeglass frames, such as a through-the-lens (TTL) mounting structure, a front-lens mounting (FLM) structure, or a flip-up mounting structure.