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Eyewear with variable optical characteristics

  • US 10,073,282 B2
  • Filed: 05/12/2017
  • Issued: 09/11/2018
  • Est. Priority Date: 11/13/2014
  • Status: Active Grant
First Claim
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1. Eyewear comprising:

  • a lens comprising an optical filter, the optical filter comprising;

    a static attenuation filter comprising;

    an absorbance peak having a spectral bandwidth and a maximum absorbance;

    a center wavelength located at a midpoint of the spectral bandwidth; and

    an attenuation factor obtained by dividing an integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorbance peak,wherein the spectral bandwidth is equal to the full width of the absorbance peak at 90% of the maximum absorbance of the absorbance peak,wherein the attenuation factor of the absorbance peak is between 0.8 and 1.0, andwherein the center wavelength is in a spectral range from 440 nm to 510 nm; and

    a user-controlled and/or sensor-controlled variable attenuation filter, the variable attenuation filter configured to switch among a plurality of states comprising a faded state and a darkened state based on a signal provided by a user and/or based on input from one or more than one sensors, wherein a change in a luminous transmittance of the variable attenuation filter as a result of switching between the faded state and the darkened state is greater than or equal to 10%.

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