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US 9,134,547 B2Granted
Eyewear with chroma enhancement
AssigneeOakley, Inc.
InventorsBrock Scott McCabe, Ryan Saylor, Carlos D Reyes
Life of this patent
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Abstract
Some embodiments provide a lens including a lens body and an optical filter configured to attenuate visible light in certain spectral bands. At least some of the spectral bands can include spectral features that tend to substantially increase the colorfulness, clarity, and/or vividness of a scene. In certain embodiments, eyewear incorporates an optical filter that enhances chroma within one or more spectral bands. In some embodiments, a wearer of the eyewear can perceive the increase in chroma when viewing at least certain types of scenes.
Claims49
Eyewear comprising:
- a lens body comprising an optical filter configured to attenuate visible light in a plurality of spectral bands, each of the plurality of spectral bands comprising:
- an absorbance peak with a spectral bandwidth;
- a maximum absorbance;
- a center wavelength located at a midpoint of the spectral bandwidth;
- and
- an integrated absorptance peak area within the spectral bandwidth;
- wherein the spectral bandwidth is equal to the full width of the absorbance peak at 80% of the maximum absorbance of the absorbance peak;
- wherein the optical filter comprises a blue light absorbance peak;
- wherein the center wavelength of the blue light absorbance peak is between about 445 nm and about 480 nm;
- wherein an attenuation factor of the blue light absorbance peak is greater than or equal to about 0.8 and less than 1;
- wherein the attenuation factor of an absorbance peak is obtained by dividing an integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorbance peak;
- and
- wherein the spectral bandwidth of the blue light absorbance peak is at least 2 nm greater than a full width of the blue light absorbance peak at 90% of the maximum absorbance of the blue light absorbance peak.
10 more elements
Eyewear comprising:
- an optical filter;
- wherein the optical filter includes one or more chroma enhancement dyes configured to attenuate visible light in a plurality of spectral bands, each of the plurality of spectral bands comprising:
- an absorbance peak with a spectral bandwidth;
- a maximum absorbance;
- a center wavelength located at a midpoint of the spectral bandwidth;
- and
- an integrated absorptance peak area within the spectral bandwidth;
- wherein the spectral bandwidth is equal to the full width of the absorbance peak at 80% of the maximum absorbance of the absorbance peak;
- wherein at least one of the one or more chroma enhancement dyes has a blue light absorbance peak;
- wherein the center wavelength of the blue light absorbance peak is between about 445 nm and about 485 nm;
- wherein an attenuation factor of the blue light absorbance peak is greater than or equal to about 0.8 and less than 1;
- wherein the attenuation factor of an absorbance peak is obtained by dividing an integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorbance peak;
- and
- wherein the optical filter is configured to increase the average chroma value of uniform intensity light stimuli having a bandwidth of 30 nm transmitted through the optical filter within a spectral range of about 440 nm to about 480 nm as compared to a neutral filter that uniformly attenuates the same average percentage of light as the optical filter within the spectral range of about 440 nm to about 480 nm, when outputs resulting from uniform intensity inputs having a bandwidth of 30 nm and a center wavelength within the spectral range are compared.
11 more elements
A laminate comprising:
- an optical filter configured to attenuate visible light in a plurality of spectral bands, each of the plurality of spectral bands comprising:
- an absorbance peak with a spectral bandwidth;
- a maximum absorbance;
- a center wavelength located at a midpoint of the spectral bandwidth;
- and
- an integrated absorptance peak area within the spectral bandwidth;
- wherein the spectral bandwidth is equal to the full width of the absorbance peak at 80% of the maximum absorbance of the absorbance peak;
- wherein the optical filter comprises a blue light absorbance peak;
- wherein the center wavelength of the blue light absorbance peak is between about 445 nm and about 480 nm;
- wherein an attenuation factor of the blue light absorbance peak is greater than or equal to about 0.8 and less than 1;
- and
- wherein the attenuation factor of an absorbance peak is obtained by dividing an integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorbance peak.
9 more elements
Dependencies are inferred from the claim text.