Microlens fabrication on tot'hema sensitized gelatin

Photosensitivity of tot'hema and eosin sensitized gelatin layer (TESG) is analyzed. Tot'hema is a trade name of a drinkable solution used in medicine for treatment of anemia, while eosin is an organic dye, used in medicine too. The resulting material is cheap, easy to use, nonpoisoneous and photosensitive in the green part of spectrum. Microlenses, arrays of microlenses and sinusoidal transmission diffraction gratings were recorded using Nd:YAG laser operating at 532 nm.