Demainbray's model of a camera obscura

Made:
1752
Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the Group shot of Scioptric ball, Camera obscura, dated before 1753, circa 1701-1752, Convex mirror on stand dated 1752 and Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the

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Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Group shot of Scioptric ball, Camera obscura, dated before 1753, circa 1701-1752, Convex mirror on stand dated 1752 and
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the
Science Museum Group
© The Board of Trustees of the Science Museum, London

Model showing the principle of a camera obscura, 1752. The camera obscura was a popular sketching instrument in the
Science Museum Group
© The Board of Trustees of the Science Museum, London

Model demonstrating the principle of a camera obscura, unknown maker, 1752, but once belonged to Stephen Demainbray.

Model showing the principle of a camera obscura. This belonged to Stephen Demainbray and was used by him in his lectures on natural philosophy. It was sketched by Pere Chabrol, an attendee of one of the lectures in 1753.

The light rays, represented by threads, start from the coloured cross on the right, through the lens and are then reflected by the 45 degree mirror onto the horizontal screen above it. The cross on the left demonstrates the path of the light rays had the mirror not been present. 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. It was itemised in the Queen's catalogue.

Details

Category:
King George III
Object Number:
1927-1141
Materials:
cotton (fibre), fruitwood, ivory, mahogany, paint and paper (fibre product)
type:
optical demonstration equipment
taxonomy:
  • furnishing and equipment
  • tools & equipment
credit:
King's College, London