• How Camera Lenses Affect What The Viewer Sees

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Issue:

Technology

 

Written by:

Angel K

 

Date added:

September 12, 2015

 

Level:

University

 

Grade:

C

 

No of pages / words:

13 / 3417

 

Was viewed:

8984 times

 

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Essay content:

Manufactured lenses are typically made of glass or transparent plastic. Elements which refract electromagnetic radiation outside the visual spectrum are also called lenses: for instance, a microwave lens can be made from paraffin wax. The archaic spelling lense is sometimes seen, but Merriam Webster's medical dictionary is the only major dictionary that considers this to be correct...
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The earliest written records of lenses date to Ancient Greece, with Aristophanes' play The Clouds (424 BC) mentioning a burning-glass (a biconvex lens used to focus the sun's rays to produce fire). The writings of Pliny the Elder (23–79) also show that burning-glasses were known to the Roman Empire, and mentions what is possibly the first use of a corrective lens: Nero was said to watch the gladiatorial games using an emerald (presumably concave to correct for myopia, though the reference is vague)...
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