Glasses

Содержание

1. Glasses
2. Historical types of glasses include the pince-nez, monocle, lorgnette, and scissor or scissors-glasses.Scissors-glasses
3. Monocle
4. Pince-nez
5. Lorgnette
6. The earliest historical reference to magnification dates
7. Based on research conducted by British scientist
8. The American scientist Benjamin Franklin, who suffered
9. Corrective lenses are used to correct refractive errors of the eye.
10. Glasses can be a major part of
11. Modern glasses:
12. Thank you!!!!!!!!!!! Good luck!!!!!!!!!
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Historical types of glasses include the pince-nez, monocle, lorgnette, and scissor or scissors-glasses.Scissors-glasses

Слайды и текст этой презентации

Слайд 1Glasses – are also called eyeglasses (formal), spectacles, or specs

(informal) for vision correction or eye protection. Sunglasses allow better

vision in bright daylight, and may protect against damage from high levels of ultraviolet light. Other types of glasses may be used for viewing visual information or simply just for fashion values.

Glasses – are also called eyeglasses (formal), spectacles, or specs (informal) for vision correction or eye protection.

Слайд 2Historical types of glasses include the pince-nez, monocle, lorgnette, and

scissor or scissors-glasses.
Scissors-glasses

Слайд 6The earliest historical reference to magnification dates back to ancient

Egyptian hieroglyphs in the 5th century BC, which depict "simple

glass meniscal lenses". The earliest written record of magnification dates back to the 1st century AD, when Seneca the Younger, a tutor of Emperor Nero of Rome, wrote: "Letters, however small and indistinct, are seen enlarged and more clearly through a globe or glass filled with water". Nero (reigned 54–68 AD) is also said to have watched the gladiatorial games using an emerald as a corrective lens.

The earliest historical reference to magnification dates back to ancient Egyptian hieroglyphs in the 5th century BC,

Слайд 7Based on research conducted by British scientist and historian Sir

Joseph Needham, spectacles were first invented 1000 years ago in

ancient China and was in widespread consumer use in by the Chinese aristocrats, Imperial family, rich civilians and elderly at the time of Marco Polo's arrival in 1270 or 1271. Alternatively, some people theorize that spectacles were first invented between 1280 and 1300 in Italy. Some also theorize that the first European inventor of spectacles was Salvino D'Armate

Based on research conducted by British scientist and historian Sir Joseph Needham, spectacles were first invented 1000

Слайд 8The American scientist Benjamin Franklin, who suffered from myopia adopted

bifocals in 1784 to avoid having to regularly switch between

two pairs of glasses although the claim that he actually invented them is disputed. The first lenses for correcting astigmatism were constructed by the British astronomer George Airy in 1825.

The American scientist Benjamin Franklin, who suffered from myopia adopted bifocals in 1784 to avoid having to

Слайд 9Corrective lenses are used to correct refractive errors of the

eye.

$Corrective lenses are used to correct refractive errors of the eye.$

Слайд 10Glasses can be a major part of personal image and

expression, from Groucho Marx and Buddy Holly to the extravagance

of Elton John and Dame Edna Everage. Eyewear became a fashion accessory in the 1950s. Browline glasses were the standard for men in the 1950s and 1960s.