Typical Applications of Spectrometer

The spectrometer from Lisun Group has a wide range of applications, for instance, agriculture, astronomy,
automobiles, biotechnology, chemistry, coating, colorimetric measurement, environmental monitoring, film industry,
food, gem testing, LED testing, printing, paper-making, Raman spectroscopy, semiconductor industry etc. There are
some typical applications shown as below.

1.Color measurement (for detailed information please click here)—colorimeter.

Generally speaking, different experimental layouts can be used for the measurement of objects and the color of
sticky liquid, such as using the reflective optical fiber probe or integrating sphere. During the measurement, the
spectrometer with the wavelength range from 380nm to 780nm, and the distinguish ability (FWHM) of 5nm; besides, the
continuous source of white light and white reflective tiles are also needed. Various optical fiber probes can be
used for the measurement of textiles, paper, fruits, wine, the colors of bird feathers etc. The typical experimental
layouts of measurement by using the color of reflective spectra are shown in the picture.

2. The absorption spectrum measurements of UV/Visible light and the liquid absorption rate measurements can be
achieved by different experimental layouts and wavelength ranges, s uch as measuring on-line absorption rate by
using Immersion-type Optical Fiber Probe or Flow Sample pools, or using the sample holder for sample absorption
measurement. For the spectrometer used to measure the wavelength range of UV/Visible light, the wavelength range of
200-1100nm, and resolution of 1.4nm (FWHM) can be selected. Besides, the Deuterium – Halogen lamp is needed as a
light source. Different probes for different applications can be selected, and the typical experimental layout for
the measurement of absorption rate is shown as in the picture.

3. The measurement of Emission Spectra (for detailed information, please click here)

The measurement of Emission Spectra can be achieved by using experimental layouts and wavelength ranges, and the
Cosine Corrector or integrating sphere is still needed. The measurement of Emission Spectra can be achieved in the
UV/Visible and the visible /near-infrared wavelength range. For the absolute measurement of the Emission Spectrum,
the spectrometer can configure the wavelength range from 200-400nm or 350-1100nm, or combining it to achieve UV/VIS 200-1100nm, and the radiometric calibration can be carried out in the calibration labs of Lisun Group. After the calibration, the experimental layouts can’t be changed, for example: The optical fiber and the Device of Energy
Uniformity can’t be changed.

In order to make the experimental layout more flexible, the calibration can be done at the user’s site by the use of
Visible / Near Infrared calibration light source (LS-1-CAL) or UV / VIS / NIR calibration light source (DH2000-CAL).
The powerful software from Lisun Group can complete the calibration and load the radiometric calibration data. A
typical experimental layout of the Emission Spectral Measurements is shown in the picture.

4. LED Test
The most simple and rapid methods of measuring the luminous flux from LED is to use an Integrating Sphere, then
connect it to an Optics spectrometer from Lisun Group. The system can be used to do calibration by Halogen Lamps
(LS-1-CAL-INT), and then use the software from Lisun Group to calculate the relevant parameters from the measured
Spectral Distribution, and the Absolute Measurement of radiation can be achieved. The Spectral luminous Intensity of
the measured illuminant can be calculated, display and stored by μW/cm2/nm. Another window can also display about
10 parameters: radiation quantityμW/cm2, μJ/cm2, μW or μJ; luminous flux lux or lumen, color axis X, Y, Z, x, y,
z, u, v and color temperature (Color Temperature Meter). The typical experimental layout of LED measurement is shown in the picture.