A lighting device (10) for a motor vehicle headlamp, which lighting device comprises the following: at least one first light source (50) for radiating light beams in a first radiation direction (X1), a first deflection device (100) with a deflection surface (110), which is set up to deflect at least a portion of the light beams of the at least one first light source (50) in a second radiation direction (X2), and a second deflection device (200) with a multiplicity of deflection elements which can be controlled and moved independently of one another for deflecting at least a portion of the light beams of the light beams deflected by the first deflection device (100) in a third radiation direction (X3) and for creating a light distribution in front of the lighting device (10), wherein the first deflection device (100) comprises at least one second light source (60), which at least one second light source (60) has a main radiation direction in which light beams of the second light source can be emitted, wherein the at least one second light source (60) is arranged on the deflection surface (110) of the first deflection device (100) in such a manner that the main radiation direction is parallel to the second radiation direction (X2).

Provided is a light source system, including: a light-emitting module configured to emit first light along a first light path and second light along a second light path; a wavelength conversion device configured to receive the first light and emit excited light with a color different from the first light; and a compensation device configured to guide the second light and adjust its luminous intensity distribution so that the luminous intensity distribution of the second light exiting from the compensation device is substantially identical to the excited light. The compensation device includes a compensation element configured to adjust luminous intensity distribution of a light beam so that an emergent light beam of the compensation element has reduced overall luminous intensity compared with an incident light beam. The second light exiting from the compensation device is combined with the excited light to form third light.

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.

The invention relates to a safety corridor arrangement for use in emergency situations, including an activation means, an operation means, associated with an activation centre, and a safety corridor suitable to guide or direct a person on a particular pathway. The activation centre, through activation of the activation means can cause operation of the operation means, and the operation means creates the safety corridor to guide a person along the safety corridor towards an exit. The invention also relates to a point of exit arrangement, and methods of use.

The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises: a first light source (110) configured to generate one or more of UV and blue first light source light (111), wherein the first light source (110) is a first laser light source (10); a second light source (120) configured to generated green second light source light (121), wherein the second light source (120) is a second laser light source (20); a third light source (130) configured to generate red third light source light (131), wherein the third light source (130) is a third laser light source (30); a fourth light source (140) configured to generate blue fourth light source light (141), wherein the fourth light source (140) is a fourth laser light source (40); 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 an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the first luminescent material (210) comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, La, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, In and Sc; an optical element (430) configured to combine (i) optionally unconverted first light source light (111), (ii) the second light source light (121), (iii) the third light source light (131), (iv) the fourth light source light (141), and (v) the first luminescent material light (211), to provide device light (1001), wherein the light generating device (1000) is configured to provide in an operational mode white device light (1001) comprising at least the luminescent material light (211) and the fourth light source light (141); and a control system (300) configured to control one or more of the light sources (110, 120, 130, 140).

A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.

A fluorescent module includes a fluorescent member including a phosphor-containing layer, and a light reflecting layer disposed on the phosphor-containing layer. The phosphor-containing layer contains a YAG phosphor and a Ga-YAG phosphor within the same layer, the Ga-YAG phosphor being a phosphor in which a portion of the aluminum constituting the YAG phosphor is substituted with gallium. A volumetric ratio of the Ga-YAG phosphor to the entirety of the YAG phosphor and the Ga-YAG phosphor is in a range of 19.0% to 80%.

The illumination optical system includes a beam shaper which converts an intensity distribution of a laser beam in each of a short axis direction and a long axis direction, which is a Gaussian distribution, into an intensity distribution of a parallel beam on a modulation surface of the optical modulator in each of the short axis direction and the long axis direction, which is a top hat distribution. The modulation surface and an irradiated surface are optically conjugated with respect to the long axis direction by a third lens and a fourth lens. Further, the modulation surface and a front focus position of the fourth lens are optically conjugated with respect to the short axis direction by a first lens, a second lens, and the third lens. The fourth lens condenses a beam having a top hat distribution at the front focus position onto the irradiated surface.

Apparatus and methods for producing narrow-band radiation in the green region of the visible spectrum are described. The narrow-band radiation may be used to aid subjects experiencing photophobia. In some cases, subjects may experience a reduction in pain (e.g., migraine photophobia) when using the narrow-band radiation.

An optical member includes: a body portion having a first upper surface, and a second upper surface that is located above the first upper surface and surrounds the first upper surface in a plan view; a phosphor member disposed on the first upper surface; and a hold-down portion configured to secure the phosphor member such that the phosphor member is interposed between the hold-down portion and the body portion.