Using your phone's internet browser
go to:  qna.rediff.com
Click and drag this link to
the Home icon in your browser.
Q.

FFF :Who invented eyeglasses during the 9th century ?

Tags: sports, education, entertainment
Asked by truth exposed, 21 Jan '13 10:08 pm
  Invite a friend  |  
  Save  |  
 Earn 10 points for answering
Answer this question  Earn 10 points for answering    
4000 characters remaining  
  
    
Keep me signed inNew User? Sign up

Answers (4)

 
1.

Corrective lenses were used by Abbas Lbn Firnas in the 9th century These glasses were shaped and polished into round "rocks" for viewing. They were known as "reading stones".
Answered by LIPSIKA, 21 Jan '13 10:16 pm

 
  
Report abuse
Useful
 (1)
Not Useful
 (0)
Your vote on this answer has already been received
2.

Abbas Lbn Firnas
Answered by Uncommon Freind, 21 Jan '13 10:10 pm

 
  
Report abuse
Useful
 (1)
Not Useful
 (1)
Your vote on this answer has already been received
3.

It depends on what you mean by "glasses". Lenses for magnification (reading glasses) go back to 8th century BC in Egypt. In the first century, Nero used a Globe full of water to magnify, and possibly a ground emerald as a corrective lens.

Corrective lenses were used by Abbas Lbn Firnas in the 9th century These glasses were shaped and polished into round "rocks" for viewing. They were known as "reading stones".

Sunglasses were used in China in the 12th century.

The first date were someone tried to claim priority was in 1284 in Italy by Salvino D'Armate.

Salvino D'Armate is credited with inventing the first wearable eyeglasses in 1284. However, Egyptian hieroglyphs dating to the first century AD show people using glass sheets as a manner of vision correction
Answered by iqbal seth, 22 Jan '13 08:26 am

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received
4.

Abbas Lbn Firnas
Answered by anil garg, 22 Jan '13 02:06 am

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received

Ask a Question

Get answers from the community

600 characters remaining