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Kantenfilter

Physikalische und physiologische Grundlagen

Cut-off filter

Physical and physiological basics

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Zusammenfassung

Lichtfilter mit unterschiedlicher Transmission bei verschiedenen Wellenlängen und insbesondere Kantenfilter (steile Abhängigkeit der Transmission von der Wellenlänge) haben ein breites optisches Einsatzgebiet und sind auch ophthalmologisch relevant. Dieser Beitrag beschreibt einige physikalische und physiologische Grundlagen von Kantenfiltern und die physiologischen Aspekte von Anwendungen, unter anderem die nicht immer gegebene Notwendigkeit von Blaufiltern und die mangelnde Wirksamkeit von Farbfiltern bei Farbsehstörungen.

Abstract

Light filters with wavelength-dependent transmission and in particular cut-off or step filters (steep dependence of transmission on wavelength) have a broad optical application and are relevant in ophthalmology. This article describes some physical and physiological principles of cut-off filters, discusses the physiological aspects of applications, specifically the not always relevant necessity of blue-reducing filters and the lack of efficacy of color filters with color vision deficiencies.

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Danksagung

Wir danken Ralf Blendowske, Wolf Harmening, Tim-Tobias Schilling und Tom van den Berg für hilfreiche Korrekturen und Ergänzungen.

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Correspondence to M. Bach.

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Interessenkonflikt

M. Bach und K. Rohrschneider geben an, dass kein Interessenkonflikt besteht.

Dieser Beitrag beinhaltet keine von den Autoren durchgeführten Studien an Menschen oder Tieren.

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Bach, M., Rohrschneider, K. Kantenfilter. Ophthalmologe 115, 922–927 (2018). https://doi.org/10.1007/s00347-018-0703-3

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