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. The instructional manual contains comprehensive materials including experimental setups, principles, procedures and required parts with photos.  Please click to view some sample pages of the instruction manual.


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 railAluminum1
Laser holderSZ-421
CarrierX-Z translation2
Lens (DCX)f = 4.5, 85, 150, 225 mm 1 each
Plano-convex lens (PCX)f =85 mm1
He-Ne laserLLL-2 (>2.5 mW@632.8 nm)1
Tungsten-Bromine lampLLC-3 (12 V/30 W, variable)1
Transmissive character
Iris diaphragmSZ-151
Adjustable slitSZ-401
White screenSZ-131
Optical filterRed and Blue1 each
Zero order filter
On/Off axis aperture plate
Plate holderSZ-121
Lens holderSZ-084
Adapter pieceSZ-091
Millimeter ruler3 cm1

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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