Re: "liquid crystal driver" sighting


Liquid crystals are used in welding masks to darken the weld flash instantly. I think they have other applications in high speed photography, and electronic shutters. So maybe this was part of some kind of optics laboratory?

In the original Ebay picture it was possible to read the text on the plugin. On the wiki page the test is unreadable. Here is the full size image with readable text.;si=0Rv3bZb%252FLMGiec3%252F7Qc8K%252F3QYFs%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557

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