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
LEOI-100 Experimental CCD Spectrometer is a general-purpose spectrum measuring instrument. It uses a linear CCD as receiving unit capable of real-time acquisition and 3-dimensional data display. LEOI-100 is a valuable instrument for studying the spectra of various substances or calibrating optical probes.
LEOI-100 consists of a grating monochromator, a linear CCD unit, a scanning system, and an electronic amplifier with USB interface. This instrument integrates optics, precision mechanics and electronics in one unit. The optical element adopts a C-T model shown to the left. The entrance slit is straight with a width continuously adjustable from 0 to 2 mm. The beam from the light source passes through entrance slit S1 (S1 is on the focal plane of a collimation mirror), then reflected by mirror M2. The parallel light strikes grating G. Mirror M3 forms the image of the diffracted light coming from the grating onto exit plane S2. For the configuration of a spectrometer, a CCD is placed at S2 to acquire the spectrum. If the CCD is replaced with a slit, a monochromator is configured. This instrument uses a sine mechanism for wavelength scanning.
To calibrate the spectrum of a selected work window, two standard spectral lines are needed within the spectral range of the work window.
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)
