Physics Lab Equipment

LEOK-5 Lens Aberration and Fourier Optics Kit

LEOK-5 Lens Aberration and Fourier Optics Kit


  • Lens Aberration Demonstration

  • Fourier Optical Processing

  • Easy Operation

  • Cost Effective


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 

DescriptionSpecs/Part No.Qty
Optical rail1.2 m; aluminum1
Laser holderSZ-421
CarrierX-Z translation2
Lensf = 4.5, 50, 100, 100, 150 mm1 each
Plano-convex lensf =75 mm1
He-Ne laserLLL-2 (>1.5 mW@632.8 nm)1
Tungsten-Bromine lampLLC-3 (12 V/30 W, variable)1
Transmissive character
Iris diaphragmSZ-151
Spatial filter1 set of 6 pcs1
White screenSZ-131
Optical filterRed, Green and Blue1 set
Plate holderSZ-121
Lens holderSZ-086
Object screenSZ-141

LEOK-5 Lens Aberration-1.jpg

Schematic of astigmatism

LEOK-5 Lens Aberration-2.jpg

Schematic of field curvature

LEOK-5 Lens Aberration-3.jpg

Schematic of distortion

LEOK-5 Lens Aberration-4.jpg

Schematic of spherical aberration

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