Essentials of modern lens theory and practice
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Catalogue Number: 1824
Essentials of modern lens theory and practice
Category: Book
Sub-Category: Book of historical note
Author: CALKINS, Tracy H
Year Of Publication/Manufacture: 1950
Edition: 2nd Edition
Time Period: 1940 to 1999
Place Of Publication/Manufacture: Indianapolis, Indiana, USA
Publisher/Manufacturer: Continental Optical Company
Description Of Item: Soft wine colour 'vinyl' covers, 80 pages, 36 figures and 17 tables in text
Historical Significance: This book is a product promotion booklet about the properties of the Kurova corrected curve single vision lens and its development in Part 1. In Part 2 the history of bifocal lenses (Franklin split lens, solid upcurve, Perfection bifocal, cement bifocals, Opifex, Kryptok) is described followed by a Chapter on Ultex bifocals. There is a concluding chapter on prism effects in bifocals. The first edition published in 1941 is Cat No 1825.
How Acquired: Donated by Family of N Jack Neilson, who worked with Australian Optical Company Ltd in Melbourne in the mid 20thC
Date Acquired: March 2011
Condition: Very good
Location: Archive room. East wall. Books of historical note
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