Share Email Print

Proceedings Paper

Minimizing cement strain while cementing thin lenses using ultraviolet light
Author(s): Donald R. Green
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Optical Designers seem to enjoy designing doublet lenses with one lens much thicker or physically stronger than the other. For manufacturers, that can cause distortion problems when the two dissimilar materials are cemented. We measure this pull or distortion by using our Zygo interferometer. In other words we can detect the distortion in the elements by observing the fringe pattern on one of the outside surfaces. The usual element we choose to observe is the thinnest element. We regard a thin optical element as anyone with a thickness to diameter ratio of over eight to one. This is a discussion on how our company solved this problem of distortion when using an ultra violet lens cement and avoid pulling without reticulation. The goal is always to have less than 1/4 fringes or less distortion.

Paper Details

Date Published: 27 September 1993
PDF: 3 pages
Proc. SPIE 1999, Adhesives Engineering, (27 September 1993); doi: 10.1117/12.158610
Show Author Affiliations
Donald R. Green, PFG Precision Optics Inc. (United States)

Published in SPIE Proceedings Vol. 1999:
Adhesives Engineering
Eric A. Norland; Kenneth M. Liechti, Editor(s)

© SPIE. Terms of Use
Back to Top