Concave sensor and emitter arrays with integral lens

A light trajectory segmenting device comprising,

• a first lens having a first surface and a second surface,
• a first element selected from the group consisting of, a light detector, a light producer, and a fiber optic,
• a second element selected from the group consisting of, a light detector, a light producer, and a fiber optic,
• wherein said first lens produces a first focal point and said first lens produces a second focal point and wherein said first and second focal points comprise points on a focal curve produced by said first lens and,
• wherein said focal curve is not flat and is adjacent to said first surface of said lens,
• wherein said first element is positioned at said first focal point and said second element is positioned at said second focal point,
• and wherein light passes through said lens in a sequence selected from the group consisting of,
• a) light is emitted from said first element then passes through said first surface and then through said second surface and into a first predetermined segment of the background beyond the second surface and light is emitted from said second element then passes through said first surface and then through said second surface and into a second predetermined segment of the background beyond the second surface,
• b) light from a third predetermine segment of the background passes through said second surface and then through said first surface and is then received by said first element and light from a fourth predetermine segment of the background passes through said second surface and then through said first surface and is then received by said second element, and
• c) light is emitted from said first element then passes through said first surface and then through said second surface and into a first predetermined segment of the background beyond the second surface and light from the fourth predetermine segment of the background passes through said second surface and then through said first surface and is then received by said second element.