![A handheld smartphone-controlled spectrophotometer based on hue to wavelength conversion for molecular absorption and emission measurements - ScienceDirect A handheld smartphone-controlled spectrophotometer based on hue to wavelength conversion for molecular absorption and emission measurements - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0925400516311911-fx1.jpg)
A handheld smartphone-controlled spectrophotometer based on hue to wavelength conversion for molecular absorption and emission measurements - ScienceDirect
![Smartphone based optical spectrometer for diffusive reflectance spectroscopic measurement of hemoglobin | Scientific Reports Smartphone based optical spectrometer for diffusive reflectance spectroscopic measurement of hemoglobin | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-017-12482-5/MediaObjects/41598_2017_12482_Fig1_HTML.jpg)
Smartphone based optical spectrometer for diffusive reflectance spectroscopic measurement of hemoglobin | Scientific Reports
Fabrication of a Smartphone-Based Spectrophotometer and Its Application in Monitoring Concentrations of Organic Dyes | ACS Omega
![Ultra-portable, wireless smartphone spectrometer for rapid, non-destructive testing of fruit ripeness | Scientific Reports Ultra-portable, wireless smartphone spectrometer for rapid, non-destructive testing of fruit ripeness | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fsrep32504/MediaObjects/41598_2016_Article_BFsrep32504_Fig1_HTML.jpg)