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

authored by

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.

Organisation(s)

Hannover Centre for Optical Technologies (HOT)
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

Hannover Medical School (MHH)

Type

Article

Journal

Applied Sciences (Switzerland)

Volume

9

ISSN

2076-3417

Publication date

01.06.2019

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Materials Science(all), Instrumentation, Engineering(all), Process Chemistry and Technology, Computer Science Applications, Fluid Flow and Transfer Processes

Sustainable Development Goals

SDG 3 - Good Health and Well-being

Electronic version(s)

https://doi.org/10.3390/app9112177 (Access: Open)