Savel brain dump in English!

In some model of LCD modules there is special film. The purpose of this plastic sheet is to distribute light. I think this plastic is embossed with some prism or other pattern like Fresnel lenses. Just look at the images:

The film likes to make images double. But only when looking from one side. From other […]

Gastroscope: A flexible, lighted instrument that is put through the mouth and down the esophagus to view the stomach. Tissue from the stomach can also be removed through the gastroscope.

Cool toy for every man. It is very old, Olympus JF-B3 medical apparatus. Also I have special cool light source device. There is […]