Calculation and optimization of Narcissus using paraxial ray tracing
Applied Optics
|November 19, 2010
Summary
The Narcissus effect severely degrades IR optical system image quality. This study details calculating and controlling the Narcissus effect during optical design using ray tracing and optimization methods.
Area of Science:
- Optical Engineering
- Infrared Systems
- Image Quality
Background:
- The Narcissus effect is a critical issue in infrared (IR) optical systems.
- It significantly degrades image quality due to cooled quantum detectors.
- Early control during the design phase is essential.
Purpose of the Study:
- To describe a method for calculating the Narcissus effect.
- To present a technique for reducing the Narcissus effect during optical system design.
- To integrate Narcissus effect control with aberration correction.
Main Methods:
- Utilized a routine based on paraxial ray tracing for Narcissus effect calculation.
- Incorporated Narcissus effect calculations into the merit function of an optimization program.
- Employed a damped least-squares optimization method for simultaneous correction.
Main Results:
- Successfully developed a calculable method for the Narcissus effect.
- Demonstrated automatic reduction of the Narcissus effect.
- Achieved simultaneous control of the Narcissus effect and system aberrations.
Conclusions:
- The described method enables effective calculation and reduction of the Narcissus effect.
- Integrating Narcissus effect control into the design process is feasible and beneficial.
- This approach improves the image quality of IR optical systems.
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