Size, weight, and power reduction regimes in achromatic gradient-index singlets
Applied Optics
|May 4, 2016
Summary
A new radial-axial hybrid gradient-index (GRIN) lens theory expands design possibilities by overcoming limitations in thickness and curvature. This approach enables direct study of trade-offs for size, weight, and power reduction in optical systems.
Area of Science:
- Optical Engineering
- Materials Science
Background:
- Achromatic gradient-index (GRIN) lenses offer advantages but face limitations in radial and axial extremes.
- These limitations restrict lens thickness and surface curvature, impacting optical system design.
Purpose of the Study:
- To develop a novel radial-axial hybrid GRIN theory to overcome existing limitations.
- To expand the solution space for achromatic GRIN lens designs.
- To enable direct analysis of trade-offs for size, weight, and power (SWaP) reduction.
Main Methods:
- Development of a new radial-axial hybrid GRIN theory.
- Analysis of trade-offs between lens thickness, curvature, and GRIN type.
- Exploration of the achromatic solution space using a silicon-germanium material system.
- Verification of designs through ray tracing.
Main Results:
- The developed theory overcomes restrictions imposed by radial and axial extremes in GRIN lenses.
- A larger solution space for achromatic GRIN lens design is revealed.
- Trade-offs related to SWaP reduction can be directly studied.
Conclusions:
- The radial-axial hybrid GRIN theory provides a powerful framework for designing advanced optical systems.
- Silicon-germanium-based materials show promise for implementing these hybrid GRIN designs.
- Ray tracing confirms the viability of the proposed designs.
