Aspheric machining form correction by form-measuring instrument and    aspheric programming system

Hideki Ogawa; Yukio Endo; Seiichi Itoh

doi:10.1117/12.132105

20 October 1992 Aspheric machining form correction by form-measuring instrument and aspheric programming system

Hideki Ogawa, Yukio Endo, Seiichi Itoh

Proceedings Volume 1720, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation; (1992) https://doi.org/10.1117/12.132105
Event: International Symposium on Optical Fabrication, Testing, and Surface Evaluation, 1992, Tokyo, Japan

Abstract

Developments in 2 axis CNC aspheric machines and aspheric measuring instruments met the growing demand for high accuracy aspheric form machining, machine and machining accuracy have significantly improved in last 6 years. It was found that spherical form could be machined and measured to a very high form accuracy, which was not possible to match for aspheric form due to the measurement term of absolute radius with form accuracy. Form correction software for use with aspheric form measuring instrument (Form Ta.Iysurf) was developed by Rank Taylor Hobson (RTH) to eliminate waviness on the diamond cutting edge and radius error from true radius and to reduce aspheric form machining accuracy down to that of spherical form.

Citation Download Citation

Hideki Ogawa, Yukio Endo, and Seiichi Itoh "Aspheric machining form correction by form-measuring instrument and aspheric programming system", Proc. SPIE 1720, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation, (20 October 1992); https://doi.org/10.1117/12.132105

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