Machining of optics: an introduction

Area of Science:

• Materials Science
• Optical Engineering
• Manufacturing Processes

Background:

• Optical components require precise surface finishes achievable through advanced machining.
• Traditional machining methods face limitations with certain refractory materials.
• Historical progress in optical machining has driven innovation in precision engineering.

Purpose of the Study:

• To review the history and critical variables in optical machining.
• To present new findings on the optical evaluation of machined surfaces.
• To introduce novel electroplating techniques for enhancing machinability of optical materials.

Main Methods:

• Review of historical machining progress and critical variables.
• Experimental electroplating of materials like molybdenum with silver and gold.
• Diamond turning of electroplated materials.
• Optical evaluation of machined surfaces.

Main Results:

• Demonstrated successful diamond turning of electroplated molybdenum (with silver or gold).
• Presented new data on optical evaluation of machined surfaces.
• Highlighted the potential of electroplating for expanding material capabilities in optical manufacturing.

Conclusions:

• Electroplating is a significant development enabling the machining of previously unmachinable optical materials.
• Future research should explore further applications and optimization of these advanced machining techniques.
• The study provides a foundation for future research and development in optical machining.