Smartphone dermoscopy with linear polarizers and light reflector

Techniques for acquiring dermoscopic images using readily available equipment are of interest for telemedicine. 1 Liang B.M.H. Ruler dermoscopy and ruler-smartphone dermatoscope. J Am Acad Dermatol. 2021; https://doi.org/10.1016/j.jaad.2021.08.053 Abstract Full Text Full Text PDF Scopus (1) Google Scholar Unlike nonpolarized dermoscopy, polarized dermoscopy can capture without using immersion fluid and may be more useful for certain lesions. Attaching linear polarizer sheets to a smartphone offers cross-polarized photography. 2 Bae J.M. Ju H.J. Simple cross-polarized photography using a smartphone. J Am Acad Dermatol. 2020; 82: e185-e186 Abstract Full Text Full Text PDF PubMed Scopus (3) Google Scholar However, the built-in flashlight of the smartphone may not be able to illuminate the lesions as bright as desired for dermoscopy purpose.