Optiland

Introduction

Optiland is a lens design and analysis program written in Python 3. It provides an intuitive and efficient interface for defining and visualizing lens systems, performing optimization of lens systems based on user-defined merit functions and variables, as well as analyzing optical systems using geometric and diffraction-based methods. Leveraging computational libraries such as NumPy and SciPy, Optiland delivers exceptional performance and efficiency in handling complex optical computations.

Get started immediately with Optiland Tutorial #1 or see the extensive Learning Guide.

Python code to generate this 3D visualization:

from optiland.samples.objectives import ReverseTelephoto
lens = ReverseTelephoto()
lens.draw3D()

Installation

You can install the package using pip. To do so, follow these steps:

1. Open a terminal or command prompt.

2. Run the following command to install the package:

   pip install git+https://github.com/HarrisonKramer/optiland.git
   

Functionalities

• Lens entry
• 2D/3D visualization
• Paraxial analysis
• Real and paraxial ray tracing
• Real analysis functions (spot diagrams, ray aberration fans, OPD fans, distortion, MTF, etc.)
• Glass catalogue and index/abbe v-number determination (based on refractiveindex.info)
• Design optimization
• Wavefront and Zernike analysis
• Coating analysis

The code itself is in constant flux and new functionalities are always being added.

Learning Guide

This guide gives a step-by-step approach to learning how to use Optiland.

1. Introduction to Optiland
   • Tutorial 1a - Optiland for Beginners
     • Lens entry
     • Material selection
     • Aperture, field and wavelength selection
     • Drawing a lens in 2D and 3D
   • Tutorial 1b - Determining Lens Properties
     • Focal length
     • Magnification
     • F-Number, Entrance/Exit pupil sizes & positions
     • Focal, Principal, and Nodal points, etc.
2. Real Raytracing & Analysis
   • Tutorial 2a - Tracing & Analyzing Rays
     • How to trace rays through a system
     • Analyzing ray paths & properties
   • Tutorial 2b - Tilting & De-centering Components
     • Tracing rays through misaligned components
   • Tutorial 2c - Monte Carlo Raytracing Methods
     • How variations in lens properties impact lens performance
   • Tutorial 2d - Aspheric Components
     • Modeling even aspheres
3. Aberrations
   • Tutorial 3a - Common aberration analyses/plots
     • Spot diagrams
     • Ray fans
     • Y-Ybar plots
     • Distortion / Grid distortion plots
     • Field curvature plots
   • Tutorial 3b - 1st & 3rd-Order Aberrations
     • Calculation of seidel, 1st & 3rd-order aberrations
   • Tutorial 3c - Chromatic Aberrations
     • Achromatic doublet to reduce chromatic aberrations
4. Optical Path Difference (OPD), Point Spread Functions (PSF) & Modulation Transfer Function (MTF)
   • Tutorial 4a - Optical Path Difference
     • OPD fans and plots
   • Tutorial 4b - PSF & MTF Calculation
     • Geometric MTF
     • FFT-based PSF/MTF
   • Tutorial 4c - Zernike Decomposition
     • Decomposing wavefront using Zernike polynomials
     • Coefficient types: Zernike standard, Zernike fringe, Zernike Noll
5. Optimization
   • Tutorial 5a - Simple Optimization
     • Operand and variable definition
     • Local optimization
   • Tutorial 5b - Advanced Optimization
     • Global optimization
   • Tutorial 5c - Optimization Case Study - Update in progress (target completion: Sept. 2024)
     • Designing a smartphone camera
6. Coatings & Polarization
   • Tutorial 6a - Introduction to Coatings
     • Simple coatings in Optiland
     • Impact of coatings on system performance
   • Tutorial 6b - Introduction to Polarization
     • Basics of polarization in Optiland
     • Analyzing polarization performance
   • Tutorial 6c - Advanced Polarization - Update in progress (target completion: Sept. 2024)
     • Waveplates, polarizers, and the Jones matrix
     • Jones pupils
7. Advanced Optical Design
   • Tutorial 7a - Designing a Complex System - Update in progress (target completion: Sept. 2024)
   • Tutorial 7b - Surface Roughness & Scattering - Update in progress (target completion: Sept. 2024)
   • Tutorial 7c - Freeform Surfaces - Update in progress (target completion: Sept. 2024)
8. Tolerancing
   • Tutorial 8a - Introduction to Tolerancing - Update in progress (target completion: Sept. 2024)
     • Sensitivity studies
   • Tutorial 8b - Advanced Tolerancing - Update in progress (target completion: Sept. 2024)
     • Monte Carlo-based Tolerancing
9. Extending Optiland
   • Tutorial 9a - Custom Surface Types - Update in progress (target completion: Sept. 2024)
     • Adding new surface types
   • Tutorial 9b - Custom Coating Types - Update in progress (target completion: Sept. 2024)
     • Adding new coating types
   • Tutorial 9c - Custom Optimization Algorithms - Update in progress (target completion: Sept. 2024)
     • Adding new optimization approaches
10. Machine Learning in Optical Design
    • Tutorial 10a - Reinforcement Learning for Lens Design - Update in progress (target completion: Sept. 2024)

License

Distributed under the GPL-3.0 License. See LICENSE for more information.

Contact

Kramer Harrison - [email protected]

Acknowledgements & References

• https://www.lens-designs.com/
• https://github.com/Sterncat/opticspy
• https://github.com/jordens/rayopt