Importance

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Abstract

A lens to redirect light, having an angular distribution centered around a left-right symmetry plane (LRSP), from a light source. The lens includes an incident face, facing the light source, which includes an incident corner, which divides the incident face into incident inner and outer zones and is concave, forming an obtuse angle in air. The lens also includes an opposite exiting face, which similarly includes an exiting corner, which similarly divides the exiting face. Each ray striking the incident inner zone transmits through the lens, striking the exiting inner zone. Each ray striking the incident outer zone transmits through the lens, striking the exiting outer zone. Each ray striking the incident face, transmits through the lens, strikes the exiting face, and refracts out of the lens, has initial and final propagation angles with respect to the LRSP. The final propagation angle is greater than the initial propagation angle.

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First Claim