Description
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Newton’s Rings Apparatus
Description
A flat glass plate and a slightly convex lens of 50 mm diameter Are placed in a metal frame with three pressure adjusting screws to produce Newtons Rings.
Combination of two lenses in Aliminium Frame.
Wooden stand with inclined glass plate.
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Linen Tester
Description
These are collapsible pocket magnifiers. The optical system is a single element, glass Double Convex Lens. The housing is made of machined, black high grade plastic for a high finish look. These magnifiers fold flat to fit in your pocket. Scales are etched on the inner faces of the viewers base.
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