|Download Laser-based White Light Source Datasheet (PDF, 496 KB)|
Solid-state laser-based white light sources (LWLS) is a new type of light-emitting devices that generate high intensity white light by means of wide-spectrum luminophore excited by blue laser diodes. Converted white light is non-coherent and safe for human eyes. Tydex commenced development of solid-state laser-based white light sources in the end of 2019.
Best luminophore to be used in LWLS is cerium-doped monocrystalline yttrium aluminium garnet (YAG). To achieve efficient heat rejection, the luminophore is soldered onto a copper conductor.
Fig. 1. LWLS: principle of operation
Fig. 2. Luminophore radiates under pumping with a laser diode
Fig.3. LWLS module
Technical characteristics of LWLS module
Waterproof enclosure, rating IP67
|Radiation power||1.8–2,2 W|
|Radiation wavelength range||450–700 nm|
|Luminous flux||400–500 lm|
|Beam divergence||60 °|
|Operating current||2.5–3.0 А|
|Operating voltage||3.6–4.8 V|
|Operating temperature||0 ~ + 65 °С|
|Storage temperature||-40 ~ + 85 °С|
Alternate module design is available on demand, with radiation power output of 4.0 – 5.0 W and luminous flux of 800 – 1000 lm at the cost of double power consumption.
LWLS provides luminosity, efficiency and durability surpassing that of xenon lamps. LWLS can be used as a basis for development and full-scale production of new generation of searchlights, street lamps and other lighting fixtures.
Combining white and infrared light sources in a single package, one gets a promising component for development of novel safe driving aids, self-driving cars and unmanned aerial vehicles, portable lights, rangefinders and security system elements.