View Bifocals Made By Benjamin Franklin Pics. Franklin wrote, in august 1784 to his friend george whatley, that he was happy in the invention of double spectacles, which serving for distant objects as well as near ones, make my eyes as useful to me as ever they. He never patented any of his inventions, likely costing him a fortune.

Benjamin Franklin Father Of The Bifocal from www.antiquespectacles.com

I really liked the idea of an autobiography by benjamin franklin, however it was not what i expected. Anyone tired of switching between two pairs of glasses understands why franklin much has been made of franklin's years in paris, chiefly his rich romantic life in his nine years. He created the lightning rod, the franklin stove and bifocals.

Franklin's invention made life easier for people.

The glasses are nested in each other—which makes the instrument more compact and playable—and are. Von rohr and several others credit optician samuel pierce with making bifocals for franklin. 636 x 391 jpeg 62 кб. The glasses are nested in each other—which makes the instrument more compact and playable—and are.