Head-worn illuminators and magnifiers with optical rejection coatings to assist medical and dental professionals
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United States of America Patent
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Jun 9, 2015
Grant Date -
Dec 20, 2012
app pub date -
Jun 18, 2012
filing date -
Jun 17, 2011
priority date (Note) -
In Force
status (Latency Note)
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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.
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