A coherent light beam from a light source is scanned by a scanning member and is incident to a light receiving surface of a light diffusing element. The incident light beam is emitted as diffused light, passes through an illumination optical system, and forms a drawing spot on an illumination target surface. When a scan control unit controls scanning of the light beam, an illumination area is formed by the moving drawing spot on the illumination target surface.

The invention relates to a light module for a motor vehicle headlamp, comprising at least one optoelectronic component (300), which is arranged in the main emission direction of a first illuminant (110) and which comprises a controllable arrangement of a plurality of micromirrors (310), which can be pivoted into a first and a second position. Micromirrors (310) that are in the first position deflect light beams toward at least one projection optical unit (400), which is designed to produce a light distribution. Micromirrors (310) that are in the second position deflect light beams toward a light-beam-absorbing absorber (500). The light module also comprises at least a control device (200), a sensor element (600) and a second illuminant (120). The control device (200) is designed to control the sensor element (600) and the second illuminant (120). Micromirrors (310) that are in the first position deflect the light beams that can be emitted by the second illuminant (120) toward the sensor element (600). The sensor element (600) is designed to sense light beams from the second illuminant (120) in order to obtain a value, and to transmit said value to the control device (200), which compares the value with a threshold value stored in a memory. Switching on of the first illuminant (110) is prevented when the threshold value is reached, or the first illuminant (110) is switched on when the threshold value is fallen below.

An automotive lighting apparatus is provided that includes a rear body which is adapted to be fixed to the outside or to the inside of the vehicle; a front half-shell arranged to close the mouth of said rear body; and at least one lighting assembly which is located inside the rear body and is adapted to backlight, on command, a corresponding transparent or semi-transparent sector of the front half-shell; the lighting assembly including a radially emitting optical fibre of given length; an electrically-powered, collimated light source which is located in front of a proximal end of the optical fibre, and is adapted to direct, towards the same proximal end, a collimated light beam that enters and travels inside the optical fibre; at least one proximal photometric sensor which is arranged beside the collimated light source and/or the proximal end of the optical fibre so as to capture/detect the light reflected/scattered on entering into the optical fibre; at least one distal photometric sensor which is located in front of the distal end of the optical fibre, and is adapted to capture/detect the light exiting from the distal end of the optical fibre; and an electronic control unit which is adapted to command the collimated light source on the basis of the signals coming from said proximal and distal photometric sensors.

A light source device includes a semiconductor light-emitting device which emits coherent excitation light, and a wavelength conversion element which is spaced from the semiconductor light-emitting device, generates fluorescence by converting the wavelength of the excitation light emitted from semiconductor light-emitting device, and generates scattered light by scattering the excitation light. The wavelength conversion element includes a support member, and a wavelength converter disposed on the support member. The wavelength converter includes a first wavelength converter, and a second wavelength converter which is disposed around the first wavelength converter to surround the first wavelength converter in a top view of the surface of the support member on which the wavelength converter is disposed. The ratio of the intensity of fluorescence to that of scattered light is lower in the second wavelength converter than in the first wavelength converter.

A light source device includes a semiconductor light-emitting device which emits coherent excitation light, and a wavelength conversion element which is spaced from the semiconductor light-emitting device, generates fluorescence by converting the wavelength of the excitation light emitted from semiconductor light-emitting device, and generates scattered light by scattering the excitation light. The wavelength conversion element includes a support member, and a wavelength converter disposed on the support member. The wavelength converter includes a first wavelength converter, and a second wavelength converter which is disposed around the first wavelength converter to surround the first wavelength converter in a top view of the surface of the support member on which the wavelength converter is disposed. The ratio of the intensity of fluorescence to that of scattered light is lower in the second wavelength converter than in the first wavelength converter.

A headlight for a vehicle includes a light source. The light source includes: a substrate; a light emitting diode chip; and a phosphor. The phosphor through which light exiting from a light emitting surface penetrates. The phosphor includes an exiting surface through which the light from the light emitting surface penetrates and exits. A first direction of the exiting surface corresponds to a height direction of a light distribution pattern by the light exiting from the exiting surface, and a second direction of the exiting surface corresponds to a spread in a lateral direction of the light distribution pattern. A dimension in the first direction of the exiting surface is smaller than a dimension in the second direction of the exiting surface.

A headlight for a vehicle includes a light source. The light source includes: a substrate; a light emitting diode chip; and a phosphor. The phosphor through which light exiting from a light emitting surface penetrates. The phosphor includes an exiting surface through which the light from the light emitting surface penetrates and exits. A first direction of the exiting surface corresponds to a height direction of a light distribution pattern by the light exiting from the exiting surface, and a second direction of the exiting surface corresponds to a spread in a lateral direction of the light distribution pattern. A dimension in the first direction of the exiting surface is smaller than a dimension in the second direction of the exiting surface.

A light source unit of a vehicle lighting system includes: a light source to emit excitation light; a light generating unit including a luminescent layer to emit generation light by being irradiated with the excitation light and a holding member holding the luminescent layer; and a lens member to output generation light from the luminescent layer toward the front, with the light source unit mounted on the vehicle.

[Object] External leakage of laser light can be prevented in a reflective type light source device. [Solution] Laser light excites a first surface (21) of a phosphor light-emitting section. (20), and a window portion (30) formed of a transparent member disposed spaced away from the first surface (21) is provided. A light leakage prevention portion (600), which inhibits the laser light reflected at the first surface (21) of the phosphor light-emitting section (20) from leaking to the outside through the window portion (30) is provided to part of the window portion (30).

[Object] External leakage of laser light can be prevented in a reflective type light source device. [Solution] Laser light excites a first surface (21) of a phosphor light-emitting section. (20), and a window portion (30) formed of a transparent member disposed spaced away from the first surface (21) is provided. A light leakage prevention portion (600), which inhibits the laser light reflected at the first surface (21) of the phosphor light-emitting section (20) from leaking to the outside through the window portion (30) is provided to part of the window portion (30).