Share Email Print
cover

Proceedings Paper

New edge-blackening techniques for refractive optical elements
Author(s): Ramona Eberhardt; A. Gebhardt; C. Weber; Stefan Risse; Volker Guyenot
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

There is a trend in the optical industry to automate the edge-blackening of optical components. The goal of edge- blackening is to coat the areas outside the functional region of optical components, namely the peripheral areas including the surface edge or 'diaphragm' and apertures, with light absorbing, index-matched material to minimize scattering light. The common method today is the manual application with brush or ink-writer of quick-drying liquid pigmented synthetic resin. The lenses are fitted at a rotary table with a vacuum-pump or with considerable disadvantage inhibiting the automation. Another problem is the use of a high number of lacquers with different or partly unknown properties, due to varying chemical bases.

Paper Details

Date Published: 19 August 1996
PDF: 8 pages
Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); doi: 10.1117/12.246803
Show Author Affiliations
Ramona Eberhardt, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)
A. Gebhardt, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)
C. Weber, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)
Stefan Risse, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)
Volker Guyenot, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)


Published in SPIE Proceedings Vol. 2775:
Specification, Production, and Testing of Optical Components and Systems
Anthony E. Gee; Jean-Francois Houee, Editor(s)

© SPIE. Terms of Use
Back to Top