What year were 3D glasses invented?

Answer The original 3D glasses were invented by Wilhelm Rollmann in 1853. The glasses are made with one red lens and one cyan lens. When wearing the 3D glasses and looking at a screen with 3D technology, ... Read More »

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In what year were eye glasses invented?

The Chinese developed eyeglasses over 2,000 years ago to protect their eyes from evil forces, according to optometrist Richard D. Drewry, Jr. of Teagle Optometry. In 1730, London-based optician Ed... Read More »

What did people do before glasses were invented?

It seems glasses started to be used about 1450 (at least you start seeing people with glasses appearing in engravings, wood-cuts, paintings, etc starting about that time. Before this, for most peop... Read More »

When were bifocal glasses invented?

The invention of bifocal glasses is credited to Benjamin Franklin in 1760. However, some historians believe they may have been invented by Benjamin West or Sir Joshua Reynolds in the same year. Bif... Read More »

How did humans see before glasses (spectacles) were invented?

Contrary to popular belief they had very poor eyesight. With no artificial lighting their eyes would be straining almost constantly. For example, if a person wanted to read or do embroidery during ... Read More »