Open AccessModel-based self-optimization method for form correction in the computer controlled bonnet polishing of optical freeform surfaces
Author(s) -
Zhong-Chen Cao,
Chi Fai Cheung,
Mingyu Liu
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.002065
Subject(s) - polishing , machining , metrology , compensation (psychology) , computer science , process (computing) , optics , mechanical engineering , diamond turning , numerical control , materials science , engineering drawing , engineering , physics , psychology , psychoanalysis , operating system
Freeform surfaces have become increasingly widespread in the optical systems for enhanced performance and compact lightweight packaging. The geometrical complexity and high precision requirements of optical freeform surfaces for various functional optical applications, has posed great challenges in the design, precision machining, and measurement of these surfaces. This paper presents a model-based self-optimization approach for precision machining and measurement of optical freeform surfaces in the computer controlled bonnet polishing (CCBP) process. To realize the technical feasibility, the process parameters and motion control are accurately performed through modelling and simulation of machining processes, error compensation, and on-machine metrology.