1. An optical system, comprising:at least one 2×2 LED array forming a node consisting of four different color LEDs: LED1 (G), LED2 (R), LED3 (B), LED4 (W) and
at least one respective light-directing housing forming an optic having a base end and a light-emitting end, in which the node is disposed in the base end,
wherein the optic is characterized by a shape having four different focal points (F1, F2, F3, F4), and by comprising a spline (S1) and a hyperbola conic (H1) as profile sections,
wherein each of the LED1, LED2, LED3, LED4 is disposed at a respective focal point of both the spline (S1) and the hyperbola conic (H1).