They Invented What? (No. 17)

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U.S. Pat. No. 5,175,571:  Glasses with subliminal message.

 

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A pair of subliminal imaging spectacles adapted to be worn on the head, in front of the eyes, and comprising:

a pair of lenses adapted to be located in front of the eyes of the subject,

and, a pair of subliminal message images on said respective ones of said pair of lenses said message images covering a predetermined area in front of each eye and located upwardly of the normal line of sight, and spaced apart a predetermined distance whereby to take advantage of the stereoscopic effect of human vision thereby effectively causing said two images to merge as one.

2. A pair of subliminal imaging spectacles as claimed in claim 1 wherein said glasses comprise sunglasses having tinted lenses.

3…

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