Flute

Flute lenses are shaped by specifying the geometrical angles between tangents of the support and of the optical surface.

By adjusting the flutes curvature, you can drive the angular spread of the beam.

You can drive the flute horizontal spread by using vertical flutes and reciprocally.

• Start angle: Angle between the vector tangent to the support and the vector tangent to the Flute.

• End angle: Angle between the vector tangent to the support and the vector tangent to the Flute.

• Orientation: the lenses can be defined as concave or convex.

  
  Note:

  • Flutes can be made of several parts when the support has holes in it or an irregular shape.
  • In some cases, stripes (usually the most external stripes of a group) can present a curvature inversion.