𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Giant safe—will protect precious documents


Publisher
Elsevier Science
Year
1953
Tongue
English
Weight
80 KB
Volume
255
Category
Article
ISSN
0016-0032

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✦ Synopsis


Turner. Optical elements of binoculars, microscopes and many other optical products are now coated with anti-reflection films, some as thin as fourmillionths of an inch. The thickness of the film determines its reflecting quality.

The company has prepared, for free distribution, a descriptive brochure on how to get the most out of them giving the characteristics of the new films and brief suggestions.