Optical component for generating a light effect
An optical component is disclosed including a plurality of layers, each layer comprising a first region in between a second region and a third region, the first region having a lower transmissivity than the second and third regions, wherein the layers are staggered such that the optical component comprises at least one passage defined by partially overlapping regions of higher transmissivity. A luminaire including such an optical component and a 3-D printing method for manufacturing such a component are also disclosed.
1. An optical component having a wall with a first wall surface and a second wall surface, the second wall surface being opposite to the first wall surface in a first direction, the wall comprising a plurality of layers stacked on top of each other in a second direction perpendicular to the first direction,
wherein each layer of the plurality of layers has a first region with a first edge surface and an opposite second edge surface, both extending through the layer in the second direction, the first edge surface being an interface between the first region and a second region, and the second edge surface being an interface between the first region and a third region, the first region having a lower transmissivity than each of the second region and the third region,
wherein each first region has a defined width (W 1 ), and
wherein successive layers are staggered with respect to each other by a distance (D) that is larger than the defined width (W 1 ).
2. The optical component of claim 1 , wherein the optical component comprises an inner volume, and wherein each layer envelopes part of the inner volume.
3. The optical component of claim 2 , wherein each of the first regions, the second regions and the third regions envelope part of the inner volume.
4. The optical component of claim 1 , wherein each layer comprises a first portion in which the second region is proximal to the first wall surface and a second portion in which the first region is proximal to the first wall surface.
5. The optical component of claim 1 , comprising an alternating pattern of first parts including the plurality of layers and further transmissive parts.
6. The optical component of claim 1 , wherein each first region is individually selected from a coloured portion, a reflective portion, a diffuse portion, an emissive portion and a transparent portion having a different refractive index to the second region and the third region.
7. The optical component of claim 6 , wherein the respective first regions are the same.
8. The optical component of claim 1 , wherein different layers are made of different materials and/or have different dimensions.
9. A luminaire comprising the optical component of claim 1 .
10. The luminaire of claim 9 , wherein the optical component comprises an inner volume, the luminaire further comprising a light source positioned inside or outside said inner volume.
11. A method of manufacturing the optical component according to claim 1 , wherein the method comprises the step of 3-D printing the plurality of layers with 3-D printer having an extruder nozzle.
12. The method of claim 11 , wherein said 3-D printing comprises forming an inner volume of the optical component by enveloping each layer around part of the inner volume.
13. The method of claim 12 , wherein said 3-D printing comprises forming each layer such that each layer comprises a first portion in which the second region is proximal to the first wall surface and a second portion in which the first region is proximal to the first wall surface.