Thursday, April 3, 2014

Weekly Vocabulary

1. Vest Pocket Kodak-  was a "vest pocket" strutfolding camera advertised as "The Soldier's camera" during WWI
2. Meniscus Lens-  a convex-concave lens and is thicker at the center than at the edges
3. Rapid Rectinear Lens (RR Lens)- is made of a symmetrical pair of cemented doublets

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