Patent ID: 11862940
Assignee: KYOCERA SLD LASER, INC.
Field: Optics (Instruments)
Classification: CPC H  F  G | IPC F  H

Claim 14:
15. An apparatus for remotely delivering white light, the apparatus comprising:
at least one laser diode device;
a package member with electrical feedthroughs configured to couple power from a driver to the at least one laser diode device; the package member comprising a support member, the at least one laser diode device configured to the support member and driven by the driver to emit a beam of laser electromagnetic radiation characterized by a first wavelength ranging from 395 nm to 490 nm;
a waveguide assembly having a first end section coupled to the package member to receive the laser electromagnetic radiation and a waveguide transport member to deliver the laser electromagnetic radiation through a length to exit a second end section with a propagation direction, a beam diameter, and a divergence;
a phosphor member disposed in a head member and configured with a surface to receive the laser electromagnetic radiation exited from the second end section; the phosphor member providing a wavelength conversion of at least a fraction of the laser electromagnetic radiation of the first wavelength to a phosphor emission of a second wavelength, wherein the second wavelength is longer than the first wavelength, and the phosphor member is configured with a mechanical fixture provided in the head member to support the phosphor member and the second end section of the waveguide assembly with an angle of incidence in a range from 5 degrees to 90 degrees between the primary propagation direction of the laser electromagnetic radiation and a direction parallel to the surface of the phosphor member and to form an excitation spot, having a dimension of 25 μm to 5 mm, of the incident laser electromagnetic radiation on the surface of the phosphor member, thereby generating a substantially white light emission characterized by a mixture of the laser electromagnetic radiation of the first wavelength and the phosphor emission of the second wavelength from the excitation spot.