Schematic of astigmatism
Schematic of field curvature
Schematic of distortion
Schematic of spherical aberration
Features
Lens Aberration Demonstration
Fourier Optical Processing
Easy Operation
Cost Effective
Introduction
There are six basic optical aberrations affecting the ideal performance in an optical imaging system, which are chromatic aberration, spherical aberration, coma, distortion, curvature of field and astigmatism. Experiments based on this kit will help students familiarize with these aberrations. Optical lens can perform the Fourier transform to light field on object plane. Various spatial filtering techniques are used in the reconstruction of the filtered images based on Abbe’s theory of image formation. Students can get a better understanding of Fourier optics and spatial filtering through the proposed experiments.
Examples of experiments:
Lens Aberrations: spherical aberration, field curvature, astigmatism, coma, distortion, and chromatic aberration
Fourier Optics and Spatial Filtering: low-pass filtering, high-pass filtering, and directional filtering.
Part List
| Description | Specs/Part No. | Qty |
| Optical rail | 1.2 m; aluminum | 1 |
| Laser holder | SZ-42 | 1 |
| Carrier | General | 3 |
| Carrier | X-translation | 4 |
| Carrier | X-Z translation | 2 |
| Lens | f = 4.5, 50, 100, 100, 150 mm | 1 each |
| Plano-convex lens | f =75 mm | 1 |
| He-Ne laser | LLL-2 (>1.5 mW@632.8 nm) | 1 |
| Tungsten-Bromine lamp | LLC-3 (12 V/30 W, variable) | 1 |
| Transmissive character | 1 | |
| Iris diaphragm | SZ-15 | 1 |
| Spatial filter | 1 set of 6 pcs | 1 |
| White screen | SZ-13 | 1 |
| Optical filter | Red, Green and Blue | 1 set |
| Plate holder | SZ-12 | 1 |
| Lens holder | SZ-08 | 6 |
| Object screen | SZ-14 | 1 |
Schematic of astigmatism
Schematic of field curvature
Schematic of distortion
Schematic of spherical aberration
