Back to results
US 2023/0238767 A1Published application
Laser-based integrated light source
AssigneeKYOCERA SLD Laser, Inc.
InventorsSten Heikman, Terry Towe, Sudeep Khanal
Life of this patent
Estimating the term…
Abstract
A laser-based light source includes a material arranged on a package base adjacent to a laser diode chip and an optical element coupled to the material. The optical element is aligned to receive electromagnetic radiation from the laser diode chip. The optical element includes a wavelength conversion material and is configured to receive at least a portion of the electromagnetic radiation emitted by the laser diode chip. A reflective material surrounds sides of the optical element.
Claims24
A laser-based light source, comprising:
- a package base;
- a laser diode chip coupled to the package base, the laser diode chip configured to output a laser beam of electromagnetic radiation from an output facet;
- the laser diode chip configured to emit the electromagnetic radiation at a first wavelength;
- a material coupled to the package base and arranged on the package base adjacent to the laser diode chip, the material having a reflective surface;
- an optical element coupled directly to a top surface of the material, wherein a groove extends between a portion of the material and a portion of the optical element, the groove aligned with the laser diode chip to receive the electromagnetic radiation from the laser diode chip and the material configured to direct at least a portion of the electromagnetic radiation in the groove into the optical element, the optical element including a wavelength conversion material configured to convert at least a fraction of the electromagnetic radiation in the laser beam with a first wavelength to a second wavelength that is longer than the first wavelength;
- and
- a reflective material surrounding sides of the optical element, the reflective material configured to reflect portions of the electromagnetic radiation incident on the sides of the optical element, wherein the optical element is configured to emit a light from a top surface, the light including a first portion having the first wavelength and a second portion having the second wavelength.
4 more elements
A laser-based light source, comprising:
- a package base;
- a laser diode chip coupled to the package base, the laser diode chip configured to output a laser beam of electromagnetic radiation from an output facet;
- the laser diode chip configured to emit the electromagnetic radiation at a first wavelength;
- a material coupled to the package base and arranged on the package base adjacent to the laser diode chip, the material having a reflective surface;
- an optical element coupled directly to a top surface of the material;
- a light guide aligned with the output facet of the laser diode chip on one end and aligned with the optical element on another end, the light guide configured and arranged to guide at least a portion of the electromagnetic radiation from the laser diode chip to the optical element, wherein the optical element includes a wavelength conversion material and is configured to receive at least a portion of the electromagnetic radiation emitted into the optical element, the wavelength conversion material being configured to convert at least a fraction of the electromagnetic radiation in the laser beam with a first wavelength to a second wavelength that is longer than the first wavelength;
- and
- a reflective material surrounding sides of the optical element, the reflective material configured to reflect portions of the electromagnetic radiation incident on the sides of the optical element, wherein the optical element is configured to emit a light from a top surface, the light including a first portion having the first wavelength and a second portion having the second wavelength.
5 more elements
Dependencies are inferred from the claim text.