Above, the spectrum of a fluorescent bulb taken by an iPhone spectrometer. Below, a comparison of spectra from an iPhone and a commercial spectrometer manufactured by Ocean Optics.
Stained samples of pollen (left images) and plant stems (right two images). Top row: commercial microscope. Bottom row: cell phone microscope (Image: Z. J. Smith, K. Chu, A. R. Espenson, M. Rahimzadeh, A. Gryshuk, M. Molinaro, D. M. Dwyre, S. Lane, D. Matthews, S. Wachsmann-Hogiu)
The upper row shows images of blood samples taken with a traditional microscope. From left to right: normal, iron deficiency anemia, and sickle cell anemia. The bottom row shows the same samples imaged on an iPhone.
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