US 11,726,351 B2
Goggle lens with compound curvature for downward field of view enhancement
Will McNeal, Portland, OR (US); Hans Lindauer, Brooklyn, NY (US); Mike Aaskov, Kennebunkport, ME (US); John Ohran, West Linn, OR (US); Eric Thorsell, Portland, OR (US); Matt Capozzi, Bend, OR (US); Nicolas Ramirez, Portland, OR (US); and Scott Layton, Portland, OR (US)
Assigned to Smith Sport Optics, Inc., Portland, OR (US)
Filed by Smith Sport Optics, Inc., Portland, OR (US)
Filed on Nov. 1, 2019, as Appl. No. 16/672,358.
Claims priority of provisional application 62/756,034, filed on Nov. 5, 2018.
Prior Publication US 2020/0142218 A1, May 7, 2020
Int. Cl. G02C 7/06 (2006.01); A61F 9/02 (2006.01)
CPC G02C 7/066 (2013.01) [A61F 9/025 (2013.01); A61F 9/027 (2013.01); A61F 9/029 (2013.01); G02C 7/065 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A goggle comprising:
a goggle frame configured to be worn conformally on a user's face, the goggle frame comprising a flexible face gasket that defines an opening configured to encircle the user's eyes when the goggle is worn; and
a lens assembly coupled to the goggle frame and comprising a lens bracket supporting a unitary lens that covers the opening such that an enclosed space is defined between the lens, the goggle frame, and the user's face, when the goggle is worn, wherein the lens has an upper portion having a substantially constant radius of curvature along a vertical direction, a horizontal direction, or both, and wherein the lens has a lower portion having a variable radius of curvature at least along the vertical direction, wherein the upper portion and the lower portion are separated by a first longitudinal line, wherein along a first meridian of the lens perpendicular to the first longitudinal line, the upper portion has a first constant radius of curvature and along the lower portion has a second variable radius of curvature, and wherein along a second meridian of the lens perpendicular to the first longitudinal line, the upper portion has the first constant radius of curvature and along the lower portion has a third variable radius of curvature different than the second variable radius of curvature, and wherein the radius of curvature of the lens varies along a second longitudinal line parallel to the first longitudinal line in the lower portion.