Carbon Arc Lamp

13 Dec 2023

Used as a White Light source for our optics demonstrations for many decades.

Registered in the Irish National Inventory of Historic Scientific Instruments by Charles Mollan with the following reference.

1974 UCP201 LANTERN-UNIAL

Manufactured by Newton & Co Scientific Instrument Makers to H. M. the King & co, 3 Fleet Street, London. Early 20^th Century

Description; Mahogany base; Russian iron housing; arc lamp; slit. Signed brass plate, screwed on with four knurled nuts, holds Mahogany and brass lens system mount; at the end of the base is a condensing biconvex lens in an oxidised brass mount with two right-angles which fits into a square hole, and has a sleeve to adjust its position;  a moving prism mount with a cut disc shield can also fit into a hole in the base; a signed adjustable brass slit with two knobs is fitted.