Light source device and headlamp system

Abstract

The invention protects a light source device. The light source device comprises a first light source module, a second light source module, an imaging lens group, a micro-reflector and a substrate; theimaging lens group at least comprises a first lens and a second lens; the micro-reflector is arranged between the first lens and the second lens; the first light source module comprises a laser lightsource and a wavelength conversion component, which are arranged separately; the laser light source emits exciting light; after being reflected by the micro-reflector, the exciting light is incidentonto the wavelength conversion component through the first lens; the wavelength conversion component absorbs at least part of the exciting light, and emits excited light towards the first lens; the wavelength conversion component is arranged on the optical axis of the imaging lens group; the second light source module comprises an LED array arranged on the substrate; the second light source moduleand the wavelength conversion component are arranged at the same side of the first lens; furthermore, the second light source module is set to deviate the optical axis of the imaging lens group; andthe imaging lens group is used for projecting light emitted by the second light source module and the wavelength conversion component into a far field to image. By means of an imaging system, controllable distribution of exit light is realized.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a light source device and a headlight system. Background technique [0002] Since the invention of blue LEDs, semiconductor light sources have gradually replaced traditional light sources and are applied to various fields of lighting with their higher and higher luminous brightness and luminous efficiency, the environmental protection characteristics of materials, and the luminous characteristics of cold light sources. As the demand for lighting brightness continues to increase, the industry has high hopes for semiconductor light sources. The existing LED lighting is gradually progressing in the direction of high power and complex light-emitting elements. However, due to the characteristics of LED itself, the problem of heat dissipation is increasingly hindering the improvement of lighting brightness. Although the total luminous flux can be increased by using a plurality of LE...

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Problems solved by technology

[0006] Aiming at the defect that the above-mentioned prior art cannot form a controllable lighting spot with non-uniform illumination distribution, the present invention provides a new type of light source device that is controllable in a high-illuminance area, including a first light source module, a second light source module , an imaging lens group, a micro mirror and a substrate; the imaging lens group includes at least a first lens and a second lens, and the micro mirror is arranged between the first lens and the second lens; the first lens A light source module includes a laser light source and a wavelength conversion element separately arranged, the laser light source is used to emit excitation light, the excitation light is reflected by the micro-mirror, and enters the wavelength conversion element through the first lens, The wavelength conversion element absorbs at least part of the excitation light, and emits the light with a wavelength different from the excitation light towards the first lens, and the wavelength conversion element is arranged on the optical axis of the imaging lens group; The second light source module includes an LED array arranged on the substrate, arranged on the same side as the first lens with the wavelength conversion element, and arranged away from the optical axis of the imaging lens group, and the imaging lens The set is used to project the light emitted by the second light source module and the wavelength conversion element in the far field for imaging

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