US 12,474,600 B2
Sleep-aiding eyewear with improved visibility
Stafford W. Sheehan, Tiverton, RI (US); Zachary R. Stenmark, Sydney (AU); and Jordan D. Stenmark, Sydney (AU)
Assigned to Dreamers Holdings, Inc., Brooklyn, NY (US)
Appl. No. 17/775,950
Filed by Dreamers Holdings, Inc., Brooklyn, NY (US)
PCT Filed Nov. 10, 2020, PCT No. PCT/US2020/059804
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2021/096840, PCT Pub. Date May 20, 2021.
Claims priority of provisional application 63/104,906, filed on Oct. 23, 2020.
Claims priority of provisional application 62/933,521, filed on Nov. 11, 2019.
Prior Publication US 2022/0390769 A1, Dec. 8, 2022
Int. Cl. G02C 7/10 (2006.01); A61F 9/02 (2006.01); G02B 1/02 (2006.01)
CPC G02C 7/104 (2013.01) [A61F 9/022 (2013.01); G02B 1/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical filter, wherein the filter comprises a Bragg grating; the Bragg grating comprises alternating layers of a first material having a first index of refraction and a second material having a second index of refraction, wherein the first index of refraction is higher than the second index of refraction; and the filter reflects at least 80% of light with a wavelength below 560 nm, and transmits at least 80% of light with a wavelength above 570 nm.