New edge-blackening techniques for refractive optical elements

Ramona Eberhardt; A. Gebhardt; C. Weber; Stefan Risse; Volker Guyenot

doi:10.1117/12.246803

19 August 1996 New edge-blackening techniques for refractive optical elements

Ramona Eberhardt, A. Gebhardt, C. Weber, Stefan Risse, Volker Guyenot

Proceedings Volume 2775, Specification, Production, and Testing of Optical Components and Systems; (1996) https://doi.org/10.1117/12.246803
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

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.

Citation Download Citation

Ramona Eberhardt, A. Gebhardt, C. Weber, Stefan Risse, and Volker Guyenot "New edge-blackening techniques for refractive optical elements", Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); https://doi.org/10.1117/12.246803

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