Demainbray's convex lens
Convex lens in wooden stand, maker unknown, c.1750. Once belonged to Stephen Demainbray.
This lens once belonged to Stephen Demainbray and was used by him in his lectures on natural philosophy. It is a plano-convex lens of crown glass with a focal length of approximately two feet. Demainbray worked as superintendent at the King's observatory at Kew from 1768 and his collection of instruments and apparatus was absorbed into the King's own collection. The lens is itemised in the Queen's Catalogue.
- King George III
- Object Number:
- furnishing and equipment
- tools & equipment
- King's College, London
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