As part of her Social Defense Mechanisms: Tools for Reclaiming our Personal Space research, Limor Fried (creator of the Wave Bubble and the Minty MP3) developed the Media-Sensitive Glasses that automatically darken whenever a television is in view, so as to protect the wearer from television’s “hypnotic” effect.

The name of this project originates from the fictional “Peril-Sensitive Sunglasses” used by one of the characters in The Hitchhiker’s Guide to the Galaxy.

Via IEEE. DIY with the PDF of her research.

Related: SeeFree, the Visual Spam Blocking System.