Tiny size of LED chip (0.35x0.35 mm), narrow-band emission spectrum,
short response time and low thermal
flux enables creating very compact multielement LED arrays and LED matrices emitting at one or different wavelengths.
LED matrix is a kind of arrangement of similar or different
LED-chips mounted in a single compact package and driven together or independently. Such kind of emitter is a
powerful radiation source for portable optical analyzing systems. Connecting LED chips emitting at different wavelengths
and driving them independently or applying short current pulses sequentially to each chip enables
scanning of certain spectral range with the help of very compact radiation source.
Parallel connection of several LED chips emitting
at the same wavelength and driving them together provides significant increasing in total optical power.
