Before Memmo my notes were scattered across PDFs. Now a workspace pulls everything into one place — I see exactly what's still left to study.
A complete all-in-one reference to aspheric fabrication and testing for optical applications
This book provides a detailed introduction to the manufacturing and measurement technologies in aspheric fabrication. For each technology, both basic theory and practical applications are introduced.
The book consists of two parts. In the first part, the basic principles of manufacturing technology for aspheric surfaces and key theory for deterministic subaperture polishing of aspheric surfaces are discussed. Then key techniques for high precision figuring such as CCOS with small polishing pad, IBF and MRF, are introduced, including the basic principles, theories and applications, mathematical modeling methods, machine design and process parameter selection. It also includes engineering practices and experimental results, based on the three kinds of polishing tools (CCOS, IBF and MRF) developed by the author’s research team.
In the second part, basic principles of measurement and some typical examples for large and middle-scale aspheric surfaces are discussed. Then, according to the demands of low cost, high accuracy and in-situ measurement methods in the manufacturing process, three kinds of technologies are introduced, such as the Cartesian and swing-arm polar coordinate profilometer, the sub-aperture stitching interferometer and the phase retrieval method based on diffraction principle. Some key techniques are also discussed, including the basic principles, mathematical modeling methods, machine design and process parameter selection, as well as engineering practices and experimental results. Finally, the team’s research results about subsurface quality measurement and guarantee methods are also described.
This book can be used as a reference for scientists and technologists working in optical manufacturing, ultra-precision machining, precision instruments and measurement, and other precision engineering fields.
Before Memmo my notes were scattered across PDFs. Now a workspace pulls everything into one place — I see exactly what's still left to study.
Memmo's summaries are gold before exams. I don't have to re-read 800 pages two weeks before — just the important parts.
The AI chat has saved me the night before an exam more than once. I just keep asking until I get it — no waiting on a study group to reply.
The quizzes hit exactly what I need to know. Memmo tracks what I get stuck on — so I only practice what's worth it.
Flashcards with spaced repetition are magic. Memmo knows when I'm about to forget something and brings it back.
The AI podcasts are my favorite. I listen on my way to school and get a recap without sitting at a computer.
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