Light source system and lighting device

Abstract

The invention provides a light source system. The light source system comprises: a first exciting light source, used for emitting first exciting light; a wavelength conversion structure, comprising awavelength conversion material layer used for receiving the first exciting light and converting at least part of the first exciting light into first excited light to be emitted out, wherein a transmission area and a non-transmission area surrounded by the transmission area are defined on the face, opposite to the incident face of the first exciting light, of the wavelength conversion material layer; and a second exciting light source, arranged on the side, away from the incident face of the first exciting light, of the wavelength conversion structure and used for emitting second exciting light, wherein the second exciting light enters the wavelength conversion material layer from the transmission area, and the wavelength conversion material layer converts at least part of the second exciting light into second excited light to be emitted out and transmits the part, not absorbed by the wavelength conversion material layer, of the second exciting light. The invention further provides a lighting device.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a light source system and an illuminating device using the light source system. Background technique [0002] In the lighting field of laser remote excitation phosphor technology, blue laser is usually used to excite yellow fluorescent material layer to produce yellow fluorescence, and yellow fluorescence is combined with blue laser to produce white light. When the laser beam is gathered into a spot and illuminates the surface of the fluorescent material layer, there is a "spot spreading phenomenon", that is, the phenomenon that the area A' of the light-emitting spot after excitation is larger than the actual area A of the excitation spot. In the field of lighting applications, this diffusion phenomenon will cause a "yellow circle" problem on the edge of the finally projected white light beam spot, which seriously affects the color uniformity of the spot. [0003] At present, a...

AI Technical Summary

Problems solved by technology

However, the introduction of components such as fly-eye lenses or square rods complicates the optical path design, which not only increases the volume and cost of the light source, but also reduces the light collection efficiency of the light source.

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