Schematic diagram
S1: Entrance slit
M1: Plane mirror
M2 and M3: Spherical mirrors
G: Grating
S2:CCD
Display panel of software
(Click figure to enlarge)
Example of a 3-D spectral plot
(Click figure to enlarge)
Simulated camera
(Click figure to enlarge)
Note: computer not included
Features
Innovative design
3-D display
CCD receiver
High resolution
Real-time acquisition
Introduction
The LEOI-100 Experimental CCD Spectrometer is a versatile, general-purpose spectrum measurement instrument. It employs a linear CCD as the receiving unit, allowing for real-time acquisition of spectral data, which can be displayed in 3-dimensional format. This makes it an excellent tool for studying spectra from various substances, and it can also be used for calibrating optical probes in research and education.
The light source emits light, which passes through the entrance slit (S1) and is collimated by the first mirror (M2). The parallel light then strikes the grating (G), which disperses the light into its various wavelengths. The diffracted light is then imaged onto the exit plane (S2) by the second mirror (M3). At the exit plane, a linear CCD is positioned to capture the spectrum of the light. The wavelength of the light is scanned using the sine mechanism, providing high-resolution spectral data. To calibrate the spectrum of a selected work window, two standard spectral lines are needed within the spectral range of the work window.
Experimental Objectives:
1. Spectrum Measurement:
Measure and analyze the spectrum of different light sources and substances, and interpret the resulting data in terms of material composition, emission, and absorption characteristics.
2. Calibration:
Use the spectrometer to calibrate optical probes with known spectral lines, ensuring the accuracy of measurements across a specified spectral range.
3. Data Acquisition and Analysis:
Acquire spectral data through the USB interface and use the accompanying software to process, visualize, and analyze the data for further study.
The instruction manual contains comprehensive materials including experimental configurations, principles and step-by-step instructions. Please click Experiment Contents to find more information about this apparatus.
Specifications
| Description | Specifications |
| Wavelength Range | 300~900 nm |
| Focal Length | 302.5 mm |
| Relative Aperture | D/F=1/7 |
| Slit Width | 0~2 mm adjustable with a reading resolution of 0.01 mm |
| Wavelength Accuracy | ±0.4 nm |
| Wavelength Repeatability | ≤0.2 nm |
| Resolution | >0.2 nm |
| Stray Light | ≤10-3 |
| CCD | 2048 cells |
| Integration Time | 1~ 88 steps (each step: approximately 25 ms) |
| Grating | 600 lines/mm; blazed wavelength at 550 nm |
| Filter | Yellow filter: 320~500 nm, White filter: 500~900 nm |
| Overall Dimension | 450 mm×280 mm×230 mm |
| Weight | 25 kg |
| Software | Compatible with Windows 10/11 |
Parts List
| Description | Qty |
| Experimental CCD Spectrometer | 1 |
| Filter | 2 |
| USB Cable | 1 |
| Power Cord | 1 |
| Software CD | 1 |
Schematic diagram
S1: Entrance slit
M1: Plane mirror
M2 and M3: Spherical mirrors
G: Grating
S2:CCD
Display panel of software
(Click figure to enlarge)
Example of a 3-D spectral plot
(Click figure to enlarge)
Simulated camera
(Click figure to enlarge)
