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Related Experiment Video

Updated: May 27, 2026

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

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Published on: June 6, 2017

Applying slope constrained Q-type aspheres to develop higher performance lenses.

Bin Ma¹, Lin Li, Kevin P Thompson

¹The Institute of Optics, University of Rochester, 275 Hutchinson Road, Rochester, New York 14627, USA. binma@optics.rochester.edu

|November 24, 2011

Summary

This summary is machine-generated.

A new Q-type aspheric description improves lens design by allowing direct slope constraints. This results in more testable and robust optical systems, reducing sensitivity to assembly errors for high-NA lithographic lenses.

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Last Updated: May 27, 2026

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Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Area of Science:

Optical engineering
Lithography optics

Background:

Standard power series descriptions for aspheric surfaces in high NA lithographic lenses require high precision.
This precision exceeds typical double-precision computing capabilities.

Purpose of the Study:

Introduce the Q-type aspheric description to address precision limitations.
Investigate the benefits of slope constraints during optimization using Q-type surfaces.

Main Methods:

Developed and applied the Q-type aspheric surface description.
Optimized aspheric surfaces with direct slope constraints.

Main Results:

Q-type aspheric surfaces enable direct slope constraint during optimization.
Optimized surfaces are more testable.
Solutions show reduced sensitivity to assembly misalignments (e.g., tilt and decenter) by over 3X for a NA 0.75 lens.

Conclusions:

The Q-type aspheric description offers a practical solution for high-precision lens design.
Incorporating slope constraints enhances optical system robustness and performance in real-world applications.