Patent ID: 8693101

Claim:
A lens sheet presenting a first surface and a second surface spaced from the first surface by a distance defining a lens sheet thickness, the lens sheet comprising: a first lens array formed in the first surface, the first lens array including a first plurality of lenses, wherein each lens of the first plurality of lenses has a first lens height measured as a distance extending from a lens base to a lens peak, a first lens density, a first lens direction, and a first lens focal length; a second lens array formed in the first surface, the second lens array including a second plurality of lenses, wherein each lens of the second plurality of lenses has a second lens height measured as a distance extending from a lens base to a lens peak, a second lens density, a second lens direction, and a second lens focal length, wherein at least one of the second lens height, second lens density, second lens direction, and second lens focal length is different than the first lens height, first lens density, first lens direction, and first lens focal length; and at least one planar portion defined on the first surface, wherein the first and second lens heights are equal to or less than the lens sheet thickness, wherein the lens peak of the first and second lens arrays is flush with or below the at least one planar portion, and wherein at least one of the first and second lens arrays is entirely bordered by the at least one planar portion.