Eyewear with variable optical characteristics
First Claim
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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Accused Products
Abstract
Embodiments disclosed herein include eyewear that provides controlled variable light attenuation and color enhancement based on an input received from a user, a sensor and/or a signal from a control circuit. In some embodiments, the eyewear includes an optical filter system with two or more defined filter states that are adapted to improve color vision in different environments. The optical filter system can be incorporated into a lens having any desired curvature, including, for example, cylindrical, spherical or toroidal. The lens can include one or more functional components. Examples of functional components include color enhancement filters, chroma enhancement filters, a laser attenuation filter, electrochromic filters, photoelectrochromic filters, variable attenuation filters, anti-reflection coatings, interference stacks, hard coatings, flash mirrors, anti-static coatings, anti-fog coatings, other functional layers, or a combination of functional layers.
158 Citations
37 Claims
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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, and wherein 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%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Eyewear comprising:
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an optical filter that can switch between a first filter state and a second filter state based on a signal received from an electric power supply operatively connected to a user-controlled or a sensor-controlled interface, wherein a shift in luminous transmittance between the first and second filter states is greater than or equal to about 10% wherein in the first filter state, the optical filter comprises a first absorbance peak with a maximum optical density greater than about 0.5 at a wavelength in at least one of a first spectral region between about 440 nm and about 510 nm or a second spectral region between about 630 nm and about 670 nm the first absorbance peak having a spectral bandwidth equal to the full width at 80% of the maximum optical density, and wherein in the second filter state, the optical filter comprises a second absorbance peak with a maximum optical density less than about 3.0 at a wavelength in at least one of a first spectral region between about 440 nm and about 510 nm or a second spectral region between about 630 nm and about 670 nm the second absorbance peak having a spectral bandwidth equal to the full width at 80% of the maximum optical density. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification