F21S41/00

Illumination device

An illumination device includes: laser light sources having different radiant fluxes; and diffractive optical elements provided correspondingly to the respective laser light sources. A planar dimension of the diffractive optical element, which corresponds to the laser light source that emits a laser light having a minimum radiant flux, is smaller than a planar dimension of the diffractive optical element, which corresponds to the laser light source that emits a laser light having a maximum radiant flux.

Reliable light conversion device for laser-based light sources

The invention describes a light conversion device having a light converter, which is adapted to convert primary light to converted light, so that a peak emission wavelength of the converted light is in a longer wavelength range than a peak emission wavelength of the primary light. The light conversion device also has a reflective structure coupled to at least a part of a coupling surface of the light converter, where the reflective structure is a narrowband reflector arranged to reflect at least some of the primary light impinging on the reflective structure and to transmit at least some of the converted light impinging on the reflective structure.

Light source device and light projecting device

A light source device includes: a substrate; a light-emitting unit matrix including a plurality of light-emitting units disposed in a matrix on the substrate; and a reflective resin disposed in a region, on the substrate, including a region where the light-emitting unit matrix is disposed. The plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit adjacent to each other in a column direction of the light-emitting unit matrix. The reflective resin includes a first reflective portion disposed between the first light-emitting unit and the second light-emitting unit and extending in a direction intersecting the column direction. At least a portion of an upper surface of the first reflective portion protrudes beyond an upper surface of the first light-emitting unit and an upper surface of the second light-emitting unit.

ILLUMINATION DEVICE

An illumination device includes: laser light sources having different radiant fluxes; and diffractive optical elements provided correspondingly to the respective laser light sources. A planar dimension of the diffractive optical element, which corresponds to the laser light source that emits a laser light having a minimum radiant flux, is smaller than a planar dimension of the diffractive optical element, which corresponds to the laser light source that emits a laser light having a maximum radiant flux.

Optical system for motor vehicle headlight

An optical system for a motor vehicle headlight, wherein the system includes at least two optical elements, including a light coupling area, a light decoupling area, a lateral surface which delimits the optical element and has an optically effective aperture edge for forming a bright/dark boundary in a far-field light distribution producible with the optical system. The system includes at least two anterior optics, wherein an anterior optic is associated with each optical element. The first anterior optic and first optical element are configured to produce a first far-field light distribution, wherein the second anterior optic and second optical element are configured to produce a second far-field light distribution, which lies below the bright/dark boundary of the first far-field light distribution.

Vehicle lamp and projection lens
11448377 · 2022-09-20 · ·

A vehicle lamp is provided with a projection lens having a lens profile with a rear major surface with a convex curvature and a front surface with a concave curvature. A rear height of the rear major surface is greater than a front height of the front surface. The lamp has a plurality of light sources 36 and a reflector configured to reflect the light emitted from the plurality light of sources towards the projection lens. As the lens profile is swept along a curve length, at least one of the rear convex curvature or the front concave curvature varies. The light output from the front surface of the projection lens is generally uniform along the curve length.

Vehicle lamp

A vehicle lamp includes a mirror, a plurality of light-emitting elements, and a lens. The mirror is capable of rotating a mirror surface around a rotary axis in a vertical direction. The mirror surface extends along the rotary axis. The light-emitting elements are arranged on a lateral side more than the mirror in a vehicle width direction. The lens irradiates a range wider than the mirror with light from the light-emitting elements. The light-emitting elements are disposed apart from each other such that light distribution images of the light reflected by the mirror surface are aligned along the vehicle width direction. The mirror rotates to combine the adjacent light distribution images and form a main light distribution pattern.

Illumination device using coherent light source

The invention provides a structurally simple illumination device capable of safely illuminating the desired area with coherent light. An illumination device (1) includes a laser light source (11) (coherent light source), a light diffuser (14), and a light scanning device (21). The laser light source (11) emits laser beam L (coherent light). The light diffuser (14) diffuses the laser beam L emitted from the laser light source (11). The light scanning device (21) guides the laser beam L to one of the illumination subareas constituting part of an illumination area, thereby scanning the laser beam L radiated from the light diffuser (14) across the illumination area.

Illumination device using coherent light source

The invention provides a structurally simple illumination device capable of safely illuminating the desired area with coherent light. An illumination device (1) includes a laser light source (11) (coherent light source), a light diffuser (14), and a light scanning device (21). The laser light source (11) emits laser beam L (coherent light). The light diffuser (14) diffuses the laser beam L emitted from the laser light source (11). The light scanning device (21) guides the laser beam L to one of the illumination subareas constituting part of an illumination area, thereby scanning the laser beam L radiated from the light diffuser (14) across the illumination area.

Deck light

A light fixture for mounting in a surface opening of a marine vessel or RV including a cylindrical base member having external threads, a light source disposed on a first end of the cylindrical base member and a light source cover having a cover opening for emitting light produced by the light source. The light fixture includes a cover rim extending radially outward from the light source cover and a first connector disposed on a second end of the cylindrical base member, the first connector having electrical connection pins inside a cavity. The first connector is engageable with a second connector. The second connector includes powered pins which electrically connect to the electrical connection pins to power the light source. The light fixture includes a securing ring having internal threads engageable with the cylindrical base member external threads, the cylindrical base member mountable the surface opening.