Mechanical method to reduce aberrations for a two-sided coating axisymmetric optical lens based on the specialized...

Area of Science:

• Optical engineering
• Materials science
• Mechanical engineering

Background:

• Two-sided coated optical lenses are crucial for various optical applications.
• Film stress in coatings can induce aberrations, negatively impacting lens performance.

Purpose of the Study:

• To develop and present a mechanical method for reducing film-stress-induced aberrations in optical lenses.
• To provide a versatile and easy-to-use analysis tool for optimizing lens design.

Main Methods:

• A specialized finite element method (FEM) was employed for analysis.
• The method allows for the investigation of film parameters (stress, thickness, coating range) and lens geometry.
• The analysis focuses on quantifying the impact of these parameters on induced aberrations.

Main Results:

• The study demonstrates that selecting appropriate film parameters can theoretically reduce aberrations.
• The finite element method provides a versatile approach to analyze stress-induced aberrations.
• The developed method facilitates easier aberration compensation in optical lens design.

Conclusions:

• The proposed mechanical method effectively addresses film-stress-induced aberrations in optical lenses.
• Optimizing film parameters is key to mitigating these aberrations.
• This approach enhances the performance and manufacturability of coated optical lenses.