A compact, high-speed, desktop turnkey measurement system for the characterization of the surface topography of spherical, aspherical, and toroidal surfaces

Stephen D. Fantone; David A. Imrie; Jian Zhang

doi:10.1117/12.757720

28 November 2007 A compact, high-speed, desktop turnkey measurement system for the characterization of the surface topography of spherical, aspherical and toroidal surfaces

Stephen D. Fantone, David A. Imrie, Jian Zhang

Author Affiliations +

Proceedings Volume 6834, Optical Design and Testing III; 68340P (2007) https://doi.org/10.1117/12.757720
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

This paper describes a desktop, turnkey metrology system tailored for the measurement of the surface topography of small optical components such as contact and intraocular lenses and molds. The system incorporates a wavefront sensor that provides interferometric accuracy while being relatively insensitive to vibration. Highly accurate measurement of the radius of curvature (typically better than .02%, 2 micrometers on a 10 mm radius part) is obtained using a patented data reduction system. The system also measures toroidal and aspherical systems and can be readily adapted to the measurement of longer radius parts. The system is capable of measuring surface topography in less than 10 seconds after part placement and is usually operated by unskilled personnel. Full three-dimensional topography is reported including peak-to-valley and root-mean-square surface departure, and Zernike polynomials. This paper provides an overview of the optical configuration and software algorithms that enable the highly precise capability of the device.

Citation Download Citation

Stephen D. Fantone, David A. Imrie, and Jian Zhang "A compact, high-speed, desktop turnkey measurement system for the characterization of the surface topography of spherical, aspherical and toroidal surfaces", Proc. SPIE 6834, Optical Design and Testing III, 68340P (28 November 2007); https://doi.org/10.1117/12.757720

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Objectives

Wavefronts

Head

Collimation

Wavefront sensors

Aspheric lenses

Interferometry

Show All Keywords

Keywords/Phrases

Search In:

Publication Years