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Robert Smythe
Äpre Instruments
Webinars
Presented by Robert Smythe
November 2023
High Quality Measurements of Mid Spatial Frequencies in Optical Surfaces
Modern computer numerical control (CNC) polishing has revolutionized optical component manufacturing by enabling both more precise and wilder surface shapes to be deterministically manufactured....
January 2023
Minimizing Interferometric Measurement Variations During Optical Manufacturing
Optical manufacturing has become increasingly challenging as specifications tighten for wavefronts, form, slopes, and mid-spatial frequency features. Interferometers are essential tools to control...
April 2021
Interferometers: The Light Source Determines Performance and Application
The practical application of interferometers to optical component and system testing was enabled by the invention of the laser. White light interferometers were nearly impossible to use with...
Articles
By Robert Smythe
December 2023
New Technology Quantifies Optics’ Elusive Mid-Spatial Frequencies
New polishing technologies caused a significant shift in optical manufacturing during the start of the 21st century. Computer numerical control (CNC) and deterministic optical polishing/figuring...
January 2019
Measuring Optics with Spectrally Controlled Interferometry
Measuring flat and prismatic optics with a traditional laser interferometer is difficult to impossible. Optical engineers, scientists, and technicians struggle to obtain accurate measurements on...
December 2025
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