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. 09, 2015
Filed:
Jun. 18, 2012
Byung J. Chang, Ann Arbor, MI (US);
Byung J. Chang, Ann Arbor, MI (US);
General Scientific Corporation, Ann Arbor, MI (US);
Abstract
An improved head-mounted optical illuminator or magnifier of the type worn by a medical or dental professional includes an optical coating applied to one or more optical surfaces associated with the illuminator or magnifier, and wherein the optical coating is a rejection coating operative to blocks wavelengths in the green, blue, violet and/or ultraviolet portions of the electromagnetic spectrum, depending upon the embodiment. Short-wavelength coatings (blue/violet/uv) may be applied to the surface of a lens used in a head-worn illuminator, for example to the beam-forming optics. The head-worn illuminator may be an LED illuminator, xenon illuminator, or other high-intensity source. In the case of the green notch filter coatings, these would typically only be applied to a head-worn magnifier, including flip-up and through-the-lens styles. In all embodiments, the optical coating may be a multilayer dielectric coating, a holographic filter, or utilize other optical filter technology.