Accuracy of freeform manufacturing processes

G. P. H. Gubbels; B. W. H. Venrooy; R. Henselmans

doi:10.1117/12.825829

21 August 2009 Accuracy of freeform manufacturing processes

G. P. H. Gubbels, B. W. H. Venrooy, R. Henselmans

Proceedings Volume 7426, Optical Manufacturing and Testing VIII; 742607 (2009) https://doi.org/10.1117/12.825829
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

The breakthrough of freeform optics is limited by manufacturing and metrology technology. However, today's manufacturing machines like polishing robots and diamond turning machines are accurate enough to produce good surface quality, so the question is how accurate can a freeform be produced. To investigate how accurate freeform optics can be diamond turned, measurable freeforms (e.g. an "off-axis" sphere) were diamond turned and they were compared to there on-axis equivalents. The results of this study are described in this paper. Furthermore, an overview of the accuracies of freeform optics that TNO diamond turned are presented. An indication of freeform accuracy for diamond turned optics is derived from this, which can be used for optical designers as a guideline in their design work.

Citation Download Citation

G. P. H. Gubbels, B. W. H. Venrooy, and R. Henselmans "Accuracy of freeform manufacturing processes", Proc. SPIE 7426, Optical Manufacturing and Testing VIII, 742607 (21 August 2009); https://doi.org/10.1117/12.825829

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available