Tolerancing Forbes aspheres: advantages of an orthogonal basis

Richard N. Youngworth

doi:10.1117/12.826091

21 August 2009 Tolerancing Forbes aspheres: advantages of an orthogonal basis

Richard N. Youngworth

Proceedings Volume 7433, Optical System Alignment, Tolerancing, and Verification III; 74330H (2009) https://doi.org/10.1117/12.826091
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Axisymmetric aspheric optical surfaces deviating from conicoids are becoming more common due to their significant optical design advantages. Their practical use is being further enabled by ever-improving manufacturing and metrology methods. In order to effectively utilize such surfaces, tolerances must be applied that tie the manufacturability of the aspheric component to the optical design. In this paper tolerancing of aspheric surfaces in orthogonal bases, specifically Forbes aspheres, is covered. The significant advantages of such an orthogonal representation are highlighted and reinforced with an example.

Citation Download Citation

Richard N. Youngworth "Tolerancing Forbes aspheres: advantages of an orthogonal basis", Proc. SPIE 7433, Optical System Alignment, Tolerancing, and Verification III, 74330H (21 August 2009); https://doi.org/10.1117/12.826091

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