Optical component for beam shaping
AssigneeCarl Zeiss SMS GmbH
InventorsLars Erdmann, Alexander Pesch, Arnaud Deparnay
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Abstract
The invention includes an optics array for beam shaping, which uses a micro lens combination, whose polygonal micro lenses are arranged in a level, whereby the geometric arrangement of the individual lenses and their diameters follow a distribution pattern. It is characterized by the fact that the number of corners as well as the length of the lens rims of each of the individual lenses of the micro lens combination is defined by a point distribution (P) of Voronoi points (2), which define a Voronoi Region (VR(p)) which can be described by the following equations for a Voronoi lens (1). z ( r ) = c · r 2 1 + 1 - ( 1 + k ) · c 2 · r 2 + a 4 · r 4 + a 6 · r 6 + …
Claims12
Optics for beam shaping, comprising:
- a micro lens array in which a plurality of polygonal micro lenses are disposed in a surface, each polygonal microlens having corners and a lens rim having a length,
- whereby geometric arrangement of individual polygonal micro lenses and individual polygonal micro lens diameters follow a distribution pattern, wherein a number of the comers and the length of the lens rims of each of the polygonal micro lenses correspond to a Point distribution (P) and each of the individual polygonal micro lenses have a point which is a Voronoi Point, that defines a Voronoi Region (VR(p)), which is defined by the following equation for a Voronoi Lens:
- z
-
- (
- r
- )
- =
- c
- ·
- r
- 2
- 1
- +
- 1
- -
- (
- 1
- +
- k
- )
- ·
- c
- 2
- ·
- r
- 2
- +
- a
- 4
- ·
- r
- 4
- +
- a
- 6
- ·
- r
- 6
- +
- …
- where
- r is a distance between a vertex of the Voronoi lens and a point p of the lens and 0≦r≦dmax
- c=1/R and R is a radius of curvature of the Voronoi lens
- z is a distance based on the vertex, where 0≦z≦z(dmax);
- and
- k is a conical constant;
- and
- an are aspheric coefficients.
Dependencies are inferred from the claim text.