Lighting device having a 3D printed biconvex cylindrical lens array
An illumination device includes at least one light source and at least one optical component formed by a stack of at least two biconvex cylinder lenses, each lens having an optical axis perpendicular to a stacking direction of the optical component. The optical component is manufactured using a 3D printing process using fused deposition modeling.
1. A light transmissive optical component that is 3D printed using fused deposition modeling, the optical component comprising a stack of two or more layers, wherein the two or more layers are made of materials having different indices of refraction, and wherein each layer is a biconvex cylinder lens having an optical axis perpendicular to a stacking direction of the stack.
2. The optical component according to claim 1 , wherein the stack is curved in the stacking direction.
3. The optical component according to claim 1 , wherein a plurality of the at least two layers have different aspect ratios.
4. The optical component according to claim 1 , wherein at least one layer of the at least two layers comprises at least one of a light scattering material, a light absorbing material and a luminescent material.
5. A lighting device comprising:
at least one light source; and
at least one optical component according to claim 1 ,
wherein the at least one optical component is arranged to receive light emitted by the at least one light source.
6. A method for producing a light transmissive optical component, the method comprising:
3D printing a stack of at least two layers, wherein the at least two layers are made of materials having different indices of refraction, wherein each layer is a biconvex cylinder lens having an optical axis perpendicular to a stacking direction of the stack, and wherein the stack is 3D printed using fused deposition modeling.
7. The method according to claim 6 , wherein the stack is 3D printed such that the stack is curved in the stacking direction.
8. The method according to claim 6 further comprising selecting printing processing conditions such that at least one layer of the at least two layers has a desired aspect ratio between 1 and 5.
9. The method according to claim 6 further comprising selecting printing processing conditions such that a plurality of the at least two layers have different aspect ratios.
10. The method according to claim 6 further comprising selecting printing processing conditions such that at least one biconvex cylinder lens has a desired radius of curvature between about 0.06 mm and 14.93 mm.
11. The method according to claim 6 , wherein at least one layer of the least two layers comprises at least one of a light scattering material, a light absorbing material and a luminescent material.