Ultra-fast wavefront analyser for high volume production of camera modules lenses

M. Cherrier; I. Erichsen; A. Ruprecht; S. Krey

doi:10.1117/12.781433

25 April 2008 Ultra-fast wavefront analyser for high volume production of camera modules lenses

M. Cherrier, I. Erichsen, A. Ruprecht, S. Krey

Proceedings Volume 6995, Optical Micro- and Nanometrology in Microsystems Technology II; 699512 (2008) https://doi.org/10.1117/12.781433
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

Aspheric lenses are of increasing importance in compact imaging systems. New developments in production technologies have led to the so called wafer level production with several thousands of lenses on a single wafer. This high volume production demands fast testing equipment which allows for the characterization of complete imaging systems as well as of all of its single components. In most of the cases conventional methods cannot be used to measure single lenses or objectives in earlier production states. Although e.g. the measurement of the modulation transfer function is a well established method for fast and accurate quality inspection of entire objectives it has its limitation for single lenses. Due to its very large dynamic range the Shack-Hartmann sensor is able to measure a very broad range of spherical and aspherical lenses as well as partially or fully assembled objectives. With the combination of a fast high accuracy wavefront sensor and special positioning algorithms which allow for high throughput in mass production a new flexible instrument has been developed.

Citation Download Citation

M. Cherrier, I. Erichsen, A. Ruprecht, and S. Krey "Ultra-fast wavefront analyser for high volume production of camera modules lenses", Proc. SPIE 6995, Optical Micro- and Nanometrology in Microsystems Technology II, 699512 (25 April 2008); https://doi.org/10.1117/12.781433

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