Eyewear and lenses therefor
View Patent ↗The invention relates to eyewear and lenses for controlling and/or blocking the absorption of particular bandwidths of light that can impact the physiology of the wearer. The eyewear lens is adapted to selectively permit the relatively greatest percentage of a light within a wavelength range of between about 400 and 490 nanometers. The eyewear lens selectively permits the passage of light of the given wavelength range over one or more subregions of the eyewear lens. The one or more subregions cover in total at most 25-50% of the lens. The peak transmission level within the range between about 400 and 490 nanometers is at least about 70% and the passage of light outside of the range between about 400 and 490 nanometers is less than about 70%.
1. An eyewear lens adapted with one or more subregions of the eyewear lens having a greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens within a wavelength range of between about 400 and 490 nanometers, the one or more subregions of the eyewear lens arranged to direct light to a mood-sensitive portion of an eye of a wearer, and
wherein the eyewear lens is adapted with a portion distinct from the one or more subregions of the eyewear lens, said portion having a greatest percentage transmissivity level of visible light outside of the wavelength range of between about 400 and 490 nanometers.
2. The eyewear lens of claim 1 wherein the one or more subregions of the eyewear lens are adapted with a greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens at a peak wavelength of about 470 nanometers.
3. The eyewear lens of claim 1 wherein the one or more subregions of the eyewear lens comprise a bandpass filter adapted to provide a greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens within a wavelength range between about 400 and 490 nanometers.
4. The eyewear lens of claim 1 wherein the one or more subregions of the eyewear lens are limited to subregions about a frame edge of the eyewear lens.
5. The eyewear lens of claim 4 wherein the one or more subregions are limited to at least one or more of a leftmost portion of a left side of the eyewear lens, a rightmost portion of a right side of the eyewear lens, and a topside portion of the eyewear lens.
6. The eyewear lens of claim 5 wherein the one or more subregions of the eyewear lens cover in total at most 25% of the eyewear lens.
7. The eyewear lens of claim 5 wherein the one or more subregions of the eyewear lens cover in total at most 50% of the eyewear lens.
8. The eyewear lens of claim 1 wherein the eyewear lens is polarized.
9. The eyewear lens of claim 1 wherein the greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens within the wavelength range between about 400 and 490 nanometers is at least about 70% and wherein the one or more subregions of the eyewear lens are adapted with a greatest percentage transmissivity level of visible light outside of the wavelength range between about 400 and 490 nanometers of less than about 70%.
10. The eyewear lens of claim 9 wherein the greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens within the wavelength range between about 400 and 490 nanometers is at least about 80%.
11. The eyewear lens of claim 9 wherein the greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens of visible light outside of the wavelength range between about 400 and 490 nanometers is less than about 50%.
12. The eyewear lens of claim 9 wherein the greatest percentage transmissivity level of visible light through the one or more subregions of the eyewear lens of visible light outside of the wavelength range between about 400 and 490 nanometers is less than about 50% of the greatest percentage peak transmissivity level of the passage of visible light through the one or more subregions of the eyewear lens within the wavelength range between about 400 and 490 nanometers.
13. The eyewear lens of claim 1 wherein the eyewear lens is adapted with a greatest percentage transmissivity level of light through the eyewear lens within the wavelength range of about 380 nm and less than about 380 nm is about 0%.
14. The eyewear lens of claim 1 further comprising a fluorescent material adapted to increase an output of light of a wavelength between 400 and 490 nanometers from the eyewear lens to a wearer of the eyewear lens.
15. The eyewear lens of claim 1 wherein the one or more subregions of the eyewear lens are adapted with a greatest percentage transmissivity level of sunlight that is within a wavelength range of between about 400 and 490 nanometers.
16. The eyewear lens of claim 1 wherein said portion distinct from the one or more subregions of the eyewear lens is adapted with a greatest percentage transmissivity level of visible light of greater than about 490 nanometers.
17. The eyewear lens of claim 1 wherein said portion distinct from the one or more subregions of the eyewear lens is adapted with a greatest percentage transmissivity level of visible light of about 650 nanometers.
18. The eyewear lens of claim 1 wherein the one or more subregions of the eyewear lens are adapted to provide at least 200 lux of luminance of light within the range of 400 and 490 nanometers when used in sunlight.