The invention provides a light generating device (1000), wherein: (I) the light generating device (1000) comprises: (a) a first light source (110) configured to generate first light source light (111) having a first light source light spectral power distribution, wherein the first light source (110) comprises a first laser light source (10) configured to generate first laser light source light (11); (b) a first luminescent material (210) configured to convert at least part of the first light source light (111) into first luminescent material light (211) having a first luminescent material spectral power distribution having an emission at one or more wavelengths selected from the wavelength range of 590-780 nm, wherein the first luminescent material (210) is configured in an optical resonator (230); (II) the first light source (110) and the first luminescent material (210) are configured to generate first luminescent material laser light (1211) having a first luminescent material laser light spectral power distribution comprising at least part of the first luminescent material light (211); (III) the first light source light spectral power distribution and the first luminescent material laser light spectral power distribution mutually differ; and (IV) the light generating device (1000) is configured to generate in one or more operational modes white device light (1001) comprising the first luminescent material laser light (1211).

A method for manufacturing a laser diode device includes providing a substrate having a surface region and forming epitaxial material overlying the surface region, the epitaxial material comprising an n-type cladding region, an active region comprising at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active layer region. The epitaxial material is patterned to form a plurality of dice, each of the dice corresponding to at least one laser device, characterized by a first pitch between a pair of dice, the first pitch being less than a design width. Each of the plurality of dice are transferred to a carrier wafer such that each pair of dice is configured with a second pitch between each pair of dice, the second pitch being larger than the first pitch.

Embodiments of the present application provide a laser light source and a laser projection device. The laser light source includes a laser assembly, where the laser assembly includes a laser and a circuit board, the laser includes a substrate and a light emitting chip arranged on the substrate, a lateral surface of the substrate is provided with a plurality of pins extending outwards therefrom, the circuit board is arranged on a side where the pins extend, and the circuit board is electrically connected to the pins. The laser light source of the present application features simple assembling and disassembling, reliable performance and relatively low cost.

A light emitting device includes: a base having a first stepped portion and a second stepped portion; a light emitting element; an electronic member configured to be irradiated by light emitted from the light emitting element; a first wiring region located on the first stepped portion; a second wiring region located on the second stepped portion; wires connected to the light emitting element and the electronic member. The wires includes a first and second wires. The first wire has a first end that is connected to the first wiring region, and a second end. The second wire has a first end that is connected to the second wiring region, and a second end. A position of the second end of the first wire relative to the bottom face is lower than a position of the second end of the second wire relative to the bottom face.

In various embodiments, the beam parameter product and/or beam shape of a laser beam is adjusted by coupling the laser beam into an optical fiber of a fiber bundle and directing the laser beam onto one or more in-coupling locations on the input end of the optical fiber. The beam emitted at the output end of the optical fiber may be utilized to process a workpiece.

The light source unit includes a base provided with an opening, a support member fixed to the base at the opening, and a light source assembly fixed to the support member at the opening. The light source assembly includes a light source emitting laser light, a lens disposed on an optical axis of the laser light, and a holding member holding the light source and the lens. The support member has a convex receiving surface extending along the spherical surface so as to surround the optical axis when viewed from a direction parallel to the optical axis. The light source assembly is fixed to the support member by coupling the holding member to the receiving surface at a contact portion with the receiving surface. The receiving surface has a portion located on a side away from the optical axis with respect to a coupling part with the holding member.

A wearable heads-up display includes a power source, laser sources, and a lightguide. A photodetector is positioned to detect an intensity of a test light emitted at a perimeter of the lightguide from an optical path within the lightguide. A laser safety circuit provides a control to reduce or shut off a supply of electrical power from the power source to the laser sources in response to an output signal from the photodetector indicating that the detected intensity is below a threshold.

A light source device includes: a laser diode including an emission end surface for emitting laser light and a rear end surface opposite to the emission end surface; a reflecting member that reflects a portion of the laser light emitted from the emission end surface of the laser diode; a photodetector configured to detect light that is reflected at the reflecting member; and a light-shielding member disposed between the rear end surface of the laser diode and the photodetector, the light-shielding member configured to shield at least a portion of light emitted from the rear end surface of the laser diode.

A light detecting element is realized in which a length thereof is reduced in a direction perpendicular to a direction in which light detecting regions are disposed side by side. A light detecting element includes a light detecting surface provided with a plurality of light detecting regions disposed side by side in a first direction and a plurality of wiring regions electrically connected to the plurality of light detecting regions. Of the plurality of wiring regions, a plurality of the wiring regions connected to a plurality of the light detecting regions are provided in an end region that is a region excluding a central region at the light detecting surface.

A light-emitting device includes: a base including: a mount surface, and a lateral wall located around the mount surface, the lateral wall including: a pair of first protrusions located opposite to each other in a first direction which is parallel to a side of the mount surface, and a pair of second protrusions located opposite to each other in a second direction which is perpendicular to the first direction, the second protrusions being provided lower than the first protrusions; one or more light-emitting elements mounted on the mount surface of the base; a first light-transmissive member sealing a space in which the one or more light-emitting elements are mounted; and one or more wires connecting to the one or more light-emitting elements, the one or more wires being bonded on conduction regions provided on at least one of upper surfaces of the second protrusions.