Lens for eyewear and other headworn supports having improved optics

A lens for use in non-corrective eyewear or headgear in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of one eye of a typical wearer, the lens comprising:

• a lens body comprising:
• a front surface having one of a toric and freeform geometry;
• and
• a rear surface having the other of the toric and freeform geometry, wherein
• a viewing axis extends from the one eye and the center axis at an angle from the center axis away from the typical wearer's nose measured along a horizontal meridian of the rear surface,
• each point along the horizontal meridian of the rear surface is associated with an angle of the viewing axis where the viewing axis intersects the each point along the horizontal meridian of the rear surface,
• a prismatic power of the lens does not exceed approximately 0.33 diopter for every point along the horizontal meridian of the rear surface at angles of the viewing axis from 0 degrees to approximately 30 degrees, and
• a difference between a maximum and minimum prismatic power of the lens for a range of points along the horizontal meridian of the rear surface at angles of the viewing axis from approximately 30 degrees to approximately 40 degrees does not exceed approximately 0.18 diopter.

A lens for use in non-corrective eyewear or headgear in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of one eye of a typical wearer, the lens comprising:

• a lens body comprising:
• a front surface having one of a toric and freeform geometry;
• and
• a rear surface having the other of the toric and freeform geometry, wherein
• a viewing axis extends from the one eye and the center axis at an angle from the center axis away from the typical wearer's nose measured along a horizontal meridian of the rear surface,
• each point along the horizontal meridian of the rear surface is associated with an angle of the viewing axis where the viewing axis intersects the each point along the horizontal meridian of the rear surface,
• a prismatic power of the lens does not exceed approximately 0.33 diopter for every point along the horizontal meridian of the rear surface at angles of the viewing axis from 0 degrees to approximately 30 degrees, and
• a difference between a maximum and minimum prismatic power of the lens for a range of points along the horizontal meridian of the rear surface at angles of the viewing axis from approximately 30 degrees to approximately 50 degrees does not exceed approximately 0.43.

A lens for use in non-corrective eyewear or headgear in combination with a frame to support the lens in a path of a straight ahead line of sight forming a center axis of one eye of a typical wearer, the lens comprising:

• a lens body comprising:
• a front surface;
• and
• a rear surface having a freeform geometry and comprising an inflection region, the inflection region comprising a concave to convex transition of the rear surface, wherein
• a lens thickness is defined between the front surface and the rear surface,
• a viewing axis extends from the one eye and the center axis at an angle from the center axis away from the typical wearer's nose measured along a horizontal meridian of the rear surface,
• each point along the horizontal meridian of the rear surface is associated with an angle of the viewing axis where the viewing axis intersects the each point along the horizontal meridian of the rear surface, and
• a prismatic power at the inflection region matches a prismatic power of a region of the rear surface next to the inflection region.