Patent ID: 11884202
Assignee: KYOCERA SLD LASER, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  F  G  H | IPC B  G  H

Claim 17:
18. A laser-based fiber-delivered white automobile headlight system comprising:
a package having a transparent lid member for emitting a white light emission, the package comprising:
a laser device comprising a gallium and nitrogen containing material and configured as an excitation source, the laser device comprising an output facet configured to output laser electromagnetic radiation with a first wavelength ranging from 385 nm to 495 nm;
a phosphor member configured as a wavelength converter and an emitter and disposed to allow the laser electromagnetic radiation being optically coupled to a primary surface of the phosphor member;
an oblique angle of incidence configured between the laser electromagnetic radiation emitted from the laser device and the primary surface of the phosphor member, a beam of the laser electromagnetic radiation forming a spot greater than 5 μm on the primary surface of the phosphor member, the phosphor member configured to convert at least a fraction of the laser electromagnetic radiation with the first wavelength to a phosphor emission with a second wavelength that is longer than the first wavelength;
a reflection mode characterizing the phosphor member with the white light emission being generated from at least an interaction of the laser electromagnetic radiation with the phosphor emission emitted from the primary surface, the white light emission comprising of a mixture of wavelengths characterized by at least the second wavelength from the phosphor member;

an optical member mounted on the transparent lid member of the package and configured to receive the white light emission from the primary surface of a respective phosphor member and focus the white light emission;
a transport fiber configured to have a first end for receiving the white light emission from the optical member with at least 20% efficiency and transport the white light emission to a second end;
a cover extending around external edges of the package and around a periphery of the optical member, wherein a first end portion of the transport fiber extends through a first aperture of the cover and the package is arranged in a second aperture of the cover so that a bottom portion of the package is exposed outside the cover; and
a headlight module attached at a remote location and coupled with the second end of the transport fiber, the headlight module being configured to project the white light emission onto a road.