Freeform

With the Freeform beam type, elements are shaped by specifying the rectangular area where the light should be sent in.

  • Orientation: concave or convex.

    A concave surface is curved inwards.

    A convex surface is curved outwards.

    Note: If X start > X end or Y start > Y end, a concave freeform element becomes convex and a convex freeform element becomes concave respectively on X or Y axis.
    Convex parameter influence Concave parameter influence
  • X start: Left angular boundary in the target.
  • X end: Right angular boundary in the target.
  • Y start: Bottom angular boundary in the target.
  • Y end: Top angular boundary in the target.

  • X spread and Y spread: Ratio driving the beam spread inside the specification rectangle along X and Y Target axes.

    The spread options better respect the beam specification but tend to cause gaps between facets.

    0% < Ratio < 100% 100% 100% < Ratio < 200%
    Light distribution inside the specification rectangle tends to concentrate toward the center. Light distribution inside the specification rectangle tends to be uniform. Light distribution inside the specification rectangle tends to concentrate toward the edges.