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Numerical ray tracing method for an eccentric radial gradient-index rod lens
Summary
We developed a new ray tracing method for gradient-index (GRIN) rod lenses with eccentric refractive index distributions. This method accurately analyzes lens performance, even with manufacturing-induced eccentricities.
Area of Science:
- Optics
- Materials Science
Background:
- Radial gradient-index (GRIN) rod lenses are typically assumed to have a rotationally symmetric refractive index.
- Manufacturing processes can introduce eccentricities in the refractive index distribution.
- These eccentricities can significantly impact lens performance.
Purpose of the Study:
- To propose a novel ray tracing method for radial GRIN rod lenses with eccentric refractive index distributions.
- To enable accurate analysis of imaging performance in eccentrically manufactured GRIN lenses.
Main Methods:
- Extension of the conventional ray tracing method to accommodate eccentric refractive index distributions.
- Development of a formalism based on the conventional method for rotationally symmetric GRIN lenses.
Main Results:
- The proposed method allows for ray tracing in GRIN lenses with eccentric refractive index distributions.
- It enables the analysis of imaging performance for such lenses.
- The method is simple and easy to implement due to its foundation in conventional formalisms.
Conclusions:
- The developed ray tracing method effectively handles eccentric refractive index distributions in radial GRIN rod lenses.
- It provides a valuable tool for analyzing and understanding the performance of eccentrically manufactured GRIN lenses.
- The simplicity and ease of implementation make it a practical solution for optical engineers.
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