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Summary

Description	Illustration of achromatic doublet
Date	26 May 2008
Source	English Wikipedia (removed background and English text)
Author	DrBob, Pitel
Permission ( Reusing this file)	GFDL

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	This licensing tag was added to this file as part of the GFDL licensing update.CC-BY-SA-3.0 truetrue

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About Schools Wikipedia

Schools Wikipedia was created by children's charity SOS Children's Villages. The world's largest orphan charity, SOS Childrens Villages brings a better life to more than 2 million people in 133 countries around the globe. Have you heard about child sponsorship? Learn more...