Opto-Mechanical Systems Design, Volume 1, 4th Edition

11

Analysis of the Opto-Mechanical Design Interface

Paul R. Yoder, Jr.

CONTENTS

11.1  Introduction and Summary

11.2  Self-Weight Distortions of Axis-Vertical Lens Elements

11.2.1  Nature of the Problem

11.2.2  Plane-Parallel Plate Approximations of Gravity Effects

11.2.3  Allowable Diameter-to-Thickness Ratio for a Given Maximum Lens Deflection

11.2.4  Effects of Lens Shape

11.2.5  Effects of Mechanical Interface Imperfections

11.2.6  Self-Weight Deflection of Large Refracting Telescope Objectives

11.3  Glass Strength

11.3.1  General Considerations

11.3.2  Fracture Mechanics Theory

11.3.3  Statistical Analysis of Glass Strength

11.3.4  Testing Glass Samples to Failure

11.3.5  Static Fatigue

11.3.6  Proof Testing

11.4  Stress Generation at Opto-Mechanical ...