Demainbray's optical model
Optical model of a spectrum brought to a focus, maker unknwon, 1752. Once belonged to Stephen Demainbray. A handwritten inscription on the base reads: 'Prism, Screen & Convex Lens/.../Focus '3''.
This model is one of a series of optical models that were once owned by Stephen Demainbray and used by him in his lectures on natural philosophy. it consists of a pinhole in wood with a prism, a convex lens, and a screen. Originally silk cords would have been used to represent the rays of light. 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.
- King George III
- Object Number:
- visual and verbal communication
- furnishing and equipment
- tools & equipment
- King's College, London
- Unlinked Name
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