F21S41/33

Laser based illumination device, and vehicle headlamp with such laser based illumination device
11047544 · 2021-06-29 · ·

An illumination device comprises at least a laser (1) emitting a laser beam (6) of light of a first wavelength, a wavelength converting member (5) converting at least part of the light of the first wavelength into light of a second wavelength, a scanning unit (4) adapted to scan the laser beam (6) across the wavelength converting member (5) and an imaging optics (2) imaging a light emitting face of the laser (1) via the scanning unit (4) onto the wavelength converting member (5). In the proposed device, the laser beam (6) is guided via reflection at a reflective member (3) to the wavelength converting member (5). The reflective member (3) comprises a combination of at least a first and a second reflective element (8, 9), wherein the first and second reflective elements (8, 9) are formed and arranged such that the light emitting face of the laser (1) is imaged as a mirror-inverted image on the wavelength converting member (5) via the first reflective element (8) and as a non-mirror-inverted image via the second reflective element (9), both images being superimposed on the wavelength converting member (5). Due to this reflective member, intensity fluctuations in the image of the light emitting face on the wavelength converting member are reduced without enlarging the image.

Vehicular lamp

A vehicular lamp is capable of projecting light in a forward direction and light in a direction different of the projection lens from the forward direction. The vehicular lamp includes: a light source (3) that emits light forward, and a projection lens (4) that projects light emitted from the light source (3) forward. The projection lens (4) includes a first lens surface (4a) located on a side facing the light source (3), and receiving light emitted from the light source (3), a second lens surface (4b) located on a side opposite to the first lens surface (4a) to output received light forward, and an output portion (14) located on an outer peripheral side surface between the first lens surface (4a) and the second lens surface (4b) and configured to output a part of light (L′) having been incident on and entered through the first lens surface (4a) in a direction different from the forward direction.

Lamp unit

A lamp unit includes: a projective optical system; a light deflector that is provided behind the projective optical system and selectively reflects incident light toward the projective optical system; a first irradiating optical system that irradiates a reflecting part of the light deflector with first light; and a second irradiating optical system that irradiates the reflecting part of the light deflector with second light. The first irradiating optical system and the second irradiating optical system are arranged such that a direction of irradiation by the first light and a direction of irradiation by the second light are not parallel when a front of the reflecting part is viewed.

Lamp unit

A lamp unit includes: a projective optical system; a light deflector that is provided behind the projective optical system and selectively reflects incident light toward the projective optical system; a first irradiating optical system that irradiates a reflecting part of the light deflector with first light; and a second irradiating optical system that irradiates the reflecting part of the light deflector with second light. The first irradiating optical system and the second irradiating optical system are arranged such that a direction of irradiation by the first light and a direction of irradiation by the second light are not parallel when a front of the reflecting part is viewed.

Light distribution member, lighting or signaling device and motor vehicle
11047542 · 2021-06-29 · ·

Provided are a light distribution member, a lighting or signaling device having the same, and a motor vehicle. A main body part of the light distribution member defines: a light incidence surface, through which light from a light source enters the main body part; a light emergence surface, a portion of the light entering the main body part being allowed to reach the light emergence surface directly in such a way that the portion of the light acts as a first light beam that is at least substantially parallel; and a first side surface and a second side surface, which are reflective faces and arranged on either side of an axis (O-O′), wherein at least one of the first side surface and the second side surface is provided with at least one first reflective structure configured to reflect the light reaching it, and to direct the reflected light as a second light beam toward the light emergence surface, and wherein an angle of the first light beam relative to the axis (O-O′) is different from an angle of the second light beam relative to the axis (O-O′).

Vehicular lamp unit and vehicular lamp
11035541 · 2021-06-15 · ·

A vehicular lamp unit includes: a substrate on which a light source is mounted; a reflector including a substrate fixing portion and a reflector main body; and a screw. The substrate includes a first through hole, into which the screw is inserted; the substrate fixing portion includes a boss portion into which the screw is screwed; the reflector main body includes a base end portion fixed to the substrate fixing portion and a reflective surface to reflect light from the light source; the substrate is fixed to the substrate fixing portion in a state in which the substrate is held between the screw and the substrate fixing portion by screwing the screw, inserted into the first through hole, into the boss portion; and the substrate fixing portion includes at least one second through hole formed between the base end portion of the reflector main body and the boss portion.

Narrow aperture light system
11047543 · 2021-06-29 · ·

A light system comprising: (a) one or more reflectors; (b) a lens; (c) an optical axis extending through the one or more reflectors, the lens, or both; and (d) a light source located entirely on one side of the optical axis so that light from the light source is directed at an angle relative to the one or more reflectors and the one or more reflectors redirect the light through the lens.

Reflector-less single lens vehicle lamp
11118748 · 2021-09-14 · ·

A lamp includes a housing, a lens module and bezel. The lens module has one or more integrally formed lens units. Each lens unit has an emission surface and a light gathering portion. The light gathering portion includes an incident surface. Each lens unit has a solid light-path portion formed from the light transmitting material and disposed between the incident and emission surfaces. The emission surface of each lens unit is a portion of the outer surface of the module. The lamp includes one or more light sources, each projecting light to the incident surface of a lens unit. The lamp excludes any reflecting structures directing light to the incident surface of a lens unit. The sealing bezel seals the lens module to the housing. When sealed, the lamp includes no other light-transmitting structures external to the outer surface of the lens module.

Luminous device imaging the lit surfaces of at least two collectors
11022266 · 2021-06-01 · ·

The invention relates to a luminous device, particularly applicable to a motor vehicle, comprising a first light source and a second light source that each emit light rays; a first collector and a second collector each include a reflective surface configured to collect and reflect the light rays emitted by the first light source and the second light source, respectively, into a first light beam and a second light beam; an optical system configured to project the first light beam and second light beam along an optical axis of the device; the optical system is configured to form a luminous image of each reflective surface of the first collector and second collector.

PROJECTOR-TYPE VEHICLE HEADLAMP
20210131635 · 2021-05-06 ·

A projector-type vehicle headlamp not having a physical shade is disclosed. The vehicle headlamp comprises a first light source for emitting light, a lens through which the light exits the headlamp, and a first optics for receiving light from the first light source and directing the received light towards the lens, with the lens having a focal surface between the first optics and the lens, and with the lens having an optical axis. The first optics is configured to generate multiple images of the first light source on the focal surface above an intersection line of the focal surface with a reference plane, with the reference plane containing the optical axis of the lens, and with the reference plane enclosing an angle in the range of 0-45 degree with a horizontal plane when the headlamp is installed in a vehicle. The first optics is a curved reflector with an elliptical side edge.