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US 10,471,467 B2Granted
Lighting arrangement
AssigneeNorth Inc.
InventorsNicolas Abele, Lucio Kilcher
Life of this patent
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Abstract
A lighting system with a laser light source for radiating light; a wavelength conversion element for receiving the radiated light from the light source and for re-emitting wavelength converted white light; and a reflector element for reflecting the light received from the wavelength conversion element is disclosed. The reflector element comprises a reflective surface and a micro-patterned surface comprising an array of micro-focal elements. Each micro-focal elements is configured to converge or diverge incident light from the wavelength conversion element.
Claims14
A lighting system comprising:
- a laser light source;
- a scanning mirror arranged to rotate around two substantially orthogonal axes, the scanning mirror to receive light radiated by the laser light source and to reflect the received light;
- a wavelength conversion element to receive the light reflected by the scanning mirror and to emit multi-spectral light;
- and
- a reflector element non-coupled to and spatially separate from the wavelength conversion element, the reflector element comprising:
- an array of a plurality of micro-focal elements to receive the multi-spectral light emitted from the wavelength conversion element and to converge or diverge the received multi-spectral light, wherein the array comprises at least one first micro-focal element having a first concave shape and at least one second micro-focal element having a second convex shape;
- and
- a reflective surface to reflect the converged or diverged multi-spectral light towards an exit aperture.
5 more elements
A method, comprising:
- radiating light to a scanning mirror arrangement arranged to be rotatable around two substantially orthogonal axes;
- reflecting the radiated light to a wavelength conversion element;
- re-emitting, from the wavelength conversion element, broad-spectral light;
- converging or diverging, at an array of a plurality of micro-focal elements, the broad-spectral light re-emitted by the wavelength conversion element,
- wherein the array comprises at least one first micro-focal element having a first concave shape and at least one second micro-focal element having a second convex shape;
- and
- reflecting the converged or diverged light towards an exit aperture of a lighting system by a reflector element physically non-coupled to and spatially separate from the wavelength conversion element.
4 more elements
Dependencies are inferred from the claim text.