Non-contact dermatoscope with ultra-bright light source and liquid lens-based autofocus function

verfasst von

Dierk Fricke, Evgeniia Denker, Annice Heratizadeh, Thomas Werfel, Merve Wollweber, Bernhard Roth

Abstract

Dermatoscopes are routinely used in skin cancer screening but are rarely employed for the diagnosis of other skin conditions. Broader application is promising from a diagnostic point of view as biopsies for differential diagnosis may be avoided but it requires non-contact devices allowing a comparably large field of view that are not commercially available today. Autofocus and color reproducibility are specific challenges for the development of dermatoscopy for application beyond cancer screening. We present a prototype for such a system including solutions for autofocus and color reproducibility independent of ambient lighting. System performance includes sufficiently high feature resolution of up to 30 μm and feature size scaling fulfilling the requirements to apply the device in regular skin cancer screening.

Organisationseinheit(en)

Hannoversches Zentrum für Optische Technologien (HOT)
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Medizinische Hochschule Hannover (MHH)

Typ

Artikel

Journal

Applied Sciences (Switzerland)

Band

9

ISSN

2076-3417

Publikationsdatum

01.06.2019

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffwissenschaften (insg.), Instrumentierung, Ingenieurwesen (insg.), Prozesschemie und -technologie, Angewandte Informatik, Fließ- und Transferprozesse von Flüssigkeiten

Ziele für nachhaltige Entwicklung

SDG 3 – Gute Gesundheit und Wohlergehen

Elektronische Version(en)

https://doi.org/10.3390/app9112177 (Zugang: Offen)