Fresnel lenses with reduced optical artifacts

A system, comprising:

• a light outputting device configured to output a divergent light;
• and
• a lens configured to convert the divergent light incident thereon from a first side of the lens to a collimated light substantially covering a light receiving region located at a second side of the lens, the lens including a plurality of Fresnel structures formed on at least one of a first lens surface or a second lens surface of the lens,
• wherein each Fresnel structure includes a slope facet and a draft facet, and
• wherein the draft facets are configured to deflect the divergent light to a region located at the second side of the lens and outside of the light receiving region.

A system, comprising:

• a light outputting device configured to output a divergent light;
• and
• a lens configured to convert the divergent light incident thereon from a first side of the lens to a collimated light substantially covering a light receiving region located at a second side of the lens, the lens including a plurality of Fresnel structures formed on at least one of a first lens surface or a second lens surface of the lens,
• wherein each Fresnel structure includes a slope facet and a draft facet, and
• wherein the draft facets are configured to deflect the divergent light to at least two of:
• a first region located at the first side of the lens and outside of the light outputting device, a second region located at the second side of the lens and outside of the light receiving region, and an edge of the lens.