Method and device for generating a visible image on a projection surface
AssigneeRobert Bosch GmbH
InventorsFrank Fischer, Gael Pilard
Life of this patent
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Abstract
A method is described for generating a visible image on a projection surface, in the course of which visible light is emitted from a first laser resonator, the visible light is deflected in the direction of the projection surface with the aid of a deflection element, in particular a micromirror, in order to generate the image, and a light spot of visible light is generated on the deflection element, and invisible light is emitted from a second laser resonator, and a light ring is generated on the deflection element from the invisible light, which enlarges the light spot.
Claims21
A method for generating a visible image on a projection surface, comprising:
- emitting visible light from a first laser resonator;
- deflecting the visible light in a direction of the projection surface with the aid of a deflection element in order to generate the image;
- generating a light spot of the visible light on the deflection element;
- emitting invisible light from a second laser resonator;
- and
- generating a light ring from the invisible light on the deflection element, the deflection element enlarging the light spot.
A device for generating a visible image on a projection surface, comprising:
- a first laser resonator for emitting visible laser light;
- a deflection element for deflecting the visible laser light in a direction of the projection surface in order to generate the image, wherein the first laser resonator is aligned in such a way that a light spot is able to be generated on the deflection element from the visible light;
- and
- a second laser resonator for emitting invisible light, wherein a light ring is able to be generated from the invisible light on the deflection element, and wherein the deflection element enlarges the light spot.
Dependencies are inferred from the claim text.