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sample setup: led analysis | 量子荧光|微型光纤光谱仪-ag贵宾会

sample setup: led analysis

本文关键词： 环保新材料光度
摘要

 

overview
when coupled with the optimum sampling accessories, the torus spectrometer is an excellent choice for measuring the color, relative power and absolute spectral intensity of leds.

sample led measurement setup
we offer various spectral tools for relative and absolute irradiance measurements. a typical irradiance application is measurement of the absolute spectral intensity and color of leds. in this setup we show a torus spectrometer connected via fiber to an integrating sphere, which collects the sample.

a nist-traceable power supply powers the led and adjusts the drive current. the power and color of the led are determined by comparing the led to a radiometrically calibrated vis-nir source (not pictured) designed for use with an integrating sphere. operating software completes the system and is used to calculate features such as dominant and central wavelength.

led measurement system components

torus spectrometer (360-825 nm) has low stray light and high thermal stability. this version includes a 25 µm slit and order-sorting filter, but your choice of optical bench accessories very much depends on the led wavelengths you are measuring.
fois-1integrating sphere that collects light from emission sources such as leds
led-pspower supply powers the led, displays the led drive current and holds the led in place
premium-grade patch cord directs light collected at integrating sphere to the spectrometer
radiometrically calibrated light source designed for use with an integrating sphere
spectroscopy software
 

 

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