Light module for emitting light and method for emitting visible and non-visible light
AssigneeFisba AG
InventorsHansruedi Moser, Patrick Spring, Marcel Wäspi
Life of this patent
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Abstract
A light module (1) which comprises preferably at least three laser diodes (2a, 2b, 2c) that emit light in a visible wavelength range, a respective collimating device (3a, 3b, 3c) per laser diode, a beam combination device (4) for combining the emitted light of the individual laser diodes (2a, 2b, 2c), a beam-shaping device (5) for shaping the combined beam, and at least one emitter (6) for generating non-visible light, in particular an IR laser diode. The emitter (6) is arranged in such a way that the emitted non-visible light is not guided through at least one of the beam combination device (4) or the beam-shaping device (5).
Claims32
A light module for emitting light comprising:
- at least one laser diode which emit light in a visible wavelength range,
- one collimating device per laser diode,
- a beam combination device for bringing together the emitted light of the individual laser diodes,
- a beam shaping device, in which a laser beam with an elliptical cross-section is transformed into a beam with a substantially round cross-section, for shaping a merged beam or one beam shaping device per laser diode, and
- at least one emitter for generating non-visible light,
- wherein the emitter is arranged such that the emitted non-visible light is at least one not guided through the beam combination device or not through the beam shaping device.
A method for emitting visible and invisible light with a light module, the method comprising:
- emitting visible light from laser diodes,
- collimating the emitted visible light of the respective laser diodes,
- combining the emitted visible light in a beam combination device,
- shaping the emitted visible light of the respective laser diodes or the combined light in a beam shaping device, in which a laser beam with an elliptical cross-section is transformed into a beam with a substantially round cross-section,
- emitting non-visible light from an emitter,
- delivering the visible and the non-visible light from the light molecule without the non-visible light being guided through at least one of the beam combination device or the beam shaping device.
A method of manufacturing a light module comprising:
- placing at least one laser diode into a diode holder which emit light in a visible wavelength range,
- placing one collimating device in front of each laser diode,
- setting one dichroic mirror per laser diode for combining the visible light emitted the individual laser diodes,
- positioning of a beam shaping device to shape the combined visible light, wherein a laser beam with an elliptical cross-section is transformed into a beam with a substantially round cross-section,
- placing an IR laser diode into a diode holder so that the IR laser diode emits IR light substantially parallel to the laser diode and the IR light is only combined with the combined light of the visible laser diodes after the beam combination device.
Dependencies are inferred from the claim text.